Locking mechanism and push button switch
The push-button switch with a rotating hook design solves the problem of easy breakage of the buckle, enabling stable connection and low-risk operation during disassembly, and improving the product's service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHANGHAI UPUN IND CONTROL SYST
- Filing Date
- 2022-11-30
- Publication Date
- 2026-06-23
AI Technical Summary
The existing push-button switches are prone to breakage of the clips during disassembly, rendering the product unusable.
It adopts a rotating hook design, which achieves locking through the interference fit of the first hook and the second hook, avoiding direct prying of the hook part, and releasing the lock by rotating the hook.
This reduces the risk of hook breakage and increases the product's lifespan.
Smart Images
Figure CN115798973B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of push-button switch technology, and more particularly to a locking mechanism and a push-button switch. Background Technology
[0002] A push-button switch is a switch that uses a button to actuate a transmission mechanism, causing the moving contact to connect or disconnect with the stationary contact, thus switching the circuit. A push-button switch typically includes a contact base, a connector, and a button. The contact base houses the contact, and the button is mounted on the connector. The connector and contact base are secured together by a snap-fit mechanism. Disassembling a push-button switch requires using a pointed tool to pry and deform the snap-fit on the contact base to detach it from the connector. However, this method of relying on snap-fit deformation can easily lead to breakage if excessive force is applied or if there are molding defects at the base of the snap-fit, rendering the push-button switch unusable and rendering the product unusable. Summary of the Invention
[0003] The purpose of this invention is to provide a locking mechanism and a push-button switch that can solve the problem that the clips of existing push-button switches are prone to breakage during disassembly, thus rendering the push-button switch unusable.
[0004] To achieve the above objectives, the following technical solution is provided:
[0005] A locking mechanism is provided for locking a first body and a second body. The locking mechanism includes a first hook and a second hook disposed opposite to each other. The first hook and the second hook are rotatably disposed on the first body. The first hook has a first end and a second end that rotate synchronously about a first axis. The first end is provided with a first hook portion. The second hook has a third end and a fourth end that rotate synchronously about a second axis. The third end is provided with a second hook portion. The locking mechanism has a locked state in which the first hook portion and the second hook portion are close to each other and hooked onto the second body, and an open state in which the first hook portion and the second hook portion are far apart to release the lock.
[0006] The fourth end of the second hook is provided with a groove. In the locked state, the second end of the first hook is located in the groove, and the two are interference-fitted.
[0007] As an alternative to the above-mentioned locking mechanism, the second end of the first hook has an arc-shaped structure, and the groove is an arc-shaped slot.
[0008] As an alternative to the above-mentioned locking mechanism, both the first hook and the second hook are L-shaped structures; the first hook portion is located at the free end of the short side of the L-shaped structure, the second end is located at the free end of the long side of the L-shaped structure, and the first axis is located at the connection between the short side and the long side of the L-shaped structure; the second hook portion is located at the free end of the short side of the L-shaped structure, the groove is located at the free end of the long side of the L-shaped structure, and the second axis is located at the connection between the short side and the long side of the L-shaped structure.
[0009] As an alternative to the locking mechanism described above, the fourth end of the second hook is further provided with an extension body, which extends away from the second axis from the end of the groove, and the sidewall of the extension body smoothly transitions with the groove wall.
[0010] As an optional solution to the above-mentioned locking mechanism, the locking mechanism further includes a first limiting boss and a second limiting boss. The first limiting boss and the second limiting boss are used to protrude from the first body. The first limiting boss is located below the first hook, and the second limiting boss is located below the second hook. When the first hook rotates to the point where its bottom end abuts against the top end of the first limiting boss, the second hook also rotates to the point where its bottom end abuts against the top end of the second limiting boss, so as to limit the relative angle between the first hook and the second hook in the open state or the locked state.
