CN211647929U - Rolling curtain of fast vertical falling curtain cloth - Google Patents

Abstract

The utility model discloses a roll up curtain of curtain cloth falls fast to hang down contains: a linkage assembly and a control device, the control device comprising: a winding mechanism, an electromagnetic valve, a pushing mechanism, a front cap and a damper; the electromagnetic valve is electrified to drive the pushing mechanism to push the front cap, so that the front cap is separated from the clamping part, the winding mechanism is not influenced by the damping resistance, and a curtain cloth can be quickly put down by means of gravity without being influenced by the damping resistance.

Description

Rolling curtain of fast vertical falling curtain cloth

Technical Field

The utility model relates to a rolling blind, in particular to a rolling blind which can quickly drop curtain cloth.

Background

Roller blinds, such as rollable blinds, curtains or door curtains and the like, used inside buildings, may be used to block vision from outside the building, preventing occupants inside the building from being discovered or peeped.

The curtain cloth of the rolling curtain is hung down by a method such as Chinese Taiwan patent publication No. M318394, which comprises a shell, a bead chain gear, a clutch, a flat wire spring, a sleeve, a worm wheel and a worm, wherein the circumferential surface of the right end of the bead chain gear extends outwards to form a plurality of fan-shaped ring blades, the left end of the bead chain gear forms a shaft sleeve, the clutch is arranged in the shaft sleeve, two symmetrical salient points are arranged on the inner wall of the shaft sleeve at the left end of the bead chain gear and are just matched with the rotating thread of the outer wall of the clutch, so that the salient points move at the thread, the flat wire spring is arranged on the inner diameter of the right end of the sleeve, the shaft core at the right end of the worm wheel positions and connects the devices, a gear-shaped lug boss at the top end of the clutch is correspondingly meshed with a lug boss at the tail end of the shaft core of the worm wheel, the worm is connected on a worm lining of the worm, the, the whole worm is combined and placed in the shaft seat groove in the shell, so that the worm wheel is meshed with the worm, the phenomenon of curtain unbalance caused by uneven force of pulling the bead wire by hand is avoided in the descending process, the curtain can automatically descend, and the bead wire does not need to be continuously pulled to descend.

However, in the aforementioned patent, when the curtain needs to be put down quickly, the curtain is decelerated due to the engagement of the worm wheel and the worm, and the curtain cannot be put down quickly.

SUMMERY OF THE UTILITY MODEL

The utility model provides a roll up curtain of curtain cloth falls fast to hang down for a curtain cloth falls perpendicularly, borrow by the solenoid valve circular telegram after, this solenoid valve drives should push away to the mechanism and pushes away to this front cap, makes this front cap and this block portion separation, and this roll-up mechanism does not receive this damped resistance, drives this outer tube rotation and falls this curtain cloth, and can make the curtain cloth put down fast by gravity.

A curtain of a fast vertical falling curtain cloth is used for vertical falling of a curtain cloth, and the curtain of the fast vertical falling curtain cloth comprises: a linkage assembly comprising an outer tube connected to the curtain cloth; and a control device, set up in one end of this outer tube and block in this outer tube, this control device contains: a winding mechanism having a fastening part; the electromagnetic valve is arranged in the winding mechanism; the pushing and abutting mechanism is movably arranged on the rolling mechanism and is connected with the electromagnetic valve; the front cap is clamped at the clamping part of the furling mechanism and is connected with the pushing mechanism; the damping is arranged in the furling mechanism; after the electromagnetic valve is electrified, the electromagnetic valve drives the pushing mechanism to push the front cap, so that the front cap is separated from the clamping part, and the winding mechanism does not receive the resistance of the damping and drives the outer tube to rotate to vertically drop the curtain cloth.

Further, the winding mechanism comprises a winding wheel, an inner cylinder and an outer cylinder, the winding wheel is provided with an action part connected with the inner cylinder, the clamping part comprises a first clamping part arranged on the inner cylinder and a second clamping part arranged on the outer cylinder, and the inner cylinder and the outer cylinder are detachably clamped with the front cap through the first clamping part and the second clamping part respectively.

Furthermore, there is a fixing base, the damping is a first elastic member, the first elastic member is tightly sleeved on the fixing base, the first elastic member has a protruding part, the acting part of the winding wheel is an extending sheet body, the extending sheet body extends into the inner cylinder, the inner cylinder has a blocking part corresponding to the extending sheet body, an operating space is arranged between the blocking part and the extending sheet body, the protruding part of the first elastic member extends into the operating space, the protruding part of the first elastic member is pushed against the first elastic member through the extending sheet body, and the first elastic member is loosened from the fixing base.

The first clamping part of the inner cylinder is a salient point which can be clamped in a clamping groove of the front cap in a detachable way.

The second engaging portion of the outer barrel is a plurality of protrusions detachably engaged between the engaging blocks of the front cap.

