CN110635634B

CN110635634B - Waste motor copper wire remover

Info

Publication number: CN110635634B
Application number: CN201910958031.0A
Authority: CN
Inventors: 不公告发明人
Original assignee: Nanjing Lingque Intelligent Manufacturing Co Ltd
Current assignee: Nanjing Lingque Intelligent Manufacturing Co Ltd
Priority date: 2019-10-10
Filing date: 2019-10-10
Publication date: 2021-04-23
Anticipated expiration: 2039-10-10
Also published as: CN110635634A

Abstract

The invention belongs to the technical field of waste motor copper wire separation, and particularly relates to a waste motor copper wire remover. The technical problem to be solved is how to provide a waste motor copper wire remover which can fix a motor and can be quickly detached. A waste motor copper wire remover comprises a workbench, a mounting plate, a U-shaped sliding rail, a sliding block and the like; the right side of the top of the workbench is provided with a mounting plate, and the mounting plate is provided with a U-shaped sliding rail. According to the waste motor fixing device, waste motors can be fixed by using the clamping adjusting mechanism, the fixing clamping hooks and the rotating clamping hooks can be matched to fix and pull out copper coils by moving the movable push rod and rotating the oscillating rod, the waste copper coils can be completely separated from the fixing clamping hooks and the rotating clamping hooks by pushing the movable push rod, the protruding part of the cam can be used for striking the top plate by stepping on the pedal, the top plate drives the oscillating plate to push away the waste copper coils, and meanwhile, the clamping adjusting device is driven to rotate to adjust the angle, so that the waste motors can be conveniently detached next time.

Description

Waste motor copper wire remover

Technical Field

The invention belongs to the technical field of waste motor copper wire separation, and particularly relates to a waste motor copper wire remover.

Background

Since the circulation economy is advocated in this century, the active significance of the regenerated metal industry in the macroscopic aspect is gradually recognized and accepted by people, and compared with the metal mining and smelting, the metal resource regeneration energy-saving emission-reduction benefits are very obvious. However, in the process of metal resource regeneration, if the secondary pollution problem cannot be properly handled and the pollution level is controlled within a reasonable acceptable range, the normal development of the metal resource regeneration industry will be seriously affected.

With the increasing awareness of environmental protection in the whole society, the regeneration treatment of waste materials has become increasingly important. The motor which is discarded is recycled and treated, and the discarded motor contains copper, aluminum, iron, stainless steel, plastics, dust and other substances.

The most difficult link when the waste motor is dismantled is just to take out the coil from the notch of stator, and the mode of taking out of copper coil at present generally is artifical manual pulling out, and the motor is not fixed directly to be pulled out easily and squints, and is easy injured, and wastes time and energy, consequently designs a waste motor copper line detacher that can be fixed to the motor, can dismantle fast.

Disclosure of Invention

In order to overcome the defects that the prior copper coil is generally pulled out manually, a motor is not fixed and is pulled out directly, the motor is easy to shift and is easy to be injured, and the motor wastes time and labor, the invention has the technical problems that: the waste motor copper wire remover can fix a motor and can be quickly detached.

The technical implementation scheme of the invention is as follows: a waste motor copper wire remover comprises a workbench, a mounting plate, a U-shaped slide rail, slide blocks, a push rod, guide wheels, a clamping adjusting mechanism, a swing rod, a first pull rope and a pull rod, wherein the mounting plate is arranged on the right side of the top of the workbench, the U-shaped slide rail is arranged on the mounting plate, the slide blocks are arranged on two sides in the U-shaped slide rail in a sliding manner, the push rod is arranged between the two slide blocks, a clamping mechanism is arranged on the lower side of the push rod and used for clamping a waste copper coil, the guide wheels are arranged on the push rod, the clamping adjusting mechanism is arranged on the left side of the top of the workbench and used for fixing a waste motor, a transmission device is arranged on the workbench and used for driving the circumferential transmission of the clamping adjusting mechanism, a swing rod is rotatably arranged on the upper end of the push rod, the swing rod is connected with the, the push rod is provided with a pull rod.

