Orthopedic surgery fixing support

Abstract

The invention discloses an orthopedic surgery fixing support, and particularly relates to the technical field of medical auxiliary instruments.The orthopedic surgery fixing support comprises a fixing rod, a movable groove is formed in the top end of the fixing rod, a movable rod is arranged in the movable groove, one side of the top end of the movable rod is rotationally connected with a rotating rod through a bearing, and an adjusting supporting rod is arranged at one end of the rotating rod; a connecting plate is fixedly arranged at one end of the adjusting supporting rod, and a supporting clamping mechanism is arranged on one side of the connecting plate. A first rotating block is arranged on the other side of the top end of the movable rod, and a square connecting groove is formed in one end of the first rotating block. A rotating rod and an adjusting supporting rod are driven to rotate by rotating a first rotating block and a square connecting rod, then a connecting plate and a supporting clamping mechanism can be driven to rotate, then horizontal and inclined angle adjustment of a supporting structure is achieved, and the applicability of the device is effectively improved; the legs of the patient can be conveniently placed no matter what posture the patient is, and the supporting effect is good.

Description

Technical Field

[0001] The present invention relates to the technical field of medical auxiliary instruments, and particularly relates to an orthopedic surgery fixing bracket. Background Art

[0002] Orthopedic surgery is a surgical branch involving diseases of the musculoskeletal system. Orthopedic surgeons use surgical and non-surgical means to treat musculoskeletal trauma, spinal diseases, sports injuries, degenerative diseases, infections, tumors, and congenital diseases. During the orthopedic surgery of a patient's leg, a fixing bracket is required to support the surgical process.

[0003] Currently, when the orthopedic surgery fixing bracket is actually used, most of them can only support the patient in a parallel state and cannot adjust the support angle according to the actual situation of the patient, so the applicability is not high enough, which also leads to the situation that it is inconvenient to place the legs when the patient lies flat. Summary of the Invention

[0004] The purpose of the present invention is to provide an orthopedic surgery fixing bracket to solve the above deficiencies in the technology.

[0005] To achieve the above purpose, the present invention provides the following technical solution: an orthopedic surgery fixing bracket, comprising:

[0006] A fixing rod, an activity groove is opened at the top end of the fixing rod, an activity rod is arranged inside the activity groove, the top end of the activity rod extends to the top of the fixing rod, one side of the top end of the activity rod is rotatably connected with a rotating rod through a bearing, one end of the rotating rod is provided with an adjusting support rod, one end of the adjusting support rod is fixedly provided with a connecting plate, and a support clamping mechanism is arranged on one side of the connecting plate;

[0007] A square connecting rod, the square connecting rod is fixedly arranged at one end of the rotating rod away from the adjusting support rod, a first rotating block is arranged on the other side of the top end of the activity rod, a square connecting groove is opened at one end of the first rotating block, the square connecting rod is arranged inside the square connecting groove, one end of the square connecting rod is fixedly connected with a spring, one end of the spring is fixedly connected with one end inside the square connecting groove, two limiting rods are fixedly arranged at one end of the first rotating block, and a plurality of limiting grooves are opened on the other side of the top end of the activity rod, and the two limiting rods are respectively inserted into two of the limiting grooves.

[0008] Preferably, the support clamping mechanism includes two fixed support blocks fixedly arranged on one side of the connecting plate. In the middle of the top end of the fixed support block, an arc-shaped support plate is fixedly arranged. On the top end of the arc-shaped support plate, a first rubber pad is fixedly arranged. On the top end of the fixed support block, two movable blocks are arranged. The two movable blocks are respectively arranged on both sides of the arc-shaped support plate. On the top end of the movable block, an arc-shaped clamping plate is fixedly arranged. On the inner side of the arc-shaped clamping plate, a second rubber pad is fixedly arranged. Between the bottom end of the movable block and the top end of the fixed support block, an adjusting component is arranged, which is convenient for supporting, limiting and fixing the patient's leg.

