WO2013097085A1

WO2013097085A1 - Apparatus able to firmly lock processor top and food processor using same

Info

Publication number: WO2013097085A1
Application number: PCT/CN2011/084715
Authority: WO
Inventors: 李晓川
Original assignee: 深圳市联创三金电器有限公司
Priority date: 2011-12-27
Filing date: 2011-12-27
Publication date: 2013-07-04

Abstract

Disclosed is an apparatus able to firmly lock a processor top and a food processor using the apparatus. The apparatus comprises a main locking mechanism mounted at the rear of a processor housing. The processor housing comprises a bottom housing (2) and a middle housing (3). The main locking mechanism comprises a limiting block (31) fixed in the middle housing (3), a latch tongue (21) mounted in the bottom housing (2), and a push flap (22) mounted at the bottom of the bottom housing (2). When the processor top (1) is placed on, the tip (210) of the latch tongue (21) extends out of the bottom housing (2) and stands in front of the limiting block (31) to lock the processor head (1); by pushing the push flap (22), then twisting the processor top (1) clockwise until the top is raised and at this time loosening the push flap (22), the latch tongue tip (210) gradually rises until the front end face thereof contacts a rear stop (311) of the limiting block, thus locking the processor top (1). The apparatus is safe and reliable, and can prevent the processor top from unexpectedly lifting by firmly locking the processor top.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a kitchen appliance, and more particularly to a multi-function food processor capable of lifting a processing head, and more particularly to locking a processing head securely Device and food processor using the device. BACKGROUND OF THE INVENTION Prior art multi-function food processing machines generally have accessories such as a juice cup, an egg beater, a dough mixer, a blender, a meat grinder, a face cutter, a shred/slicer, and the like. The work is carried out in a state of being lowered and locked, and the disassembly and assembly of the egg beater, the dough mixer, the agitator and the container cup need to be lifted up to complete. The prior art devices for locking the processing head, hereinafter referred to as the locking device, are disposed in the middle and upper portions of the interior of the food processing machine housing, as shown in Figures 7 through 9, using a shaft 9 with a double D-shaped notch. And the slotted guide rail 8 is used to lock the handpiece. However, the locking function of the prior art locking device is not very reliable, and the button 5 of the locking device and the button 6 of the starting machine are very close, and it is necessary to identify which is the head button 5 and which is the starting button 6 during operation. , it is easy to misuse. Especially when the juice cup is working, when the head button 6 is mistakenly operated, the machine head will lift up quickly under the action of the spring, causing the juice cup to fall, or the stirred juice to be poured on the work surface; The double D-notched shaft 9 and the slotted guide rail 8 lock the head. Under heavy load working conditions, the guide rail 8 will rotate the dial shaft, causing the head to suddenly open and the safety performance is insufficient. Summary of the invention

The technical problem to be solved by the present invention is to avoid the above-mentioned deficiencies of the prior art and to provide a lock device which is safe and reliable, can prevent the nose from being accidentally lifted and securely locks the processing head, and a food processing machine using the same. . The technical solution proposed by the present invention to solve the technical problem is: designing and manufacturing a device capable of locking the food processing machine head firmly, hereinafter referred to as a lock device, being installed in a food processing machine casing for use in the processing machine The state is locked when the head is lowered or raised; the processing machine housing includes a bottom case and a middle case), which are rotatably coupled to each other by a pivot, in particular:

The lock device includes a main lock mechanism mounted at a rear portion of the processing machine housing, the main lock mechanism further including a limit block fixed in the middle case, a lock tongue installed in the bottom case, and mounting a paddle at the bottom of the bottom case; the limiting block is provided with a front stop position and a rear stop position;

When the processing head is in the lowered state, the middle case is matched with the bottom case, and the head of the locking tongue protrudes from the bottom case and is blocked in front of the limiting block. a rear end face of the latch head that interferes with a front stop of the stop block, thereby blocking the stop block from rotating clockwise about the pivot together with the middle case, at which time the handpiece is locked Not being able to rotate when being lowered; pushing the paddle to gradually move the head of the tongue down and away from the front stop of the stop block, and then about the pivot, the vertical face perpendicular to the pivot Rotating the handpiece clockwise to the head up state, so that the bottom surface of the middle shell intersects the top surface of the bottom shell at an acute angle δ. At this time, the paddle is released, and the head of the bolt is gradually moved up to the front end thereof. The surface is in contact with the stop after the stop block, thereby blocking the limit block from rotating counterclockwise around the pivot together with the middle case, the head is locked in the head up state and cannot be rotated; The paddle, the tongue of the tongue is gradually moved downward and leaves the After its stop bit block, the head rotates counterclockwise, and it can be put back to the state.

