Positioning device

Abstract

The utility model discloses a positioning device which comprises a bottom plate, telescopic supporting columns are arranged at the four end corner positions of the top end of the bottom plate, a lying plate is arranged above the bottom plate, the lower end of the lying plate is fixedly connected with the telescopic ends of the telescopic supporting columns, and a headrest is fixed to the top end of one end of the lying plate. According to the positioning device provided by the utility model, through the structural design of the fastening assembly, the positioning device can be adjusted according to the lengths of the limbs of the patients when facing different patients, so that the fixing stability is improved, the positioning device can adapt to the fixation of the limbs with different thicknesses, and the application range of the device fixation is effectively expanded; and meanwhile, through the structural design of the lifting assembly, the height of the lying plate can be adjusted, so that the height can be adjusted according to the rising of the patient or some patients with disabled legs and feet, the inconvenience of the patient during examination is reduced, the convenience of the device is improved, and the practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of positioning devices, in particular to a positioning device. Background Art

[0002] The Radiology Department is an important auxiliary examination department in the hospital. In the construction of modern hospitals, the Radiology Department is a department that integrates examination, diagnosis and treatment. Many diseases in various clinical departments must be examined through radiology equipment to achieve clear diagnosis and auxiliary diagnosis. The equipment of the Radiology Department generally includes ordinary X-ray machines, computer X-ray systems, direct digital X-ray systems, computer tomography, nuclear magnetic resonance and digital subtraction angiography systems.

[0003] For example, a Chinese utility model patent (CN215017760U) discloses a limb positioning device for radiology examinations, which records: "An upper limb fixing base is fixedly connected to the bed board, and the upper limb fixing base and the upper limb fixing cover are hinged by hinges. The patient places his arm on the upper limb fixing seat, and then the upper limb fixing cover is closed. A fixing plate is fixedly connected to the upper limb fixing cover by a movable rod, and the fixing plate fixes the arm. A spring is arranged around the movable rod to adapt to arms of different thicknesses. The force generated when the spring is reset can position the arm. The patient's lower limbs are fixed by a lower limb fixing belt, which solves the problem that there is no limb positioning function device in the current radiology examination department, and achieves the effect of improving the accuracy of the examination." It also records: "In the existing technology, the examination device of the radiology department simply sets a fixing belt at the waist, which is unable to position the patient's limbs, causing the patient to move involuntarily due to tension during the examination." Technical problem.

[0004] In summary, it can be seen that the following technical problems exist in the prior art: when the above-mentioned device is positioning the patient's limbs, although it can be adjusted according to the thickness of the limbs, the lengths of the limbs of patients with different heights are different, so the fixing device is not convenient to adjust according to the length of the patient's limbs, which may easily lead to insufficient fixation of the patient's limbs. At the same time, when facing shorter patients, the height of the device cannot be adjusted, which is inconvenient for the patient to lie on the device. For this reason, the present application proposes a positioning device to provide a new technical solution to solve the technical problems mentioned in the above-mentioned patent. Utility Model Content

[0005] Based on this, it is necessary to provide a positioning device to address the above-mentioned technical problems. Through the structural design of the fastening components, it can be adjusted according to the length of the patient's limbs when facing different patients, thereby improving the stability of fixation, and can adapt to the fixation of limbs of different thicknesses, effectively improving the use range of the device fixation, and improving the practicability of the device. At the same time, through the structural design of the lifting component, the height of the lying board can be adjusted, so that the height can be adjusted according to the patient's elevation or some patients with leg and foot disabilities, thereby reducing the inconvenience of the patient during examination, improving the convenience of the device, and improving the practicability of the device.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] A positioning device is used for positioning patients in a radiology department.

