CN108851136B

CN108851136B - Clove separating equipment for separating garlic bulbs based on extrusion force

Info

Publication number: CN108851136B
Application number: CN201810645674.5A
Authority: CN
Inventors: 杨招成
Original assignee: Individual
Current assignee: Li Fanghua
Priority date: 2018-06-21
Filing date: 2018-06-21
Publication date: 2020-07-24
Anticipated expiration: 2038-06-21
Also published as: CN111466595A; CN108851136A

Abstract

The invention provides a splitting device for separating garlic bulbs based on extrusion force, and relates to the field of catering food material processing. This split equipment based on extrusion force separates garlic, including the separation bucket, the top and the bottom of separation bucket are cavity, the inner wall fixedly connected with bracing piece of separation bucket, the one end fixedly connected with circle piece of separation bucket inner wall is kept away from to the bracing piece, the inside of separation bucket is provided with the split device, the bottom of separation bucket is provided with transmission, transmission is provided with connecting device, the bottom fixedly connected with supporting leg of separation bucket. This split equipment based on extrusion force separates garlic, and the surface of ring passes through second lug, first lug, connecting rod and activity track piece fixed connection, can promote the activity track piece when the ring drives the second lug and rotates and move in the inside of cross fluting, and the square will be close to the flexible garlic on the activity track piece and shell the piece to make things convenient for the garlic to carry out the split.

Description

Clove separating equipment for separating garlic bulbs based on extrusion force

Technical Field

The invention relates to the field of catering food material processing, in particular to a clove separating device for separating garlic bulbs based on extrusion force.

Background

The garlic is introduced from the Han generation period and has strong growth adaptability, and is widely planted in a wide area of China, the garlic is oblate or short conical, the outside of the garlic is provided with gray white or light brown membranous scales, the scaly leaves are peeled off, and the inside of the garlic is provided with 6-10 garlic cloves.

Garlic is used as a necessary seasoning on a dining table of a restaurant, the daily demand is large, the dried garlic is wrapped by scaly skins, the efficiency is low when the garlic is manually split, compared with the patent CN103876260B, an automatic garlic splitting device is disclosed, a garlic head moving space which is changed from large to small is formed by eccentrically mounting a flexible gear and a flexible stepped tooth group, the automatic garlic splitting function is realized under the rotating flexible extrusion action of inner and outer teeth, but when too many garlic is thrown into the garlic splitting device at one time, the situation that the flexible gear and the flexible stepped tooth group are clamped can be caused, and the device cannot normally work.

Therefore, further improvements are desired.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a garlic clove separating device based on extrusion force, which solves the problem that the device cannot work normally due to the fact that a shell is clamped between a flexible gear and a flexible stepped tooth group.

(II) technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a split equipment based on extrusion force separates garlic, includes the separation bucket, the top and the bottom of separation bucket are cavity, the inner wall fixedly connected with bracing piece of separation bucket, the one end fixedly connected with circle piece that the separation bucket inner wall was kept away from to the bracing piece, the inside of separation bucket is provided with the split device, the bottom of separation bucket is provided with transmission, transmission is provided with connecting device, the bottom fixedly connected with supporting leg of separation bucket.

Preferably, the split device comprises a cylinder, a cross-shaped slot, a movable track block, a flexible stripping block, a fixed block, a connecting rod, a supporting spring, a first lug, a rotating shaft, a ring, a sleeve, a first bearing, a second bearing and a second lug, the inner wall and the flexible stripping block of the separation barrel are fixedly connected, the cylinder is arranged in the separation barrel, the cross-shaped slot is arranged at the top of the cylinder, the inner sliding connection of the cross-shaped slot is provided with the movable track block, the rotating shaft is arranged in the inner part of the cross-shaped slot, the outer surface of the rotating shaft is fixedly connected with the ring, the outer surface of the ring is fixedly connected with the second lug, one end of the ring is far away from the second lug and is in contact with the first lug, one end of the first lug is far away from the first lug and is fixedly connected with the connecting rod, one end of the connecting rod, which is far away from the, the surface and the fixed block swing joint of connecting rod, the surface of connecting rod is located and cup joints with the supporting spring activity between fixed block and the first lug, the one end that the ring was kept away from in the pivot runs through cylinder and fritter and extends to the below of fritter, the sheathed tube is inside cup joints with the pivot, the sheathed tube inner wall is fixed through first bearing and pivot and cup joints, cylindrical bottom and sleeve pipe fixed connection, the one end that the fritter was kept away from to the sleeve pipe runs through the fritter and extends to the below of fritter, sheathed tube surface and second bearing are fixed to be cup jointed, the outer lane and the fritter fixed connection of second bearing.

