Limiting unlocking device of rotating body, table, multifunctional table and intelligent terminal

Abstract

The utility model discloses a limiting unlocking device of a rotating body, a table, a multifunctional table and an intelligent terminal, and relates to the technical field of intelligent terminals. The rotating body is connected with a rotating shaft, the limiting and unlocking device comprises a rotating connecting piece, a rotating limiting assembly and an unlocking assembly, and the rotating shaft is fixedly sleeved with the rotating connecting piece. The rotating limiting assembly comprises a movable part, the movable part slidably sleeves the rotating shaft and is adjacent to the rotating connecting part, a first limiting cavity is formed in the side, close to the movable part, of the rotating connecting part, and the movable part is matched with the first limiting cavity to limit rotation of the rotating connecting part. The unlocking assembly is connected with the movable part, and the unlocking assembly can drive the movable part to move in the direction away from the rotary connecting part by pressing the unlocking assembly so that the movable part can be disengaged from the first limiting cavity. According to the limiting unlocking device of the rotating body, the stability of fixing the position of the rotating body is improved; and unlocking of the rotating body in a small space can be met.

Description

Technical Field

[0001] This utility model relates to the field of smart terminal technology, and in particular to a limit unlocking device for a rotating body, a table, a multi-functional table and a smart terminal. Background Technology

[0002] With the continuous advancement of information technology, multifunctional desks with screen-flipping capabilities have gradually become mainstream in the market, adapting to diverse scenarios such as office work, teaching, and entertainment by adjusting the screen angle. However, the mechanisms used in existing technologies to achieve screen rotation locking and unlocking still have significant shortcomings.

[0003] Currently, most mainstream solutions employ a damping locking structure, balancing the ease of screen fixation and rotation by adjusting the damping value. However, this method presents a dilemma in practical applications: if the locking force is too small (low damping state), the screen is prone to shifting when subjected to external forces or vibrations, resulting in insufficient stability and affecting user operation precision; if the locking force is too large (high damping state), a large torque is required to drive the screen rotation, leading to difficult adjustments and potentially causing table tipping due to torque imbalance, especially for vertical screens with a high center of gravity. Furthermore, in densely populated scenarios such as classrooms and conference rooms, the narrow spacing between adjacent tables results in insufficient space for the lateral pressing or rotating unlocking operation required by traditional damping locking mechanisms, making it difficult for users to quickly complete the unlocking action and severely impacting usage efficiency.

[0004] In summary, the existing screen rotation locking and unlocking mechanisms for multi-functional tables have significant shortcomings in terms of stability, ease of operation, and environmental adaptability. There is an urgent need for a new limiting and unlocking solution that combines high locking strength, low operating resistance, and adaptability to confined spaces. Utility Model Content

[0005] The purpose of this invention is to provide a limiting and unlocking device for a rotating body, a table, a multi-functional table, and a smart terminal, which can achieve stable locking of the rotating body and convenient unlocking in small spaces.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A limiting and unlocking device for a rotating body, wherein the rotating body is connected to a rotating shaft; wherein the limiting and unlocking device includes:

[0008] The rotating connector is fixedly sleeved on the rotating shaft;

[0009] A rotation limiting assembly includes a movable component, which is slidably sleeved on the rotating shaft and disposed adjacent to the rotation connecting component. The rotation connecting component has a first limiting cavity on the side near the movable component. The movable component cooperates with the first limiting cavity to limit the rotation of the rotation connecting component.

[0010] The unlocking component is connected to the movable part. Pressing the unlocking component causes the movable part to move away from the rotating connector, thereby disengaging the movable part from the first limiting cavity.

[0011] As an optional solution for the limiting and unlocking device of the rotating body, the rotation limiting assembly further includes a first elastic element, which is disposed on the side of the movable member away from the rotating connector. The first elastic element can provide the movable member with a driving force to move in a direction closer to the rotating connector.

[0012] As an optional solution for the limiting and unlocking device of the rotating body, the rotation limiting assembly further includes a fixing member. The fixing member has a second limiting cavity on the side near the movable member. The rotating connecting member is fitted to the side of the fixing member that is close to each other. The first limiting cavity and the second limiting cavity are connected to form a sliding cavity that restricts the rotation of the movable member. The depth of the first limiting cavity is less than the thickness of the movable member.

[0013] As an optional solution for the limiting and unlocking device of the rotating body, the limiting and unlocking device further includes a cover, the unlocking component includes a push button, the cover is provided on the rotating connector and the fixing component, the push button is located on the side of the rotating connector away from the rotating limiting component, and one end of the push button can enter the sliding cavity and connect with the moving component;

[0014] The cover has a first shaft through hole on the side near the push button. The push button is movably inserted through the first shaft through hole. When the push button is pressed, the push button pushes the movable part to move away from the rotating connector.

[0015] As an optional solution for the limiting and unlocking device of the rotating body, the rotating connector is provided with a limiting communication port that communicates with the first limiting cavity, and a pushing tooth is provided on one side of the push button. The pushing tooth passes through the limiting communication port and enters the sliding cavity. When the push button is pressed, the pushing tooth can abut against the movable part and push the movable part to move away from the rotating connector.