[0011] As an optional solution to the above-mentioned locking mechanism, one of the first limiting boss and the first hook is provided with a first limiting surface, and the other is provided with a first abutting surface and a second abutting surface arranged at an angle. In the locked state, the first abutting surface abuts against the first limiting surface, and in the open state, the second abutting surface abuts against the first limiting surface.
[0012] One of the second limiting boss and the second hook is provided with a second limiting surface, and the other is provided with a third abutting surface and a fourth abutting surface arranged at an angle. In the locked state, the third abutting surface abuts against the second limiting surface, and in the open state, the fourth abutting surface abuts against the second limiting surface.
[0013] As an alternative to the above-mentioned locking mechanism, the second end of the first hook is provided with a notch, which is formed by a circular through groove and a linear through groove. The center of the circular through groove coincides with the center of the arc structure at the second end, and the linear through groove extends radially along the arc structure to the end point of the arc structure.
[0014] As an alternative to the above-mentioned locking mechanism, the locking mechanism includes two hook pairs, each hook pair including a first hook and a second hook disposed opposite to each other. The two hook pairs, including a first hook pair and a second hook pair, are respectively disposed on both sides of the first body along the thickness direction. The first hook of the first hook pair is connected to the second hook of the second hook pair, and the second hook of the first hook pair is connected to the first hook of the second hook pair.
[0015] As an alternative to the above-mentioned locking mechanism, the first hook of the first hook pair and the second hook of the second hook pair are connected by a first connecting shaft. The first connecting shaft passes through and is rotatably disposed in the first body, and the axis of the first connecting shaft coincides with the first axis.
[0016] The second hook of the first hook pair is connected to the first hook of the second hook pair by a second connecting shaft. The second connecting shaft passes through and is rotatably disposed on the first body, and the axis of the second connecting shaft coincides with the second axis.
[0017] A push-button switch includes the locking mechanism described in any of the above claims, and further includes a button, a connecting base, and a contact base, wherein the contact base is the first main body, the connecting base is the second main body, and the button is disposed on the connecting base.
[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:
[0019] The rotation of the two hooks brings the first and second hook parts closer together for hooking, locking the first and second bodies together. Simultaneously, the other ends of the two hooks without hooking parts gradually form an interference fit. The interference fit between the second end of the first hook and the groove causes them to press and restrain each other, ensuring the two hooks remain stably locked. To release the lock, simply rotate the two hooks in opposite directions, moving them away from each other and releasing the hooking on the second body. The second end of the first hook and the groove of the second hook also change position as the hook rotates, until the interference fit is released. This rotating hook design can be used in push-button switches to connect the connector and contact base. Furthermore, during disassembly, there is no need to directly pry the hook parts, greatly reducing the risk of hook breakage and improving product lifespan. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the locking mechanism in an embodiment of the present invention;
[0021] Figure 2 This is an exploded view of the locking mechanism in an embodiment of the present invention;
[0022] Figure 3 This is a front view of the locking mechanism in an embodiment of the present invention;
[0023] Figure 4 This is a schematic diagram of the first and second bodies locked together in an embodiment of the present invention;
[0024] Figure 5 This is a schematic diagram of the first and second bodies being released from locking in an embodiment of the present invention;
[0025] Figure 6 This is a schematic diagram of a push-button switch according to an embodiment of the present invention.
[0026] Figure label:
[0027] 100. Locking mechanism; 200. First body; 300. Second body; 400. Pointed tool; 500. Contact seat; 600. Connecting seat; 700. Button;
[0028] 101. First hook pair; 102. Second hook pair; 103. First axis; 104. Second axis; 105. Third connecting shaft; 106. Fourth connecting shaft; 601. Slot;
[0029] 10. First hook; 20. Second hook; 30. First limiting boss; 40. Second limiting boss; 50. First connecting shaft; 60. Second connecting shaft;
[0030] 11. First hook part; 12. Notch; 13. First abutting surface; 14. Second abutting surface; 21. Second hook part; 22. Groove; 23. Extension body; 24. Third abutting surface; 25. Fourth abutting surface; 31. First limiting surface; 41. Second limiting surface; 42. Third limiting surface;
[0031] 121. Circular through groove; 122. Linear through groove; 231. Fifth contact surface. Detailed Implementation
[0032] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0033] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.
