A multifunctional one-piece bracket rolling fixture

Abstract

The present invention discloses a multifunctional one-piece bracket rolling clamp, which belongs to the technical field of rolling clamps, and includes a connecting plate and a holding plate, wherein the rear side of the connecting plate is fixedly connected to the front side of the holding plate. The present invention sets a connecting plate, a holding plate, a movable hole, a movable groove, a movable hole, a positioning device, a holding rod, a fixed shell, a first clamping plate, and a second clamping plate for coordinated use. The push plate moves to drive the connecting rod to withdraw, and the connecting rod moves to drive the first clamping plate to clamp the plate. Because the extrusion plate at the rear side of the push plate moves, the holding rod moves to a suitable position, and then the pull plate is released. The second spring undergoes elastic deformation to drive the movable plate back to its original position. The movable plate moves to drive two clamping rods to penetrate the fixed shell and insert into the clamping groove at a suitable position, so that the first clamping plate can be fixed in position. The multifunctional one-piece bracket rolling clamp has the advantages of positioning clamping and angle-changing clamping, and is worthy of promotion.

Description

Technical Field

[0001] The invention belongs to the technical field of rolling clamps, and in particular relates to a multifunctional one-piece bracket rolling clamp. Background Art

[0002] The rolling clamp is used to assist the staff, which can increase the staff's efficiency in production and greatly increase the staff's safety at work. The metal that has just been heated will not burn the user, because the clamp is relatively long and the human skin is farther away from the heat source, so people will not feel the burning sensation. In summary, when the existing one-piece bracket rolling clamp is used to clamp the heated plate, the user needs to use both arms to continuously exert force to ensure that the plate does not fall. Because the workload in the factory is large in a day, when working until the evening, the arms are almost in a state of weakness. Once the arms are weak and the heated plate falls to the ground, the plate will be damaged. If the plate falls on the legs or feet, it will cause physical injury. Moreover, when clamping special-shaped plates, ordinary clamps cannot change the clamping angle, and the clamping will be relatively unstable. Summary of the invention

[0003] In view of the problems existing in the prior art, the present invention provides a multifunctional one-piece bracket rolling clamp, which has the advantages of positioning clamping and angle-changing clamping, and solves the problem that when the existing one-piece bracket rolling clamp is used to clamp the heated plate, the user needs to use both arms to continuously exert force to ensure that the plate does not fall. Because the daily workload in the factory is large, when working until the evening, the arms are almost in a state of weakness. Once the arms are weak and the heated plate falls to the ground, not to mention the damage to the plate, if the plate falls on the legs or feet, it will cause physical harm. Moreover, when clamping special-shaped plates, ordinary clamps cannot change the clamping angle, and the clamping will be relatively unstable.

[0004] The present invention is implemented as follows: a multifunctional one-piece bracket rolling clamp comprises a connecting plate and a holding plate, the rear side of the connecting plate is fixedly connected to the front side of the holding plate, the front side of the connecting plate is provided with a movable hole, the rear side of the movable hole is provided with a movable groove, the rear side of the movable groove is provided with a moving hole, the inner cavity of the movable groove is provided with a positioning device, the inner cavity of the moving hole is movably connected with a holding rod, the surface of the holding rod is fixedly connected with a fixed shell, the front side of the connecting plate is movably connected with a first clamping plate, the left side of the connecting plate is fixedly connected with a second clamping plate, the rear side of the first clamping plate is provided with a turning and clamping device, the first clamping plate and the second clamping plate are fixedly connected on opposite sides thereof with a first tooth, the front side of the connecting plate is fixedly connected with a second tooth, the inner cavity of the movable hole is movably connected with a connecting rod used in conjunction with the first clamping plate, and the front side of the connecting rod passes through the movable hole and is movably connected to the first clamping plate.

[0005] As a preferred embodiment of the present invention, both the left and right sides of the rear side of the connecting plate are provided with card slots, and the number of the card slots is multiple and evenly distributed on the left and right sides of the rear side of the connecting plate.

[0006] As a preferred embodiment of the present invention, the inner cavity of the fixed shell is movably connected to a movable plate, the left and right sides of the rear side of the movable plate are fixedly connected to a first spring, the left and right sides of the front side of the movable plate are fixedly connected to a card rod used in conjunction with the card slot, and the front side of the card rod passes through the fixed shell and extends to the inner cavity of the card slot.

