Locking mechanism, traffic lock, U-lock
By introducing a locking mechanism that links a slider and an elastic element into the handcuff lock, the fan beam is automatically pushed out, solving the problem of the inconvenience of manually rotating the fan beam in existing handcuff locks, and achieving convenient unlocking and stable locking.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG ZHONGLI GRP
- Filing Date
- 2026-04-30
- Publication Date
- 2026-06-05
AI Technical Summary
The existing unlocking method of handcuff locks requires users to manually rotate the fan beam, which is inconvenient and affects the user experience.
Design a locking mechanism that automatically pushes the fan beam out through the linkage of the slider and the elastic element, reducing manual operation steps, and stabilizes the position of the locking element through the limit structure, simplifying the unlocking and locking process.
It improves the convenience of unlocking operations, enhances the user experience, strengthens the stability and security of the locking mechanism, simplifies the locking process, and prevents unauthorized damage.
Smart Images

Figure CN224326135U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to locks, specifically locking mechanisms, traffic locks, and handcuff locks. Background Technology
[0002] A handcuff lock is a type of lock that resembles a handcuff. Existing locks require manual operation to rotate the lever after unlocking. When using this type of lock, one hand needs to hold the lock body and the other hand to turn the key. After unlocking, the lever needs to be rotated. This unlocking method is inconvenient and affects the user experience. Utility Model Content
[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a locking mechanism, traffic lock, and handcuff lock that can improve the convenience of unlocking operation and enhance the user experience.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a locking mechanism, comprising an unlocking component, a locking element, and a fan beam.
[0005] It also includes a slider, which uses an elastic element to maintain the tendency of the fan beam to pop out;
[0006] A locking groove is provided on the fan beam at the position corresponding to the locking component, and the locking groove cooperates with the locking component to lock the fan beam.
[0007] The unlocking component has a driving part positioned corresponding to the locking component. This driving part moves the locking component to the unlocking position to unlock the fan beam. After the unlocking component unlocks, the slider pops out, pushing the fan beam out for user convenience.
[0008] As a further improvement of this utility model, after the slider pushes the fan beam out, it is positioned at the corresponding locking member, thereby restricting the locking member from moving to the locked position. The slider blocks the locking member, preventing it from interfering with the fan beam's re-locking. After the fan beam is inserted into place, the slider is pushed open, allowing the locking member to re-lock the fan beam.
[0009] As a further improvement of this utility model, the locking member is kept moving towards the locking position by an elastic member. After the locking member aligns with the position of the locking groove, it automatically inserts into the locking groove under the action of the elastic member, thus locking the sash beam.
[0010] As a further improvement of this utility model, one end of the locking member corresponding to the locking groove is completely located in the locking groove; or
[0011] The locking element's end, corresponding to at least one end of the locking groove, is fully located within the groove, and this end transitions to the side of the locking element via a bevel. To allow the fan beam to be smoothly inserted and locked, a space is typically provided. With the fan beam locked, this design prevents unauthorized individuals from using tools to push the locking element to unlock it or damage the internal structure within this space. The beveled transition also creates slippage, making it difficult for tools to push the locking element.
[0012] As a further improvement of this utility model, the locking member has an abutment surface on one side corresponding to the driving part, and an active space for the driving part to reset on the other side. When the driving part performs the unlocking action with the unlocking component, it drives the locking member to the unlocking position through the abutment surface. This design allows the abutment surface to serve as the mating surface for unlocking, while the active space allows the unlocking component to reset, for example, by turning the key in the opposite direction and pulling it out. Moreover, due to the cooperation between the locking member and the slider, the locking member remains in a ready state after the unlocking component resets until the fan beam is inserted into place.
[0013] A traffic lock is also provided, including a housing and a locking mechanism disposed in the housing; the locking mechanism is a locking mechanism as described in any of the above.
[0014] As a further improvement of this utility model, an inner liner is also provided inside the housing. The slider and unlocking component are located in the inner liner, and a slide rail is provided on the inner liner corresponding to the position of the locking component. A limiter is provided in the slide rail, and a groove is provided on the locking component corresponding to the position of the limiter. The limiter cooperates with the groove wall to limit the movement stroke of the limiter. The inner liner can be made of a higher strength material, which also facilitates the installation of the components. The cooperation of the groove and the limiter can limit the movement stroke of the locking component, making the locking component work more stably.