Preferably, the number of the movable track blocks is four, and the four movable track blocks are distributed in a cross shape.

Preferably, the cross section of the flexible stripping blocks is trapezoidal, the number of the flexible stripping blocks is eight, two flexible stripping blocks form a group, and four groups of the flexible stripping blocks are distributed at equal intervals.

Preferably, the transmission device comprises a transmission motor, a driving gear, a first transmission gear, a first connecting shaft, a second transmission gear, a sector gear, a transmission rack, a fixed shaft, a third bearing, a rectangular block and a slide rail groove, the bottom of the round block is fixed with the transmission motor through threads, the output end of the transmission motor is fixedly connected with the driving gear, the insection end of the driving gear is meshed with the first transmission gear, the inner ring of the first transmission gear is fixedly sleeved with the first connecting shaft, one end of the first connecting shaft, far away from the first transmission gear, is movably connected with the round block, the insection end of the first transmission gear is meshed with the second transmission gear, the inner ring of the second transmission gear is fixedly sleeved with a rotating shaft, the outer wall of the sleeve is positioned below the round block and is fixedly connected with the sector gear, the insection end of the sector gear is meshed with the transmission rack, the front face of the transmission rack is fixedly connected with the fixed shaft, the bottom of the round block is positioned in front of the transmission rack and fixedly connected with the rectangular block, the slide rail groove is formed in the back of the rectangular block, one end, far away from the rectangular block, of the fixed shaft penetrates through the slide rail groove and extends to the inside of the slide rail groove, the third bearing is arranged inside the slide rail groove, and the inner ring of the third bearing is fixedly sleeved with the fixed shaft.

Preferably, the outer ring of the third bearing is in rolling connection with the slide rail groove.

Preferably, connecting device includes third drive gear, second connecting axle, transmission bearing, transmission shaft, pipe, transfer line and fixed pin, the insection end and the third drive gear meshing of first drive gear, third drive gear's inner circle and the fixed cup joint of second connecting axle, second connecting axle and disk swing joint, drive gear's front and transmission bearing's outer lane fixed connection, transmission bearing's inner circle and the fixed cup joint of transmission shaft, the outer lane and the pipe activity of transmission shaft cup joint, the surface and the transfer line fixed connection of pipe, the one end that the pipe was kept away from to the transfer line is passed through fixed pin and is passed through transmission rack activity hinge.

(III) advantageous effects

The invention provides a clove separating device for separating garlic bulbs based on extrusion force. Has the following beneficial effects:

1. this split equipment based on extrusion force separates garlic, through setting up movable rail piece, has seted up the arc track on the movable rail piece and can make things convenient for the garlic to carry in that the arc track is inside to make things convenient for the flexibility to shell a piece and the contact of garlic.

2. This split equipment based on extrusion force separates garlic, and the surface of ring passes through second lug, first lug, connecting rod and activity track piece fixed connection, can promote the activity track piece when the ring drives the second lug and rotates and move in the inside of cross fluting, and the square will be close to the flexible garlic on the activity track piece and shell the piece to make things convenient for the garlic to carry out the split.

3. This split equipment based on extrusion force separates garlic, through setting up the supporting spring that sets up between first lug and the fixed block, supporting spring's holding power can kick-back first lug to make movable track piece return, make things convenient for first lug and ring contact.

4. This split equipment based on extrusion force comes separation garlic bulb, the flexible piece of shelling adopts the rubber material, prevents to cause the damage of garlic clove when carrying out the extrusion split with the garlic bulb, improves the integrality of garlic clove.

5. This split equipment based on extrusion force separates the garlic can make garlic evenly distributed in arc orbital inside through setting up movable track piece, prevents that the condition of the excessive appearance card shell of garlic volume from taking place.

6. This split equipment based on extrusion force separates garlic bulb is trapezoidal through the shape of flexible piece of peeling off can make its sharp acute angle improve the separation of garlic clove when contacting with the garlic clove to improve its separation effect.

