CN221366696U - Double-rotating-shaft rotating mechanism and seat assembly with same - Google Patents

Abstract

The utility model discloses a double-rotating-shaft rotating mechanism and a seat assembly with the same, wherein the double-rotating-shaft rotating mechanism comprises: the rotary device comprises a fixed base, a rotary body rotatably arranged on the fixed base and a rotary part arranged between the fixed base and the rotary body. The rotating part includes: the rotating support comprises a first rotating shaft assembly, a second rotating shaft assembly and a rotating support, wherein the first rotating shaft assembly and the second rotating shaft assembly are arranged at intervals along the extending direction of the rotating body. And the first rotating shaft assembly comprises a first rotating shaft rotatably arranged on the fixed base. One end of the rotating bracket is arranged on the first rotating shaft and extends along the extending direction of the rotating body. The second rotating shaft assembly comprises a second rotating shaft, one end of the second rotating shaft is arranged at the other end of the rotating support, and the other end of the second rotating shaft is rotatably arranged on the rotating body. And the second rotating shaft is far away from the fixed base relative to the first rotating shaft. The two rotating shafts are arranged, so that the center of the rotating shaft can move forward when the rotating body rotates.

Description

Double-rotating-shaft rotating mechanism and seat assembly with same

Technical Field

The utility model relates to the field of mechanical transmission, in particular to a double-rotating-shaft rotating mechanism and a seat assembly with the same.

Background

The rotating connection is a common connecting structure in the field of mechanical transmission, and is commonly connected with a rotating shaft, a hinge, a pin shaft and the like, and the rotating shaft is used for connecting a rotating body or other parts on a connected object in a rotatable mode by arranging the rotating shaft, so that the rotating body connected with the rotating shaft can rotate relative to the connected object under normal conditions, but when one end of the rotating body is provided with a bulge or other structures, the bulge can interfere with the connected object or a peripheral part in the rotating process of the rotating body, thereby limiting the rotation or relative rotation of the rotating body. For example, taking a rear seat of an automobile as an example, when the rear seat of the automobile is put down, the rear side of the lower end of the backrest interferes with a trunk, a vehicle body, etc., and specifically, referring to fig. 1, at this time, the rear portion of the rear seat interferes with other components in the vehicle, and cannot be completely leveled.

Therefore, the rotating shaft connecting structure in the prior art has the problem that the opening or the rotating angle of the rotating body can be influenced when the rotating body is provided with a bulge at one end close to the rotating shaft or other structures interfere.

Disclosure of utility model

The utility model aims to solve the problem that the rotating shaft connecting structure in the prior art influences the opening or rotating angle of a rotating body when a bulge exists at one end of the rotating body, which is close to a rotating shaft, or other structural interference exists.

In order to solve the above technical problems, an embodiment of the present utility model discloses a dual-spindle rotating mechanism, including: the rotary device comprises a fixed base, a rotary body rotatably arranged on the fixed base and a rotary part arranged between the fixed base and the rotary body.

The rotating part includes: the rotating support comprises a first rotating shaft assembly, a second rotating shaft assembly and a rotating support, wherein the first rotating shaft assembly and the second rotating shaft assembly are arranged at intervals along the extending direction of the rotating body. And the first rotating shaft assembly comprises a first rotating shaft rotatably arranged on the fixed base. One end of the rotating bracket is arranged on the first rotating shaft and extends along the extending direction of the rotating body. The second rotating shaft assembly comprises a second rotating shaft, one end of the second rotating shaft is arranged at the other end of the rotating support, and the other end of the second rotating shaft is rotatably arranged on the rotating body. And the second rotating shaft is far away from the fixed base relative to the first rotating shaft.

By adopting the technical scheme, the utility model creatively provides the double-rotating-shaft rotating mechanism which at least comprises the rotating body, the fixed base and the rotating part, wherein the rotating part comprises the first rotating shaft component and the second rotating shaft component which are arranged at intervals, the second rotating shaft is far away from the fixed base relative to the first rotating shaft, the double-rotating-shaft rotating mechanism has the structure that the first rotating shaft component rotates firstly in the rotating process and then drives the second rotating shaft component, the rotating support and the rotating body to rotate forwards, and it can be understood that the rotating center of the second rotating shaft component is inevitably displaced forwards after the second rotating shaft component rotates forwards around the first rotating shaft component, namely, when the rotating body overturns around the second rotating shaft component, the rotating shaft center of the rotating body is more forward than the initial state, interference with other objects can not occur during rotation, and through the design of the double-rotating-shaft structure, even if one end of the rotating body, which is close to the rotating shaft, has bulges or other structures interfere, the actual rotating center can be adjusted through the double-rotating-shaft rotating mechanism, so that the influence on the rotating or opening angle of the rotating body is avoided.

For example, when this dual spindle rotary mechanism is applied in vehicle seat, the rotator is the seat this moment, and when the seat needs to fall, through setting up dual spindle rotary mechanism for the pivot center when the rotation of seat falls moves forward, and the lower extreme of seat back just can not interfere with suitcase, automobile body etc. to make rotator (seat) can realize pure flat falling. And this two pivot rotary mechanism all adopts the rotating member, when upset rotator (seat), realizes the forward movement in pivot center through the rotation of two pivots, has simple structure, convenient to use and application scope wide advantage.

The embodiment of the utility model also discloses a double-rotating-shaft rotating mechanism, wherein the fixed base comprises a supporting part extending towards the rotating body, and the first rotating shaft is rotatably arranged in a first shaft hole of the supporting part in a penetrating way. And the first shaft assembly further includes a resilient return member. The elastic reset member is arranged at one end of the first rotating shaft, which extends out of the supporting part and is far away from the rotating support, one end of the elastic reset member is fixedly connected with the supporting part, the other end of the elastic reset member is fixedly connected with the end part of the first rotating shaft, and a rotating restoring force is applied to the first rotating shaft.

Preferably, the elastic restoring member is a coil spring, an outer ring end portion of the coil spring is fixedly connected with the supporting portion, and an inner ring end portion of the coil spring is fixedly connected with an end portion of the first rotating shaft to provide a rotational restoring force for the first rotating shaft. The end part of one end of the first rotating shaft far away from the rotating support is also clamped and provided with a retaining ring, and the coil spring is sleeved at the end part of the first rotating shaft through the retaining ring.

