CN220279902U

CN220279902U - Plank processing device

Info

Publication number: CN220279902U
Application number: CN202320274447.2U
Authority: CN
Inventors: 李伟滨
Original assignee: Puning Xincai Decoration Engineering Co ltd
Current assignee: Puning Xincai Decoration Engineering Co ltd
Priority date: 2023-02-22
Filing date: 2023-02-22
Publication date: 2024-01-02
Anticipated expiration: 2033-02-22

Abstract

The utility model relates to the technical field of wood board processing devices and discloses a wood board processing device which comprises a main body, wherein an operating table is arranged in the middle of the main body, a board groove is formed in the middle of the top end of the operating table, a cover plate is arranged in the board groove, a limit groove is formed in the middle of the top end of the cover plate, a clamping groove is formed in the limit groove, a brushing groove is arranged in the clamping groove, a sawing groove is formed in the middle of the brushing groove, a fixing groove is formed in the sawing groove, a hairbrush base is arranged in the fixing groove, and a hairbrush is arranged on one side of the hairbrush base. According to the utility model, the detachable dust removing device free of bolt fixation is arranged, dust accumulation in the band saw machine is reduced, meanwhile, the dust removing device is convenient to detach and clean, the wood board fixing device is convenient to fix the wood board without falling and moving, the rotary placement of the wood board on an operation table is not influenced, the problem that the hands of workers are easy to be injured due to the fact that the traditional wood strips are required to be manually and completely pushed to the saw blade is solved by the arranged clamping piece, and the device is simple in structure and small in size.

Description

Plank processing device

Technical Field

The utility model relates to the technical field of wood board processing devices, in particular to a wood board processing device.

Background

The wood board is formed by manually processing trees through a special processing device, and has irreplaceable functions in the society formed by reinforced concrete at present, a common device for processing the wood board in the process of a band saw machine takes annular endless band saw blades as saw tools, and the band saw machine for sawing the wood by winding the annular endless band saw blades on two saw wheels to perform unidirectional continuous linear motion mainly comprises a lathe bed, saw wheels, a saw wheel lifting and pitching device, a band saw blade tensioning device, a saw blade guiding device, a workbench, a guide plate and the like, wherein the lathe bed is formed by welding cast iron or steel plates.

The band saw machine still has the place that needs the improvement as a common plank processing tool when improving work efficiency, saw blade rotates through the saw wheel in actual service environment and drives the saw blade to process the plank, can produce saw-dust and dust in the course of working, can have certain adsorption to it when the saw blade produces heat, can bring saw-dust and dust into inside the band saw machine, can cause long-time the deposition to cause the damage to equipment, when processing the plank, a part of saw machine does not have fixing device to the plank, or set up fixing device on the operation panel, timber can drop or become flexible during the use, very inconvenient, when sawing the plank to the afterbody, staff's hand can not leave timber, to a great extent increases the contact risk of hand and saw blade, lead to the hand injury.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art, and provides the wood board processing device which can clean dust on a saw blade through the dust removing device which is arranged and convenient to detach, so that dust accumulation in a wood sawing machine is reduced, the clamping device is arranged to fix the processed wood board, the wood board cannot loosen or fall off, and the clamping device is arranged when the wood saw reaches the tail part to push the wood to the saw blade, so that the injury risk of hands is reduced.

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

the utility model relates to a wood board processing device which comprises a main body, wherein an operation table is arranged in the middle of the top end of the main body, a board groove is formed in the middle of the top end of the operation table, a cover plate is arranged in the board groove, a limit groove is formed in the middle of the top end of the cover plate, a clamping groove is formed in the limit groove, a brush groove is arranged in the clamping groove, a limit clamping piece is arranged at the top of one side of the brush groove, a saw groove is formed in the middle of the brush groove, a fixed groove is formed in the saw groove, a first screw hole is sequentially formed in the fixed groove, a brush base is arranged in the fixed groove, a first screw hole is formed in one side of the brush base, a first bolt is arranged in the first screw hole, and a brush is arranged on one side of the brush base.