7. This split equipment based on extrusion force separates garlic, and connecting device is connected with the transmission of first drive gear, and connecting device can drive the driving rack when operation and control the circulation and remove to through driving rack and sector gear meshing, drive sector gear, sleeve pipe and cylinder when can making the driving rack operation and carry out regular rotation, conveniently carry out the split operation with the garlic, improve the split effect.

8. This split equipment based on extrusion force comes separation garlic head through sector gear and drive rack meshing, can improve the transmission effect to the cylinder.

9. According to the splitting equipment for separating the garlic bulbs based on the extrusion force, the rotating shaft and the sleeve can be driven to run simultaneously by the rotation of the transmission motor, and the transmission motor is used as the same power source, so that the manufacturing cost can be saved.

10. This split equipment based on extrusion force comes separation garlic, the inner wall and the third bearing roll of slide rail groove and are connected, and the inner circle of third bearing passes through the fixed axle to be connected with the driving rack, can make driving rack operation more stable.

Drawings

FIG. 1 is a partial schematic view of the structure of the present invention;

FIG. 2 is a top view of the structure of the present invention;

FIG. 3 is a bottom view of the present invention;

FIG. 4 is an enlarged view of a portion of the structure of FIG. 3;

FIG. 5 is a cross-sectional view of a rectangular block structure of the present invention.

The device comprises a separation barrel 1, a support rod 2, a round block 3, a split device 4, a cylinder 401, a cross slot 402, a movable track block 403, a flexible stripping block 404, a fixed block 405, a connecting rod 406, a support spring 407, a first bump 408, a rotating shaft 409, a circular ring 410, a sleeve 411, a first bearing 412, a second bearing 413, a second bump 414, a transmission 5, a transmission motor 501, a driving gear 502, a first transmission gear 503, a first connecting shaft 504, a second transmission gear 505, a sector gear 506, a transmission rack 507, a fixed shaft 508, a third bearing 509, a rectangular block 510, a sliding rail groove 511, a connecting device 6, a third transmission gear 601, a second connecting shaft 602, a transmission bearing 603, a transmission shaft 604, a circular tube 605, a transmission rod 606, a fixing pin 607 and a support leg 7.

Detailed Description

The invention is further described below with reference to the figures and examples.

The embodiment of the invention provides a clove separating device for separating garlic bulbs based on extrusion force, which comprises a separating barrel 1, wherein the top and the bottom of the separating barrel 1 are hollow, a supporting rod 2 is fixedly connected to the inner wall of the separating barrel 1, a round block 3 is fixedly connected to one end, far away from the inner wall of the separating barrel 1, of the supporting rod 2, a clove separating device 4 is arranged inside the separating barrel 1, a transmission device 5 is arranged at the bottom of the separating barrel 1, the transmission device 5 is provided with a connecting device 6, and supporting legs 7 are fixedly connected to the bottom of the separating barrel 1.

