Operating bed side rail fixing clamp

Abstract

The utility model relates to an operating table side rail fixing clamp which comprises a base, a rotary circular truncated cone, a first movable clamp plate and a second movable clamp plate, the second movable clamp plate is provided with a rotation stopping part, and the rotation stopping part is matched with the rotary circular truncated cone in a stopping and limiting mode in the rotation direction of the second movable clamp plate so as to limit the rotation limit angle of the second movable clamp plate. The clamping space is formed by a space between the first movable clamp plate and the second movable clamp plate; the locking structure is matched with the first movable clamp plate in a pushing mode so that the first movable clamp plate can move towards the direction of the second movable clamp plate. The reset piece is connected between the base and the first movable clamp plate; when the first movable clamp plate is driven to move towards the second movable clamp plate, the second movable clamp plate is extruded by the bed side rail, so that the rotation stopping part is attached to the peripheral side wall of the circular truncated cone, and circumferential rotation locking limiting is achieved through relative friction between the rotation stopping part and the circular truncated cone. The clamping device is simple in structure, convenient to lock, suitable for different tools to be clamped and wide in applicability.

Description

Technical Field

[0001] The utility model relates to the field of medical instruments, in particular to a side rail fixing clamp for an operating table. Background Art

[0002] At present, conventional surgical bedside rail fixing clamps are divided into two categories. The first category is only used for fixing and does not make angle adjustment. In this case, the fixing clamp is directly designed as a jaw-type structure and clamped on the bedside rail. However, the structure and function of this fixing clamp are single and cannot adapt to the working angles and usage ranges of different tools; the second category adopts a double-handle structure, including a clamping part mounted on the bedside rail, and a rotating part rotatably assembled on the clamping part, wherein the clamping part slides along the extension direction of the bedside rail, and a first locking handle is provided on the clamping part, so that the fixing clamp is locked and fixed along the sliding direction; the tool to be clamped is fixed on the rotating part, and a second locking handle is provided on the rotating part, so that the rotating part is locked and fixed. This fixing clamp needs to achieve two-way locking in the sliding and rotating directions, requires two locking operations, has a relatively bloated structure, and is less convenient to operate. Utility Model Content

[0003] The utility model aims to provide a surgical bed side rail fixing clamp to solve the problems of bulky structure and inconvenient operation when the fixing clamp in the prior art realizes double locking of sliding and rotating reverse directions.

[0004] In order to solve the above problems, the surgical bed side rail fixing clamp involved in the utility model adopts the following technical solutions:

[0005] The operating bed rail fixing clamp comprises a base, one end of which has a clamping space for clamping the bed rail; a rotating table, which is rotatably assembled at one end of the base facing away from the clamping space, and has a mounting structure for mounting a tool to be clamped; a first movable clamp plate, which is guided and movable and assembled on one side of the base, and a second movable clamp plate, which is rotatably assembled on the other side of the base, and the rotation axis is perpendicular to the movement direction of the first movable clamp plate, and has a stop portion extending to the outer peripheral side wall of the rotating table, and the stop portion cooperates with the rotating table to stop and limit the rotation direction of the second movable clamp plate to limit the rotation limit angle of the second movable clamp plate; the first movable clamp plate The space between the plate and the second movable jaw constitutes the clamping space; a locking structure is connected to the base and cooperates with the first movable jaw to push and move the first movable jaw toward the second movable jaw; a reset member is connected between the base and the first movable jaw to apply a force to the first movable jaw to move it away from the second movable jaw; when the first movable jaw is driven to move toward the second movable jaw, the second movable jaw is squeezed by the bedside rail and swings away from the first movable jaw, and the anti-rotation portion of the second movable jaw fits against the outer peripheral side wall of the table to achieve circumferential rotation locking limit through relative friction between the two.

[0006] In a preferred embodiment, the base includes a base body and a guide shaft arranged on one side of the base body, the first movable pliers plate is guided and assembled on the guide shaft, the locking structure includes a locking sleeve rotatably mounted on the guide shaft, the locking sleeve is threadedly assembled with the guide shaft, and a rotating handle is arranged on the locking sleeve. The locking sleeve is driven by the rotating handle to drive the locking sleeve to reciprocate along the axis of the guide shaft so that the locking sleeve pushes the first movable pliers plate.

[0007] In a preferred embodiment, the seat body and the guide shaft are detachable and assembleable.

