An aerated concrete block surface groove pressing anti-skid treatment device

Abstract

The application belongs to the technical field of construction material pretreatment, and discloses an air entrained concrete block surface groove pressing anti-skid treatment device, which comprises a support, a supporting structure is fixedly installed at the top of the support, and a motor is fixedly installed on one side of the support. The stable structure and the cleaning assembly are matched, the output shaft of the motor and the caterpillar belt drive the horizontal shaft to rotate, the gear is driven to rotate in the process of the rotation of the horizontal shaft, the gear has two groups and is distributed on the outer surface of the horizontal shaft and the two sides of the reverse roller shaft, the two groups of reverse roller shafts are engaged, the gear rotates to drive the reverse roller shaft and the slotting block to rotate in the opposite direction, and the structure enables the spring to more quickly open the grooves on the top and the bottom of the concrete block, further improves the working efficiency of the device, and reduces the labor intensity of workers.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of construction material pretreatment, and particularly relates to a surface groove anti-skid treatment device for aerated concrete blocks. BACKGROUND

[0002] The aerated concrete block is a kind of building material with light weight, porosity, heat preservation, heat insulation and good fire resistance, and has a certain degree of anti-seismic capacity, is widely used in high-rise frame structure buildings, is a kind of excellent new building material, and has many advantages such as environmental protection, and the like, is mainly made of fly ash, quicklime, cement, gypsum, aluminum paste and water, and is produced by mixing chemical reactions according to fixed proportions, before the aerated concrete block is built, the block arrangement drawing is drawn according to the plane and elevation drawing of the building, the skin number rod is arranged at the corner of the wall, the skin number and the block height are drawn on the skin number rod, the parallel line is drawn between the opposite block upper lines, the blocks are built according to the parallel line, and the two blocks are stacked by cement.

[0003] In the stacking process, if the stacking height is high, the top and the bottom need to be slotted, and the cement enters the groove, so as to prevent the possibility of sliding in the stacking process, in the prior art, the workers usually use tools to open the groove at the top and the bottom, so that the cement enters the groove, and the building is more stable and firm, but this slotting method is backward, which indirectly increases the labor intensity of the workers and reduces the construction progress, and therefore, the surface groove anti-skid treatment device for aerated concrete blocks is provided. SUMMARY

[0004] To solve the problems in the background art, the surface groove anti-skid treatment device for aerated concrete blocks is provided, which solves the problems in the prior art that when the stacking height is high, the workers usually use tools to open the groove at the top and the bottom of the aerated concrete block, the slotting method is backward, which indirectly increases the labor intensity of the workers and reduces the construction progress.

[0005] To achieve the above object, the application provides the following technical scheme: a surface groove anti-skid treatment device for aerated concrete blocks, comprising a support, a support structure is fixedly installed at the top of the support, a motor is fixedly installed on one side of the support, two stabilizing structures are movably installed on the front and rear sides of the inner wall of the support, a transmission structure is fixedly sleeved on the outer surface of the support structure, a cleaning assembly is fixedly installed at the top of the support structure, and a slotting assembly is movably installed in the support structure.

[0006] The cleaning assembly comprises a bellows, one side of the bellows is fixedly provided with a connecting plate, two reciprocating round shafts are movably penetrated through the front and rear ends of one side of the connecting plate, two support frames are movably sleeved on the left and right ends of the outer surfaces of the two reciprocating round shafts, and two bevel gears are fixedly sleeved on the left and right sides of the two reciprocating round shafts.

[0007] Preferably, the stabilizing structure comprises a cross plate and a reel, one side of the cross plate is movably installed on the inner wall of the support, the inner wall of the support is provided with a movable groove, the reel is movably arranged in the movable groove, a spring telescopic rod is fixedly installed in the movable groove, a sliding block is movably installed on one side of the reel, a caterpillar belt is fixedly sleeved on the outer surface of the sliding block, and the other end of the inner wall of the caterpillar belt is fixedly sleeved on the output shaft of the motor.

[0008] Preferably, the support structure comprises a spring, the spring is fixedly installed on the bottom of the support, a support plate is fixedly installed on the top of the spring, two transverse shafts are movably penetrated through the front and rear ends of one side of the cross plate, and one side of each of the two transverse shafts is movably installed on the front and rear ends of one side of the cross plate.

