Swivel lock

Abstract

This application relates to the field of mechanical device technology, and more particularly to a rotation locking device, comprising a limiting part, a rotating part, and a locking structure. The limiting part has several guide grooves that communicate with each other. The rotating part includes a rotating mating component and a guide component. The rotating mating component and the limiting part are rotatably connected, and the guide component is connected to the rotating mating component. The guide component slides within the several guide grooves to limit the rotation angle of the rotating mating component. The locking structure is used to lock the rotation angle of the rotating part. When the angle needs to be adjusted, the rotating mating component rotates under force, causing the guide component to slide within the guide grooves. Due to the spatial trajectory limitation of the guide grooves, the rotating mating component can only move along a preset path. When it reaches the predetermined position, the locking structure activates to fix the rotating mating component, thereby completing the angle adjustment. Multi-directional locking can be achieved without a complex transmission mechanism, simplifying the device structure, reducing manufacturing costs, and improving ease of use and reliability.

Description

Technical Field

[0001] This application relates to the field of mechanical device technology, and more particularly to a rotary locking device. Background Technology

[0002] Currently, most common rotary locking devices on the market can only lock at a single angle, or can only achieve rotation in two directions, such as 0° and 180°, and cannot achieve precise locking and rotation in multiple directions. For example, traditional rotary locking mechanisms typically employ the following methods: Single-point locking: Locking is achieved at a single position through a single locking pin or buckle, and cannot be locked at multiple angles; Multi-angle positioning: A limited number of fixed angles can be achieved through multiple positioning holes, but the structure is complex, the positioning accuracy is low, and continuous rotation cannot be achieved. Spring-locking type: Automatic locking is achieved through spring force, but it cannot achieve precise control in multiple directions.

[0003] These existing technologies have limited locking positions, low positioning accuracy, and cannot achieve precise locking during continuous rotation. They are difficult to meet the needs of precision equipment, have complex structures, and are cumbersome to lock and unlock.

[0004] Therefore, a device is needed that can achieve precise locking rotation in multiple directions to meet the requirements of modern mechanical equipment for the flexibility and precision of rotating mechanisms. Summary of the Invention

[0005] The summary section introduces a series of simplified concepts, which will be further explained in detail in the detailed description section. This part of the invention is not intended to limit the key features and essential technical features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.

[0006] The present invention aims to solve at least one of the technical problems existing in the prior art or related art.

[0007] In view of this, a rotation locking device is proposed according to an embodiment of this application, comprising: The limiting part has a plurality of guide grooves, and the plurality of guide grooves are interconnected; The rotating part includes a rotating mating part and a guide part. The rotating mating part and the limiting part are rotatably connected. The guide part is connected to the rotating mating part and slides in a plurality of guide grooves to limit the rotation angle of the rotating mating part. A locking structure is provided between the rotating mating member and the limiting part, and is used to lock the rotation angle of the rotating part.

[0008] In one feasible implementation, the limiting portion includes: A limiting cap, the limiting cap having a spherical inner contour surface, the rotating fitting being rotatably disposed inside the limiting cap, a plurality of guide grooves being formed in the limiting cap, and the guide extending through the guide grooves to the outside of the limiting cap for connecting to an external connector.

[0009] In one feasible implementation, the rotating mating member includes: The ball head slides into the inner contour surface.

[0010] In one feasible implementation, the locking structure includes: A plurality of positioning grooves, all of which are formed in the rotating mating component; A positioning block, which is slidably disposed on the limiting part, and at least a portion of the positioning block is used to be inserted into the positioning groove; A linear drive component is disposed on the limiting part. The output end of the linear drive component is connected to the positioning block, and is used to drive the positioning block to slide into the positioning groove to lock the rotating mating part, or to slide out from the positioning groove to unlock the rotating mating part.

[0011] In one feasible implementation, it further includes: A support base is connected to the limiting part. The support base has a cavity structure inside. The positioning block is slidably disposed in the cavity structure, and one end of the positioning block can protrude out of the support base.

[0012] In one feasible implementation, the linear drive component includes: A connecting rod, one end of which is connected to the positioning block, and a slide rail on the support base that connects the cavity structure to the outside, the other end of which extends through the slide rail to the outside of the support base, and a pusher is connected to the connecting rod.

