Medical supporting device and turning mechanism applied to operating bed

Abstract

According to the folding mechanism of the medical supporting device applied to the operating bed, a second supporting piece of the folding mechanism can be folded relative to a first supporting piece and can be positioned at a set folding angle, so that the folding angle of the second supporting piece relative to the first supporting piece can be adjusted according to the arm posture of a patient, and the arm of the patient can be better supported. The folding mechanism further comprises an unlocking assembly. The unlocking assembly comprises an unlocking wire body and an unlocking piece for an operator to apply unlocking force. The two ends of the unlocking line body are connected with the first locking piece and the unlocking piece correspondingly, so that when an operator applies unlocking force, the first locking piece is driven to be unlocked. Wherein the first supporting piece and / or the second supporting piece are / is provided with a tensioning structure, the tensioning structure abuts against the unlocking line body, so that the unlocking line body is kept in a tensioning state, it is guaranteed that unlocking force applied by an operator can be transmitted to the first locking piece in time, and the unlocking reaction is faster and more accurate.

Description

Technical Field

[0001] The present application relates to the field of medical devices, and particularly to a folding mechanism of a medical support device applied to an operating table. Background Art

[0002] A medical support device (such as a hand support plate) is one of the accessories with a relatively high usage frequency in the accessories of an operating table, and is used to support the patient's arm during the operation. The main body of the common plate for hanging the hand support plate needs to rotate 180° horizontally and be locked relative to the joint. However, in actual clinical scenarios, considering the different postures of the patient, a certain angle of upward folding of the arm is more ergonomic, and a simple flat arm support device can no longer meet the clinical needs. Summary of the Invention

[0003] The present application provides a folding mechanism of a medical support device applied to an operating table to show a structure that can adapt to more arm postures of patients.

[0004] Based on one of the above purposes, in an embodiment of the present application, a folding mechanism of a medical support device is provided, including:

[0005] A first support member;

[0006] A first locking member, which is arranged on the first support member and is used to lock the first support member and the corresponding joint assembly to prevent relative movement between the first support member and the joint assembly;

[0007] A second support member, which is installed on the first support member in a manner that can rotate relative to the first support member and can be positioned at a set rotation angle, and the first support member and the second support member are used to support the patient's body part;

[0008] And an unlocking assembly, which includes an unlocking wire body and an unlocking member for the operator to apply an unlocking force. The unlocking member is arranged on the second support member, and both ends of the unlocking wire body are respectively connected to the first locking member and the unlocking member, so as to drive the first locking member to unlock when the operator applies an unlocking force;

[0009] Wherein, a tensioning structure is arranged on the first support member and / or the second support member, and the tensioning structure abuts against the unlocking wire body to keep the unlocking wire body in a tensioned state; at least the part of the unlocking wire body that abuts against the tensioning structure is a bendable part, and the bendable part can be bent as the second support member rotates relative to the first support member.

[0010] In one embodiment, the tensioning structure is an adaptive tensioning structure. When the second support member is folded relative to the first support member, the adaptive tensioning structure can adaptively adjust the tension force of the unlocking wire body to prevent the unlocking wire body from accidentally unlocking the first locking member.

[0011] In one embodiment, the adaptive tensioning structure includes a tensioning wheel and a tensioning elastic member. The tensioning elastic member forms a floating support for the tensioning wheel, and the elastic force of the tensioning elastic member drives the tensioning wheel to press against the bendable portion, so that the unlocking wire body is kept in a tensioned state; when the second support member is folded relative to the first support member, the unlocking wire body and the tensioning wheel can adaptively adjust their positions to adjust the tension force of the tensioning wheel on the unlocking wire body.

[0012] In one embodiment, the bendable portion is arranged below the tensioning wheel, and the tensioning wheel presses downward against the bendable portion; the adaptive tensioning structure has an adjustment space for the tensioning wheel to adjust up and down; when the second support member is folded relative to the first support member, the unlocking wire body can drive the tensioning wheel to adaptively adjust its position in the adjustment space to adjust the tension force of the tensioning wheel on the unlocking wire body.

[0013] In one embodiment, the adaptive tensioning structure includes a base, the base is installed on the first support member or the second support member, the base has the adjustment space, and the tensioning wheel is movably installed in the adjustment space.

[0014] In one embodiment, the base has a pair of oppositely arranged protrusions, each protrusion has the adjustment space, the tensioning wheel is located between the pair of protrusions, and the two end heads of the tensioning wheel are respectively inserted into the corresponding adjustment spaces. The adjustment space is larger than the corresponding end heads on the tensioning wheel, so that the tensioning wheel can adjust its position on the base.

[0015] In one embodiment, the adjustment space has a pair of vertically guiding portions arranged oppositely to limit the tensioning wheel to adjust its position in the adjustment space in the up and down direction.

[0016] In one embodiment, the vertically guiding portion includes a top wall, a bottom wall and a pair of side walls. The pair of side walls define the lateral dimension of the adjustment space, and the top wall and the bottom wall define the vertical dimension of the adjustment space. The lateral dimension of the adjustment space is substantially the same as the lateral dimension of the corresponding end heads of the tensioning wheel, and the vertical dimension of the adjustment space is larger than the vertical dimension of the corresponding end heads of the tensioning wheel to limit the tensioning wheel to adjust its position in the adjustment space in the vertical up and down direction.

[0017] In one embodiment, fixing members are respectively provided at both ends of the tensioning wheel. The fixing members pass downward from within the adjustment space to the outside of the protrusion. A tensioning elastic member is provided between one end of the fixing member located outside the protrusion and the protrusion. The elastic force of the tensioning elastic member drives the tensioning wheel to move downward to abut against the bendable portion.

[0018] In one embodiment, a tensioning elastic member is provided between the upper side of the end of the tensioning wheel and the cavity wall of the adjustment space. The elastic force of the tensioning elastic member drives the tensioning wheel downward to abut against the bendable portion.

[0019] In one embodiment, the adaptive tensioning structure includes a tensioning wheel. The bendable portion is disposed below the tensioning wheel. The tensioning wheel abuts downward against the bendable portion to keep the unlocking wire body in a tensioned state. The adaptive tensioning structure has an adjustment space for the up-and-down adjustment of the tensioning wheel. When the second support member rotates relative to the first support member, the unlocking wire body can drive the tensioning wheel to adaptively adjust its position in the adjustment space to adjust the tensioning force of the tensioning wheel on the unlocking wire body.

[0020] In one embodiment, the adaptive tensioning structure includes a base. The base has a pair of protrusions disposed opposite to each other. Each protrusion has the adjustment space. The tensioning wheel is located between the pair of protrusions. Both ends of the tensioning wheel are respectively inserted into the corresponding adjustment spaces. The adjustment space is larger than the corresponding end of the tensioning wheel so that the tensioning wheel can adjust its position on the base.

[0021] In one embodiment, the adaptive tensioning structure includes a tensioning wheel. The bendable portion is disposed below the tensioning wheel. The tensioning wheel abuts downward against the bendable portion to keep the unlocking wire body in a tensioned state. At least part of the tensioning wheel and / or the bendable portion is made of an elastic material. When the second support member rotates relative to the first support member, the unlocking wire body and / or the tensioning wheel deforms to adjust the tensioning force of the tensioning wheel on the unlocking wire body.

[0022] In one embodiment, the portion of the tensioning wheel in contact with the bendable portion is a contact area. The shape of the contact area is smoothly transitioned along the extension direction of the unlocking wire body.

[0023] In one embodiment, the adaptive tensioning structure includes a tensioning wheel, the bendable portion is disposed below the tensioning wheel, and the tensioning wheel presses downward against the bendable portion to keep the unlocking wire body in a tensioned state; when there is no folding between the second support member and the first support member, with the portion of the unlocking wire body in contact with the tensioning wheel as the boundary, the end of the unlocking wire body for connecting the unlocking member is a folding section, and the portion of the tensioning wheel corresponding to the folding section forms an avoidance area; when the second support member rotates relative to the first support member, the unlocking wire body can move toward the avoidance area to adjust the tensioning force of the tensioning wheel on the unlocking wire body.

[0024] In one embodiment, when there is no folding between the second support member and the first support member, a gap serving as the avoidance area is formed between the tensioning wheel and the folding section.

