Supporting device

Abstract

The embodiment of the invention provides a supporting device. The supporting device comprises a supporting assembly, a ball joint assembly, an operation assembly and a clamping assembly. The ball joint assembly comprises a ball head and a seat body assembly; the seat body assembly is connected with the supporting assembly, the seat body assembly is provided with a ball head containing part, and at least one part of the ball head is contained in the ball head containing part; the operation assembly is provided with a locking position and an unlocking position, when the operation assembly is located at the locking position, the ball head is locked on the seat body assembly through the operation assembly, and the supporting assembly can be locked in the current posture; at the unlocking position, the seat body assembly and the ball head can move relatively, so that the universal adjustment of the angle of the supporting assembly can be realized; the clamping assembly comprises a first clamping piece, a second clamping piece and an elastic piece, the first clamping piece and the second clamping piece are rotatably connected, and the elastic piece is used for applying elastic force to the first clamping piece and / or the second clamping piece so that the first clamping piece and the second clamping piece can clamp an object under the action of the elastic force, one-hand operation can be conveniently achieved, and the clamping efficiency is improved. Operation is simple and convenient.

Description

Technical Field

[0001] This application relates to the technical field of medical devices, and particularly to a support device. Background Art

[0002] The support device is an accessory of the operating table and is mainly used for support during the operation. In the related art, the handrest of the support device needs to rotate horizontally by 180° and be locked relative to the joint.

[0003] However, in the related art, the handrest can only be adjusted in angle in the horizontal plane; in addition, the support device needs to be fixed to the operating table through other structures, which is inconvenient to operate. Summary of the Invention

[0004] In view of this, the embodiments of this application are expected to provide a support device that is convenient for universal angle adjustment and convenient to connect to an object.

[0005] The embodiments of this application provide a support device, including:

[0006] A support component for supporting a human body part;

[0007] A ball joint component, including a ball head and a seat body component; the seat body component is connected to the support component, the seat body component has a ball head receiving portion, and at least a part of the ball head is received in the ball head receiving portion;

[0008] An operation component having a locking position and an unlocking position. When in the locking position, the operation component locks the ball head on the seat body component; when in the unlocking position, the seat body component and the ball head can move relative to each other;

[0009] A clamping component, including a first clamping member, a second clamping member and an elastic member. The first clamping member and the second clamping member are rotatably connected, and a clamping space for clamping an object is defined between them. The elastic member is used to apply an elastic force to the first clamping member and / or the second clamping member so that the first clamping member and the second clamping member clamp the object under the action of the elastic force;

[0010] A connection component connecting the ball head and the clamping component.

[0011] In the support device according to the embodiment of the present application, when in the locked position, the operating component locks the ball head on the seat body component. At this time, the support component, the seat body component and the ball head are locked together, and there is no relative movement between the ball head and the support component, so as to lock the support component in the current posture. When in the unlocked position, the seat body component and the ball head can move relative to each other. At this time, the support component can swing in all directions relative to the ball head, realizing the all-round adjustment of the angle of the support component. When the clamping component needs to be connected to an object, it only needs to open the clamping component and hook it on the object, and one-step operation is in place, so that single-handed operation can be realized, and the operation is simple and convenient. Thereafter, when it is necessary to adjust the angle of the support component, after switching the operating component from the locked position to the unlocked position, the all-round adjustment of the angle of the support component can be realized. After the adjustment is completed, switch the operating component from the unlocked position to the locked position again. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a schematic diagram of a support device according to an embodiment of the present application;

[0013] Figure 2 is Figure 1 a schematic diagram of another perspective of the structure shown, wherein the operating component is in the locked position;

[0014] Figure 3 is Figure 2 a schematic diagram of the cooperation between the structure shown and the side rail;

[0015] Figure 4 is Figure 2 a schematic diagram of the structure shown with the operating component in the unlocked position;

[0016] Figure 5 is Figure 2 a sectional view of the structure shown;

[0017] Figure 6 is Figure 5 a partially enlarged schematic diagram of the structure shown;

[0018] Figure 7 is a schematic diagram of a support device according to another embodiment of the present application, wherein the sectional position is the same as that of Figure 5 the sectional position of;

[0019] Figure 8 is Figure 6 a partially enlarged schematic diagram of the structure shown;

[0020] Figure 9 is Figure 8 a schematic diagram of the ball joint assembly in;

[0021] Figure 10 is Figure 8 a schematic diagram of the operating component in.

[0022] Figure 11 Schematic diagram of a support device according to another embodiment of the present application, wherein the cross-sectional position is the same as that of Figure 9 .

[0023] Description of reference numerals

[0024] 1. Support assembly; 11. Support plate; 12. Cover; 1a. Groove; 2. Ball joint assembly; 21. Seat body; 21a. Accommodating space; 21b. First opening; 21c. Second opening; 21d. Second connection hole; 21f. Step structure; 22. Ball head; 22a. Driving groove; 24. Pressing block; 241. Pressing main body part; 242. Connecting part; 24b. First wedge surface; 25. Elastic structure; 26. Elastic member; 27. First connecting piece; 271. Limiting part; 272. Rod part; 3. Operating assembly; 31. Driving part; 31a. Second wedge surface; 32. Connecting rod; 321. Large diameter part; 33. Operating part; 34. First bearing; 35. Second bearing; 42. Second connecting piece; 5. Clamping assembly; 51. First clamping piece; 511. Clamping seat; 512. First clamping arm; 513. Extension part; 51a. Accommodating cavity; 51b. Notch; 52. Second clamping piece; 521. Second clamping arm; 522. Handle; 5a. Clamping space; 5b. Clamping opening; 5c. Installation groove; 53. Connecting piece; 6. Side rail; 7. Connection assembly; 71. Connection head. Detailed implementation manners

[0025] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0026] In the various specific technical features described in the specific embodiments, they can be combined in any suitable manner without conflict. For example, different embodiments and technical solutions can be formed by combining different specific technical features. To avoid unnecessary repetition, various possible combination methods of the various specific technical features in the present invention will not be described separately.

[0027] In the following description, the terms "first / second / ..." involved only distinguish different objects and do not indicate that there is any same or related relationship between the objects. It should be understood that the orientation descriptions "above", "below", "outside", "inside" involved are all orientations in the normal use state, and the "left" and "right" directions represent the left and right directions shown in the specific corresponding schematic diagram, which may or may not be the left and right directions in the normal use state.

[0028] It should be noted that the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising such element. "A plurality" means greater than or equal to two.

[0029] An embodiment of the present application provides a support device, which includes a support assembly 1, a ball joint assembly 2, and an operation assembly 3.