Further, clamping mechanism is including the mounting disc, the sliding shaft, fixed trip, the rotation trip, first elastic component and swing depression bar, the catch bar lower part is provided with the mounting disc, the eccentric position of mounting disc front side is opened there is the arc wall, the slidingtype is provided with the sliding shaft in the arc wall, the catch bar bottom is provided with fixed trip, the last rotation type of fixed trip is provided with the rotation trip, be provided with first elastic component between rotation trip and the catch bar, the catch bar downside is rotated and is provided with the swing depression bar, swing depression bar one end is located and rotates trip upper portion, the swing depression bar other end is opened there is a word groove, a word groove is connected with the sliding shaft slidingtype.

Further, chucking adjustment mechanism is including having annular slide rail, the sliding block, the annular ring, the ring gear, fixed snap ring, remove the snap ring, rotatory screw rod, elastic block and kelly, workstation top left side is provided with annular slide rail, the gliding style is provided with the sliding block on the annular slide rail, the sliding block right side is provided with the annular ring, be provided with the ring gear on the annular ring, gear and ring gear meshing, the annular ring right side is provided with fixed snap ring, the rotary type is provided with the removal snap ring on the fixed snap ring, rotatory screw rod has closed on the removal snap ring soon, the rotatory screw rod lower extreme is provided with the elastic block, it is provided with the kelly to remove the snap ring lower part, be provided with.

Further, transmission is including the bearing frame, the apparatus further comprises a rotating shaft, a gear, the ratchet cell body, the axis of rotation, the pawl, the footboard, second elastic component and fixed block, workstation bottom left side is provided with the bearing frame, be provided with the pivot on the bearing frame, pivot one end is provided with the gear, gear and chucking adjustment mechanism cooperation, the pivot other end is provided with the ratchet cell body, workstation bottom right side is provided with the axis of rotation, the axis of rotation left end is provided with the pawl, pawl and ratchet cell body cooperation, the axis of rotation right-hand member passes the workstation and is connected with the footboard, the workstation right-hand member is provided with the fixed block, be provided with.

The movable lifting device comprises a guide sleeve, a movable push rod, a third elastic piece, a movable plate, a guide wheel, a top block, a second pull rope, a first clamping hook and a second clamping hook, wherein the guide sleeve is arranged on a fixed clamping hook, the movable push rod is arranged in the guide sleeve, the third elastic piece is arranged between the movable push rod and the guide sleeve, a square groove is formed in a workbench, the top block is arranged in the square groove, the movable plate is arranged on the right side of the movable push rod, the lower end of the movable plate is located in the square groove, the first clamping hook is arranged on the lower portion of a mounting disc, the second clamping hook is arranged on the movable plate, the first clamping hook is matched with the second clamping hook, the guide wheel is arranged on the first clamping hook, the second pull rope is connected to a sliding shaft, and the second pull.

Further, the automatic feeding device comprises a cam, a swinging plate and a top plate, wherein the cam is arranged on the rotating shaft, a square groove is formed in the workbench, the swinging plate is arranged in the square groove of the workbench in a rotating mode, the top plate is arranged on the lower side of the swinging plate, and the cam is located on the lower side of the swinging plate.

Further, the device comprises an arc-shaped sliding rail and a sliding shaft, wherein the arc-shaped sliding rail is arranged on the upper portion of the pushing rod, the sliding shaft is arranged on the arc-shaped sliding rail and connected with the oscillating rod, and a circular groove is formed in the arc-shaped sliding rail and matched with the sliding shaft.

The invention has the beneficial effects that: the waste motor can be fixed by using the clamping adjusting mechanism, the fixed clamping hook and the rotating clamping hook can be matched to fixedly pull out the copper coil by moving the movable push rod and rotating the oscillating rod, the waste copper coil can be completely separated from the fixed clamping hook and the rotating clamping hook by pushing the movable push rod, the protruding part of the cam can be hit on the top plate by stepping on the pedal, the top plate drives the oscillating plate to push away the waste copper coil, and meanwhile, the clamping adjusting device is driven to rotate to adjust the angle, so that the waste motor can be conveniently detached next time.

Drawings

Fig. 1 is a schematic front view of the present invention.

Fig. 2 is a schematic view of a main view enlarged structure of the present invention a.

Fig. 3 is a right-side structural schematic view of the chucking adjustment mechanism of the present invention.

FIG. 4 is a right enlarged view of the structure of the present invention B.

Fig. 5 is a partial right view structural diagram of the present invention.