[0008] The positioning device specifically comprises:

[0009] A bottom plate, wherein telescopic pillars are arranged at the four end corners of the top of the bottom plate, a lying plate is arranged at the upper position of the bottom plate, the lower end of the lying plate is fixedly connected to the telescopic end of the telescopic pillar, and a headrest is fixed at the top end of one end of the lying plate;

[0010] A fastening assembly, which is arranged at the top of the lying board and at a position corresponding to the limbs, and is used to fasten and fix the limbs;

[0011] A lifting component is arranged at the top end of the bottom plate and is used to adjust the height of the lying plate.

[0012] The cam is provided with a plurality of movable members, and the movable members are connected with the movable members by the movable members.

[0013] As a preferred embodiment of the positioning device provided by the utility model, the driving assembly includes a two-way threaded rod, the two-way threaded rod is longitudinally arranged at the inner side of the moving seat, the two-way threaded rod is rotatably connected to the moving seat, one end of the two-way threaded rod extends to the outside of the moving seat, and a rotating knob is fixed to the end of the two-way threaded rod located on the outside of the moving seat, and both ends of the two-way threaded rod located on the inner side of the moving seat are threadedly connected to a moving block, the moving block is slidably connected to the moving seat, a fixed block is fixed to the top of the moving block, the top of the fixed block extends to the outside of the top of the moving seat, the fixed block is slidably connected to the moving seat, and the top of the fixed block is fixedly connected to the arc clamping plate.

[0014] As a preferred embodiment of the positioning device provided by the utility model, the limit assembly includes a limit rod, which is vertically arranged at the inner position of one end of the sliding seat, the limit rod is slidably connected to the sliding seat, the lower end of the limit rod extends to the outer side of the lower end of the sliding seat, and a limit hole is provided on the inner side of the lying plate and at a position corresponding to the limit rod. The limit rod is plug-connected to the lying plate through the limit hole, and the other end of the limit rod extends to the outer side of one end of the moving seat. A lifting handle is fixed to the end of the limit rod located on the outer side of the moving seat, and the limit rod is slidably connected to the moving seat.

[0015] As a preferred embodiment of the positioning device provided by the utility model, the lifting assembly includes two fixed columns, the two fixed columns are respectively arranged at the middle positions at both ends of the base plate, the fixed columns are fixedly connected to the base plate, a rotating rod is horizontally arranged at the upper position of the two fixed columns, and a transmission assembly is arranged at the top of the fixed column and at the position corresponding to the fixed column.

[0016] As a preferred embodiment of the positioning device provided by the utility model, the transmission assembly includes a fixing frame, which is arranged at a position on one side of the top end of the fixing column, the fixing frame is fixedly connected to the fixing column, two ends of the rotating rod extend to the outside of one end of the fixing frame, the fixing frame is rotatably connected to the rotating rod, the inner side of the fixing column is rotatably connected with a built-in threaded sleeve, the top of the built-in threaded sleeve extends to the outside of the top end of the fixing column, the inner side of the built-in threaded sleeve is threadedly connected with a lifting screw, the outer side of the built-in threaded sleeve is located at one end of the outer side of the fixing column and a driven bevel gear is fixed, a transmission bevel gear is fixed at a position corresponding to the rotating rod and the driven bevel gear, the transmission bevel gear is meshed with the driven bevel gear, and a shaking handle is fixed to one end of the rotating rod.

[0017] As a preferred embodiment of the positioning device provided by the utility model, a connecting rod is fixed to the top end of the lifting screw rod, and both ends of the connecting rod are respectively fixedly connected to the telescopic ends of the telescopic pillars on both sides of the same end.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] The positioning device provided by the utility model can be adjusted according to the length of the patient's limbs when facing different patients through the structural design of the fastening component, thereby improving the stability of fixation and being able to adapt to the fixation of limbs of different thicknesses, effectively improving the use range of the device fixation and improving the practicability of the device. At the same time, through the structural design of the lifting component, the height of the lying board can be adjusted, so that the height can be adjusted according to the elevation of the patient or some patients with leg and foot disabilities, thereby reducing the inconvenience of the patient during examination, improving the convenience of the device, and improving the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the scheme in the utility model, a brief introduction is given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 A schematic diagram of the overall structure of the positioning device provided by the utility model;

