CN220593394U - Waterproofing membrane is with cutting device that paves - Google Patents

Abstract

The utility model discloses a paving and cutting device for waterproof coiled materials, which relates to the technical field of cutting and comprises a cutting machine, wherein cutting equipment is fixedly arranged on the upper surface of the cutting machine, a residue absorber is arranged in the cutting machine and comprises a driving motor, a communicating box and an exhaust fan blade, the output end of the driving motor penetrates into the communicating box and is fixedly connected with the exhaust fan blade, an L-shaped pipeline is communicated with the outer wall of the communicating box, a transverse rectangular pipeline is communicated with the top of the L-shaped pipeline, residue suction inlets are respectively communicated with two sides of the rectangular pipeline, and a residue storage box is communicated with the bottom of the communicating box. According to the utility model, the residue absorber is arranged, so that the effect of effectively cleaning residues generated during limiting and cutting of the waterproof coiled material is improved, the stable cutting effect is improved, and the problem that the residues appear during cutting of the waterproof coiled material, so that the work of a machine is affected and manual labor is wasted for cleaning the residues regularly is solved.

Description

Waterproofing membrane is with cutting device that paves

Technical Field

The utility model relates to the technical field of cutting, in particular to a paving and cutting device for waterproof coiled materials.

Background

The waterproof coiled material is mainly used for building walls, roofs, tunnels, highways, refuse landfills and other places. It is a flexible building material product that can be rolled up to resist leakage of external rain and groundwater. As the no-leakage connection between the engineering foundation and the building, the waterproof construction method is a waterproof first barrier of the whole engineering, plays a vital role in the whole engineering, and is used for splicing and paving the waterproof coiled materials in the whole construction area in the process of paving the waterproof coiled materials, and the waterproof coiled materials are required to be cut and paved at corners so as to achieve the effect of full coverage.

The automatic cutting machine is used for cutting and trimming sheets in various industries, and does not need any die; the product is controlled by system software and then is cut directly, and a computer transmits corresponding instructions to a cutting machine as long as corresponding parameters are set on an operation platform; the cutting machine carries out quick cutting according to the accepted design drawing, and the automation program is high; the operation is simple. Is cutting equipment adopted in many industries, when the waterproof coiled material is cut in the prior art, the waterproof coiled material cannot be kept in a tight state, so that the waterproof coiled material is easy to wrinkle, and the cutting effect is affected.

The utility model discloses a paving and cutting device for a waterproof coiled material, which comprises a cutting machine, wherein cutting equipment is arranged on the surface of the cutting machine, a paving device is arranged on the surface of the cutting machine, the paving device comprises a fixing frame, the fixing frame is fixedly connected with the surface of the cutting machine, a sliding rod is inserted in the fixing frame in a sliding manner, a circular plate is fixedly connected with the upper end of the sliding rod, a first spring is sleeved on the circular arc surface of the sliding rod, one end of the sliding rod, far away from the circular plate, is fixedly connected with a limiting plate, two supporting rods are inserted in the limiting plate in a sliding manner, one end of each supporting rod is fixedly connected with a pushing block, one side of each limiting plate, far away from the pushing block, is fixedly connected with two fixing blocks, a plug rod is inserted in the sliding manner in each fixing block, and a jack is formed in the circular arc surface of each supporting rod. Solves the problem that the waterproof coiled material in the prior art is easy to wrinkle so as to influence the cutting effect;

although the problem that the cutting effect is influenced by the fact that the waterproof coiled material is easy to fold can be solved by the cutting machine, the work of the machine can be influenced by friction generated residues when the machine is limited after the waterproof coiled material is cut, the residues are required to be cleaned manually and laboriously at regular intervals, and the cutting machining efficiency is reduced.

Disclosure of Invention

The utility model aims to provide a paving and cutting device for waterproof coiled materials, which aims to solve the problems in the background technology.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model provides a waterproofing membrane is with cutting device that paves, includes the guillootine, the upper surface fixed mounting of guillootine has cutting equipment, the inside residue absorber that is equipped with of guillootine, the residue absorber includes driving motor, intercommunication case and exhaust fan leaf, the driving motor output runs through to the intercommunication incasement with exhaust fan leaf fixed connection, the intercommunication case outer wall intercommunication has L type pipeline, L type pipeline top intercommunication has horizontal rectangular duct, rectangular duct's both sides intercommunication respectively has the residue sunction inlet, intercommunication case bottom intercommunication has the residue bin, the guillootine upper surface is provided with the mechanism that is located cutting equipment left side for carry out the effect of paving to waterproofing membrane when cutting the waterproofing membrane; the upper surface of guillootine is equipped with spacing subassembly for carry out spacing effect with waterproofing membrane.