[0013] In one feasible implementation, the linear drive component further includes: An elastic element, one end of which is connected to the positioning block and the other end of which is fixed to the support base, is used to provide an elastic force that causes the positioning block to slide into the positioning groove.

[0014] In one feasible implementation, the actuating element includes: A pressure rod is rotatably connected to the support base. The pressure rod is located on the side of the connecting rod near the guide groove. The pressure rod overlaps with the connecting rod. One end of the pressure rod is provided with a hand-held part for pushing the pressure rod to rotate, thereby driving the connecting rod and the positioning block to move.

[0015] In one feasible implementation, two sets of connecting rods are arranged on both sides of the support base, and two sets of pressure rods are arranged corresponding to the connecting rods, with the two sets of pressure rods connected by a hand-held part.

[0016] In one feasible implementation, at least four guide slots are provided, and the at least four guide slots are arranged radially.

[0017] Compared with the prior art, the present invention has at least the following beneficial effects: The rotation locking device provided in this application includes a limiting part, a rotating part, and a locking structure. The limiting part has several guide grooves that communicate with each other. The rotating part includes a rotating mating part and a guide part. The rotating mating part and the limiting part are rotatably connected, and the guide part is connected to the rotating mating part. The guide part slides within the guide grooves to limit the rotation angle of the rotating mating part. The locking structure is located between the rotating mating part and the limiting part to lock the rotation angle of the rotating part. When the angle needs to be adjusted, the rotating mating part rotates under force, causing the guide part to slide within the guide grooves. Due to the spatial trajectory limitation of the guide grooves, the rotating mating part can only move along a preset path. When it reaches the predetermined position, the locking structure activates to fix the rotating mating part, thereby completing the angle adjustment. By setting interconnected guide grooves and a guide part, precise guidance and limitation of the movement trajectory of the rotating mating part are achieved, avoiding random shaking during rotation and ensuring the controllability of the rotation angle. At the same time, this structural design allows the device to adapt to multi-angle adjustment needs, achieving multi-directional locking without complex transmission mechanisms, simplifying the device structure, reducing manufacturing costs, and improving ease of use and reliability.

[0018] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, and in order to make the above and other objects, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention are described below. Attached Figure Description

[0019] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings: Figure 1A schematic structural diagram of the overall structure of a rotation locking device according to an embodiment of this application; Figure 2 This is a schematic structural diagram of the cross-sectional view of a rotation locking device according to an embodiment of this application.

[0020] in, Figures 1 to 2 The correspondence between the reference numerals and component names in the attached drawings is as follows: 100 limiting part, 200 rotating part, 300 locking structure, 400 support base; 101 Guide groove, 102 Limit cap; 201 Rotating mating part, 202 Guide part; 310 Positioning groove, 320 Positioning block, 330 Linear drive component, 331 Connecting rod, 332 Elastic part, 333 Pressure rod, 334 Hand grip. Detailed Implementation

[0021] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the technical solutions provided by the present invention. However, it will be apparent to those skilled in the art that the technical solutions provided by the present invention can be implemented without one or more of these details.

[0022] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of exemplary embodiments according to the invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms “comprising” and / or “including” are used in this specification, they indicate the presence of the stated features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or combinations thereof.

[0023] Exemplary embodiments according to the present invention will now be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in many different forms and should not be construed as being limited to the embodiments set forth herein. It should be understood that these embodiments are provided so that the disclosure of the invention is thorough and complete, and that the concept of these exemplary embodiments is fully conveyed to those skilled in the art.

[0024] To better understand the above technical solutions, the technical solutions of the embodiments of this application will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the embodiments of this application and the specific features in the embodiments are detailed descriptions of the technical solutions of the embodiments of this application, rather than limitations on the technical solutions of this application. In the absence of conflict, the embodiments of this application and the technical features in the embodiments can be combined with each other.

[0025] like Figures 1 to 2As shown in the embodiment of this application, a rotation locking device is proposed, including a limiting part 100, a rotating part 200, and a locking structure 300. The limiting part 100 has a plurality of guide grooves 101, which are interconnected. The rotating part 200 includes a rotating mating part 201 and a guide part 202. The rotating mating part 201 and the limiting part 100 are rotatably connected. The guide part 202 is connected to the rotating mating part 201 and slides within the plurality of guide grooves 101 to limit the rotation angle of the rotating mating part 201. The locking structure 300 is disposed between the rotating mating part 201 and the limiting part 100 to lock the rotation angle of the rotating part 200. The number and position of the guide grooves 101 can be set as needed, enabling precise locking and rotation at multiple fixed angles. It is easy to operate, has a simple structure, high positioning accuracy, and is suitable for various mechanical equipment that requires multi-directional locking and rotation.