[0022] Figure 2 A schematic diagram of the structure of the fastening assembly of the positioning device provided by the utility model;

[0023] Figure 3 A schematic diagram of the structure of the positioning device driving assembly provided by the utility model;

[0024] Figure 4 A schematic diagram of the structure of the positioning device limit assembly provided by the utility model;

[0025] Figure 5 A schematic diagram of the structure of the lifting assembly of the positioning device provided by the utility model;

[0026] Figure 6 Positioning device provided by the utility model Figure 5 Enlarged view of point A in the middle.

[0027] The markings in the figure are as follows:

[0028] 1. Bottom plate; 2. Lying plate; 3. Telescopic support; 4. Headrest; 5. Fastening assembly; 6. Lifting assembly; 7. Fixed rod; 8. Sliding seat; 9. Moving seat; 10. Arc clamping plate; 11. Rubber placement pad; 12. Fixed block; 13. Turn knob; 14. Bidirectional threaded rod; 15. Moving block; 16. Connecting block; 17. Limit rod; 18. Lifting handle; 19. Spring; 20. Anti-slip block; 21. Limit hole; 22. Turn rod; 23. Connecting rod; 24. Fixed column; 25. Fixed frame; 26. Shake handle; 27. Built-in threaded sleeve; 28. Driven bevel gear; 29. ​​Lifting screw; 30. Transmission bevel gear. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0030] As described in the background technology, although the above-mentioned device can be adjusted according to the thickness of the limbs when positioning the patient's limbs, the lengths of the limbs of patients of different heights are different, so it is not convenient to adjust the fixing device according to the length of the patient's limbs, which may easily lead to insufficient fixation of the patient's limbs. At the same time, when facing shorter patients, the height of the device cannot be adjusted, which is inconvenient for the patient to lie on the device.

[0031] In order to solve this technical problem, the utility model provides a positioning device, which is used for positioning patients in the radiology department.

[0032] Specifically, please refer to Figure 1-Figure 6 , the positioning device specifically includes:

[0033] A bottom plate 1, four end corners of the top of the bottom plate 1 are provided with telescopic pillars 3, a lying plate 2 is provided above the bottom plate 1, the lower end of the lying plate 2 is fixedly connected to the telescopic end of the telescopic pillar 3, and a headrest 4 is fixed to the top end of one end of the lying plate 2;

[0034] A fastening assembly 5, which is arranged at the top of the lying board 2 and at a position corresponding to the limbs, and is used to fasten and fix the limbs;

[0035] The lifting component 6 is arranged at the top end of the bottom plate 1 and is used to adjust the height of the lying plate 2 .

[0036] The positioning device provided by the utility model can be adjusted according to the length of the patient's limbs when facing different patients through the structural design of the fastening component 5, thereby improving the stability of fixation, and can adapt to the fixation of limbs of different thicknesses, effectively improving the use range of the device fixation and improving the practicability of the device. At the same time, through the structural design of the lifting component 6, the height of the lying board 2 can be adjusted, so that the height can be adjusted according to the patient's elevation or some patients with leg and foot disabilities, thereby reducing the inconvenience of the patient during examination, improving the convenience of the device, and improving the practicability of the device.

[0037] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings.

[0038] Embodiment 1:

[0039] Please refer to Figure 1-Figure 4 A positioning device, comprising a bottom plate 1, four end corners of the top of the bottom plate 1 are provided with telescopic pillars 3, a lying plate 2 is provided above the bottom plate 1, the lower end of the lying plate 2 is fixedly connected to the telescopic end of the telescopic pillar 3, and a headrest 4 is fixed to the top of one end of the lying plate 2;

[0040] A fastening assembly 5, which is arranged at the top of the lying board 2 and at a position corresponding to the limbs, and is used to fasten and fix the limbs;