[0015] As a further improvement of this utility model, the limiting member is integrally formed with the inner lining. The limiting member designed in this way can act as a reinforcing rib to compensate for the strength reduction caused by the slide rail designed to allow the locking member to move.
[0016] As a further improvement of this invention, a limiting part is provided inside the housing to restrict the maximum movement of the slider. This design makes the movement of the slider more stable and prevents it from coming out of the housing.
[0017] A handcuff lock is also provided, which adopts the structure of a traffic lock as described in any of the above.
[0018] The beneficial effects of this utility model are that, by setting up a slider and elastic element, after the unlocking component drives the locking component to unlock, the slider can automatically push the fan beam to pop out, reducing the operation steps of manually rotating the fan beam, thereby improving the convenience of the unlocking operation and enhancing the user experience. Attached Figure Description
[0019] Figure 1 This is a front view of the locking structure of this utility model;
[0020] Figure 2 This is a three-dimensional schematic diagram of the locking structure of this utility model;
[0021] Figure 3 for Figure 2 Enlarged view of part A in the image;
[0022] Figure 4 This is a schematic diagram of the internal structure of the traffic lock of this utility model;
[0023] Figure 5 for Figure 4 Enlarged view of part B in the image;
[0024] Figure 6 This is a schematic diagram of the internal structure of the traffic lock of this utility model from another perspective;
[0025] Figure 7 for Figure 6 Enlarged view of section C in the image;
[0026] Figure 8 This is a schematic diagram of the external structure of the handcuff lock of this utility model.
[0027] Reference numerals: 1. Unlocking component; 11. Drive unit; 2. Locking component; 21. Angled transition; 22. Abutment surface; 23. Movement space; 24. Groove; 3. Fan beam; 31. Lock groove; 4. Slider; 5. Housing; 6. Liner; 61. Slide track; 62. Limiting component; 7. Limiting part. Detailed Implementation
[0028] The present invention will now be described in further detail with reference to the embodiments shown in the accompanying drawings.
[0029] Reference Figure 1-8 As shown, the locking mechanism of this embodiment includes an unlocking component 1, a locking component 2, a fan beam 3, and a slider 4. The slider 4 maintains the tendency of pushing the fan beam 3 to pop out through an elastic element. A locking groove 31 is provided on the fan beam 3 at the position corresponding to the locking component 2. The locking groove 31 cooperates with the locking component 2 to lock the fan beam 3. A driving part 11 is provided on the unlocking component 1 at the position corresponding to the locking component 2. The driving part 11 is used to drive the locking component 2 to move to the unlocking position to unlock the fan beam 3.
[0030] The slider 4 and the elastic element are installed in the lock body. After the fan beam 3 is inserted into the lock body, the slider 4 forms an abutment relationship with the fan beam 3. The elastic element applies an elastic force to the slider 4 towards the fan beam 3, causing the slider 4 to have a tendency to push the fan beam 3 out in the unlocking direction. A lock groove 31 is opened on the fan beam 3, and the locking element 2 is set corresponding to the lock groove 31. When the fan beam 3 is inserted into the lock body to the locked position, the locking element 2 is inserted into the lock groove 31 under the action of external force or elasticity, and cooperates with the side wall of the lock groove 31 to limit the fan beam 3, thereby preventing the fan beam 3 from coming out and realizing locking. The unlocking component 1 is provided with a drive part 11 corresponding to the locking element 2. The drive part 11 forms a transmission or abutment relationship with the locking element 2. When the unlocking component 1 performs the unlocking action, the drive part 11 drives the locking element 2 to disengage from the lock groove 31 or move to the unlocking position, releasing the locking constraint on the fan beam 3. At this point, the slider 4, under the action of the elastic element, pushes the fan beam 3 outward, causing the fan beam 3 to extend at least partially out of the lock body. The user can unlock the lock without manually moving the fan beam 3, thus improving the convenience of the unlocking operation and enhancing the user experience. The slider 4 and fan beam 3 can be connected by end-face contact, and both ends of the elastic element can respectively abut against the slider 4 and the lock body or inner liner 6.
[0031] In order to facilitate maintaining the unlocked state of the locking element 2 after unlocking, in one optional scheme, the slider 4 pushes the fan beam 3 out and is positioned at the corresponding locking element 2 position, so as to restrict the movement of the locking element 2 to the locked position.