[0034] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0035] In the description of this invention, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.
[0036] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.
[0037] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0038] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.
[0039] This embodiment provides a locking mechanism for locking a first body and a second body. In one embodiment, the first body and the second body are respectively the contact seat and the connecting seat of a push-button switch. The locking mechanism is disposed on the contact seat to achieve a fixed connection between the contact seat and the connecting seat. In other embodiments, the first body and the second body can also be other components that need to be locked. No specific limitation is made here. This embodiment mainly describes its application in a push-button switch.
[0040] refer to Figure 1-3 The locking mechanism 100 includes a first hook 10 and a second hook 20 disposed opposite to each other. The first hook 10 and the second hook 20 are rotatably mounted on the first body 200. The first hook 10 has a first end and a second end that rotate synchronously about a first axis 103, and the first end is provided with a first hook portion 11. The second hook 20 has a third end and a fourth end that rotate synchronously about a second axis 104, and the third end is provided with a second hook portion 21. (Reference) Figure 4 and Figure 5 The locking mechanism 100 has a locked state in which the first hook portion 11 and the second hook portion 21 are close to each other and hooked onto the second body 300, and an open state in which the first hook portion 11 and the second hook portion 21 are far apart to release the lock. Further, refer to... Figure 2 and Figure 4 The fourth end of the second hook 20 is provided with a groove 22. In the locked state, the second end of the first hook 10 is located in the groove 22, and the two are interference-fitted.
[0041] For each hook, whenever its hooking part rotates around the corresponding axis, the other end of the hook also rotates accordingly. When the two hooks rotate, causing the first hooking part 11 and the second hooking part 21 to move closer together for hooking, the first body 200 and the second body 300 are locked together. The other ends of the two hooks without hooking parts gradually form an interference fit. The interference fit between the second end of the first hook 10 and the groove 22 causes them to press against each other and restrain each other, ensuring that the two hooks are stably locked. When it is necessary to release the lock, simply force the two hooks to rotate in opposite directions, and the two hook parts can move away from each other, releasing the hooking on the second body 300. At the same time, the second end of the first hook 10 and the groove 22 of the second hook 20 also change position with the rotation of the corresponding hooks until the interference fit between them is released. For specific implementation, refer to Figure 5Simply use a pointed tool 400 to press firmly against the fourth end of the second hook 20, and the two hooks will rotate in opposite directions. (Reference) Figure 6 This rotating hook design can be used in push-button switches to connect the connector 600 and the contact seat 500. This eliminates the need for direct prying of the hook during disassembly, significantly reducing the risk of breakage and extending product lifespan. Optionally, the pointed tool 400 can be a flathead screwdriver with a flat tip that can fully engage with the second hook 20. Alternatively, the pointed tool 400 can be any other structure that ensures stable engagement with the second hook 20.
[0042] In the open state, the second end of the first hook 10 and the groove 22 can have a partial or complete clearance fit. (Reference) Figure 4 When a locking operation is required, press the hook part of the hook firmly to bring the two hook parts close to each other, so that the second end of the first hook 10 and the groove 22 are in an interference fit state.
[0043] Specifically, refer to Figure 2 The first axis 103 and the second axis 104 are parallel to each other and spaced apart. The first body 200 is a plate-like structure. The first axis 103 and the second axis 104 extend along a first direction (i.e., the X direction in the figure) and are perpendicular to the first body 200. Here, the first direction is the thickness direction of the first body 200. Further, the first axis 103 and the second axis 104 are located in the same horizontal plane and are spaced apart along a second direction (i.e., the Y direction in the figure). The first direction is perpendicular to the second direction, that is, the two hook parts are closer to each other or further apart in the second direction.