[0009] Preferably, the adjusting component includes two movable chutes opened on the top end of the fixed support block. Inside the movable chutes, movable sliders are arranged. The top ends of the two movable sliders are respectively fixedly connected with the bottom ends of the two movable blocks. Inside the two movable chutes, a bidirectional lead screw is arranged. The two ends of the bidirectional lead screw respectively pass through the two movable sliders and are respectively rotationally connected with one end inside the two movable chutes. The bidirectional lead screw is in threaded connection with the two movable sliders and the thread directions are opposite. One end of the bidirectional lead screw extends to one end of the fixed support block and is fixedly provided with a turning handle, which is convenient for adjusting the positions of the two arc-shaped clamping plates and the second rubber pad.

[0010] Preferably, a first threaded rod is arranged inside the movable slot. The bottom end of the first threaded rod passes through the bottom end of the fixed rod and is rotationally connected with the bottom end of the fixed rod. A first threaded groove is opened at the bottom end of the movable rod. The top end of the first threaded rod extends into the first threaded groove and is in threaded connection with the first threaded groove, which is convenient for adjusting the height of the movable rod and further adjusting the support height.

[0011] Preferably, a first turntable is fixedly arranged at the bottom end of the first threaded rod, which is convenient for driving the first threaded rod to rotate.

[0012] Preferably, a circular connecting groove is opened at the other end of the adjusting support rod. One end of the rotating rod extends into the circular connecting groove. A second threaded rod is arranged inside the circular connecting groove. One end of the second threaded rod passes through the rotating rod and the square connecting rod and is rotationally connected with the rotating rod and the square connecting rod. A second threaded groove is opened at one end inside the circular connecting groove. The other end of the second threaded rod extends into the second threaded groove and is in threaded connection with the second threaded groove, which is convenient for adjusting the lengths of the rotating rod and the adjusting support rod and further adjusting the positions of the left and right supports.

[0013] Preferably, a communication hole communicating with the inside of the square connecting groove is opened at the other end of the first rotating block. One end of the second threaded rod passes through the spring and the inside of the communication hole and extends to the outside of the first rotating block. A second rotating block is fixedly arranged at one end of the second threaded rod, which is convenient for driving the second threaded rod to rotate.

[0014] Preferably, a limiting sliding groove is provided on each of the front and rear walls inside the circular connecting groove. A limiting strip is integrally connected to each of the front and rear ends of the rotating rod. The two limiting strips are respectively arranged inside the two limiting sliding grooves, facilitating the limiting and guiding of the adjusting support rod.

[0015] Preferably, a fixed clamping plate is fixedly provided on one side of the fixed rod. An adjustable clamping plate is arranged at the bottom of the fixed clamping plate. The bottom end of the fixed clamping plate is rotatably connected to a third threaded rod. One end of the third threaded rod is rotatably connected to one side of the fixed rod through a bearing seat. The bottom end of the third threaded rod passes through the adjustable clamping plate and is threadedly connected to the adjustable clamping plate. A second turntable is fixedly provided at the bottom end of the third threaded rod, facilitating clamping and fixing the bracket on the edge of the patient's bed.

[0016] Preferably, a T-shaped sliding groove is provided on one side of the fixed rod. A T-shaped sliding block is arranged inside the T-shaped sliding groove. One side of the T-shaped sliding block is fixedly connected to one end of the adjustable clamping plate, facilitating the limiting and guiding of the adjustable clamping plate.

[0017] In the above technical solution, the technical effects and advantages provided by the present invention are as follows:

[0018] 1. By rotating the first rotating block and the square connecting rod, the rotating rod and the adjusting support rod are driven to rotate, and then the connecting plate and the support clamping mechanism can be driven to rotate, thereby realizing the adjustment of the horizontal and tilt angles of the support structure, effectively improving the applicability of the device, making it convenient for the patient to place the legs in any posture, and having a good support effect;

[0019] 2. By rotating the first turntable and the first threaded rod, the height of the support can be adjusted. By rotating the second rotating block and the second threaded rod, the left and right positions of the support can be adjusted, so that it can be applied to more orthopedic surgery scenarios, further improving the applicability of the bracket. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0021] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 is a schematic diagram of the overall three-dimensional sectional structure of the present invention;

[0023] Figure 3 is the Figure 2 schematic diagram of the enlarged structure A in the present invention;

[0024] Figure 4 Schematic perspective sectional view of the adjusting support rod of the present invention;

[0025] Figure 5 Schematic perspective sectional view of the rotating rod and the square connecting rod of the present invention;

[0026] Figure 6 Schematic perspective sectional view of the first rotating block of the present invention;

[0027] Figure 7 Schematic perspective view of the movable rod of the present invention;

[0028] Figure 8 Schematic perspective view of the support clamping mechanism of the present invention;

[0029] Figure 9 Schematic perspective view of the fixed support block and the adjusting assembly of the present invention.

