Connection device for connecting operating table accessory, and operating table

Abstract

Provided in the embodiments of the present application are a connection device for connecting an operating table accessory, and an operating table. The connection device comprises a first component, a second component, a force applying component and a support member. When the second component is fitted to the first component, the second component is locked, and when the second component and the first component are separated away from each other in a first direction, the second component is unlocked. At least one of the force applying component and the second component passes through the first component and then is fitted to the other. One of the first component and the second component is fixedly connected to the support member, and the other is used for connecting an operating table accessory. Since the first component and the second component are in a limited fitting, the first component and the second component can be separated from each other in the first direction at a preset position; and when a operating table accessory is connected to the connection device, the support member can be stopped by the operating table accessory, so as to prevent the first component and the second component from rotating relative to each other to the preset position. The connection device of the embodiments of the present application has a good anti-detachment function.

Description

Connecting device for connecting operating table accessories and operating table Technical Field

[0001] This application relates to the field of medical device technology, and in particular to a connecting device for connecting operating table accessories and an operating table. Background Technology

[0002] In operating rooms of ophthalmology, orthopedics, and neurosurgery, headrests are a common operating table accessory used to support and stabilize the patient's head during surgery. Due to differences in surgical procedures, surgeons' habits, and patient body types, headrests need to be designed with specific movement mechanisms to allow medical staff to quickly adjust their position and angle, thereby improving surgical efficiency.

[0003] In related technologies, the headrest connection device typically achieves position and angle adjustment through a motion mechanism with locking and unlocking functions. To facilitate easy adjustment of the headrest, the motion mechanism is designed with minimal structure. Common motion mechanisms mainly consist of a handle and two rotating parts; rotating the handle locks and unlocks the two rotating parts. However, during the unlocking process, if medical personnel continuously loosen the handle, it may come loose, causing the two rotating parts to separate. Summary of the Invention

[0004] In view of this, embodiments of this application aim to provide a connecting device and an operating table with anti-detachment function for connecting operating table accessories.

[0005] To achieve the above objectives, the first embodiment of this application provides a connecting device for connecting operating table accessories, comprising:

[0006] First component;

[0007] The second component locks when it engages with the first component and unlocks when they move away from each other in a first direction.

[0008] A force-applying component, at least one of the force-applying component and the second component passing through the first component and engaging with the other, such that the force-applying component can apply a force to the first component and the second component to bring them closer together and engage with each other along the first direction;

[0009] A support member, wherein one of the first component and the second component is fixedly connected to the support member, and the other of the first component and the second component is used to connect to operating table accessories;

[0010] Wherein, the first component and the second component are mutually positioned so that the first component and the second component can be separated from each other along the first direction when they are in a set position;

[0011] When the operating table accessory is connected to the connecting device, the support member can be stopped by the operating table accessory to prevent the first component and the second component from rotating relative to each other to the set position.

[0012] A second embodiment of this application provides a connecting device for connecting operating table accessories, comprising:

[0013] A first component with mounting holes for connecting operating table accessories;

[0014] The second component is locked when it engages with the first component and unlocked when they move away from each other in a first direction.

[0015] Support member, the support member being fixedly connected to the second component; and

[0016] The force-applying component includes a middle portion and force-applying portions and a first mounting portion located at opposite ends of the middle portion. The external dimensions of the middle portion are smaller than the external dimensions of the first mounting portion. When the first mounting portion is connected to the second component, the middle portion passes through the mounting hole. After the first mounting portion passes through the mounting hole along a first axis and moves along a second direction different from the first direction, the second component approaches the first component along the second axis and connects with the first mounting portion. The first axis and the second axis are spaced apart along the second direction, such that when the first mounting portion is connected to the second component, on the same projection plane perpendicular to the first direction, the orthographic projection contour of the first mounting portion intersects with the orthographic projection contour of the mounting hole.

[0017] The third embodiment of this application provides a connecting device for connecting operating table accessories, including:

[0018] The first component has mounting holes;

[0019] The second component locks when it engages with the first component and unlocks when they move away from each other in a first direction; wherein the second component is provided with a first mounting channel, the first mounting channel including a first channel portion having a channel opening and a second channel portion located on the side of the first channel portion opposite to the mounting hole;

[0020] A force-applying component includes a force-applying part and a first mounting part. The first mounting part passes through the mounting hole and the channel opening along a first axis and then moves to a second axis. The first mounting part is inserted into the second channel portion from the first channel portion along the second axis and engages with the second channel portion. The first axis and the second axis are spaced apart along a second direction, such that when the first mounting part engages with the second channel portion, on the same projection plane perpendicular to the first direction, the orthographic projection profile of the first mounting part is at least partially offset from the orthographic projection profile of the channel opening. The first direction is different from the second direction.

[0021] A support member, wherein one of the first component and the second component is fixedly connected to the support member, and the other of the first component and the second component is used to connect to operating table accessories;

[0022] When the first component and the second component rotate relative to each other to a set position, the first mounting part can pass through the mounting hole and the channel opening along the first axis;

[0023] When the operating table accessory is connected to the connecting device, the support is stopped by the operating table accessory to prevent the first component and the second component from rotating relative to each other to the set position.

[0024] The fourth embodiment of this application provides an operating table, including a table body, operating table accessories, and the aforementioned connecting device, wherein the support member is connected to the table body.

[0025] This application provides a connecting device for connecting an operating table accessory and an operating table. The connecting device includes a first component, a second component, a force-applying component, and a support member. The second component locks with the first component when engaged, and unlocks when they move away from each other along a first direction. The first and second components are mutually limitingly engaged, allowing them to separate along the first direction when in a set position. When the connecting device is connected to the operating table accessory, the support member is stopped by the operating table accessory to prevent the first and second components from rotating relative to each other to the set position. Because the support member is stopped by the operating table accessory when the connecting device is connected, the first and second components cannot rotate relative to each other to the set position that would allow them to separate. Therefore, during the adjustment of the position of the operating table accessory, the first and second components can rotate relative to each other arbitrarily without separating along the first direction. This allows the connecting device to have a good anti-detachment function. Attached Figure Description

[0026] Figure 1 is a schematic diagram of the connection relationship between the connecting device and the operating table accessory according to the first embodiment of this application;

[0027] Figure 2 is a schematic diagram of the connection relationship between the connecting device shown in Figure 1 and the operating table accessories. The support in the figure is in a position where it is stopped by the operating table accessories.

[0028] Figure 3 is a schematic diagram of the connecting device shown in Figure 1. The connecting device in the figure is in the state of being connected to the operating table accessory, and the first component and the second component are in the unlocked state.