By adopting the technical scheme, the elastic reset member (coil spring) is arranged at one end of the first rotating shaft, which extends out of the supporting part and is far away from the rotating support, and the elastic reset member can provide rotary restoring force for the first rotating shaft when the double-rotating-shaft rotating mechanism rotates, so that the first rotating shaft rotates at a certain angle and drives the second rotating shaft assembly, the rotating support and the rotating body to rotate forwards. When the elastic reset component is arranged into a common coil spring, the standard component can be directly adopted, so that the cost can be reduced, and the application range is improved.

The embodiment of the utility model also discloses a double-rotating-shaft rotating mechanism, and the first rotating shaft assembly further comprises a rotating limiting member, wherein the rotating limiting member is fixedly arranged on the supporting part, is arranged at intervals from the first rotating shaft in the radial direction of the first rotating shaft and extends towards the rotating bracket.

The rotating support is provided with a limiting hole matched with the rotating limiting member, and when the rotating support rotates by a first rotation angle from an initial position along with the first rotating shaft relative to the supporting part, the rotating limiting member is in limiting clamping fit with the limiting hole. The limiting hole is in a kidney-shaped hole shape when seen along the axial direction of the first rotating shaft; and the first rotation angle is in the range of 0 to 20 degrees.

By adopting the technical scheme, the rotary limiting member is used for limiting the first rotating shaft, and particularly, the rotary limiting member is used for limiting the first rotating shaft after rotating the first rotating shaft by a first rotating angle, the first rotating shaft is not limited in the first rotating angle range, and the rotary support is provided with the limiting hole in the shape of the kidney-shaped hole, so that the limiting effect is better.

The embodiment of the utility model also discloses a double-rotating-shaft rotating mechanism, wherein the rotating limiting member is a movable limiting pin which is arranged on the supporting part and extends towards the rotating bracket; wherein the movable limiting pin can reciprocate along the axial direction of the first rotating shaft.

By adopting the technical scheme, the rotary limiting member is arranged as the movable limiting pin, and when the rotary support rotates to the first rotation angle from the initial position along with the first rotating shaft relative to the supporting part, the movable limiting pin stretches out and is clamped with the limiting hole, so that the limit on the rotary support and the first rotating shaft is realized.

The embodiment of the utility model also discloses a double-rotating-shaft rotating mechanism, the second rotating-shaft assembly further comprises a connecting bracket, the connecting bracket is arranged between the rotating body and the rotating bracket, one end of the second rotating shaft penetrates through the rotating bracket, and the other end of the second rotating shaft rotatably penetrates through the connecting bracket and is arranged on the rotating body. And one side part of the connecting bracket is fixedly connected with the rotating body, and the other side part is abutted against the side wall of the rotating bracket.

By adopting the technical scheme, the second rotating shaft, the connecting support and the rotating body can rotate relative to the rotating support, and the connecting support and the rotating body can rotate relative to the second rotating shaft.

The embodiment of the utility model also discloses a double-rotating-shaft rotating mechanism, wherein a locking component is arranged on one side of the connecting bracket, which is close to the rotating body, and is used for locking the second rotating shaft; the locking component comprises a inhaul cable, an inhaul cable cam and a tension spring which are connected in a sequential transmission mode.

The cable cam is rotatably arranged at one side of the connecting bracket, which is close to the rotating body, and at the position, which is close to the second rotating shaft, of the connecting bracket, a cable connecting end used for being connected with a cable is arranged on the cable cam, a tension spring is arranged between the cable cam and the connecting bracket, one end of the tension spring is fixed on the cable cam, and the other end of the tension spring is fixed on the connecting bracket. And, the one end that the cable cam is close to the second pivot is provided with spacing arch, is provided with the spacing draw-in groove with spacing protruding adaptation in the second pivot.

By adopting the technical scheme, the locking assembly is used for locking the second rotating shaft, the second rotating shaft is in front of rotation, the second rotating shaft is locked at the moment through the limiting protrusion on the inhaul cable cam and the limiting clamping groove on the second rotating shaft, and after the inhaul cable is pulled to separate the limiting protrusion from the limiting clamping groove, the second rotating shaft can rotate, and the rotating body can also rotate at the moment.

The embodiment of the utility model also discloses an automobile seat assembly, which comprises the double-rotating-shaft rotating mechanism of any one of the above-mentioned components; the seat base of the seat assembly is fixed on the automobile frame as a fixed base, the seat backrest is used as a rotating body, and one end of the seat backrest is rotatably arranged on the seat base. The rotating part is arranged between the seat base and the seat backrest.

By adopting the technical scheme, the automobile seat assembly provided with the double-rotating-shaft rotating mechanism can be overturned relative to the automobile frame, and can not collide or interfere with other structures of the automobile in the overturning process.

Embodiments of the present utility model also disclose a seat assembly, further comprising:

The unlocking buckle is arranged at the end part of the seat backrest, which is far away from the seat base.

And the seat back lock is arranged on the outer side of the seat back and is detachably locked with the vehicle body.

The locking inhaul cable comprises a connecting end and two unlocking ends, the connecting end is connected with the unlocking buckle, one of the two unlocking ends is connected with the seat backrest lock, and the other unlocking end is connected with the inhaul cable in the locking assembly. When the seat back lock is locked with the vehicle body, the elastic reset member is in a compressed state, and the locking assembly is in locking connection with the second rotating shaft.

By adopting the technical scheme, when the seat needs to be put down, the unlocking buckle is pulled to unlock, and because the locking stay rope comprises the connecting end and the two unlocking ends, the unlocking buckle is pulled to unlock the seat back lock and the locking component on one side of the second rotating shaft simultaneously, at the moment, the seat is unlocked, the elastic reset component can drive the first rotating shaft to rotate, the first rotating shaft drives the seat and the second rotating shaft component and the rotating bracket to rotate by a first rotating angle, the first rotating shaft is limited and fixed by the rotating limiting component and cannot rotate, and after the first rotating angle is rotated, the second rotating shaft moves forwards relative to the first rotating shaft by a part of displacement, at the moment, the seat can rotate relative to the second rotating shaft, the seat can be put down in a pure flat mode by manually pressing the seat, and the seat can not interfere with other parts.