[0025] In one embodiment, when there is no folding between the second support member and the first support member, the portion of the tensioning wheel corresponding to the folding section has an inclined surface that slopes obliquely upward from bottom to top, and a gap serving as the avoidance area is formed between the inclined surface and the folding section.

[0026] In one embodiment, the manner of being able to rotate relative to the first support member and be positioned at a set rotation angle includes at least one of a damping shaft structure, an elastic member hovering mechanism, a gas spring hovering mechanism, and a snap rotation positioning structure.

[0027] In one embodiment, the adaptive tensioning structure includes a base and a connecting member, the connecting member is connected to the base in a swingable or rotatable manner, and the tensioning wheel is mounted on the connecting member.

[0028] In one embodiment, the connecting member has an intermediate portion connected to the tensioning wheel, an end portion rotatably connected to the base, and a transition portion connecting the intermediate portion and the end portion. The intermediate portion and the end portion are not on the same straight line. The tensioning wheel is disposed on the intermediate portion 1, and the tensioning elastic member is disposed between the base and the connecting member. The tensioning elastic member is used to drive the connecting member and the tensioning wheel to abut against the unlocking wire body to tension it.

[0029] In one embodiment, at least one second locking member is connected to the first support member, and at least one third locking member is connected to the second support member. The second locking member and the third locking member have a locked state and an unlocked state. In the locked state, the second locking member and the third locking member are locked to each other to lock the first support member and the second support member at a set folding angle; in the unlocked state, the second locking member and the third locking member are unlocked from each other so that the second support member can be folded relative to the first support member; the unlocking wire body is provided with a hovering control member, and the hovering control member moves along with the unlocking wire body. Wherein, the locked state and the unlocked state of the second locking member and the third locking member are associated with the movement of the hovering control member, so that the operator can control the second locking member and the third locking member to be in the locked state and / or the unlocked state through the unlocking member.

[0030] In one embodiment, the movement of the hovering control member and the unlocking wire body includes a first-direction movement and a second-direction movement. In the first-direction movement, the unlocking wire body drives the first locking member to be unlocked; in the second-direction movement, the first locking member returns to the locked state. Wherein, the first-direction movement of the hovering control member is associated with the unlocked state of the second locking member and the third locking member, and the second-direction movement of the hovering control member is associated with the locked state of the second locking member and the third locking member.

[0031] In one embodiment, a hovering unlocking elastic member is further included. The second locking member and the third locking member are kept in the unlocked state under the action of the hovering unlocking elastic member. In the first-direction movement, the hovering control member releases the second locking member and / or the third locking member, so that the second locking member and the third locking member are reset to the unlocked state under the action of the hovering unlocking elastic member; in the second-direction movement, the hovering control member drives the second locking member or the third locking member to overcome the elastic force of the hovering unlocking elastic member and change to the locked state.

[0032] In one embodiment, the third locking member is movably arranged on the first support member, the third locking member is connected to the second support member through a connecting rod, and two ends of the connecting rod are respectively rotatably connected to the third locking member and the second support member; the second locking member is movably arranged on the first support member.

[0033] In one embodiment, there are at least a pair of the second locking members, and the elastic force of the hovering unlocking elastic member drives the pair of the second locking members to approach each other; there are at least a pair of the third locking members, and the third locking members are respectively arranged on two sides of the pair of the second locking members, and the hovering control member is located between the pair of the second locking members. During the movement in the first direction, the hovering control member releases the second locking members, and the second locking members reset to the unlocked state; during the movement in the second direction, the hovering control member drives the second locking members to move towards the third locking members, so that the second locking members and the third locking members are changed to the locked state.

[0034] In one embodiment, the hovering control member has a wedge-shaped surface, and the second locking members located on two sides of the hovering control member cooperate with the wedge-shaped surface, so that the movement of the hovering control member in the second direction can push the second locking members to approach the third locking members.

[0035] In one embodiment, the first support member has a first limiting portion, and the second locking member cooperates with the first limiting portion and is restricted to move closer to and away from the third locking member; the first support member has a second limiting portion arranged along the extending direction of the unlocking wire body, and the third locking member cooperates with the second limiting portion and is restricted to move along the extending direction of the unlocking wire body.

[0036] In one embodiment, the first support member and the second support member are provided with wire body grooves, and the unlocking wire body is buried in the wire body grooves; the second support member has an unlocking space, the unlocking member is arranged at the unlocking space, the wire body grooves communicate with the unlocking space, and the unlocking wire body extends into the unlocking space and is connected to the unlocking member.

[0037] Based on one of the above purposes, in one embodiment of the present application, a medical support device applied to an operating table is provided, including:

[0038] A joint assembly for docking the medical support device with other support structures;

[0039] And a folding mechanism as described in any one of the above;

[0040] Wherein, the first support member is installed on the joint assembly in a manner that can move relative to the joint assembly, so that the folding mechanism can move relative to the joint assembly; the first locking member can lock with the joint assembly to prevent the folding mechanism from moving relative to the joint assembly.

[0041] In one embodiment, the first support member is mounted on the joint assembly in a manner that it can rotate about a first axis; the second support member is mounted on the first support member in a manner that it can rotate about a second axis; the first axis is perpendicular to the horizontal plane, and the second axis is not coplanar with the first axis.

[0042] In one embodiment, it further includes a cushion body which is fixedly laid on the first support member and the second support member.

[0043] According to the folding mechanism of the above embodiment, its first support member and second support member are used to support the patient's arm, and the second support member can rotate relative to the first support member and can be positioned at a set rotation angle. In this way, the rotation angle of the second support member relative to the first support member can be adjusted according to the patient's arm posture to better support the patient's arm.

[0044] In addition, the folding mechanism has a first locking member for locking the first support member and the corresponding joint assembly to prevent relative movement between the first support member and the corresponding joint assembly. In order to be able to unlock the first locking member conveniently, the folding mechanism further includes an unlocking assembly. The unlocking assembly includes an unlocking wire body and an unlocking member for the operator to apply an unlocking force. Both ends of the unlocking wire body are respectively connected to the first locking member and the unlocking member to drive the first locking member to unlock when the operator applies an unlocking force. Wherein, a tensioning structure is provided on the first support member and / or the second support member, and the tensioning structure abuts against the unlocking wire body to keep the unlocking wire body in a tensioned state, so as to ensure that the unlocking force applied by the operator can be transmitted to the first locking member in time, making the unlocking reaction faster and more accurate. At least the part of the unlocking wire body that abuts against the tensioning structure is a bendable part, and the bendable part can bend as the second support member rotates relative to the first support member, so that even when the second support member is at a rotation angle, the unlocking operation can be carried out smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 It is a schematic structural diagram of a medical support device in a non-folding state according to an embodiment of the present application;

[0046] Figure 2 It is a schematic structural diagram of the back of a medical support device in a non-folding state according to an embodiment of the present application;

[0047] Figure 3 It is a schematic structural diagram of a medical support device in a folding state according to an embodiment of the present application;

[0048] Figure 4 It is a schematic structural diagram of the back of a medical support device in a folding state according to an embodiment of the present application;

[0049] Figure 5Exploded view of a medical support device in an embodiment of the present application;

[0050] Figure 6 Schematic structural diagram of the connection structure and the tensioning structure between the first support member and the second support member in an embodiment of the present application;

[0051] Figure 7 Exploded view of the connection structure and the tensioning structure between the first support member and the second support member in an embodiment of the present application;

[0052] Figure 8 Schematic structural diagram of the tensioning structure in an embodiment of the present application;

[0053] Figure 9 Longitudinal sectional view of a medical support device in an embodiment of the present application;

[0054] Figure 10 is Figure 9 Enlarged view of part A in;

[0055] Figure 11 Schematic diagram of the position of the unlocking wire body during folding with and without a tensioning structure in an embodiment of the present application;

[0056] Figures 12 - 14 Schematic structural diagram of the tensioning structure in some other embodiments of the present application;

[0057] Figure 15 Schematic diagram of the position of the unlocking wire body during folding when there is an avoidance area in an embodiment of the present application;

[0058] Figure 16 Schematic structural diagram of the second locking member and the third locking member in the unlocked state when the medical support device is in the non-folded state in an embodiment of the present application;

[0059] Figure 17 is Figure 16 Enlarged view of the structure between the second locking member and the third locking member in;

[0060] Figure 18 Schematic structural diagram of the second locking member and the third locking member in the unlocked state when the medical support device is in the folded state in an embodiment of the present application;

[0061] Figure 19 is Figure 18 Enlarged view of the structure between the second locking member and the third locking member in;

[0062] Figure 20 and 21 Schematic structural diagrams of the tensioning structure from different perspectives in an embodiment of the present application. Detailed implementation manners

[0063] The present invention will be further described in detail below in conjunction with the accompanying drawings through specific embodiments. Similar elements in different embodiments are denoted by related similar element numbers. In the following embodiments, many detailed descriptions are provided to enable a better understanding of the present application. However, those skilled in the art can easily recognize that some of the features can be omitted in different situations, or can be replaced by other elements, materials, or methods. In some cases, some operations related to the present application are not shown or described in the specification, which is to avoid the core part of the present application being overwhelmed by excessive descriptions. For those skilled in the art, it is not necessary to describe these related operations in detail, and they can fully understand the related operations based on the descriptions in the specification and the general technical knowledge in the art.