[0044] Furthermore, the second end of the first hook 10 has an arc-shaped structure, and the groove 22 is an arc-shaped groove. In the locked state, there is an interference fit between the end face of the second end of the first hook 10 and the side wall of the groove 22. Since both the second end of the first hook 10 and the groove 22 rotate with the corresponding hook, they are designed as arc-shaped structures, so that the relative movement between them can remain relatively smooth within a certain range of rotation. Moreover, within the limited range of rotation, the arc-shaped structure allows the second end to be limited by the side wall of the groove 22, so that it always remains within the groove 22 and does not leave the groove 22. It can even be supported by the groove wall of the groove 22 in the open state. At this time, the first hook 10 can only follow the second hook 20, which helps to ensure the stability and reliability of the relative movement of the two hooks.
[0045] Optionally, both the first hook 10 and the second hook 20 are L-shaped structures. The first hook portion 11 is located at the free end of the short side of the L-shaped structure, and the second end is located at the free end of the long side of the L-shaped structure. The first axis 103 is located at the connection between the short and long sides of the L-shaped structure. The second hook portion 21 is located at the free end of the short side of the L-shaped structure, the groove 22 is located at the free end of the long side of the L-shaped structure, and the second axis 104 is located at the connection between the short and long sides of the L-shaped structure. The L-shaped structure makes the lever arm of the end of the hook without the hook portion larger than the lever arm of the end with the hook portion, making unlocking operations easier.
[0046] refer to Figure 1 and Figure 3 The fourth end of the second hook 20 is further provided with an extension 23. The extension 23 extends from the end of the groove 22 in a direction away from the second axis 104. The sidewall of the extension 23 smoothly transitions with the groove wall of the groove 22 to avoid interfering with the relative rotation between the second end of the first hook 10 and the groove 22. For specific unlocking operations, refer to... Figure 5 The pointed tool 400 is used to drive the second hook 20 by pressing against the extension body 23, making it more operable. Furthermore, in the open state, the second end of the first hook 10 can be supported on the extension body 23, ensuring that the first hook 10 will not detach from the second hook 20.
[0047] Continue to refer to Figure 1 and Figure 3 A notch 12 is provided at the second end of the first hook 10 to provide deformation space. Since the second end of the first hook 10 forms an interference fit with the groove 22 during locking, the second end will be compressed, and the notch 12 provides this deformation space. Specifically, the notch 12 is formed by a circular through groove 121 and a linear through groove 122. The center of the circular through groove 121 coincides with the center of the arc-shaped structure at the second end, and the linear through groove 122 extends radially along the arc-shaped structure to its endpoint. Setting the notch 12 as a combination of the circular through groove 121 and the linear through groove 122 allows the second end to have a larger deformation space. The size of the circular through groove 121 can be adaptively changed as needed, while extending the linear through groove 122 to the endpoint of the arc-shaped structure makes it easier for the second end to be compressed, thus providing sufficient deformation. Specifically, both the circular through groove 121 and the linear through groove 122 penetrate the first hook 10 along its thickness direction. Here, the thickness direction of the first hook 10 is also the first direction.
[0048] Further, refer to Figure 1 and Figure 2The locking mechanism 100 further includes a first limiting boss 30 and a second limiting boss 40, which protrude from the first body 200. The first limiting boss 30 is located below the first hook 10, and the second limiting boss 40 is located below the second hook 20. When the first hook 10 rotates to the point where its bottom end abuts against the top end of the first limiting boss 30, the second hook 20 also rotates to the point where its bottom end abuts against the top end of the second limiting boss 40, thereby limiting the relative angle between the first hook 10 and the second hook 20 in the open or locked state. That is, by setting a limiting mechanism, the angle of rotation of the hooks around the first axis 103 and the second axis 104 is limited, avoiding an excessively large opening angle or an excessively small locking angle, so that the locking mechanism 100 moves within a predetermined range. Furthermore, both the first limiting boss 30 and the second limiting boss 40 protrude from the first body 200 along a first direction.