[0029] Figure 4 is an exploded view of the connecting device shown in Figure 3;

[0030] Figure 5 is a structural schematic diagram of the connecting device shown in Figure 1, in which the first component and the second component are in a locked state;

[0031] Figure 6 is a schematic diagram of the connecting device shown in Figure 1, in which the first component and the second component are in the set position;

[0032] Figure 7 is a structural schematic diagram of the first component shown in Figure 3;

[0033] Figure 8 is a structural schematic diagram of the first component shown in Figure 3 from another perspective;

[0034] Figure 9 is a structural schematic diagram of the second component shown in Figure 3;

[0035] Figure 10 is a cross-sectional view of the connecting device shown in Figure 3;

[0036] Figure 11 is a cross-sectional view of the connecting device shown in Figure 3 when it is in the set position;

[0037] Figure 12 is a schematic diagram of the force-applying component shown in Figure 3;

[0038] Figure 13 is a cross-sectional view of the connecting device shown in Figure 3 from another perspective;

[0039] Figure 14 is a cross-sectional view of the connecting device according to the second embodiment of this application;

[0040] Figure 15 is a cross-sectional view of the connecting device according to the third embodiment of this application. The connecting device in the figure is in a state of being connected to the operating table accessory, and the first component and the second component are in an unlocked state.

[0041] Figure 16 is a structural schematic diagram of the force-applying component shown in Figure 15;

[0042] Figure 17 is a structural schematic diagram of the second component shown in Figure 15;

[0043] Figure 18 is a cross-sectional view of the second component shown in Figure 17;

[0044] Figure 19 is a cross-sectional view of the connecting device shown in Figure 15 from another perspective;

[0045] Figure 20 is a cross-sectional view of the connecting device shown in Figure 19, omitting the first component;

[0046] Figure 21 is a cross-sectional view of the connecting device shown in Figure 15, in which the first component and the second component are in the set position;

[0047] Figure 22 is a cross-sectional view of the connecting device shown in Figure 21 from another perspective;

[0048] Figure 23 is a cross-sectional view of the connecting device shown in Figure 15. The first component and the second component are in a set position, and the first mounting part is in a position that can move along the first axis.

[0049] Figure 24 is a cross-sectional view of the connecting device shown in Figure 23 from another perspective;

[0050] Figure 25 is a cross-sectional view of the connecting device according to the fourth embodiment of this application. The connecting device in the figure is in a state of being connected to an operating table accessory, and the force-applying part is in the first position.

[0051] Figure 26 is a cross-sectional view of the connecting device shown in Figure 25, with the force-applying part in the second position. Detailed Implementation

[0052] In the description of the embodiments of this application, it should be noted that the orientation or positional relationship indicated by the term "first direction" etc. is based on the orientation or positional relationship shown in Figure 13. These orientation terms are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0053] One embodiment of this application provides an operating bed, as shown in Figures 1 to 24. The operating bed includes a bed body (not shown), an operating bed accessory 200, and a connecting device 100 for connecting the operating bed accessory 200.

[0054] Please refer to Figures 3 to 24. A connecting device 100 according to an embodiment of this application includes a first component 10, a second component 20, a force-applying component 30, and a support member 40.

[0055] The second component 20 is locked when it engages with the first component 10, and is unlocked when they move away from each other in the first direction.

[0056] At least one of the force-applying component 30 and the second component 20 passes through the first component 10 and engages with the other, such that the force-applying component 30 can apply a force to the first component 10 and the second component 20 to bring them closer to each other in a first direction.

[0057] The force-applying component 30 is a component for medical personnel to apply external force. By applying external force to the force-applying component 30, medical personnel can bring the first component 10 and the second component 20 closer together in a first direction to achieve a locking mechanism. When the force of the force-applying component 30 is released, the first component 10 and the second component 20 can be unlocked by moving away from each other in the first direction under the action of the external force.

[0058] Referring to Figures 8, 9, and 13, the first component 10 may be provided with a first connecting portion 12, and the second component 20 may be provided with a second connecting portion 22 that mates with the first connecting portion 12. That is, the first component 10 and the second component 20 can be connected via the first connecting portion 12 and the second connecting portion 22, and the first connecting portion 12 and the second connecting portion 22 can move relative to each other along a first direction. The first connecting portion 12 may be sleeved over the second connecting portion 22, and both can move relative to each other. For example, the first connecting portion 12 may be a first cylindrical connecting portion, and the second connecting portion 22 may be a second cylindrical connecting portion, with the first cylindrical connecting portion sleeved over the second cylindrical connecting portion. Both can slide relative to each other along the first direction, and further, they can also rotate relative to each other.

[0059] Please refer to Figures 3, 5 and 13. The first component 10 and the second component 20 can be locked together by moving closer to each other and engaging along a first direction. The first component 10 and the second component 20 can be unlocked by moving further apart from each other along the first direction.

[0060] Please refer to Figures 8, 9 and 13. The first component 10 has a first locking part 13, and the second component 20 has a second locking part 23. The first locking part 13 and the second locking part 23 cooperate to lock the second component 20 with the first component 10.

[0061] The first locking part 13 is connected to the outer surface of the first connecting part 12, and the second locking part 23 is connected to the outer surface of the second connecting part 22. The first locking part 13 may be arranged around the outer periphery of the first connecting part 12, and the second locking part 23 may be arranged around the outer periphery of the second connecting part 22.

[0062] The first locking portion 13 and the second locking portion 23 can be locked by, for example, engagement. Referring to Figures 8, 9, and 13, the first locking portion 13 includes a first support structure 131 and a first engagement structure 132 disposed on the first support structure 131. The first support structure 131 is generally annular, connected to the outer peripheral surface of the first connecting portion 12. The first engagement structure 132 is disposed on the first support structure 131 and may have, for example, a toothed structure. The second locking portion 23 includes a second support structure 231 and a second engagement structure 232 disposed on the second support structure 231 and capable of engaging with the first engagement structure 132. The second support structure 231 is generally annular, connected to the outer peripheral surface of the second connecting portion 22. The second engagement structure 232 is disposed on the second support structure 231 and may have, for example, a toothed structure. The first engagement structure 132 and the second engagement structure 232 face each other in a first direction. As the first component 10 and the second component 20 approach each other along the first direction, the first meshing structure 132 and the second meshing structure 232 also approach each other until the first meshing structure 132 and the second meshing structure 232 mesh.