[0064] In addition, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various embodiments. At the same time, the steps or actions in the method description can also be reordered or adjusted in a manner obvious to those skilled in the art. Therefore, the various sequences in the specification and the drawings are only for clearly describing a certain embodiment and do not mean that they are the necessary sequences, unless it is stated that a certain sequence must be followed.

[0065] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the described objects and do not have any sequential or technical meaning. The "connection" and "coupling" mentioned in the present application, unless otherwise specified, both include direct and indirect connection (coupling).

[0066] During the surgical process, the patient will assume various different body positions. To meet the patient's more support needs during the surgical process, some embodiments of the present application provide a medical support device. The medical support device can be used on a main device, such as an operating table or other surgical platforms, to support the patient's arm or other parts.

[0067] Please refer to Figures 1 - 4 and Figures 16 - 19, in some embodiments, the medical support device 1 includes a folding mechanism 11, which can serve as the support body of the medical support device 1 and play a role in supporting the patient's arm or other parts. The folding mechanism 11 has a non-folding state and a folding state. In the non-folding state, the folding mechanism 11 is substantially planar and can be used for the patient's arm to lie flat. In the folding state, one end of the folding mechanism 11 can be folded to form a set folding angle relative to the other end, so that one end of the folding mechanism 11 forms a certain slope, so that when the patient's arm is in a bent state, the patient's arm can also be supported. For example, one end of the folding mechanism 11 can be folded upward by a certain angle relative to the other end. The folding angle of the folding mechanism 11 can be one or more fixed angles, or any angle within the set folding angle range. Please refer to Figure 1 and 16 , in these embodiments, at this time the folding mechanism 11 is in the non-folding state. Please refer to Figure 3 and 18 , in these embodiments, at this time the folding mechanism 11 is in the folding state.

[0068] To realize the folding function of the folding mechanism 11, please refer to Figures 2 - 7 and Figures 16 - 19 , in some embodiments, the folding mechanism 11 includes a first support member 111, a second support member 112, a first locking member 113 and an unlocking assembly.

[0069] The first support member 111 and the second support member 112 are used to support the patient's arm. The second support member 112 is mounted on the first support member 111 in a manner that can be folded relative to the first support member 111 and can be positioned at a set folding angle. Among them, the manner of being able to be folded relative to the first support member 111 can be achieved by rotational connection. For example, please refer to Figure 6 and 7 , in some embodiments, the first support member 111 and the second support member 112 are connected by a rotating assembly 115 to achieve rotation. The rotating assembly 115 may include a first mounting seat 1151 mounted on the first support member 111, a second mounting seat 1152 mounted on the second support member 112, and a rotating shaft 1153 connecting the first mounting seat 1151 and the second mounting seat 1152. Of course, in addition to this, the first support member 111 and the second support member 112 can also be rotationally connected through other structures.

[0070] The manner of being able to be positioned at a set folding angle can adopt but is not limited to at least one of a damping shaft structure, an elastic member hovering mechanism, a torsion spring hovering structure, a gas spring hovering mechanism, and a snap rotation positioning structure, etc. For example, please refer to Figure 6 and 7, in some embodiments, the rotating shaft 1153 is a damping shaft, and a structure for increasing damping can be provided between the rotating shaft 1153 and the corresponding first mounting seat 1151 and second mounting seat 1152 respectively. For example, in the Figure 6 and 7 shown embodiment, the rotating shaft 1153 is a one - character damping rotating shaft. In other embodiments, the damping - increasing structure can also be a friction sleeve or other forms of structures provided on the first mounting seat 1151 and the second mounting seat 1152.

[0071] The set folding angle can be one or more independent angles, and the second support member 112 can change its position between these angles. In addition, the set folding angle can also be continuous angles. For example, when the first support member 111 and the second support member 112 adopt a damping - shaft structure to achieve folding, it can hover at any angle within the foldable range, which is more convenient and flexible in use, and can also meet the support requirements of more patient postures.

[0072] Therefore, in the above - mentioned embodiments, the second support member 112 can be folded relative to the first support member 111 and can be positioned at the set folding angle, so that the folding angle of the second support member 112 relative to the first support member 111 can be adjusted according to the patient's arm posture to better support the patient's arm.

[0073] Please refer to Figure 5 、 7 、13 and 18. In some embodiments, the first locking member 113 is provided on the first support member 111, and it is used to lock the first support member 111 and the corresponding joint assembly 12 to prevent relative movement between the first support member 111 and the joint assembly 12. The joint assembly 12 is a structure for connecting the folding mechanism 11 to the main body device, and the main body device can be, for example, but not limited to, an operating table or other patient support platforms. The first support member 111 or the entire folding mechanism 11 is movably connected to the joint assembly 12 to achieve relative movement, and the relative movement includes, but is not limited to, rotation around one or more directions, linear movement along one or more directions, and the combination of both. Through this movable connection, the first support member 111 or the entire folding mechanism 11 can be changed relative to the operating table or other patient support platforms to meet the support requirements of more patients.

[0074] For example, please refer to Figure 5 and Figure 9, in some embodiments, the first support member 111 is rotatably connected to the joint assembly 12, so that the first support member 111 or the entire folding mechanism 11 can rotate relative to the joint assembly 12 and the main device. Usually, the rotation axis of the first support member 111 or the entire folding mechanism 11 relative to the joint assembly 12 is vertically arranged. In other embodiments, the rotation axis can also be set in other directions relative to the rotation axis of the joint assembly 12 according to the support requirements.

[0075] The joint assembly 12 and the main device can be connected through various existing connection structures. For example, please refer to Figure 3 , in some embodiments, the joint assembly 12 has a clamping structure 121, and the joint assembly 12 can be clamped on the main device (such as an operating table) through the clamping structure 121. In addition, the connection structure of the joint assembly 12 can also be in the forms of screw connection, snap connection, fixing by a fixing member (such as screw fixing), riveting, and welding, etc.

[0076] The function of the first locking member 113 is to lock and unlock between the first support member 111 and the corresponding joint assembly 12. When the first support member 111 is locked with the corresponding joint assembly 12, the relative movement between the first support member 111 and the joint assembly 12 will be blocked. Therefore, the first support member 111 or the entire folding mechanism 11 can be positioned relative to the joint assembly 12 at a fixed position to prevent the first support member 111 or the entire folding mechanism 11 from making unwanted movements that may affect the support of the patient. When the first support member 111 is unlocked from the corresponding joint assembly 12, the movable connection between the first support member 111 and the joint assembly 12 will be released. Therefore, the first support member 111 or the entire folding mechanism 11 can move relative to the joint assembly 12 to adjust the position of the first support member 111 or the entire folding mechanism 11 relative to the joint assembly 12. Among them, the locking method of the first locking member 113 for the joint assembly 12 can include but is not limited to locking through a damping force, locking through a clamping block, or locking through magnetic attraction fixation, etc.

[0077] The first locking member 113 can automatically maintain the locked state under the elastic restoring force. Please refer to Figure 7 and 9 , in some embodiments, the first locking member 113 is configured with a locking elastic member 1131 to drive the first locking member 113 to maintain the locked state; or an external force can be applied to the first locking member 113 as the locking force to control the first locking member 113 to lock. This external force can come from a person or a driving unit (such as a motor, a cylinder, a hydraulic cylinder, an electromagnet, etc.). These methods can all be implemented with reference to the prior art.