According to the preferable technical scheme, a limiting base is arranged in the middle of one side of a main body, a sliding groove is sequentially formed in one side of the limiting base, a fixing hole is formed in the bottom of one side of the limiting base, a fixing block is arranged on one side of the limiting base, a fixing hole is formed in one side of the fixing block, a fixing piece is arranged in the fixing hole, a sliding rod is arranged in the sliding groove, a connecting block is arranged at the bottom of the sliding rod, a connecting hole is sequentially formed in one side of the connecting block, a connecting piece is arranged in the connecting hole, a first top plate is arranged at one end of the connecting piece, a second screw hole is formed in one side of the top end of the first top plate, a second bolt is arranged in the second top plate, a second screw hole is formed in one side of the top end of the first top plate, a second side plate is arranged at the other end of the connecting rod, a connecting groove and a second screw hole are sequentially formed in the top end of the second side plate, a third side plate is arranged at the top end of the second side plate, a first top plate is sequentially arranged at the top end of the third top plate, a second top plate is sequentially arranged at the top end of the second screw hole is sequentially arranged at the second top plate, and a second top plate is sequentially arranged at the top plate.

As a preferable technical scheme of the utility model, a third screw hole is sequentially formed in one end of the connecting block, a rotating shaft is arranged at one end of the connecting piece, threads are arranged at the top of one side of the rotating shaft, a nut is arranged at one side of the rotating shaft, a clamping seat is arranged at one end of the clamping seat, a third screw hole is arranged at one end of the first screw hole, a third bolt is arranged in the first screw hole, a connecting rod is arranged at one side of the rotating shaft, a clamping piece block is arranged at the bottom end of the connecting rod, a clamping piece hole is formed in one end of the clamping piece block, and a clamping piece is arranged in the clamping piece hole.

As a preferable technical scheme of the utility model, the operation table is connected with the cover plate in an embedded way, the cover plate is made of stainless steel, the brush groove is connected with the cover plate in an embedded way, the clamping groove is made of PA plastic, the brush groove is fixedly connected with the brush base through a first bolt, the brush base is connected with the brush in an adhesive way, and the brush is made of nylon.

As a preferable technical scheme of the utility model, the limit base is connected with the main body by electric welding, the limit base is movably connected with the fixed block through the fixed piece, the limit base is connected with the slide bar by contact, the slide bar is arranged in a cuboid shape and is made of cast iron materials, the slide bar is connected with the connecting block by electric welding, the connecting block is connected with the connecting piece by contact, the connecting piece is connected with the first top plate by electric welding, the first top plate is fixedly connected with the first side plate through a second bolt, the first top plate is made of cast iron materials, the connecting piece is connected with the second side plate by contact, the second side plate is fixedly connected with the second top plate through a second bolt, the second side plate is fixedly connected with the third top plate through a second bolt, the second top plate is made of cast iron materials, and the connecting piece is arranged in a cuboid shape.

As a preferable technical scheme of the utility model, the connecting block is electrically welded with the rotating shaft, the connecting block is fixedly connected with the clamping seat through the third bolt, the clamping seat is made of an aluminum alloy material, the connecting rod is movably connected with the connecting block through the rotating shaft and is fixed through the nut, the clamping piece block is electrically welded with the connecting rod, the clamping piece is embedded with the clamping piece block, and the clamping piece is made of an aluminum alloy material and is U-shaped.

As a preferable technical scheme of the utility model, the clamping seat is a polyhedron formed by a curved surface and a square plane, one end of the clamping seat is sequentially arranged in the first screw hole, and the curved surface of the clamping seat and the curved surface of one end of the connecting rod are correspondingly arranged.

Compared with the prior art, the utility model has the following beneficial effects:

according to the utility model, the detachable dust removing device free of bolt fixation is arranged, dust accumulation in the band saw machine is reduced, meanwhile, the dust removing device is convenient to detach and clean, the wood board fixing device is convenient to fix the wood board without falling and moving, the rotary placement of the wood board on an operation table is not influenced, the problem that the hands of workers are easy to be injured due to the fact that the traditional wood strips are required to be manually and completely pushed to the saw blade is solved by the arranged clamping piece, and the device is simple in structure and small in size.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a schematic view of the overall structure of the present utility model;

FIG. 2 is a schematic view of a slide bar structure of the present utility model;