Furthermore, the pushing and supporting mechanism comprises a shaft element, a second elastic element and a screw element, the second elastic element is arranged on the shaft element, the shaft element is connected with the electromagnetic valve, the shaft element and the front cap are locked by the screw element, and the fixed seat is provided with a retaining wall corresponding to the second elastic element; when the electromagnetic valve is electrified, the shaft piece is controlled to extend out, so that the front cap is pushed by the shaft piece to be separated from the furling mechanism, and the second elastic piece is propped against the retaining wall to be compressed and store elastic potential energy; after the electromagnetic valve is powered off, the second elastic piece releases the elastic potential energy to drive the shaft piece to reset, so that the front cap is clamped with the winding mechanism.

Furthermore, a fixed seat is provided, and the electromagnetic valve is arranged in the fixed seat.

Furthermore, there is an outer pole to set up in this outer tube, a stop gear sets up on this outer pole and block in this outer tube, this stop gear contains the cover and establishes an inner tube in this outer pole one end, a slide and a spacing seat of swivelling movement on this inner tube, this slide has a first screw thread portion, this inner tube has a second screw thread portion, this slide is by this first screw thread portion mesh in this second screw thread portion, this outer tube has a spacing in the spacing portion of this slide, this outer tube rotates and when hanging down this curtain cloth, drive this slide and join in marriage this second screw thread portion and swivelling movement on this inner tube along this spacing, when this slide pushes away in this spacing seat, this slide drives this outer tube and stops rotatoryly.

Furthermore, the sliding seat is a first sliding seat, the limiting seat comprises a second sliding seat and a buffering elastic part, the buffering elastic part is arranged between the inner pipe and the second sliding seat, and when the first sliding seat is pushed against the second sliding seat, the buffering elastic part stores a buffering elastic potential energy to stop the second sliding seat from rotating; when the first sliding seat is far away from the second sliding seat, the buffering elastic piece releases the buffering elastic potential energy to enable the second sliding seat to reset.

Furthermore, the sliding seat is provided with a first combining part, the limiting seat is provided with a second combining part, and when the sliding seat pushes against the limiting seat, the first combining part is combined with the second combining part.

Furthermore, a tail seat is arranged at the other end of the outer tube, an inner rod is arranged in the tail seat, and the inner rod is connected with the outer rod; when an operating part of the inner rod is operated to rotate the inner rod, the inner rod drives the outer rod to rotate relative to the outer tube, so that the sliding seat rotates on the inner tube to adjust a distance between the sliding seat and the limiting seat.

Furthermore, the inner rod comprises a first combining piece, a second combining piece is arranged on the tailstock, and a resetting elastic piece is sleeved on the inner rod; the first combining piece of the inner rod is separated from the second combining piece of the tailstock by operating the operating part, at the moment, the reset elastic piece stores reset elastic potential energy, and the inner rod drives the outer rod to rotate relative to the outer pipe; when the operation part is stopped, the reset elastic piece releases the reset elastic potential energy to operate the inner rod to reset, so that the first combining piece of the inner rod is embedded and clamped in the second combining piece.

Wherein, the second conjunction is combined with the tailstock by a C-shaped buckle.

Furthermore, a first sleeve seat is arranged in the outer tube and clamped with the outer tube, a tailstock is arranged at the other end of the outer tube, an adjusting piece and a second sleeve seat are arranged on the tailstock, a braking elastic piece is tightly sleeved on the tailstock, and a power-assisted elastic piece is connected with the first sleeve seat and the second sleeve seat; rotating the adjusting member, pushing a brake protruding portion of the brake elastic member by the adjusting member to release the brake elastic member from the tailstock, and driving the second socket to rotate relative to the first socket by the adjusting member to enable the power-assisted elastic member to store a power-assisted elastic potential energy; when the adjusting member stops rotating, the second sleeve seat pushes against the brake protrusion, and the brake elastic member is tightly sleeved on the tail seat, so that the power-assisted elastic member maintains the power-assisted elastic potential.

According to the technical characteristics, the following effects can be achieved:

1. the clamping part of the front cap and the winding mechanism is separated after the electromagnetic valve is electrified, so that the curtain cloth of the roller shutter is not influenced by the resistance of the first elastic piece, and can be quickly put down by means of gravity.

2. When the curtain cloth needs to be pulled down and hidden emergently, a user only needs to electrify the electromagnetic valve to control the front cap to be separated from the clamping part of the rolling mechanism, the curtain cloth can be put down, the door and window where the curtain is located does not need to be close to and the rolling wheels are operated personally, and the risk of being discovered is reduced.

3. No matter the curtain cloth is put down by using the winding wheel or the curtain cloth is wound up, the extending sheet body can be used for pushing the protruding part of the first elastic piece, so that the first elastic piece is loosened from the fixed seat and can rotate relative to the fixed seat, and the winding mechanism can rotate to wind and wind the curtain cloth.

4. The salient points of the inner cylinder and the salient points of the outer cylinder are respectively and detachably clamped in the clamping grooves and between the clamping blocks of the front cap, and after the cord fabric is pulled by the winding wheel and the inner cylinder is driven by the winding wheel, the outer cylinder and the front cap can be linked with the inner cylinder to drive the cord fabric to be wound and unwound.