[0030] The support assembly 1 is used to support a human body part. For example, the support assembly 1 is used to support the arm of a human body. At this time, the support assembly 1 can also be called an arm support assembly. More specifically, as an accessory of the operating table, the support device supports the arms of the patient sitting, lying or reclining on the operating table.

[0031] The specific shape of the support assembly 1 is not limited. For example, the support assembly 1 is generally plate-shaped.

[0032] In some embodiments, please refer to Figure 8 and Figure 11 , the support assembly 1 includes a support plate 11 and a covering member 12. The support plate 11 is a structural load-bearing member of the support assembly 1 and has good structural strength. For example, the support plate 11 can be a metal plate or a plastic plate with good hardness.

[0033] The covering member 12 is disposed on one side of the support plate 11 along its thickness direction. Specifically, it is disposed on the side of the support plate 11 facing the human body part.

[0034] The specific type of the covering member 12 is not limited. For example, it can be a magic tape.

[0035] The ball joint assembly 2 includes a ball head 22 and a seat body assembly. The seat body assembly is connected to the support assembly 1. For example, the seat body assembly is connected to the side of the support assembly 1 away from the human body part (such as the arm).

[0036] The seat body assembly has a ball head receiving portion, and at least a part of the ball head 22 is received in the ball head receiving portion.

[0037] The operation assembly 3 has a locking position ( Figures 1 to 3 the position shown) and an unlocking position ( Figure 4 the position shown).

[0038] When in the locked position, the operating component 3 locks the ball head 22 onto the seat body component. At this time, the support component 1, the seat body component, and the ball head 22 are locked together, and there is no relative movement between the ball head 22 and the support component 1, thereby locking the support component 1 in the current posture.

[0039] When in the unlocked position, the seat body component and the ball head 22 can move relative to each other. At this time, the support component 1 can swing universally relative to the ball head 22 to achieve universal adjustment of the angle of the support component 1.

[0040] Please refer to Figure 5 , the support device further includes a clamping component 5 and a connecting component 7. The connecting component 7 connects the ball head 22 and the clamping component 5. That is to say, between the ball joint component 2 and the clamping component 5, the connection is achieved through the connecting component 7 and the ball head 22.

[0041] Exemplarily, please refer to Figures 1 to 7 , the clamping component 5 includes a first clamping member 51, a second clamping member 52, and an elastic member.

[0042] The first clamping member 51 and the second clamping member 52 are rotatably connected, that is to say, the two can rotate relative to each other. Please refer to Figure 6 , a clamping space 5a for clamping an object is defined between the two, and one side of the clamping space 5a has a clamping opening 5b. The object enters and exits the clamping space 5a through the clamping opening 5b.

[0043] The elastic member is used to apply an elastic force to the first clamping member 51 and / or the second clamping member 52, so that the first clamping member 51 and the second clamping member 52 clamp the object under the action of the elastic force.

[0044] The structure of the object is not limited. For example, please refer to Figure 3 , in the embodiment of the present application, the clamping component 5 clamping the side rail 6 is taken as an example for description. The side rail 6 can be the side rail of an operating bed or the side rail of other medical devices, which is not limited here.

[0045] Specifically, the elastic member applies a driving torque to the first clamping member 51 and / or the second clamping member 52, and the driving torque makes the first clamping member 51 and the second clamping member 52 have a tendency to move towards each other, so that the first clamping member 51 and the second clamping member 52 form a clamping force on the object clamped in the clamping space 5a.

[0046] The specific type of the elastic member is not limited. For example, compression springs, tension springs, torsion springs, etc.

[0047] Please refer to Figure 1 and Figure 2, when the object has not entered the clamping space 5a and no external force acts on the clamping assembly 5, the size of the clamping opening 5b is small. When it is necessary to clamp the clamping assembly 5 onto the object, an external force is applied to the first clamping member 51 and / or the second clamping member 52. The first clamping member 51 and / or the second clamping member 52 rotate along the direction of opening the clamp, increasing the clamping opening 5b so that the object enters the clamping space 5a from the clamping opening 5b. After that, the external force is withdrawn, and the first clamping member 51 and / or the second clamping member 52 rotate towards the direction of closing the clamp under the action of the elastic member, so that the first clamping member 51 and the second clamping member 52 can be clamped onto the object without manual locking.

[0048] For the support device according to the embodiment of the present application, when the clamping assembly 5 needs to be connected to an object, it only needs to open the clamping assembly 5 and hook it onto the object, and one-step operation is in place, so that single-handed operation can be realized and the operation is simple and convenient. Thereafter, when it is necessary to adjust the angle of the support assembly 1, after switching the operation assembly 3 from the locking position to the unlocking position, universal adjustment of the angle of the support assembly 1 can be realized. After the adjustment is completed, switch the operation assembly 3 from the unlocking position to the locking position again.

[0049] Exemplarily, please refer to Figure 2 and Figure 6 , the first clamping member 51 includes a clamping seat 511, first clamping arms 512 provided on opposite sides of the clamping seat 511, and an extension portion 513. The second clamping member 52 includes a second clamping arm 521 and a handle 522.

[0050] The clamping seat 511 has a receiving cavity 51a, and the second clamping member 52 is rotatably connected to the cavity wall of the receiving cavity 51a. That is to say, a part of the second clamping member 52 is located inside the receiving cavity 51a. The receiving cavity 51a can limit the rotation amplitude of the second clamping member 52.

[0051] The clamping space 5a is located between the first clamping arm 512 and the second clamping arm 521. Please refer to Figure 6 , a notch 51b is provided on the side wall of the clamping seat 511 close to the side where the extension portion 513 is located, and the handle 522 passes through the notch 51b.

[0052] The handle 522 and the extension portion 513 are oppositely arranged. When it is necessary to unlock or place the object into the clamping space 5a, an external force presses the handle 522, so that the handle 522 moves towards the side where the extension portion 513 is located, so that the first clamping member 51 and the second clamping member 52 can be opened, that is, the first clamping member 51 and the second clamping member 52 can rotate relatively along the direction of opening the clamp.

[0053] In some embodiments, the first clamping member 51 is an integral component. Thus, it is beneficial to improve the structural strength of the first clamping member 51, reduce the assembly process, and improve the assembly efficiency.

[0054] In some embodiments, the second clamping member 52 is an integral component. Thus, it is beneficial to improve the structural strength of the second clamping member 52, reduce the assembly process, and improve the assembly efficiency.