Further, the lock device further includes an auxiliary lock mechanism installed at a front portion of the casing, the auxiliary lock mechanism further comprising a support pin fixed to a front portion of the bottom case, and being installed in the middle case, a spring assembly in which the handpiece is lowered and coaxially mounted on the support pin, the spring assembly including a spring sleeve and a fulcrum spring therein; the head of the support pin extends into the middle Inside the shell And pressing against the bottom of the spring sleeve, the fulcrum spring is installed in a blind hole in the upper part of the spring sleeve. Further, the main lock mechanism further includes a bolt support seat fixed in the bottom casing, and the lock tongue support seat is slidably fitted with a lock tongue, a circlip, a flat washer and a coil spring; The bolt slides up and down under the action of a spring, the head of which radially abuts or releases the stop block, so that the processing head is locked or rotatable.

Further, the main lock mechanism further includes a pivot bracket fixed in the bottom casing, and the limiting block is disposed between the two arms of the pivot bracket that are parallelly lifted, and is pivotable with the pivot shaft Connected to the ground, the two ends of the pivot are fixed in the middle casing; the central portion of the pivot bracket is provided with a through hole for sliding the tongue up and down, and the head of the bolt is radially resisted or released. The limit block is described such that the processing head is locked or rotatable.

Further, the lower end of the bolt is connected to the upper end of the connecting rod through a connecting pin, the lower end of the connecting rod is connected with one end of the paddle, and the other end of the paddle is a free end and extends Outside the bottom case, the paddles are connected to the pad support seat fixed at the bottom of the inner cavity of the bottom case.

Further, the front stop position of the limiting block is in planar contact with the rear end of the bolt head. Similarly, the rear stop position of the limiting block is in planar contact with the front end of the bolt head. To lock the electrical head.

Further, when the handpiece is in the head-up state, the bottom surface of the middle shell intersects the top surface of the bottom shell at an acute angle of 45° > δ > 40. .

Further, the main locking mechanism of the locking device is disposed at the rear of the inner cavity of the electrical casing, and correspondingly, the paddle is disposed at the rear bottom of the inner cavity of the bottom casing.

The technical solution proposed by the present invention to solve the technical problem further includes a food processing machine using the lock device, the device for locking the processing head, hereinafter referred to as a lock device, being installed in food processing The casing is configured to lock the state when the processing head is lowered or raised; the processing machine housing includes a bottom case and a middle case, and is rotatably coupled to each other by a pivot, in particular:

Further, the lock device further includes an auxiliary lock mechanism installed at a front portion of the casing, the auxiliary lock mechanism further comprising a support pin fixed to a front portion of the bottom case, and being installed in the middle case, a spring assembly in which the handpiece is lowered and coaxially mounted on the support pin, the spring assembly including a spring sleeve and a fulcrum spring therein; the head of the support pin extends into the middle Inside the casing and against the bottom of the spring sleeve, the fulcrum spring is mounted in a blind hole in the upper portion of the spring sleeve.

Further, the main lock mechanism further includes a bolt support seat fixed in the bottom case, the lock The tongue support seat is slidably fitted with a lock tongue, a circlip, a flat washer and a coil spring; the bolt slides up and down under the action of the spring, and the head radially abuts or releases the limit block, thereby The processing head is locked or rotatable.

Compared with the prior art, the invention has the beneficial effects that the locking of the food processing machine head can be achieved, and the locking device is disposed at the rear of the inner cavity of the electric appliance casing, correspondingly, the button of the locking device It is placed behind the lower part of the inner casing of the machine, so that it is far away from the start switch button, which can prevent the machine head from being accidentally lifted, making the machine safer and more reliable. DRAWINGS

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a front elevational view of a preferred embodiment of the food processing machine of the present invention, showing the appearance of the processing head when it is lowered;

Figure 2 is a front elevational view of the food processing machine head of Figure 1 after being lifted and locked;

Figure 3 is an exploded perspective view showing the exploded state of the food processing machine lock device of the preferred embodiment of the present invention;

Figure 4 is a partial cross-sectional enlarged view of Figure 1;

Figure 5 is a partial cross-sectional enlarged view of Figure 2;

Figure 6 is a partial cross-sectional view of the food processing machine head of Figure 1 raised to a set angle; Figure 7 is a front elevational view of the appearance of the prior art food processor;

Figure 8 is a partial cross-sectional view of Figure 7;

Figure 9 is a partial cross-sectional view of the orthographic projection of the prior art food processor head after accidental lifting. detailed description

The invention will be further described in detail below with reference to the accompanying drawings.