[0008] In a preferred embodiment, the first movable jaw anti-rotation sleeve is arranged on the guide shaft, and the reset member is a compression spring mounted between the guide shaft and the first movable jaw.

[0009] In a preferred embodiment, the rotating handle includes a base sleeve with a stop sleeve arranged on a locking sleeve, a force rod is rotatably mounted on the outer peripheral wall of the base sleeve, and the rotation axis is perpendicular to the axial direction of the base sleeve. During the swinging process, the force rod can be contracted and attached to the outer peripheral surface of the base sleeve, and can be expanded and arranged perpendicular to the outer peripheral surface of the base sleeve, and a retaining structure for keeping the force rod in an expanded posture is provided between the base sleeve and the force rod.

[0010] In a preferred embodiment, the base sleeve is provided with an avoidance groove for accommodating the force-adding rod, the end of the force-adding rod is provided with a locking groove, and the retaining structure includes an elastic locking pin elastically assembled on the bottom wall of the avoidance groove and in the locking groove.

[0011] In a preferred embodiment, mounting blocks are provided at the upper and lower center parts of the second movable jaw, and a receiving groove is provided on the mounting block. The receiving groove is sleeved on the base along the direction toward the first movable jaw, and a hinge shaft is connected between the receiving groove and the base to enable the two to be hingedly assembled.

[0012] In a preferred embodiment, the protruding portion of the second movable clamp plate located below the mounting block constitutes the anti-rotation portion, and the protruding portion is an arc-shaped plate arranged concentrically with the outer side wall of the rotary table.

[0013] In a preferred embodiment, the mounting structure includes a connecting hole arranged on the end surface of the rotary table.

[0014] In a preferred embodiment, a through hole is opened at the center position of the rotary table along its axis, a core shaft is inserted and guided in the through hole, the rotary table is rotatably assembled with the core shaft, and the core shaft is fixedly connected to the base.

[0015] As described above, the utility model has the following beneficial effects: compared with the prior art, the fixing clamp designed by the utility model, in actual use, is clamped and fixed on the bedside rail by the mutual cooperation of the first movable clamp plate and the second movable clamp plate, and at the same time, the fixed installation of the tool to be clamped is realized through the installation structure, and after the fixing clamp is moved to the set position on the bedside rail, the swing angle of the clamping tool is adjusted, and the rotary table rotates around the base to realize angle adjustment; after the angle is adjusted, the first movable clamp plate is driven to move toward the second movable clamp plate through the locking mechanism, and the two are fastened to the bedside rail, so as to realize locking in the sliding direction. In this process, the second movable clamp plate is squeezed and swung, and the anti-rotation part is tightly fitted with the outer peripheral surface of the rotary table, and the rotation locking is realized by the friction force between the two; and then the two-way locking in the sliding direction and the rotation direction is realized through a single locking mechanism. The structure is simple and the locking is convenient. It is suitable for different tools to be clamped and has a wide applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the following is a brief introduction to the drawings required for use in the embodiment:

[0017] Figure 1 This is a schematic structural diagram of a specific embodiment of the surgical bed side rail fixing clamp of the utility model;

[0018] Figure 2 for Figure 1 Half-section of

[0019] Figure 3 for Figure 1 Schematic diagram of the explosion structure;

[0020] Figure 4 for Figure 3 Schematic diagram of the structure of the middle base;

[0021] Figure 5 for Figure 3 Schematic diagram of the structure of the central rotary table;

[0022] Figure 6 for Figure 3 A schematic diagram of the structure of the first movable clamp plate;

[0023] Figure 7 for Figure 3 A schematic diagram of the structure of the second movable clamp;

[0024] Figure 8 for Figure 3 Schematic diagram of the structure of the middle guide shaft;

[0025] Description of reference numerals:

[0026] 1-base; 11-first arc-shaped plate portion; 12-mounting base; 121-first mounting hole; 122-second mounting hole; 123-hinge mounting hole; 13-guide shaft; 131-wide diameter section; 14-first locking screw; 15-second locking screw; 16-blocking cover; 17-third locking screw; 18-hinge shaft;

[0027] 2-rotating table; 21-through hole; 22-core shaft; 23-connecting hole;

[0028] 3-first movable clamp; 31-guide hole;

[0029] 4-second movable clamp; 41-second arc-shaped plate portion; 411-rotation stop; 42-connecting base; 421-accommodating groove; 422-perforation;

[0030] 5-reset part; 6-clamping space;

[0031] 7-locking structure; 71-locking sleeve; 72-base sleeve; 73-force rod; 74-avoidance groove; 75-elastic locking pin; 76-locking groove; 77-flat washer. DETAILED DESCRIPTION

[0032] In order to make the technical purpose, technical solution and beneficial effects of the utility model clearer, the technical solution of the utility model is further described below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model, that is, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The components of the embodiments of the utility model described and shown herein can be arranged and designed in various different configurations.