[0007] As a preferred embodiment of the present invention, a movable limiting hole is opened at the bottom of the fixed shell, the inner cavity of the movable limiting hole is movably connected with a pulling plate, and the top of the pulling plate passes through the movable limiting hole and is fixedly connected to the movable plate.

[0008] As a preferred embodiment of the present invention, the positioning device includes a push plate, the front side of the push plate is fixedly connected to the connecting rod, the front side of the push plate is fixedly connected to a second spring, the rear side of the push plate is movably connected to an extrusion plate via a rotating shaft, and the rear side of the extrusion plate is movably connected to the grip rod via a rotating shaft.

[0009] As a preferred embodiment of the present invention, a torsion groove is provided on the front side of the connecting rod, and the inner cavity of the torsion groove is movably connected to the torsion rod.

[0010] As a preferred embodiment of the present invention, the rotating and clamping device includes a threaded hole, the inner cavity of the threaded hole is movably connected with a torsion bolt, the side of the torsion rod close to the torsion bolt is provided with a threaded groove used in conjunction with the torsion bolt, and the side of the torsion rod close to the inner wall of the threaded groove is in contact with the inner wall of the threaded groove.

[0011] As a preferred embodiment of the present invention, the number of the first teeth is multiple and evenly distributed on a side opposite to the first clamping plate and the second clamping plate, and the number of the second teeth is multiple and evenly distributed on a front side of the connecting plate.

[0012] As a preferred embodiment of the present invention, a rubber sweat-absorbing pad is provided on the surface of the grip.

[0013] As a preferred embodiment of the present invention, positioning holes are provided on the front and rear sides of the top of the grip rod, a first positioning rod is fixedly connected to the bottom of the movable groove for use in conjunction with the positioning hole, and a second positioning rod is fixedly connected to the bottom of the holding plate for use in conjunction with the positioning hole, and the first positioning rod and the second positioning rod are in contact with the inner wall of the positioning hole on one side close to the inner wall of the positioning hole.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The present invention sets a connecting plate, a holding plate, a movable hole, a movable groove, a movable hole, a positioning device, a holding rod, a fixed shell, a first clamping plate and a second clamping plate for coordinated use. After the push plate moves to drive the connecting rod to withdraw, and the connecting rod moves to drive the first clamping plate to clamp the plate, the movement of the extrusion plate on the rear side of the push plate drives the holding rod to move to a suitable position, and then the pull plate is released, the second spring undergoes elastic deformation to drive the movable plate back to its original position, and the movement of the movable plate drives the two clamping rods to penetrate the fixed shell and insert into the clamping groove at a suitable position, so that the first clamping plate can be fixed in position. The multifunctional one-piece bracket rolling clamp has the advantages of positioning clamping and angle-changing clamping, and is worthy of promotion.

[0016] 2. The present invention provides card slots, and the card rods are inserted into the card slots at different positions, so that the grip rods can be fixed at different positions, thereby playing a role in clamping plates of different sizes.

[0017] 3. The present invention provides a movable plate, a first spring and a clamping rod. When the user needs to fix the position of the grip, the movable plate is driven to move in the fixed shell by the pull plate. The movement of the movable plate drives the clamping rod to pass through the storage slot into the clamping slot, so that the position of the grip can be fixed. The pressure of the spring on the movable plate ensures that the clamping rod will not fall off.

[0018] 4. The present invention provides a movable limiting hole and a pulling plate. When the pulling plate is pulled to drive the movable plate to move in the fixed shell, the movable limiting hole can limit the position of the pulling plate, and the movable plate will not shake when the pulling plate moves.

[0019] 5. The present invention provides a positioning device. After the first clamping plate contacts the plate, the second spring exerts pressure on the push plate, and the push plate automatically drives the first extrusion plate clamping plate. The extrusion plate is driven to move by the grip rod, and the push plate can be quickly moved.

[0020] 6. The present invention provides a torsion groove and a torsion rod. When the first clamping plate is rotated, the shape of the torsion rod determines that the torsion rod will not separate when rotating in the torsion groove.