[0016] As an optional solution for the limiting and unlocking device of the rotating body, multiple pushing teeth are spaced apart along the circumferential direction of the pushing button, and multiple limiting communication ports are spaced apart along the circumferential direction of the rotating connector, with multiple pushing teeth being inserted into multiple limiting communication ports one-to-one.

[0017] As an optional solution for the limiting and unlocking device of the rotating body, the push button is provided with a first limiting switch in the circumference. The first limiting switch can selectively extend out of the outer peripheral wall of the push button to abut against the side wall of the cover to restrict the movement of the push button; or retract into the push button to disengage from the side wall of the cover.

[0018] As an optional solution for the limiting and unlocking device of the rotating body, the unlocking component includes a rotary button and a traction member. The rotary button is rotatably disposed at any position on the support device of the rotating body. One end of the traction member is fixed to the movable member, and the other end is fixed to the rotary button. When the rotary button is pressed, the rotary button rotates and drives the traction member to pull the movable member away from the rotating connector.

[0019] As an optional solution for the limiting and unlocking device of the rotating body, the traction member includes a traction rope and fixed posts at both ends of the traction rope. The movable member is provided with a first fixed groove, the rotary button is provided with a second fixed groove, and the fixed member is provided with a guide groove and a through groove that are interconnected. The fixed post at one end of the traction rope is located in the first fixed groove, and the fixed post at the other end passes through the through groove and is located in the second fixed groove. The guide groove is used to restrict and guide the traction rope.

[0020] As an optional solution for the limiting and unlocking device of the rotating body, a second limiting switch is provided on one side of the rotating button, and a limiting block is provided on the supporting device of the rotating body. The second limiting switch can selectively extend the rotating button to abut against the limiting block to restrict the rotation of the rotating button, or retract the rotating button to disengage from the limiting block.

[0021] A table, comprising a support device and a tabletop, wherein the tabletop is rotatable relative to the support device, characterized in that the tabletop, as the rotating body, is connected to the support device via a limiting and unlocking device for the rotating body as described in any of the above embodiments.

[0022] A multifunctional table includes a support device and a flip-top table. The flip-top table is rotatable relative to the support device. One side of the flip-top table is set as a writing surface, and the other side is set as a display screen. The flip-top table, as the rotating body, is connected to the support device through a limiting and unlocking device for the rotating body as described in any of the above embodiments.

[0023] A smart terminal includes a support device and a display screen, wherein the display screen is rotatable relative to the support device, characterized in that the display screen, as the rotating body, is connected to the support device via a limiting and unlocking device for the rotating body as described in any of the above embodiments.

[0024] The beneficial effects of this utility model are:

[0025] This utility model provides a limiting and unlocking device for a rotating body, comprising a rotating connector, a rotating limiting component, and an unlocking component. The rotating connector is fixedly sleeved on a rotating shaft, and a movable component is slidably sleeved on the rotating shaft and adjacent to the rotating connector. A first limiting cavity on the rotating connector cooperates with the movable component to restrict the rotation of the rotating connector, thereby restricting the rotating shaft from driving the rotating body to rotate, thus locking the rotating body. The unlocking component is connected to the movable component. Pressing the unlocking component causes the movable component to move away from the rotating connector, thereby disengaging the movable component from the first limiting cavity and releasing the rotation restriction of the rotating shaft, allowing the rotating body to rotate. This limiting and unlocking device for a rotating body achieves shaft locking by setting a rotating limiting component that restricts the rotation of the rotating connector fixedly connected to the rotating shaft, increasing the locking strength of the rotating shaft and improving the stability of the rotating body's fixed position. Unlocking is simple; just press the unlocking component to unlock the rotating body, making operation convenient and suitable for unlocking rotating bodies in small spaces.

[0026] The table provided by this utility model has a tabletop that acts as a rotating body and is connected to the support device via the aforementioned limiting and unlocking device. This achieves stability of the tabletop after the angle is adjusted, and allows for quick unlocking of the tabletop in a small space between tables with narrow spacing, enabling faster and more convenient adjustment of the tabletop angle.

[0027] The multifunctional table provided by this utility model has a flip-top tabletop that is connected to the support device via the aforementioned limiting and unlocking device. This enables the flip-top tabletop to maintain stability in different application scenarios and allows for quick unlocking to adjust its use in different scenarios, thereby improving the user's operational convenience and user experience.