[0032] The slider 4 not only functions to push the fan beam 3 out, but also occupies the space between the locking member 2 and the fan beam 3 or aligns with the movement path of the locking member 2 after it is popped out. When the fan beam 3 is popped out, the slider 4 stops at the position corresponding to the locking member 2, forming a physical block, preventing the locking member 2 from moving toward the fan beam 3 to the locking position inserted into the lock groove 31. This design ensures that the locking member 2 is always restricted to the unlocked position or intermediate position by the slider 4 before the fan beam 3 is re-inserted into place, preventing the locking member 2 from resetting prematurely and hindering the re-insertion of the fan beam 3. The slider 4 and the locking member 2 can cooperate by abutting or limiting. When the user needs to relock, the fan beam 3 is pushed into the lock body, the end or side wall of the fan beam 3 abuts against the slider 4 and pushes the slider 4 to compress the elastic element and retract until the lock groove 31 on the fan beam 3 aligns with the locking member 2, the slider 4 completely clears the movement path of the locking member 2, and the locking member 2 can then move into the lock groove 31 to lock. This solution improves the stability of the locking mechanism in the unlocked state by using the linkage limiting effect of slider 4, reduces the malfunction of locking component 2, and improves the reliability of locking operation.
[0033] As an improved specific implementation, the locking member 2 maintains the tendency to move toward the locked position by means of an elastic member.
[0034] The locking element 2 is installed in the guide groove of the lock body or inner liner 6. One end of the locking element corresponds to the lock groove 31, and the other end or middle is connected to the elastic element. The elastic element applies an elastic force to the locking element 2 in the direction of the fan beam 3, so that the locking element 2 always tends to move towards the locking position. During the insertion of the fan beam 3 into the lock body, the end of the fan beam 3 abuts against the slider 4. As the fan beam 3 is pushed in, the fan beam 3 presses the slider 4 to overcome the elastic force of the elastic element and retract. When the lock groove 31 on the fan beam 3 moves to the position aligned with the locking element 2 with the insertion depth, the locking element 2 automatically inserts into the lock groove 31 under the action of the elastic element, completing the locking. During unlocking, the driving part 11 of the unlocking component 1 drives the locking element 2 to compress the elastic element and retract, disengaging it from the lock groove 31. This elastic reset design eliminates the need for additional driving of the locking element 2 during the locking operation, simplifying the locking steps, improving the automation level of the locking operation, and enhancing the user experience. The locking element 2 and the elastic element can be connected by a boss, and the other end of the elastic element can abut against the lock body or inner liner 6. The aforementioned elastic element can be a compression spring. Using this method, when the unlocking component 1 uses a mechanical lock cylinder, after unlocking, the unlocking component 1 can be reset, the key removed, and when relocking is required, simply inserting the sash beam 3 back into place will automatically lock the device.
[0035] In some options, one end of the locking member 2 corresponding to the locking groove 31 is completely located in the locking groove 31; or at least the end of the locking member 2 corresponding to the locking groove 31 is completely located in the locking groove 31, and this end is connected to the side of the locking member 2 by a bevel transition 21.
[0036] In the locked state, the end of the locking member 2 inserted into the lock groove 31 is completely contained within the lock groove 31, meaning its end face does not extend beyond the outer or inner circumferential surface of the fan beam 3, making the end of the locking member 2 flush with or recessed from the surface of the fan beam 3. This design eliminates the step between the end of the locking member 2 and the surface of the fan beam 3, reducing the possibility of unauthorized tools inserting and prying the locking member 2. In another embodiment, at least the end of the locking member 2 corresponding to the lock groove 31 is completely located within the lock groove 31, and this end transitions to the side of the locking member 2 via a ramp 21, which can be gradually inclined from the end face to the side. When an unauthorized tool attempts to insert and push the locking member 2 through the reserved gap between the fan beam 3 and the lock body, the tool end contacts the ramp and slides off along the ramp, making it difficult to apply a stable axial thrust to the locking member 2, thereby improving anti-pry performance and enhancing the security of the locking mechanism.