[0063] In other embodiments, the first engagement structure 132 and the second engagement structure 232 may not face each other in the first direction. For example, the first support structure 131 and the second support structure 231 may be inner and outer sleeved together. If the first support structure 131 extends into the second support structure 231, the first engagement structure 132 may be disposed on the outer side wall of the first support structure 131 and the second engagement structure 232 may be disposed on the inner side wall of the second support structure 231. If the second support structure 231 extends into the second support structure 231, the first engagement structure 132 may be disposed on the inner side wall of the first support structure 131 and the second engagement structure 232 may be disposed on the outer side wall of the second support structure 231.

[0064] In addition to the toothed first and second engagement structures shown in the figure, the first locking part 13 and the second locking part 23 can be non-circular or other shapes that are locked by inner and outer fitting. By engaging non-circular shapes such as a D-shape, the first locking part 13 and the second locking part 23 are locked and cannot rotate relative to each other.

[0065] In another embodiment, the first locking part 13 and the second locking part 23 can be locked by frictional contact. That is, after the first locking part 13 and the second locking part 23 come into contact, they lock under the action of friction.

[0066] For example, the first locking part 13 has a first end face, and the second locking part 23 has a second end face. The first end face and the second end face face face each other in a first direction, and the first end face face and the second end face face face contact each other through friction to achieve locking. As the first part 10 and the second part 20 approach each other in the first direction, the first end face face and the second end face face face face each other, until the first end face face and the second end face face face contact each other.

[0067] In other embodiments, the first locking part 13 and the second locking part 23 may also be sleeved together, and the outer side wall of the first locking part 13 and the inner side wall of the second locking part 23 are in frictional contact to achieve locking, or the inner side wall of the first locking part 13 and the outer side wall of the second locking part 23 are in frictional contact to achieve locking.

[0068] At least one of the force-applying component 30 and the second component 20 passes through the first component 10 and cooperates with the other. There can be various ways of cooperation. For example, in FIG13, the force-applying component 30 passes through the first component 10 and cooperates with the second component 20. In other embodiments, the second component 20 may pass through the first component 10 and cooperate with the force-applying component 30. Alternatively, both the force-applying component 30 and the second component 20 may pass through the first component 10 and cooperate with each other.

[0069] Please refer to Figures 1 to 6. One of the first component 10 and the second component 20 is fixedly connected to the support member 40, and the other of the first component 10 and the second component 20 is used to connect the operating table accessory 200. The support member 40 is used to connect to the bed frame so that the connecting device 100 can connect the operating table accessory 200 to the bed frame.

[0070] The type of operating table accessory 200 is not limited. For example, the operating table accessory 200 shown in Figure 1 is a headrest. In other embodiments, the operating table accessory 200 may also be a handrest or other accessories.

[0071] Please refer to Figures 4 and 6. At least one of the first component 10 and the force-applying component 30 is engaged with the second component 20 to limit their movement, so that the first component 10 and the second component 20 can only separate from each other in the first direction when they rotate relative to each other to a set position.

[0072] At the set position, the first component 10 and the second component 20 can be disassembled along the first direction, or the disassembled first component 10 and the second component 20 can be assembled together along the first direction. In other words, the set position is the disassembly and assembly position of the connecting device 100.

[0073] When the first component 10 and the second component 20 are in other positions besides the set position, the first component 10 and at least one of the force-applying components 30 are limited by the second component 20 so that the first component 10 and the second component 20 cannot be separated.

[0074] Please refer to Figure 2. When the connecting device 100 is connected to the operating table accessory 200, the support member 40 is stopped by the operating table accessory 200 to prevent the first component 10 and the second component 20 from rotating relative to each other to a set position, thereby making it impossible for the first component 10 and the second component 20 to separate.

[0075] When the operating table accessory 200 is connected to the connecting device 100, the position of the operating table accessory 200 can be adjusted by rotating the first component 10 and the second component 20 relative to each other.

[0076] The way in which the support member 40 is stopped by the operating table accessory 200 is not limited. For example, referring to Figure 2, the first component 10 can be detachably connected to the operating table accessory 200, and the second component 20 is fixedly connected to the support member 40. The support member 40 is stopped by the operating table accessory 200 to prevent the first component 10 and the second component 20 from rotating relative to each other to the set position.

[0077] Referring to Figures 1 and 2, when the operating table accessory 200 is installed on the first component 10, the first component 10 and the second component 20 can only rotate within a certain angular range. When the first component 10 and the second component 20 rotate relative to each other to other positions close to the set position, the operating table accessory 200 will contact the support member 40, thus preventing the first component 10 and the second component 20 from continuing to rotate relative to each other to the set position. Referring to Figure 6, after the operating table accessory 200 is removed from the first component 10, the support member 40 is not stopped, therefore, the first component 10 and the second component 20 can rotate relative to each other to the set position.

[0078] For example, referring to Figures 2, 5, and 6, the first component 10 may include an attachment connection portion 14 for fixing the operating table accessory 200. The attachment connection portion 14 is provided with a clearance notch 14a. Referring to Figure 6, during the installation of the connecting device 100, the support member 40 enters the clearance notch 14a at a set position. Referring to Figures 2 and 5, when the connecting device 100 is connected to the operating table accessory 200, the support member 40 is blocked by the operating table accessory 200 to prevent the first component 10 and the second component 20 from rotating relative to each other to the set position.

[0079] It is understood that, similarly, in other embodiments, the first component 10 is fixedly connected to the support member 40, and the operating table accessory 200 can also stop the support member 40 by being detachably connected to the second component 20. Additionally, the second component 20 may also be provided with an accessory connection portion 14 having a clearance notch 14a.

[0080] In other embodiments, the operating table can also use a stop to stop the support member 40. For example, the stop can be detachably mounted on one of the first component 10 and the second component 20 connected to the operating table accessory 200, or it can be detachably mounted on the operating table accessory 200 or the bed frame. The support member 40 is stopped by the stop to prevent the first component 10 and the second component 20 from rotating relative to each other to a set position. When the stop is removed, the stop releases its obstruction of the support member 40, allowing the first component 10 and the second component 20 to rotate relative to each other to the set position.

[0081] For example, the stop can be movably disposed in one of the first component 10 and the second component 20 and connected to the operating table accessory 200. The stop can also be movably disposed in the operating table accessory 200 or in the bed body. The stop can switch between a stop position and a avoidance position by movement. When the stop is in the stop position, it stops the support member 40 to prevent the first component 10 and the second component 20 from rotating relative to each other to a set position. When the stop is in the avoidance position, it avoids the support member 40 to release the stop on the support member 40.

[0082] Specifically, when the operating table accessory 200 is connected to the connecting device 100, medical personnel can apply external force to the force-applying component 30 to lock or unlock the first component 10 and the second component 20. When the first component 10 and the second component 20 are locked, they cannot rotate relative to each other. When the first component 10 and the second component 20 are unlocked, they can rotate relative to each other to adjust the position of the operating table accessory 200. After the operating table accessory 200 is adjusted to the appropriate position, medical personnel can apply external force to the force-applying component 30 to lock the first component 10 and the second component 20, thus maintaining the operating table accessory 200 in its current position.