[0041] Among them, the fastening component 5 includes a fixing rod 7, a slide groove is opened on the inner side of the lying plate 2 and at a position corresponding to the fixing rod 7, a sliding seat 8 is arranged on the inner side of the slide groove, and the sliding seat 8 is slidably connected to the lying plate 2, and a fixing rod 7 is arranged laterally on the inner side of the slide groove, so that the sliding seat 8 moves more stably and smoothly, the fixing rod 7 is fixedly connected to the lying plate 2, the fixing rod 7 is slidably connected to the sliding seat 8, and the inner side of the sliding seat 8 is arranged on a limiting component, and then the sliding seat 8 is limited by the limiting component to prevent the sliding seat 8 from sliding, and the top of the lying plate 2 and the position corresponding to the sliding seat 8 are A moving seat 9 is provided, and the moving seat 9 is fixedly connected to the sliding seat 8 through a connecting block 16, so that when the sliding seat 8 moves, it can drive the moving seat 9 to move, a rubber placement pad 11 is fixed to the top of the moving seat 9, and arc-shaped clamping plates 10 are provided at the top of the moving seat 9 and at positions on both sides of the rubber placement pad 11, and the limbs are clamped and fastened by the arc-shaped clamping plates 10, and a driving component is provided on the inner side of the moving seat 9, and the arc-shaped clamping plates 10 are connected to the moving seat 9 through the driving component, and then the two arc-shaped clamping plates 10 are driven to move by the driving component;

[0042] The two ends of the two-way threaded rod 14 located on the inner side of the moving seat 9 are both threadedly connected with a moving block 15, and the moving block 15 can be moved by the rotation of the two-way threaded rod 14. The moving block 15 is slidably connected to the moving seat 9. The top of the moving block 15 is fixed with a fixed block 12, and the top of the fixed block 12 extends to the outside of the top of the moving seat 9. The fixed block 12 is slidably connected to the moving seat 9. The top of the fixed block 12 is fixedly connected to the arc clamping plate 10, and the arc clamping plate 10 can be driven to move by the fixed block 12 when the moving block 15 moves.

[0043] Specifically, the limiting assembly includes a limiting rod 17, and the limiting rod 17 is used to limit the lifting handle 18. The limiting rod 17 is vertically arranged at the inner position of one end of the sliding seat 8, and the limiting rod 17 is slidably connected to the sliding seat 8. The lower end of the limiting rod 17 extends to the outer side of the lower end of the sliding seat 8. A limiting hole 21 is provided on the inner side of the lying plate 2 and at a position corresponding to the limiting rod 17. The limiting rod 17 is plug-connected to the lying plate 2 through the limiting hole 21. The other end of the limiting rod 17 extends to the outer side of one end of the moving seat 9. The lifting handle 18 is fixed to the end of the limiting rod 17 located on the outer side of the moving seat 9. Then, by pulling or moving the lifting handle 18, the limiting rod 17 can be driven to move, or the moving seat 9 and the sliding seat 8 can be driven to move by the limiting rod 17, and the limiting rod 17 is slidably connected to the moving seat 9.

[0044] It can be seen that when in use, the patient first lies in the middle position of the lying board 2, and then the movable seat 9 is adjusted according to the length of the patient's limbs. When adjusting, first pull the lifting handle 18 upwards so that the lifting handle 18 drives the limiting rod 17 to move upwards. When the limiting rod 17 moves to disengage from the limiting hole 21, the limiting rod 17 cancels the limit on the sliding seat 8, and then pushes the lifting handle 18 so that the lifting handle 18 drives the sliding seat 8 and the movable seat 9 to move along the axial direction of the fixed rod 7. When it is adjusted to a suitable position, release the lifting handle 18. At this time, the anti-slip block 20 is pushed downward under the elastic action of the spring 19. When the anti-slip block 20 drives the limiting rod 17 to move, when the limiting rod 17 moves to the inner side of the limiting hole 21, the sliding is completed. The adjustment can be completed by limiting the movable seat 8 and the movable seat 9, and then the patient's limbs are placed on the top of the rubber placement pad 11, and then the rotating knob 13 is turned to make the rotating knob 13 drive the bidirectional threaded rod 14 to rotate, and when the bidirectional threaded rod 14 rotates, it drives the moving blocks 15 at both ends to move in the direction of approaching each other, so that when the moving block 15 moves, it drives the arc clamping plate 10 to move through the fixed block 12, and then the two arc clamping plates 10 are used to complete the fastening of the patient's limbs, so that when facing different patients, it can be adjusted according to the length of the patient's limbs, thereby improving the stability of the fixation, and can adapt to limbs of different thicknesses for fixation, effectively improving the use range of the device fixation, and improving the practicability of the device.