[0037] To further improve the transmission reliability between the unlocking component 1 and the locking component 2, in one optional scheme, the locking component 2 is provided with an abutment surface 22 on one side corresponding to the driving part 11, and an active space 23 is provided on the other side corresponding to the driving part 11 for the driving part 11 to reset. When the driving part 11 performs the unlocking action with the unlocking component 1, it drives the locking component 2 to move to the unlocking position through the abutment surface 22.
[0038] The driving part 11 of the unlocking component 1 is provided on one side of the locking component 2. The locking component 2 has a corresponding abutment surface 22, and the driving part 11 forms surface contact or line contact with the abutment surface 22. In the locked state, the driving part 11 and the abutment surface 22 remain in contact or close to each other. When the unlocking component 1 performs the unlocking action, the driving part 11 moves synchronously with the unlocking component 1 and pushes the abutment surface 22, driving the locking component 2 to overcome the elastic force of the elastic member and move to the unlocking position, disengaging from the lock groove 31. On the other side of the locking component 2 corresponding to the driving part 11, there is a movable space 23, which provides the driving part 11 with a movable margin when the unlocking component 1 is reset. When the unlocking component 1 moves in the reverse direction to reset, the driving part 11 retracts to the initial position. Due to the existence of the movable space 23, the driving part 11 will not drive the locking component 2 to move synchronously during the retraction process. The locking component 2 can remain in the unlocking position or be maintained in position by other limiting structures (such as the aforementioned slider 4) until the fan beam 3 is reinserted and triggers locking. This design decouples the reset state of the unlocking component 1 from the state of the locking component 2, improving the flexibility of the unlocking operation and enhancing the reliability of the fit between the unlocking component 1 and the locking component 2. The abutment surface 22 can be integrally formed with the body of the locking component 2, and the movable space 23 can be formed by creating a groove 24 in the inner liner 6 or the housing 5.
[0039] This embodiment also provides a traffic lock, including a housing 5 and a locking mechanism disposed in the housing 5; the locking mechanism adopts any of the above-mentioned locking mechanisms.
[0040] The housing 5 has an internal mounting cavity, within which the locking mechanism is installed. The fan beam 3 extends at least partially out of the housing 5 or forms an openable and closable annular structure with the housing 5. The housing 5 provides a mounting base and protection for the unlocking component 1, the locking component 2, the slider 4, and the elastic component. The locking mechanism can be fixed to the housing 5 by screws, clips, or riveting, and the fan beam 3 rotates with the housing 5.
[0041] To improve the stability of the locking member 2, in one optional embodiment, a liner 6 is provided inside the housing 5, the slider 4 and the unlocking component 1 are located in the liner 6, and a slide rail 61 is provided on the liner 6 corresponding to the position of the locking member 2. A limiting member 62 is provided in the slide rail 61, and a groove 24 is provided on the locking member 2 corresponding to the position of the limiting member 62. The limiting member 62 cooperates with the groove wall of the groove 24 to limit the movement stroke of the limiting member 62.
[0042] An inner liner 6 is added inside the housing 5. The inner liner 6 can be formed by injection molding, die casting, or machining and is fixed to the inner wall of the housing 5. The slider 4 and the unlocking component 1 are installed in corresponding mounting positions in the inner liner 6. The inner liner 6 provides sliding guidance for the slider 4 and positioning support for the unlocking component 1. A slide rail 61 is opened on the inner liner 6 at the position corresponding to the locking component 2. The locking component 2 can move back and forth along the slide rail 61. A limiting component 62 is provided in the slide rail 61, and a corresponding groove 24 is opened on the locking component 2. The limiting component 62 extends into the groove 24 and forms an abutment limit with the side walls or end walls of the groove 24. When the locking component 2 moves, the groove 24 slides relative to the limiting component 62. After the limiting component 62 abuts against the groove wall of the groove 24, it prevents the locking component 2 from continuing to move in the same direction, thereby limiting the maximum stroke of the locking component 2. This design prevents the locking component 2 from disengaging from the slide rail 61 or becoming misaligned due to excessive movement, improves the straightness and stability of the movement of the locking component 2, and improves the durability of the locking mechanism. The inner liner 6 and the housing 5 can be fastened together with screws.
[0043] Further optimization can be achieved by using the following method: the limiting component 62 and the inner liner 6 are integrally molded.