5. When the curtain cloth is pulled by the winding wheel, the blocking part of the inner cylinder pushes against the protruding part of the first elastic part, so that the first elastic part is tightly sleeved on the fixed seat again and cannot rotate relative to the fixed seat, and the curtain cloth can also be positioned at any height and cannot fall off.

6. After the curtain cloth is put down, the curtain cloth can be limited by the limiting mechanism, and the curtain cloth is prevented from falling excessively.

7. By means of the buffering elastic piece, the impact force generated when the curtain cloth is limited is relieved, and the limiting mechanism is prevented from being damaged by overlarge impact force.

8. The first combining part of the sliding seat and the second combining part of the limiting seat can really maintain the limiting state, and meanwhile, the buffering elastic piece prevents the sliding seat from rotating in the original position and being incapable of really limiting.

9. The distance between the sliding seat and the limiting seat can be adjusted by operating the operating part of the inner rod through the tool, so that the curtain cloth is limited at the required height.

10. The reset elastic piece can fix the inner rod by matching the first combining piece and the second combining piece, so that the inner rod can not rotate any more, and the adjusted distance can be fixed.

11. The gear can adjust the tightness of the power-assisted elastic piece and can be fixed by the brake elastic piece, so that a user can conveniently adjust the proper elasticity of the power-assisted elastic piece according to the weight of the curtain cloth.

Drawings

Fig. 1 is a perspective assembly view of a rolling screen of a quick vertical drop curtain.

FIG. 2 is a perspective cross-sectional view of a roller shade of the quick-dip curtain.

Fig. 3 is an exploded perspective view of a portion of the control device.

Fig. 4 is a perspective assembly view of a portion of the control device.

Fig. 5 is a cross-sectional view of fig. 4.

Fig. 6 is a cross-sectional view of fig. 4.

Fig. 7 is a cross-sectional view of fig. 4.

Fig. 8 is an exploded perspective view of a portion of the spacing mechanism.

Fig. 9 is a perspective assembly view of the stop mechanism portion.

Fig. 10 is an exploded perspective view of a portion of the adjustment mechanism.

Fig. 11 is a perspective assembly view of the adjustment mechanism portion.

Fig. 12 is a first sectional view of the rolling screen of the fast vertical drop curtain, which shows that after the rolling wheel rotates clockwise, the extension sheet drives the inner cylinder to rotate clockwise.

Fig. 13 is a second sectional view of the rolling screen of the fast vertical drop curtain, which shows that after the rolling wheel rotates counterclockwise, the extension sheet drives the inner cylinder to rotate counterclockwise.

Fig. 14 is a third sectional view of the curtain of the quick vertical drop curtain, which shows that the electromagnetic valve is electrified to separate the front cap from the winding mechanism.

Fig. 15 is a cross-sectional operation view of the rolling shutter of the quick vertical drop curtain, which shows a state where the first slide carriage is not moved.

FIG. 16 is a cross-sectional view of a roller shade of a quick vertical drop curtain, showing the first slide abutting the second slide.

Fig. 17 is a sixth sectional view of the rolling shutter of the quick vertical drop curtain, which illustrates the state of the buffering elastic member when the first slide carriage is not pushing against the second slide carriage.

Fig. 18 is a cross-sectional view of a rolling shutter of the quick vertical drop curtain, which shows a state of the buffering elastic member after the first sliding seat pushes against the second sliding seat.

Fig. 19 is an eighth sectional operation view of the roll screen of the quick-drop curtain, which shows a state where the operation portion of the inner lever is not operated.

Fig. 20 is a ninth sectional view of the rolling shutter of the quick vertical drop curtain, which shows that the distance between the first slide and the second slide is changed after the operation part of the inner lever is operated.

Fig. 21 is a cross-sectional view showing the operation of the roller blind of the quick-drop curtain cloth, showing the state of the assist elastic member when the gear is not rotated.

FIG. 22 is a cross-sectional view showing the first operation of the roller shade of the quick vertical drop curtain, showing the state of the brake spring when the gear is not rotated.

Fig. 23 is a cross-sectional view showing a twelfth operation of the roll screen of the quick vertical drop curtain fabric, showing a state of the assist elastic member after the gear is rotated.

FIG. 24 is a sectional view of the curtain of the fast vertical drop curtain cloth, showing the state of braking the elastic member after rotating the gear.

[ notation ] to show

1 control device 11 furling mechanism

1111 extension sheet body of 111 rolling wheel

112 inner cylinder 1121 salient point

1122 stopper 113 outer cylinder

1131 operating space of bump 114

12 solenoid valve 13 first elastic member

131 projection 14 pushing mechanism

141 shaft 142 second elastic member

143 screw 15 front cap

151 engaging groove 152 engaging block

16 fixed seat 161 retaining wall

2 linkage assembly 21 outer tube

211 limiting strip 22 outer rod

23 limiting mechanism 231 inner tube

2311 fixing part of second thread part 2312

232 limiting seat 2321 second sliding seat

2322 and a second joint part of the damping elastic member 2323

233 first slide 2331 stop

2332A first combining portion 2333A first threaded portion

24 inner rod of adjusting mechanism 241

2411 operating part 2412 first jointing part

242 first set 243 of force-aid elastic elements

244 return spring 245 second nest

2451 second cover stop 246 braking elastic member

2461 brake projection 247 gear

2471 Gear extension 3 tailstock

31 second combined part A curtain cloth

And B, tool.