[0009] Preferably, the spring has four and is distributed at the four corners of the bottom of the support plate, the support plate has two and is distributed at the upper and lower ends of the inner support, the transverse shaft has four and is divided into two groups, and the upper and lower ends of the inner wall of the support are respectively distributed in each group of the transverse shaft, the upper end of the transverse shaft is installed on the inner wall of the support, and the lower end of the transverse shaft is movably installed on one side of the cross plate.

[0010] Preferably, the bottom of the bellows is fixedly installed on the top of the support plate, two curved grooves are formed in the outer surfaces of the two reciprocating round shafts, the front and rear ends of one side of the connecting plate are movably sleeved on the outer surfaces of the two reciprocating round shafts through the two curved grooves, and the outer surfaces of each group of the bevel gears are in meshing relationship.

[0011] Preferably, the transmission structure comprises an outer caterpillar belt, a plurality of locking blocks are equidistantly hinged on the outer surface of the outer caterpillar belt, an inner caterpillar belt is fixedly sleeved on the inner wall of the outer caterpillar belt, and a plurality of strong magnets are equidistantly fixedly installed on the outer surface of the inner caterpillar belt.

[0012] Preferably, the front and rear ends of the inner caterpillar belt are fixedly sleeved on the outer surfaces of each group of the transverse shafts, the bottoms of the locking blocks are made of magnets, the bottoms of the locking blocks and the top of the strong magnet have the same magnetic pole, the transmission structure has four and is divided into two groups, and each group of the transmission structure is fixedly sleeved on the front and rear ends of the outer surface of the transverse shaft.

[0013] Preferably, the slotting assembly comprises a reverse roller, the outer surface of the reverse roller is equidistantly fixedly provided with a plurality of slotting blocks, and the front and rear sides of the reverse roller are fixedly provided with two gears respectively.

[0014] Preferably, the top of the support plate is provided with a working groove, the gears are four in number and are arranged in two groups, the other side of each group of gears is movably arranged on the inner wall of the working groove, and the outer surfaces of each group of gears are in engagement.

[0015] Preferably, the slotting assembly and the working groove are four in number and are arranged in two groups, each group of slotting assembly and working groove is arranged on the top of two support plates, the middle part of the outer surface of the transverse shaft is movably penetrated into the inside of the working groove, and the middle part of the gear is fixedly arranged on the outer surface of the transverse shaft.

[0016] Compared with the prior art, the present application has the following advantages:

[0017] The present application is characterized in that the stable structure and the cleaning assembly are arranged in cooperation, the output shaft of the motor and the track drive the transverse shaft to rotate, the gears are driven to rotate in the process of rotation of the transverse shaft, the gears are arranged in two groups and are arranged on the outer surface of the transverse shaft and the two sides of the reverse roller, the two groups of reverse rollers are in engagement, the gears are driven to rotate, the reverse rollers and the slotting blocks are driven to rotate in the opposite direction, and the spring can quickly open the pressure groove on the top and the bottom of the concrete block.

[0018] The present application is characterized in that the stable structure and the cleaning assembly are arranged in cooperation, the output shaft of the motor and the track drive the transverse shaft to rotate, the gears are driven to rotate in the process of rotation of the transverse shaft, the gears are arranged in two groups and are arranged on the outer surface of the transverse shaft and the two sides of the reverse roller, the two groups of reverse rollers are in engagement, the gears are driven to rotate, the reverse rollers and the slotting blocks are driven to rotate in the opposite direction, and the spring can quickly open the pressure groove on the top and the bottom of the concrete block.

[0019] The present application is characterized in that the stable structure and the cleaning assembly are arranged in cooperation, the output shaft of the motor and the track drive the transverse shaft to rotate, the gears are driven to rotate in the process of rotation of the transverse shaft, the gears are arranged in two groups and are arranged on the outer surface of the transverse shaft and the two sides of the reverse roller, the two groups of reverse rollers are in engagement, the gears are driven to rotate, the reverse rollers and the slotting blocks are driven to rotate in the opposite direction, and the spring can quickly open the pressure groove on the top and the bottom of the concrete block. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 The schematic diagram of the appearance structure of the present application;

[0021] Figure 2 The schematic diagram of the cooperation between the motor and the stabilizing structure of the present application;

[0022] Figure 3 The schematic diagram of the cooperation between the stabilizing structure and the supporting structure of the present application;