[0030] Explanation of reference numerals:

[0031] 1, fixed rod; 2, movable groove; 3, movable rod; 4, rotating rod; 5, adjusting support rod; 6, connecting plate; 7, square connecting rod; 8, first rotating block; 9, square connecting groove; 10, spring; 11, limiting rod; 12, limiting groove; 13, fixed support block; 14, arc-shaped support plate; 15, first rubber pad; 16, movable block; 17, arc-shaped clamping plate; 18, second rubber pad; 19, movable sliding groove; 20, movable sliding block; 21, bidirectional lead screw; 22, turning handle; 23, first threaded rod; 24, first thread groove; 25, circular connecting groove; 26, second threaded rod; 27, second thread groove; 28, communication hole; 29, second rotating block; 30, limiting sliding groove; 31, limiting strip; 32, fixed clamping plate; 33, movable clamping plate; 34, third threaded rod; 35, second turntable; 36, T-shaped sliding groove; 37, T-shaped sliding block; 38, first turntable. Detailed implementation manners

[0032] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0033] The present invention provides an orthopedic surgical fixation bracket as shown in Figures 1 to 9 and includes:

[0034] A fixed rod 1, with a movable groove 2 opened at the top of the fixed rod 1. A movable rod 3 is arranged inside the movable groove 2. The top of the movable rod 3 extends to the top of the fixed rod 1. One side of the top of the movable rod 3 is rotatably connected to a rotating rod 4 through a bearing. One end of the rotating rod 4 is provided with an adjusting support rod 5. One end of the adjusting support rod 5 is fixedly provided with a connecting plate 6. A support clamping mechanism is arranged on one side of the connecting plate 6;

[0035] A square connecting rod 7 is fixedly arranged at one end of the rotating rod 4 away from the adjusting support rod 5. On the other side of the top end of the movable rod 3, there is a first rotating block 8. One end of the first rotating block 8 is provided with a square connecting groove 9. The square connecting rod 7 is arranged inside the square connecting groove 9. One end of the square connecting rod 7 is fixedly connected with a spring 10, and one end of the spring 10 is fixedly connected with one end inside the square connecting groove 9. Two limiting rods 11 are fixedly arranged at one end of the first rotating block 8. A plurality of limiting grooves 12 are opened on the other side of the top end of the movable rod 3. The two limiting rods 11 are respectively inserted into two of the limiting grooves 12.

[0036] The support and clamping mechanism includes two fixed support blocks 13 fixedly arranged on one side of the connecting plate 6. In the middle of the top end of the fixed support block 13, there is an arc-shaped support plate 14 fixedly arranged. On the top end of the arc-shaped support plate 14, there is a first rubber pad 15 fixedly arranged. Two movable blocks 16 are arranged on the top end of the fixed support block 13. The two movable blocks 16 are respectively arranged on both sides of the arc-shaped support plate 14. An arc-shaped clamping plate 17 is fixedly arranged on the top end of the movable block 16. A second rubber pad 18 is fixedly arranged on the inner side of the arc-shaped clamping plate 17. An adjusting component is arranged between the bottom end of the movable block 16 and the top end of the fixed support block 13.

[0037] The adjusting component includes two movable sliding grooves 19 opened on the top end of the fixed support block 13. Inside the movable sliding grooves 19, there are movable sliding blocks 20. The top ends of the two movable sliding blocks 20 are respectively fixedly connected with the bottom ends of the two movable blocks 16. Inside the two movable sliding grooves 19, there is a bidirectional lead screw 21. The two ends of the bidirectional lead screw 21 respectively pass through the two movable sliding blocks 20 and are respectively rotationally connected with one end inside the two movable sliding grooves 19. The bidirectional lead screw 21 is in threaded connection with the two movable sliding blocks 20 and the thread directions are opposite. One end of the bidirectional lead screw 21 extends to one end of the fixed support block 13 and is fixedly provided with a turning handle 22.