In the above drawings: 1: workbench, 2: mounting plate, 3: u-shaped slide rail, 4: a slide block, 5: push rod, 6: mounting plate, 7: arc-shaped groove, 8: sliding shaft, 9: fixing hook, 10: rotating the hook, 11: first elastic member, 12: swing lever, 13: guide wheel, 14: chuck adjusting mechanism, 141: annular slide rail, 142: sliding block, 143: annular ring, 144: ring gear, 145: fixing snap ring, 146: moving snap ring, 147: rotating screw, 148: elastic block, 149: jamming rod, 15: bearing seat, 16: rotating shaft, 17: gear, 18: ratchet groove, 19: rotating shaft, 20: pawl, 21: pedal, 22: second elastic member, 23: fixed block, 24: swing lever, 25: first cord, 26: a pull rod, 27: guide sleeve, 28: moving push rod, 29: third elastic member, 30: moving plate, 301: top block, 31: guide wheel, 32: second cord, 33: first hook, 34: second hook, 35: cam, 36: swing plate, 37: top plate, 38: arc slide rail, 39: slide shaft, 40: a circular groove.

Detailed Description

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

Example 1

A waste motor copper wire remover is shown in figures 1-5 and comprises a workbench 1, a mounting plate 2, a push rod 5, a guide wheel 13, a clamping adjusting mechanism 14, a swing rod 24, a first pull rope 25 and a pull rod 26, wherein the mounting plate 2 is arranged on the right side of the top of the workbench 1, a U-shaped slide rail 3 is arranged on the mounting plate 2, slide blocks 4 are arranged on two sides in the U-shaped slide rail 3 in a sliding manner, the push rod 5 is arranged between the two slide blocks 4, a clamping mechanism is arranged on the lower side of the push rod 5 and used for clamping a waste copper coil, the guide wheel 13 is arranged on the push rod 5, the clamping adjusting mechanism 14 is arranged on the left side of the top of the workbench 1, the clamping adjusting mechanism 14 is used for fixing a waste motor, a transmission device is arranged on the workbench 1 and used for driving the clamping adjusting mechanism 14 to perform circumferential transmission, the swing rod 24, the swing lever 24 is connected with a first pull rope 25, the first pull rope 25 is connected with the right end of the swing pressure lever 12 by bypassing the guide wheel 13, and the push rod 5 is provided with a pull rod 26.

Clamping mechanism is including mounting disc 6, sliding shaft 8, fixed trip 9, rotation trip 10, first elastic component 11 and

swing depression bar

12, 5 lower parts of catch bar are provided with mounting disc 6, the eccentric position of 6 front sides of mounting disc is opened there is arc wall 7, the slidingtype is provided with sliding shaft 8 in the arc wall 7, catch bar 5 bottom is provided with fixed trip 9, the last rotation type of fixed trip 9 is provided with rotates trip 10, it is provided with first elastic component 11 to rotate between trip 10 and the catch bar 5, first elastic component 11 is extension spring, 5 downside rotations of catch bar are provided with swing depression bar 12, swing depression bar 12 one end is located and rotates trip 10 upper portion, the swing depression bar 12 other end is opened there is a word groove, a word groove and 8 sliding type connections of sliding shaft.

The clamping adjusting mechanism 14 comprises an annular slide rail 141, a slide block 142, an annular ring 143, a gear ring 144, a fixed snap ring 145, a movable snap ring 146, a rotary screw 147, an elastic block 148 and a clamping rod 149, the annular slide rail 141 is arranged on the left side of the top of the workbench 1, the slide block 142 is arranged on the annular slide rail 141 in a sliding mode, the annular ring 143 is arranged on the right side of the slide block 142, the gear wheel 17 is meshed with the gear ring 144, the fixed snap ring 145 is arranged on the right side of the annular ring 143, the movable snap ring 146 is arranged on the fixed snap ring 145 in a rotating mode, the rotary screw 147 is screwed on the movable snap ring 146, the elastic block 148 is arranged at the lower end of the rotary screw 147, the clamping rod 149 is arranged on the lower portion of the movable.