[0028] The smart terminal provided by this utility model has a display screen that is connected to the support device via the aforementioned limiting and unlocking device, thereby enabling convenient adjustment of the display screen at different angles and ensuring stability during use, thus improving the user experience. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the connection between the limiting and unlocking device of the rotating body and the rotating shaft provided in Embodiment 1 of this utility model;

[0030] Figure 2 This is a cross-sectional view of the limiting and unlocking device for the rotating body provided in Embodiment 1 of this utility model;

[0031] Figure 3 This is an exploded view of the limiting and unlocking device for the rotating body provided in Embodiment 1 of this utility model;

[0032] Figure 4This is a schematic diagram of the structure of the rotating shaft provided in Embodiment 1 of this utility model;

[0033] Figure 5 This is a schematic diagram of the first structure of the rotating connector provided in Embodiment 1 of this utility model;

[0034] Figure 6 This is a first structural schematic diagram of the movable component provided in Embodiment 1 of this utility model;

[0035] Figure 7 This is a schematic diagram of the first structure of the fastener provided in Embodiment 1 of this utility model;

[0036] Figure 8 This is a schematic diagram of the first structure of the push button provided in Embodiment 1 of this utility model;

[0037] Figure 9 This is a schematic diagram of the second structure of the rotating connector provided in Embodiment 1 of this utility model;

[0038] Figure 10 This is a schematic diagram of the second structure of the push button provided in Embodiment 1 of this utility model;

[0039] Figure 11 This is a schematic diagram of the connection between the rotary button and the traction component provided in Embodiment 1 of this utility model;

[0040] Figure 12 This is a schematic diagram of the second structure of the fastener provided in Embodiment 1 of this utility model;

[0041] Figure 13 This is a schematic diagram of the second structure of the movable component provided in Embodiment 1 of this utility model;

[0042] Figure 14 This is a first structural schematic diagram of the multifunctional table provided in Embodiment 2 of this utility model;

[0043] Figure 15 This is a schematic diagram of the second structure of the multifunctional table provided in Embodiment 2 of this utility model.

[0044] In the picture:

[0045] 100. Rotating shaft; 101. First connecting shaft; 102. Second connecting shaft; 1021. Limiting plane; 103. Connecting plate;

[0046] 200. Support device; 201. Limiting block; 202. Support leg; 203. Support base;

[0047] 300. Flip desktop; 301. Write on desktop; 302. Show screen;

[0048] 1. Rotating connector; 11. First limiting cavity; 12. Limiting communication port; 13. Limiting hole;

[0049] 2. Rotation limiting assembly; 21. Movable part; 211. Center hole; 212. First fixing groove; 213. First extension groove; 214. Spring cavity; 22. Fixing part; 221. Second limiting cavity; 222. Guide groove; 223. Through groove; 224. Support sleeve; 23. First elastic element;

[0050] 3. Unlocking component; 31. Push button; 311. Push tooth; 312. First limit switch; 3121. First pressing post; 3122. First support spring; 313. Limiting flange; 314. First mounting hole; 32. Rotary button; 321. Second fixing groove; 322. Second limit switch; 3221. Second pressing post; 3222. Second support spring; 323. Second mounting hole; 324. Second extension groove; 33. Traction component; 331. Traction rope; 332. Fixing post;

[0051] 4. Gaskets;

[0052] 5. Cover; 51. First shaft through hole; 52. Limiting boss;

[0053] 6. Bushing. Detailed Implementation

[0054] To make the technical problem solved by this utility model, the technical solution adopted, and the technical effect achieved clearer, the technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0055] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0056] Example 1:

[0057] like Figures 1-3 As shown, this embodiment provides a limiting and unlocking device for a rotating body. The rotating body is connected to a rotating shaft 100. By setting the limiting and unlocking device, once the angle of the rotating body is adjusted, the rotating shaft 100 can be locked to prevent the angle of the rotating body from changing again, ensuring that the angle of the rotating body remains unchanged. When it is necessary to readjust the angle of the rotating body, the rotation restriction of the rotating body can be quickly released, allowing the angle of the rotating body to be readjusted again.

[0058] The limiting and unlocking device provided in this embodiment includes a rotating connector 1, a rotating limiting component 2, and an unlocking component 3. The rotating connector 1 is fixedly sleeved on the rotating shaft 100. The rotating limiting component 2 can cooperate with the rotating connector 1 to limit the rotation of the rotating connector 1. The unlocking component 3 is connected to the rotating limiting component 2 and can disengage the rotating limiting component 2 from the rotating connector 1 to release the rotation restriction of the rotating connector 1 by the rotating limiting component 2. Then the rotating shaft 100 can rotate again to adjust the angle of the rotating body.

[0059] Specifically, such as Figures 3-5 As shown, the rotating shaft 100 is configured as a stepped shaft, including a first connecting shaft 101 and a second connecting shaft 102. The diameter of the first connecting shaft 101 is larger than the diameter of the second connecting shaft 102. The end of the first connecting shaft 101 away from the second connecting shaft 102 is fixedly connected to the rotating body through a connecting plate 103. The end of the second connecting shaft 102 away from the first connecting shaft 101 is provided with a limiting plane 1021 arranged radially opposite to it. The center of the rotating connector 1 is provided with a limiting hole 13. The end of the second connecting shaft 102 away from the first connecting shaft 101 is fixedly engaged with the limiting hole 13. Further, the end face of the end of the second connecting shaft 102 away from the first connecting shaft 101 is provided with a threaded hole. After the second connecting shaft 102 is fixedly engaged with the limiting hole 13, a shim 4 is added on the side of the rotating connector 1 away from the movable part 21. The fastening screw passes through the shim 4 and is screwed into the threaded hole to improve the stability of the rotating shaft 100 and the rotating connector 1.