[0026] In this technical solution, the limiting part 100 can be designed as a spherical shell, with the guide groove 101 extending along the latitude and longitude of the shell surface. The rotating mating part 201 is designed as a sphere or turntable structure. The guide part 202 can be a slider, roller, or guide pin, and is fixed to the rotating mating part 201 by threaded connection, welding, or integral molding. During operation, when the angle needs to be adjusted, the rotating mating part 201 rotates under force, causing the guide part 202 to slide within the guide groove 101. Due to the spatial trajectory limitation of the guide groove 101, the rotating mating part 201 can only move along a preset path. When it reaches the predetermined position, the locking structure 300 activates to fix the rotating mating part 201, thereby completing the angle adjustment.

[0027] Understandably, by setting up interconnected guide grooves 101 in conjunction with guide members 202, precise guidance and limiting of the movement trajectory of rotating mating parts 201 are achieved, avoiding random swaying during rotation and ensuring the controllability of the rotation angle. At the same time, this structural design enables the device to adapt to multi-angle adjustment requirements, achieving multi-directional locking without complex transmission mechanisms, simplifying the device structure, reducing manufacturing costs, and improving ease of use and reliability.

[0028] like Figure 2 As shown, in one feasible embodiment, the limiting part 100 includes a limiting cap 102, the limiting cap 102 includes a spherical inner contour surface, the rotating fitting 201 is rotatably disposed inside the limiting cap 102, a plurality of guide grooves 101 are formed in the limiting cap 102, and the guide 202 extends through the guide grooves 101 to the outside of the limiting cap 102 for connecting external connecting parts, such as a rotating shaft.

[0029] In this technical solution, the limiting cap 102 can be integrally formed from metal through casting or stamping processes, or it can be injection molded from engineering plastics. Its spherical inner contour design provides a large coverage area to enhance stability. The guide groove 101 can be a straight groove or an arc-shaped groove designed according to the motion trajectory. The guide member 202 can be a pin or a bolt, and its end passing through the guide groove 101 can be machined with connecting threads or a quick-release interface. During operation, the external connector is installed at the end of the guide member 202 that extends out of the limiting cap 102. When the rotating mating member 201 rotates inside the limiting cap 102, the guide member 202 slides along the guide groove 101, causing the external connector to swing synchronously. Due to the covering effect of the limiting cap 102, the rotating mating member 201 always remains near the center of the sphere during multi-angle rotation.

[0030] Understandably, the spherical cap 102 with its inner contour surface, in conjunction with the internal rotating fitting, forms the basis of the ball joint structure, enabling flexible rotation with multiple degrees of freedom. The guide groove 101 is formed on the spherical cap 102 and allows the guide 202 to extend out, which not only achieves mechanical limitation of the rotation angle but also facilitates direct connection of external loads, making the device compact, strong in load-bearing capacity, and suitable for applications with large forces.

[0031] like Figure 2 As shown, in one feasible embodiment, the rotating mating member 201 includes a ball head and a ball head that slides into the inner contour surface.

[0032] In this technical solution, the ball head can be a complete spherical structure or a structure with a portion of a sphere removed to facilitate the installation of other components. The surface of the ball head can be hardened or coated with a wear-resistant coating to reduce the coefficient of friction, or a gasket or retainer can be provided between the ball head and the inner contour surface. During operation, the ball head rotates omnidirectionally within the inner contour surface of the limiting cap 102, forming a sliding friction pair between them, and the guide member 202 moves with the rotation of the ball head.

[0033] Understandably, the fit between the ball head and the inner contour surface of the spherical crown is a surface contact fit, which can withstand a greater load and has a more uniform wear distribution compared to point contact or line contact, thus extending the service life of the device. This ball joint fit makes the rotation smooth and without jamming, and can well adapt to the adjustment needs of complex angles.