Transmission is including bearing frame 15, pivot 16, gear 17, ratchet cell body 18, axis of rotation 19, pawl 20, footboard 21, second elastic component 22 and fixed block 23, 1 bottom left side of workstation is provided with bearing frame 15, be provided with pivot 16 on the bearing

frame

15, 16 one end of pivot is provided with gear 17, gear 17 and chucking adjustment mechanism 14 cooperation, the 16 other end of pivot is provided with ratchet cell body 18, 1 bottom right side of workstation is provided with axis of

rotation

19, 19 left ends of axis of rotation are provided with pawl 20, pawl 20 and ratchet cell body 18 cooperation, 19 right-hand members of axis of rotation pass workstation 1 and are connected with footboard 21, 1 right-hand members of workstation are provided with fixed block 23, be provided with second elastic component 22 between fixed block 23 and the footboard 21, second elastic component 22 is compression spring.

When the device needs to be used, the movable clamp ring 146 on the fixed clamp ring 145 is rotated to be opened, then a worker penetrates the waste device motor with two sides being pried open to pass through the annular slide rail 141 and the annular ring 143, then the movable clamp ring 146 is rotated to be reset, the clamp rod 149 is clamped into the clamp groove, the rotary screw 147 drives the elastic block 148 to clamp and fix the waste device motor by rotating the rotary screw 147, then the worker moves the push rod 5 leftwards, the push rod 5 drives all parts on the push rod 5 to move leftwards together, the fixed clamp hook 9 is inserted into the copper coil on the lower side of the waste motor, then the swing rod 24 is pressed downwards, the swing rod 24 drives the right side of the swing pressure rod 12 to move upwards through the first pull rope 25, the left side of the swing pressure rod 12 presses downwards to rotate the clamp hook 10, the rotation clamp hook 10 moves downwards to be inserted into the upper part of the copper coil on the lower side of the waste motor, the first, the push rod 5 moves to drive all parts on the push rod 5 to move rightwards together, the fixed clamping hook 9 and the rotating clamping hook 10 drive the waste copper coil to pull the waste motor, when the copper coil leaves the waste motor, the swinging rod 24 can be pulled upwards, the first elastic piece 11 resets to drive the rotating clamping hook 10 to reset, and at the moment, a worker can take out the copper coil. When needing to carry out the extraction of copper coil once more, the staff steps on footboard 21, second elastic component 22 is compressed, footboard 21 anticlockwise rotates through axis of rotation 19 and drives pawl 20 anticlockwise rotation, pawl 20 drives ratchet cell body 18 anticlockwise rotation, ratchet cell body 18 drives gear 17 anticlockwise rotation through pivot 16, gear 17 drives ring gear 144 clockwise rotation, at this moment, abandonment coil is rotated to the downside by the copper coil that is not extracted, loosen footboard 21, second elastic component 22 drives footboard 21 and resets, footboard 21 drives axis of rotation 19 and drives pawl 20 and reset, pawl 20 idles in ratchet cell body 18, the action alright realize grabbing of copper coil before the staff repeats this moment, this device simple structure, and the operation of being convenient for.

Example 2

Referring to fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5, a detailed description of a further step of the present invention is provided, which further includes a guide sleeve 27, a moving push rod 28, a third elastic member 29, a moving plate 30, a guide wheel 31, a top block 301, a second pull rope 32, a first hook 33 and a second hook 34 on the basis of embodiment 1, the guide sleeve 27 is disposed on the fixed hook 9, the moving push rod 28 is disposed in the guide sleeve 27, the third elastic member 29 is disposed between the moving push rod 28 and the guide sleeve 27, the third elastic member 29 is a compression spring, a square groove is formed on the table 1, the top block 301 is disposed in the square groove, the moving plate 30 is disposed on the right side of the moving push rod 28, the lower end of the moving plate 30 is located in the square groove, the first hook 33 is disposed on the lower portion of the mounting plate 6, the second hook 34 is disposed on the moving plate 30, the first hook 33 is engaged with the second hook 34, the first hook 33 is provided with a guide wheel 31, the sliding shaft 8 is connected with a second rope 32, and the second rope 32 is connected with the moving plate 30 by bypassing the guide wheel 31.