Detailed Description

By combining the above technical features, the main function of the rolling curtain of the fast vertical falling curtain fabric of the present invention will be clearly shown in the following embodiments.

Referring to fig. 1 and 2, the rolling curtain of the fast vertical drop curtain fabric is used for vertically dropping a curtain fabric a, the rolling curtain of the fast vertical drop curtain fabric comprises a control device 1, a linkage assembly 2 and a tailstock 3, the control device 1 is arranged at one end of the linkage assembly 2 and is clamped with the linkage assembly 2, and the other end of the linkage assembly 2 is arranged in the tailstock 3. More specifically, the interlocking unit 2 includes: an outer tube 21, an outer rod 22, a limiting mechanism 23 and an adjusting mechanism 24, wherein the outer tube 21 is connected to the curtain cloth A, and the control device 1 is clamped with the outer tube 21. The outer rod 22 is disposed in the outer tube 21, and has the limit mechanism 23 at one end and the adjustment mechanism 24 at the other end. The limiting mechanism 23 is disposed on the outer rod 22 and engaged with the outer tube 21. The adjusting mechanism 24 is disposed in the tailstock 3.

Referring to fig. 3 and 4, the control device 1 mainly includes: a roll-up mechanism 11, a solenoid valve 12 and a damping, in the embodiment of the present invention, the damping is a first elastic component 13, and the control device 1 further comprises: a pushing mechanism 14, a front cap 15 and a fixing base 16.

Referring to fig. 5 and 6, the winding mechanism 11 is disposed on the fixing base 16, the winding mechanism 11 includes a winding wheel 111, an inner cylinder 112 and an outer cylinder 113, the winding wheel 111 has an active portion connected to the inner cylinder 112, and in the embodiment of the present invention, the active portion of the winding wheel 111 is an extending sheet 1111. The extending sheet 1111 extends into the inner cylinder 112, the inner cylinder 112 has a blocking portion 1122 corresponding to the extending sheet 1111, the blocking portion 1122 is formed by recessing a portion of the side wall of the inner cylinder 112 toward the center of the inner cylinder 112, an operation space 114 is formed between the blocking portion 1122 and the extending sheet 1111, the first elastic member 13 is tightly sleeved on the fixing base 16, the first elastic member 13 has a protruding portion 131, and the protruding portion 131 of the first elastic member 13 extends into the operation space 114.

Referring to fig. 5 and 7, the winding mechanism 11 has an engaging portion, the engaging portion includes a first engaging portion disposed on the inner cylinder 112 and a second engaging portion disposed on the outer cylinder 113, the first engaging portion is a protruding point 1121, the second engaging portion is a plurality of protruding blocks 1131 arranged at intervals, the front cap 15 includes a cross-shaped engaging groove 151 and a plurality of engaging blocks 152 arranged at intervals, the protruding point 1121 of the inner cylinder 112 is detachably engaged in the engaging groove 151 of the front cap 15, the plurality of protruding blocks 1131 of the outer cylinder 113 is detachably engaged between the plurality of engaging blocks 152 of the front cap 15, and thereby, the inner cylinder 112 and the outer cylinder 113 detachably engage the front cap 15. The electromagnetic valve 12 is disposed in the winding mechanism 11, and more specifically, the electromagnetic valve 12 is disposed in the fixing base 16, and both the electromagnetic valve 12 and the fixing base 16 are accommodated in the inner cylinder 112 and the outer cylinder 113. The pushing mechanism 14 is movably disposed on the retracting mechanism 11 and connected to the solenoid valve 12, the pushing mechanism 14 includes a shaft 141, a second elastic element 142 and a screw 143, the second elastic element 142 is disposed on the shaft 141, the shaft 141 is connected to the solenoid valve 12, the shaft 141 of the pushing mechanism 14 is locked with the front cap 15 by the screw 143, so that the front cap 15 is connected to the shaft 141 of the pushing mechanism 14. The fixing base 16 has a retaining wall 161 corresponding to the second elastic member 142, and the retaining wall 161 is an annular region formed by the sidewall of the fixing base 16 recessed toward the center of the fixing base 16.