[0034] like Figure 2As shown, in one feasible embodiment, the locking structure 300 includes a plurality of positioning grooves 310, a positioning block 320, and a linear drive component 330. The plurality of positioning grooves 310 are all formed on the rotating mating member 201. The positioning block 320 is slidably disposed on the limiting part 100. At least a portion of the positioning block 320 is used to be inserted into the positioning groove 310. The linear drive component 330 is disposed on the limiting part 100. The output end of the linear drive component 330 is connected to the positioning block 320 and is used to drive the positioning block 320 to slide into the positioning groove 310 to lock the rotating mating member 201, or to slide out from the positioning groove 310 to unlock the rotating mating member 201.

[0035] In this technical solution, the positioning grooves 310 can be arranged in an array around the rotation center of the ball head, and their cross-sectional shape can be V-shaped, trapezoidal, or rectangular. The end shape of the positioning block 320 matches the positioning groove 310 to achieve a tight fit. The linear drive component 330 can be a cylinder, electromagnet, or mechanical push rod mechanism. The positioning block 320 performs reciprocating linear motion under the action of the linear drive component 330. Specifically, when locking is required, the linear drive component 330 pushes the positioning block 320 into the corresponding positioning groove 310, using mechanical engagement to restrict the rotational freedom of the ball head; when unlocking is required, the linear drive component 330 reverses its action, pulling the positioning block 320 out of the positioning groove 310, releasing the constraint on the ball head.

[0036] Understandably, the locking method using the insertion and engagement of the positioning block 320 and the positioning groove 310 is a rigid locking method with high locking force and strong vibration resistance. It can maintain angle stability and prevent loosening even under heavy loads or environmental vibrations. The linear drive component 330 enables automated or semi-automated control of locking and unlocking, making operation labor-saving and responsive.

[0037] like Figure 2 As shown, in one feasible embodiment, the rotation locking device further includes a support base 400, which is connected to the limiting part 100. The support base 400 has a cavity structure inside, and the positioning block 320 is slidably disposed in the cavity structure. One end of the positioning block 320 can pass through the support base 400.

[0038] In this technical solution, the support base 400 can be designed as a cylindrical or square shell, fixed to the bottom or side of the limit cap 102 by screws or clips. Its internal cavity structure provides a sliding track and installation space for the positioning block 320. The positioning block 320 can be designed as a T-shaped slider or piston structure, tightly fitting against the inner wall of the cavity to prevent displacement. During operation, the support base 400 acts as the carrier of the locking structure 300, remaining stationary, while the positioning block 320 moves telescopically within the cavity, thus protruding from the support base 400 and engaging with the positioning groove 310 on the rotating mating part 201.

[0039] Understandably, the support base 400 provides the locking structure 300 with an independent installation space and protective barrier, preventing dust and debris from entering the locking mechanism and affecting the motion accuracy. At the same time, it enhances the overall rigidity and stability of the locking structure 300, facilitating the overall installation and fixation of the device.

[0040] like Figure 1 and Figure 2 As shown, in one feasible embodiment, the linear drive component 330 includes a connecting rod 331, one end of which is connected to the positioning block 320. The support base 400 has a slide rail that connects the cavity structure and the outside. The other end of the connecting rod 331 extends through the slide rail to the outside of the support base 400. The connecting rod 331 is connected to a pusher.

[0041] In this technical solution, the connecting rod 331 can be designed as a rigid rod, and the slide can be a long, narrow through hole or slot. The connecting rod 331 reciprocates along the slide. The pushing component can be a knob, pull ring, or lever mechanism, or it can be a handle that is manually pushed. The specific working process is as follows: the operator moves or presses the pushing component, which drives the connecting rod 331 to move along the slide. The connecting rod 331 then pulls or pushes the positioning block 320 to slide within the cavity, thereby achieving the unlocking or locking action.

[0042] Understandably, by transmitting external motion to the sliding motion of the positioning block 320 through the connecting rod 331, and cooperating with the operation of the pusher, a transmission mechanism of external operation and internal response is realized, and the operation logic is simple and intuitive. The slide not only plays a guiding role, but also limits the stroke of the connecting rod 331, preventing the positioning block 320 from leaving the effective stroke range, and ensuring the reliability of the mechanism operation.