[0055] Exemplarily, the connecting assembly 7 is connected to the extending portion 513. The extending portion 513 is away from the object. Therefore, the connecting assembly 7 can also be away from the object, reducing the possibility of interference between the connecting assembly 7 and the object.

[0056] In some embodiments, the connecting assembly 7 and the ball head 22 can be a split structure and connected together. In some other embodiments, the connecting assembly 7 and the ball head 22 can also be an integral component. Thus, the structural strength of the connecting assembly 7 and the ball head 22 can be improved, and the assembly process can also be reduced, improving the assembly efficiency.

[0057] In some embodiments, the connecting assembly 7 is a rigid member, that is, there is no relative movement between any parts of the connecting assembly 7.

[0058] In some other embodiments, the connecting assembly 7 includes multiple components, and relative movement can occur between at least two components.

[0059] The connection method between the connecting assembly 7 and the clamping assembly 5 is not limited.

[0060] Exemplarily, the first clamping member 51 is located on the side of the second clamping member 52 close to the support assembly 1. Please refer to Figure 6 , the connecting assembly 7 includes a connecting head 71. The first clamping member 51 is provided with a mounting groove 5c, and at least a part of the connecting head 71 is received in the mounting groove 5c and fixed in the mounting groove 5c. In this embodiment, the cooperation method between the mounting groove 5c and the connecting head 71 can increase the contact area between the first clamping member 51 and the connecting head 71, improve the connection reliability between the two. In addition, there is no need to design some complex connection structures, which is beneficial to maintaining the continuity of the outer surface of the first clamping member 51, reducing the cleaning dead angle, and facilitating cleaning and disinfection.

[0061] Exemplarily, the shape of the mounting groove 5c is adapted to the shape of the connecting head 71, so that after the connecting head 71 is received in the mounting groove 5c, there is a very small gap or almost no gap between the outer surface of the connecting head 71 and the groove wall of the mounting groove 5c.

[0062] It should be noted that the installation groove 5c can be a through groove that penetrates the outer surfaces of the opposite sides of the first clamping member 51; it can also be a blind groove that only penetrates one side surface of the first clamping member 51. Since the blind groove does not penetrate the other side surface of the first clamping member 51, therefore, the appearance continuity of the first clamping member 51 can be further maintained, and the disinfection dead angle can be further reduced.

[0063] In the embodiment of the present application, the installation groove 5c is taken as an example of a blind groove for description.

[0064] The fixing method of the connecting head 71 and the installation groove 5c is not limited.

[0065] For example, in some embodiments, the connecting head 71 and the installation groove 5c are bonded by an adhesive.

[0066] In some other embodiments, please refer to Figure 6 , internal threads are provided on the groove wall of the installation groove 5c, external threads are provided on the outer periphery of the connecting head 71, and the connecting head 71 is threadedly connected to the installation groove 5c. During assembly, only the connecting head 71 needs to be screwed into the installation groove 5c, and the operation is simple and convenient. In addition, the connecting head 71 can fill the space of the installation groove 5c, so there are no extra gaps and almost no disinfection dead angles, which is convenient for disinfection and further improves the appearance continuity of the first clamping member 51.

[0067] In still some other embodiments, please refer to Figure 7 , one end of the installation groove 5c close to the second clamping member 52 is a closed end, that is, the installation groove 5c is a blind groove; the supporting device includes a connecting member 53, and the connecting member 53 passes through the closed end from the side of the first clamping member 51 facing the second clamping member 52 and is fixed to the connecting head 71. The connecting member 53 can be, for example, a screw.

[0068] In some embodiments, the supporting device includes a connecting member 53, and the connecting member 53 passes through the side wall of the installation groove 5c from a lateral side of the first clamping member 51 and abuts against or passes through the outer peripheral surface of the connecting head 71. Among them, the lateral direction refers to the direction intersecting with the direction in which the connecting head 71 is inserted into the installation groove 5c. For example, it can be the direction perpendicular to both of them. In this embodiment, the installation groove 5c can be a blind groove or a through groove that penetrates the surfaces of the opposite sides of the first clamping member 51.

[0069] It should be noted that the number of the connecting members 53 can be one or more. Multiple connecting members 53 can penetrate from the same side of the first clamping member 51 or from different sides of the first clamping member 51.

[0070] In an embodiment where the connector 71 is threadedly connected to the mounting groove 5c, the ball head 22 is provided with a driving cooperation structure for cooperating with a force - applying tool to drive the ball head 22 and the whole of the connecting assembly 7 to rotate together, so that the connector 71 rotates in the mounting groove 5c to achieve threaded connection.

[0071] The force - applying tool can be, for example, a wrench, and the wrench can be an internal - angle wrench or an external - angle wrench. Specifically, the internal - angle wrench can be an internal - triangular wrench, an internal - hexagonal wrench, etc., and the external - angle wrench can be an external - triangular wrench, an external - hexagonal wrench, etc.

[0072] During assembly, by using the cooperation between the force - applying tool and the driving cooperation structure, the connector 71 can be conveniently rotated to tighten the connector 71.

[0073] In some embodiments, the driving cooperation structure is located on the side of the ball head 22 facing the support assembly 1, that is to say, the driving cooperation structure is located on the side of the ball head 22 away from the first opening 21b. In this way, the ball head 22 can be screwed from the side of the seat body assembly facing the support assembly 1.

[0074] Exemplarily, please refer to Figure 6 、 Figure 8 、 Figure 9 and Figure 11 , the seat body assembly is provided with a first opening 21b, the first opening 21b is located on the side of the seat body assembly away from the support assembly 1, a part of the ball head 22 passes through the first opening 21b, or the structure connected to the ball head 22 passes through the first opening 21b. It should be noted that the structure connected to the ball head 22 refers to the structure at the end of the connecting assembly 7 close to the ball head 22.

[0075] It should be noted that the aperture of the first opening 21b is smaller than the diameter of the ball head 22 to ensure that the ball head 22 cannot escape from the first opening 21b.

[0076] The specific structure of the driving cooperation structure is not limited, as long as it can be adapted to the force - applying tool and transmit torque.

[0077] For example, please refer to Figure 8 、 Figure 8 and Figure 11 , in some embodiments, the driving cooperation structure is a driving groove 22a recessed into the ball head 22, and the cross - sectional shape of the driving groove 22a is non - circular, for example, it can be a regular polygon, etc. Correspondingly, the part of the force - applying tool extending into the driving groove 22a is columnar, and the cross - sectional shape is also non - circular and adapted to the shape of the driving groove 22a.

[0078] In some other embodiments, the driving and mating structure is a convex post protruding from the surface of the ball head 22, and the cross-sectional shape of the convex post is non-circular. Correspondingly, the force-applying tool has an inner hole, and the shape of the inner hole is also non-circular and adapted to the cross-sectional shape of the convex post.