[0078] In order to unlock the first locking member 113 when needed, please refer to Figure 7 and Figure 9 ,10 In some embodiments, the unlocking assembly includes an unlocking wire body 1141 and an unlocking member 1142 for an operator to apply an unlocking force. The unlocking member 1142 is disposed on the second support member 112. Both ends of the unlocking wire body 1141 are respectively connected to the first locking member 113 and the unlocking member 1142, so as to drive the first locking member 113 to unlock when the operator applies an unlocking force.

[0079] Please refer to Figure 2 、 4 and 7. In some embodiments, the unlocking member 1142 is an unlocking handle, which is connected to the unlocking wire body 1141. The operator can pull the unlocking wire body 1141 to move towards the unlocking handle side through the unlocking handle, thereby driving the first locking member 113 and the joint assembly 12 to switch to the unlocking state. Of course, in other embodiments, the unlocking member 1142 can also have other structures, such as a crank, a push rod, a knob, etc. The operation of the unlocking member 1142 driving the unlocking wire body 1141 can also be pushing or other methods, as long as it can drive the unlocking wire body 1141 to unlock the first locking member 113.

[0080] The unlocking wire body 1141 is a linear structure. In order to ensure that the unlocking wire body 1141 can be bent along with the second support member 112, please refer to Figure 10 In some embodiments, the linear structure has a bendable portion 1141a. When the second support member 112 rotates relative to the first support member 111, the bendable portion 1141a can be bent along with the rotation angle, so that even when the second support member 112 is at a rotation angle, the unlocking operation can be smoothly carried out. Among them, the unlocking wire body 1141 can be an integrally deformable wire body, or a combined wire body formed by the combination of a rigid wire body and a flexible wire body. For example, in some embodiments, the integrally deformable wire body can be, but is not limited to, a steel wire rope, a brake wire, a chain or a deformable plastic wire body, etc. In some embodiments, the bendable portion 1141a of the combined wire body can adopt a deformable wire body structure, such as adopting, but not limited to, the aforementioned steel wire rope, brake wire, chain or deformable plastic wire body, etc., and the portion of the combined wire body outside the bendable portion 1141a (such as the portions located on the first support member 111 and the second support member 112) can adopt a rigid wire body structure, such as adopting, but not limited to, a metal or hard plastic wire body structure.

[0081] Furthermore, due to the existence of the bendable portion 1141a and assembly and processing errors, the unlocking wire body 1141 may not be straightened, resulting in the unlocking force applied by the operator to the unlocking member 1142 not being transmitted to the first locking member 113 in time and unable to control the first locking member 113 to unlock. Therefore, please refer to Figure 6 and 10, in some embodiments, a tensioning structure 116 is provided on the first support member 111 and / or the second support member 112. The tensioning structure 116 abuts against the unlocking wire body 1141 to keep the unlocking wire body 1141 in a tensioned state, so as to ensure that the unlocking force applied by the operator can be timely transmitted to the first locking member 113, making the unlocking reaction faster and more accurate. At least the portion of the unlocking wire body 1141 that abuts against the tensioning structure 116 is the bendable portion 1141a described above.

[0082] The tensioning structure 116 applies a tensioning force to the bendable portion 1141a in a direct or indirect abutting manner to ensure that the bendable portion 1141a is in a tensioned state. Please refer to Figure 10 , in some embodiments, the tensioning structure 116 is located above the bendable portion 1141a and abuts downward against the bendable portion 1141a. In other embodiments, the tensioning structure 116 can also apply a tensioning force to the bendable portion 1141a in other ways.

[0083] Further, please refer to Figure 11 , in some embodiments, Figure 11 As shown by line B in, it is a schematic diagram of the change of the unlocking wire body 1141 after bending. When the tensioning structure 116 remains stationary, the bendable portion 1141a will have a tendency to deform in length along its axis under the pulling of the first support member 111 and the second support member 112 and the pressing of the tensioning structure 116, that is, it will bear a certain pulling stress. If this pulling stress is too large, it will be transmitted to the first locking member 113, and then cause the first unlocking member 1142 to be unlocked by mistake.

[0084] To solve this problem, in some embodiments, the tensioning structure 116 is an adaptive tensioning structure. When the second support member 112 rotates relative to the first support member 111, the adaptive tensioning structure can adaptively adjust the tensioning force of the unlocking wire body 1141 to avoid the unlocking wire body 1141 being unlocked by mistake when rotating. The adaptive tensioning structure is a structure that can automatically adjust the position of the bendable portion 1141a according to the force when the bendable portion 1141a bends, so that the bendable portion 1141a will have a position change as shown by line C in Figure 11 when bending, reducing its pulling stress.

[0085] The adaptive tensioning structure can adopt various structures that can achieve the above purposes. The following takes several specific embodiments as examples, but the adaptive tensioning structure is not limited to these specific embodiments.

[0086] Please refer to Figures 8 - 10, in some embodiments, the adaptive tensioning structure includes a tensioning wheel 1161 and a tensioning elastic member 1162. The tensioning elastic member 1162 forms a floating support for the tensioning wheel 1161, and the elastic force of the tensioning elastic member 1162 drives the tensioning wheel 1161 to press against the bendable portion 1141a, so that the unlocking wire body 1141 is kept in a tensioned state; when the second support member 112 rotates relative to the first support member 111, the unlocking wire body 1141 and the tensioning wheel 1161 can adaptively adjust their positions to adjust the tensioning force of the tensioning wheel 1161 on the unlocking wire body 1141. Wherein, the tensioning elastic member 1162 can act directly or indirectly on the tensioning wheel 1161, so that it presses against the bendable portion 1141a.

[0087] Please refer to Figure 11 , such as Figure 11 shown by line C in, when the tensioning wheel 1161 and the tensioning elastic member 1162 are adopted, when the unlocking wire body 1141 is bent, it can drive the tensioning wheel 1161 to overcome part of the elastic force of the tensioning elastic member 1162, so that the tensioning wheel 1161 moves upward, thereby reducing the pressing force of the tensioning wheel 1161 on the unlocking wire body 1141 and reducing its pulling stress.

[0088] Please refer to Figure 8 and 10 , in some embodiments, the bendable portion 1141a is arranged below the tensioning wheel 1161, and the tensioning wheel 1161 presses downward against the bendable portion 1141a. The adaptive tensioning structure has an adjustment space 1163 for the tensioning wheel 1161 to adjust up and down. When the second support member 112 rotates relative to the first support member 111, the unlocking wire body 1141 can drive the tensioning wheel 1161 to adaptively adjust its position in the adjustment space 1163 to adjust the tensioning force of the tensioning wheel 1161 on the unlocking wire body 1141. The adjustment space 1163 is mainly the moving space of the tensioning wheel 1161, and any feasible solution can be selected without conflict.

[0089] Please refer to Figure 8 and 10 , in some embodiments, the adaptive tensioning structure includes a base 1164, and the base 1164 is installed on the first support member 111 or the second support member 112. The base 1164 has the above-mentioned adjustment space 1163, and the tensioning wheel 1161 is movably installed in the adjustment space 1163, so that when the unlocking wire body 1141 is bent and pushes against the tensioning wheel 1161, the tensioning wheel 1161 can move into the adjustment space 1163.

[0090] Further, please refer to Figure 8 and 10, in some embodiments, the base 1164 has a pair of protrusions 1165 disposed opposite to each other, and each protrusion 1165 has an adjustment space 1163. The tensioning wheel 1161 is located between the pair of protrusions 1165, and the two end heads 1161a of the tensioning wheel 1161 are respectively inserted into the corresponding adjustment spaces 1163. The adjustment space 1163 is larger than the corresponding end head 1161a on the tensioning wheel 1161, so that the tensioning wheel 1161 can adjust its position on the base 1164. Of course, in some other embodiments, the protrusion 1165 can also be one or more. The cooperation structure between the base 1164 and the tensioning wheel 1161 can be other structures in addition to Figures 8 - 10 the structure shown, as long as it can ensure that the tensioning wheel 1161 can move in the adjustment space 1163 of the base 1164.