The technical scheme of the utility model is further improved as follows: the spreading mechanism comprises a fixing frame, a sliding rod, circular plates, first springs, limiting plates, supporting rods and pushing blocks, wherein the fixing frame is fixedly connected to the upper surface of a cutting machine, the sliding rod is inserted into the fixing frame, the circular plates are fixedly connected to the upper ends of the sliding rods, one set of springs is arranged on the circular arc surfaces of the sliding rods, the limiting plates are fixedly connected to one ends, far away from the circular plates, of the sliding rods, the two limiting plates are inserted into the supporting rods, and the pushing blocks are fixedly connected to one ends of the supporting rods.

By adopting the technical scheme, the disc is pulled in the scheme to drive the slide rod to slide in the fixing frame and stretch the first spring, the slide rod drives the limiting plate to move, the waterproof coiled material is placed on the cutting machine, the disc is loosened, the slide rod is driven by the elastic force of the first spring to move, the slide rod drives the limiting plate to move, the limiting plate supports the waterproof coiled material on the cutting machine, the supporting rod is pushed to enable the supporting rod to slide in the limiting plate, the supporting rod drives the pushing block to move, the pushing block is enabled to be in contact with the waterproof coiled material and pave the waterproof coiled material, the phenomenon that the waterproof coiled material is folded due to the fact that the waterproof coiled material cannot be kept in a tight state is avoided, and the cutting effect is improved.

The technical scheme of the utility model is further improved as follows: the limiting plate is far away from two fixed blocks of one side fixedly connected with of ejector pad, sliding plug has been equipped with the inserted bar in the fixed block, the jack has been seted up to the arc surface of bracing piece, the one end fixedly connected with connecting block that the bracing piece was kept away from to the inserted bar, one side fixedly connected with second spring that the bracing piece was kept away from to the fixed block, the one end and the connecting block fixed connection of fixed block are kept away from to the second spring.

By adopting the technical scheme, the supporting rod is pushed to slide in the limiting plate, the supporting rod drives the pushing block to move until the inserting rod is aligned with the inserting hole of the supporting rod, the inserting rod is driven to slide in the fixing block by the elastic force of the second spring until the inserting rod is inserted into the inserting hole of the supporting rod, the effect of limiting the pushing block after the waterproof coiled material is paved is achieved, and the supporting of the supporting rod is not needed to be maintained by a worker during cutting, so that the convenience of the device is improved.

The technical scheme of the utility model is further improved as follows: one end of the supporting rod, which is far away from the push block, is fixedly connected with a limiting block.

By adopting the technical scheme, the supporting rod is limited by the limiting block in the scheme, so that the supporting rod is prevented from being separated from the limiting plate.

The technical scheme of the utility model is further improved as follows: the arc surface of the supporting rod is sleeved with a third spring, and two ends of the third spring are fixedly connected with the pushing block and the limiting plate respectively.

By adopting the technical scheme, after cutting, the inserting rod is pulled to enable the inserting rod to slide in the fixed block until the inserting rod is separated from the jack of the supporting rod, and the pushing block is driven to move by the elastic force of the third spring, so that the effect of resetting the pushing block is achieved.

The technical scheme of the utility model is further improved as follows: the limiting assembly comprises two supporting plates, a connecting rod, a baffle, a placing rod, a connecting plate and a screw rod, wherein the two supporting rods are respectively and fixedly connected to the upper surface of the cutting machine, the connecting rod is inserted into the supporting plates, the baffle is respectively and fixedly connected to one end of the connecting rod, which is close to each other, of the connecting rod, the placing rod is fixedly connected to one side of the baffle, which is far away from the connecting rod, the connecting plate is fixedly connected to one end of the connecting rod, which is far away from the baffle, of the connecting rod, the screw rod is inserted into the connecting plate, and the screw rod is connected with one side, which is close to the connecting plate, of the supporting plate in a rotating mode.