[0045] Embodiment 2:

[0046] The positioning device provided in Example 1 is further optimized. Specifically, Figure 5 and Figure 6 , a lifting component 6, which is arranged at the top end of the bottom plate 1 and is used to adjust the height of the lying plate 2;

[0047] Specifically, the lifting assembly 6 includes two fixed columns 24, which are respectively arranged at the middle positions of the two ends of the bottom plate 1, and the fixed columns 24 are fixedly connected to the bottom plate 1. A rotating rod 22 is horizontally arranged above the two fixed columns 24, and a transmission assembly is arranged at the top of the fixed columns 24 and at a position corresponding to the fixed columns 24;

[0048] Furthermore, the transmission assembly includes a fixing frame 25, which is arranged at a position on one side of the top end of the fixing column 24, and the fixing frame 25 is fixedly connected to the fixing column 24. The two ends of the rotating rod 22 extend to the outside of one end of the fixing frame 25, and then the fixing frame 25 is used to fix the rotating rod 22. The fixing frame 25 is rotatably connected to the rotating rod 22, and the inner side of the fixing column 24 is rotatably connected with a built-in threaded sleeve 27, and the top of the built-in threaded sleeve 27 extends to the outside of the top end of the fixing column 24. The inner side of the built-in threaded sleeve 27 is threadedly connected with a lifting screw 29, and then the lifting screw is driven by the rotation of the built-in threaded sleeve 27. The rod 29 moves along the axial direction of the built-in threaded sleeve 27. A driven bevel gear 28 is fixed to the outer side of one end of the built-in threaded sleeve 27 located outside the fixed column 24, and the built-in threaded sleeve 27 is rotated by the driven bevel gear 28. A transmission bevel gear 30 is fixed at a position corresponding to the driven bevel gear 28 of the rotating rod 22. The transmission bevel gear 30 is meshed and connected with the driven bevel gear 28, and the driven bevel gear 28 is driven to rotate by the transmission bevel gear 30 when the rotating rod 22 rotates. A shaking handle 26 is fixed to one end of the rotating rod 22, and the rotating rod 22 can be rotated by rotating the shaking handle 26.

[0049] Furthermore, a connecting rod 23 is fixed to the top of the lifting screw 29, and the movement of the lifting screw 29 drives the connecting rod 23 to move up and down, and the two ends of the connecting rod 23 are respectively fixedly connected to the telescopic ends of the telescopic pillars 3 on both sides of the same end, and the movement of the connecting rod 23 drives the telescopic pillars 3 to move up and down, thereby driving the lying board 2 to complete the height adjustment;

[0050] Through the above-mentioned structural design, when the height of the lying board 2 needs to be adjusted, first, the shaking handle 26 is turned so that the shaking handle 26 drives the rotating rod 22 to rotate, and when the rotating rod 22 rotates, it drives the transmission bevel gear 30 to rotate, so that when the transmission bevel gear 30 rotates, it drives the built-in threaded sleeve 27 to rotate through the driven bevel gear 28 meshing with it, and when the built-in threaded sleeve 27 rotates, it drives the lifting screw 29 threadedly connected with it to move along the axial direction of the built-in threaded sleeve 27, and when the lifting screw 29 moves, it drives the telescopic end of the telescopic support 3 to move through the connecting rod 23, thereby completing the lifting and lowering adjustment of the lying board 2, so that the height of the lying board 2 can be adjusted, so that the height can be adjusted according to the patient's elevation or some patients with leg and foot disabilities, thereby reducing the inconvenience of patients during examination, improving the convenience of the device, and improving the practicality of the device.