[0033] It should be noted that when an element is referred to as being "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected" to another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "first", "second" and similar words do not indicate any order, quantity or importance, but are only used to distinguish different components. The terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a mechanical connection or an electrical connection, or it can be the internal communication of two elements, which can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are only for illustrative purposes and do not represent the only implementation method.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0035] The specific embodiment of the surgical bed rail fixing clamp involved in the utility model is as follows: Figures 1 to 8 As shown, the operating table side rail fixing clamp includes a base 1, a rotating table 2, a first movable clamp plate 3, a second movable clamp plate 4, a reset member 5, a locking structure 7, etc.

[0036] The base 1 is the basic carrier of all other components, and is used to install other components. In this embodiment, the structure of the base 1 is as follows: Figure 1-4 As shown, it includes a first arc-shaped plate portion 11 on the outside and a mounting base 12 arranged inside the arc-shaped plate portion. The upper part of the first arc-shaped plate portion 11 extends upward from the mounting base 12. A clamping space 6 is provided on the lower end surface of the mounting base 12. The clamping space 6 is used to clamp the bedside rail. A first mounting hole 121 is provided through the mounting base 12 in the up-and-down direction, a second mounting hole 122 is provided through the mounting base 12 in the left-and-right direction, and a hinged mounting hole 123 is provided through the mounting base 12 in the front-and-back direction.

[0037] The structure of the rotary table 2 is as follows: Figures 1 to 3 , Figure 5 As shown, it is a cylindrical structure as a whole, with anti-slip grooves on the outer surface, and a through hole 21 that passes through the upper and lower parts is opened at the center of the axis. A core shaft 22 is inserted into the through hole 21 from bottom to top, and the revolving table 2 is rotatably assembled with the core shaft 22. The core shaft 22 is fixedly connected to the base 1. Specifically, the first mounting hole 121 is a step hole, and a threaded hole is opened at the lower end of the core shaft 22. After the core shaft 22 is inserted into the through hole 21 and the first mounting hole 121 from top to bottom, the first locking screw 14 inserted into the first mounting hole 121 from bottom to top cooperates with the step surface of the first mounting hole 121 to realize the relative fixed connection between the core shaft 22 and the base 1, thereby realizing the rotational assembly of the revolving table 2 and the base 1. In order to ensure the smooth rotation between the rotating table 2 and the base 1, the lower end of the core shaft 22 abuts against the upper step surface of the first mounting hole 121, and a corresponding gap is formed between the rotating table 2 and the base 1 to avoid direct end face contact between the two and poor rotation due to the influence of friction.

[0038] A mounting structure for mounting the tool to be clamped is provided on the upper end surface of the rotary table 2. In the present embodiment, the mounting structure is a connecting hole 23 provided on the upper end surface of the rotary table 2. There are a plurality of connecting holes 23, which are arranged circumferentially around the through hole 21 to achieve fixed connection of different tools to be clamped. The connection method can be arbitrarily designed according to the installation method of different tools, such as direct connection by screws, or fixed connection by intermediate fixing parts, etc., without specific limitation.

[0039] The guide shaft 13 is inserted into the corresponding second mounting hole 122 on the mounting base 12. Specifically, the guide shaft 13 extends in the left-right direction, and the left end extends rightward and is inserted into the second mounting hole 122. A step surface is provided at the left end edge of the second mounting hole 122. At the same time, a threaded hole is provided on the left end surface of the guide shaft 13. The second locking screw 15 inserted from left to right into the second mounting hole 122 is fixedly connected to the guide shaft 13, and the step surface and the second locking screw 15 are stopped and limited to achieve relative fixation of the guide shaft 13 and the base 1. A wide diameter section 131 is provided in the middle of the guide shaft 13, and two left and right step surfaces are formed between the left and right ends of the wide diameter section 131 and the main body of the guide shaft 13. The step surface on the left side is abutted and stopped with the base 1 to achieve locking.