[0091] Furthermore, in some embodiments, the adjustment space 1163 has a pair of guiding portions disposed opposite to each other to limit the tensioning wheel 1161 to adjust its position in the adjustment space 1163 in a set adjustment direction. The set adjustment direction is the same as the movement trend when the unlocking wire 1141 is bent, so as to ensure that the unlocking wire 1141 can be smoothly and adaptively adjusted. For example, in some embodiments, the guiding portion is a vertical guiding portion, the set adjustment direction is the up and down direction, and the tensioning wheel 1161 is limited to adjust its position in the adjustment space 1163 in the up and down direction.

[0092] Specifically, please refer to Figure 8 , in some embodiments, the vertical guiding portion includes a top wall 1167a, a bottom wall 1167b and a pair of side walls 1167c. The pair of side walls 1167c define the lateral dimension of the adjustment space 1163, and the top wall 1167a and the bottom wall 1167b define the vertical dimension of the adjustment space 1163. The lateral dimension of the adjustment space 1163 is substantially the same as the lateral dimension of the corresponding end head 1161a of the tensioning wheel 1161, so that the tensioning wheel 1161 will not have excessive movement in the lateral direction. At the same time, there is also an appropriate gap between the side wall 1167c and the tensioning wheel 1161 to prevent the side wall 1167c from restricting the up and down movement of the tensioning wheel 1161. The vertical dimension of the adjustment space 1163 is larger than the vertical dimension of the corresponding end head 1161a of the tensioning wheel 1161 to limit the tensioning wheel 1161 to adjust its position in the adjustment space 1163 in the vertical up and down direction. In addition, the vertical guiding portion can also adopt other forms, such as using a guide rail or other structures that can achieve the vertical guiding function to replace the Figure 8 structure shown.

[0093] Furthermore, please refer to Figure 8, in some embodiments, fixing members 1166 are respectively provided at both ends 1161a of the tensioning pulley 1161. The fixing members 1166 pass downward from within the adjustment space 1163 to the outside of the protrusion 1165. A tensioning elastic member 1162 is provided between one end of the fixing member 1166 located outside the protrusion 1165 and the protrusion 1165. The elastic force of the tensioning elastic member 1162 drives the tensioning pulley 1161 to move downward to abut against the bendable portion 1141a. Specifically, the tensioning elastic member 1162 directly acts on the fixing member 1166, and drives the entire tensioning pulley 1161 to move toward the unlocking wire body 1141 through the fixing member 1166. The fixing member 1166 can be a screw or a structure fixed to the tensioning pulley 1161 in other forms. Even in some embodiments, the fixing member 1166 can also be integrally formed with the tensioning pulley 1161.

[0094] The tensioning elastic member 1162 can be, but is not limited to, a compression spring, a tension spring, a spring plate, a disc spring, a torsion spring or other elastic structures. Please refer to Figure 8 and 10 , in some embodiments, the tensioning elastic member 1162 is a spring, which is sleeved on one end of the fixing member 1166 located outside the protrusion 1165.

[0095] Actually, any feasible structure can be adopted for the connection structure between the tensioning pulley 1161 and the tensioning elastic member 1162, as long as it can drive the tensioning pulley 1161 to keep the unlocking wire body 1141 tightened. Please refer to Figure 12 , in some embodiments, a tensioning elastic member 1162 is provided between the upper side of the end 1161a of the tensioning pulley 1161 and the cavity wall of the adjustment space 1163. The elastic force of the tensioning elastic member 1162 drives the tensioning pulley 1161 to move downward to abut against the bendable portion 1141a. In Figure 12 the illustrated embodiment, the tensioning elastic member 1162 can directly act on the end 1161a of the tensioning pulley 1161, or can act on the fixing member 1166 or other structures connected to the tensioning pulley 1161. Of course, in some other embodiments, the fixing member 1166 can also be omitted.

[0096] In addition to realizing the floating support of the tensioning pulley 1161 through the tensioning elastic member 1162, the adaptive adjustment function of the tensioning pulley 1161 can also be realized through other structures.

[0097] Please refer to Figure 13, in some embodiments, the adaptive tensioning structure includes a tensioning wheel 1161, a bendable portion 1141a is disposed below the tensioning wheel 1161, and the tensioning wheel 1161 presses downward against the bendable portion 1141a to keep the unlocking wire body 1141 in a tensioned state. The adaptive tensioning structure has an adjustment space 1163 for the up and down adjustment of the tensioning wheel 1161. When the second support member 112 is folded relative to the first support member 111, the unlocking wire body 1141 can drive the tensioning wheel 1161 to adaptively adjust its position in the adjustment space 1163 to adjust the tensioning force of the tensioning wheel 1161 on the unlocking wire body 1141. In this embodiment, the tensioning wheel 1161 does not rely on a tensioning elastic member 1162, but presses against the bendable portion 1141a by its own gravity or the tensioning force applied by the adaptive tensioning structure to the tensioning wheel 1161 to achieve tensioning.

[0098] In Figure 13 the embodiment shown, the structure and shape of the adjustment space 1163 refer to Figure 8 the embodiment shown. That is, the adaptive tensioning structure includes a base 1164, the base 1164 has a pair of oppositely arranged protrusions 1165, each protrusion 1165 has an adjustment space 1163, the tensioning wheel 1161 is located between the pair of protrusions 1165, and the two end heads 1161a of the tensioning wheel 1161 are respectively inserted into the corresponding adjustment spaces 1163. The adjustment space 1163 is larger than the corresponding end head 1161a on the tensioning wheel 1161 so that the tensioning wheel 1161 can adjust its position on the base 1164. Of course, in some other embodiments, the Figure 13 adjustment space 1163 shown can also be designed into other shapes and structures, not limited to Figure 8 the content described.

[0099] In addition, please refer to Figure 14 , in some other embodiments, the adaptive tensioning structure includes a tensioning wheel 1161, a bendable portion 1141a is disposed below the tensioning wheel 1161, and the tensioning wheel 1161 presses downward against the bendable portion 1141a to keep the unlocking wire body 1141 in a tensioned state. Among them, at least part of the tensioning wheel 1161 and / or the bendable portion 1141a is made of an elastic material. When the second support member 112 is folded relative to the first support member 111, the unlocking wire body 1141 and / or the tensioning wheel 1161 deforms to adjust the tensioning force of the tensioning wheel 1161 on the unlocking wire body 1141. For example, the tensioning wheel 1161 can be made of an elastic material (such as silicone or elastic metal material, etc.). In this embodiment, the tensioning wheel 1161 can be directly fixed on the base 1164 without the need for the base 1164 to provide an adjustment space 1163.

[0100] Please refer to Figure 15, in some other embodiments, the adaptive tensioning structure includes a tensioning wheel 1161, and a bendable portion 1141a is disposed below the tensioning wheel 1161. The tensioning wheel 1161 presses downward against the bendable portion 1141a to keep the unlocking wire body 1141 in a tensioned state. When there is no folding between the second support member 112 and the first support member 111, taking the portion 1168 where the unlocking wire body 1141 contacts the tensioning wheel 1161 as a boundary, one end of the unlocking wire body 1141 for connecting the unlocking member 1142 is a folded section 1141b, and the portion of the tensioning wheel 1161 corresponding to the folded section 1141b forms an avoidance area; when the second support member 112 rotates relative to the first support member 111, the unlocking wire body 1141 can move towards the avoidance area to adjust the tensioning force of the tensioning wheel 1161 on the unlocking wire body 1141.

[0101] This avoidance area can be achieved through the shape or structural design of the tensioning wheel 1161. Please refer to Figure 15 , in some embodiments, when there is no folding between the second support member 112 and the first support member 111, a gap serving as an avoidance area is formed between the tensioning wheel 1161 and the folded section 1141b.

[0102] More specifically, please refer to Figure 15 , in some embodiments, when there is no folding between the second support member 112 and the first support member 111, the portion of the tensioning wheel 1161 corresponding to the folded section 1141b has an inclined surface 1169 that slopes obliquely upward from bottom to top, and a gap serving as an avoidance area is formed between the inclined surface 1169 and the folded section 1141b.

[0103] Furthermore, please refer to Figure 8 、 12 、13 and 14, in some embodiments, the portion of the tensioning wheel 1161 in contact with the bendable portion 1141a is a contact area, and the shape of the contact area has a smooth transition along the extending direction of the unlocking wire body 1141.