[0023] Figure 4 The schematic diagram of the cooperation between the supporting structure and the cleaning assembly of the present application;

[0024] Figure 5 The schematic diagram of the cooperation between the transverse shaft and the cleaning assembly of the present application;

[0025] Figure 6 The schematic diagram of the cooperation between the stabilizing structure and the cleaning assembly of the present application;

[0026] Figure 7 The schematic diagram of the cooperation between the connecting plate and the reciprocating round shaft of the present application;

[0027] Figure 8 The schematic diagram of the cooperation between the supporting structure and the slotted assembly of the present application;

[0028] Figure 9 The schematic diagram of the cooperation between the transmission structure and the supporting structure of the present application;

[0029] Figure 10 The schematic diagram of the cooperation between the main body of the transmission structure and the present application.

[0030] In the figure: 1, support; 2, motor; 3, stabilizing structure; 301, sliding block; 302, spring telescopic rod; 303, reel; 304, track; 305, transverse plate; 4, transmission structure; 401, outer track; 402, inner track; 403, locking block; 404, strong magnet; 5, supporting structure; 501, supporting plate; 502, transverse shaft; 503, spring; 6, slotted assembly; 601, gear; 602, reverse roller; 603, slotted block; 7, cleaning assembly; 701, reciprocating round shaft; 702, supporting frame; 703, helical gear; 704, connecting plate; 705, bellows. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0032] As Figures 1 to 10 shown, the application provides an aerated concrete block surface groove anti-skid processing device, including support 1, the top of support 1 is fixedly installed with support structure 5, one side of support 1 is fixedly installed with motor 2, the front and back of the inner wall of support 1 is respectively movably installed with two stabilizing structures 3, the outer surface of support structure 5 is fixedly sleeved with transmission structure 4, the top of support structure 5 is fixedly installed with cleaning assembly 7, the inside of support structure 5 is movably installed with grooving assembly 6;

[0033] Cleaning assembly 7 includes corrugated pipe 705, one side of corrugated pipe 705 is fixedly installed with connecting plate 704, the front and back of one side of connecting plate 704 is respectively movably penetrated with two reciprocating round shafts 701, the left and right ends of the outer surface of two reciprocating round shafts 701 is respectively movably sleeved with two support frames 702, the left and right sides of two reciprocating round shafts 701 is respectively fixedly sleeved with two bevel gears 703, the bottom of corrugated pipe 705 is fixedly installed with the top of support plate 501, the outer surface of two reciprocating round shafts 701 is respectively provided with two curved grooves, the front and back of one side of connecting plate 704 is respectively movably sleeved with the outer surface of two reciprocating round shafts 701 through two curved grooves, there are eight bevel gears 703 and every two bevel gears 703 is a group, the outer surface of each group of bevel gears 703 is in meshing state.

[0034] By the above scheme: when the horizontal shaft 502 rotates, the bevel gears 703 on the outer surface of the horizontal shaft 502 will also rotate, since there are two bevel gears 703, the other bevel gear 703 is fixedly sleeved with the outer surface of the reciprocating round shaft 701, and the two bevel gears 703 are meshed, at this time the reciprocating round shaft 701 is in a rotating state, since the reciprocating round shaft 701 is provided with curved grooves, and the curved grooves are connected head to tail, the connecting plate 704 is movably connected with the outer surface of the reciprocating round shaft 701 through the curved grooves, at this time through the rotation of the reciprocating round shaft 701, the connecting plate 704 can be in a reciprocating movement state, and the corrugated pipe 705 can be squeezed as a whole, and the bottom of the corrugated pipe 705 is also provided with a water inlet hole, which can be connected with an external water pipe, so that there is always water in the corrugated pipe 705, the water flow in the corrugated pipe 705 is sprayed through the top flow-through groove, and the connection of the water pipe increases the water pressure sprayed by the corrugated pipe 705, so that the dust on the top and bottom of the concrete block can be better washed by the water flow, and the cleaning assembly 7 has two in total, which are respectively distributed on the top and bottom of the support 1, so that the top and bottom of the concrete block can be cleaned, and when the dust on the top and bottom of the concrete block is cleaned, the connection between the top and bottom is more closely during the stacking process, so that the anti-skid effect is better.