[0021] 7. The present invention provides a rotating clamping device. When the first clamping plate is in normal use, the position of the first clamping plate can be fixed by twisting the bolt inserted into the threaded groove at the top of the torsion rod. When the first clamping plate needs to clamp a special-shaped plate, the first clamping plate can be flipped to fix it.

[0022] 8. The present invention provides the first teeth and the second teeth. After the first clamping plate and the connecting plate clamp the plate, the plate can be clamped more tightly by the multiple first teeth, so that the plate will not move easily.

[0023] 9. The present invention provides a rubber sweat-absorbing pad. When the gripping rod is gripped and moved downward to drive the squeezing plate to move, the rubber sweat-absorbing pad can increase the friction between the palm and the gripping rod, so that the palm will not slip, and can also absorb sweat on the palm.

[0024] 10. The present invention provides a positioning hole, a first positioning rod and a second positioning rod. When the handle moves up and down, the first positioning rod and the second positioning rod can limit the position of the handle, and the handle will not shake back and forth when moving up and down. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure provided by an embodiment of the present invention;

[0026] Figure 2 is a stereoscopic schematic diagram provided by an embodiment of the present invention;

[0027] Figure 3 is a left sectional view provided by an embodiment of the present invention;

[0028] Figure 4 is a three-dimensional schematic diagram of a movable plate provided by an embodiment of the present invention;

[0029] Figure 5 is a left sectional view of a connecting rod provided by an embodiment of the present invention;

[0030] Figure 6 It is a three-dimensional schematic diagram of a torsion rod provided by an embodiment of the present invention.

[0031] In the figure: 1, connecting plate; 2, holding plate; 3, movable hole; 4, movable groove; 5, moving hole; 6, positioning device; 7, holding rod; 8, fixed shell; 9, first clamping plate; 10, second clamping plate; 11, rotating clamping device; 12, first tooth; 13, second tooth; 14, connecting rod; 15, clamping groove; 16, movable plate; 17, first spring; 18, clamping rod; 19, movable limiting hole; 20, pulling plate; 601, pushing plate; 602, second spring; 603, squeezing plate; 21, torsion groove; 22, torsion rod; 1101, threaded hole; 1102, twisting bolt; 1103, threaded groove; 23, rubber sweat-absorbing pad; 24, positioning hole; 25, first positioning rod; 26, second positioning hole. DETAILED DESCRIPTION

[0032] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples and described in detail with reference to the accompanying drawings.

[0033] The structure of the present invention is described in detail below in conjunction with the accompanying drawings.

[0034] like Figures 1 to 6As shown, a multifunctional one-piece bracket rolling clamp provided by an embodiment of the present invention comprises a connecting plate 1 and a holding plate 2, the rear side of the connecting plate 1 is fixedly connected to the front side of the holding plate 2, a movable hole 3 is opened on the front side of the connecting plate 1, a movable groove 4 is opened on the rear side of the movable hole 3, a moving hole 5 is opened on the rear side of the movable groove 4, a positioning device 6 is provided in the inner cavity of the movable groove 4, a holding rod 7 is movably connected to the inner cavity of the moving hole 5, a fixed shell 8 is fixedly connected to the surface of the holding rod 7, a first clamping plate 9 is movably connected to the front side of the connecting plate 1, a second clamping plate 10 is fixedly connected to the left side of the connecting plate 1, a turning clamping device 11 is provided on the rear side of the first clamping plate 9, first teeth 12 are fixedly connected to the opposite sides of the first clamping plate 9 and the second clamping plate 10, a second tooth 13 is fixedly connected to the front side of the connecting plate 1, a connecting rod 14 used in conjunction with the first clamping plate 9 is movably connected to the inner cavity of the movable hole 3, and the front side of the connecting rod 14 passes through the movable hole 3 and is movably connected to the first clamping plate 9.

[0035] refer to Figure 4 A card slot 15 is provided on the left and right sides of the rear side of the connecting plate 1 , and the card slots 15 are multiple and evenly distributed on the left and right sides of the rear side of the connecting plate 1 .

[0036] By adopting the above solution, by providing the card slots 15 and inserting the card rods 18 into the card slots 15 at different positions, the gripping rods 7 can be fixed at different positions, thereby playing the role of clamping plates of different sizes.