[0104] In the above embodiments, the base 1164 has the above-mentioned adjustment space 1163, and the tensioning wheel 1161 is movably installed in the adjustment space 1163. However, the present application is not limited thereto. In addition to the above linear motion mode, the tensioning wheel 1163 can also be connected to the base 1164 in a swingable or rotatable manner through a connecting member. Please refer to Figure 20 and 21, in some embodiments, the connecting member 119 may include an intermediate portion 1191 connected to the tensioning pulley 1163, two end portions 1192 rotatably connected to the base 1164, and a transition portion 1193 connecting the intermediate portion 1191 and the end portions 1192. The intermediate portion 1191 and the two end portions 1192 are not on the same straight line. The tensioning pulley 1161 is disposed on the intermediate portion 1191. A tensioning elastic member is disposed between the base 1164 and the connecting member 119. The tensioning elastic member applies a force to the connecting member 119 to tension the unlocking wire body 1141. When the unlocking wire body 1141 is bent and pushes against the tensioning pulley 1161, the connecting member 119 rotates around its two end portions 1192, as shown by the arrow D in Figure 21 , such that the tensioning pulley 1161 deflects. The tensioning elastic member may be, for example, a torsion spring. This embodiment can achieve the same purpose.

[0105] Please continue to refer to Figure 8 , 12 , 13, and 14. In some embodiments, the tensioning pulley 1161 may include a wheel body 1161b and a support shaft (i.e., the shaft-like portion where the end 1161a is located). The wheel body 1161b is rotatably mounted on the support shaft. The wheel body 1161b can rotate around the support shaft to reduce the friction between the unlocking wire body 1141 and the wheel body 1161b during unlocking and locking. Of course, in some other embodiments, the wheel body 1161b and the support shaft may also be fixedly connected, such as integrally formed or fixed by various fixing means.

[0106] In addition, in some other embodiments of the present application, another structure for enabling the first support member 111 and the second support member 112 to achieve bending and hovering is provided.

[0107] Please refer to Figures 16 - 19 . In some embodiments, at least one second locking member 1171 is connected to the first support member 111, and at least one third locking member 1172 is connected to the second support member 112. The second locking member 1171 and the third locking member 1172 have a locked state and an unlocked state. In the locked state, the second locking member 1171 and the third locking member 1172 are locked to each other to lock the first support member 111 and the second support member 112 in a non-folded state and / or a set folding angle; in the unlocked state, the second locking member 1171 and the third locking member 1172 are unlocked from each other to enable the second support member 112 to fold relative to the first support member 111. Figures 16 - 19 The embodiments shown can be combined with the above-described embodiments, that is, Figures 16 - 19 in the embodiments of Figures 16 - 19 , the solution of the tensioning structure 116 described above can be adopted, or the solution of the unlocking wire body 1141 and the tensioning pulley 1161 adaptively adjusting their positions described above can be adopted; however, the present application is not limited thereto, Figures 16 - 19 the embodiments shown can also be implemented independently.

[0108] The unlocking wire body 1141 is connected with a hovering control member 1173. The hovering control member 1173 moves along with the unlocking wire body 1141. Among them, the locking states and unlocking states of the second locking member 1171 and the third locking member 1172 are associated with the movement of the hovering control member 1173, so that the operator can control the second locking member 1171 and the third locking member 1172 to be in the locking state and / or unlocking state through the unlocking member 1142. The so-called movement association means that the movement of the hovering control member 1173 can be used to lock and / or unlock the second locking member 1171 and the third locking member 1172. In this embodiment, the operator can control the hovering control member 1173 and the first locking member 113 through the unlocking member 1142 to unlock and lock the first support member 111 and the second support member 112 and to unlock and lock the first locking member 113.

[0109] In some embodiments, the movements of the hovering control member 1173 and the unlocking wire body 1141 include a first-direction movement and a second-direction movement. In the first-direction movement, the unlocking wire body 1141 drives the first locking member 113 to be unlocked; in the second-direction movement, the first locking member 113 returns to the locked state. In Figures 16 - 19 the illustrated embodiment, the first direction of the unlocking wire body 1141 is the movement of the unlocking wire body 1141 towards the second support member 112, that is, the movement when pulling the first locking member 113 to be unlocked. The second direction of the unlocking wire body 1141 is the movement of the unlocking wire body 1141 towards the first support member 111, that is, when the first locking member 113 is locked under the action of the locking elastic member 1131 or an external force, it drives the unlocking wire body 1141 to move towards the first support member 111. Among them, the first-direction movement of the hovering control member 1173 is associated with the unlocking states of the second locking member 1171 and the third locking member 1172, that is, when the hovering control member 1173 moves in the first direction, it can be directly or indirectly used to unlock the second locking member 1171 and the third locking member 1172. The second-direction movement of the hovering control member 1173 is associated with the locking states of the second locking member 1171 and the third locking member 1172, that is, when the hovering control member 1173 moves in the second direction, it can be directly or indirectly used to lock the second locking member 1171 and the third locking member 1172. The above-mentioned association can be achieved through structural design, and the structural design can adopt but is not limited to Figures 16 - 19 the illustrated embodiment.

[0110] Further, please refer to Figures 16 - 19, in some embodiments, it further includes a hovering unlocking elastic member 1174. The second locking member 1171 and the third locking member 1172 are kept in an unlocked state under the action of the hovering unlocking elastic member 1174. During the movement in the first direction, the hovering control member 1173 releases the second locking member 1171 and / or the third locking member 1172, so that the second locking member 1171 and the third locking member 1172 are reset to the unlocked state under the action of the hovering unlocking elastic member 1174; during the movement in the second direction, the hovering control member 1173 drives the second locking member 1171 or the third locking member 1172 to overcome the elastic force of the hovering unlocking elastic member 1174 and transform into a locked state. The hovering unlocking elastic member 1174 can act on the second locking member 1171 and / or the third locking member 1172 directly or indirectly in any way as long as the purpose of unlocking with elastic reset protection can be achieved.

[0111] More specifically, please refer to Figures 16 - 19 , in some embodiments, the third locking member 1172 is movably arranged on the first support member 111, the third locking member 1172 is connected to the second support member 112 through a connecting rod 1175, and both ends of the connecting rod 1175 are rotatably connected to the third locking member 1172 and the second support member 112 respectively; the second locking member 1171 is movably arranged on the first support member 111. In the bent locked state, the first support member 111, the second support member 112 and the connecting rod 1175 form a substantially triangular structure, and the second locking member 1171 and the third locking member 1172 keep the triangular structure stable, so that the first support member 111 and the second support member 112 are kept at the current bent angle.

[0112] Furthermore, please refer to Figures 16 - 19 , in some embodiments, there are at least a pair of second locking members 1171. The elastic force of the hovering unlocking elastic member 1174 drives a pair of second locking members 1171 to approach each other, aiming to separate the second locking members 1171 from the third locking members 1172. There are at least a pair of third locking members 1172, and the third locking members 1172 are arranged on both sides of a pair of second locking members 1171, and the hovering control member 1173 is located between a pair of second locking members 1171. During the movement in the first direction, the hovering control member 1173 releases the second locking members 1171, and the second locking members 1171 are reset to the unlocked state; during the movement in the second direction, the hovering control member 1173 drives the second locking members 1171 to move towards the third locking members 1172, so that the second locking members 1171 and the third locking members 1172 transform into the locked state.

[0113] More specifically, please refer to Figure 17, in some embodiments, the hovering control member 1173 has a wedge surface 1173a, and the second locking members 1171 located on both sides of the hovering control member 1173 cooperate with the wedge surface 1173a so that the movement of the hovering control member 1173 in the second direction can push the second locking members 1171 closer to the third locking member 1172. The width of the hovering control member 1173 at the end (wide end 1173c) facing the second support member 112 is greater than the width at the end (narrow end 1173b) facing the first support member 111, thereby forming a pair of wedge surfaces 1173a respectively facing the corresponding second locking members 1171. The second locking member 1171 has an inclined surface opposite to the wedge surface 1173a and inclined in the same direction. When the hovering control member 1173 moves in the first direction, the second locking member 1171 and the hovering control member 1173 remain as Figure 17 shown in the figure. At this time, the hovering unlocking elastic member 1174 can drive the second locking member 1171 to separate from the third locking member 1172. When the hovering control member 1173 moves in the second direction, the wide end 1173c of the hovering control member 1173 will push the second locking member 1171 towards the third locking member 1172 during the movement, so that the second locking member 1171 and the third locking member 1172 remain locked.