Adopt above-mentioned technical scheme, carry out spacingly through two baffles in this scheme, avoid when cutting waterproofing membrane takes place to remove and lead to cutting the condition that the position changes to appear, improved the accuracy of cutting, rotate on the bracing piece through rotatory screw rod, the screw rod drives the connecting plate and moves on the screw rod, the connecting plate drives the connecting rod and removes, the connecting rod drives the baffle and removes, has reached the effect of adjusting the position of baffle, makes the waterproofing membrane of device applicable to different sizes.

By adopting the technical scheme, compared with the prior art, the utility model has the following technical progress:

1. the utility model provides a paving and cutting device for a waterproof coiled material, which is characterized in that a cutting machine, cutting equipment, a residue absorber, a communicating box, a suction fan blade, an L-shaped pipeline, a rectangular pipeline, a residue suction inlet and a residue storage box are arranged, loose residues are arranged on the edge part of the cut waterproof coiled material, and the waterproof coiled material is subjected to limit treatment, so that the cutting residues of the waterproof coiled material are continuously rubbed and fall off, the residue absorber is arranged in the cutting machine, the suction fan blade in the communicating box is driven by a driving motor to generate suction in the L-shaped pipeline and the rectangular pipeline, and residues generated during the work of the cutting machine are sucked through the residue suction inlets on two sides of the rectangular pipeline, and the sucked residues are conveyed into the residue storage box through the communicating box so as to be convenient and fast to process manually. The problem of the waterproofing membrane cut the circumstances of friction production residue when back machine is spacing, and then lead to the residue to pile up influence machine work and artifical hard periodic cleaning residue is solved.

2. The utility model provides a paving and cutting device for a waterproof coiled material, which is characterized in that a fixing frame, a sliding rod, a circular plate, a first spring, a limiting plate, a supporting rod and a pushing block are arranged, the circular plate is pulled to enable the circular plate to drive the sliding rod to slide in the fixing frame and stretch the first spring, the sliding rod drives the limiting plate to move, the waterproof coiled material is placed on a cutting machine, the circular plate is loosened, the elastic force of the first spring drives the sliding rod to move, the sliding rod drives the limiting plate to enable the waterproof coiled material to prop against the cutting machine, the supporting rod is pushed to enable the supporting rod to slide in the limiting plate, the supporting rod drives the pushing block to move, the pushing block is enabled to be in contact with the waterproof coiled material and pave the waterproof coiled material, and the situation that the waterproof coiled material is folded due to the fact that the waterproof coiled material cannot be kept in a tight state is avoided, and the cutting effect is improved.

3. The utility model provides a paving and cutting device for a waterproof coiled material, which is characterized in that a fixing block, an inserting rod, a connecting block and a second spring are arranged, so that a supporting rod is pushed to slide in a limiting plate, the supporting rod drives a pushing block to move until the inserting rod is aligned with an inserting hole of the supporting rod, the inserting rod is driven to slide in the fixing block by the elasticity of the second spring until the inserting rod is inserted into the inserting hole of the supporting rod, the limiting effect of the pushing block after the waterproof coiled material is paved is achieved, a worker is not required to keep supporting the supporting rod during cutting, and the convenience of the device is improved.

Drawings

FIG. 1 is a schematic diagram of a front view of the present utility model;

FIG. 2 is a schematic view of a slicing structure of the residue remover of the present utility model;

FIG. 3 is a schematic view of a paving apparatus according to the present utility model;

FIG. 4 is a schematic view of a part of the paving apparatus according to the present utility model;

fig. 5 is a schematic structural view of a limiting device according to the present utility model.

In the figure: 1. a cutting machine; 2. cutting equipment; 3. a residue remover; 4. a driving motor; 5. a communication box; 6. a fan blade; 7. an L-shaped pipe; 8. rectangular pipes; 9. a residue suction port; 10. a residue storage tank; 11. a fixing frame; 12. a slide bar; 13. a circular plate; 14. a first spring; 15. a limiting plate; 16. a support rod; 17. a pushing block; 18. a fixed block; 19. a rod; 20. a connecting block; 21. a second spring; 22. a limiting block; 23. a third spring; 24. a support plate; 25. a connecting rod; 26. a baffle; 27. placing a rod; 28. a connecting plate; 29. and (3) a screw.