The clove separating device 4 comprises a cylinder 401, a cross-shaped slot 402, a movable track block 403, a flexible peeling block 404, a fixed block 405, a connecting rod 406, a supporting spring 407, a first bump 408, a rotating shaft 409, a ring 410, a sleeve 411, a first bearing 412, a second bearing 413 and a second bump 414, wherein the inner wall of the separating barrel 1 is fixedly connected with the flexible peeling block 404, the cross section of the flexible peeling block 404 is trapezoidal, the number of the flexible peeling blocks 404 is eight, two flexible peeling blocks 404 are in a group, the four groups of flexible peeling blocks 404 are distributed at equal intervals, the flexible peeling blocks 404 are made of rubber materials, when the garlic cloves are squeezed and separated with garlic heads, the damage of the garlic cloves is prevented, the completeness of the garlic cloves is improved, when sharp angles of the garlic cloves are contacted with the garlic cloves through the trapezoidal shape of the flexible peeling blocks 404, the separation effect of the garlic cloves is improved, the cylinder 401 is arranged inside the separating barrel, the cross-shaped slot 402 is arranged at the top of the column 401, the inside of the cross-shaped slot 402 is connected with the movable track blocks 403 in a sliding manner, the number of the movable track blocks 403 is four, the four movable track blocks 403 are distributed in a cross shape, the movable track blocks 403 are provided with arc-shaped tracks, flat round garlic bulbs can be conveyed along the arc-shaped tracks, the flexible peeling blocks 404 can be conveniently contacted with the garlic bulbs, the movable track blocks 403 are arranged to enable the garlic bulbs to be uniformly distributed inside the arc-shaped tracks, the situation that the garlic bulbs are clamped excessively is prevented, the garlic bulb rotating shaft 409 is arranged inside the cross-shaped slot 402, the outer surface of the rotating shaft 409 is fixedly sleeved with the ring 410, the outer surface of the ring 410 is fixedly connected with the second bump 414, one end of the second bump 414, far away from the ring 410, is contacted with the first bump 408, one end of the first bump 408, far away from the second bump 414, one end of a connecting rod 406 far away from the first lug 408 is fixedly connected with the movable track block 403, the outer surface of the connecting rod 406 is movably connected with a fixed block 405, the outer surface of the connecting rod 406 is positioned between the fixed block 405 and the first lug 408 and movably sleeved with a supporting spring 407, the outer surface of a circular ring 410 is fixedly connected with the movable track block 403 through a second lug 414, the first lug 408 and the connecting rod 406, when the circular ring 410 drives the second lug 414 to rotate, the movable track block 403 can be pushed to move in the cross-shaped slot 402, the garlic on the movable track block 403 is pushed close to the flexible stripping block 404 to facilitate splitting of the garlic, the supporting spring 407 arranged between the first lug 408 and the fixed block 405 is arranged, the supporting force of the supporting spring 407 can rebound the first lug 408 and return the movable track block 403 to position, so that the first lug 408 is conveniently contacted with the circular ring 410, one end that ring 410 was kept away from to pivot 409 runs through cylinder 401 and fritter 3 and extends to the below of fritter 3, the inside and pivot 409 of sleeve 411 cup joints, the inner wall of sleeve 411 cup joints with pivot 409 through first bearing 412 fixedly, cylinder 401's bottom and sleeve 411 fixed connection, the one end that the fritter 3 was kept away from to sleeve 411 runs through the fritter 3 and extends to the below of fritter 3, sleeve 411's surface and second bearing 413 fixed socket joint, the outer lane and the fritter 3 fixed connection of second bearing 413.

The transmission device 5 comprises a transmission motor 501, a driving gear 502, a first transmission gear 503, a first connecting shaft 504, a second transmission gear 505, a sector gear 506, a transmission rack 507, a fixed shaft 508, a third bearing 509, a rectangular block 510 and a slide rail slot 511, wherein the bottom of the round block 3 is fixed with the transmission motor 501 through threads, the output end of the transmission motor 501 is fixedly connected with the driving gear 502, the toothed end of the driving gear 502 is meshed with the first transmission gear 503, the inner ring of the first transmission gear 503 is fixedly sleeved with the first connecting shaft 504, one end of the first connecting shaft 504, which is far away from the first transmission gear 503, is movably connected with the round block 3, the toothed end of the first transmission gear 503 is meshed with the second transmission gear 505, the inner ring of the second transmission gear 505 is fixedly sleeved with a rotating shaft 409, the outer wall of a sleeve 411, which is positioned below the round block 3, is fixedly connected with the sector gear 506, the rotating of the transmission motor 501 can drive the rotating shaft 409, the transmission motor 501 is used as the same power source, the manufacturing cost can be saved, the insection end of the sector gear 506 is meshed with the transmission rack 507, the transmission effect on the cylinder 401 can be improved by the meshing of the sector gear 506 and the transmission rack 507, the connecting device 6 is in transmission connection with the first transmission gear 503, the transmission rack 507 can be driven to move left and right circularly when the connecting device 6 operates, the transmission rack 507 is meshed with the sector gear 506 through the transmission rack 507, the transmission rack 507 can drive the sector gear 506, the sleeve 411 and the cylinder 401 to rotate regularly when the transmission rack 507 operates, the garlic is convenient to split, the splitting effect is improved, the front surface of the transmission rack 507 is fixedly connected with the fixed shaft 508, the bottom of the round block 3 is fixedly connected with the rectangular block 510 in front of the transmission rack 507, the slide rail groove 511 is arranged at the back of the rectangular block 510, one end of the fixed shaft 508 far away from the rectangular block 510 penetrates through the slide rail groove 511 and extends to the inside of the slide rail groove, the third bearing 509 is arranged in the slide rail groove 511, the outer ring of the third bearing 509 is in rolling connection with the slide rail groove 511, the inner ring of the third bearing 509 is fixedly sleeved with the fixing shaft 508, the inner wall of the slide rail groove 511 is in rolling connection with the third bearing 509, and the inner ring of the third bearing 509 is connected with the transmission rack 507 through the fixing shaft 508, so that the transmission rack 507 can be more stable in operation.