[0114] To limit the movement of the second locking member 1171 in a set direction (i.e., the direction of approaching and moving away from the third locking member 1172), the first support member 111 has a first limiting portion, and the second locking member 1171 cooperates with the first limiting portion and is restricted to move in the direction of approaching and moving away from the third locking member 1172. Please refer to Figure 17 , in some embodiments, the first limiting portion is a first limiting groove 1111 provided on the first support member 111, and the first limiting groove 1111 is arranged perpendicular to the movement direction of the third locking member 1172 on the plane to guide the second locking member 1171 to approach and move away from the third locking member 1172.

[0115] To limit the movement of the third locking member 1172 in a set direction, the first support member 111 has a second limiting portion arranged along the extension direction of the unlocking wire body 1141, and the third locking member 1172 cooperates with the second limiting portion and is restricted to move along the extension direction of the unlocking wire body 1141. Please refer to Figure 18 , in some embodiments, the second limiting portion is a second limiting groove 1112 provided on the first support member 111, and the guiding direction of the second limiting groove 1112 is consistent with the extension direction of the unlocking wire body 1141, and its purpose is to ensure that the third locking member 1172 can move relative to the first support member 111 when the second support member 112 is folded.

[0116] Please refer to Figure 6 、 10In some embodiments, in order to keep the first support member 111 and the second support member 112 having a flat plane, the first support member 111 and the second support member 112 are provided with wire grooves 1113 and 1121, and the unlocking wire 1141 is buried in the wire grooves 1113 and 1121. In order to block the wire grooves 1113 and 1121 and other internal structures, the other internal structures may be a rotating assembly 115, a tensioning structure 116, a second locking member 1171, a third locking member 1172, and a hovering control member 1173, etc. In some embodiments, the wire grooves 1113 and 1121 and other structures can be covered by a magic tape 118 or other means to achieve the blocking of the internal structures, which is beneficial to the postoperative cleaning and disinfection work.

[0117] Please refer to Figure 7 In some embodiments, the second support member 112 has an unlocking vacancy, the unlocking member 1142 is arranged at the unlocking vacancy, the wire grooves 1113 and 1121 communicate with the unlocking vacancy 1122, the unlocking wire 1141 extends into the unlocking vacancy 1122 and is connected to the unlocking member 1142.

[0118] On the other hand, the present application also provides a medical support device 1 applied to an operating table, which includes a joint assembly 12 and a folding mechanism 11 as shown in any of the above embodiments.

[0119] In some embodiments, the first support member 111 is mounted on the joint assembly 12 in a manner that can move relative to the joint assembly 12, so that the folding mechanism 11 can move relative to the joint assembly 12. The first locking member 113 can lock with the joint assembly 12 to prevent the folding mechanism 11 from moving relative to the joint assembly 12.

[0120] In some embodiments, the first support member 111 is mounted on the joint assembly 12 in a manner that can rotate about a first axis; the second support member 112 is mounted on the first support member 111 in a manner that can rotate about a second axis; the first axis is perpendicular to the horizontal plane, the second axis is not coplanar with the first axis, and in Figure 3 and Figure 18 the shown embodiment, the second axis is skew perpendicular to the first axis.

[0121] In addition, please refer to Figure 1 and 5 In some embodiments, in order to improve the support comfort, a cushion 13 may be provided on the first support member 111 and the second support member 112. For example, the cushion 13 can be fixed on the first support member 111 and the second support member 112 by a paste-type magic tape 118 or other structures to improve the comfort of the patient.

[0122] In some embodiments, the unlocking space 1122 and the unlocking member 1142 can be covered from the support front surface (i.e., the side facing the patient) by the cushion body 13 or other structures, so that the unlocking member 1142 is not exposed.

[0123] The above uses specific examples to elaborate on the present invention, which is only used to help understand the present invention and is not intended to limit the present invention. For those skilled in the technical field to which the present invention pertains, several simple deductions, deformations or substitutions can also be made based on the idea of the present invention.

Claims

1. A folding mechanism of a medical support device, characterized in that, Comprising: A first support member; A first locking member disposed on the first support member for locking the first support member to a corresponding joint assembly to prevent relative movement between the first support member and the joint assembly; A second support member mounted on the first support member in a manner capable of pivoting relative to the first support member and being positionable at a set pivoting angle, the first support member and the second support member being for supporting a body part of a patient; And an unlocking assembly including an unlocking wire and an unlocking member for an operator to apply an unlocking force, the unlocking member being disposed on the second support member, and two ends of the unlocking wire being respectively connected to the first locking member and the unlocking member to drive the first locking member to unlock when the operator applies the unlocking force; Wherein, a tensioning structure is provided on the first support member and / or the second support member, the tensioning structure abuts against the unlocking wire to keep the unlocking wire in a tensioned state; at least a portion of the unlocking wire in contact with the tensioning structure is a bendable portion, and the bendable portion can be bent as the second support member pivots relative to the first support member.

2. The folding mechanism according to claim 1, characterized in that, The tensioning structure is an adaptive tensioning structure, and when the second support member pivots relative to the first support member, the adaptive tensioning structure can adaptively adjust the tensioning force of the unlocking wire to prevent the unlocking wire from accidentally unlocking the first locking member.

3. The folding mechanism according to claim 2, characterized in that, The adaptive tensioning structure includes a tensioning wheel and a tensioning elastic member, the tensioning elastic member forms a floating support for the tensioning wheel, and the elastic force of the tensioning elastic member drives the tensioning wheel to press against the bendable portion to keep the unlocking wire in a tensioned state; when the second support member pivots relative to the first support member, the unlocking wire and the tensioning wheel can adaptively adjust their positions to adjust the tensioning force of the tensioning wheel on the unlocking wire.

4. The folding mechanism according to claim 3, characterized in that, The bendable portion is disposed below the tensioning wheel, and the tensioning wheel presses downward against the bendable portion; the adaptive tensioning structure has an adjustment space for the tensioning wheel to adjust up and down; when the second support member pivots relative to the first support member, the unlocking wire can drive the tensioning wheel to adaptively adjust its position in the adjustment space to adjust the tensioning force of the tensioning wheel on the unlocking wire.

5. The folding mechanism according to claim 4, characterized in that, The adaptive tensioning structure includes a base mounted on the first support member or the second support member, the base having the adjustment space, and the tensioning wheel is movably mounted in the adjustment space.

6. The folding mechanism according to claim 5, wherein, The base has a pair of oppositely arranged protrusions, each protrusion having the adjustment space, the tensioning wheel is located between the pair of protrusions, and two end heads of the tensioning wheel are respectively inserted into the corresponding adjustment spaces, and the adjustment space is larger than the corresponding end heads on the tensioning wheel so that the tensioning wheel can adjust its position on the base.

7. The folding mechanism according to claim 6, wherein, The adjustment space has a pair of oppositely arranged vertical guiding portions to limit the tensioning wheel to adjust its position in the adjustment space in the up and down direction.

8. The folding mechanism according to claim 7, wherein The vertical guiding portion includes a top wall, a bottom wall and a pair of side walls. The pair of side walls define the lateral dimension of the adjustment space, and the top wall and the bottom wall define the vertical dimension of the adjustment space. The lateral dimension of the adjustment space is substantially the same as the lateral dimension of the corresponding end of the tensioning wheel, and the vertical dimension of the adjustment space is greater than the vertical dimension of the corresponding end of the tensioning wheel, so as to limit the tensioning wheel to adjust its position in the adjustment space in the vertical up and down direction.

9. The folding mechanism according to claim 6, characterized in that, Fixing members are respectively provided at both ends of the tensioning wheel. The fixing members pass downward from within the adjustment space to the outside of the protrusion. A tensioning elastic member is provided between the end of the fixing member located outside the protrusion and the protrusion. The elastic force of the tensioning elastic member drives the tensioning wheel downward to abut against the bendable portion.