[0083] Since the support member 40 is stopped by the operating table accessory 200 when the connecting device 100 is connected to the operating table accessory 200, the first component 10 and the second component 20 cannot rotate relative to each other to a set position that allows the first component 10 and the second component 20 to separate from each other. Therefore, during the adjustment of the position of the operating table accessory 200, the first component 10 and the second component 20 rotate relative to each other, but will not separate from each other along the first direction. Thus, the connecting device 100 can have a better anti-detachment function.

[0084] In the first embodiment of this application, referring to Figures 8 to 11 and 13, the first component 10 has a first limiting portion 11, and the second component 20 has a second limiting portion 21. The first limiting portion 11 has a first clearance opening 10b. During the installation of the connecting device 100, the first limiting portion 11 and the second limiting portion 21 approach each other. In the set position, the second limiting portion 21 passes through the first clearance opening 10b. When the first component 10 and the second component 20 rotate relative to each other away from the set position, the second limiting portion 21 is stopped by the first limiting portion 11 and cannot exit the first clearance opening 10b, and the first component 10 and the second component 20 cannot separate from each other in the first direction.

[0085] Please refer to Figures 8, 9 and 13. For the connecting device 100 in which the first connecting part 12 is sleeved outside the second connecting part 22 and the two can move relative to each other, the first limiting part 11 can be provided on the outer peripheral surface of the first connecting part 12, and the second limiting part 21 can be provided at a distance from the outer peripheral surface of the second connecting part 22. For example, the second limiting part 21 can be provided on the inner peripheral side of the second locking part 23, so that the first limiting part 11 and the second limiting part 21 can cooperate easily.

[0086] Of course, the first limiting part 11 may also be provided on the inner peripheral surface of the first connecting part 12, and the second limiting part 21 may be provided on the outer peripheral surface of the second connecting part 22.

[0087] Please refer to Figures 6, 8, 9, and 10. During the installation of the connecting device 100, in the set position, the first clearance opening 10b avoids the second limiting part 21, so that the second limiting part 21 can pass through the first clearance opening 10b. After the second limiting part 21 passes through the first clearance opening 10b, the first component 10 and the second component 20 can move away from the set position by relative rotation, so that the second limiting part 21 is at least partially misaligned with the first clearance opening 10b. This prevents the second limiting part 21 from exiting the first clearance opening 10b, and correspondingly, the first component 10 and the second component 20 cannot separate from each other in the first direction.

[0088] Please refer to Figures 10 and 11. When it is necessary to separate the first component 10 and the second component 20 from each other, the first component 10 and the second component 20 should be rotated relative to each other to a set position while the support member 40 is not blocked, and the second limiting part 21 should pass through the first clearance opening 10b.

[0089] In embodiments not shown in the figures, there may be only one second limiting portion 21 and only one first clearance opening 10b. For example, the outer periphery of the first connecting portion 12 is connected with a protruding edge, which has a radial opening so that the whole is an incomplete ring. The opening forms the first clearance opening 10b, and the protruding edge forms the first limiting portion 11.

[0090] Referring to the embodiments shown in Figures 9 to 11, the second component 20 may also have a second clearance opening 20b. During the installation of the connecting device 100, in the set position, the first limiting part 11 passes through the second clearance opening 20b. That is, in the set position, the second limiting part 21 passes through the first clearance opening 10b, and the first limiting part 11 passes through the second clearance opening 20b.

[0091] Specifically, there can be one or more first limiting parts 11 and second limiting parts 21. A clearance opening for another to pass through is formed between one of the first limiting parts 11 and the second limiting parts 21 (when there are multiple limiting parts) or on one of them (when there is only one limiting part) (see the first clearance opening 10b and the second clearance opening 20b in FIG11). As the first locking part 13 and the second locking part 23 approach each other, the other to enter through the clearance opening at a set position. Then, the first component 10 and the second component 20 are rotated relative to each other, causing the other to be misaligned with the clearance opening. The first component 10 and the second component 20 can only disengage the other from the clearance opening when they are rotated to the set position.

[0092] For example, referring to Figures 9 to 11, there may be multiple first limiting portions 11, and a first clearance opening 10b is formed between adjacent first limiting portions 11. There may also be multiple second limiting portions 21, and a second clearance opening 20b is formed between adjacent second limiting portions 21.

[0093] Please refer to Figure 10. After the first component 10 and the second component 20 rotate relative to each other, only a portion of the first limiting part 11 can move to a position that is at least partially offset from the second clearance opening 20b. In other words, even if a portion of the first limiting part 11 is located at the second clearance opening 20b, it will not affect the mutual blocking between the other first limiting parts 11 and the corresponding second limiting parts 21. The first component 10 and the second component 20 still cannot separate from each other along the first direction.

[0094] It is understood that in other embodiments, after the first component 10 and the second component 20 rotate relative to each other, each of the first limiting parts 11 may move to a position that is at least partially offset from the second clearance opening 20b.

[0095] Please refer to Figures 9, 11 and 13. The second component 20 may also have a second mounting groove 20c that communicates with the second clearance opening 20b. The first limiting part 11 enters the second mounting groove 20c through the second clearance opening 20b and is able to rotate and move in the first direction within the second mounting groove 20c.

[0096] In other embodiments, the first component 10 may also have a first mounting groove communicating with the first clearance opening 10b, and the second limiting part 21 enters the first mounting groove through the first clearance opening 10b and is able to rotate and move in the first direction within the first mounting groove.

[0097] In one embodiment, referring to Figures 7, 12, and 13, the first component 10 has a mounting hole 10a, and the force-applying component 30 includes a middle portion 31 and force-applying portions 32 and a first mounting portion 33 located at opposite ends of the middle portion 31. The middle portion 31 passes through the mounting hole 10a, and the first mounting portion 33 is connected to the second component 20. The cross-sectional dimensions of the middle portion 31 may be smaller than the cross-sectional dimensions of the force-applying portions 32 and the first mounting portion 33.

[0098] Please refer to Figures 9 and 13. The second component 20 may be provided with a first mounting channel 20a. The first mounting part 33 extends into the first mounting channel 20a and connects with the second component 20 by cooperating with the first mounting channel 20a.

[0099] In other embodiments, the first mounting part 33 may be provided with a second mounting channel, and the second component 20 may be provided with a second mounting part. The second mounting part extends into the second mounting channel and cooperates with the second mounting channel to connect the first mounting part 33 and the second component 20.