FIG. 3 is a schematic view of the brush channel structure of the present utility model;

FIG. 4 is a schematic cross-sectional view of a brush channel according to the present utility model;

FIG. 5 is a schematic view of a clip structure according to the present utility model;

in the figure: 1. a main body; 2. an operation table; 3. a plate groove; 4. a cover plate; 5. a limit groove; 6. a clamping groove; 7. brushing grooves; 8. a limit clamping piece; 9. sawing grooves; 10. a fixing groove; 11. a first screw hole; 12. a brush base; 13. a brush; 14. a limit base; 15. a chute; 16. a fixing hole; 17. a fixed block; 18. a fixing member; 19. a slide bar; 20. a connecting block; 21. a connection hole; 22. a connecting piece; 23. a first top plate; 24. a second top plate; 25. a third top plate; 26. a first side plate; 27. a second side plate; 28. a second screw hole; 29. a second bolt; 30. a third screw hole; 31. a third bolt; 32. a rotating shaft; 33. a nut; 34. a clamping seat; 35. a connecting rod; 36. a clamping piece block; 37. a clip hole; 38. a clamping piece; 39. a first bolt; 40. and a connecting groove.

Detailed Description

The preferred embodiments of the present utility model will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present utility model only, and are not intended to limit the present utility model.

Wherein like reference numerals refer to like elements throughout.

Example 1

As shown in fig. 1-5, the utility model provides a processing device for a wood board, which comprises a main body 1, wherein an operation table 2 is installed in the middle of the main body 1, a board groove 3 is arranged in the middle of the top end of the operation table 2, a cover plate 4 is installed in the interior of the board groove 3, a limit groove 5 is arranged in the middle of the top end of the cover plate 4, a clamping groove 6 is arranged in the interior of the limit groove 5, a brush groove 7 is installed in the interior of the clamping groove 6, a limit clamping piece 8 is installed at the top of one side of the brush groove 7, a sawing groove 9 is arranged in the middle of the brush groove 7, a fixed groove 10 is arranged in the interior of the sawing groove 9, a first screw hole 11 is sequentially arranged in the fixed groove 10, a brush base 12 is installed in the fixed groove 10, a first screw hole 11 is arranged on one side of the brush base 12, a first bolt 39 is installed in the first screw hole 11, and a brush 13 is installed on one side of the brush base 12.

Further, a limit base 14 is installed in the middle of one side of the main body 1, a chute 15 is sequentially arranged on one side of the limit base 14, a fixing hole 16 is formed in the bottom of one side of the limit base 14, a fixing block 17 is installed on one side of the limit base 14, a fixing hole 16 is formed in one side of the fixing block 17, a fixing piece 18 is installed in the fixing hole 16, a slide bar 19 is installed in the interior of the chute 15, a connecting block 20 is installed at the bottom of the slide bar 19, a connecting hole 21 is sequentially arranged on one side of the connecting block 20, a connecting piece 22 is installed in the interior of the connecting hole 21, a first top plate 23 is installed at one end of the connecting piece 22, a second screw hole 28 is formed in one side of the top end of the first top plate 23, a second bolt 29 is installed in the interior of the second screw hole 28, a first side plate 26 is installed at the bottom end of the first top plate 26, the other end of the connecting rod 35 is provided with a second side plate 27, the top end of the second side plate 27 is provided with a connecting groove 40 and a second screw hole 28 in sequence, the top end of the second side plate 27 is provided with a third side plate, the top end of the third top plate 25 is provided with a second screw hole 28 in sequence, the top end of the second side plate 27 is provided with a second top plate 24, the top end of the second top plate 24 is provided with a second screw hole 28 in sequence, the limiting base 14 and the sliding rod 19 form a stress structure of the fixing device in the vertical direction, the sliding rod 19 vertically slides in the limiting base 14, the fixing device is fixed through a fixing block 17, the connecting block 20 and the connecting piece 22 form a stress structure of the fixing device in the horizontal direction, the connecting piece 22 slides in the most horizontal direction in the connecting block 20, the fixing device formed by the second side plate 27 slides in the surface of the connecting piece 22 in the horizontal direction, and processing the wood board to be processed.