[0044] The limiting component 62 and the inner liner 6 are integrally molded. For example, during the injection molding or die casting of the inner liner 6, raised limiting ribs, blocks, or partitions can be directly formed on the sidewall of the slide rail 61. The integrally molded limiting component 62, as part of the inner liner 6 structure, eliminates the need for additional assembly processes, reducing the number of parts and assembly errors. Simultaneously, the limiting component 62 acts as a reinforcing rib in the slide rail 61, compensating for the localized weakening of the inner liner 6 caused by the opening of the slide rail 61, and improving the structural rigidity and deformation resistance of the inner liner 6 at the slide rail 61. The inner liner 6 can be made of zinc alloy, aluminum alloy, or high-strength engineering plastic, and is integrally molded using a mold.
[0045] In some options, the housing 5 is provided with a limiting part 7 to restrict the maximum movement of the slider 4.
[0046] A limiting part 7 is provided on the housing 5 or inner liner 6 corresponding to the movement path of the slider 4. When the slider 4 pushes the fan beam 3 out under the action of the elastic element, the slider 4 moves synchronously. When the slider 4 moves to the maximum stroke position, one end or side wall of the slider 4 abuts against the limiting part 7, and the limiting part 7 prevents the slider 4 from continuing to move in the same direction, thereby limiting the maximum stroke of the slider 4. This design prevents the slider 4 from excessively popping out under the action of the elastic element and detaching from the housing 5 or inner liner 6, and avoids the fan beam 3 from completely detaching from the housing 5, resulting in loss or damage. The limiting part 7 can be integrally formed with the housing 5 or inner liner 6, or it can be fixedly installed as an independent part. By limiting the stroke of the slider 4, the stability and safety of the slider 4's movement are improved, and the working reliability of the locking mechanism is improved.
[0047] This embodiment also provides a handcuff lock, which adopts the structure of any of the traffic locks described above.
[0048] The housing 5 of the handcuff lock adopts a ring or semi-ring structure similar to a handcuff, including two locking arms that can rotate or move relative to each other. The structure of the aforementioned traffic lock is integrated into the housing 5 of the handcuff lock. The locking mechanism is used to lock and unlock the fan beam 3 or locking arms of the handcuff lock.
[0049] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.
Claims
1. A locking mechanism, comprising an unlocking component, a locking element, and a fan beam, characterized in that, It also includes a slider, which uses an elastic element to maintain the tendency of the fan beam to pop out. A locking groove is provided on the fan beam at the position corresponding to the locking component, and the locking groove cooperates with the locking component to lock the fan beam. The unlocking component is provided with a driving part at the position corresponding to the locking component. The driving part is used to drive the locking component to the unlocking position to unlock the fan beam.
2. The locking mechanism according to claim 1, characterized in that, After the slider pushes the fan beam out, it is positioned at the corresponding locking element to restrict the locking element from moving to the locked position.
3. The locking mechanism according to claim 1 or 2, characterized in that, The locking element is maintained by an elastic element to move toward the locked position.
4. The locking mechanism according to claim 1, characterized in that, One end of the locking element corresponding to the lock groove is completely located within the lock groove; or The locking element has at least one end of the locking groove fully located in the locking groove, and the end of the locking element transitions to the side of the locking element via a bevel.
5. The locking mechanism according to claim 3, characterized in that, The locking member has an abutment surface on one side of the driving part and an active space for the driving part to reset on the other side of the driving part. When the driving part performs the unlocking action with the unlocking component, it drives the locking member to move to the unlocking position through the abutment surface.
6. A traffic lock, comprising a housing and a locking mechanism disposed within the housing; characterized in that, The locking mechanism is the locking mechanism described in any one of claims 1 to 5.
7. The traffic lock according to claim 6, characterized in that, The housing is also provided with an inner liner, the slider and the unlocking component are located in the inner liner, and a slide is provided on the inner liner at the position corresponding to the locking component. A limit component is provided in the slide, and a groove is provided on the locking component at the position corresponding to the limit component. The limit component cooperates with the groove wall to limit the movement stroke of the limit component.
8. The traffic lock according to claim 7, characterized in that, The limiting component is integrally formed with the inner lining.
9. The traffic lock according to claim 6, characterized in that, The housing is provided with a limiting part to restrict the maximum movement of the slider.
10. A handcuff lock, characterized in that, The handcuff lock adopts the structure of the traffic lock as described in any one of claims 6 to 9.