Referring to fig. 8 and 9, the outer tube 21 includes a limit bar 211, and the limit mechanism 23 includes an inner tube 231, a slide seat and a limit seat 232, in the embodiment of the present invention, the slide seat is a first slide seat 233. The inner tube 231 is sleeved on one end of the outer rod 22, the inner tube 231 is a square tube, the inner tube 231 is locked with the outer rod 22 which is also a square tube by a fixing member, and the fixing member can be a bolt or a screw, etc., so that the inner tube 231 and the outer rod 22 cannot rotate or move relatively. The first slider 233 moves rotationally on the inner tube 231. The first sliding seat 233 has a limiting portion 2331, a first combining portion 2332 and a first screw portion 2333, the limiting bar 211 of the outer tube 21 is located in the limiting portion 2331, the inner tube 231 has a second screw portion 2311 and a fixing portion 2312, and the first sliding seat 233 is engaged with the second screw portion 2311 of the inner tube 231 by the first screw portion 2333. The limiting seat 232 includes a second sliding seat 2321, a buffering elastic member 2322 and a second combining portion 2323, the buffering elastic member 2322 is disposed between the inner tube 231 and the second sliding seat 2321, one end of the buffering elastic member 2322 is fixedly connected to the second sliding seat 2321, the other end of the buffering elastic member 2322 is fixedly connected to the fixing portion 2312 of the inner tube 231, and the second combining portion 2323 is disposed on the second sliding seat 2321. The first combining portion 2332 and the second combining portion 2323 are bumps.

Referring to fig. 10 and 11, the adjusting mechanism 24 includes an adjusting member, an inner rod 241, a first sleeve 242, an assisting elastic member 243, a restoring elastic member 244, a second sleeve 245, and a braking elastic member 246, wherein the adjusting member is a gear 247. The inner rod 241 is fixed to the outer rod 22, and an operation portion 2411 is disposed at an end of the inner rod 241 away from the outer rod 22, the inner rod 241 includes a first connection member 2412, the first connection member 2412 is correspondingly engaged with a second connection member 31, the second connection member 31 is connected to the tail seat 3 by a C-shaped buckle 32, in the embodiment of the present invention, the operation portion 2411 is disposed on the first connection member 2412. The second socket 245 is disposed on the tailstock 3, the first socket 242 is disposed in the outer tube 21 and engaged with the outer tube 21[ the outer tube 21 please match fig. 9], and the assisting elastic member 243 connects the first socket 242 and the second socket 245. The return elastic member 244 is connected to and sleeved on the inner rod 241. The brake elastic member 246 is tightly fitted on the tailstock 3.

Referring to fig. 12 and 13 and fig. 3, when the winding wheel 111 is rotated, the extending sheet 1111 of the winding wheel 111 pushes the protruding portion 131 of the first elastic member 13, so that the first elastic member 13 is released from the fixing base 16. Whether the winding wheel 111 is used to put down the curtain a or to wind up the curtain a [ please refer to fig. 2], the extension piece 1111 can push the protrusion 131 of the first elastic member 13 in different directions, clockwise or counterclockwise. For example, when the winding wheel 111 rotates clockwise to put down the curtain a, the extension piece 1111 pushes the protrusion 131 of the first elastic member 13 clockwise, and the protrusion 131 of the first elastic member 13 moves clockwise in the operating space 114, so that the first elastic member 13 is released from the fixing seat 16 and can rotate relative to the fixing seat 16. When the protrusion 131 of the first elastic element 13 rotates to abut against the blocking portion 1122 of the inner cylinder 112, if the winding wheel 111 is still operated in the clockwise direction, the extending sheet 1111 will continuously push against the protrusion 131, so that the inner cylinder 112 is also driven to rotate due to the contact between the blocking portion 1122 and the protrusion 131 or the extending sheet 1111. And because the salient points 1121 of the inner cylinder 112 and the protrusions 1131 of the outer cylinder 113 are detachably engaged with the engaging slots 151 of the front cap 15 and the engaging blocks 152, respectively, after the cord fabric a is pulled by the winding wheel 111 and the inner cylinder 112 is driven by the winding wheel 111, the outer cylinder 113 and the front cap 15 can be linked with the inner cylinder 112 to drive the cord fabric a to be laid down. Similarly, when the curtain cloth a needs to be retracted, the winding wheel 111 is rotated counterclockwise instead, and the extension sheet 1111 drives the inner cylinder 112 to rotate counterclockwise, thereby driving the curtain cloth a to be retracted.

When the curtain cloth a is pulled by stopping using the winding wheel 111, for example, when the winding wheel 111 is rotated counterclockwise to retract the curtain cloth a, after the curtain cloth a is retracted and the winding wheel 111 is released, the outer cylinder 113 may drive the front cap 15 and the inner cylinder 112 to rotate clockwise due to the gravity of the curtain cloth a, however, after the inner cylinder 112 rotates clockwise, the blocking portion 1122 of the inner cylinder 112 pushes against the protruding portion 131 of the first elastic member 13, so that the first elastic member 13 is tightly sleeved on the fixing seat 16 again, the first elastic member 13 does not rotate relative to the fixing seat 16, the inner cylinder 112, the front cap 15 and the outer cylinder 113 also cannot rotate, and the curtain cloth a can be positioned and cannot fall down any more. This scenario is not depicted in the drawings, and is described only in text herein.