[0100] The first mounting part 33 can be threadedly connected to the second part 20. Medical personnel can rotate the force-applying part 30 to make the first part 10 and the second part 20 move closer to each other or further away from each other in the first direction.

[0101] For example, referring to Figure 13, the first mounting part 33 may be provided with an external thread, and the second part 20 is provided with a first mounting channel 20a having an internal thread, wherein the external thread and the internal thread are threadedly engaged.

[0102] In other embodiments, the first mounting part 33 may be provided with a second mounting channel having internal threads, and the second component 20 may be provided with a second mounting part having external threads, with the external threads engaging with the internal threads.

[0103] In other embodiments, the first mounting portion 33 may also be plugged into the second component 20. For example, the second component 20 has a first mounting channel 20a, and the first mounting portion 33 is plugged into the first mounting channel 20a. Alternatively, the second component 20 may have a second mounting portion, and the first mounting portion 33 may have a second mounting channel, with the second component 20 being plugged into the second mounting channel of the first mounting portion 33.

[0104] In one embodiment, referring to Figures 25 and 26, the force-applying part 32 includes a cam 32a. The force-applying part 32 is rotatably connected to the intermediate part 31. The force-applying component 30 also has an abutment part 34 on the side of the second component 20 opposite to the first component 10. Referring to Figure 25, when the force-applying part 32 is in the first position, the cam 32a abuts against the first component 10, and the abutment part 34 abuts against the second component 20. This allows the second component 20 and the first component 10 to move closer to each other and lock under the abutment force of the cam 32a and the abutment part 34. When the force-applying part 32 rotates to the second position, the abutment force of the cam 32a on the first component 10 is removed, allowing the first component 10 and the second component 20 to unlock by moving away from each other in a first direction. In this embodiment, the force-applying part 32 passes through the first component 10 and engages with the second component 20.

[0105] In one embodiment of this application, referring to FIG13, the external dimensions of the intermediate portion 31 are smaller than the external dimensions of the first mounting portion 33. The first mounting portion 33 can pass through the mounting hole 10a along the first axis Z1 and then move to the second axis Z2. The second component 20 approaches the first component 10 along the second axis Z2 and is connected to the second component 20. The first axis Z1 and the second axis Z2 are spaced apart along the second direction, such that when the first mounting portion 33 is connected to the second component 20, the orthographic projection outline of the first mounting portion 33 intersects the orthographic projection outline of the mounting hole 10a on the same projection plane perpendicular to the first direction, wherein the first direction and the second direction are different.

[0106] Specifically, the first axis Z1 and / or the second axis Z2 may be parallel to the first direction or inclined relative to the first direction.

[0107] The mounting hole 10a shown in Figures 7 and 13 is a circular hole. The center line Z1 of the mounting hole 10a is offset from the second axis Z2, that is, they are not coaxial. For a circular hole, the first axis Z1 is the center line Z1 of the mounting hole 10a.

[0108] In other embodiments, the mounting hole 10a may also be a non-circular hole. For example, the shape of the mounting hole 10a may be elliptical, polygonal, racetrack-shaped, irregular, etc. For non-circular holes, if the shape of the non-circular hole is an axially symmetric (e.g., rectangular) or centrally symmetric (e.g., square) structure with a center line, then the first axis Z1 is the center line of the mounting hole 10a. If the non-circular hole is an asymmetrical structure, then the first axis Z1 is equivalent to the center line of the area of ​​the mounting hole 10a through which the first mounting part 33 can pass.

[0109] During the assembly of the connecting device 100, the first mounting part 33 can be passed through the mounting hole 10a on the first component 10 along the first axis Z1, and then the force-applying component 30 can be moved in the direction of the second axis Z2. Finally, the first mounting part 33 can be connected to the second component 20 along the second axis Z2, so that the first component 10, the second component 20 and the force-applying component 30 can be assembled together.

[0110] Please refer to Figure 13. After assembly, on the same projection plane perpendicular to the first direction, the orthographic projection outline of the first mounting part 33 intersects with the orthographic projection outline of the mounting hole 10a. The part of the first component 10 located on the periphery of the mounting hole 10a can limit and stop the first mounting part 33, thereby effectively preventing the first mounting part 33 from coming out of the mounting hole 10a and causing the force-applying component 30 to fall off.

[0111] Referring to Figure 13, the first mounting portion 33 has a stop surface 33a that protrudes from the middle portion 31. After the first mounting portion 33 is connected to the second component 20, on a projection plane perpendicular to the first direction, the orthographic projection profile of the stop surface 33a and the orthographic projection profile of the mounting hole 10a are at least partially offset; for example, their orthographic projection profiles may partially overlap. The external dimension of the stop surface 33a is larger than the external dimension of the middle portion 31.

[0112] The entire first mounting portion 33 shown in Figures 12 and 13 can be connected to the second component 20. In some embodiments, referring to Figure 14, the first mounting portion 33 may include a mounting section 331 and a stop section 332 having a stop surface 33a. The stop section 332 is located between the intermediate portion 31 and the mounting section 331. After the first mounting portion 33 is connected to the second component 20, the stop section 332 is located between the mounting section 331 and the mounting hole 10a. The stop section 332 serves as a stop and is not used for connection to the second component 20. The stop section 332 shown in Figure 14 is spaced apart from the mounting section 331; in some embodiments, the stop section 332 may be adjacent to the mounting section 331. The end face of the stop section 332 near the intermediate portion 31 forms the stop surface 33a.

[0113] When the operating table accessory 200 is connected to the connecting device 100, at least a portion of the stop surface 33a can always extend beyond the outline of the mounting hole 10a, thereby better preventing the first mounting part 33 from coming off the mounting hole 10a.

[0114] Please refer to Figures 15 to 24. Another connection device 100 according to this application embodiment includes a force-applying component 30, which includes a middle part 31 and force-applying parts 32 and a first mounting part 33 located at opposite ends of the middle part 31. The second component 20 is provided with a first mounting channel 20a, and the first mounting part 33 cooperates with the first mounting channel 20a.

[0115] Referring to Figures 17 and 23, the first mounting channel 20a includes a first channel portion 20a1 having a channel opening 20a11 and a second channel portion 20a2 communicating with the first channel portion 20a1. A first mounting part 33 passes through the mounting hole 10a and the channel opening 20a11 on the second component 20 along the first axis Z1, allowing the first mounting part 33 to enter the first channel portion 20a1. Then, the first mounting part 33 moves to the second axis Z2 and inserts into the second channel portion 20a2 along the second axis Z2, engaging with the second channel portion 20a2, thereby assembling the first component 10, the second component 20, and the force-applying component 30 together. The first axis Z1 and the second axis Z2 are spaced apart along the second direction, such that when the first mounting part 33 engages with the second channel portion 20a2, on a projection plane perpendicular to the first direction, the orthographic projection profile of the first mounting part 33 is at least partially offset from the orthographic projection profile of the channel opening 20a11. For example, their orthographic projection profiles may partially overlap.