The one end of connecting block 20 sets gradually third screw 30, pivot 32 is installed to the one end of connecting piece 22, one side top of pivot 32 is provided with the screw thread, and install nut 33, cassette 34 is installed to one side of pivot 32, the one end of cassette 34 is provided with third screw 30, the internally mounted of third screw 30 has third bolt 31, connecting rod 35 is installed to one side of pivot 32, clamping piece 36 is installed to the bottom of connecting rod 35, one end of clamping piece 36 is provided with clamping piece hole 37, the internally mounted in clamping piece hole 37 has clamping piece 38, cassette 34 connects connecting block 20 and connecting rod 35, rotatory motion is done around pivot 32 to the connecting rod 35, sliding motion is done inside clamping piece 36 to clamping piece 38.

The operation panel 2 is connected for the embedding with apron 4, and apron 4 adopts stainless steel material to make, and brush groove 7 and apron 4 are connected for the embedding, and draw-in groove 6 adopts PA plastics material to make, and brush groove 7 passes through first bolt 39 and brush base 12 fixed connection, and brush base 12 and brush 13 are the bonding connection, brush 13 adopts nylon material to make, and stainless steel material its high corrosion resistance makes it can be used to harsh environment. The nylon material has high mechanical strength, good toughness and high tensile and compressive strength.

The limiting base 14 is electrically welded with the main body 1, the limiting base 14 is movably connected with the fixing block 17 through the fixing piece 18, the limiting base 14 is in contact connection with the sliding rod 19, the sliding rod 19 is in cuboid arrangement and is made of cast iron, the sliding rod 19 is electrically welded with the connecting block 20, the connecting block 20 is in contact connection with the connecting piece 22, the connecting piece 22 is electrically welded with the first top plate 23, the first top plate 23 is fixedly connected with the first side plate 26 through the second bolt 29, the first side plate 26 is made of cast iron, the connecting piece 22 is in contact connection with the second side plate 27, the second side plate 27 is fixedly connected with the second top plate 24 through the second bolt 29, the second side plate 27 is fixedly connected with the third top plate 25 through the second bolt 29, the connecting piece 22, the second side plate 27, the second top plate 24 is made of cast iron, the third top plate 25 is made of cast iron, and the connecting piece 22 is made of cast iron, and the cast iron is provided with high mechanical strength and toughness for the cuboid arrangement of the cast iron, and the limiting base has special performances of heat resistance, corrosion resistance, wear resistance and the like.

Connecting block 20 and pivot 32 are electric welding and connect, connecting block 20 is fixed connection through third bolt 31 and cassette 34, cassette 34 adopts the aluminum alloy material to make, connecting rod 35 is through pivot 32 and connecting block 20 swing joint, and it is fixed through nut 33, fastener piece 36 and connecting rod 35 are electric welding and connect, fastener 38 and fastener piece 36 are embedded connection, fastener 38 adopts the aluminum alloy material to make, and be U type setting, the intensity of aluminum alloy material is good, still have corrosion-resistant and easy processing's characteristics, the U type setting of fastener 38 can avoid fastener 38 to contact the saw blade and lead to the saw blade to damage.

The clamping seat 34 is a polyhedron formed by a curved surface and a square plane, one end of the clamping seat 34 is sequentially arranged at the first screw hole 11, the curved surface of the clamping seat 34 and the curved surface of one end of the connecting rod 35 are correspondingly arranged, and the clamping seat 34 plays a role in connection and simultaneously has a limiting effect on the connecting rod 35.