[0060] like Figure 5 and Figure 6 As shown, the rotation limiting assembly 2 includes a movable part 21, which is slidably sleeved on the rotating shaft 100 and adjacent to the rotating connecting part 1. A first limiting cavity 11 is provided on the side of the movable part 21 near the movable part 21. The movable part 21 cooperates with the first limiting cavity 11 to restrict the rotation of the rotating connecting part 1, thereby restricting the rotating shaft 100 from driving the rotating body to rotate, so as to lock the rotating body.

[0061] In one embodiment, a plurality of trapezoidal-shaped locking blocks are spaced apart on the circumferential surface of the movable member 21. Correspondingly, the first limiting cavity 11 includes a first circular cavity and a plurality of spaced first locking grooves disposed around and communicating with the first circular cavity. When the movable member 21 moves into the first limiting cavity 11, the locking blocks engage with the first locking grooves. Since the movable member 21 can only move axially along the rotating shaft 100 and cannot rotate, the rotating connector 1 cannot rotate under the force of the movable member 21. In other embodiments, the specific structure of the locking blocks may include, but is not limited to, other shapes such as triangles.

[0062] In one embodiment, such as Figure 2 , Figures 5-7 As shown, the rotation limiting assembly 2 also includes a fixing member 22. A second limiting cavity 221 is provided on the side of the fixing member 22 closest to the movable member 21. The rotating connecting member 1 is fitted to the side of the fixing member 22 closest to each other. The first limiting cavity 11 and the second limiting cavity 221 are joined to form a sliding cavity that restricts the rotation of the movable member 21, and the depth of the first limiting cavity 11 is less than the thickness of the movable member 21. The shape of the second limiting cavity 221 is the same as that of the first limiting cavity 11, except that the depth of the second limiting cavity 221 is greater than or equal to the thickness of the movable member 21. The fixed member 22 is fixed to the support device 200 of the rotating body and cannot rotate or move axially. The opening end face of the first limiting cavity 11 and the opening end face of the second limiting cavity 221 of the rotating connector 1 fit together to form a closed sliding cavity. The movable member 21 can move axially within the sliding cavity. The depth of the first limiting cavity 11 is less than the thickness of the movable member 21. Thus, even if the movable member 21 moves to abut against the bottom of the first limiting cavity 11, part of the movable member 21 is still located within the second limiting cavity 221. At this time, the second limiting cavity 221 restricts the rotation of the movable member 21, the movable member 21 restricts the rotation of the rotating connector 1, and the rotating connector 1 restricts the rotation of the rotating shaft 100. When the movable member 21 moves completely away from the rotating connector 1 into the second limiting cavity 221, the rotating connector 1 is no longer restricted by the movable member 21 and can rotate relative to the fixed member 22, but the rotating connector 1 still remains in contact with the fixed member 22.

[0063] Of course, in other embodiments, only the movable part 21 can be provided, and the second limiting cavity 221 can be directly provided on the support device 200 of the rotating body to restrict the rotation of the movable part 21.

[0064] Specifically, the movable component 21 is configured as a cylindrical block, and the fixed component 22 includes a cuboid fixed block and a cylindrical fixed block adapted to the shape of the movable component 21. A second limiting cavity 221 is provided on one side of the cylindrical fixed block, and an arc-shaped groove is provided at the upper end of the cuboid fixed block. The cylindrical fixed block is placed in the arc-shaped groove, and after the cylindrical fixed block is placed in the arc-shaped groove, there is still some space on the side near the movable component 21 for positioning the movable component 21, so as to realize the assembly of the movable component 21 and the fixed component 22. The cuboid fixed block is fixedly connected to the support device 200 of the rotating body by fastening screws.

[0065] Furthermore, the movable component 21 is provided with a central hole 211, and a support sleeve 224 is provided at the center of the cylindrical fixed block. The movable component 21 is sleeved on the support sleeve 224 through the central hole 211, and the rotating shaft 100 passes through the support sleeve 224 and is fixed to the rotating connector 1. The support sleeve 224 isolates the rotating shaft 100 from the movable component 21, allowing the movable component 21 to move axially relative to the rotating shaft 100 without rotating with it. The design of the support sleeve 224, through mechanical isolation, motion decoupling, and structural optimization, achieves independent control of axial movement and rotational motion, while improving the stability, durability, and safety of the limit unlocking device.

[0066] In one embodiment, such as Figure 2 and Figure 8 As shown, the unlocking component 3 is connected to the movable part 21. Pressing the unlocking component 3 causes the movable part 21 to move away from the rotating connector 1, disengaging the movable part 21 from the first limiting cavity 11 and releasing the rotation restriction of the rotating shaft 100, allowing the rotating body to rotate. This limiting and unlocking device for the rotating body locks the rotating shaft 100 by setting a rotation limiting component 2 that restricts the rotation of the rotating connector 1, which is fixedly connected to the rotating shaft 100. This increases the locking strength of the rotating shaft 100 and improves the stability of the rotating body's fixed position. Unlocking is as simple as pressing the unlocking component 3, making it convenient and suitable for unlocking rotating bodies in small spaces.