[0049] Specifically, refer to 4 and Figure 5 One of the first limiting boss 30 and the first hook 10 is provided with a first limiting surface 31, and the other is provided with a first abutting surface 13 and a second abutting surface 14 arranged at an included angle. In the locked state, the first abutting surface 13 abuts against the first limiting surface 31, and in the open state, the second abutting surface 14 abuts against the first limiting surface 31; that is, the rotation range of the first hook 10 is limited by the abutting contact between the surfaces. In this embodiment, the first abutting surface 13 and the second abutting surface 14 are provided on the first hook 10, and the first limiting surface 31 is provided on the first limiting boss 30. More specifically, the first limiting surface 31 is a plane provided on the top of the first limiting boss 30, and the first abutting surface 13 and the second abutting surface 14 are two adjacent planes provided on the bottom end of the first hook 10.
[0050] Similar to the engagement between the first hook 10 and the first limiting boss 30, one of the second limiting boss 40 and the second hook 20 is provided with a second limiting surface 41, and the other is provided with a third abutting surface 24 and a fourth abutting surface 25 arranged at an angle. In the locked state, the third abutting surface 24 abuts against the second limiting surface 41, and in the open state, the fourth abutting surface 25 abuts against the second limiting surface 41; that is, the rotation range of the second hook 20 is limited by the abutting contact between the surfaces. In this embodiment, the third abutting surface 24 and the fourth abutting surface 25 are provided on the second hook 20, and the second limiting surface 41 is provided on the second hook 20. Specifically, the second limiting surface 41 is a plane provided on the top of the second limiting boss 40, and the third abutting surface 24 and the fourth abutting surface 25 are two adjacent planes provided on the bottom end of the second hook 20.
[0051] For example, the included angle between the first abutting surface 13 and the second abutting surface 14 is an obtuse angle of 165°, and the included angle between the third abutting surface 24 and the fourth abutting surface 25 is also an obtuse angle of 165°. That is, the rotation range of the first hook 10 and the second hook 20 is 15°. In this way, the locking mechanism 100 opens a total of 30° from the locked state to the open state.
[0052] Of course, in other embodiments, a limiting surface can also be provided on the first hook 10 or the second hook 20, and two abutting surfaces at an angle can be provided on the limiting protrusion. The angle between the two abutting surfaces can also be adjusted adaptively.
[0053] Further, refer to Figure 5 For the second hook 20 with the extension body 23, a third limiting surface 42 can be provided on one of the extension body 23 and the second limiting boss 40, and a fifth abutment surface 231 can be provided on the other. In the locked state, the third limiting surface 42 and the fifth abutment surface 231 abut against each other, improving the limiting effect of the second limiting boss 40 on the second hook 20. In this embodiment, the fifth abutment surface 231 is provided on the extension body 23, and the third limiting surface 42 is provided on the second limiting boss 40; in another embodiment, the third limiting surface 42 is provided on the extension body 23, and the fifth abutment surface 231 is provided on the second limiting boss 40.
[0054] In one embodiment, one first hook 10 and one second hook 20 are each provided and located on one side of the first body 200 along the thickness direction. Optionally, refer to Figure 1 and Figure 2 The locking mechanism 100 includes two hook pairs, each hook pair including a first hook 10 and a second hook 20 arranged opposite to each other. The two hook pairs include a first hook pair 101 and a second hook pair 102, which are respectively located on both sides of the first body 200 along the thickness direction. The first hook 10 of the first hook pair 101 is connected to the second hook 20 of the second hook pair 102, and the second hook 20 of the first hook pair 101 is connected to the first hook 10 of the second hook pair 102. In this way, the second hook pair 102 and the second hook pair 102 can move synchronously and keep their actions consistent. In the locked state, the hooking parts of the two different types of hooks in the different hook pairs can jointly hook the second body 300 from both sides of the thickness direction of the first body 200, which improves the stability of locking.