Specifically, the plate groove 3 is used for installing and fixing the cover plate 4, the cover plate 4 is used for installing the clamping groove 6, the limiting groove 5 is used for installing the brush groove 7, the clamping groove 6 is used for fixing the limiting clamping piece 8, the brush groove 7 is further fixed, the fixing groove 10 is used for installing the brush base 12, the brush base 12 is used for installing the brush 13, the limiting base 14 is used for installing the slide bar 19, the slide groove 15 is used for fixing the slide bar 19, the fixing hole 16 is used for installing the fixing piece 18, the fixing piece 18 is used for fixing the fixing block 17, the slide bar 19 is further fixed through the action of the fixing piece 18 on the fixing block 17, the slide bar 19 is used for installing the connecting block 20 and is a stressed structure of the connecting block 20, the connecting block 20 is used for installing the connecting piece 22, the connecting piece 22 is used for installing the first side plate 26 component and the second side plate 27 component, the first top plate 23 and the first side plate 26 component are formed by the first side plate 26, the second side plate 27 and the third top plate 25 are formed by the connecting groove 40, the connecting piece 22 is arranged, the third top plate 25, the second top plate 24 and the second side plate 27 form a second side plate 27 assembly, the clamping seat 34 is used for installing the connecting rod 35, the connecting rod 35 is used for connecting the clamping seat 34 and the clamping piece 36, the clamping piece hole 37 is used for installing the clamping piece 38, the clamping piece 38 is used for pushing a wood board to be processed, when the dust removing device is assembled, the hairbrush 13 and the hairbrush base 12 are connected in an adhesive manner, the hairbrush groove 7 is arranged in the fixed groove 10 in the brush groove 7 through the first bolt 39, then the brush groove 7 is arranged in the clamping groove 6 of the cover plate 4 through the clamping piece 38, finally the cover plate 4 is arranged in the plate groove 3, dust on the surface is removed through the hairbrush 13 when the saw blade works, the sliding rod 19 is arranged in the limiting base 14, the fixed block 17 is arranged on one side of the limiting base 14 through the fixing piece 18, the fixing rod 19 can be vertically fixed on the wood board to be processed, the connecting piece 22 is arranged in the connecting hole 21, the first side plate 26 and the second side plate 27 at two ends of the connecting piece 22 are adjusted left and right according to the size of a wood plate to be processed, the first side plate 26 and the second side plate 27 fix the wood plate in the wood plate processing process, the wood plate is prevented from loosening in the processing process, the wood plate falls off from the operation table 2 after the processing is finished, the clamping seat 34 is fixedly arranged at one end of the connecting block 20 through the third bolt 31, the connecting rod 35 is arranged on the rotating shaft 32 through the rotating shaft 32, the clamping piece 38 is finally arranged on the clamping piece block 36, when the tail end of the wood plate is close to the saw blade, the clamping piece block 36 rotates to drive the connecting rod 35 to rotate around the rotating shaft 32, and after the clamping piece block 36 rotates to the tail end of the wood plate, the clamping piece 38 is pushed, and the hand is further pushed, so that the saw damage of the hand by the saw blade in the process is avoided.

When the user uses the band saw blade, only need install draw-in groove 6 to apron 4 inside, then prevent apron 4 inside the board groove 3 of operation panel 2, alright remove dust the work to the saw blade in the operation, control slide bar 19 slide from top to bottom when fixed plank, slide to suitable position, through mounting 18 to slide bar 19 fixed can, according to the plank size adjustment first curb plate 26 and second curb plate 27 can be fixed about the plank in the course of working in the horizontal direction, prevent that it from becoming flexible or dropping.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The utility model provides a processingequipment of plank, includes main part (1), connecting rod (35) and third roof (25), its characterized in that, mid-mounting of main part (1) has operation panel (2), the top mid-section of operation panel (2) is provided with board groove (3), the internally mounted of board groove (3) has apron (4), the top mid-section of apron (4) is provided with spacing groove (5), the inside of spacing groove (5) is provided with draw-in groove (6), the internally mounted of draw-in groove (6) has brush groove (7), one side top of brush groove (7) is installed spacing fastener (8), the mid-section of brush groove (7) is provided with saw groove (9), the inside of saw groove (9) is provided with fixed slot (10), the inside of fixed slot (10) sets gradually first screw (11), fixed slot (10) internally mounted has base (12), one side of brush base (12) is provided with first screw (11), first screw (39) are installed to one side of brush base (12), first screw (39) are installed to brush bolt (13).