[0067] Furthermore, the rotation limiting assembly 2 also includes a first elastic element 23, which is located on the side of the movable member 21 away from the rotating connector 1. The first elastic element 23 provides a driving force for the movable member 21 to move towards the rotating connector 1. Pressing the unlocking assembly 3 causes the movable member 21 to move away from the rotating connector 1, and the first elastic element 23 is subjected to a compressive force. When the pressing force applied to the unlocking assembly 3 is removed, the movable member 21 moves towards the rotating connector 1 under the elastic restoring force of the first elastic element 23, cooperating with the first limiting cavity 11 to achieve automatic locking of the rotating shaft 100 without other operations. This improves the convenience of unlocking and locking the rotating shaft 100 and saves operating space, thus meeting the need for angle fixation and adjustment of the rotating body in a small space.

[0068] Specifically, continue to refer to Figure 6 The movable part 21 is also provided with a spring cavity 214 on the side near the second limiting cavity 221. The spring cavity 214 and the central hole 211 are arranged radially apart along the movable part 21 and a central column is formed in the middle. The first elastic element 23 is a spring, which is sleeved on the outer periphery of the central column. One end of the spring is connected to the bottom of the spring cavity 214, and the other end is connected to the bottom of the second limiting cavity 221.

[0069] Continue to refer to one embodiment Figure 2 , Figure 3 and Figure 8 The limit unlocking device also includes a cover 5, and the unlocking component 3 includes a push button 31. The cover 5 is placed on the rotating connector 1 and the fixing component 22. The push button 31 is located on the side of the rotating connector 1 away from the rotating limit component 2, and one end of the push button 31 can enter the sliding cavity and connect with the movable component 21.

[0070] The cover 5 has a first shaft through hole 51 on the side near the push button 31. The push button 31 is movably inserted through the first shaft through hole 51. Pressing the push button 31 pushes the movable part 21 to move away from the rotating connector 1. When the rotating shaft 100 is locked, the push button 31 is at least partially located outside the cover 5. When it is necessary to unlock the rotating shaft 100, pressing the push button 31 causes it to enter the cover 5 through the first shaft through hole 51 and push the movable part 21 to move away from the first limiting cavity 11, thereby disengaging the movable part 21 from the first limiting cavity 11 and unlocking the rotating shaft 100.

[0071] The cover 5 is open on the side away from the rotating connector 1 and at the bottom. The cover 5 docks with the support device 200 and can enclose the rotating connector 1 and the rotation limiting component 2 in a closed space. The support device 200 and the cover 5 have a second shaft through hole on the side wall opposite to the side wall where the first shaft through hole 51 is located. The first connecting shaft 101 of the rotating shaft 100 cooperates with the second shaft through hole through the bushing 6 so that when the rotating shaft 100 rotates relative to the cover 5 and the support device 200, the friction is reduced, the support device 200 is prevented from wearing out quickly, and the service life of the support device 200 is extended.

[0072] In one embodiment, such as Figure 9 and Figure 10 As shown, the rotating connector 1 is provided with a limiting communication port 12 that communicates with the first limiting cavity 11. A pushing tooth 311 is provided on one side of the push button 31. The pushing tooth 311 passes through the limiting communication port 12 and enters the sliding cavity. When the push button 31 is pressed, the pushing tooth 311 can abut against the movable part 21 and push the movable part 21 to move away from the rotating connector 1. By setting the pushing tooth 311 to enter the sliding cavity, the opening area of ​​the rotating connector 1 near the push button 31 is reduced, ensuring the strength of the rotating connector 1 and preventing damage caused by external force when the rotating connector 1 is restricted from rotation. At the same time, the rotating connector 1 drives the push button 31 to rotate with it through the pushing tooth 311, preventing the position of the limiting communication port 12 from changing after the rotating connector 1 rotates with the rotating shaft 100. When the rotating shaft 100 is unlocked again by pushing the button 31, the pushing tooth 311 and the limiting communication port 12 cannot be aligned and inserted, resulting in the inability to unlock.

[0073] Specifically, multiple push teeth 311 are spaced apart along the circumference of the push button 31, and multiple limiting communication ports 12 are spaced apart along the circumference of the rotating connector 1. Multiple push teeth 311 are inserted into multiple limiting communication ports 12 in a one-to-one correspondence. By setting multiple push teeth 311 to push the movable part 21, the uniformity of the axial force on the movable part 21 is ensured, preventing the movable part 21 from being misaligned and damaged during movement.

[0074] Continue to refer to Figure 2 To ensure that the push button 31 will not detach from the cover 5 when subjected to a force that moves it away from the rotating connector 1, a limiting boss 52 is provided on the inner side wall of the cover 5 near the push button 31. A limiting flange 313 is provided at the end of the push button 31 near the rotating connector 1. Push teeth 311 are spaced apart circumferentially along the limiting flange 313. The limiting flange 313 abuts against the limiting boss 52, which can limit the push button 31 from continuing to move away from the rotating connector 1. The limiting flange 313 abuts against the side wall of the rotating connector 1, which can limit the push button 31 from continuing to move towards the rotating connector 1.