Referring to fig. 14 and fig. 2, after the electromagnetic valve 12 is powered on, the electromagnetic valve 12 controls the shaft 141 to extend and push the front cap 15, so that the front cap 15 is separated from the inner cylinder 112 and the outer cylinder 113, the winding mechanism 11 is free from the resistance of the first elastic element 13, and can rapidly put down the curtain cloth a by gravity, and the second elastic element 142 abuts against the retaining wall 161 to compress and store an elastic potential energy; after the electromagnetic valve 12 is powered off, since the front cap 15 and the shaft 141 are locked and connected by the screw 143, the second elastic member 142 releases the elastic potential energy and drives the shaft 141 to reset, so that the front cap 15 is engaged with the inner cylinder 112 and the outer cylinder 113 again.

Referring to fig. 15 and 16, and referring to fig. 2, when the outer tube 21 rotates to vertically drop the curtain fabric a, the outer tube 21 drives the first sliding seat 233 to rotate along the limiting bar 211 to cooperate with the second threaded portion 2311 of the inner tube 231 and move on the inner tube 231 toward the second sliding seat 2321, when the first sliding seat 233 pushes against the second sliding seat 2321, the first combining portion 2332 is combined with the second combining portion 2323, and the first sliding seat 233 is blocked by the second sliding seat 2321 and does not rotate on the inner tube 231 any more. Since the first slide seat 233 is no longer rotated, the outer tube 21 is not rotated, and the curtain a is not dropped and is restrained.

Referring to fig. 16 to 18, after the first combining portion 2332 of the first sliding seat 233 is combined with the second combining portion 2323 of the second sliding seat 2321, the first sliding seat 233 still drives the second sliding seat 2321 to rotate due to inertia. At this time, one end of the buffering elastic member 2322 is twisted by the second sliding seat 2321, but the other end is still fixed on the fixing portion 2312 of the inner tube 231, and the inner tube 231 is restricted by the outer rod 22 and cannot rotate, so that the buffering elastic member 2322 stores a buffering elastic potential energy, the second sliding seat 2321 stops rotating, and the first sliding seat 233 is restricted by the second sliding seat 2321 and stops rotating the outer tube 21. Therefore, the buffering elastic member 2322 can alleviate the impact force [ please match fig. 2] when the curtain cloth a is limited, so as to maintain the limited state, and prevent the first sliding seat 233 from being blocked by the second sliding seat 2321 and being unable to continue to rotate and move on the inner tube 231, but still driving the second sliding seat 2321 to rotate in situ and being unable to be limited, and meanwhile, the buffering elastic member 2322 prevents the limiting mechanism 23, and even the entire curtain of the fast-falling curtain cloth from being damaged by an excessive impact force. When the curtain fabric a is retracted, the outer tube 21 drives the first sliding seat 233 to rotate reversely along the limiting strip 211 in cooperation with the second threaded portion 2311 of the inner tube 231 to move away from the second sliding seat 2321, and at this time, the buffering elastic piece 2322 releases the buffering elastic potential to reset the second sliding seat 2321, which is not depicted in the drawing.

Referring to fig. 19 and 20, and referring to fig. 2, when the inner rod 241 is to be rotated by operating the operating portion 2411 of the inner rod 241 with a tool B such as a hex wrench, an external force is applied to the inner rod 241 by the tool B, the inner rod 241 is pressed in the direction of the outer rod 22, so that the first connector 2412 of the inner rod 241 is separated from the second connector 31 of the tailstock 3, and the return elastic member 244 sleeved on the inner rod 241 is compressed by the inner rod 241 to store a return elastic potential energy, the inner rod 241 can drive the outer rod 22 to rotate relative to the outer tube 21, so that the first slide seat 233 rotates on the inner tube 231 by the cooperation of the first thread portion 2333 and the second thread portion 2311 of the inner tube 231, and further adjusts a distance between the first slide seat 233 and the second slide 2321, which corresponds to a falling length of the curtain cloth, if the distance is a lead length of ten rotations of the first threaded portion 2333 relative to the second threaded portion 2311, the cord a will stop falling down because the first slide seat 233 pushes against the second slide seat 2321 after ten rotations of the outer tube 21 when the cord a is laid down, and the length of the cord a falling down is ten times of the circumference of the outer tube 21. A user can not only limit the curtain cloth a by the limiting mechanism 23 to avoid the curtain cloth a from falling excessively, but also adjust the distance between the first slide seat 233 and the second slide seat 2321 by operating the operating part 2411 of the inner rod 241, so as to limit the curtain cloth a at a desired height. When the operation portion 2411 is to be stopped after the distance is adjusted, the external force is stopped from being applied to the inner rod 241, the return elastic member 244 releases the return elastic potential energy to drive the inner rod 241 to return, so that the first joint member 2412 of the inner rod 241 is re-combined with the second joint member 31 of the tailstock 3, and the inner rod 241 does not rotate any more, so as to fix the adjusted distance.

Referring to fig. 21 and 22, and to fig. 2, when the curtain a is normally folded, the brake elastic member 246 normally tightly covers the tail seat 3. The brake spring 246 has a brake protrusion 2461 between a gear extension 2471 of the gear 247 and a second socket stop 2451 of the second socket 245.