[0035] As Figure 1 , Figure 2 , Figure 3As shown, the stable structure 3 comprises a cross plate 305 and a reel 303, one side of the cross plate 305 is movably mounted with the inner wall of the support 1, the inner wall of the support 1 is provided with a movable slot, the reel 303 is movably arranged in the movable slot, a spring telescopic rod 302 is fixedly arranged in the movable slot, a sliding block 301 is movably arranged on one side of the reel 303, a track 304 is fixedly sleeved on the outer surface of the sliding block 301, and the other end of the inner wall of the track 304 is fixedly sleeved with the output shaft of the motor 2.

[0036] By adopting the above scheme: when the worker places the concrete block on the top of the bottom transmission structure 4, if the size of the concrete block is too large, the toughness of the spring 503 enables the concrete block and the bottom transmission structure 4 to move downward, when the transmission structure 4 is pressed downward by the concrete block, the cross shaft 502 is also driven downward, the track 304 pulls the sliding block 301 and the reel 303 to move to one side when the cross shaft 502 descends, when the concrete block is separated from the device, the toughness of the spring 503 enables the transmission structure 4 to return to the original position, and the spring telescopic rod 302 can pull the sliding block 301 and the reel 303, so that the inner wall of the track 304 can still fit the outer surface of the cross shaft 502 and the output shaft of the motor 2 for power transmission, and the device can be applied to concrete blocks of different sizes.

[0037] As shown in Figure 1 , Figure 3 , Figure 4 As shown, the support structure 5 comprises a spring 503, the spring 503 is fixedly arranged at the bottom of the support 1, a support plate 501 is fixedly arranged at the top of the spring 503, two cross shafts 502 are movably arranged at the front and rear ends of one side of the support plate 501, the two cross shafts 502 are movably arranged at the front and rear ends of one side of the cross plate 305, the spring 503 has four and is distributed at the four corners of the bottom of the support plate 501, the support plate 501 has two and is distributed at the upper and lower ends of the support 1, the cross shaft 502 has four and each two is a group, and each group of cross shafts 502 is distributed at the upper and lower ends of the inner wall of the support 1, the upper end cross shaft 502 is arranged with the inner wall of the support 1, and the lower end cross shaft 502 is movably arranged with one side of the cross plate 305.

[0038] By adopting the above scheme: the support of the support structure 5 as a whole enables the remaining structures at the top to work better, thereby ensuring the stability of the work and the support of the concrete block.

[0039] As shown in Figure 9 , Figure 10As shown, the transmission structure 4 comprises an outer track 401, the outer surface of the outer track 401 is equidistantly hinged with a plurality of locking blocks 403, the inner wall of the outer track 401 is fixedly sleeved with an inner track 402, the outer surface of the inner track 402 is equidistantly fixedly installed with a plurality of strong magnets 404, the front and rear ends of the inner wall of the inner track 402 are respectively fixedly sleeved with the outer surface of each group of transverse shafts 502, the bottom of the locking block 403 is made of a magnet, the magnetic pole of the bottom of the locking block 403 is the same as the top of the strong magnet 404, the transmission structure 4 has four and each two is a group, and each group of transmission structures 4 is fixedly sleeved with the front and rear ends of the outer surface of the transverse shaft 502.

[0040] With the above scheme: in the process of rotating the transverse shaft 502, the transmission structure 4 is driven to enter the working state, at this time the concrete block can be placed on the top of the bottom transmission structure 4, at this time the transmission structure 4 will drive the concrete block to move to the left, when the concrete block is completely located on the top of the outer track 401, because the top of the strong magnet 404 and the magnetic pole of the bottom of the locking block 403 are the same, at this time the locking block 403 located on the right side of the concrete block will be protruding, because the rotating direction of the slotting assembly 6 is opposite to the advancing direction of the concrete block when the slotting assembly 6 is working, the concrete block is pushed to the other side, at this time the locking block 403 will prevent the concrete block from moving to the right, further, the device can more stably clamp the concrete block.