10. The folding mechanism according to claim 6, wherein A tensioning elastic member is provided between the upper side of the end of the tensioning wheel and the cavity wall of the adjustment space. The elastic force of the tensioning elastic member drives the tensioning wheel downward to abut against the bendable portion.

11. The folding mechanism according to claim 2, wherein, The self-adaptive tensioning structure includes a tensioning wheel. The bendable portion is provided below the tensioning wheel. The tensioning wheel abuts downward against the bendable portion so that the unlocking wire body is kept in a tensioned state. The self-adaptive tensioning structure has an adjustment space for the tensioning wheel to adjust up and down. When the second support member rotates relative to the first support member, the unlocking wire body can drive the tensioning wheel to adaptively adjust its position in the adjustment space so as to adjust the tensioning force of the tensioning wheel on the unlocking wire body.

12. The folding mechanism according to claim 11, characterized in that, The self-adaptive tensioning structure includes a base. The base has a pair of protrusions arranged oppositely. Each protrusion has the adjustment space. The tensioning wheel is located between the pair of protrusions. The two ends of the tensioning wheel are respectively inserted into the corresponding adjustment spaces. The adjustment space is larger than the corresponding end on the tensioning wheel so that the tensioning wheel can adjust its position on the base.

13. The folding mechanism according to claim 2, wherein, The self-adaptive tensioning structure includes a tensioning wheel. The bendable portion is provided below the tensioning wheel. The tensioning wheel abuts downward against the bendable portion so that the unlocking wire body is kept in a tensioned state. At least part of the tensioning wheel and / or the bendable portion is made of an elastic material. When the second support member rotates relative to the first support member, the unlocking wire body and / or the tensioning wheel deforms to adjust the tensioning force of the tensioning wheel on the unlocking wire body.

14. The folding mechanism according to any one of claims 1 to 13, characterized in that, The portion of the tensioning wheel in contact with the bendable portion is a contact area, and the shape of the contact area is smoothly transitioned along the extending direction of the unlocking wire body.

15. The folding mechanism according to claim 2, characterized in that, The self-adaptive tensioning structure includes a tensioning wheel. The bendable portion is provided below the tensioning wheel. The tensioning wheel abuts downward against the bendable portion so that the unlocking wire body is kept in a tensioned state. When there is no rotation between the second support member and the first support member, with the portion of the unlocking wire body in contact with the tensioning wheel as the boundary, the end of the unlocking wire body for connecting the unlocking member is a folded section, and the portion of the tensioning wheel corresponding to the folded section forms an avoidance area. When the second support member is folded relative to the first support member, the unlocking wire body can move towards the avoidance area to adjust the tension force of the tension pulley on the unlocking wire body.

16. The folding mechanism according to claim 15, characterized in that, When there is no folding between the second support member and the first support member, a gap serving as the avoidance area is formed between the tension pulley and the folding section.

17. The folding mechanism according to claim 16, characterized in that, When there is no folding between the second support member and the first support member, the portion of the tension pulley corresponding to the folding section has an inclined surface inclined obliquely upward from bottom to top, and a gap serving as the avoidance area is formed between the inclined surface and the folding section.

18. The folding mechanism according to claim 1, characterized in that, The way of being able to be folded relative to the first support member and be positioned at a set folding angle includes at least one of a damping shaft structure, an elastic member hovering mechanism, a gas spring hovering mechanism, and a buckle rotation positioning structure.

19. The folding mechanism according to claim 3, characterized in that, The adaptive tensioning structure includes a base and a connecting member, the connecting member is pivotally or rotatably connected to the base, and the tension pulley is mounted on the connecting member.

20. The folding mechanism according to claim 19, wherein The connecting member has an intermediate portion connected to the tension pulley, an end portion rotatably connected to the base, and a transition portion connecting the intermediate portion and the end portion. The intermediate portion and the end portion are not on the same straight line. The tension pulley is arranged on the intermediate portion, and the tension elastic member is arranged between the base and the connecting member. The tension elastic member is used to drive the connecting member and the tension pulley to abut against the unlocking wire body to tension it.

21. The folding mechanism according to claim 1, characterized in that, At least one second locking member is connected to the first support member, and at least one third locking member is connected to the second support member. The second locking member and the third locking member have a locked state and an unlocked state. In the locked state, the second locking member and the third locking member are locked to each other to lock the first support member and the second support member at a set folding angle; In the unlocked state, the second locking member and the third locking member are unlocked from each other so that the second support member can be folded relative to the first support member; The unlocking wire body is provided with a hovering control member, and the hovering control member moves along with the unlocking wire body. Among them, the locked state and the unlocked state of the second locking member and the third locking member are associated with the movement of the hovering control member, so that the operator can control the second locking member and the third locking member to be in the locked state and / or the unlocked state through the unlocking member.

22. The folding mechanism according to claim 21, characterized in that, The movement of the hovering control member and the unlocking wire body includes a first-direction movement and a second-direction movement. In the first-direction movement, the unlocking wire body drives the first locking member to be unlocked; in the second-direction movement, the first locking member returns to the locked state. Among them, the first-direction movement of the hovering control member is associated with the unlocked state of the second locking member and the third locking member, and the second-direction movement of the hovering control member is associated with the locked state of the second locking member and the third locking member.

23. The folding mechanism according to claim 22, wherein, It further includes a hovering unlocking elastic member. The second locking member and the third locking member are kept in an unlocked state under the action of the hovering unlocking elastic member. During the movement in the first direction, the hovering control member releases the second locking member and / or the third locking member, so that the second locking member and the third locking member are reset to the unlocked state under the action of the hovering unlocking elastic member; During the movement in the second direction, the hovering control member drives the second locking member or the third locking member to overcome the elastic force of the hovering unlocking elastic member and transform into a locked state.

24. The folding mechanism according to claim 23, characterized in that, The third locking member is movably arranged on the first support member. The third locking member is connected to the second support member through a connecting rod. Two ends of the connecting rod are respectively rotatably connected to the third locking member and the second support member; the second locking member is movably arranged on the first support member.

25. The folding mechanism according to claim 24, characterized in that, There are at least a pair of the second locking members. The elastic force of the hovering unlocking elastic member drives a pair of the second locking members to approach each other; there are at least a pair of the third locking members. The third locking members are respectively arranged on two sides of a pair of the second locking members. The hovering control member is located between a pair of the second locking members. During the movement in the first direction, the hovering control member releases the second locking member, and the second locking member is reset to the unlocked state; During the movement in the second direction, the hovering control member drives the second locking member to move towards the third locking member, so that the second locking member and the third locking member transform into the locked state.

26. The folding mechanism according to claim 25, wherein The hovering control member has a wedge-shaped surface. The second locking members located on both sides of the hovering control member cooperate with the wedge-shaped surface, so that the movement of the hovering control member in the second direction can push the second locking members to approach the third locking member.

27. The folding mechanism according to claim 25, wherein The first support member has a first limiting portion. The second locking member cooperates with the first limiting portion and is restricted to move closer to and away from the third locking member; the first support member has a second limiting portion arranged along the extending direction of the unlocking wire body. The third locking member cooperates with the second limiting portion and is restricted to move along the extending direction of the unlocking wire body.

28. The folding mechanism according to claim 1, characterized in that, The first support member and the second support member are provided with wire body grooves. The unlocking wire body is buried in the wire body grooves; the second support member has an unlocking space. The unlocking member is arranged at the unlocking space. The wire body grooves communicate with the unlocking space. The unlocking wire body extends into the unlocking space and is connected to the unlocking member.

29. A medical support device applied to an operating table, characterized in that, It includes: a joint assembly for docking the medical support device with other support structures; and a folding mechanism according to any one of claims 1-28; wherein the first support member is mounted on the joint assembly in a manner that can move relative to the joint assembly, so that the folding mechanism can move relative to the joint assembly; the first locking member can be locked with the joint assembly to prevent the folding mechanism from moving relative to the joint assembly.

30. The medical support device according to claim 29, characterized in that, The first support member is mounted on the joint assembly in a manner that it can rotate about a first axis; the second support member is mounted on the first support member in a manner that it can rotate about a second axis; the first axis is perpendicular to the horizontal plane, and the second axis is not coplanar with the first axis.

31. The medical support device according to claim 29, wherein, It further includes a cushion body, and the cushion body is fixedly laid on the first support member and the second support member.

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