[0116] The mounting hole 10a shown in Figures 19 and 21 is a circular hole. The center line Z1 of the mounting hole 10a is offset from the second axis Z2, that is, they are not coaxial. For a circular hole, the first axis Z1 is the center line Z1 of the mounting hole 10a.

[0117] In other embodiments, the mounting hole 10a may also be a non-circular hole. For example, the shape of the mounting hole 10a may be elliptical, polygonal, racetrack-shaped, irregular, etc. For non-circular holes, if the shape of the non-circular hole is an axially symmetric (e.g., rectangular) or centrally symmetric (e.g., square) structure with a center line, then the first axis Z1 is the center line of the mounting hole 10a. If the non-circular hole is an asymmetrical structure, then the first axis Z1 is equivalent to the center line of the area of ​​the mounting hole 10a through which the first mounting part 33 can pass.

[0118] The channel opening 20a11 in Figure 17 is roughly gourd-shaped, consisting of two circles of different sizes. The diameter of the larger circle is larger than the outer diameter of the first mounting portion 33, while the diameter of the smaller circle is smaller than the outer diameter of the first mounting portion 33 but larger than the outer dimension of the middle portion 31. After the first mounting portion 33 enters the first channel portion 20a1 along the first axis Z1 from the larger circle, the first mounting portion 33 shifts to the second axis Z2 to mate with the second channel portion 20a2, while the middle portion 31 shifts from the larger circle to the smaller circle.

[0119] Please refer to Figures 21 and 24. Regardless of whether the mounting hole 10a is a circular hole as shown in the figures or a non-circular hole in other embodiments, in the set position, both circles of different sizes are at least partially exposed at the mounting hole 10a, so that the first mounting portion 33 can enter the first channel portion 20a from the larger circle along the first axis Z1, and the middle portion 31 can be shifted from the larger circle to the smaller circle.

[0120] Please refer to Figures 21 and 22. After assembly, on the projection plane perpendicular to the first direction, the orthographic projection outline of the first mounting part 33 is at least partially offset from the orthographic projection outline of the channel opening 20a11. The portion of the second component 20 located around the channel opening 20a11 can limit and stop the first mounting portion 33, preventing it from detaching from the channel opening 20a11 along the second axis Z2. This effectively prevents the first component 10 from separating from the second component 20. For example, taking a gourd-shaped channel opening 20a11 as an example (see Figures 19 and 20), regardless of whether the mounting hole 10a is a circular hole as shown in the figures or a non-circular hole in other embodiments, when the connecting device 100 is connected to the operating table accessory 200, the portion of the second component 20 located around the channel opening 20a11 limits and stops the first mounting portion 33. Therefore, the first mounting portion 33 still cannot detach from the channel opening 20a11 along the second axis Z2. This arrangement essentially prevents the first component 10 from separating from the second component 20 by limiting the engagement between the force-applying component 30 and the second component 20.

[0121] Please refer to Figures 15 and 16. The first mounting part 33 has a stop surface 33a. When the first mounting part 33 is connected to the second component 20, on the projection plane perpendicular to the first direction, the orthographic projection outline of the stop surface 33a is at least partially offset from the orthographic projection outline of the channel opening 20a11, and the two can partially overlap.

[0122] The entire first mounting portion 33 shown in Figures 15 and 16 can be connected to the second component 20. In some embodiments, as shown in Figure 14, the first mounting portion 33 may also include a mounting section 331 and a stop section 332 having a stop surface 33a. When the connecting device 100 is connected to the operating table accessory 200, the stop section 332 is located between the mounting section 331 and the mounting hole 10a. The stop section 332 serves as a stop, while the mounting section 331 mates with the second channel portion 20a2, and the stop section 332 does not mate with the second channel portion 20a2. The stop section 332 may be spaced apart from the mounting section 331 or connected to the mounting section 331.

[0123] Please continue referring to Figures 15 and 16. Preferably, when projected onto the same plane along the first direction, the orthographic projection of the stop surface 33a can surround the outer periphery of the orthographic projection of the middle portion 31, and the external dimension of the stop surface 33a is larger than the external dimension of the middle portion 31. This arrangement can better ensure that a portion of the stop surface 33a always faces the part of the second component 20 located around the channel opening 20a11 when the connecting device 100 is connected to the operating table accessory 200. That is, when the connecting device 100 is connected to the operating table accessory 200, the first component 10 and the second component 20 rotate about the second axis Z2. Regardless of whether the first component 10 and the second component 20 rotate relative to each other about the second axis Z2, a portion of the stop surface 33a always extends beyond the outline of the channel opening 20a11, thereby better preventing the first mounting part 33 from dislodging from the channel opening 20a11.

[0124] Please continue to refer to Figures 21 to 24. In the set position, the first mounting part 33 can pass through the mounting hole 10a and the channel opening 20a11 along the first axis Z1. That is to say, in the set position, the first component 10, the second component 20 and the force-applying component 30 can be assembled together. Similarly, also in the set position, the first mounting part 33 can pass through the channel opening 20a11 and the mounting hole 10a along the first axis Z1 to move to the outside of the first component 10, so that the first component 10 and the second component 20 can be separated from each other in the first direction.

[0125] Please refer to Figures 15, 19, and 20. When the connecting device 100 is connected to the operating table accessory 200, the channel opening 20a11 is at least partially offset from the mounting hole 10a, so that the portion of the first component 10 located on the periphery of the mounting hole 10a stops the first mounting part 33. This is equivalent to the portion of the first component 10 located on the periphery of the mounting hole 10a at least partially blocking the channel opening 20a11. Even if the first mounting part 33 retracts from the second channel portion 20a2 to the first channel portion 20a1 and extends from the channel opening 20a11, the first mounting part 33 will not be able to detach from the mounting hole 10a because it is blocked by the portion of the first component 10 located on the periphery of the mounting hole 10a and cannot be accurately aligned with the mounting hole 10a. Thus, when the connecting device 100 is connected to the operating table accessory 200, it can be better ensured that the first component 10 and the second component 20 cannot separate from each other in the first direction.