[0041] As shown in Figure 6 , Figure 8 As shown, the slotting assembly 6 comprises a reverse roller 602, the outer surface of the reverse roller 602 is equidistantly fixedly installed with a plurality of slotting blocks 603, the front and rear sides of the reverse roller 602 are respectively fixedly installed with two gears 601, the top of the support plate 501 is provided with a working groove, the gear 601 has four and each two is a group, the other side of each group of gears 601 is movably installed with the inner wall of the working groove, the outer surfaces of each group of gears 601 are engaged, the slotting assembly 6 has four and each two is a group, each group of slotting assemblies 6 and the working groove are respectively distributed on the top of the two support plates 501, the middle part of the outer surface of the transverse shaft 502 is movably penetrated into the inside of the working groove, the middle part of the gear 601 is fixedly installed with the outer surface of the transverse shaft 502

[0042] With the above scheme: when the transverse shaft 502 rotates, the gear 601 rotates, because the gear 601 has two groups and is respectively distributed on the outer surface of the transverse shaft 502 and the two sides of the reverse roller 602, the two groups of reverse rollers 602 are engaged, at this time the gear 601 rotates, drives the reverse roller 602 and the slotting block 603 to rotate, and the rotating directions are opposite, further, the spring 503 can more quickly open the pressure groove on the top and the bottom of the concrete block.

[0043] The working principle and use process of the present application are as follows:

[0044] The lateral shaft 502 is driven to rotate by the output shaft of the motor 2 and the track 304. In the process of rotation of the lateral shaft 502, the transmission structure 4 is simultaneously driven to work. At this time, the concrete block can be placed on the top of the bottom transmission structure 4. At this time, the transmission structure 4 will drive the concrete block to move to the left. When the concrete block is completely located on the top of the outer track 401, the top of the strong magnet 404 and the bottom of the locking block 403 have the same magnetic pole. At this time, the locking block 403 located on the right side of the concrete block will be protruding and prevent the concrete block from moving to the right. When the lateral shaft 502 rotates, the bevel gears 703 on the outer surface of the lateral shaft 502 will also rotate. Since there are two bevel gears 703, the other bevel gear 703 is fixedly sleeved with the outer surface of the reciprocating circular shaft 701, and the two bevel gears 703 are engaged. At this time, the reciprocating circular shaft 701 is in a rotating state. Since the reciprocating circular shaft 701 is provided with a curved groove, and the curved groove is connected at the head and tail, the connecting plate 704 is movably connected with the outer surface of the reciprocating circular shaft 701 through the curved groove. At this time, through the rotation of the reciprocating circular shaft 701, the connecting plate 704 can be in a reciprocating movement state, and the corrugated pipe 705 can be squeezed as a whole. The bottom of the corrugated pipe 705 is also provided with a water inlet hole, which can be connected with an external water pipe, so that water always exists in the corrugated pipe 705. The water flow in the corrugated pipe 705 is sprayed through the top flow-through groove. The connection of the water pipe increases the water pressure sprayed by the corrugated pipe 705, so that the dust on the top and bottom of the concrete block can be better washed by the water flow.

[0045] When the lateral shaft 502 rotates, the gear 601 is driven to rotate. Since the gear 601 has two groups and is respectively distributed on the outer surface of the lateral shaft 502 and the two sides of the reverse roller shaft 602, the two groups of reverse roller shafts 602 are engaged. At this time, the gear 601 rotates to drive the reverse roller shaft 602 and the slotted block 603 to rotate in opposite directions. This structure enables the spring 503 to more quickly open the pressure groove on the top and bottom of the concrete block. When the volume of the concrete block is high, the worker places the concrete block on the top of the bottom transmission structure 4. Through the toughness of the spring 503, the concrete block and the transmission structure 4 can move downward and still work normally. When the transmission structure 4 is compressed downward by the concrete block, the lateral shaft 502 will also be driven downward. The lateral shaft 502 is in transmission connection with the output shaft of the motor 2 through the track 304. The other end of the inner wall of the track 304 is also fixedly sleeved with the sliding block 301. When the lateral shaft 502 descends, the sliding block 301 and the reel 303 can move to one side through the toughness of the spring extension rod 302, and the inner wall of the track 304 can still adhere to the outer surface of the lateral shaft 502 and the output shaft of the motor 2 to transmit power.

[0046] It has to be noted that, in the present document, the terms "first", "second", etc. merely serve to identify different entities or actions from each other, without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprising", "containing", or any other similar term are intended to encompass non-exclusive inclusions, such that a process, method, article, or apparatus that comprises a list of elements does not necessarily include only those elements, but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0047] While embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, combinations, and variations can be undertaken by those skilled in the art without departing from the spirit and scope of the present application, which is defined by the appended claims and their equivalents.