The connecting device 6 comprises a third transmission gear 601, a second connecting shaft 602, a transmission bearing 603, a transmission shaft 604, a circular tube 605, a transmission rod 606 and a fixing pin 607, the insection end of the first transmission gear 503 is meshed with the third transmission gear 601, the inner ring of the third transmission gear 601 is fixedly sleeved with the second connecting shaft 602, the second connecting shaft 602 is movably connected with the circular block 3, the front surface of the transmission gear 601 is fixedly connected with the outer ring of the transmission bearing 603, the inner ring of the transmission bearing 603 is fixedly sleeved with the transmission shaft 604, the outer ring of the transmission shaft 604 is movably sleeved with the circular tube 605, the outer surface of the circular tube 605 is fixedly connected with the transmission rod 606, and one end of the transmission rod 606, which is far away from the circular tube 605.

The working principle is as follows: when the garlic peeling machine is used, garlic bulbs can be thrown into the cross-shaped slot 402, the garlic bulbs roll down along the arc-shaped track from the movable track block 403, the transmission motor 501 is started, the rotation of the transmission motor 501 can drive the first transmission gear 503, the second transmission gear 505, the rotating shaft 409, the circular ring 410 and the second bump 414 to operate, the rotation of the second bump 414 can drive the first bump 408, the connecting rod 406 and the movable track block 403 to move, the garlic bulbs can be pushed between the two flexible peeling blocks 404 by the movement of the movable track block 403, the second bump 414 can be rebounded to the initial position by the elastic force of the supporting spring 407 arranged between the fixed block 405 and the first bump 408, and is connected with the connecting device 6 by the first transmission gear 503, the first transmission gear 503 is connected with the third transmission gear 601, the transmission bearing 603, the transmission shaft 604, the circular tube 605, and the second bump 414 can be rebounded to the initial position by the elastic, The transmission rod 606 and the fixing pin 607 are connected with the transmission rack 507, can drive the transmission rack 507 to do left-right circular motion when the transmission motor 501 runs, and is meshed with the sector gear 506 through the transmission rack 507, can drive the sleeve 411 and the cylinder 401 to regularly rotate clockwise and anticlockwise when the transmission rack 507 runs, can make the garlic inside the cross-shaped slot 402 contact with the flexible stripping block 404 when moving, can split the garlic, and the split garlic can fall from the bottom of the separating barrel 1.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A clove separating device for separating garlic bulbs based on extrusion force comprises a separating barrel (1), and is characterized in that: the top and the bottom of the separation barrel (1) are both hollow, a support rod (2) is fixedly connected to the inner wall of the separation barrel (1), a round block (3) is fixedly connected to one end, far away from the inner wall of the separation barrel (1), of the support rod (2), a valving device (4) is arranged inside the separation barrel (1), a transmission device (5) is arranged at the bottom of the separation barrel (1), a connecting device (6) is arranged on the transmission device (5), and support legs (7) are fixedly connected to the bottom of the separation barrel (1);