[0126] Referring to Figures 15 to 24, in another embodiment of the connecting device 100 of this application, the first component 10 has a mounting hole 10a, and the second component 20 is provided with a first mounting channel 20a. The first mounting channel 20a includes a first channel portion 20a1 having a channel opening 20a11 and a second channel portion 20a2 located on the side of the first channel portion 20a1 opposite to the mounting hole 10a. The force-applying part 3230 includes a force-applying part and a first mounting part 33. After passing through the mounting hole 10a and the channel opening 20a11 along the first axis Z1, the first mounting part 33 moves to the second axis Z2. The first mounting part 33 is inserted into the second channel portion 20a2 from the first channel portion 20a1 along the second axis Z2 and cooperates with the second channel portion 20a2. The first axis Z1 and the second axis Z2 are spaced apart along the second direction, such that when the first mounting part 33 and the second channel part 20a2 are engaged, on the same projection plane perpendicular to the first direction, the orthographic projection outline of the first mounting part 33 and the orthographic projection outline of the channel opening 20a11 are at least partially misaligned.

[0127] Please refer to Figures 21 to 24. When the first component 10 and the second component 20 are rotated relative to each other to the set position, the first mounting part 33 can pass through the mounting hole 10a and the channel opening 20a11 along the first axis Z1. That is to say, the first component 10, the second component 20 and the force-applying component 30 can only be assembled together in the set position. Similarly, the first component 10 and the second component 20 can be separated from each other along the first direction in the set position.

[0128] Please refer to Figures 15, 19 and 20. When the connecting device 10 is connected to the operating table accessory 200, the support member 40 is stopped by the operating table accessory 200 to prevent the first component 10 and the second component 20 from rotating relative to each other to a set position.

[0129] In other words, the connecting device 100 prevents the first component 10 from separating from the second component 20 by the limiting cooperation between the force-applying component 30 and the second component 20 and the stop of the operating table accessory 200 on the support component 40, thereby enabling the connecting device 100 to have a better anti-detachment function.

[0130] In the description of this application, the references to terms such as "in one embodiment," "in some embodiments," "in other embodiments," or "exemplary," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the embodiments of this application. In this application, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine the different embodiments or examples described in this application, as well as the features of the different embodiments or examples.

[0131] The above description is merely a preferred embodiment of this application and is not intended to limit the application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application are included within the scope of protection of this application.

Claims

1. A connecting device for connecting operating table accessories, comprising: First component; The second component locks when it engages with the first component and unlocks when they move away from each other in a first direction. A force-applying component, at least one of the force-applying component and the second component passing through the first component and engaging with the other, such that the force-applying component can apply a force to the first component and the second component to bring them closer together and engage with each other along the first direction; A support member, wherein one of the first component and the second component is fixedly connected to the support member, and the other of the first component and the second component is used to connect to operating table accessories; Wherein, the first component and the second component are mutually positioned so that the first component and the second component can be separated from each other along the first direction when they are in a set position; When the operating table accessory is connected to the connecting device, the support member can be stopped by the operating table accessory to prevent the first component and the second component from rotating relative to each other to the set position.

2. The connecting device according to claim 1, wherein the first component has a first limiting portion, the second component has a second limiting portion, the first component has a first clearance opening, and during the installation of the connecting device, when the first limiting portion and the second limiting portion are in the set position, the second limiting portion can pass through the first clearance opening; after the second limiting portion passes through the first clearance opening and the first component and the second component rotate relative to each other away from the set position, the second limiting portion is stopped by the first limiting portion, so that the first component and the second component cannot separate from each other along the first direction.

3. The connecting device according to claim 2, wherein the second component further has a second clearance opening, and during the installation of the connecting device, when the first limiting part and the second limiting part are in the set position, the first limiting part can pass through the second clearance opening.

4. The connecting device according to claim 3, wherein the first component further comprises a first mounting groove communicating with the first clearance opening, the second limiting portion being able to enter the first mounting groove through the first clearance opening, and being able to rotate within the first mounting groove and move along the first direction; and / or, The second component also has a second mounting groove communicating with the second clearance opening, and the first limiting part can enter the second mounting groove through the second clearance opening, and can rotate and move in the second mounting groove along the first direction.

5. The connecting device according to claim 3, wherein the number of the first limiting portions is multiple, and the first clearance opening is formed between adjacent first limiting portions; There are multiple second limiting parts, and the second clearance opening is formed between adjacent second limiting parts.

6. The connecting device according to claim 2 or 3, wherein the first component has a first connecting portion, the second component has a second connecting portion, the first connecting portion is sleeved on the second connecting portion and the two are movable relative to each other; The first limiting portion is disposed on the outer peripheral surface of the first connecting portion, and the second limiting portion is disposed at a distance from the outer peripheral surface of the second connecting portion; or... The first limiting part is disposed on the inner peripheral surface of the first connecting part, and the second limiting part is disposed on the outer peripheral surface of the second connecting part.

7. The connecting device according to claim 1, wherein the first component has a mounting hole, the force-applying component includes a middle portion and force-applying portions and a first mounting portion located at opposite ends of the middle portion, the middle portion passing through the mounting hole, and the first mounting portion being connected to the second component.

8. The connecting device according to claim 7, wherein the second component is provided with a first mounting channel, and the first mounting portion cooperates with the first mounting channel to connect the first mounting portion to the second component; or, The first mounting part is provided with a second mounting channel, and the second component is provided with a second mounting part. The second mounting part cooperates with the second mounting channel to connect the first mounting part and the second component.

9. The connecting device according to claim 8, wherein the first mounting portion is threadedly connected to the second component.

10. The connecting device according to claim 8, wherein the first mounting channel comprises a first channel portion having a channel opening and a second channel portion located on the side of the first channel portion opposite to the mounting hole, the first mounting part passing through the mounting hole and the channel opening along a first axis and then moving to a second axis, the first mounting part being inserted into the second channel portion from the first channel portion along the second axis and engaging with the second channel portion; the first axis and the second axis are spaced apart along a second direction such that when the first mounting part engages with the second channel portion, on the same projection plane perpendicular to the first direction, the orthographic projection profile of the first mounting part is at least partially offset from the orthographic projection profile of the channel opening; wherein, The first direction is perpendicular to the second direction; In the designated position, the first mounting portion can pass through the mounting hole and the channel opening along the first axis; when the operating table accessory is connected to the connecting device, the channel opening is at least partially offset from the mounting hole, so that the portion of the first component located on the periphery of the mounting hole stops the first mounting portion.

11. The connecting device according to claim 10, wherein the shape of the channel opening is a gourd shape formed by combining two circles of different sizes, wherein, After the first mounting part enters the first channel portion from the larger circle along the first axis, the first mounting part is offset to the second axis to cooperate with the second channel portion, and the middle part is offset from the larger circle to the smaller circle.