Claims

1. An aerated concrete block surface groove anti-skid treatment device, comprising a support (1), characterized in that: The top of the support (1) is fixedly installed with a supporting structure (5), one side of the support (1) is fixedly installed with a motor (2), the front and rear sides of the inner wall of the support (1) are movably installed with two stabilizing structures (3), the outer surface of the supporting structure (5) is fixedly sleeved with a transmission structure (4), the top of the supporting structure (5) is fixedly installed with a cleaning assembly (7), and the inside of the supporting structure (5) is movably installed with a slotted assembly (6). The cleaning assembly (7) comprises a bellows (705), one side of the bellows (705) is fixedly installed with a connecting plate (704), the front and rear ends of one side of the connecting plate (704) are movably penetrated through two reciprocating round shafts (701), the left and right ends of the outer surfaces of the two reciprocating round shafts (701) are movably sleeved with two supporting frames (702), and the left and right sides of the two reciprocating round shafts (701) are fixedly sleeved with two bevel gears (703). The stabilizing structure (3) comprises a horizontal plate (305) and a reel (303), one side of the horizontal plate (305) is movably installed with the inner wall of the support (1), the inner wall of the support (1) is provided with a movable groove, the reel (303) is movably arranged in the movable groove, the inside of the movable groove is fixedly installed with a spring telescopic rod (302), one side of the reel (303) is movably installed with a sliding block (301), the outer surface of the sliding block (301) is fixedly sleeved with a track (304), and the other end of the inner wall of the track (304) is fixedly sleeved with the output shaft of the motor (2). The supporting structure (5) comprises a spring (503), the spring (503) is fixedly installed with the bottom of the support (1), the top of the spring (503) is fixedly installed with a supporting plate (501), and the front and rear ends of one side of the supporting plate (501) are movably penetrated through two transverse shafts (502). The spring (503) has four and is distributed at the four corners of the bottom of the supporting plate (501), the supporting plate (501) has two and is distributed at the upper and lower ends in the inside of the support (1), the transverse shaft (502) has four and is in each group of two, and the transverse shaft (502) is distributed at the upper and lower ends of the inner wall of the support (1), the upper end of the transverse shaft (502) is installed with the inner wall of the support (1), and the lower end of the transverse shaft (502) is movably installed with one side of the horizontal plate (305). The bottom of the bellows (705) is fixedly installed with the top of the supporting plate (501), the outer surfaces of the two reciprocating round shafts (701) are respectively provided with two curved grooves, the front and rear ends of one side of the connecting plate (704) are movably sleeved with the outer surfaces of the two reciprocating round shafts (701) through the two curved grooves, and the outer surfaces of the bevel gears (703) have eight and are in each group of two, and the outer surfaces of the bevel gears (703) are in meshing. The transmission structure (4) comprises an outer track (401), the outer surface of the outer track (401) is equidistantly hinged with a plurality of locking blocks (403), the inner wall of the outer track (401) is fixedly sleeved with an inner track (402), and the outer surface of the inner track (402) is equidistantly fixedly installed with a plurality of strong magnets (404); The front end and the rear end of the inner track (402) are respectively fixedly sleeved with the outer surface of each group of the transverse shafts (502), the bottom of the locking block (403) is made of a magnet, the magnetic pole of the bottom of the locking block (403) is same as that of the top of the strong magnet (404), the transmission structure (4) is four and each two is a group, and each group of the transmission structure (4) is fixedly sleeved with the front end and the rear end of the outer surface of the transverse shaft (502); The slotted assembly (6) comprises a reverse roller (602), the outer surface of the reverse roller (602) is equidistantly fixedly installed with a plurality of slotted blocks (603), and the front side and the rear side of the reverse roller (602) are respectively fixedly installed with two gears (601); The top of the supporting plate (501) is provided with a working groove, the gears (601) are four and each two is a group, the other side of each group of the gears (601) is movably installed with the inner wall of the working groove, and the outer surfaces of each group of the gears (601) are engaged with each other; The slotted assembly (6) and the working groove are four and each two is a group, each group of the slotted assembly (6) and the working groove are respectively distributed on the top of two supporting plates (501), the middle part of the outer surface of the transverse shaft (502) is movably penetrated into the inside of the working groove, and the middle part of the gear (601) is fixedly installed with the outer surface of the transverse shaft (502).

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