[0043] like Figure 1 and Figure 2 As shown, in one feasible embodiment, the linear drive component 330 further includes an elastic element 332. One end of the elastic element 332 is connected to the positioning block 320, and the other end is fixed to the support base 400. The elastic element 332 provides an elastic force that allows the positioning block 320 to slide into the positioning groove 310. A spring is chosen for the elastic element 332, and high-precision positioning is achieved through the precise cooperation between the spring force and the ball head locking position. After locking, the ball head is tightly engaged with the locking position, preventing displacement of the rotating shaft and ensuring good stability. It can be widely used in various mechanical equipment requiring multi-directional locking and rotation, such as medical equipment, industrial machinery, and household appliances.

[0044] In this technical solution, the elastic element 332 can be a cylindrical helical compression spring, a tension spring, or a disc spring, and its preload can be designed and adjusted according to the locking force requirements. During operation, when the pushing element is not subjected to external force, the elastic element 332 is in a natural or compressed state, driving the positioning block 320 to maintain its insertion into the positioning groove 310, i.e., the device is in a normally closed and locked state; when the angle needs to be adjusted, the operator overcomes the elastic force to operate the pushing element, causing the positioning block 320 to exit the positioning groove 310. After adjustment, the pushing element is released, and under the action of the elastic force, the positioning block 320 automatically resets and inserts into the new positioning groove 310.

[0045] Understandably, the automatic locking achieved by utilizing the restoring force of the elastic element 332 gives the device a "self-locking" function, which can automatically restore the lock in the event of accidental loss of force or non-operation, thus improving safety. At the same time, this design simplifies the operation process; users only need to perform the unlocking operation, and the locking action is automatically completed by the device, improving the user experience.

[0046] In one feasible embodiment, the pushing component includes a pressure rod 333, which is rotatably connected to the support base 400. The pressure rod 333 is located on the side of the connecting rod 331 near the guide groove 101, and overlaps with the connecting rod 331. One end of the pressure rod 333 is provided with a handle 334 for pushing the pressure rod 333 to rotate, thereby driving the connecting rod 331 and the positioning block 320 to move. The unlocking, rotation, and locking processes can be completed simply by pressing down and releasing the handle 334, making the operation simple.

[0047] In this technical solution, the pressure rod 333 can be designed as a bent rod or a straight rod, and is hinged to the support base 400 via a pin to form a lever structure. The overlap between the pressure rod 333 and the connecting rod 331 can be designed as a cam surface, an inclined surface, or a groove to facilitate the conversion of the rotation of the pressure rod 333 into the linear motion of the connecting rod 331. In specific operation, when the user presses the handheld part 334, the pressure rod 333 rotates around the hinge point, and its other end pushes the connecting rod 331 to move, thereby causing the positioning block 320 to overcome the elastic force and exit the positioning groove 310 to unlock; after releasing the handheld part 334, under the action of the elastic element 332, the connecting rod 331 moves in the opposite direction to lift the pressure rod 333 back to its original position, and at the same time the positioning block 320 locks.

[0048] Understandably, the lever 333 design, which uses the lever principle, can amplify the operating force, making the unlocking operation more effortless, especially when the locking force is large; the hand grip 334 is ergonomically designed, making it easy to grip and apply force, and making the entire adjustment process smooth and quick.

[0049] like Figure 1As shown, in one feasible embodiment, two sets of connecting rods 331 are arranged, and the two sets of connecting rods 331 are arranged on both sides of the support base 400. Two sets of pressure rods 333 are arranged corresponding to the connecting rods 331, and the two sets of pressure rods 333 are connected by a hand-held part 334.

[0050] In this technical solution, two sets of connecting rods 331 are symmetrically arranged on the left and right sides of the support base 400, respectively connecting to different force points of the same positioning block 320. The two sets of pressure rods 333 can be independent components linked by connecting rods, or they can be an integrally formed U-shaped or frame structure. During operation, the handheld part 334 simultaneously drives the two sets of pressure rods 333 to move, causing the connecting rods 331 on both sides to move synchronously, thereby driving the positioning block 320 to move smoothly.

[0051] Understandably, the use of a symmetrically arranged connecting rod 331 and pressure rod 333 structure on both sides makes the force on the locking structure 300 more balanced, avoiding the tilting or jamming of the positioning block 320 caused by unilateral force, ensuring the smoothness and synchronization of locking and unlocking actions, and further improving the reliability and service life of the device.