Detailed Description

The utility model is further illustrated by the following examples:

example 1

As shown in fig. 1-5, the utility model provides a paving and cutting device for a waterproof coiled material, cutting equipment is fixedly arranged on the upper surface of a cutting machine 1, a residue absorber 3 is arranged in the cutting machine 1, the residue absorber 3 comprises a driving motor 4, a communicating box 5 and an exhaust fan blade 6, the output end of the driving motor 4 penetrates into the communicating box 5 and is fixedly connected with the exhaust fan blade 6, an L-shaped pipeline 7 is communicated with the outer wall of the communicating box 5, a transverse rectangular pipeline 8 is communicated with the top of the L-shaped pipeline 7, two sides of the rectangular pipeline 8 are respectively communicated with a residue suction inlet 9, a residue storage box 10 is communicated with the bottom of the communicating box 5, and a paving mechanism is arranged on the left side of the cutting equipment 2 and is used for paving the waterproof coiled material when the waterproof coiled material is cut; the upper surface of the cutting machine 1 is provided with a limiting component for limiting the waterproof coiled material; the upper surface of the cutting machine 1 is provided with a mechanism positioned at the left side of the cutting equipment 2 and used for paving the waterproof coiled material when the waterproof coiled material is cut; the upper surface of the cutting machine 1 is provided with a limiting mechanism for limiting the waterproof coiled material, the leveling mechanism comprises a fixing frame 11, a slide bar 12, a circular plate 13, a first spring 14, a limiting plate 15, a supporting rod 16 and a pushing block 17, the fixing frame 11 is fixedly connected to the upper surface of the cutting machine 1, the slide bar 12 is inserted into the fixing frame 11, the circular plate 13 is fixedly connected to the upper end of the slide bar 12, the first spring 14 is sleeved on the circular arc surface of the slide bar 12, the limiting plate 15 is fixedly connected to one end of the slide bar 12 far away from the circular plate 13, the two supporting rods 16 are inserted into the limiting plate 15, the pushing block 17 is fixedly connected to one end of the supporting rod 16, one side of the limiting plate 15 far away from the pushing block 17 is fixedly connected with two fixing blocks 18, an inserting rod 19 is inserted into the circular arc surface of the supporting rod 16, one end of the inserting rod 19 far away from the supporting rod 16 is fixedly connected with a connecting block 20, one side of the fixing block 18 far away from the supporting rod 16 is fixedly connected with a second spring 21, and one end of the second spring 21 far away from the fixing block 18 is fixedly connected with the connecting block 20.

In the embodiment, the edge part of the cut waterproof coiled material is provided with loose residues, the waterproof coiled material is required to be subjected to limit treatment, so that the waterproof coiled material cutting residues are continuously rubbed and dropped, the residue absorber 3 arranged in the cutting machine 1 drives the air suction fan blade 6 in the communicating box to generate air suction in the L-shaped pipeline 7 and the rectangular pipeline 8 through the driving motor 4, the residues generated during the working of the cutting machine 1 are absorbed through the residue suction inlet 9 on two sides of the rectangular pipeline 8, the absorbed residues are fed into the residue storage box through the communicating box 5 for convenient manual treatment, the circular plate 13 is pulled to drive the sliding rod 12 to slide in the fixing frame 11 and stretch the first spring 14, the sliding rod 12 drives the limit plate 15 to move, the waterproof coiled material is placed on the cutting machine 1, the circular plate 13 is loosened, the sliding rod 12 is driven to move through the elasticity of the first spring 14, the slide bar 12 drives the limiting plate 15 to move so that the limiting plate 15 supports the waterproof coiled material on the cutting machine 1, the supporting rod 16 is pushed to enable the supporting rod 16 to slide in the limiting plate 15, the supporting rod 16 drives the pushing block 17 to move, the pushing block 17 is enabled to be in contact with the waterproof coiled material and lay flat the waterproof coiled material, the situation that the waterproof coiled material cannot be kept in a tight state to cause the waterproof coiled material to be folded is avoided, the cutting effect is improved, the supporting rod 16 is pushed to enable the supporting rod 16 to slide in the limiting plate 15, the supporting rod 16 drives the pushing block 17 to move until the inserting hole of the inserting rod 19 and the inserting hole of the supporting rod 16 are aligned, the inserting rod 19 is driven to slide in the fixing block 18 through the elastic force of the second spring 21 until the inserting rod 19 is inserted into the inserting hole of the supporting rod 16, the effect of limiting the pushing block 17 after the waterproof coiled material is laid flat is achieved, and workers are not required to hold the supporting rod 16 during cutting, the convenience of the device is improved.