[0079] In some embodiments, the connecting assembly 7 includes an interface rod, the clamping assembly 5 is provided with an interface, and a part of the interface rod penetrates through the interface. The supporting device includes a locking member that passes through the side wall of the interface and abuts against the outer peripheral surface of the interface rod to fix the interface rod in the interface. Specifically, when the locking member does not abut against the outer peripheral surface of the interface rod, the interface rod can linearly move and / or rotate in the interface. In this way, the spatial position of the supporting assembly 1 can be adjusted within a large range. After the adjustment is completed, the locking member is then abutted against the outer peripheral surface of the interface rod. At this time, the interface rod is fixed in the interface and cannot move.

[0080] Exemplarily, please refer to Figure 8 、 Figure 9 and Figure 11 , the seat body assembly includes a seat body 21 and a pressing block 24. A first opening 21b is provided on the side of the seat body 21 away from the supporting assembly 1, and a second opening 21c is provided on the side facing the supporting assembly 1. A part of the ball head 22 or a structure connected to the ball head 22 passes through the first opening 21b, and the pressing block 24 is inserted into the seat body 21 from the second opening 21c and is used to abut the ball head 22 against the seat body 21.

[0081] Specifically, the seat body 21 has a receiving space 21a. After the ball head 22 is inserted into the receiving space 21a from the second opening 21c, the pressing block 24 is then inserted into the receiving space 21a from the second opening 21c. In this way, the ball head 22 is restricted by the pressing block 24 and the seat body 21.

[0082] In this embodiment, since the ball head 22, the pressing block 24, etc. can all be inserted into the seat body 21 from the second opening 21c, and the second opening 21c is located on the side of the seat body 21 facing the supporting assembly 1, the second opening 21c cannot be seen on the side of the seat body 21 facing away from the supporting assembly 1, which is beneficial to improving the aesthetic appearance. Furthermore, since the pressing or releasing of the pressing block 24 is realized through the operating assembly 3, and then the locking or releasing of the ball head 22 is realized, there is no need to lock the ball head 22 by screwing a screw through the seat body 21, and there is no need to provide screw holes and insert screws on the seat body 21, which is beneficial to maintaining the continuity of the outer surface of the seat body 21, can improve the aesthetic appearance, and is also convenient for disinfection, reducing or avoiding disinfection dead zones.

[0083] In the related art, screw holes are provided on the seat body, and screws pass through the screw holes and abut against the ball head to lock the ball head. The screw caps of the screws are exposed on the outer surface of the seat body, which not only destroys the continuity of the appearance surface of the seat body, but also easily accumulates dirt and grime at the positions of the screw holes, and bacteria are likely to breed, which is not conducive to cleaning and disinfection.

[0084] Exemplarily, the support assembly 1 covers the second opening 21c. The user cannot see the second opening 21c at all from the outside. In this way, both the aesthetic appearance of the support assembly 1 can be improved, and foreign objects can be prevented from entering the second opening 21c.

[0085] It should be noted that it can be the above-mentioned support plate 11 that blocks the second opening 21c, or it can be the above-mentioned covering member 12 that blocks the opening, which is not limited here.

[0086] Exemplarily, please refer to Figure 8 and Figure 9 The ball joint assembly 2 further includes an elastic structure 25. When the operating assembly 3 is in the unlocked position, the elastic structure 25 exerts an elastic force on the pressing block 24 towards the ball head 22, so that the pressing block 24 abuts against the ball head 22 on the seat body 21 under the action of the elastic force.

[0087] In this embodiment, when in the unlocked position, the elastic force of the elastic structure 25 causes the pressing block 24 to generate a pre-tightening force on the ball head 22, that is, a damping force. When no external force swings the support assembly 1, under the action of the pre-tightening force, the support assembly 1 can maintain its current posture and will not swing randomly; when it is necessary to adjust the angle of the support assembly 1, an external force swings the support assembly 1, and the support assembly 1 and the seat body 21 can rotate relative to the ball head 22, and there is also a damping feel. That is to say, when the operating assembly 3 is in the unlocked position, the elastic force exerted by the elastic structure 25 on the pressing block 24 is relatively small. This elastic force can not only keep the seat body 21 and the support assembly 1 in the current posture without external force, but also allow the seat body 21 and the support assembly 1 to swing under the action of an external force.

[0088] It should be noted that when the operating assembly 3 is in the locked position, the elastic structure 25 can exert an elastic force on the pressing block 24, or can not exert an elastic force on the pressing block 24. In short, as long as it can exert an elastic force on the pressing block 24 towards the ball head 22 when in the unlocked position.

[0089] The type of the elastic structure 25 is not limited. For example, an elastic pad, a spring, etc. Among them, the material of the elastic pad can be rubber, silica gel and other materials.

[0090] Exemplarily, please refer to Figure 8 、 Figure 9 and Figure 11, the ball joint assembly 2 includes a first connecting member 27. The first connecting member 27 passes through the pressing block 24 and is fixed to the seat body 21, and the pressing block 24 and the first connecting member 27 can move relative to each other along the length direction of the first connecting member 27. That is to say, the first connecting member 27 first passes through the pressing block 24 and then is fixed to the seat body 21. In this way, the first connecting member 27 does not need to penetrate the surface of the seat body 21 on the side away from the support assembly 1, which is beneficial to maintaining the integrity of the appearance surface of the seat body 21.

[0091] In addition, during assembly, the pressing block 24 can be connected to the seat body 21 through the first connecting member 27. At this time, the pressing block 24, the seat body 21, and the ball head 22 are connected together to form a pre-assembled whole as shown in Figure 9 . On the assembly line, the pre-assembled whole, the operating assembly 3, and the support assembly 1 can be assembled, which improves the assembly efficiency.

[0092] It should be noted that since the pressing block 24 and the first connecting member 27 can move relative to each other along the length direction of the first connecting member 27, the first connecting member 27 does not interfere with the movement of the pressing block 24, which facilitates the movement of the pressing block 24 under the action of the driving part 31. Furthermore, the first connecting member 27 plays a role in restricting and guiding the movement of the pressing block 24.

[0093] The number of the first connecting members 27 is not limited, and it can be one or multiple.

[0094] Exemplarily, the number of the first connecting members 27 is multiple, and the multiple first connecting members 27 are arranged at intervals along the circumference of the second opening 21c.

[0095] The specific shape of the first connecting member 27 is not limited.