the split device (4) comprises a cylinder (401), a cross-shaped slot (402), a movable track block (403), a flexible stripping block (404), a fixed block (405), a connecting rod (406), a supporting spring (407), a first lug (408), a rotating shaft (409), a ring (410), a sleeve (411), a first bearing (412), a second bearing (413) and a second lug (414), wherein the inner wall of the separating barrel (1) is fixedly connected with the flexible stripping block (404), the cylinder (401) is arranged in the separating barrel (1), the cross-shaped slot (402) is arranged at the top of the cylinder (401), the movable track block (403) is slidably connected inside the cross-shaped slot (402), the rotating shaft (409) is arranged inside the cross-shaped slot (402), the outer surface of the rotating shaft (409) is fixedly sleeved with the ring (410), and the outer surface of the ring (410) is fixedly connected with the second lug (414), one end, far away from the circular ring (410), of the second bump (414) is in contact with the first bump (408), one end, far away from the second bump (414), of the first bump (408) is fixedly connected with the connecting rod (406), one end, far away from the first bump (408), of the connecting rod (406) is fixedly connected with the movable track block (403), the outer surface of the connecting rod (406) is movably connected with the fixing block (405), the outer surface of the connecting rod (406) is positioned between the fixing block (405) and the first bump (408) and movably sleeved with the supporting spring (407), one end, far away from the circular ring (410), of the rotating shaft (409) penetrates through the cylinder (401) and the circular block (3) and extends to the lower part of the circular block (3), the interior of the sleeve (411) is sleeved with the rotating shaft (409), the inner wall of the sleeve (411) is fixedly sleeved with the rotating shaft (409) through the first bearing (412), and the bottom of the cylinder (401) is fixedly connected with the sleeve (411), one end, far away from the round block (3), of the sleeve (411) penetrates through the round block (3) and extends to the lower portion of the round block (3), the outer surface of the sleeve (411) is fixedly sleeved with a second bearing (413), and the outer ring of the second bearing (413) is fixedly connected with the round block (3);

the number of the movable track blocks (403) is four, and the four movable track blocks (403) are distributed in a cross shape;

the cross section of each flexible stripping block (404) is trapezoidal, the number of the flexible stripping blocks (404) is eight, two flexible stripping blocks (404) form a group, and four groups of flexible stripping blocks (404) are distributed at equal intervals.

2. The clove separating apparatus for separating garlic bulbs based on the pressing force as claimed in claim 1, wherein: the transmission device (5) comprises a transmission motor (501), a driving gear (502), a first transmission gear (503), a first connecting shaft (504), a second transmission gear (505), a sector gear (506), a transmission rack (507), a fixed shaft (508), a third bearing (509), a rectangular block (510) and a slide rail groove (511), wherein the bottom of the circular block (3) is in threaded fixation with the transmission motor (501), the output end of the transmission motor (501) is fixedly connected with the driving gear (502), the insection end of the driving gear (502) is engaged with the first transmission gear (503), the inner ring of the first transmission gear (503) is fixedly sleeved with the first connecting shaft (504), one end of the first connecting shaft (504), which is far away from the first transmission gear (503), is movably connected with the circular block (3), the insection end of the first transmission gear (503) is engaged with the second transmission gear (505), the inner ring of the second transmission gear (505) is fixedly sleeved with the rotating shaft (409), the outer wall of the sleeve (411) is located below the round block (3) and is fixedly connected with the sector gear (506), the toothed end of the sector gear (506) is meshed with the transmission rack (507), the front face of the transmission rack (507) is fixedly connected with the fixed shaft (508), the bottom of the round block (3) is located in front of the transmission rack (507) and is fixedly connected with the rectangular block (510), the sliding rail groove (511) is formed in the back of the rectangular block (510), one end, far away from the rectangular block (510), of the fixed shaft (508 penetrates through the sliding rail groove (511) and extends into the sliding rail groove (511), the third bearing (509) is arranged in the sliding rail groove (511), and the inner ring of the third bearing (509) is fixedly sleeved with the fixed shaft (508).

3. The clove separating apparatus for separating garlic bulbs based on the pressing force as claimed in claim 2, wherein: the outer ring of the third bearing (509) is in rolling connection with the slide rail groove (511).

4. The clove separating apparatus for separating garlic bulbs based on the pressing force as claimed in claim 2, wherein: the connecting device (6) comprises a third transmission gear (601), a second connecting shaft (602), a transmission bearing (603), a transmission shaft (604), a circular tube (605), a transmission rod (606) and a fixing pin (607), the insection end of the first transmission gear (503) is meshed with a third transmission gear (601), the inner ring of the third transmission gear (601) is fixedly sleeved with the second connecting shaft (602), the second connecting shaft (602) is movably connected with the round block (3), the front surface of the transmission gear (601) is fixedly connected with the outer ring of the transmission bearing (603), the inner ring of the transmission bearing (603) is fixedly sleeved with the transmission shaft (604), the outer ring of the transmission shaft (604) is movably sleeved with the circular tube (605), the outer surface of the circular tube (605) is fixedly connected with the transmission rod (606), and one end, far away from the circular tube (605), of the transmission rod (606) is movably hinged with the transmission rack (507) through a fixing pin (607).