[0038] One side of the fixed rod 1 is fixedly provided with a fixed clamping plate 32. A movable clamping plate 33 is arranged at the bottom of the fixed clamping plate 32. The bottom end of the fixed clamping plate 32 is rotationally connected with a third threaded rod 34. One end of the third threaded rod 34 is rotationally connected with one side of the fixed rod 1 through a bearing seat. The bottom end of the third threaded rod 34 passes through the movable clamping plate 33 and is in threaded connection with the movable clamping plate 33. The bottom end of the third threaded rod 34 is fixedly provided with a second turntable 35. A T-shaped sliding groove 36 is opened on one side of the fixed rod 1. Inside the T-shaped sliding groove 36, there is a T-shaped sliding block 37. One side of the T-shaped sliding block 37 is fixedly connected with one end of the movable clamping plate 33.

[0039] Place the movable splint 33 and the fixed splint 32 at the top and bottom of the patient's bed edge. Rotate the second turntable 35, and the second turntable 35 drives the third threaded rod 34 to rotate. Since the third threaded rod 34 is threadedly connected to the movable splint 33, the movable splint 33 moves upward as the third threaded rod 34 rotates. In this way, the fixed splint 32 and the movable splint 33 will clamp and fix on the patient's bed edge, and then the device can be fixed on the patient's bed edge.

[0040] Pull the first rotating block 8 outward. The first rotating block 8 drives the two limiting rods 11 out of the two limiting grooves 12. At the same time, the first rotating block 8 will stretch the spring 10. Rotate the first rotating block 8, and the first rotating block 8 drives the square connecting rod 7 and the rotating rod 4 to rotate. The rotating rod 4 drives the limiting strip 31 and the adjusting support rod 5 to rotate. The adjusting support rod 5 drives the connecting plate 6 to rotate. The connecting plate 6 drives the two fixed support blocks 13 to rotate. In this way, the inclination angles of the connecting plate 6 and the two fixed support blocks 13 can be adjusted. When the angle is suitable for supporting the patient's leg, release the first rotating block 8, and the first rotating block 8 rebounds under the elastic force of the spring 10. At this time, the two limiting rods 11 will re-insert into the two new limiting grooves 12. Place the patient's leg on the arc-shaped support plate 14 and the first rubber pad 15 at the top of the two fixed support blocks 13. Rotate the handle 22, and the handle 22 drives the bidirectional screw rod 21 to rotate. Since the bidirectional screw rod 21 is threadedly connected to the two movable sliders 20, the two movable sliders 20 approach each other as the bidirectional screw rod 21 rotates. The two movable sliders 20 drive the two movable blocks 16 to approach each other. The two movable blocks 16 drive the two arc-shaped clamping plates 17 and the second rubber pad 18 to approach each other. The two arc-shaped clamping plates 17 and the second rubber pad 18 will clamp and limit the patient's leg for fixation. In this way, the patient's leg can be supported and fixed.

[0041] The present invention drives the rotating rod 4 and the adjusting support rod 5 to rotate by rotating the first rotating block 8 and the square connecting rod 7, and then can drive the connecting plate 6 and the support clamping mechanism to rotate, thereby realizing the adjustment of the horizontal and inclination angles of the support structure, effectively improving the applicability of the device, making it convenient for the patient to place the leg in any posture, and having a good support effect. This embodiment specifically solves the problem that in the prior art, most orthopedic surgical fixation brackets can only support the patient in a parallel state during actual use, cannot adjust the support angle according to the actual situation of the patient, and the applicability is not high enough. This also leads to the problem that when the patient lies flat, it is not convenient to place the leg.

[0042] The present invention provides as Figures 2 to 6An orthopedic surgery fixation bracket as shown. Inside the movable slot 2, there is a first threaded rod 23. The bottom end of the first threaded rod 23 passes through the bottom end of the fixed rod 1 and is rotatably connected to the bottom end of the fixed rod 1. At the bottom end of the movable rod 3, there is a first threaded groove 24. The top end of the first threaded rod 23 extends into the first threaded groove 24 and is threadedly connected to the first threaded groove 24. At the bottom end of the first threaded rod 23, there is a first turntable 38 fixedly provided.