Referring to Figures 1 to 6, a food processing machine using a device that can securely lock a processing head, the device for locking the processing head, hereinafter referred to as a locking device, is mounted in a food processing machine housing. For locking the state when the processing head 1 is lowered or raised; the processing machine housing includes a bottom case 2 and a middle case 3, which are rotatably coupled to each other by a pivot 4;

The lock device includes a main lock mechanism mounted at a rear portion of the processing machine housing, the main lock mechanism further including a limit block 31 fixed in the middle case 3, and a lock tongue installed in the bottom case 2 21 , and a paddle 22 mounted on the bottom of the bottom case 2; the limiting block 31 is provided with a front stop position 310 and a rear stop position 311; When the processing head 1 is in the lowered state, the middle case 3 coincides with the bottom case 2, and the head 210 of the locking tongue 21 protrudes from the bottom case 2 and blocks the limit In front of the block 31, the rear end surface of the bolt head 210 is in contact with the front stop position 310 of the limiting block 31, thereby blocking the limiting block 31 from surrounding the middle casing 3 The pivot 4 rotates clockwise, at which time the handpiece 1 is locked in the lowered state and cannot be rotated; the paddle 22 is toggled to gradually move the tongue head 210 downward and away from the stop block 31. a gear 310, and rotating the head 1 to the heading state clockwise about the pivot 4 on a vertical plane perpendicular to the pivot 4, so that the bottom surface of the middle shell 3 and the top surface of the bottom shell 2 The intersection is at an acute angle δ. At this time, the paddle 22 is released, and the tongue portion 210 is gradually moved upward until the front end surface thereof interferes with the stop position 311 after the stopper block 31, thereby blocking the stopper block 31. Rotating counterclockwise about the pivot shaft 4 together with the middle casing 3, the handpiece 1 is locked in the head-up state and cannot be rotated; the paddle 22 is again dialed to make the lock The tongue portion 210 is gradually moved downward and away from the rear stop position 311 of the stopper block 31, and the head 1 is rotated in the counterclockwise direction, and can be returned to the lowered state.

The apparatus further includes an auxiliary lock mechanism mounted at a front portion of the cabinet, the auxiliary lock mechanism further including a support pin 23 fixed to a front portion of the bottom case 2, and mounted in the middle case 3, in the a spring assembly in which the handpiece 1 is placed in a state of being mounted on the support pin 23 and coaxially mounted thereon, the spring assembly including a spring sleeve 320 and a fulcrum spring 321 therein; the head of the support pin 23 extends into the body The inner casing 3 is placed against the bottom of the spring sleeve 320, and the fulcrum spring 321 is mounted in a blind hole in the upper portion of the spring sleeve 320.

The main lock mechanism further includes a bolt support seat 20 fixed in the bottom case 2, and the lock tongue support base 20 is slidably fitted with a lock tongue 21, a circlip 24, a flat washer 25, and The coil spring 26; the bolt 21 slides up and down under the action of the spring 26, and the head 210 radially abuts or releases the limit The block 31 is such that the processing head 1 is locked or rotatable. The main lock mechanism further includes a pivot bracket 27 fixed in the bottom case 2, and the limiting block 31 is disposed between the two arms of the pivot bracket 27 in parallel, with the pivot 4 Rotatablely connected, two ends of the pivot shaft 4 are fixed in the middle casing 3; a central portion of the pivot bracket 27 is provided with a through hole for sliding the tongue 21 up and down, and the head of the bolt 21 The stop member 31 is radially opposed or released so that the processing head 1 is locked or rotatable.

The lower end of the bolt 21 is connected to the upper end of the connecting rod 29 via a connecting pin 28, the lower end of the connecting rod 29 is connected to one end of the paddle 22, and the other end of the paddle 22 is a free end and Extending out of the bottom case 2, the paddles 22 are connected to a paddle support 220 fixed to the bottom of the inner cavity of the bottom case 2.

The front stop position 3 0 of the limiting block 31 is in planar contact with the rear end of the bolt head 21 0 , and likewise, the rear stop position 31 1 of the limiting block 31 and the bolt head The front end of the 21 0 is a flat contact to lock the electrical head 1 .

When the handpiece 1 is in the head up state, the bottom surface of the middle casing 3 intersects the top surface of the bottom casing (2) at an acute angle 45. > δ > 40. .

The main lock mechanism of the lock device is disposed at the rear of the inner cavity of the electric casing, and correspondingly, the paddle 22 is disposed at the rear bottom of the inner cavity of the bottom case 2.