[0037] refer to Figure 2 The inner cavity of the fixed shell 8 is movably connected to a movable plate 16, and the left and right sides of the rear side of the movable plate 16 are fixedly connected to a first spring 17, and the left and right sides of the front side of the movable plate 16 are fixedly connected to a clamping rod 18 used in conjunction with the clamping slot 15, and the front side of the clamping rod 18 passes through the fixed shell 8 and extends to the inner cavity of the clamping slot 15.

[0038] The above scheme is adopted: by setting the movable plate 16, the first spring 17 and the clamping rod 18, when the user needs to fix the position of the handle 7, the movable plate 16 is driven to move in the fixed shell 8 by the pull plate 20, and the movement of the movable plate 16 drives the clamping rod 18 to pass through the storage groove to the clamping groove 15, so that the position of the handle 7 can be fixed, and the pressure of the spring on the movable plate 16 plays a role in preventing the clamping rod 18 from detaching.

[0039] refer to Figure 3 A movable limiting hole 19 is opened at the bottom of the fixed shell 8, and a pull plate 20 is movably connected to the inner cavity of the movable limiting hole 19. The top of the pull plate 20 passes through the movable limiting hole 19 and is fixedly connected to the movable plate 16.

[0040] The above scheme is adopted: by setting the movable limiting hole 19 and the pulling plate 20, when the pulling plate 20 is pulled to drive the movable plate 16 to move in the fixed shell 8, the movable limiting hole 19 can limit the position of the pulling plate 20, and the pulling plate 20 will not shake when it moves to drive the movable plate 16 to move.

[0041] refer to Figure 3 The positioning device 6 includes a push plate 601, the front side of the push plate 601 is fixedly connected to the connecting rod 14, the front side of the push plate 601 is fixedly connected to the second spring 602, the rear side of the push plate 601 is movably connected to the extrusion plate 603 through a rotating shaft, and the rear side of the extrusion plate 603 is movably connected to the grip rod 7 through a rotating shaft.

[0042] The above scheme is adopted: by setting the positioning device 6, after the first clamping plate 9 contacts the plate, the push plate 601 will automatically drive the first extrusion plate 603 to clamp the plate through the pressure of the second spring 602, and the extrusion plate 603 is driven to move by the grip rod 7, so the push plate 601 can be quickly moved.

[0043] refer to Figure 5 A torsion groove 21 is provided on the front side of the connecting rod 14 , and a torsion rod 22 is movably connected to the inner cavity of the torsion groove 21 .

[0044] With the above solution, by providing the torsion groove 21 and the torsion rod 22 , when the first clamping plate 9 is rotated, the shape of the torsion rod 22 determines that the torsion rod 22 will not be separated when rotating in the torsion groove 21 .

[0045] refer to Figure 5 The turning clamping device 11 includes a threaded hole 1101, and the inner cavity of the threaded hole 1101 is movably connected with a torsion bolt 1102. A threaded groove 1103 used in conjunction with the torsion bolt 1102 is provided on the side of the torsion rod 22 close to the torsion bolt 1102, and the side of the torsion rod 22 close to the inner wall of the threaded groove 1103 contacts the inner wall of the threaded groove 1103.

[0046] The above scheme is adopted: by setting up the turning clamping device 11, when the first clamping plate 9 is used normally, the position of the first clamping plate 9 can be fixed by twisting the bolt 1102 inserted into the threaded groove 1103 at the top of the torsion rod 22. When the first clamping plate 9 needs to clamp a special-shaped plate, the first clamping plate 9 can be flipped to fix it.

[0047] refer to Figure 2 There are multiple first teeth 12 , which are evenly distributed on a side opposite to the first clamping plate 9 and the second clamping plate 10 , and there are multiple second teeth 13 , which are evenly distributed on a front side of the connecting plate 1 .

[0048] By adopting the above solution: by setting the first teeth 12 and the second teeth 13, after the first clamping plate 9 and the connecting plate 1 clamp the plate, the plate can be clamped more tightly by the multiple first teeth 12, so that the plate will not move easily.

[0049] refer to Figure 1 The surface of the handle 7 is covered with a rubber sweat-absorbing pad 23.