[0040] The first movable jaw 3 is guided and moved on the guide shaft 13, while the second movable jaw 4 is rotatably mounted on the hinged mounting hole 123. The first movable jaw 3 and the second movable jaw 4 are arranged relative to each other in the left-right direction, and have clamping openings on their opposite surfaces. The space between the two constitutes a clamping space 6 for accommodating the bedside rail.

[0041] The first movable jaw 3 is a block-shaped structure as a whole, and is provided with a guide hole 31 extending left and right. It is guided and assembled with the guide hole 31 and the guide shaft 13. At the same time, a stop limit is provided between the clamping opening at the left end of the first movable jaw 3 and the mounting base 12 of the base 1 along the left and right directions to limit the extreme position of the first movable jaw 3 moving to the left.

[0042] The locking structure 7 is connected to the guide shaft 13 and is located on the right side of the first movable pliers 3. It cooperates with the first movable pliers 3 to drive the first movable pliers 3 to move in the left and right directions, thereby realizing movement toward the second movable pliers 4 and movement away from the second movable pliers 4. Specifically, the locking structure 7 includes a locking sleeve 71 sleeved on the guide shaft 13, a flat washer 77 is provided between the left end of the locking sleeve 71 and the first movable pliers 3, an external thread is provided on the outer wall of the guide shaft 13 corresponding to the position of the locking sleeve 71, and an internal thread is provided on the corresponding inner wall of the locking sleeve 71. The locking sleeve 71 is threadedly connected to the guide shaft 13, so that the locking sleeve 71 can achieve abutment transmission cooperation with the first movable pliers 3 during the rotation of the locking sleeve 71.

[0043] In order to realize the rotation drive of the locking sleeve 71, a rotating handle is arranged on the locking sleeve 71. The locking sleeve 71 is driven by the rotating handle to drive the locking sleeve 71 to reciprocate along the axis of the guide shaft 13, so that the locking sleeve 71 pushes the first movable pliers 3. Preferably, in order to realize the labor-saving drive of the locking handle, the rotating handle includes a base sleeve 72 with a rotation stop sleeve arranged on the locking sleeve 71, the base sleeve 72 is a four-corner transmission handle structure, and a force rod 73 is rotatably mounted on the outer peripheral wall of the base sleeve 72, and the rotation axis is perpendicular to the axis direction of the base sleeve 72. During the swinging process, the force rod 73 can be contracted and attached to the outer peripheral surface of the base sleeve 72, and can be unfolded and arranged perpendicularly to the outer peripheral surface of the base sleeve 72. A holding structure for keeping the force rod 73 in the unfolded posture is provided between the base sleeve 72 and the force rod 73.

[0044] In this embodiment, in order to facilitate the swinging and maintaining the driving of the force rod 73, an avoidance groove 74 for accommodating the force rod 73 is provided on the base sleeve 72, and a locking groove 76 is provided at the end of the force rod 73. The retaining structure includes an elastic locking pin 75 elastically assembled on the bottom wall of the avoidance groove 74 and in the locking groove 76.

[0045] In addition, in order to prevent the locking sleeve 71 and the first movable clamp 3 from being disengaged from the guide shaft 13 to the right along the axis of the guide shaft 13, a blocking cover 16 is provided on the right end face of the guide shaft 13, and locking and fixing are achieved by a third locking screw 17. The diameter of the blocking cover 16 is larger than the inner diameter of the locking sleeve 71.

[0046] During assembly, the first movable clamp plate 3, flat washer 77, locking sleeve 71, etc. are sequentially mounted and connected to the guide shaft 13, and then each part is sealed by the blocking cover 16 to limit the position and prevent it from falling off, and then the base sleeve 72 is screwed and fixed on the outer wall of the locking sleeve 71 to achieve unified assembly.

[0047] When driving the first movable pliers 3, the force rod 73 is swung to a vertical position and locked by the elastic locking pin 75 to maintain a posture, and then the force rod 73 is manually controlled to rotate the base sleeve 72, driving the locking sleeve 71 to spirally cooperate with the guide shaft 13 and move to the left end, thereby pushing the first movable pliers 3 through the locking sleeve 71, and realizing the movement of the first movable pliers 3 to the left.