[0096] Exemplarily, please refer to Figure 8 , Figure 9 and Figure 11 , the first connecting member 27 includes a limiting part 271 and a rod part 272. The pressing block 24 has a first connection hole, and the seat body 21 has a second connection hole 21d. One end of the second connection hole 21d is closed, that is to say, the second connection hole 21d is a blind hole. The rod part 272 sequentially passes through the first connection hole and the second connection hole 21d and is fixed in the second connection hole 21d. The size of the limiting part 271 is larger than the size of the first connection hole, and it is located on the side of the pressing block 24 facing the support assembly 1.

[0097] That is to say, the rod part 272 can pass through the first connection hole, while the limiting part 271 cannot pass through the first connection hole. Therefore, after the rod part 272 is fixed in the second connection hole 21d, the pressing block 24 cannot be separated from the first connecting member 27 connecting member 53.

[0098] Specifically, the distance between the end face of the second connection hole 21d of the seat body 21 and the limiting portion 271 is greater than the thickness of the corresponding portion of the pressing block 24, so that the pressing block 24 can be restricted to move within the gap between the limiting portion 271 and the seat body 21.

[0099] The fixing manner of the rod portion 272 in the second connection hole 21d is not limited. For example, it can be bonded.

[0100] In some embodiments, the rod portion 272 includes a threaded section, and the threaded section is threadedly connected to the second connection hole 21d. For example, the first connecting member 27 can be a screw. In this way, the threaded section of the rod portion 272 can be screwed into the second connection hole 21d.

[0101] Threads can be pre - machined on the hole wall of the second connection hole 21d, that is, the second connection hole 21d is a threaded hole. Of course, it can also be that the second connection hole 21d is pre - machined into a hole without threads, and the threaded section of the rod portion 272 can be a self - tapping screw, and tapping is performed during the process of screwing it into the second connection hole 21d.

[0102] It should be noted that the rod section of the rod portion 272 located in the first connection hole can be a smooth rod or a threaded rod section, as long as there is a gap between the outer peripheral surface of the rod portion 272 and the hole wall of the first connection hole, so that the rod portion 272 can move relative to the first connection hole along its length direction.

[0103] In some embodiments, please refer to Figure 8 and Figure 9 , the elastic structure 25 is clamped between the pressing block 24 and the limiting portion 271 and is in a compressed state, and is used to apply an elastic force towards the ball head 22 to the pressing block 24. In this embodiment, the elastic structure 25 can be a cylindrical spring, a disc spring, or an elastic pad, etc.

[0104] In this embodiment, since the elastic structure 25 is in a compressed state, therefore, whether the operating component 3 is in the unlocking position or the locking position, the elastic structure 25 in the compressed state can always apply an elastic force towards the ball head 22 to the pressing block 24. Therefore, when the operating component 3 is in the unlocking position, the elastic force applied by the elastic structure 25 to the pressing block 24 generates a damping force between the ball head 22 and the pressing block 24, and between the ball head 22 and the seat body 21, which is beneficial to maintaining the ball head 22 and the seat body 21 in the current relative position, and thus is beneficial to maintaining the support assembly 1 in the current posture.

[0105] Exemplarily, please refer to Figure 9 , a partial depression is formed on one side of the seat body 21 facing the support assembly 1 to form a stepped structure 21f, and the stepped structure 21f surrounds the second opening 21c. The pressing block 24 includes a pressing main body portion 241 and a connecting portion 242, and the pressing main body portion 241 is inserted into the accommodation space 21a through the second opening 21c.

[0106] Exemplarily, the shape of the outer peripheral surface of the pressing main body 241 is adapted to the shape of the inner wall of the accommodating space 21a. For example, the cross-sectional shape of the accommodating space 21a is substantially circular, and the pressing main body 241 is substantially cylindrical.

[0107] The connecting portion 242 is connected to the outer peripheral side of the pressing main body 241, and at least a part of it is located in the recessed area corresponding to the step structure 21f along the height direction. The first connecting member 27 passes through the connecting portion 242. Specifically, the above-mentioned first connecting hole is provided on the connecting portion 242. The connecting portion 242 does not extend into the accommodating space 21a, which facilitates the first connecting member 27 and the connecting member 53 to pass through the connecting portion 242 and be fastened to the seat body 21. In this way, the protruding degree of the connecting portion 242 on the top surface of the seat body 21 can be reduced, and it can even not exceed the top surface of the seat body 21. Even when the pressing block 24 is connected, the structure can be made compact.

[0108] In some embodiments, the seat body 21 is an integral structure. In this way, it is convenient for manufacturing, saves assembly time, and can further improve the appearance continuity of the seat body 21.

[0109] In some specific embodiments, please refer to Figure 2 , the seat body 21 includes a plate portion 211 and a cylindrical portion 212. The plate portion 211 abuts against the bottom surface of the support assembly 1. The cylindrical portion 212 protrudes from the surface of the plate portion 211 on the side away from the support assembly 1. The above-mentioned first opening 21b is provided at one end of the cylindrical portion 212 away from the plate portion 211, and the second opening 21c is provided on the plate portion 211. In this way, the external dimensions of the seat body 21 can be made smaller.

[0110] In some embodiments, please refer to Figure 9 , the limiting portion 271 of the first connecting member 27 protrudes from the end surface of the seat body 21 facing the side where the support assembly 1 is located. In this way, the dimension of the seat body 21 along the length direction of the first connecting member 27 and the connecting member 53 can be reduced, and the structural compactness of the ball joint assembly 2 can be improved.

[0111] Exemplarily, please refer to Figure 8 and Figure 11 , a groove 1a is provided on the side of the support assembly 1 facing the ball joint assembly 2, and a part of the first connecting member 27 is accommodated in the groove 1a. Specifically, the limiting portion 271 of the first connecting member 27 is accommodated in the groove 1a. In this way, the limiting portion 271 does not additionally increase the dimension of the operating assembly 3 and the seat body 21 along the length direction of the first connecting member 27. The connection manner between the seat body 21 and the support assembly 1 is not limited.

[0112] Exemplarily, in some embodiments, please refer to Figure 8 and Figure 11, the support device further includes a second connecting member 42, and the second connecting member 42 passes through the support assembly 1 and is fixed to the seat body 21. In this way, the second connecting member 42 does not need to penetrate through the side of the seat body 21 away from the support assembly 1, which is beneficial to maintaining the integrity and continuity of the appearance surface on the side of the seat body 21 away from the support assembly 1, can not only enhance the appearance aesthetics, but also facilitate disinfection and reduce or avoid disinfection dead zones.