Example 2

As shown in fig. 1-5, on the basis of embodiment 1, the present utility model provides a technical solution: preferably, one end of the supporting rod 16 far away from the push block 17 is fixedly connected with a limiting block 22, a third spring 23 is sleeved on the arc surface of the supporting rod 16, two ends of the third spring 23 are fixedly connected with the push block 17 and the limiting plate 15 respectively, the limiting assembly comprises two supporting plates 24, a connecting rod 25, a baffle 26, a placing rod 27, a connecting plate 28 and a screw 29, the two supporting rods 16 are fixedly connected to the upper surface of the cutting machine 1 respectively, the connecting rod 25 is inserted in the supporting plates 24, the baffle 26 is fixedly connected to one end of the connecting rod 25 close to each other, the placing rod 27 is fixedly connected to one side of the baffle 26 far away from the connecting rod 25, the connecting plate 28 is fixedly connected to one end of the connecting rod 25 far away from the baffle 26, the screw 29 is inserted in the connecting plate 28 in a threaded manner, and the screw 29 is rotationally connected to one side of the supporting plate 24 close to the connecting plate 28.

In this embodiment, limit block 22 is used for limiting support rod 16, the situation that support rod 16 breaks away from in limiting plate 15 is avoided, after cutting, pull inserted bar 19 makes inserted bar 19 slide in fixed block 18, when inserted bar 19 breaks away from in the jack of support rod 16, the elasticity through third spring 23 drives pusher 17 and removes, the effect of being convenient for reset pusher 17 has been reached, limit waterproofing membrane through two baffles 26, avoid waterproofing membrane to take place to remove when cutting and lead to cutting the condition that the position changes to appear, the accuracy of cutting has been improved, rotate on support rod 16 through rotatory screw 29, screw 29 drives connecting plate 28 and removes on screw 29, connecting plate 28 drives connecting rod 25 and removes, connecting rod 25 drives baffle 26 and removes, the effect of adjusting the position of baffle 26 has been reached, make the waterproofing membrane of device applicable to different sizes.

The working principle of the paving and cutting device for the waterproof coiled material is specifically described below.

As shown in fig. 1-5, when the waterproof coiled material is needed to be cut in the working process, the circular plate 13 is pulled to enable the circular plate 13 to drive the slide rod 12 to slide in the fixing frame 11 and stretch the first spring 14, the slide rod 12 drives the limit plate 15 to move, the waterproof coiled material is placed on the cutting machine 1, the circular plate 13 is loosened, the slide rod 12 is driven by the elastic force of the first spring 14 to drive the slide rod 12 to move, the limit plate 15 is enabled to enable the waterproof coiled material to prop against the cutting machine 1, the support rod 16 is pushed to enable the support rod 16 to slide in the limit plate 15, the support rod 16 drives the push block 17 to move, the push block 17 is enabled to be in contact with the waterproof coiled material and pave the waterproof coiled material until the slide rod 12 and the jack supporting the support rod are aligned, the insert rod 19 is driven by the elastic force of the second spring 21 to slide in the fixing block 18 until the insert rod 19 is inserted into the jack of the support rod 16, the waterproof coiled material is cut by the cutting equipment 2, the waterproof coiled material is prevented from being folded when the waterproof coiled material is cut, and the waterproof coiled material cannot be kept in a tight state, and the waterproof coiled material is prevented from being folded. When the cut waterproof coiled material is required to be taken down, the circular plate 13 is pulled to enable the circular plate 13 to drive the limiting plate 15 to move until the limiting plate 15 is separated from the waterproof coiled material, the cut waterproof coiled material on the cutting machine 1 is taken down, the inserting rod 19 is pulled to enable the inserting rod 19 to slide in the fixed block 18 until the inserting rod 19 is separated from the inserting hole of the supporting rod 16, the pushing block 17 is driven to move through the elastic force of the third spring 23, the effect of resetting the pushing block 17 is achieved conveniently, when the cut waterproof coiled material is required to be limited, the waterproof coiled material is placed on the placing rod 27, the two baffles 26 are used for limiting the waterproof coiled material, the situation that the cutting position is changed due to movement of the waterproof coiled material during cutting is avoided, the cutting accuracy is improved, the screw 29 is rotated on the supporting rod 16, the connecting rod 29 is driven to move on the screw rod 29, the connecting rod 25 is driven to move by the connecting rod 28, the connecting rod 25 is driven to move the baffle 26, and the effect of adjusting the position of the baffle 26 is achieved, and the waterproof coiled material with different sizes is suitable for use.