[0043] At the other end of the adjusting support rod 5, there is a circular connection groove 25. One end of the rotating rod 4 extends into the circular connection groove 25. Inside the circular connection groove 25, there is a second threaded rod 26. One end of the second threaded rod 26 passes through the rotating rod 4 and the square connecting rod 7 and is rotatably connected to the rotating rod 4 and the square connecting rod 7. At one end inside the circular connection groove 25, there is a second threaded groove 27. The other end of the second threaded rod 26 extends into the second threaded groove 27 and is threadedly connected to the second threaded groove 27. At the other end of the first rotating block 8, there is a communication hole 28 communicating with the inside of the square connection groove 9. One end of the second threaded rod 26 passes through the spring 10 and the communication hole 28 and extends to the outside of the first rotating block 8. At one end of the second threaded rod 26, there is a second turntable 29 fixedly provided. On the front and rear walls inside the circular connection groove 25, there is a limit sliding groove 30 each. At the front and rear ends of the rotating rod 4, there is a limit strip 31 integrally connected each. The two limit strips 31 are respectively arranged inside the two limit sliding grooves 30.

[0044] Rotate the first turntable 38. The first turntable 38 drives the first threaded rod 23 to rotate. Since the first threaded rod 23 is threadedly connected to the first threaded groove 24, the movable rod 3 moves upward as the first threaded rod 23 rotates. The movable rod 3 drives the rotating rod 4 and the adjusting support rod 5 to move upward. The adjusting support rod 5 drives the connecting plate 6 and the support clamping mechanism to move upward. In this way, the support height can be adjusted. Rotate the second turntable 29. The second turntable 29 drives the second threaded rod 26 to rotate. Since the second threaded rod 26 is threadedly connected to the second threaded groove 27, the adjusting support rod 5 moves to one side as the second threaded rod 26 rotates. The adjusting support rod 5 drives the connecting plate 6 and the support clamping mechanism to move to one side. In this way, the support position in the left - right direction can be adjusted. In the present invention, by rotating the first turntable 38 and the first threaded rod 23, the support height can be adjusted, and by rotating the second turntable 29 and the second threaded rod 26, the left - right position of the support can be adjusted. In this way, it can be applied to more orthopedic surgery scenarios, and further improves the applicability of the bracket.

[0045] Only certain exemplary embodiments of the present invention have been described above by way of illustration. Without doubt, for those of ordinary skill in the art, the described embodiments can be modified in various different ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An orthopedic surgery fixation bracket, characterized in that: include: A fixed rod (1), wherein a movable groove (2) is provided at the top of the fixed rod (1), a movable rod (3) is provided inside the movable groove (2), the top of the movable rod (3) extends to the top of the fixed rod (1), one side of the top of the movable rod (3) is rotatably connected to a rotating rod (4) via a bearing, one end of the rotating rod (4) is provided with an adjusting support rod (5), one end of the adjusting support rod (5) is fixedly provided with a connecting plate (6), and one side of the connecting plate (6) is provided with a supporting clamping mechanism; A square connecting rod (7), wherein the square connecting rod (7) is fixedly arranged at one end of the rotating rod (4) away from the adjusting support rod (5); a first rotating block (8) is arranged on the other side of the top of the movable rod (3); a square connecting groove (9) is opened at one end of the first rotating block (8); the square connecting rod (7) is arranged inside the square connecting groove (9); a spring (10) is fixedly connected to one end of the square connecting rod (7); one end of the spring (10) is fixedly connected to one end inside the square connecting groove (9); two limiting rods (11) are fixedly arranged at one end of the first rotating block (8); a plurality of limiting grooves (12) are opened at the other side of the top of the movable rod (3); two limiting rods (11) are respectively inserted into two of the limiting grooves (12).