Referring to fig. 20, 23 and 24, and referring to fig. 2, when the curtain a is vertically lowered, the outer tube 21 drives the first sleeve 242 to rotate and further drives the power-assisted elastic member 243 to rotate to store a power-assisted elastic potential energy to assist the effort required to roll the curtain a, when the user wants to reduce the effort required to roll the curtain a according to the weight of the curtain a, the user can rotate the gear 247, and the gear extension portion 2471 of the gear 247 pushes against the brake protrusion 2461 of the brake elastic member 246, so that the brake elastic member 246 is released from the tail seat 3. After the braking elastic member 246 is released, if the user continues to rotate the gear 247, the gear extension 2471 pushes the braking protrusion 2461 to touch the second socket stop 2451 of the second socket 245, and the gear 247 drives the second socket 245 to rotate relative to the first socket 242 and the outer tube 21, so that the boosting elastic member 243 stores a boosting elastic potential. After releasing the gear 247, the second socket 245 may rotate in the opposite direction to the direction in which the user rotates the gear 247 due to the tendency of the resilient member 243 to release the resilient potential, but upon rotation of the second socket 245, the second socket stopper 2451 pushes against the brake protrusion 2461, so that the resilient member 246 re-fits the tailstock 3, and the resilient member 243 is fixed to maintain the resilient potential. When the curtain cloth a is to be rolled up, the boosting elastic element 243 releases the boosting elastic potential energy, so that the user can roll up the curtain cloth a with less effort. Since the operation of the brake spring 246 is similar to that of the first spring 13 of fig. 6, it is only briefly described here.

Referring to fig. 2 and 3 again, when the curtain cloth a needs to be pulled down and hidden in an emergency, the user only needs to energize the electromagnetic valve 12 in a remote control mode or a switch mode, so as to control the separation of the front cap 15 and the engaging part of the winding mechanism 11, i.e. separate the front cap 15 from the inner cylinder 112 and the outer cylinder 113, so as to put down the curtain cloth a, and the user does not need to approach the door and window where the curtain cloth a is located to operate the winding wheel 111 in person, thereby reducing the risk of discovery. After the curtain cloth A falls down, the curtain cloth A can be limited at a proper height by the limiting mechanism 23, and meanwhile, the roller blind of the quick vertical falling curtain cloth is prevented from being damaged by strong impact force when the curtain cloth A falls down.

The utility model discloses with this stop gear 23 and this guiding mechanism 24's operation design in same one side, make things convenient for this user's adjustment operation.

The above embodiments are combined to fully understand the operation, use and efficacy of the present invention, but the above embodiments are only preferred embodiments of the present invention, and the scope of the present invention is not limited thereby, and all the simple equivalent changes and modifications made by the claims and the creation descriptions of the present invention are included in the scope of the present invention.

Claims (14)

1. A curtain of a curtain cloth capable of being vertically dropped quickly is used for vertically dropping a curtain cloth, and is characterized in that the curtain of the curtain cloth capable of being vertically dropped quickly comprises: a linkage assembly comprising an outer tube connected to the curtain cloth; and a control device, set up in one end of this outer tube and block in this outer tube, this control device contains: a winding mechanism, which is provided with a clamping part;

the electromagnetic valve is arranged in the winding mechanism;

the pushing and abutting mechanism is movably arranged on the rolling mechanism and is connected with the electromagnetic valve;

the front cap is clamped at the clamping part of the furling mechanism and is connected with the pushing mechanism; and

the damper is arranged in the winding mechanism; after the electromagnetic valve is electrified, the electromagnetic valve drives the pushing mechanism to push the front cap, so that the front cap is separated from the clamping part, and the winding mechanism does not receive the resistance of the damping and drives the outer tube to rotate to vertically drop the curtain cloth.

2. The rolling shutter of quick vertical drop curtain cloth according to claim 1, characterized in that: the winding mechanism comprises a winding wheel, an inner cylinder and an outer cylinder, the winding wheel is provided with an acting part connected with the inner cylinder, the clamping part comprises a first clamping part arranged on the inner cylinder and a second clamping part arranged on the outer cylinder, and the inner cylinder and the outer cylinder are detachably clamped with the front cap through the first clamping part and the second clamping part respectively.

3. The rolling shutter of quick vertical drop curtain cloth according to claim 2, characterized in that: still include a fixing base, this damping is a first elastic component, this first elastic component cover is tight on this fixing base, this first elastic component has a bulge, this effect portion of this winding wheel is an extension lamellar body, this extension lamellar body stretches into this inner tube, this inner tube has a stop part to extending the lamellar body, there is an operating space between this stop part and this extension lamellar body, this bulge of this first elastic component stretches into this operating space, push away this bulge of this first elastic component through this extension lamellar body, make this first elastic component loosen from this fixing base.

4. The rolling shutter of quick vertical drop curtain cloth according to claim 2, characterized in that: the first clamping part of the inner cylinder is a convex point which can be clamped in a clamping groove of the front cap in a detachable way.