[0051] The use process of the positioning device provided by the utility model is as follows: when in use, the patient first lies in the middle position of the lying board 2, and then adjusts the movable seat 9 according to the length of the patient's limbs. When adjusting, first pull the lifting handle 18 upwards so that the lifting handle 18 drives the limiting rod 17 to move upwards. When the limiting rod 17 moves to disengage from the limiting hole 21, the limiting rod 17 cancels the limit of the sliding seat 8, and then pushes the lifting handle 18 so that the lifting handle 18 drives the sliding seat 8 and the movable seat 9 to move along the axial direction of the fixed rod 7. When it is adjusted to a suitable position, release the lifting handle 18. At this time, the anti-slip block 20 is pushed downward under the elastic action of the spring 19. When the anti-slip block 20 drives the limiting rod 17 to move, when the limiting rod 17 moves to the inner side of the limiting hole 21, the limiting of the sliding seat 8 and the movable seat 9 is completed, and the adjustment is completed. Subsequently, the patient's limbs are placed on the top of the rubber placement pad 11 and then the rotating knob 13 is turned. The rotating knob 13 drives the bidirectional threaded rod 14 to rotate. When the bidirectional threaded rod 14 rotates, it drives the moving blocks 15 at both ends to move in the direction of approaching each other, so that when the moving block 15 moves, it drives the arc clamping plate 10 to move through the fixed block 12, and then the two arc clamping plates 10 complete the fastening of the patient's limbs. When it is necessary to adjust the height of the lying board 2, first, the shaking handle 26 is rotated, so that the shaking handle 26 drives the rotating rod 22 to rotate. When the rotating rod 22 rotates, it drives the transmission bevel gear 30 to rotate. When the transmission bevel gear 30 rotates, it drives the built-in threaded sleeve 27 to rotate through the driven bevel gear 28 meshing with it. When the built-in threaded sleeve 27 rotates, it drives the lifting screw 29 threadedly connected to it to move along the axial direction of the built-in threaded sleeve 27. When the lifting screw 29 moves, it drives the telescopic end of the telescopic support 3 to move through the connecting rod 23, thereby completing the lifting and lowering adjustment of the lying board 2.

Claims

1. A positioning device, characterized in that: include: A bottom plate (1), wherein telescopic pillars (3) are arranged at four end corners of the top of the bottom plate (1), a lying plate (2) is arranged above the bottom plate (1), the lower end of the lying plate (2) is fixedly connected to the telescopic end of the telescopic pillar (3), and a headrest (4) is fixed to the top of one end of the lying plate (2); A fastening assembly (5), the fastening assembly (5) being arranged at the top of the lying board (2) and at a position corresponding to the limbs, and being used for fastening and fixing the limbs; A lifting component (6) is arranged at the top end of the bottom plate (1) and is used to adjust the height of the lying plate (2).

2. The positioning device according to claim 1, characterized in that: The fastening assembly (5) comprises a fixing rod (7), a slide groove is provided on the inner side of the lying plate (2) and at a position corresponding to the fixing rod (7), a sliding seat (8) is provided on the inner side of the slide groove, the sliding seat (8) is slidably connected to the lying plate (2), a fixing rod (7) is transversely provided on the inner side of the slide groove, the fixing rod (7) is fixedly connected to the lying plate (2), the fixing rod (7) is slidably connected to the sliding seat (8), the inner side of the sliding seat (8) is provided with a limiting assembly, the lying plate (2) A moving seat (9) is arranged at the top of the moving seat (9) and at a position corresponding to the sliding seat (8); the moving seat (9) is fixedly connected to the sliding seat (8) via a connecting block (16); a rubber placement pad (11) is fixed to the top of the moving seat (9); arc-shaped clamping plates (10) are arranged at the top of the moving seat (9) and at positions on both sides of the rubber placement pad (11); a driving assembly is arranged on the inner side of the moving seat (9); and the arc-shaped clamping plate (10) is connected to the moving seat (9) via the driving assembly.