[0052] In one feasible implementation, at least four guide grooves 101 are provided, and the at least four guide grooves 101 are arranged radially. In this embodiment, the four guide grooves 101 are distributed at 90-degree intervals.

[0053] In this technical solution, the number of guide grooves 101 can be set to four, six, or eight, etc., according to the actual adjustment density requirements. Their distribution can be uniform at equal angles or non-uniformly distributed according to specific working conditions. For example, four guide grooves 101 can be arranged in a cross shape, allowing the rotating mating part 201 to swing in four directions: front, back, left, and right. If more guide grooves 101 are provided, adjustments at smaller angle intervals can be achieved. When the guide part 202 slides within the guide groove 101, the sidewalls of the guide groove 101 serve a guiding and limiting function.

[0054] It is understandable that by setting multiple radially distributed guide grooves 101, multiple definite motion trajectories and stopping positions can be provided for the rotating mating parts 201, enabling the device to adapt to complex spatial angle adjustment requirements. Moreover, the radial arrangement structure is compact and the mechanical transmission path is clear, ensuring the structural rigidity during multi-angle adjustment.

[0055] In this invention, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "install," "connect," "link," and "fix" should be interpreted broadly. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "link" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0056] In the description of this invention, it should be understood that the terms "upper," "lower," "left," "right," "front," "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or unit referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0057] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0058] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A rotation locking device, characterized in that, include: The limiting part has a plurality of guide grooves, and the plurality of guide grooves are interconnected; The rotating part includes a rotating mating part and a guide part. The rotating mating part and the limiting part are rotatably connected. The guide part is connected to the rotating mating part and slides in a plurality of guide grooves to limit the rotation angle of the rotating mating part. A locking structure is provided between the rotating mating member and the limiting part to lock the rotation angle of the rotating part.

2. The rotation locking device according to claim 1, characterized in that, The limiting part includes: A limiting cap, the limiting cap having a spherical inner contour surface, the rotating fitting being rotatably disposed inside the limiting cap, a plurality of guide grooves being formed in the limiting cap, and the guide extending through the guide grooves to the outside of the limiting cap for connecting to an external connector.

3. The rotation locking device according to claim 2, characterized in that, The rotating fitting includes: The ball head slides into the inner contour surface.

4. The rotation locking device according to claim 1, characterized in that, The locking structure includes: A plurality of positioning grooves, all of which are formed in the rotating mating component; A positioning block, which is slidably disposed on the limiting part, and at least a portion of the positioning block is used to be inserted into the positioning groove; A linear drive component is disposed on the limiting part. The output end of the linear drive component is connected to the positioning block, and is used to drive the positioning block to slide into the positioning groove to lock the rotating mating part, or to slide out from the positioning groove to unlock the rotating mating part.

5. The rotation locking device according to claim 4, characterized in that, Also includes: A support base is connected to the limiting part. The support base has a cavity structure inside. The positioning block is slidably disposed in the cavity structure, and one end of the positioning block can protrude out of the support base.

6. The rotation locking device according to claim 5, characterized in that, The linear drive component includes: A connecting rod, one end of which is connected to the positioning block, and a slide rail on the support base that connects the cavity structure to the outside, the other end of which extends through the slide rail to the outside of the support base, and a pusher is connected to the connecting rod.

7. The rotation locking device according to claim 6, characterized in that, The linear drive component further includes: An elastic element, one end of which is connected to the positioning block and the other end of which is fixed to the support base, is used to provide an elastic force that causes the positioning block to slide into the positioning groove.

8. The rotation locking device according to claim 6, characterized in that, The pushing component includes: A pressure rod is rotatably connected to the support base. The pressure rod is located on the side of the connecting rod near the guide groove. The pressure rod overlaps with the connecting rod. One end of the pressure rod is provided with a hand-held part for pushing the pressure rod to rotate, thereby driving the connecting rod and the positioning block to move.

9. The rotation locking device according to claim 8, characterized in that, Two sets of connecting rods are arranged on both sides of the support base. Two sets of pressure rods are arranged corresponding to the connecting rods, and the two sets of pressure rods are connected by a hand-held part.

10. The rotation locking device according to claim 1, characterized in that, The guide groove is provided in at least four parts, and the at least four guide grooves are arranged radially.

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