12. The connecting device according to claim 7, wherein the external dimension of the intermediate portion is smaller than the external dimension of the first mounting portion, and the first mounting portion passes through the mounting hole along the first axis and is connected to the second component along the second axis; the first axis and the second axis are spaced apart, such that when the first mounting portion is connected to the second component, on the same projection plane perpendicular to the first direction, the orthographic projection contour of the first mounting portion intersects with the orthographic projection contour of the mounting hole.

13. The connecting device according to any one of claims 10-12, wherein the first mounting portion has a stop surface, and in the use or installation state of the connecting device, at least a portion of the stop surface always extends beyond the outline of the mounting hole.

14. The connecting device according to claim 13, wherein the first mounting portion includes a mounting section and a stop section having the stop surface, the stop section being located between the mounting section and the mounting hole, the stop section being connected to or spaced apart from the mounting section; the mounting section is connected to the second component.

15. The connecting device according to any one of claims 10-12, wherein the mounting hole is a circular hole, and the center line of the mounting hole is offset from the second axis; or, The mounting hole is a non-circular hole.

16. The connecting device according to claim 1, wherein the other of the first component and the second component includes an accessory connecting portion for fixing the operating table accessory, the accessory connecting portion being provided with a clearance notch, and during the installation of the connecting device, the support member enters the clearance notch at the set position; when the connecting device is connected to the operating table accessory, the support member is blocked by the operating table accessory to prevent the first component and the second component from rotating relative to each other to the set position.

17. A connecting device for connecting operating table accessories, comprising: A first component with mounting holes for connecting operating table accessories; The second component is locked when it engages with the first component and unlocks when they move away from each other in a first direction. The support member is fixedly connected to the second component; as well as A force-applying component that passes through the first component and engages with the second component, such that the force-applying component can apply a force to the first component and the second component to bring them closer together and engage with each other along the first direction; The force-applying component includes a middle portion and force-applying portions and a first mounting portion located at opposite ends of the middle portion. The external dimensions of the middle portion are smaller than the external dimensions of the first mounting portion. When the first mounting portion is connected to the second component, the middle portion passes through the mounting hole. After the first mounting portion passes through the mounting hole along a first axis and moves along a second direction different from the first direction, the second component approaches the first component along the second axis and connects with the first mounting portion. The first axis and the second axis are spaced apart along the second direction, such that when the first mounting portion is connected to the second component, on the same projection plane perpendicular to the first direction, the orthographic projection contour of the first mounting portion intersects with the orthographic projection contour of the mounting hole.

18. The connecting device according to claim 17, wherein the second component is provided with a first mounting channel, and the first mounting portion mates with the first mounting channel along a second axis to connect the second component; or, The first mounting part is provided with a second mounting channel, and the second component is provided with a second mounting part, which cooperates with the second mounting channel.

19. The connecting device according to claim 17 or 18, wherein the mounting hole is a circular hole, and the center line of the mounting hole is offset from the second axis; or, The mounting hole is a non-circular hole.

20. The connecting device according to claim 17 or 18, wherein the first mounting portion has a stop surface, and at least a portion of the stop surface always extends beyond the outline of the mounting hole on the same projection plane perpendicular to the first direction.

21. The connecting device according to claim 20, wherein the mounting portion includes a mounting section and a stop section, the stop section being located between the mounting section and the mounting hole, the stop section being connected to or spaced apart from the mounting section; and the mounting section being connected to the second component.

22. A connecting device for connecting operating table accessories, comprising: The first component has mounting holes; The second component locks when it engages with the first component and unlocks when they move away from each other in a first direction; wherein the second component is provided with a first mounting channel, the first mounting channel including a first channel portion having a channel opening and a second channel portion on the side opposite to the mounting hole; A force-applying component includes a force-applying part and a first mounting part. The first mounting part passes through the mounting hole and the channel opening along a first axis and then moves to a second axis. The first mounting part is inserted into the second channel portion from the first channel portion along the second axis and engages with the second channel portion. The first axis and the second axis are spaced apart along a second direction, such that when the first mounting part engages with the second channel portion, on the same projection plane perpendicular to the first direction, the orthographic projection profile of the first mounting part is at least partially offset from the orthographic projection profile of the channel opening. The first direction is different from the second direction. A support member, wherein one of the first component and the second component is fixedly connected to the support member, and the other of the first component and the second component is used to connect to operating table accessories; When the first component and the second component rotate relative to each other to a set position, the first mounting part can pass through the mounting hole and the channel opening along the first axis; When the operating table accessory is connected to the connecting device, the support is stopped by the operating table accessory to prevent the first component and the second component from rotating relative to each other to the set position.

23. The connecting device according to any one of claims 1-22, wherein the first component has a first locking portion and the second component has a second locking portion; the first locking portion and the second locking portion achieve locking through meshing or frictional contact.

24. The connecting device according to claim 23, wherein the first locking part includes a first support structure and a first engaging structure disposed on the first support structure, the second locking part includes a second support structure and a second engaging structure disposed on the second support structure and capable of engaging with the first engaging structure, the first engaging structure and the second engaging structure facing each other in the first direction.

25. The connecting device according to claim 23, wherein the first locking portion has a first end face, the second locking portion has a second end face, the first end face and the second end face face face each other in the first direction, and the first end face face and the second end face face face face contact each other by friction to achieve locking.

26. The connecting device according to claim 23, wherein the first component has a first connecting portion, the second component has a second connecting portion slidably connected to the first connecting portion, the first locking portion is circumferentially disposed on the outer periphery of the first connecting portion, and the second locking portion is circumferentially disposed on the outer periphery of the second connecting portion.

27. An operating table, comprising a table body, operating table accessories, and a connecting device as described in any one of claims 1-26, wherein the support member is connected to the table body.

28. The operating table of claim 27, wherein the other of the first component and the second component is detachably connected to the operating table accessory, and the support is stopped by the operating table accessory to prevent the first component and the second component from rotating relative to each other to the predetermined position.

29. The operating table according to claim 27, further comprising a stop; The stop is detachably disposed on one of the first component and the second component connected to the operating table accessory, or on the operating table accessory or the bed body. The support member is stopped by the stop to prevent the first component and the second component from rotating relative to each other to the set position; or... The stop member is movably disposed on one of the first component and the second component connected to the operating table accessory, or on the operating table accessory or the bed body. The stop member can switch between a stopping position and a yielding position by movement. When the stop member is in the stopping position, it stops the support member to prevent the first component and the second component from rotating relative to each other to the set position. When the stop member is in the yielding position, it avoids the support member to release the stop on the support member.

30. The operating table according to any one of claims 27-29, wherein the operating table accessory is a headrest or a handrest.

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