[0055] In practical implementation, the hook portion of the hook can be made to protrude from the rest of the parts along the first direction, that is, the hook portion is made thicker than the other parts. In this way, the hook portions of two different types of hooks can fit together, forming a hook portion that spans the first body 200 along the first direction, increasing the contact area with the second body 300 and improving the locking effect. Furthermore, the locking mechanism 100 is also provided with two first limiting bosses 30 and two limiting bosses 40, respectively, to limit the hooks on different sides.
[0056] Specifically, refer to Figure 2 The first hook 10 of the first hook pair 101 and the second hook 20 of the second hook pair 102 are connected by a first connecting shaft 50, which passes through and rotatably mounts the first body 200, and the axis of the first connecting shaft 50 coincides with the first axis 103. The second hook 20 of the first hook pair 101 and the first hook 10 of the second hook pair 102 are connected by a second connecting shaft 60, which passes through and rotatably mounts the first body 200, and the axis of the second connecting shaft 60 coincides with the second axis 104. In specific implementation, one end of the first connecting shaft 50 and the second connecting shaft 60 is fixed to one of the hooks, and the other end is connected to the other hook by riveting after assembly. More specifically, the first hook portion 11 of the first hook 10 of the first hook pair 101 and the second hook portion 21 of the second hook 20 of the second hook pair 102 are connected by a third connecting shaft 105; the second hook portion 21 of the second hook 20 of the first hook pair 101 and the first hook portion 11 of the first hook 10 of the second hook pair 102 are connected by a fourth connecting shaft 106; the connection method of the third connecting shaft 105 and the fourth connecting shaft 106 is similar to that of the first connecting shaft 50 and the second connecting shaft 60, except that they do not penetrate the first body 200 and do not rotate relative to the first body 200. The arrangement of the third connecting shaft 105 and the fourth connecting shaft 106 further ensures the synchronicity of the operation of the corresponding two hook portions.
[0057] refer to Figure 6 This embodiment also provides a push-button switch, including the locking mechanism 100 described above, and further including a button 700, a connecting seat 600, and a contact seat 500. The contact seat 500 is a first main body 200, the connecting seat 600 is a second main body 300, and the button 700 is disposed on the connecting seat 600. In specific implementation, the locking mechanism 100 is disposed on the contact seat 500, which can realize the locking between the contact seat 500 and the connecting seat 600. Since this push-button switch includes the locking mechanism 100 described above, it naturally also has the beneficial effects of the locking mechanism 100, which will not be elaborated here.
[0058] Furthermore, a slot 601 is provided at the bottom of the connecting seat 600, and a locking mechanism 100 is provided on the upper part of the contact seat 500. In the locked state, the first hook 10 and the second hook 20 are hooked into the slot 601. In specific implementation, the first hooking part 11 of the first hook 10 and the second hooking part 21 of the second hook 20 are simultaneously hooked into the slot 601, pressing against the bottom of the slot 601 to achieve locking; when the two hooking parts are far apart and in an open state, the hooking parts are disengaged from the slot 601, and the connecting seat 600 can be detached from the contact seat 500.
[0059] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.
Claims
1. A locking mechanism for locking a first body (200) and a second body (300), characterized in that, The locking mechanism includes a first hook (10) and a second hook (20) arranged opposite to each other. The first hook (10) and the second hook (20) are rotatably disposed on the first body (200). The first hook (10) has a first end and a second end that rotate synchronously around a first axis (103). The first end is provided with a first hook portion (11). The second hook (20) has a third end and a fourth end that rotate synchronously around a second axis (104). The third end is provided with a second hook portion (21). The locking mechanism has a locked state in which the first hook portion (11) and the second hook portion (21) are close to each other and hooked onto the second body (300), and an open state in which the first hook portion (11) and the second hook portion (21) are far apart from each other to release the lock. The fourth end of the second hook (20) is provided with a groove (22). In the locked state, the second end of the first hook (10) is located in the groove (22), and the two are interference-fitted.