2. The processing device for the wood board according to claim 1, wherein a limit base (14) is arranged in the middle of one side of the main body (1), a chute (15) is sequentially arranged on one side of the limit base (14), a fixing hole (16) is formed in the bottom of one side of the limit base (14), a fixing block (17) is arranged on one side of the limit base (14), a fixing hole (16) is formed in one side of the fixing block (17), a fixing piece (18) is arranged in one side of the fixing hole (16), a slide bar (19) is arranged in the interior of the chute (15), a connecting block (20) is arranged at the bottom of the slide bar (19), a connecting hole (21) is sequentially arranged on one side of the connecting block (20), a connecting piece (22) is arranged in the interior of the connecting hole (21), a first top plate (23) is arranged at one end of the connecting piece (22), a second screw hole (28) is arranged on one side of the top end of the first top plate (23), a second screw bolt (29) is arranged in one side of the second screw hole (28), a second bolt (29) is arranged in the interior of the second screw hole (28), a first top plate (26) is arranged on the first side (26), a connecting rod (27) is arranged on the other side of the first top plate (26), the top of second curb plate (27) has set gradually spread groove (40) and second screw (28), the third curb plate is installed on the top of second curb plate (27), the top of third roof (25) has set gradually second screw (28), second roof (24) are installed on the top of second curb plate (27), the top of second roof (24) has set gradually second screw (28).

3. The processing device of the wood board according to claim 2, wherein one end of the connecting block (20) is sequentially provided with a third screw hole (30), one end of the connecting piece (22) is provided with a rotating shaft (32), one side top of the rotating shaft (32) is provided with threads, a nut (33) is installed, one side of the rotating shaft (32) is provided with a clamping seat (34), one end of the clamping seat (34) is provided with the third screw hole (30), the interior of the first screw hole (11) is provided with a third bolt (31), one side of the rotating shaft (32) is provided with a connecting rod (35), the bottom end of the connecting rod (35) is provided with a clamping piece block (36), one end of the clamping piece block (36) is provided with a clamping piece hole (37), and the interior of the clamping piece hole (37) is provided with a clamping piece (38).

4. The processing device for the wood board according to claim 1, wherein the operation table (2) and the cover plate (4) are connected in an embedded mode, the cover plate (4) is made of stainless steel materials, the brush groove (7) and the cover plate (4) are connected in an embedded mode, the clamping groove (6) is made of PA plastic materials, the brush groove (7) is fixedly connected with the brush base (12) through a first bolt (39), the brush base (12) is connected with the brush (13) in an adhesive mode, and the brush (13) is made of nylon materials.

5. A device for processing a wood board according to claim 2, wherein the limit base (14) and the main body (1) are electrically welded, the limit base (14) is movably connected with the fixed block (17) through the fixed piece (18), the limiting base (14) is in contact connection with the sliding rod (19), the sliding rod (19) is in cuboid arrangement, and is made of cast iron, the sliding rod (19) and the connecting block (20) are connected by electric welding, the connecting block (20) and the connecting piece (22) are in contact connection, the connecting piece (22) is electrically connected with the first top plate (23), the first top plate (23) is fixedly connected with the first side plate (26) through a second bolt (29), the first top plate (23) and the first side plate (26) are made of cast iron, the connecting piece (22) is in contact connection with the second side plate (27), the second side plate (27) is fixedly connected with the second top plate (24) through a second bolt (29), the second side plate (27) is fixedly connected with the third top plate (25) through a second bolt (29), the connecting piece (22), the second side plate (27), the second top plate (24) and the third top plate (25) are made of cast iron, and the connecting piece (22) is rectangular.

6. A device for processing a wood board according to claim 3, wherein the connecting block (20) and the rotating shaft (32) are electrically welded, the connecting block (20) is fixedly connected with the clamping seat (34) through the third bolt (31), the clamping seat (34) is made of an aluminum alloy material, the connecting rod (35) is movably connected with the connecting block (20) through the rotating shaft (32) and is fixed through the nut (33), the clamping piece block (36) and the connecting rod (35) are electrically welded, the clamping piece (38) and the clamping piece block (36) are embedded, and the clamping piece (38) is made of an aluminum alloy material and is in a U-shaped arrangement.

7. A device for processing a wood board according to claim 3, wherein the clamping seat (34) is a polyhedron formed by a curved surface and a square plane, the first screw hole (11) is sequentially provided with one end of the clamping seat (34), and the curved surface of the clamping seat (34) and the curved surface of one end of the connecting rod (35) are correspondingly arranged.