[0075] Furthermore, a first limit switch 312 is provided circumferentially on the push button 31. The first limit switch 312 can selectively extend out of the outer peripheral wall of the push button 31 to abut against the side wall of the cover 5 to restrict the movement of the push button 31; or retract into the push button 31 to disengage from the side wall of the cover 5. The setting of the first limit switch 312 can prevent the push button 31 from being accidentally touched, causing the rotating shaft 100 to unlock, thus further ensuring the stability of the locking of the rotating shaft 100.

[0076] Specifically, the first limit switch 312 includes a first pressing post 3121 and a first support spring 3122. A first mounting hole 314 is provided on the outer peripheral wall of the push button 31. A support cylinder is provided in the inner cavity of the push button 31. A connecting post is provided on the support cylinder. One end of the first support spring 3122 is sleeved on the connecting post and connected to the cylinder wall of the support cylinder. The other end is connected to the first pressing post 3121. Under the support of the first support spring 3122, the first pressing post 3121 extends out of the outer peripheral wall of the push button 31 through the first mounting hole 314. Pressing the first pressing post 3121 compresses the first support spring 3122 and retracts into the inner cavity of the push button 31 through the first mounting hole 314.

[0077] In one embodiment, such as Figures 11-13As shown, the unlocking component 3 includes a rotary button 32 and a traction member 33. The rotary button 32 is rotatably positioned at any position on the support device 200 of the rotating component. One end of the traction member 33 is fixed to the movable component 21, and the other end is fixed to the rotary button 32. Pressing the rotary button 32 causes it to rotate, which in turn drives the traction member 33 to pull the movable component 21 away from the rotating connector 1. The rotary button 32 is connected to the movable component 21 via the traction member 33 and can be installed at any position on the support device 200 of the rotating component, making it convenient for special users (such as users with hand disabilities who need to operate with their feet or users who are short in stature) to use.

[0078] In this embodiment, the hinge 100 can be unlocked by either pushing the button 31 or rotating the button 32, allowing users to choose freely according to their needs, providing greater flexibility and wider applicability. Furthermore, the pushing button 31 and rotating button 32 are independent operations, effectively avoiding failure rates and reducing after-sales costs.

[0079] Of course, in other embodiments, only the push button 31 or only the rotation button 32 may be provided.

[0080] Specifically, the traction component 33 includes a traction rope 331 and fixed posts 332 at both ends of the traction rope 331. The movable component 21 is provided with a first fixed groove 212, and the rotary button 32 is provided with a second fixed groove 321. The fixed component 22 is provided with a guide groove 222 and a through groove 223 that are interconnected. One end of the fixed post 332 of the traction rope 331 is located in the first fixed groove 212, and the other end of the fixed post 332 passes through the through groove 223 and is located in the second fixed groove 321. The guide groove 222 is used to restrict and guide the traction rope 331. The traction rope 331, with one end fixed to the movable component 21, passes through the fixed component 22, and the other end is fixed to the rotary button 32, so that when the rotary button 32 is rotated, it can pull the movable component 21 to move. By providing a through groove 223 on the fixing member 22, the fixing post 332 can pass through the fixing member 22. The guide groove 222 plays a guiding and limiting role for the traction rope 331. During the process of rotating the rotary button 32 to pull the traction rope 331, the traction rope 331 can only move along the extension direction of the guide groove 222, so as to avoid the traction rope 331 shaking and causing the movable part 21 to deviate during the movement, and thus get stuck with the cavity wall of the sliding cavity and be unable to move.

[0081] Specifically, the first fixing groove 212 is located at the end of the movable member 21 near the rotating connector 1 and communicates with the end face. The movable member 21 is also provided with a first extension groove 213 that communicates with the first fixing groove 212 and extends axially to the end of the movable member 21 away from the rotating connector 1 and communicates with the center hole 211. This allows the traction rope 331 to extend along the first extension groove 213 to the fixing member 22 after the fixing post 332 is engaged in the first fixing groove 212, and then enter the guide groove 222 through the through groove 223. The groove 223 is located at the bottom of the second limiting cavity 221, and the guide groove 222 is located on the outer wall of the fixed member 22 away from the movable member 21, extending from the cylindrical fixed block to the bottom of the cuboid fixed block. The width of the guide groove 222 on the cuboid fixed block gradually increases from the end near the cylindrical fixed block to the bottom of the cuboid fixed block, so as to leave a certain amount of room for the traction rope 331 to move, and to facilitate the extension of the traction rope 331 to be fixed with the second fixing groove 321.