The embodiment of the utility model also discloses a seat assembly, wherein the seat base comprises a seat cushion and an intermediate fixing member for fixing the seat cushion on a vehicle frame; the middle fixing member comprises an integrally formed connecting flanging and a supporting frame serving as a supporting part.

The connection flanging is positioned at the bottom of the support frame and arranged along the horizontal direction, a plurality of fixed connection holes are formed in the connection flanging, and the connection flanging is detachably and fixedly connected with the automobile frame. And the first rotating shaft is rotatably arranged on the support frame in a penetrating way.

By adopting the technical scheme, the seat cushion is fixed on the automobile frame through the middle fixing member, and the connecting flanging is arranged so that the seat cushion and the automobile frame are connected more stably.

The beneficial effects of the utility model are as follows:

The utility model discloses a double-rotating-shaft rotating mechanism and a seat assembly with the same, wherein the double-rotating-shaft rotating mechanism comprises a fixed base, a rotating body, a first rotating-shaft assembly, a second rotating-shaft assembly and a rotating bracket, wherein the second rotating shaft is far away from the fixed base relative to the first rotating shaft, and by arranging the structure, the first rotating-shaft assembly rotates firstly in the rotating process of the double-rotating-shaft rotating mechanism, and then drives the second rotating-shaft assembly, the rotating bracket and the rotating body to rotate forwards, so that the rotating center of the second rotating-shaft assembly shifts forwards, and when the rotating body starts to overturn around the second rotating-shaft assembly, the rotating shaft center of the rotating body is far ahead compared with the initial state, the rotating center of the rotating body can not interfere with other objects, and the problem that when one end of the rotating body of the rotating-shaft mechanism, which is close to the rotating shaft, has bulges or has other structure interference, the rotating or opening angle of the rotating body is influenced is solved. Furthermore, in the seat assembly disclosed by the utility model, the rotating body is a seat, when the seat needs to be put down, the center of the rotating shaft moves forward when the seat rotates and is put down through the double-rotating-shaft rotating mechanism, the lower end of the seat backrest cannot interfere with a trunk, a vehicle body and the like, and the seat assembly has the advantages of simple structure, convenience in use and wide application range.

Drawings

FIG. 1 is a schematic view of a prior art seat back with the bottom interfering with other components when reclined;

FIG. 2 is a schematic diagram of an exploded structure of a dual spindle rotary mechanism according to an embodiment of the present utility model;

FIG. 3 is an exploded view of a first shaft assembly of a dual shaft rotary mechanism according to an embodiment of the present utility model;

FIG. 4 is a schematic structural diagram of a locking assembly of a dual spindle rotation mechanism according to an embodiment of the present utility model;

FIG. 5 is a schematic illustration of an exploded view of a seat assembly with a dual spindle swivel mechanism according to an embodiment of the present utility model;

FIG. 6 is a schematic view of a seat back according to an embodiment of the present utility model when the seat back is not reclined;

FIG. 7 is a schematic illustration of a seat assembly according to an embodiment of the present utility model when an unlocking knob is pulled;

FIG. 8 is a schematic view of a first spindle rotated after a seat assembly is pulled to unlock a latch according to an embodiment of the present utility model;

FIG. 9 is a schematic view of a seat back according to an embodiment of the present utility model after a first 15 ° rotation;

Fig. 10 is a schematic diagram of a seat according to an embodiment of the present utility model turning forward with a second rotation shaft as a rotation center;

FIG. 11 is a schematic view of a seat according to an embodiment of the present utility model when the seat is reclined;

FIG. 12 is a schematic illustration of a seat assembly according to an embodiment of the present utility model without interference from peripheral components when reclined;

FIG. 13 is a schematic view of a seat recline process according to an embodiment of the present utility model;

fig. 14 is a schematic view of a seat according to an embodiment of the present utility model after being fully reclined.

Reference numerals illustrate:

100. A fixed base;

110. a support part; 111. a first shaft hole;

120. connecting and flanging;

200. A rotating body;

300. A rotating part;

310. A first spindle assembly;

311. A first rotating shaft; 312. an elastic return member; 313. a retaining ring; 314. a rotation limiting member;

320. a second spindle assembly;

321. A second rotating shaft; 322. a connecting bracket; 324. a bushing; 325. a nut;

323. A locking assembly;

3231. a guy cable; 3232. a cable cam; 3233. a tension spring; 3234. a limit protrusion; 3235. a limit clamping groove;

330. rotating the bracket;

331. A limiting hole;

400. A seat back;

410. Unlocking the buckle; 420. a seat back lock;

430. locking the inhaul cable;

431. A connection end; 432. unlocking the end;

500. A seat base;

A. The extension direction of the rotating body;

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, embodiments of the present utility model will be described in further detail below with reference to the accompanying drawings.

Example 1

First, a double-shaft rotation mechanism disclosed in the present application is explained in detail in embodiment 1:

The implementation of this embodiment discloses a dual-axis rotation mechanism, which can refer to an exploded schematic view of a structure of the dual-axis rotation mechanism shown in fig. 2, and the dual-axis rotation mechanism includes: the rotary table comprises a fixed base 100, a rotary body 200 rotatably provided on the fixed base 100, and a rotary part 300 provided between the fixed base 100 and the rotary body 200.

The rotating portion 300 includes: the first and second shaft assemblies 310 and 320 and the rotation bracket 330 between the first and second shaft assemblies 310 and 320, which are disposed at intervals along the extension direction of the rotation body 200. And the first shaft assembly 310 includes a first shaft 311 rotatably provided on the stationary base 100. One end of the rotation bracket 330 is disposed on the first rotation shaft 311 to extend in the extending direction of the rotation body 200. The second rotating shaft assembly 320 includes a second rotating shaft 321, one end of the second rotating shaft 321 is disposed at the other end of the rotating bracket 330, and the other end is rotatably disposed on the rotating body 200. And the second rotation shaft 321 is further away from the stationary base 100 than the first rotation shaft 311.