[0048] The reset member 5 is connected between the base 1 and the first movable nipper 3, and is used to apply a force to the first movable nipper 3 to move it away from the second movable nipper 4. In this embodiment, the reset member 5 is a compression spring fixed between the right step surface of the wide diameter section 131 of the guide shaft 13 and the first movable nipper 3. When the locking sleeve 71 is loosened, the first movable nipper 3 is pushed by the compression spring and moves in the opposite direction to the right, away from the second movable nipper 4.

[0049] The second movable jaw 4 is rotatably mounted on the left side of the base 1, and is specifically rotatably mounted on the hinge connection hole 23 of the base 1. The structure of the second movable jaw 4 is as follows: Figures 1 to 3 , Figure 7 As shown, it includes a second arc-shaped plate portion 41 on the outside and a connecting base 42 arranged inside the second arc-shaped plate portion 41. The connecting base 42 is a mounting block as a whole, and a receiving groove 421 is provided at its right end. The receiving groove 421 is sleeved on the base 1 in the direction toward the first movable jaw 3. Through holes 422 are provided through the groove walls on both sides of the receiving groove 421. The through holes 422 are coaxially arranged with the hinged mounting hole 123 on the base 1, and a hinge shaft 18 is inserted integrally therewith, and the intersection and assembly of the two are realized through the hinge shaft 18. The second movable jaw 4 can rotate freely around the hinge shaft 18, and the rotation axis is perpendicular to the moving direction of the first movable jaw 3. In this embodiment, it extends in the front-to-back direction. The above-mentioned connecting base 42 is arranged at the lower half of the inner side wall of the second arc-shaped plate portion 41, and the lower right side wall of the connecting base 42 is formed with a clamping opening corresponding to the first movable jaw 3. The upper part of the second arc-shaped plate portion 41 protruding from the connection base 42 is a stopper 411 extending to the outer peripheral side wall of the rotating table 2. The stopper 411 cooperates with the rotating table 2 to stop and limit the rotation direction of the second movable pliers 4 to limit the rotation limit angle of the second movable pliers 4. At the same time, in order to ensure the integrity of the overall structure, the first arc-shaped plate portion 11 and the second arc-shaped plate portion 41 are relatively close to each other and arranged relative to each other at intervals, so that the upper part of the second arc-shaped plate portion 41 can have a certain swing space around the hinge shaft 18. At the same time, the cylindrical space formed between the first arc-shaped plate portion 11 and the second arc-shaped plate portion 41 is sleeved on the outer peripheral surface of the rotating table 2, and the diameter of the cylindrical space is slightly larger than the outer diameter of the rotating table 2.

[0050] When the first movable jaw 3 is driven to move toward the second movable jaw 4, the second movable jaw 4 is squeezed by the bedside rail and swings back to the first movable jaw 3, and the anti-rotation portion 411 of the second movable jaw 4 fits against the outer peripheral side wall of the table to achieve circumferential rotation locking limit through relative friction between the two.