2. The locking mechanism according to claim 1, characterized in that, The second end of the first hook (10) is an arc-shaped structure, and the groove (22) is an arc-shaped groove.
3. The locking mechanism according to claim 1, characterized in that, Both the first hook (10) and the second hook (20) are L-shaped structures; the first hook part (11) is located at the free end of the short side of the L-shaped structure, the second end is the free end of the long side of the L-shaped structure, and the first axis (103) is located at the connection between the short side and the long side of the L-shaped structure; the second hook part (21) is located at the free end of the short side of the L-shaped structure, the groove (22) is located at the free end of the long side of the L-shaped structure, and the second axis (104) is located at the connection between the short side and the long side of the L-shaped structure.
4. The locking mechanism according to claim 1, characterized in that, The fourth end of the second hook (20) is also provided with an extension (23), which extends from the end of the groove (22) in a direction away from the second axis (104), and the sidewall of the extension (23) smoothly transitions with the groove wall of the groove (22).
5. The locking mechanism according to claim 1, characterized in that, The locking mechanism further includes a first limiting boss (30) and a second limiting boss (40). The first limiting boss (30) and the second limiting boss (40) are protruding from the first body (200). The first limiting boss (30) is located below the first hook (10), and the second limiting boss (40) is located below the second hook (20). When the first hook (10) rotates to the point where its bottom end abuts against the top end of the first limiting boss (30), the second hook (20) also rotates to the point where its bottom end abuts against the top end of the second limiting boss (40) to limit the relative angle between the first hook (10) and the second hook (20) in the open state or the locked state.
6. The locking mechanism according to claim 5, characterized in that, One of the first limiting boss (30) and the first hook (10) is provided with a first limiting surface (31), and the other is provided with a first abutting surface (13) and a second abutting surface (14) arranged at an angle. In the locked state, the first abutting surface (13) abuts against the first limiting surface (31), and in the open state, the second abutting surface (14) abuts against the first limiting surface (31). One of the second limiting boss (40) and the second hook (20) is provided with a second limiting surface (41), and the other is provided with a third abutting surface (24) and a fourth abutting surface (25) arranged at an angle. In the locked state, the third abutting surface (24) abuts against the second limiting surface (41), and in the open state, the fourth abutting surface (25) abuts against the second limiting surface (41).
7. The locking mechanism according to claim 2, characterized in that, The second end of the first hook (10) is provided with a notch (12), which is formed by a circular through groove (121) and a linear through groove (122). The center of the circular through groove (121) coincides with the center of the arc structure at the second end, and the linear through groove (122) extends radially along the arc structure to the end point of the arc structure.
8. The locking mechanism according to claim 1, characterized in that, The locking mechanism includes two hook pairs, each hook pair including a first hook (10) and a second hook (20) disposed opposite to each other. The two hook pairs include a first hook pair (101) and a second hook pair (102), which are respectively disposed on both sides of the first body (200) along the thickness direction. The first hook (10) of the first hook pair (101) is connected to the second hook (20) of the second hook pair (102), and the second hook (20) of the first hook pair (101) is connected to the first hook (10) of the second hook pair (102).
9. The locking mechanism according to claim 8, characterized in that, The first hook (10) of the first hook pair (101) and the second hook (20) of the second hook pair (102) are connected by a first connecting shaft (50). The first connecting shaft (50) passes through and is rotatably disposed on the first body (200), and the axis of the first connecting shaft (50) coincides with the first axis (103). The second hook (20) of the first hook pair (101) and the first hook (10) of the second hook pair (102) are connected by a second connecting shaft (60). The second connecting shaft (60) passes through and is rotatably disposed on the first body (200), and the axis of the second connecting shaft (60) coincides with the second axis (104).
10. A push-button switch, characterized in that, The locking mechanism includes any one of claims 1 to 9, and further includes a button (700), a connecting seat (600), and a contact seat (500), wherein the contact seat (500) is the first body (200), the connecting seat (600) is the second body (300), and the button (700) is disposed on the connecting seat (600).