Specifically, in the present embodiment, the rotation body 200 is rotatably provided on the fixed base 100 by the rotation part 300, and it can be explained with reference to fig. 2 that the first rotation shaft assembly 310 and the second rotation shaft assembly 320 are provided at intervals along the extending direction of the rotation body 200, the extending direction of the rotation body 200 being shown as the direction a in fig. 2, that is, in the extending direction of the rotation body 200, the second rotation shaft assembly 320 is closer to the rotation body 200 than the first rotation shaft assembly 310, and in the rotation direction (the height direction of the rotation body 200) around the rotation body 200, the rotation center of the second rotation shaft 321 is higher than the rotation center of the first rotation shaft 311.

Further describing the specific structure of the rotating part 300, referring to fig. 2, the rotating part 300 includes a second rotating shaft assembly 320, a rotating bracket 330 and a first rotating shaft assembly 310 sequentially disposed at one side of the rotating body 200, wherein one end of a first rotating shaft 311 in the first rotating shaft assembly 310 is rotatably connected with the fixed base 100, the other end is fixedly connected with the rotating bracket 330, one end of a second rotating shaft 321 is rotatably connected with the rotating bracket 330, and the other end is rotatably connected with the rotating body 200, on the rotating bracket 330, the rotation center of the second rotating shaft 321 is higher than the rotation center of the first rotating shaft 311, so that the rotating part 300 rotates the rotating body 200, the second rotating shaft assembly 320 and the rotating bracket 330 forward around the first rotating shaft 311, and because the rotation center of the second rotating shaft 321 in the second rotating shaft assembly 320 is higher than the rotation center of the first rotating shaft 311 on the grabbing bracket, the rotation bracket 330 rotates a certain angle, and then drives the rotation center of the second rotating shaft 321 forward, and the rotation center of the second rotating shaft 321 is more forward than the fixed base 100, and the rotation center of the second rotating shaft 321 is also capable of rotating with the second rotating shaft 321 as the rotation center.

It can be understood that the rotation center of the first rotation shaft 311 and the rotation center of the second rotation shaft 321 are unchanged during the rotation of the rotation body 200 around the first rotation shaft 311 and the second rotation shaft 321, and the rotation center of the second rotation shaft 321 is changed differently according to the rotation direction of the rotation body 200, specifically, when the rotation body 200 rotates around the first rotation shaft 311 and the second rotation shaft 321 in the counterclockwise direction, the rotation center of the second rotation shaft 321 moves forward; when the rotary body 200 rotates around the first rotary shaft 311 and the second rotary shaft 321 in the clockwise direction, the center of the second rotary shaft 321 moves backward, and in both rotation processes, the center of the second rotary shaft 321 changes relative to the initial position, so as to change the actual center of the rotary shaft of the rotary body 200, so that a person skilled in the art can adjust and design the rotary body according to the actual requirements.

More specifically, it should be noted that the first shaft assembly 310 and the second shaft assembly 320 may be rotated manually, or may be rotated automatically, for example, a motor or a motor may be disposed on the second shaft assembly 320 and the first shaft assembly 310, the rotating body 200, the first shaft 311 and the second shaft 321 may be driven to rotate by forward and reverse rotation of the motor, or an elastic reset member 312 may be disposed at an end of the first shaft 311 or the second shaft 321, and the elastic reset member 312 may be used to drive the first shaft 311 or the second shaft 321 to rotate, which may be selected by those skilled in the art according to practical needs.

Finally, it should be noted that, the dual-shaft rotating mechanism disclosed in the present application mainly includes two shaft assemblies capable of rotating relatively and having different positions, and the two shaft assemblies rotate relatively during the rotation of the rotating body 200, so as to change the position of the shaft center of the actual shaft, so that those skilled in the art can also improve the dual-shaft or adjust the structure of other parts or components in the dual-shaft rotating mechanism according to the actual requirement, but the scheme of setting the dual-shaft as a core and adjusting the center of the actual shaft is within the scope of the present application.

In summary, the embodiment of the present application provides a dual-axis rotation mechanism, which at least includes a rotation body 200, a fixed base 100, and a rotation part 300, wherein the rotation part 300 includes a first axis assembly 310 and a second axis assembly 320 which are disposed at intervals, and the second axis 321 is further away from the fixed base 100 relative to the first axis 311, and the dual-axis rotation mechanism has a structure that the first axis assembly 310 rotates first during rotation and then drives the second axis assembly 320, the rotation bracket 330, and the rotation body 200 to rotate forward, and it is understood that the rotation center of the second axis assembly 320 is necessarily displaced forward after the second axis assembly 320 rotates forward around the first axis assembly 310, that is, when the rotation body 200 turns around the second axis assembly 320, the rotation center of the rotation body 200 is more forward than in the initial state, and interference with other objects does not occur during rotation, and by the design of the dual-axis rotation mechanism, even if there is a protrusion at one end of the rotation body 200 close to the rotation axis or interference with other structures, the actual rotation center of rotation can be adjusted by the dual-axis rotation mechanism, so that the opening angle of the rotation body 200 is prevented.

For example, when the double-rotation-shaft rotating mechanism provided by the application is applied to a rear seat of a vehicle, when the rotating body 200 is a seat, and the seat needs to be reclined, by arranging the double-rotation-shaft rotating mechanism, the center of the rotation shaft when the seat rotates and is reclined moves forward, the lower end of the seat back 400 does not interfere with a trunk, a vehicle body and the like, and thus the rotating body 200 (seat) can be reclined in a pure state. And this two pivot rotary mechanism all adopts the rotating member, when upset rotator 200 (seat), realizes the forward movement in pivot center through the rotation of two pivots, has simple structure, convenient to use and application scope wide advantage.

It can be understood that the double-rotating-shaft rotating mechanism provided by the application is not limited to be applied to a rear seat of an automobile, but can be applied to other parts which can be turned and opened, such as a center control armrest, a seat table plate and the like, and can be applied to other fields except the automobile, such as the field of household appliances and the like according to actual requirements.

The first shaft assembly 310 in the twin shaft rotation mechanism will be described in detail as follows:

Referring to fig. 2 and 3, the fixing base 100 includes a support portion 110 protruding toward the rotating body 200, and a first shaft 311 rotatably penetrates through a first shaft hole 111 provided in the support portion 110. And the first shaft assembly 310 further includes a resilient return member 312. The elastic restoring member 312 is disposed at one end of the first rotating shaft 311 extending out of the supporting portion 110 and away from the rotating bracket 330, one end of the elastic restoring member 312 is fixedly connected with the supporting portion 110, and the other end is fixedly connected with an end portion of the first rotating shaft 311, so as to apply a rotational restoring force to the first rotating shaft 311. And, referring to fig. 2 in contrast, at least one bushing 324 is also provided on the first shaft 311.