[0051] During the actual operation, the locking sleeve 71 is first moved to the right, and the first movable clamp plate 3 is moved away from the second movable clamp plate 4 by the force of the reset member 5, and the clamping space 6 is increased. Then the fixed clamp is set on the bedside rail and slid left and right to adjust its position on the bedside rail. After the position is determined, the direction angle of the tool to be used is adjusted by rotating the rotary table 2. After the adjustment is completed, the force-adding rod 73 is manually rotated, and the locking sleeve 71 is driven to rotate and move to the left. During the movement, the first movable clamp plate 3 is pushed to move to the left and relatively close to the second movable clamp plate 4 to clamp the bedside rail. During the clamping process In the process, the first movable clamp 3 pushes the bedside rail, and the bedside rail is driven to push the second movable clamp 4 to the left, and the second movable clamp 4 is driven to swing around the hinge shaft 18. After swinging to the point where the anti-rotation part 411 of its second arc-shaped plate part 41 contacts the rotating table 2, the second movable clamp 4 stops swinging. At this time, the first movable clamp 3 is continued to be driven to move, and the pressure at the direct contact point between the arc-shaped plate part of the second movable clamp 4 and the rotating table 2 increases, and the friction force increases. The anti-rotation cooperation between the rotating table 2 and the second movable clamp 4 can be achieved through the friction force between the two, thereby locking the rotation of the rotating table 2.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate but not to limit the technical solutions of the present invention, and any equivalent substitutions of the present invention and any modifications or partial substitutions that do not depart from the spirit and scope of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. The operating table side rail fixing clamp is characterized by: include, A base having a clamping space at one end for clamping the bedside rail; A rotary table is rotatably mounted on one end of the base facing away from the clamping space, and has a mounting structure for mounting a tool to be clamped; The first movable clamp is guided and moved on one side of the base. The second movable nipper is rotatably mounted on the other side of the base, the rotation axis is perpendicular to the moving direction of the first movable nipper, and has a stopper extending to the outer peripheral side wall of the rotary table, the stopper cooperates with the rotary table to stop and limit the rotation direction of the second movable nipper to limit the rotation limit angle of the second movable nipper; The space between the first movable pliers and the second movable pliers constitutes the clamping space; A locking structure connected to the base and cooperating with the first movable jaw to push and move the first movable jaw toward the second movable jaw; A reset member connected between the base and the first movable pliers plate to apply a force to the first movable pliers plate to move it back toward the second movable pliers plate; When the first movable clamp is driven to move toward the second movable clamp, the second movable clamp is squeezed by the bedside rail and swings back to the first movable clamp. The anti-rotation part of the second movable clamp fits with the outer peripheral side wall of the circular table to achieve circumferential rotation locking limit through relative friction between the two.

2. The surgical bed side rail fixing clamp according to claim 1, characterized in that: The base includes a base body and a guide shaft arranged on one side of the base body, the first movable pliers plate is guided and assembled on the guide shaft, the locking structure includes a locking sleeve rotatably sleeved on the guide shaft, the locking sleeve is threadedly assembled with the guide shaft, and a rotating handle is arranged on the locking sleeve. The locking sleeve is driven by the rotating handle to drive the locking sleeve to reciprocate along the axis of the guide shaft so that the locking sleeve pushes the first movable pliers plate.

3. The operating table side rail fixing clamp according to claim 2, characterized in that: The seat body and the guide shaft can be assembled and disassembled.

4. The surgical bed side rail fixing clamp according to claim 2, characterized in that: The first movable jaw anti-rotation sleeve is arranged on the guide shaft, and the reset member is a compression spring mounted between the guide shaft and the first movable jaw.

5. The surgical bed side rail fixing clamp according to claim 2, characterized in that: The rotating handle includes a base sleeve with a stop sleeve arranged on a locking sleeve, a force rod is rotatably mounted on the outer peripheral wall of the base sleeve, and the rotation axis is perpendicular to the axial direction of the base sleeve. During the swinging process, the force rod can be contracted and attached to the outer peripheral surface of the base sleeve, and can be expanded and arranged perpendicular to the outer peripheral surface of the base sleeve. A retaining structure for keeping the force rod in an expanded posture is provided between the base sleeve and the force rod.

6. The operating table side rail fixing clamp according to claim 5, characterized in that: The base sleeve is provided with an avoidance groove for accommodating the force-adding rod, the end of the force-adding rod is provided with a locking groove, and the retaining structure comprises an elastic locking pin elastically assembled on the bottom wall of the avoidance groove and in the locking groove.

7. The surgical bed side rail fixing clamp according to any one of claims 1 to 6, characterized in that: The second movable jaw is provided with mounting blocks at the upper and lower center parts, and a receiving groove is provided on the mounting block. The receiving groove is sleeved on the base in the direction toward the first movable jaw, and a hinge shaft is connected between the receiving groove and the base to enable the two to be hingedly assembled.

8. The surgical bed side rail fixing clamp according to claim 7, characterized in that: The protruding portion of the second movable clamp plate located below the mounting block constitutes the anti-rotation portion, and the protruding portion is an arc-shaped plate arranged concentrically with the outer side wall of the rotary table.

9. The surgical bed side rail fixing clamp according to any one of claims 1 to 6, characterized in that: The mounting structure comprises a connecting hole arranged on the end surface of the rotary table.

10. The surgical bed side rail fixing clamp according to any one of claims 1 to 6, characterized in that: A through hole is opened at the center position of the rotary table along its axis, a core shaft is inserted and guided in the through hole, the rotary table is rotatably assembled with the core shaft, and the core shaft is fixedly connected to the base.

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