[0113] In some specific embodiments, the second connecting member 42 passes through the support plate 11, and the covering member 12 shields the second connecting member 42, that is to say, the user cannot see the second connecting member 42 from the outside of the support device.

[0114] In some embodiments, the ball joint assembly 2 forms a pre-assembled whole, and the pre-assembled whole and the support assembly 1 are connected by the second connecting member 42. In this way, it is convenient to realize modular design, modular manufacturing, and modular assembly, improve production efficiency, and reduce production costs.

[0115] In some embodiments, the operating assembly 3 is a rigid member as a whole, that is, there is no relative movement between any two parts in the operating assembly 3. In other embodiments, the operating assembly 3 can be a combination of a flexible member and a rigid member.

[0116] In the embodiments of the present application, the description is made by taking the operating assembly 3 as a rigid member as a whole as an example.

[0117] Exemplarily, please refer to Figure 11 , the operating assembly 3 includes a driving part 31, an operating part 33, and a connecting rod 32. The driving part 31 and the operating part 33 are arranged at opposite ends of the connecting rod 32. The operating part 33 is for the user to operate.

[0118] The specific shape of the operating part 33 is not limited. For example, it can be a handwheel, an "L"-shaped handle, etc., and is not limited here.

[0119] The connecting rod 32 can be a straight rod or a wavy rod, etc., and is not limited here.

[0120] The connecting rod 32 extends substantially along the extension direction of the support assembly 1. Specifically, the operating part 33 is located at one end of the support assembly 1 in the length direction, and the ball joint assembly 2 is located at the other end of the support assembly 1 in the length direction. The connecting rod 32 is attached to the support assembly 1, and the support assembly 1 supports and positions the connecting rod 32.

[0121] Please refer to Figure 8 and Figure 11 , the driving part 31 is arranged between the support assembly 1 and the pressing block 24.

[0122] Specifically, there is an installation space between the support component 1 and the seat body 21, and the driving part 31 is arranged in the installation space. That is to say, the installation space is jointly defined by the support component 1 and the seat body 21. It can be understood that the support component and the seat body 21 constrain the driving part 31 and one end of the connecting rod 32 close to the driving part 31 between them. In this way, there is no need to open a hole in the seat body 21 to pass through the driving part 31, which is beneficial to maintaining the appearance continuity of the seat body 21 and further reducing the disinfection dead zone. For example, a receiving groove can be opened on the support component 1, and the receiving groove extends to the installation space between the support component 1 and the seat body 21. That is to say, the part of the receiving groove located between the support component and the seat body 21 constitutes a part of the installation space. The driving part 31 and a part of the connecting rod 32 are placed in the receiving groove, and then the seat body 21 can be buckled on the bottom side of the support component 1.

[0123] The operating component 3 can rotate or move linearly. Specifically, the operating part 33 drives the driving part 31 to rotate around the first axis or move linearly along the first axis through the connecting rod 32. The driving part 31 cooperates with the pressing block 24 to convert the movement of the driving part 31 into the movement of the pressing block 24 towards the side where the ball head 22 is located. Among them, the first axis intersects with the movement direction of the pressing block 24. Preferably, the first axis is perpendicular to the movement direction of the pressing block 24.

[0124] In this embodiment, the user applies a force to the operating part 33, and the operating part 33 drives the connecting rod 32 and the driving part 31 to move together. By pressing or releasing the pressing block 24 through the driving part 31, the locking and unlocking of the ball head 22 are realized, and the operation is convenient.

[0125] For example, in the embodiment where the operating component 3 moves linearly, for example, taking the direction of the linear movement of the operating component 3 as the first direction. When the operating component 3 moves as a whole from the first end to the second end in the first direction, the driving part 31 drives the pressing block 24 to move towards the ball head 22, thereby locking the ball head 22; when the operating component 3 moves as a whole from the second end to the first end in the first direction, the driving part 31 releases the pressing block 24, thereby enabling the pressing block 24 to release the ball head 22. In this embodiment, the movement directions of the operating component 3 and the pressing block 24 intersect, and the cooperation between the driving part 31 and the pressing block 24 is equivalent to a commutation mechanism, converting the linear movement of the operating component 3 into the linear movement of the pressing block 24.

[0126] For another example, in the embodiment where the operating component 3 rotates, when the operating component 3 rotates in the first rotation direction, the driving portion 31 drives the pressing block 24 to move towards the ball head 22, thereby locking the ball head 22; when the operating component 3 rotates in the second rotation direction, the driving portion 31 releases the pressing block 24, thereby enabling the pressing block 24 to release the ball head 22. Wherein, the first rotation direction and the second rotation direction are opposite. In this embodiment, the cooperation between the driving portion 31 and the pressing block 24 converts the rotation of the operating component 3 into a linear motion of the pressing block 24.

[0127] The specific structure of the driving portion 31 is not limited.

[0128] For example, please refer to Figure 8 and Figure 10 , in some embodiments, the driving portion 31 includes an eccentric wheel. The operating component 3 can rotate around its own axis, and the axis of the eccentric wheel and the axis of the connecting rod 32 are parallel and offset. It should be noted that the axis of the connecting rod 32 and the rotation axis of the operating component 3 are the same, and the two are on the same straight line.

[0129] The operating component 3 is used to drive the eccentric wheel to rotate when rotating, so that the eccentric wheel presses or releases the pressing block 24, thereby realizing the switching between the locking position and the unlocking position.

[0130] Specifically, during the rotation of the connecting rod 32, the distance between the axis of the eccentric wheel and the pressing block 24 will change. When rotating in the first rotation direction, the distance between the axis of the eccentric wheel and the pressing block 24 becomes smaller and smaller, the force exerted by the eccentric wheel on the pressing block 24 becomes larger and larger, and the pressing block 24 is pushed to move towards the ball head 22. When rotating in the second rotation direction, the distance between the axis of the eccentric wheel and the pressing block 24 becomes larger and larger, the force exerted by the eccentric wheel on the pressing block 24 is small, and may even completely disengage from the pressing block 24, thus realizing the release of the pressing block 24.

[0131] Exemplarily, please refer to Figure 8 and Figure 10 , the operating component 3 further includes a first bearing 34. The first bearing 34 is sleeved on the outer periphery of the eccentric wheel. The outer ring of the first bearing 34 abuts against the pressing block 24, and the inner ring of the first bearing 34 is fixed to the eccentric wheel, and the inner ring and the outer ring can rotate relative to each other. In this way, both the rotational resistance of the operating component 3 can be reduced, and the driving portion 31 can be prevented from scratching the pressing block 24.