Preferably, the elastic restoring member 312 is a coil spring, an outer ring end of which is fixedly coupled with the supporting portion 110, and an inner ring end of which is fixedly coupled with an end of the first rotating shaft 311 to provide a rotational restoring force to the first rotating shaft 311. The end part of the first rotating shaft 311 far away from the rotating bracket 330 is also clamped and provided with a retaining ring 313, and a coil spring is sleeved at the end part of the first rotating shaft 311 through the retaining ring 313.

Further, the elastic restoring member 312 may be a common restoring spring, a restoring leaf spring, or the like, as long as the elastic restoring member 312 provides and applies the rotational restoring force to the first shaft 311.

It should be noted that, the first rotating shaft 311 and the supporting portion 110 may be rotatably disposed, and the first rotating shaft 311 and the rotating bracket 330 may be fixedly connected, as shown in fig. 3, in this embodiment, an end of the first rotating shaft 311 connected to the rotating bracket 330 is configured as a kidney-shaped hole, and those skilled in the art may also be configured as other fastening structures or shapes according to the requirements, which is not limited in this embodiment.

With this structural design, an elastic restoring member 312 (coil spring) is disposed at one end of the first shaft 311 extending out of the supporting portion 110 and away from the rotating bracket 330, and when the dual-shaft rotating mechanism rotates, the elastic restoring member 312 provides a rotational restoring force to the first shaft 311, so that the first shaft 311 rotates by a certain angle and drives the second shaft assembly 320, the rotating bracket 330 and the rotating body 200 to rotate forward. When the elastic restoring member 312 is provided as a common coil spring, standard components can be directly adopted, so that the cost can be reduced, and the application range can be improved.

Still further, referring to fig. 2 and 3, the first shaft assembly 310 further includes a rotation limiting member 314, wherein the rotation limiting member 314 is fixedly disposed on the supporting portion 110, is spaced apart from the first shaft 311 in a radial direction of the first shaft 311, and protrudes toward the rotation bracket 330. The rotating bracket 330 is provided with a limiting hole 331 adapted to the rotating limiting member 314, and when the rotating bracket 330 rotates by a first rotation angle from the initial position relative to the supporting portion 110 along with the first rotating shaft 311, the rotating limiting member 314 is in a limiting clamping fit with the limiting hole 331. The limiting hole 331 is in a kidney-shaped hole shape when seen along the axial direction of the first rotating shaft 311; and the first rotation angle is in the range of 0 to 20 degrees. It should be noted that, the rotation limiting pin in this embodiment refers to a limiting pin that limits the first rotation shaft 311 after rotating the first angle, and does not refer to a rotation limiting pin that can rotate, so that those skilled in the art can select and design according to actual requirements.

Specifically, in this embodiment, the first rotation angle may be any value within the range of 10 °,15 °,20 °, or 0-20 °, and when the first rotation angle is different, the displacement of the forward movement of the rotation axis center of the second rotation axis 321 is also different, for example, when the first rotation angle is 10 °, the rotation axis center of the second rotation axis 321 moves forward by 10mm, when the first rotation angle is 15 °, the rotation axis center of the second rotation axis 321 moves forward by 15mm, and when the first rotation angle is 20 °, the rotation axis center of the second rotation axis 321 moves forward by 20mm.

It should be noted that, the rotation limiting member 314 is limited after the rotation bracket 330 rotates by the first rotation angle relative to the supporting portion 110 from the initial position along with the rotation of the first rotation shaft 311, so the rotation limiting member 314 may be various common limiting members, and may be limited and clamped after the rotation bracket 330 rotates by the first rotation angle, for example, the rotation limiting member 314 and the limiting hole 331 may be clamped after the rotation of the first rotation angle, and the limiting hole 331 may be a special-shaped hole with other structures, and is not limited to the kidney-shaped hole.

By adopting the above technical scheme, the rotation limiting member 314 is used for limiting the first rotating shaft 311, and particularly, when the first rotating shaft 311 rotates by a first rotation angle and then limiting, the first rotating shaft 311 is not limited in the first rotation angle range, and the limiting hole 331 with the waist-shaped hole shape is arranged on the rotating bracket 330, so that the limiting effect is better.

The implementation of the present embodiment also discloses a dual spindle rotation mechanism, in one preferred embodiment, the rotation limiting member 314 is a movable limiting pin provided on the supporting portion 110 and protruding toward the rotating bracket 330; wherein the movable stopper pin can reciprocate in the axial direction of the first rotation shaft 311.

One of the arrangement modes of the movable stopper pin is illustrated: for example, the movable limiting pin is set as a telescopic spring pin, and the first rotating shaft 311 and the rotating bracket 330 are not in limiting clamping connection with the limiting hole 331 within the first rotating angle range, when the first rotating shaft 311 and the rotating bracket 330 rotate to the first rotating angle, the end part of the spring pin is matched with the kidney-shaped hole-shaped limiting hole 331 and is clamped with the limiting hole 331, so that the rotating bracket 330 is limited to rotate, and the first rotating shaft 311 is also limited to rotate. As shown in fig. 2, for example, the movable limiting pin in this embodiment is provided with two half parts sleeved with each other, and a spring is disposed in the middle, where one part can reciprocate axially relative to the other part, and when the first rotation shaft rotates by the first rotation angle and then is clamped with the limiting hole to limit, it is understood that this embodiment only lists two arrangement modes of the movable limiting pin, and those skilled in the art can also set movable limiting pins with other structures, which is not limited only in this embodiment. With this structural design, the rotation limiting member 314 is configured as a movable limiting pin, and when the rotation bracket 330 rotates from the initial position to the first rotation angle with respect to the supporting portion 110 along with the first rotation shaft 311, the movable limiting pin extends out and is clamped with the limiting hole 331, thereby limiting the rotation bracket 330 and the first rotation shaft 311.