When the swing rod 24 drives the right side of the swing pressure rod 12 to move upwards through the first pull rope 25, the swing pressure rod 12 drives the moving plate 30 to move rightwards through the second pull rope 32, the moving plate 30 drives the moving push rod 28 to move rightwards, the third elastic piece 29 is compressed, the first clamping hook 33 is matched with the second clamping hook 34, the fixed clamping hook 9 and the rotating clamping hook 10 pull the waste copper coil out of the waste motor, when the copper coil leaves the waste motor, the swing rod 24 can be pulled upwards, the first elastic piece 11 is reset to drive the rotating clamping hook 10 to reset, a worker continues to pull the push rod 5 to move rightwards, the ejector block 301 abuts against the moving plate 30, the first clamping hook 33 is separated from the second clamping hook 34, the third elastic piece 29 drives the moving push rod 28 to push the waste copper coil to be separated from the fixed clamping hook 9 and the rotating clamping hook 10, and the worker can conveniently process the waste copper coil.

The rotary table is characterized by further comprising a cam 35, a swinging plate 36 and a top plate 37, the cam 35 is arranged on the rotating shaft 19 in a key connection mode, a square groove is formed in the working table 1, the swinging plate 36 is rotatably arranged in the square groove of the working table 1, the top plate 37 is arranged on the lower side of the swinging plate 36, and the cam 35 is located on the lower side of the swinging plate 36.

The staff steps on footboard 21, and footboard 21 drives the axis of rotation 19 rotatory, drives cam 35 rotatory then, and roof 37 is hit to cam 35 convex part, and roof 37 drives swing board 36 upward movement, and abandonment copper coil will slide to the rear side, this device simple structure, the operation of being convenient for.

The push rod type automatic lifting device is characterized by further comprising an arc-shaped slide rail 38 and a slide shaft 39, the arc-shaped slide rail 38 is arranged on the upper portion of the push rod 5, the slide shaft 39 is arranged on the arc-shaped slide rail 38 in a sliding mode, the slide shaft 39 is connected with the swing rod 24 through bolts, a circular groove 40 is formed in the arc-shaped slide rail 38, and the circular groove 40 is matched with the slide shaft 39.

Swinging arms 24 swings downwards and drives first stay cord 25 upward movement, and smooth axle 39 can block into circular slot 40, realizes swinging arms 24's fixed then, and at this moment, fixed trip 9 catches on fixedly with abandonment copper coil with the cooperation of rotation trip 10, does benefit to staff's pulling catch bar 5, this device simple structure, the operation of being convenient for.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the protection scope of the present invention, and although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. The utility model provides a waste motor copper line detacher, is provided with mounting panel (2) including workstation (1), mounting panel (2), U-shaped slide rail (3), slider (4) and catch bar (5) on workstation (1) top right side, be provided with U-shaped slide rail (3) on mounting panel (2), both sides slidingtype is provided with slider (4) in U-shaped slide rail (3), is provided with catch bar (5), characterized by between two sliders (4): the waste copper coil clamping device is characterized by further comprising a guide wheel (13), a clamping adjusting mechanism (14), an oscillating rod (24), a first pull rope (25) and a pull rod (26), wherein a clamping mechanism is arranged on the lower side of the push rod (5) and used for clamping a waste copper coil, the guide wheel (13) is arranged on the push rod (5), the clamping adjusting mechanism (14) is arranged on the left side of the top of the workbench (1), the clamping adjusting mechanism (14) is used for fixing a waste motor, a transmission device is arranged on the workbench (1) and used for driving the clamping adjusting mechanism (14) to perform circumferential transmission, the oscillating rod (24) is rotatably arranged at the upper end of the push rod (5), the oscillating rod (24) is connected with the first pull rope (25), the first pull rope (25) bypasses the guide wheel (13) and is connected with the right end of the oscillating pressure rod (12), and the pull rod (26) is; the clamping mechanism comprises a mounting disc (6), a sliding shaft (8), a fixed clamping hook (9), a rotating clamping hook (10), a first elastic piece (11) and a swinging pressure lever (12), the lower part of the push rod (5) is provided with a mounting disc (6), an arc-shaped groove (7) is formed in the eccentric position of the front side of the mounting disc (6), a sliding shaft (8) is arranged in the arc-shaped groove (7) in a sliding mode, a fixing clamping hook (9) is arranged at the bottom of the push rod (5), a rotating clamping hook (10) is arranged on the fixing clamping hook (9) in a rotating mode, a first elastic piece (11) is arranged between the rotating clamping hook (10) and the push rod (5), a swinging pressure rod (12) is arranged on the lower side of the push rod (5) in a rotating mode, one end of the swinging pressure rod (12) is located on the upper portion of the rotating clamping hook (10), a linear groove is formed in the other end of the swinging pressure rod (.