[0082] The rotary button 32 is also provided with a second extension groove 324 that communicates with the second fixing groove 321. The second extension groove 324 is connected to the end of the rotary button 32 near the fixing member 22, so that the traction rope 331 can enter the second extension groove 324 and extend to the second fixing groove 321, fixing the fixing post 332 at the other end of the traction rope 331 in the second fixing groove 321. One side of the second fixing groove 321 is connected to one side wall of the rotary button 32, so that the fixing post 332 can enter the second fixing groove 321.

[0083] Furthermore, the second extension groove 324 is configured as an arc shape to increase the tension of the traction rope 331. The second extension groove 324 is arranged around a cylindrical protrusion to form an arc-shaped second extension groove 324, and the second fixing groove 321 is located at the bottom of the protrusion.

[0084] In one embodiment, continue to refer to Figure 1 and Figure 11 A second limit switch 322 is provided on one side of the rotary button 32, and a limit block 201 is provided on the support device 200 of the rotating body. The second limit switch 322 can selectively extend the rotary button 32 to abut against the limit block 201 to restrict the rotation of the rotary button 32, or retract the rotary button 32 to disengage from the limit block 201. The setting of the second limit switch 322 can prevent the rotating shaft 100 from being unlocked due to accidental contact with the rotary button 32, further ensuring the stability of the locking of the rotating shaft 100 and improving the safety of the rotating body.

[0085] Specifically, the second limit switch 322 is located on one side of the second extension groove 324, and the limit block 201 is fixed to the center position of the protrusion by fastening screws. The second limit switch 322 includes a second pressing post 3221 and a second support spring 3222. The rotary button 32 is provided with a second mounting hole 323. One end of the second support spring 3222 is connected to the bottom of the second mounting hole 323, and the other end is connected to the second pressing post 3221. Under the support of the second support spring 3222, the second pressing post 3221 extends out of the second mounting hole 323 and abuts against the limit block 201. When the second pressing post 3221 is pressed, the second pressing post 3221 compresses the second support spring 3222 and retracts into the rotary button 32 through the second mounting hole 323.

[0086] Furthermore, wedge-shaped guide blocks are provided on opposite sides of the second pressing column 3221, and correspondingly, guide grooves are provided in opposite directions in the second mounting hole 323. The wedge-shaped guide blocks cooperate with the guide grooves to guide the movement of the second pressing column 3221, making pressing easier.

[0087] This embodiment also provides a table, including a support device 200 and a tabletop. The tabletop is rotatable relative to the support device 200. The tabletop, as a rotating body, is connected to the support device 200 via the aforementioned limiting and unlocking device for the rotating body. The support device 200 includes a support unit 200, and the tabletop rotates relative to the support device 200, which can meet the user's support needs at different angles. For example, when the tabletop is used as a drawing board, the artist can quickly adjust the angle of the tabletop as needed, ensuring the stability of the tabletop during drawing.

[0088] The table provided in this embodiment can achieve stability of the desktop after the desktop angle is adjusted, and can quickly unlock the desktop in a small space between closely spaced tables, enabling more rapid and convenient adjustment of the desktop angle.

[0089] Example 2:

[0090] like Figure 14 and Figure 15 As shown, this embodiment also provides a multi-functional table, including a support device 200 and a flip-top table 300. The flip-top table 300 can rotate relative to the support device 200. One side of the flip-top table 300 is configured as a writing surface 301, and the other side is configured as a display screen 302. The flip-top table 300, as a rotating body, is connected to the support device 200 through the aforementioned limiting and unlocking device for the rotating body. This ensures the stability of the flip-top table 300 in different application scenarios and allows for quick unlocking to adjust its use in different scenarios, improving user convenience and user experience.

[0091] The multifunctional table provided in this embodiment can be a multifunctional school desk or a multifunctional lectern, used in classrooms to meet the needs of multifunctional teaching; or it can be a study table for home use, etc.

[0092] The support device 200 of the multifunctional desk includes support legs 202 and support base 203. There are two support legs 202, which are arranged opposite each other on both sides of the flip tabletop 300. One end of the support leg 202 is connected to the pivot 100, and the other end is connected to the support base 203. The rotary button 32 can be located at any height of the support leg 202 or on the support base 203.

[0093] Example 3:

[0094] This embodiment provides a smart terminal, including a support device 200 and a display screen. The display screen can rotate relative to the support device 200. The display screen, as a rotating body, is connected to the support device 200 through the aforementioned limiting and unlocking device for the rotating body.

[0095] The smart terminal provided in this embodiment can be used in office meetings or in the home, serving as an entertainment and learning center for the whole family.

[0096] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A limiting and unlocking device for a rotating body, wherein the rotating body is connected to a rotating shaft (100); characterized in that, The limit unlocking device includes: Rotary connector (1) is fixedly sleeved on the rotating shaft (100); The rotation limiting assembly (2) includes a movable part (21), which is slidably sleeved on the rotating shaft (100) and adjacent to the rotating connector (1). The rotating connector (1) has a first limiting cavity (11) on the side near the movable part (21). The movable part (21) cooperates with the first limiting cavity (11) to limit the rotation of the rotating connector (1). The unlocking component (3) is connected to the movable part (21). Pressing the unlocking component (3) will cause the movable part (21) to move away from the rotating connector (1), so that the movable part (21) is disengaged from the first limiting cavity (11).