The second shaft assembly 320 of the twin shaft rotation mechanism will be described in detail as follows:

In the dual-spindle rotating mechanism disclosed in the embodiment of the present invention, referring to fig. 2, the second spindle assembly 320 further includes a connecting bracket 322, the connecting bracket 322 is disposed between the rotating body 200 and the rotating bracket 330, one end of the second spindle 321 penetrates through the rotating bracket 330, and the other end rotatably penetrates through the connecting bracket 322 and is disposed on the rotating body 200. One side of the connection bracket 322 is fixedly connected to the rotary body 200, and the other side abuts against a side wall of the rotary bracket 330. Still referring to fig. 2, the second shaft 321 is also provided with a plurality of bushings 324, and the plurality of bushings 324 are respectively sleeved on the outer wall portion of the second shaft 321 and located at corresponding positions of the connecting bracket 322 and the locking component 323, and 3 bushings are provided in fig. 2 of the schematic diagram of the dual-shaft rotating mechanism disclosed in the embodiment, which can be actually adjusted according to requirements by a person skilled in the art.

With the above-described structure, the second rotating shaft 321, the connecting bracket 322, and the rotating body 200 can rotate relative to the rotating bracket 330, and the connecting bracket 322 and the rotating body 200 can rotate relative to the second rotating shaft 321, and after the first rotating shaft 311 rotates from the initial position to the first rotation angle relative to the supporting portion 110 and is locked by the rotation limiting member 314, the connecting bracket 322 and the rotating body 200 can rotate about the second rotating shaft 321.

Further, a locking component 323 is further disposed on a side of the connecting bracket 322 near the rotating body 200, and referring to fig. 4, the locking component 323 is specifically disclosed and described, and the locking component 323 is used for locking the second rotating shaft 321; the locking assembly 323 includes a cable 3231, a cable cam 3232, and a tension spring 3233 in sequential driving connection.

The cable cam 3232 is rotatably disposed at a position of the connecting bracket 322 near the side of the rotating body 200 and near the second rotating shaft 321, a cable 3231 connecting end 431 for connecting with the cable 3231 is disposed on the cable cam 3232, a tension spring 3233 is disposed between the cable cam 3232 and the connecting bracket 322, one end is fixed on the cable cam 3232, and the other end is fixed on the connecting bracket 322. And, the cable cam 3232 is provided with spacing protruding 3234 near the one end of second pivot 321, is provided with the spacing draw-in groove 3235 with spacing protruding 3234 adaptation on the second pivot 321. Also, referring to fig. 2, a counter bore is provided at a side of the connection bracket 322 adjacent to the rotating bracket 330 in the present embodiment, and a locking assembly 323 is detachably and fixedly provided at a side of the connection bracket 322 adjacent to the rotating body 200 by a nut 325.

With the adoption of the design of the structure, the locking component 323 is arranged to lock the second rotating shaft 321, the second rotating shaft 321 is in limiting clamping connection with the limiting protrusion 3234 on the stay rope cam 3232 and the limiting clamping groove 3235 on the second rotating shaft 321 before rotating, at this time, the second rotating shaft 321 is locked, and after the stay rope 3231 is pulled to separate the limiting protrusion 3234 from the limiting clamping groove 3235, the second rotating shaft 321 can rotate, and at this time, the rotating body 200 can also rotate.

It should be understood that the locking assembly 323 is mainly used for controlling the second rotating shaft 321 to rotate or relatively lock, so the locking assembly 323 may be configured as a locking mechanism with other structures, for example, a gear locking mechanism, etc., which is not limited in this embodiment.

In summary, the present embodiment discloses a dual-axis rotating mechanism and a seat assembly with the same, the dual-axis rotating mechanism includes a fixed base 100, a rotating body 200, a first axis component 310, a second axis component 320 and a rotating bracket 330, wherein the second axis 321 is far away from the fixed base 100 relative to the first axis 311, by setting such a structure, the first axis component 310 rotates first in the rotating process, and then drives the second axis component 320, the rotating bracket 330 and the rotating body 200 to rotate forward, so that the rotation center of the second axis component 320 is displaced forward, and when the rotating body 200 starts to turn around the second axis component 320, the rotation center of the rotating body 200 is far forward compared with the initial state, and interference with other objects can not occur during the rotation.

Further, the working mode of the dual spindle rotation mechanism disclosed in this embodiment will be briefly described:

The double-shaft rotating mechanism is characterized in that the first shaft 311 and the second shaft 321 are not rotated in an initial state, the rotating body 200 is relatively fixed relative to the fixed base 100, an elastic reset member 312 (coil spring) on the first shaft 311 is in a compressed state in the initial state, the coil spring provides a rotating restoring force for the first shaft 311, when the rotating body 200 needs to be rotated, the coil spring starts to release and drives the first shaft 311 to rotate through the rotating restoring force, the first shaft 311 drives the rotating body 200, the second shaft assembly 320 and the rotating support 330 to rotate forwards, after the first shaft 311 rotates by a first rotating angle, the first shaft 311 is clamped with a limiting hole 331 on the rotating support 330, the first shaft 311 is limited to continue to rotate, the second shaft 321 rotates forwards along with the rotating support 330 and the center of the shaft, and at the moment, by pulling the rotating body 200 to rotate relative to the second shaft 321, namely the double-shaft rotating mechanism disclosed by the application enables the actual shaft 311 and the second shaft 321 to rotate forward when the rotating body 200 rotates, the actual shaft 321 moves forwards, and interference between the rotating body 200 and the rotating body 200 is prevented.

Example 2

The implementation of the embodiment also discloses an automobile seat assembly, comprising the double-rotating-shaft rotating mechanism of any one of the embodiment 1; the seat base 500 of the seat assembly is fixed to the vehicle frame as the fixed base 100, and the seatback 400 is provided as the rotating body 200 with one end rotatably provided on the seat base 500. Wherein the rotating portion 300 is disposed between the seat base 500 and the seat back 400. It will be appreciated that the dual spindle rotation mechanism replaces the action of the seat spindle when disposed on an automotive seat, and depending upon the nature of the dual spindle rotation mechanism, the actual spindle center will move forward when the dual spindle rotation mechanism is flipped forward, so that the bottom or back of the seat will not interfere with other parts.

More particularly, referring to fig. 5 and 12, a car seat assembly provided with a dual spindle swivel mechanism can be flipped relative to a car frame without impacting or interfering with other structures of the vehicle during the flipping process.