[0050] The above solution is adopted: by setting the rubber sweat-absorbing pad 23, when the gripping rod 7 is gripped and moved downward to drive the squeezing plate 603 to move, the rubber sweat-absorbing pad 23 can increase the friction between the palm and the gripping rod 7, the palm will not slip, and the sweat on the palm can also be absorbed.

[0051] refer to Figure 3 A positioning hole 24 is provided on the front and rear sides of the top of the gripping rod 7, a first positioning rod 25 is fixedly connected to the bottom of the movable groove 4 for use in conjunction with the positioning hole 24, and a second positioning rod 26 is fixedly connected to the bottom of the gripping plate 2 for use in conjunction with the positioning hole 24, and the first positioning rod 25 and the second positioning rod 26 are in contact with the inner wall of the positioning hole 24 on one side close to the inner wall of the positioning hole 24.

[0052] By adopting the above solution, by providing the positioning hole 24, the first positioning rod 25 and the second positioning rod 26, when the handle 7 moves up and down, the first positioning rod 25 and the second positioning rod 26 can limit the position of the handle 7, and no shaking back and forth occurs when moving up and down.

[0053] Working principle of the present invention:

[0054] When in use, after the plate material required at the bottom of the one-piece bracket is heated at high temperature, the gripping plate 2 is gripped so that the fingers grip the rubber sweat-absorbing pad 23 on the surface of the gripping rod 7, and then the pull plate 20 is pressed with the fingers to move in the movable limiting hole 19. The movement of the pull plate 20 drives the movable plate 16 to move in the inner cavity of the fixed shell 8. The movable plate 16 moves to squeeze the two first springs 17 and drives the clamping rod 18 to move out of the clamping slot 15 to a suitable position. The gripping rod 7 moves upward in the movable hole 5 to drive the squeezing plate 603 to squeeze the push plate 601 to move in the movable slot 4. The push plate 601 moves to squeeze the second spring 602 and drives the connecting rod 14 to move forward. After the connecting rod 14 moves and drives the first clamping plate 9 to move to a suitable position, the first clamping plate 9 and the connecting plate 1 are in contact with the plate material, and then the gripping rod 7 is released. The second spring 602 undergoes elastic deformation and drives the push plate 601 to move backward. The push plate 601 moves and drives the connecting rod 14 to withdraw. The movement of the connecting rod 14 drives the first clamping plate 9 to move to a suitable position. After the plate 9 clamps the plate, the movement of the extrusion plate 603 on the rear side of the push plate 601 drives the gripping rod 7 to move to the appropriate position, and then the pull plate 20 is released, the second spring 602 undergoes elastic deformation and drives the movable plate 16 back to its original position, and the movable plate 16 moves and drives the two clamping rods 18 to penetrate the fixed shell 8 and insert into the clamping groove 15 at the appropriate position, so that the first clamping plate 9 can be fixed in position. When the user needs to clamp the plate of strange shape at an angle, the torsion bolt 1102 is twisted with a wrench to disengage from the threaded groove 1103 at the top of the torsion rod 22. After the torsion bolt 1102 is disengaged from the threaded groove 1103, the first clamping plate 9 is pulled to drive the torsion rod 22 to flip to the appropriate position in the torsion groove 21, and then the torsion bolt 1102 is twisted with a wrench to insert into the corresponding threaded groove 1103, so that the position of the first clamping plate 9 can be adjusted and fixed, thereby improving the creativity of the multi-functional one-piece bracket rolling clamp and facilitating user use.

[0055] To sum up: the multifunctional one-piece bracket rolling clamp is used in coordination with the setting of the connecting plate 1, the holding plate 2, the movable hole 3, the movable groove 4, the movable hole 5, the positioning device 6, the gripping rod 7, the fixed shell 8, the first clamping plate 9 and the second clamping plate 10. The push plate 601 moves to drive the connecting rod 14 to withdraw. After the connecting rod 14 moves to drive the first clamping plate 9 to clamp the plate, the movement of the extrusion plate 603 on the rear side of the push plate 601 will drive the gripping rod 7 to move to a suitable position. Then the pull plate 20 is released, and the second spring 602 undergoes elastic deformation to drive the movable plate 16 back to its original position. The movable plate 16 moves to drive the two clamping rods 18 to penetrate the fixed shell 8 and insert into the clamping groove 15 at a suitable position, so as to fix the position of the first clamping plate 9. The multifunctional one-piece bracket rolling clamp has the advantages of positioning clamping and angle-changing clamping, and is worthy of promotion.