5. The rolling shutter of quick vertical drop curtain as claimed in claim 2, characterized in that: the second clamping part of the outer cylinder is a plurality of convex blocks which can be clamped between a plurality of clamping blocks of the front cap in a separable way.

6. The rolling shutter of quick vertical drop curtain as claimed in claim 3, characterized in that: the pushing mechanism comprises a shaft, a second elastic piece and a screw piece, the second elastic piece is arranged on the shaft, the shaft is connected with the electromagnetic valve, the shaft and the front cap are locked by the screw piece, and the fixed seat is provided with a retaining wall corresponding to the second elastic piece; when the electromagnetic valve is electrified, the shaft piece is controlled to extend out, so that the front cap is pushed by the shaft piece to be separated from the furling mechanism, and the second elastic piece is propped against the retaining wall to be compressed and store elastic potential energy; after the electromagnetic valve is powered off, the second elastic piece releases the elastic potential energy to drive the shaft piece to reset, so that the front cap is clamped with the winding mechanism.

7. The rolling shutter of quick vertical drop curtain cloth according to claim 1, characterized in that: there is a fixed seat, the electromagnetic valve is set in the fixed seat.

8. The rolling shutter of quick vertical drop curtain cloth according to claim 1, characterized in that: an outer rod is arranged in the outer tube, a limiting mechanism is arranged on the outer rod and clamped on the outer tube, the limiting mechanism comprises an inner tube sleeved at one end of the outer rod, a sliding seat and a limiting seat, the sliding seat rotates and moves on the inner tube, the sliding seat is provided with a first thread portion, the inner tube is provided with a second thread portion, the sliding seat is meshed with the second thread portion through the first thread portion, the outer tube is provided with a limiting strip located in the limiting portion of the sliding seat, when the outer tube rotates and vertically descends the curtain cloth, the sliding seat is driven to be matched with the second thread portion to rotate and move on the inner tube along the limiting strip, and when the sliding seat is pushed against the limiting seat, the sliding seat drives the outer tube to stop rotating.

9. The rolling shutter of quick vertical drop curtain as claimed in claim 8, characterized in that: the sliding seat is a first sliding seat, the limiting seat comprises a second sliding seat and a buffering elastic piece, the buffering elastic piece is arranged between the inner pipe and the second sliding seat, and when the first sliding seat is pushed against the second sliding seat, the buffering elastic piece stores a buffering elastic potential energy to enable the second sliding seat to stop being rotated; when the first sliding seat is far away from the second sliding seat, the buffering elastic piece releases the buffering elastic potential energy to enable the second sliding seat to reset.

10. The rolling shutter of quick vertical drop curtain as claimed in claim 8, characterized in that: the sliding seat is provided with a first combining part, the limiting seat is provided with a second combining part, and when the sliding seat pushes against the limiting seat, the first combining part is combined with the second combining part.

11. The rolling shutter of quick vertical drop curtain as claimed in claim 8, characterized in that: a tail seat is arranged at the other end of the outer tube, an inner rod is arranged in the tail seat, and the inner rod is connected with the outer rod; when an operating part of the inner rod is operated to rotate the inner rod, the inner rod drives the outer rod to rotate relative to the outer tube, so that the sliding seat rotates on the inner tube to adjust a distance between the sliding seat and the limiting seat.

12. The rolling shutter of quick vertical drop curtain as claimed in claim 11, wherein: the inner rod comprises a first combining piece, a second combining piece is arranged on the tailstock, and a resetting elastic piece is sleeved on the inner rod; the first combining piece of the inner rod is separated from the second combining piece of the tailstock by operating the operating part, at the moment, the reset elastic piece stores reset elastic potential energy, and the inner rod drives the outer rod to rotate relative to the outer pipe; when the operation part is stopped, the reset elastic piece releases the reset elastic potential energy to operate the inner rod to reset, so that the first combining piece of the inner rod is embedded and clamped in the second combining piece.

13. The rolling shutter of quick vertical drop curtain as claimed in claim 12, wherein: the second combining piece is combined with the tailstock through a C-shaped buckle.

14. The rolling shutter of quick vertical drop curtain cloth according to claim 1, characterized in that: a first sleeve seat is arranged in the outer tube and clamped with the outer tube, a tailstock is arranged at the other end of the outer tube, an adjusting piece and a second sleeve seat are arranged on the tailstock, a braking elastic piece is tightly sleeved on the tailstock, and a power-assisted elastic piece is connected with the first sleeve seat and the second sleeve seat; rotating the adjusting member, pushing a brake protruding portion of the brake elastic member by the adjusting member to release the brake elastic member from the tailstock, and driving the second socket to rotate relative to the first socket by the adjusting member to enable the power-assisted elastic member to store a power-assisted elastic potential energy; when the adjusting member stops rotating, the second sleeve seat pushes against the brake protrusion, and the brake elastic member is tightly sleeved on the tail seat, so that the power-assisted elastic member maintains the power-assisted elastic potential.

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