Still further, referring to fig. 5, the seat assembly disclosed in the embodiment of the present invention further includes:

The unlocking button 410, the unlocking button 410 is disposed at an end of the seat back 400 remote from the seat base 500.

A seat back lock 420, the seat back lock 420 being provided on the outside of the seat back 400, the seat back lock 420 being detachably locked with the vehicle body.

The locking cable 430, the locking cable 430 includes a connection end 431 and two unlocking ends 432, the connection end 431 is connected with the unlocking buckle 410, one of the two unlocking ends 432 is connected with the seat back lock 420, and the other is connected with the cable 3231 in the locking assembly 323. Wherein, when the seat back lock 420 is locked with the vehicle body, the elastic restoring member 312 is in a compressed state, and the locking assembly 323 is locked with the second rotating shaft 321.

In this embodiment, the coil spring is in a compressed state when the seat is fixed, and has an elastic restoring force to the first rotation shaft 311, and the seat is locked by the seat back lock 420 when the seat is fixed, and the first rotation shaft 311 and the coil spring are simultaneously locked, and when the seat back lock 420 is opened, the coil spring drives the first rotation shaft 311 and the seat to rotate by a first rotation angle.

With this structural design, when the seat needs to be reclined, the unlocking button 410 is pulled to unlock, and because the locking cable 430 of the present application includes a connecting end 431 and two unlocking ends 432, the unlocking button 410 is pulled to unlock the seat back lock 420 and the locking component 323 on one side of the second rotating shaft 321 at the same time, at this time, the seat releases the locking, firstly, the elastic reset member 312 drives the first rotating shaft 311 to rotate, the first rotating shaft 311 drives the seat and the second rotating shaft component 320 and the rotating bracket 330 to rotate by a first rotation angle, the first rotating shaft 311 is limited and fixed by the rotation limiting member 314 to be non-rotatable, and after rotating by the first rotation angle, the second rotating shaft 321 moves forward for a part of displacement relative to the first rotating shaft 311, at this time, the seat can rotate relative to the second rotating shaft 321, at this time, the seat can be reclined by manually pressing the seat, and the seat can not interfere with other parts.

The implementation of this example also discloses a seat assembly, see fig. 5 and 13, the seat base 500 comprising a seat cushion, and an intermediate securing member securing the seat cushion to the vehicle frame; the intermediate fixing member includes an integrally formed connection flange 120 and a support frame as the support portion 110.

The connection flange 120 is located at the bottom of the support frame and is arranged along the horizontal direction, a plurality of fixed connection holes are formed in the connection flange 120, and the connection flange 120 is detachably and fixedly connected with the automobile frame. The first shaft 311 is rotatably disposed on the support frame.

By adopting the design of the structure, the seat cushion is fixed on the automobile frame through the middle fixing member, and the connecting flange 120 is arranged, so that the connection between the seat cushion and the automobile frame is more stable.

In summary, in the seat assembly disclosed by the application, as shown in fig. 12 to 14, when the double-rotating-shaft rotating mechanism is applied to a seat, the rotating body 200 is the seat, and when the seat needs to be put down, the center of the rotating shaft when the seat rotates and is put down is moved forward through the double-rotating-shaft rotating mechanism, and the lower end of the seat backrest 400 cannot interfere with a trunk, a vehicle body and the like, so that the seat can be put down in a pure flat state, and the seat has the advantages of simple structure, convenience in use and wide application range.

Further, the unlocking and releasing of the seat assembly and the back rest reset in the present embodiment will be explained:

Stage one: the backrest is unlocked. Referring to fig. 6, in an initial state, the seat body is inclined horizontally at a certain angle and is fixedly arranged, when the backrest is required to be unlocked, referring to fig. 7, the unlocking buckle 410 is pulled, the unlocking buckle 410 drives the locking cable 430 to move upwards, two unlocking ends 432 of the locking cable 430 respectively pull the seat backrest lock 420 and the locking component 323 to unlock, and at the moment, the first rotating shaft 311 and the second rotating shaft 321 are both unlocked and can rotate;

Stage two: the first rotation shaft 311 operates. Referring to fig. 8, after the backrest is unlocked, the coil spring drives the first rotating shaft 311, the second rotating shaft 321 and the seat to turn forward by a first rotation angle, and further referring to fig. 9, in this embodiment, after the first rotating shaft 311, the second rotating shaft 321 and the seat turn forward by the first rotation angle, the rotation limiting member 314 (movable limiting pin) is in limiting clamping connection with the limiting hole 331 on the rotating bracket 330, and the first rotating shaft 311 is limited by the clamping connection and cannot rotate continuously, but the second rotating shaft 321 is in a rotatable state at this time;

Stage three: the second rotating shaft 321 operates. Referring to fig. 10 and 11, when the seat is pulled forward and turned over, the seat can be turned forward with the second rotating shaft 321 as the rotation center, because the second rotating shaft 321 can move forward relatively when the seat is turned forward in the second stage, the actual rotating shaft of the seat can move forward at this time, so that the tail of the seat cannot interfere with other components, and the seat back 400 can be put down in a flat state, for example, the seat is put down in a flat state after being turned forward by 85 °.

Stage four: the seat is turned over and reset. Pulling the seat so that the seat rotates in a clockwise direction, the locking assembly locks the second rotating shaft 321 first in the rotating process, then continues to push the seat back 400 backwards, locks the upper end of the back with the seat back lock 420, the coil spring is compressed again at this time, and the first rotating shaft 311 and the second rotating shaft 321 are both in the locked state.

It is intended that other advantages and effects of the present utility model, in addition to those described in the specific embodiments, be readily apparent to those skilled in the art from the present disclosure. While the description of the utility model will be described in connection with the preferred embodiments, it is not intended to limit the inventive features to the implementation. Rather, the purpose of the utility model described in connection with the embodiments is to cover other alternatives or modifications, which may be extended by the claims based on the utility model. The foregoing description contains many specifics, other embodiments, and examples of specific details for the purpose of providing a thorough understanding of the utility model. Furthermore, some specific details are omitted from the description in order to avoid obscuring the utility model. It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.