[0132] Exemplarily, please refer to Figure 10 , the operating component 3 further includes a second bearing 35. The second bearing 35 is sleeved on the outer periphery of the connecting rod 32, and the center of the second bearing 35 is located on the axis of the connecting rod 32. The second bearing 35 plays a positioning role for the connecting rod 32, and at the same time can also reduce the rotational resistance of the connecting rod 32 and improve the smoothness of rotation.

[0133] Exemplarily, the outer diameter of the second bearing 35 is greater than the outer diameter of the first bearing 34. In a plane perpendicular to the rotation axis, the projection of the first bearing 34 is located within the projection of the second bearing 35.

[0134] The outer ring of the second bearing 35 is fixed between the support assembly 1 and the seat body 21. Thus, the second bearing 35 cannot displace along the movement direction parallel to the pressing block 24. When the driving part 31 applies a force to the pressing block 24, the pressing block 24 generates a reaction force on the driving part 31. By fixing the outer ring of the second bearing 35 through the support assembly 1 and the seat body 21, a reaction force support is provided for the operating assembly 3, reducing the possibility of the operating assembly 3 moving in a crosstalk manner along the movement direction parallel to the pressing block 24.

[0135] Exemplarily, please refer to Figure 10 , a large-diameter portion 321 is provided at one end of the connecting rod 32 close to the eccentric wheel. The outer diameter of the large-diameter portion 321 is greater than the outer diameter of the eccentric wheel. The second bearing 35 is sleeved on the outer periphery of the large-diameter portion 321. Thus, when the driving part 31 swings around the axis of the connecting rod 32, it is not easy to interfere with the support assembly 1.

[0136] In some other embodiments, the driving part 31 includes a cam, and the operating assembly 3 can rotate around its own axis. The operating assembly 3 is used to drive the cam to rotate when rotating, so that the cam presses or releases the pressing block 24, thereby realizing the switching between the locking position and the unlocking position. In this embodiment, the outer peripheral surface of the cam cooperates with the pressing block 24, so as to drive the pressing block 24 to move linearly during the rotation of the operating assembly 3.

[0137] Among them, the axis of the cam and the axis of the connecting rod 32 can be on the same straight line. Of course, the axes of the two can also be parallel and arranged at intervals.

[0138] In some embodiments, please refer to Figure 11 , the pressing block 24 has a first wedge surface 24b, and the driving part 31 has a second wedge surface 31a. The first wedge surface 24b and the second wedge surface 31a are in contact with each other and can slide relative to each other. The operating assembly 3 is used to adjust the holding depth of the driving part 31 in the installation space during movement, so as to realize the switching between the locking position and the unlocking position. Among them, the holding depth is parallel to the axis of the connecting rod 32.

[0139] In this embodiment, the deeper the holding depth of the driving part 31 in the installation space, the second wedge surface 31a presses the first wedge surface 24b, thereby converting the displacement of the driving part 31 in the holding depth direction into the displacement of the pressing block 24 in the movement direction towards the ball head 22.

[0140] It should be noted that in this embodiment, the movement mode of the operating assembly 3 can be rotation or linear movement.

[0141] For example, in the embodiment where the operating component 3 rotates, there is a displacement in the direction of the abutting depth during the rotation. For example, the operating component 3 is threadedly connected to the support component 1. When rotating in the first rotation direction, the abutting depth continuously increases, and when rotating in the second rotation direction, the abutting depth gradually decreases. In addition, in this embodiment, the second wedge surface 31a can be understood as a conical surface. Of course, the movement of the operating component 3 can also be a linear movement.

[0142] For another example, the operating component 3 can move linearly along the first direction. Please refer to Figure 11 , the support device further includes an elastic member 26. The elastic member 26 is used to apply a force to the operating component 3 along the first direction and towards the side where the ball joint component 2 is located, so as to hold the operating component 3 in the locked position. The operating component 3 can move linearly along the first direction and away from the side where the ball joint component 2 is located under the action of an external force, so as to switch from the locked position to the unlocked position.

[0143] In this embodiment, the elastic member 26 is beneficial to holding the operating component 3 in the locked position, and thus helps to lock the support component 1 in the current position, improving the locking reliability. When unlocking is required, the external force overcomes the force of the elastic member 26, and the operating component 3 as a whole moves along the first direction and away from the side where the ball joint component 2 is located. At this time, the operating component 3 switches from the locked position to the unlocked position.

[0144] In some embodiments, the default initial position of the operating component 3 is the locked position. After the operating component 3 is in the unlocked position and the external force is withdrawn, the elastic member 26 can drive the operating component 3 to move to the locked position. That is to say, the elastic member 26 can drive the operating component 3 to automatically reset from the unlocked position to the locked position.

[0145] In some embodiments, the connecting rod 32 is hidden inside the support component 1. That is to say, the connecting rod 32 cannot be seen from the outside of the support device. This not only does not easily generate dirt and is convenient for cleaning and disinfection, but also makes the overall appearance of the support component 1 beautiful.

[0146] The type of the covering member 12 is not limited. For example, in some embodiments, the covering member 12 can be a magic tape provided on the support plate 11. In some embodiments, the support component 1 further includes a soft pad, and the soft pad can be pasted on the magic tape. In this way, it is convenient for the installation and disassembly of the soft pad.

[0147] In some embodiments, the support plate 11 is provided with a receiving groove. The side of the receiving groove facing the covering member 12 has a notch. The connecting rod 32 is placed in the receiving groove through the notch, and the covering member 12 covers the notch. In this way, after the covering member 12 is installed on the support plate 11, the effect of covering the connecting rod 32 can be achieved.

[0148] The following will be described in conjunction with the accompanying drawingsFigure 6 Briefly describe the assembly process of the illustrated embodiment.

[0149] Assemble the clamping assembly 5 into a pre-assembled whole.

[0150] Insert the ball head 22 and the connecting head 71 into the accommodation space 21a through the second opening 21c of the seat body 21, and the connecting head 71 passes through the first opening 21b; align the connecting head 71 with the mounting groove 5c, insert a wrench into the driving groove 22a, rotate the ball head 22, and screw the connecting head 71 into the mounting groove 5c to realize the connection between the connecting head 71 and the clamping assembly 5.

[0151] Subsequently, place the pressing block 24 into the accommodation space 21a through the second opening 21c. Then pass the first connecting member 27 through the connecting portion 242 and screw it into the second connecting hole 21d.

[0152] After that, install the operating assembly 3 and the support assembly 1.

[0153] In the description of this application, the descriptions referring to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the embodiments of this application. In this application, the schematic expressions of the above terms are not necessarily directed to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine the different embodiments or examples described in this application and the features of different embodiments or examples.