The foregoing utility model has been generally described in great detail, but it will be apparent to those skilled in the art that modifications and improvements can be made thereto. Accordingly, it is intended to cover modifications or improvements within the spirit of the inventive concepts.

Claims (6)

1. The utility model provides a waterproofing membrane is with cutting device that paves, includes guillootine (1), its characterized in that: the upper surface fixed mounting of guillootine (1) has cutting equipment (2), the inside residue absorber (3) that is equipped with of guillootine (1), residue absorber (3) are including driving motor (4), intercommunication case (5) and air extraction fan leaf (6), driving motor (4) output run through to in intercommunication case (5) with air extraction fan leaf (6) fixed connection, intercommunication case (5) outer wall intercommunication has L type pipeline (7), L type pipeline (7) top intercommunication has horizontal rectangular pipeline (8), the both sides of rectangular pipeline (8) communicate respectively has residue sunction inlet (9), intercommunication case (5) bottom intercommunication has residue bin (10);

the upper surface of the cutting machine (1) is provided with a paving mechanism positioned at the left side of the cutting equipment (2), and the paving mechanism is used for paving the waterproof coiled material when the waterproof coiled material is cut;

the upper surface of guillootine (1) is equipped with spacing subassembly, spacing subassembly is used for carrying out spacing effect with waterproofing membrane.

2. The paving and cutting device for waterproof coiled materials according to claim 1, wherein: the utility model provides a shop's flat mechanism includes mount (11), slide bar (12), plectane (13), first (14) of spring, limiting plate (15), bracing piece (16) and ejector pad (17), mount (11) fixed connection is in cutting machine (1) upper surface, slide bar (12) are inserted and are established in mount (11), plectane (13) fixed connection is in slide bar (12) upper end, first (14) the cover of spring is established in the arc surface of slide bar (12), limiting plate (15) fixed connection keeps away from the one end of plectane (13) in slide bar (12), two bracing piece (16) are inserted and are established in limiting plate (15), ejector pad (17) fixed connection is in the one end of bracing piece (16).

3. The paving and cutting device for waterproof coiled materials according to claim 2, wherein: one side fixedly connected with two fixed blocks (18) of kicking block (17) are kept away from to limiting plate (15), the interior plug-in connection that is equipped with of fixed block (18) inserted bar (19), the jack has been seted up to the arc surface of bracing piece (16), one end fixedly connected with connecting block (20) that bracing piece (16) were kept away from to inserted bar (19), one side fixedly connected with second spring (21) that bracing piece (16) was kept away from to fixed block (18), one end and connecting block (20) fixed connection that fixed block (18) were kept away from to second spring (21).

4. The paving and cutting device for waterproof coiled materials according to claim 2, wherein: one end of the supporting rod (16) far away from the pushing block (17) is fixedly connected with a limiting block (22).

5. The paving and cutting device for waterproof coiled materials according to claim 2, wherein: the arc surface of the supporting rod (16) is sleeved with a third spring (23), and two ends of the third spring (23) are fixedly connected with the pushing block (17) and the limiting plate (15) respectively.

6. The paving and cutting device for waterproof coiled materials according to claim 2, wherein: limiting component includes two backup pads (24), connecting rod (25), baffle (26), places pole (27), connecting plate (28) and screw rod (29), two bracing piece (16) are fixed connection respectively at guillootine (1) upper surface, connecting rod (25) are inserted and are established in backup pad (24), baffle (26) are fixed connection respectively in one end that connecting rod (25) is close to each other, place one side that connecting rod (25) was kept away from in baffle (26) to pole (27) fixed connection, connecting plate (28) fixed connection keeps away from one end of baffle (26) in connecting rod (25), screw rod (29) screw thread are inserted and are established in connecting plate (28), screw rod (29) are connected in one side rotation that connecting plate (28) are close to with backup pad (24).