It should be noted that in this specification, like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present embodiment, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", "inner", "bottom", etc. are based on the azimuth or positional relationship shown in the drawings, or the azimuth or positional relationship in which the inventive product is conventionally put in use, are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and therefore should not be construed as limiting the present utility model.

The terms "first," "second," and the like are used merely to distinguish between descriptions and are not to be construed as indicating or implying relative importance.

In the description of the present embodiment, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present embodiment can be understood in a specific case by those of ordinary skill in the art.

While the utility model has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that the foregoing is a further detailed description of the utility model with reference to specific embodiments, and it is not intended to limit the practice of the utility model to those descriptions. Various changes in form and detail may be made therein by those skilled in the art, including a few simple inferences or alternatives, without departing from the spirit and scope of the present utility model.

Claims (10)

1. A dual spindle rotation mechanism, comprising: a fixed base, a rotating body rotatably provided on the fixed base, and a rotating portion provided between the fixed base and the rotating body; wherein the method comprises the steps of

The rotating part includes: the rotating bracket is arranged between the first rotating shaft assembly and the second rotating shaft assembly at intervals along the extending direction of the rotating body; and

The first rotating shaft assembly comprises a first rotating shaft rotatably arranged on the fixed base;

one end of the rotating bracket is arranged on the first rotating shaft and extends along the extending direction of the rotating body;

The second rotating shaft assembly comprises a second rotating shaft, one end of the second rotating shaft is arranged at the other end of the rotating bracket, and the other end of the second rotating shaft is rotatably arranged on the rotating body; and

The second rotating shaft is far away from the fixed base relative to the first rotating shaft.

2. The twin spindle rotation mechanism as defined in claim 1, wherein the stationary base includes a support portion extending toward the rotating body, the first spindle rotatably penetrating into a first shaft hole provided in the support portion; and

The first shaft assembly further includes a resilient return member; the elastic reset member is arranged at one end of the first rotating shaft, which extends out of the supporting part and is far away from the rotating support, one end of the elastic reset member is fixedly connected with the supporting part, the other end of the elastic reset member is fixedly connected with the end part of the first rotating shaft, and the elastic reset member applies rotary restoring force to the first rotating shaft.

3. The twin spindle rotation mechanism as defined in claim 2, wherein the resilient return member is a wrap spring having an outer ring end fixedly connected to the support portion and an inner ring end fixedly connected to an end of the first spindle to provide a rotational return force to the first spindle; and

The end part of the first rotating shaft far away from the rotating support is also provided with a retaining ring in a clamping manner, and the coil spring is sleeved at the end part of the first rotating shaft through the retaining ring.

4. The twin spindle rotation mechanism as defined in claim 3, wherein the first spindle assembly further comprises a rotation limiting member fixedly disposed on the support portion, spaced apart from the first spindle in a radial direction of the first spindle, and extending toward the rotating bracket; and

The rotating support is provided with a limiting hole matched with the rotating limiting member, and when the rotating support rotates from an initial position to a first rotation angle along with the first rotating shaft relative to the supporting part, the rotating limiting member is in limiting clamping fit with the limiting hole; wherein the method comprises the steps of

When seen along the axial direction of the first rotating shaft, the limiting hole is in a waist-shaped hole shape; and the first rotation angle is in the range of 0 to 20 degrees.

5. The twin spindle rotation mechanism as defined in claim 4, wherein the rotation limiting member is a movable limiting pin provided to the support portion and extending toward the rotating bracket; wherein the method comprises the steps of

The movable limiting pin can reciprocate along the axial direction of the first rotating shaft.

6. The twin spindle rotation mechanism as defined in claim 1, wherein the second spindle assembly further comprises a connection bracket disposed between the rotating body and the rotating bracket, one end of the second spindle passing through the rotating bracket, and the other end rotatably passing through the connection bracket and being disposed on the rotating body; and

One side part of the connecting bracket is fixedly connected with the rotating body, and the other side part of the connecting bracket is abutted against the side wall of the rotating bracket.

7. The dual spindle rotation mechanism according to claim 6, wherein a locking assembly is further provided on a side of the connection bracket adjacent to the rotating body, the locking assembly being for locking the second spindle; the locking component comprises a guy cable, a guy cable cam and a tension spring which are sequentially connected in a transmission way; wherein the method comprises the steps of

The cable cam is rotatably arranged at a position, close to one side of the rotating body, of the connecting support and close to the second rotating shaft, a cable connecting end used for being connected with the cable is arranged on the cable cam, the tension spring is arranged between the cable cam and the connecting support, one end of the tension spring is fixed on the cable cam, and the other end of the tension spring is fixed on the connecting support; and

The cable cam is close to the one end of second pivot is provided with spacing arch, be provided with in the second pivot with spacing draw-in groove of spacing protruding adaptation.

8. An automotive seat assembly comprising a twin spindle swivel mechanism according to any one of claims 1 to 7; the seat base of the seat assembly is used as a fixed base to be fixed on an automobile frame, the seat backrest is used as a rotating body, and one end of the seat backrest is rotatably arranged on the seat base; wherein the method comprises the steps of

The rotating portion is disposed between the seat base and the seat back.

9. The seat assembly of claim 8, further comprising:

The unlocking buckle is arranged at the end part of the seat backrest, which is far away from the seat base;

A seatback lock provided on an outer side of the seatback, the seatback lock being detachably locked to a vehicle body;

The locking inhaul cable comprises a connecting end and two unlocking ends, the connecting end is connected with the unlocking buckle, one of the two unlocking ends is connected with the seat backrest lock, and the other unlocking end is connected with the inhaul cable in the locking assembly; wherein the method comprises the steps of

When the seat back lock is locked with the vehicle body, the elastic restoring member is in a compressed state, and the locking assembly is in locking connection with the second rotating shaft.

10. The seat assembly of claim 9 wherein said seat base includes a seat cushion and an intermediate securing member securing said seat cushion to an automotive frame; the middle fixing member comprises an integrally formed connecting flanging and a supporting frame serving as a supporting part of the fixing base; and

The connecting flange is positioned at the bottom of the support frame and arranged along the horizontal direction, a plurality of fixed connecting holes are formed in the connecting flange, and the connecting flange is detachably and fixedly connected with the automobile frame; and

The first rotating shaft is rotatably arranged on the supporting frame in a penetrating mode.