2. The waste motor copper wire remover as claimed in claim 1, wherein: the clamping adjusting mechanism (14) comprises an annular slide rail (141), a slide block (142), an annular ring (143), a gear ring (144), a fixed snap ring (145), a movable snap ring (146), a rotating screw (147), an elastic block (148) and a clamping rod (149), the annular slide rail (141) is arranged on the left side of the top of the workbench (1), the slide block (142) is arranged on the annular slide rail (141) in a sliding mode, the annular ring (143) is arranged on the right side of the slide block (142), the gear ring (144) is arranged on the annular ring (143), the gear (17) is meshed with the gear ring (144), the fixed snap ring (145) is arranged on the right side of the annular ring (143), the movable snap ring (146) is arranged on the fixed snap ring (145) in a rotating mode, the rotating screw (147) is screwed on the movable snap ring (146), the elastic block (148) is arranged, the fixed snap ring (145) is provided with a clamping groove, and the clamping rod (149) is matched with the clamping groove.

3. The waste motor copper wire remover as claimed in claim 2, wherein: the transmission device comprises a bearing seat (15), a rotating shaft (16), a gear (17), a ratchet wheel groove body (18), a rotating shaft (19), a pawl (20), a pedal (21), a second elastic piece (22) and a fixed block (23), the left side of the bottom of the workbench (1) is provided with a bearing seat (15), the bearing seat (15) is provided with a rotating shaft (16), one end of the rotating shaft (16) is provided with a gear (17), the gear (17) is matched with a clamping adjusting mechanism (14), the other end of the rotating shaft (16) is provided with a ratchet groove body (18), the right side of the bottom of the workbench (1) is provided with a rotating shaft (19), the left end of the rotating shaft (19) is provided with a pawl (20), the pawl (20) is matched with the ratchet groove body (18), the right end of the rotating shaft (19) penetrates through the workbench (1) and is connected with a pedal (21), the right end of the workbench (1) is provided with a fixed block (23), and.

4. The waste motor copper wire remover as claimed in claim 3, wherein: the device is characterized by further comprising a guide sleeve (27), a movable push rod (28), a third elastic piece (29), a movable plate (30), a guide wheel (31), a top block (301), a second pull rope (32), a first clamping hook (33) and a second clamping hook (34), wherein the guide sleeve (27) is arranged on the fixed clamping hook (9), the movable push rod (28) is arranged in the guide sleeve (27), the third elastic piece (29) is arranged between the movable push rod (28) and the guide sleeve (27), a square groove is formed in the workbench (1), the top block (301) is arranged in the square groove, the movable plate (30) is arranged on the right side of the movable push rod (28), the lower end of the movable plate (30) is located in the square groove, a first clamping hook (33) is arranged on the lower portion of the mounting disc (6), the second clamping hook (34) is arranged on the movable plate (30), the first clamping hook (33) is matched with the second clamping hook (34), the guide wheel (31) is arranged, the sliding shaft (8) is connected with a second pull rope (32), and the second pull rope (32) is connected with the moving plate (30) by bypassing the guide wheel (31).

5. The waste motor copper wire remover as claimed in claim 4, wherein: the automatic swinging device is characterized by further comprising a cam (35), a swinging plate (36) and a top plate (37), wherein the cam (35) is arranged on the rotating shaft (19), a square groove is formed in the workbench (1), the swinging plate (36) is rotatably arranged in the square groove of the workbench (1), the top plate (37) is arranged on the lower side of the swinging plate (36), and the cam (35) is located on the lower side of the swinging plate (36).

6. The waste motor copper wire remover as claimed in claim 5, wherein: the push rod type automatic lifting device is characterized by further comprising an arc-shaped sliding rail (38) and a sliding shaft (39), the arc-shaped sliding rail (38) is arranged on the upper portion of the push rod (5), the sliding shaft (39) is arranged on the arc-shaped sliding rail (38), the sliding shaft (39) is connected with the swinging rod (24), a circular groove (40) is formed in the arc-shaped sliding rail (38), and the circular groove (40) is matched with the sliding shaft (39).