2. The limiting and unlocking device for a rotating body according to claim 1, characterized in that, The rotation limiting assembly (2) further includes a first elastic element (23), which is located on the side of the movable element (21) away from the rotating connector (1). The first elastic element (23) can provide the movable element (21) with a driving force to move towards the rotating connector (1).

3. The limiting and unlocking device for a rotating body according to claim 1, characterized in that, The rotation limiting assembly (2) further includes a fixing member (22). The fixing member (22) has a second limiting cavity (221) on the side close to the movable member (21). The rotation connecting member (1) is fitted to the side close to the fixing member (22). The first limiting cavity (11) and the second limiting cavity (221) are connected to form a sliding cavity that restricts the rotation of the movable member (21). The depth of the first limiting cavity (11) is less than the thickness of the movable member (21).

4. The limiting and unlocking device for a rotating body according to claim 3, characterized in that, The limiting unlocking device also includes a cover (5), the unlocking component (3) includes a push button (31), the cover (5) covers the rotating connector (1) and the fixing component (22), the push button (31) is located on the side of the rotating connector (1) away from the rotating limiting component (2), and one end of the push button (31) can enter the sliding cavity and connect with the movable component (21); The cover (5) has a first shaft through hole (51) on the side near the push button (31). The push button (31) is movably inserted through the first shaft through hole (51). When the push button (31) is pressed, the push button (31) pushes the movable part (21) to move away from the rotating connector (1).

5. The limiting and unlocking device for a rotating body according to claim 4, characterized in that, The rotating connector (1) is provided with a limiting communication port (12) that communicates with the first limiting cavity (11). The push button (31) is provided with a push tooth (311) on one side. The push tooth (311) passes through the limiting communication port (12) and enters the sliding cavity. When the push button (31) is pressed, the push tooth (311) can abut against the movable part (21) and push the movable part (21) to move away from the rotating connector (1).

6. The limiting and unlocking device for a rotating body according to claim 5, characterized in that, The push teeth (311) are spaced apart along the circumferential direction of the push button (31), and the limiting communication ports (12) are spaced apart along the circumferential direction of the rotating connector (1). The multiple push teeth (311) are inserted into the multiple limiting communication ports (12) one by one.

7. The limiting and unlocking device for a rotating body according to claim 4, characterized in that, The push button (31) is provided with a first limit switch (312) in the circumferential direction. The first limit switch (312) can selectively extend out of the outer peripheral wall of the push button (31) and abut against the side wall of the cover (5) to restrict the movement of the push button (31); or retract into the push button (31) and disengage from the side wall of the cover (5).

8. The limiting and unlocking device for a rotating body according to claim 3 or 4, characterized in that, The unlocking component (3) includes a rotary button (32) and a traction member (33). The rotary button (32) is rotatably positioned at any position on the support device (200) of the rotating member. One end of the traction member (33) is fixed to the movable member (21), and the other end is fixed to the rotary button (32). When the rotary button (32) is pressed, the rotary button (32) rotates and drives the traction member (33) to pull the movable member (21) away from the rotating connector (1).

9. The limiting and unlocking device for a rotating body according to claim 8, characterized in that, The traction component (33) includes a traction rope (331) and fixed posts (332) at both ends of the traction rope (331). The movable component (21) is provided with a first fixed groove (212), and the rotary button (32) is provided with a second fixed groove (321). The fixed component (22) is provided with a guide groove (222) and a through groove (223) that are interconnected. The fixed post (332) at one end of the traction rope (331) is located in the first fixed groove (212), and the fixed post (332) at the other end passes through the through groove (223) and is located in the second fixed groove (321). The guide groove (222) is used to restrict and guide the traction rope (331).

10. The limiting and unlocking device for a rotating body according to claim 8, characterized in that, A second limit switch (322) is provided on one side of the rotary button (32), and a limit block (201) is provided on the support device (200) of the rotating body. The second limit switch (322) can selectively extend the rotary button (32) to abut against the limit block (201) to restrict the rotation of the rotary button (32); or retract the rotary button (32) to disengage from the limit block (201).

11. A table, comprising a support device (200) and a tabletop, the tabletop being rotatable relative to the support device (200), characterized in that, The desktop, acting as the rotating body, is connected to the support device (200) via a limiting and unlocking device for the rotating body as described in any one of claims 1-10.

12. A multi-functional table, comprising a support device (200) and a flip-top table (300), the flip-top table (300) being rotatable relative to the support device (200), one side of the flip-top table (300) being configured as a writing surface (301), and the other side being configured as a display screen (302), characterized in that, The flip-top (300) is connected to the support device (200) as the rotating body via the limiting and unlocking device of the rotating body as described in any one of claims 1-10.

13. A smart terminal, comprising a support device (200) and a display screen, the display screen being rotatable relative to the support device (200), characterized in that, The display screen, as the rotating body, is connected to the support device (200) via the limiting and unlocking device of the rotating body as described in any one of claims 1-10.

Images