2. The orthopedic surgery fixation bracket according to claim 1, characterized in that: The support clamping mechanism comprises two fixed support blocks (13) fixedly arranged on one side of the connecting plate (6); an arc-shaped support plate (14) is fixedly arranged at the middle of the top of the fixed support block (13); a first rubber pad (15) is fixedly arranged at the top of the arc-shaped support plate (14); two movable blocks (16) are arranged at the top of the fixed support block (13); the two movable blocks (16) are respectively arranged on both sides of the arc-shaped support plate (14); an arc-shaped clamping plate (17) is fixedly arranged at the top of the movable block (16); a second rubber pad (18) is fixedly arranged on the inner side of the arc-shaped clamping plate (17); and an adjustment component is arranged between the bottom end of the movable block (16) and the top of the fixed support block (13).

3. The orthopedic surgery fixation bracket according to claim 2, characterized in that: The adjustment component comprises two movable slide grooves (19) opened at the top of the fixed support block (13), a movable slider (20) is arranged inside the movable slide groove (19), the tops of the two movable sliders (20) are respectively fixedly connected to the bottoms of the two movable blocks (16), a bidirectional screw rod (21) is arranged inside the two movable slide grooves (19), two ends of the bidirectional screw rod (21) respectively pass through the two movable sliders (20) and are respectively rotatably connected to one end inside the two movable slide grooves (19), the bidirectional screw rod (21) and the two movable sliders (20) are both connected by threads and the threads are in opposite directions, and one end of the bidirectional screw rod (21) extends to one end of the fixed support block (13) and is fixedly provided with a turning handle (22).

4. The orthopedic surgery fixation bracket according to claim 1, characterized in that: A first threaded rod (23) is provided inside the movable groove (2), the bottom end of the first threaded rod (23) passes through the bottom end of the fixed rod (1) and is rotatably connected to the bottom end of the fixed rod (1), and a first threaded groove (24) is provided at the bottom end of the movable rod (3), the top end of the first threaded rod (23) extends into the first threaded groove (24) and is threadably connected to the first threaded groove (24).

5. The orthopedic surgery fixation bracket according to claim 4, characterized in that: A first rotating disk (38) is fixedly provided at the bottom end of the first threaded rod (23).

6. The orthopedic surgery fixation bracket according to claim 1, characterized in that: The other end of the adjusting support rod (5) is provided with a circular connecting groove (25), one end of the rotating rod (4) extends into the circular connecting groove (25), a second threaded rod (26) is provided inside the circular connecting groove (25), one end of the second threaded rod (26) passes through the rotating rod (4) and the square connecting rod (7) and is rotatably connected between the rotating rod (4) and the square connecting rod (7), a second threaded groove (27) is provided at one end inside the circular connecting groove (25), the other end of the second threaded rod (26) extends into the second threaded groove (27) and is threadedly connected to the second threaded groove (27).

7. The orthopedic surgery fixation bracket according to claim 6, characterized in that: The other end of the first rotating block (8) is provided with a connecting hole (28) which is connected to the interior of the square connecting groove (9); one end of the second threaded rod (26) passes through the spring (10) and the interior of the connecting hole (28) and extends to the outside of the first rotating block (8); and one end of the second threaded rod (26) is fixedly provided with a second rotating block (29).

8. The orthopedic surgery fixation bracket according to claim 6, characterized in that: The front and rear walls of the circular connecting groove (25) are each provided with a limiting sliding groove (30), the front and rear ends of the rotating rod (4) are each integrally connected with a limiting strip (31), and the two limiting strips (31) are respectively arranged inside the two limiting sliding grooves (30).

9. The orthopedic surgery fixation bracket according to claim 1, characterized in that: A fixed clamping plate (32) is fixedly provided on one side of the fixed rod (1), a movable clamping plate (33) is provided at the bottom of the fixed clamping plate (32), a third threaded rod (34) is rotatably connected to the bottom end of the fixed clamping plate (32), one end of the third threaded rod (34) is rotatably connected to one side of the fixed rod (1) via a bearing seat, the bottom end of the third threaded rod (34) passes through the movable clamping plate (33) and is threadedly connected to the movable clamping plate (33), and a second turntable (35) is fixedly provided at the bottom end of the third threaded rod (34).

10. The orthopedic surgery fixation bracket according to claim 9, characterized in that: A T-shaped slide groove (36) is provided on one side of the fixed rod (1), a T-shaped slide block (37) is provided inside the T-shaped slide groove (36), and one side of the T-shaped slide block (37) is fixedly connected to one end of the movable clamping plate (33).

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