3. The positioning device according to claim 2, characterized in that: The driving assembly comprises a bidirectional threaded rod (14), the bidirectional threaded rod (14) being longitudinally arranged at an inner position of the moving seat (9), the bidirectional threaded rod (14) being rotatably connected to the moving seat (9), one end of the bidirectional threaded rod (14) extending to the outer side of the moving seat (9), a rotating knob (13) being fixed to one end of the bidirectional threaded rod (14) located on the outer side of the moving seat (9), both ends of the bidirectional threaded rod (14) located on the inner side of the moving seat (9) being threadedly connected to a moving block (15), the moving block (15) being slidably connected to the moving seat (9), a fixed block (12) being fixed to the top end of the moving block (15), the top end of the fixed block (12) extending to the outer side of the top end of the moving seat (9), the fixed block (12) being slidably connected to the moving seat (9), and the top end of the fixed block (12) being fixedly connected to the arc-shaped clamping plate (10).

4. The positioning device according to claim 2, characterized in that: The limit assembly comprises a limit rod (17), the limit rod (17) is vertically arranged at an inner position of one end of the sliding seat (8), the limit rod (17) is slidably connected to the sliding seat (8), the lower end of the limit rod (17) extends to the outer side of the lower end of the sliding seat (8), a limit hole (21) is provided on the inner side of the lying plate (2) and at a position corresponding to the limit rod (17), the limit rod (17) is plug-connected to the lying plate (2) through the limit hole (21), the other end of the limit rod (17) extends to the outer side of one end of the moving seat (9), a lifting handle (18) is fixed to the end of the limit rod (17) located on the outer side of the moving seat (9), and the limit rod (17) is slidably connected to the moving seat (9).

5. The positioning device according to claim 1, characterized in that: The lifting assembly (6) comprises two fixed columns (24), the two fixed columns (24) are respectively arranged at the middle positions of the two ends of the base plate (1), the fixed columns (24) are fixedly connected to the base plate (1), a rotating rod (22) is horizontally arranged above the two fixed columns (24), and a transmission assembly is arranged at the top of the fixed columns (24) and at a position corresponding to the fixed columns (24).

6. The positioning device according to claim 5, characterized in that: The transmission assembly comprises a fixing frame (25), the fixing frame (25) being arranged at a position on one side of the top end of the fixing column (24), the fixing frame (25) being fixedly connected to the fixing column (24), the two ends of the rotating rod (22) extending to the outside of one end of the fixing frame (25), the fixing frame (25) being rotatably connected to the rotating rod (22), the inner side of the fixing column (24) being rotatably connected to an internal threaded sleeve (27), the top end of the internal threaded sleeve (27) extending to the fixing column ( 24), the inner side of the built-in threaded sleeve (27) is threadedly connected with a lifting screw (29), the outer side of one end of the built-in threaded sleeve (27) located outside the fixing column (24) is fixed with a driven bevel gear (28), a transmission bevel gear (30) is fixed at a position corresponding to the driven bevel gear (28) of the rotating rod (22), the transmission bevel gear (30) is meshingly connected with the driven bevel gear (28), and a shaking handle (26) is fixed at one end of the rotating rod (22).

7. The positioning device according to claim 6, characterized in that: A connecting rod (23) is fixed to the top end of the lifting screw rod (29), and both ends of the connecting rod (23) are respectively fixedly connected to the telescopic ends of the telescopic pillars (3) on both sides of the same end.

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