Claims

Claim

1. A device capable of securely locking a processing head, hereinafter referred to as a locking device, mounted in a food processing machine housing for locking the state when the processing head (1) is lowered or raised; The processing machine housing comprises a bottom case (2) and a middle case (3) rotatably coupled to each other by a pivot (4), characterized in that:

The lock device includes a main lock mechanism mounted at a rear portion of the processing machine housing, the main lock mechanism further including a limit block (31) fixed in the middle case (3) and mounted on the bottom case ( 2) a locking tongue (21), and a paddle (22) mounted at the bottom of the bottom case (2); the limiting block (31) is provided with a front stop position 10) and a rear stop position

When the processing head (1) is in the lowered state, the middle casing (3) is matched with the bottom casing (2), and the head (210) of the locking tongue (21) is from the bottom casing (2) Extending inside, and blocking the limit block

(31) front, at this time, the rear end surface of the bolt head (210) is in conflict with the front stop position (310) of the limiting block (31), thereby blocking the limiting block (31) together with The middle case (3) starts to rotate clockwise around the pivot (4), at which time the handpiece (1) is locked in a lowered state and cannot be rotated; the paddle (22) is toggled to make the lock The tongue head (210) gradually moves down and leaves the limit block

a front stop (310) of (31), and rotating the handpiece (1) clockwise around the pivot (4) on a vertical plane perpendicular to the pivot (4) to cause the The bottom surface of the middle shell (3) intersects the top surface of the bottom shell (2) at an acute angle δ. At this time, the paddle (22) is released, and the bolt head (210) is gradually moved up to the front end surface thereof. Resisting the stop position (311) with the stop block (31), thereby blocking the limit block (31) from rotating counterclockwise around the pivot (4) together with the middle case (3), The handpiece (1) is locked in the head-up state and cannot be rotated; the paddle (22) is again dialed to gradually move the bolt head (210) downward and away from the limit block (31) Stop position ( 311 ), Rotating the handpiece (1) counterclockwise again returns it to the lowered state.

2. The apparatus for locking a processing head securely according to claim 1, wherein: the apparatus further comprises an auxiliary lock mechanism mounted at a front portion of the cabinet, the auxiliary lock mechanism further comprising a bottom fixed to the bottom shell

(2) a front support pin (23), and mounted in the middle case (3), on the support pin (23) in a state in which the handpiece (1) is lowered, and coaxial with a spring assembly, the spring assembly comprising a spring sleeve (320) and a fulcrum spring (321) therein; a head of the support pin (23) extending into the middle casing (3) and holding the spring The bottom of the sleeve (320), the fulcrum spring

(321) is mounted in a blind hole in the upper portion of the spring sleeve (320).

3. The apparatus for locking a processing head securely according to claim 1, wherein: said main lock mechanism further comprises a bolt support seat (20) fixed in said bottom casing (2), said lock coaxially within the support base of the tongue (20) slidably fitted with a latch (21), the circlip (24), a flat gasket (25) and a coil spring ^(26); bolt 1) of the spring 6) acting The lower portion slides up and down, and its head ( ² 10) radially abuts or releases the limit block (31), so that the processing head (1) is locked or rotatable.

4. The apparatus for locking a processing head securely according to claim 1, wherein: said main lock mechanism further comprises a pivot bracket (27) fixed in said bottom casing (2), said limit a position block (31) is disposed between the two arms of the pivot bracket (27) which are lifted in parallel, and is rotatably connected thereto by a pivot shaft (4), and both ends of the pivot shaft (4) are fixed at the same Inside the middle casing (3); a central portion of the pivot bracket (27) is provided with a through hole for sliding the locking tongue (21) up and down, and the head (210) of the locking tongue (21) is radially opposed or The stop block (31) is released such that the processing head (1) is locked or rotatable.

5, as claimed in processing means can securely lock the head in claim 1, wherein: the lower end of the locking bolt ⁽²¹⁾ is connected by a connecting pin ⁽²⁸⁾ and the link ⁽²⁹⁾ of the upper end a lower end of the connecting rod (29) is connected to one end of the paddle (22), and the other end of the paddle (22) is a free end and protrudes outside the bottom case (2), The paddle (22) is coupled to a paddle support (220) fixed to the bottom of the inner cavity of the bottom case (2).

The lock device according to claim 1, wherein: the front stop position (310) of the limiting block (31) is in planar contact with the rear end of the bolt head (210), and likewise The rear stop position (311) of the limiting block (31) is in planar contact with the front end of the bolt head (210) to lock the electrical head (1).