[0056] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0057] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multifunctional one-piece bracket rolling fixture, comprising a connecting plate (1) and a holding plate (2), characterized in that: The rear side of the connecting plate (1) is fixedly connected to the front side of the holding plate (2); a movable hole (3) is provided on the front side of the connecting plate (1); a movable groove (4) is provided on the rear side of the movable hole (3); a movable hole (5) is provided on the rear side of the movable groove (4); a positioning device (6) is provided in the inner cavity of the movable groove (4); a gripping rod (7) is movably connected to the inner cavity of the movable hole (5); a fixed shell (8) is fixedly connected to the surface of the gripping rod (7); a first clamping plate (9) is movably connected to the front side of the connecting plate (1); a second clamping plate (10) is fixedly connected to the left side of the connecting plate (1); a rotating clamping device (11) is provided on the rear side of the first clamping plate (9); the first clamping plate (9) and the second clamping plate (10) are connected to the inner cavity of the movable hole (5); and the first clamping plate (9) and the second clamping plate (10) are fixedly connected to the front side of the connecting plate (1 ... The first teeth (12) are fixedly connected to the opposite side of the plate (10), the front side of the connecting plate (1) is fixedly connected to the second teeth (13), the inner cavity of the movable hole (3) is movably connected to a connecting rod (14) used in conjunction with the first clamping plate (9), the front side of the connecting rod (14) passes through the movable hole (3) and is movably connected to the first clamping plate (9), the left and right sides of the rear side of the connecting plate (1) are provided with card slots (15), and the number of the card slots (15) is multiple and evenly distributed on the left and right sides of the rear side of the connecting plate (1), the inner cavity of the fixed shell (8) is movably connected to a movable plate (16), the left and right sides of the rear side of the movable plate (16) are fixedly connected to the first spring (17), the movable plate (1 6) The left and right sides of the front side are fixedly connected with a clamping rod (18) used in conjunction with the clamping slot (15), the front side of the clamping rod (18) passes through the fixed shell (8) and extends to the inner cavity of the clamping slot (15), the bottom of the fixed shell (8) is provided with a movable limiting hole (19), the inner cavity of the movable limiting hole (19) is movably connected with a pulling plate (20), the top of the pulling plate (20) passes through the movable limiting hole (19) and is fixedly connected to the movable plate (16), the positioning device (6) includes a push plate (601), the front side of the push plate (601) is fixedly connected to the connecting rod (14), the front side of the push plate (601) is fixedly connected to a second spring (602), and the rear side of the push plate (601) is movably connected to an extrusion spring through a rotating shaft. The plate (603) is provided with a rear side of the extrusion plate (603) being movably connected to the gripping rod (7) via a rotating shaft, a torsion groove (21) is provided on the front side of the connecting rod (14), a torsion rod (22) is movably connected to the inner cavity of the torsion groove (21), the rotation clamping device (11) comprises a threaded hole (1101), a torsion bolt (1102) is movably connected to the inner cavity of the threaded hole (1101), a threaded groove (1103) for use with the torsion bolt (1102) is provided on a side of the torsion rod (22) close to the torsion bolt (1102), a side of the torsion rod (22) close to the inner wall of the threaded groove (1103) is in contact with the inner wall of the threaded groove (1103), the number of the first teeth (12) is multiple,and evenly distributed on the side opposite to the first clamping plate (9) and the second clamping plate (10), and the number of the second teeth (13) is multiple and evenly distributed on the front side of the connecting plate (1), the surface of the gripping rod (7) is sleeved with a rubber sweat-absorbing pad (23), the front and rear sides of the top of the gripping rod (7) are both provided with positioning holes (24), the bottom of the movable groove (4) is fixedly connected with a first positioning rod (25) used in conjunction with the positioning hole (24), the bottom of the gripping plate (2) is fixedly connected with a second positioning rod (26) used in conjunction with the positioning hole (24), and the first positioning rod (25) and the second positioning rod (26) are in contact with the inner wall of the positioning hole (24) on one side close to the inner wall of the positioning hole (24).

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