[0154] The above is only the preferred embodiment of this application and is not used to limit this application. For those skilled in the art, this application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included in the protection scope of this application.

Claims

1. A support device, characterized in that, Comprising: A support assembly for supporting a human body part; A ball joint assembly including a ball head and a seat body assembly; The seat body assembly is connected to the support assembly, the seat body assembly has a ball head receiving portion, and at least a part of the ball head is received in the ball head receiving portion; An operating assembly having a locking position and an unlocking position. In the locking position, the operating assembly locks the ball head to the seat body assembly; in the unlocking position, the seat body assembly and the ball head can move relative to each other; A clamping assembly including a first clamping member, a second clamping member and an elastic member. The first clamping member and the second clamping member are rotatably connected, and a clamping space for clamping an object is defined therebetween. The elastic member is used to apply an elastic force to the first clamping member and / or the second clamping member so that the first clamping member and the second clamping member clamp the object under the action of the elastic force; A connection assembly connecting the ball head and the clamping assembly.

2. The support device according to claim 1, characterized in that, The connection assembly includes a connection head. The first clamping member is located on the side of the second clamping member close to the support assembly. The first clamping member is provided with a mounting groove, and at least a part of the connection head is received in the mounting groove and fixed in the mounting groove.

3. The support device according to claim 2, characterized in that, The inner wall of the mounting groove is provided with internal threads, and the outer periphery of the connection head is provided with external threads. The connection head is threadedly connected to the mounting groove.

4. The support device according to claim 3, characterized in that, The ball head is provided with a driving cooperation structure for cooperating with a force-applying tool to drive the ball head assembly to rotate, so that the connection head rotates in the mounting groove and realizes threaded connection.

5. The support device according to claim 4, characterized in that, The seat body assembly is provided with a first opening located on the side of the seat body assembly away from the support assembly. A part of the ball head passes through the first opening, or a structure connected to the ball head passes through the first opening. The driving cooperation structure is a driving groove recessed into the interior of the ball head, and the cross-sectional shape of the driving groove is non-circular.

6. The support device according to claim 4, characterized in that, The seat body assembly is provided with a first opening located on the side of the seat body assembly away from the support assembly. A part of the ball head passes through the first opening, or a structure connected to the ball head passes through the first opening. The driving cooperation structure is a convex column protruding from the surface of the ball head, and the cross-sectional shape of the convex column is non-circular.

7. The support device according to claim 2, characterized in that, The support device includes a connecting member, One end of the mounting groove close to the second clamping member is a closed end. The connecting member passes through the closed end from the side of the first clamping member facing the second clamping member and is fastened to the connection head; or, The connecting member passes through the side wall of the mounting groove from the lateral side of the first clamping member and abuts against or passes through the outer peripheral surface of the connection head.

8. The support device according to claim 2, characterized in that, The connection assembly includes an interface rod. The clamping assembly is provided with an interface. A part of the interface rod is inserted into the interface. The support device includes a locking member. The locking member passes through the side wall of the interface and abuts against the outer peripheral surface of the interface rod for fixing the interface rod in the interface.

9. The support device according to claim 1, characterized in that, The connection assembly is an integral member.

10. The support device according to claim 1, characterized in that, The connection assembly and the ball head are integral members.

11. The support device according to any one of claims 1 - 10, characterized in that, The seat body assembly includes a seat body and a pressing block. One side of the seat body away from the support assembly has a first opening, and one side facing the support assembly has a second opening. A part of the ball head passes through the first opening, or a structure connected to the ball head passes through the first opening. The pressing block is inserted into the seat body from the second opening, and the support assembly covers the second opening.

12. The support device according to claim 11, characterized in that, The ball joint assembly further includes an elastic structure. When the operating assembly is in the unlocked position, the elastic structure applies an elastic force towards the ball head to the pressing block, so that the pressing block holds the ball head against the seat body under the action of the elastic force.

13. The support device according to claim 11, characterized in that, The ball joint assembly includes a first connecting member. One end of the first connecting member passes through the pressing block and is fixed to the seat body, and the pressing block can move along the length direction of the first connecting member.

14. The support device according to claim 13, characterized in that, The first connecting member includes a limiting portion and a rod portion. The pressing block has a first connecting hole, and the seat body has a second connecting hole. One end of the second connecting hole is closed. The rod portion sequentially passes through the first connecting hole and the second connecting hole and is fixed in the second connecting hole. The limiting portion is located on the side of the pressing block facing the support assembly. A groove is provided on the side of the support assembly facing the ball joint assembly, and the limiting portion is received in the groove.

15. The support device according to claim 14, characterized in that, The ball joint assembly further includes an elastic structure. The elastic structure is clamped between the pressing block and the limiting portion and is in a compressed state, and is used to apply an elastic force towards the ball head to the pressing block.

16. The support device according to claim 11, wherein, The operating assembly includes a driving portion, an operating portion, and a connecting rod. The driving portion and the operating portion are arranged at opposite ends of the connecting rod. The driving portion is arranged between the support assembly and the pressing block. The operating portion drives the driving portion to rotate around a first axis or move linearly along the first axis through the connecting rod. The driving portion and the pressing block cooperate to convert the movement of the driving portion into the movement of the pressing block towards the side where the ball head is located. Wherein, the first axis intersects with the movement direction of the pressing block.

17. The support device according to claim 16, wherein, The operating assembly can rotate around its own axis. The driving portion includes an eccentric wheel. The axis of the eccentric wheel is parallel and offset from the axis of the connecting rod. The operating assembly is used to drive the eccentric wheel to rotate when rotating, so that the eccentric wheel presses or releases the pressing block, thereby realizing the switching between the locked position and the unlocked position. Alternatively, the driving portion includes a cam. The operating assembly is used to drive the cam to rotate when rotating, so that the cam presses or releases the pressing block, thereby realizing the switching between the locked position and the unlocked position.

18. The support device according to claim 16, wherein, The pressing block has a first wedge surface, and the driving portion has a second wedge surface. The first wedge surface and the second wedge surface are in contact with each other and can slide relative to each other. The operating assembly is used to adjust the holding depth of the driving portion in the installation space when moving, thereby realizing the switching between the locked position and the unlocked position.

19. The support device according to claim 18, wherein, The operating component is capable of linear motion in a first direction. The supporting device further includes an elastic member, which is used to apply a force in the first direction and towards the side where the ball joint assembly is located to hold the operating component in the locked position. The operating component can linearly move in the first direction and away from the side where the ball joint assembly is located under the action of an external force to switch from the locked position to the unlocked position.

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