7. The lock device according to claim 1, wherein: when the handpiece (1) is in a head-up state, a bottom surface of the middle casing (3) intersects a top surface of the bottom casing (2) Sharp angle 45° > δ > 40°.

8. The lock device according to claim 1, wherein: the main lock mechanism of the lock device is disposed at a rear portion of the inner cavity of the electric device casing, and correspondingly, the paddle (22) is disposed at the bottom case (2) The rear bottom of the inner cavity.

9. A food processing machine using a device for locking a processing head securely, the device for locking a processing head, hereinafter referred to as a locking device, mounted in a food processing machine housing for use in the processing machine Locking the head when the head (1) is lowered or raised; the processing machine housing includes a bottom case (2) And the middle shell (3), rotatably coupled to each other by a pivot (4), characterized by:

(31) front, at this time, the rear end surface of the bolt head (210) is in conflict with the front stop position (310) of the limiting block (31), thereby blocking the limiting block (31) together with The middle case (3) starts to rotate clockwise around the pivot (4), at which time the handpiece (1) is locked in the lowered state and cannot be rotated; the paddle (22) is toggled to make the lock The tongue head (210) gradually moves down and leaves the limit block

a front stop (310) of (31), and rotating the handpiece (1) clockwise around the pivot (4) on a vertical plane perpendicular to the pivot (4) to cause the The bottom surface of the middle shell (3) intersects the top surface of the bottom shell (2) at an acute angle δ. At this time, the paddle (22) is released, and the bolt head (210) is gradually moved up to the front end surface thereof. Resisting the stop position (311) with the stop block (31), thereby blocking the limit block (31) from rotating counterclockwise around the pivot (4) together with the middle case (3), The handpiece (1) is locked in the head-up state and cannot be rotated; the paddle (22) is again dialed to gradually move the bolt head (210) downward and away from the limit block (31) The stop position (311), rotating the handpiece (1) counterclockwise, can return it to the lowered state.

10. The food processor of claim 9, wherein: the apparatus further comprises an auxiliary lock mechanism mounted to the front of the cabinet, the auxiliary lock mechanism further comprising a front housing (2) Ministry a support pin (23), and a spring assembly mounted in the middle casing (3), mounted on the support pin (23) in a state in which the handpiece (1) is lowered, and coaxially mounted thereto The spring assembly includes a spring sleeve (320) and a fulcrum spring (321) therein; a head of the support pin (23) extends into the middle casing (3) and bears against the bottom of the spring sleeve (320) The fulcrum spring (321) is mounted in a blind hole in an upper portion of the spring sleeve (320).

11. The food processor of claim 9, wherein: said primary lock mechanism further comprises a bolt support seat (20) secured in said bottom casing (2), said bolt support seat (20) coaxial) slidably fitted inside with a tongue ^(21), the circlip ^(24), flat gasket ⁽²⁵⁾ and the coil spring (26); bolt (21) up and down by the spring (26) acting Sliding, the head (210) radially abuts or releases the stop block (31) so that the processing head (1) is locked or rotatable.

The food processing machine according to claim 9, wherein: the main lock mechanism further comprises a pivot bracket (27) fixed in the bottom case (2), the limiting block (31) Between the two arms of the parallel pivoting of the pivot bracket (27), rotatably connected thereto by means of a pivot shaft (4), the two ends of the pivot shaft (4) being fixed to the middle shell (3) The middle of the pivot bracket (27) is provided with a through hole for sliding the tongue (21) up and down, and the head (210) of the bolt (21) radially resists or releases the limit. Block (31) such that the processing head (1) is locked or rotatable.

The food processing machine according to claim 9, wherein: the lower end of the bolt (21) is connected to the upper end of the connecting rod (29) via a connecting pin (28), the connecting rod (29) The lower end is connected to one end of the paddle (22), the other end of the paddle (22) is a free end and extends out of the bottom case (2), and the paddle (22) is fixed a pick at the bottom of the inner casing (2)

The food processing machine according to claim 9, wherein: the front stop position (310) of the limiting block (31) is in planar contact with the rear end of the bolt head (210), and the same The rear stop position (311) of the limiting block (31) is in planar contact with the front end of the bolt head (210) to lock the electrical head (1).

The food processing machine according to claim 9, wherein: when the handpiece (1) is in a head-up state, a bottom surface of the middle casing (3) intersects a top surface of the bottom casing (2) It has an acute angle of 45° > δ >40°.

The food processing machine according to claim 9, wherein: the main lock mechanism of the lock device is disposed at a rear portion of the inner cavity of the electric device casing, and correspondingly, the paddle (22) is disposed at the bottom Shell (2) The bottom bottom of the inner cavity.