Damping buffer reset mechanism for lock rotating piece
By designing a damping buffer reset mechanism, and utilizing the surface contact friction limit of the damping block and damping groove, the problem of loud noise and large impact during the reset of the rotating parts of traditional locks is solved, achieving quiet and reliable handle operation.
Patent Information
- Application Number
- CN202520030768.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-07
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2035-01-07
AI Technical Summary
Traditional locks produce loud noise and significant impact when the rotating parts reset, affecting their lifespan and comfort.
A damping buffer reset mechanism is adopted, which uses surface contact or continuous stop friction to limit the movement. The design of damping blocks and damping grooves increases the contact surface and friction coefficient to achieve buffer reset.
It achieves a gentle and reliable handle rotation reset, reducing noise and improving user comfort and reliability.
Smart Images
Figure CN223661555U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a hardware lock, and more particularly to a damping buffer reset mechanism for the rotating parts of the lock. Background Technology
[0002] Locks are devices that serve a sealing function, including locks, keys, and their accessories. Generally, they are defined as "sealing devices that can only be opened with a key." Besides keys, locks can also be opened using light, electricity, magnetism, sound, and fingerprint signals. Locks are not only protective devices but also serve management and decorative purposes. In international exchanges, there is a custom of presenting a symbolic "key" as a gesture of friendship. Traditional locks rely on direct force to reset the handle after turning, or on a torsion spring for quick reset. This process is noisy and impactful, which can negatively affect the product's usability and lifespan. Utility Model Content
[0003] To address the shortcomings of existing technologies, this utility model provides a damping buffer reset mechanism for the rotating parts of locks.
[0004] To achieve the above objectives, the technical solution adopted by this utility model is: a damping buffer reset mechanism for a lock rotating component, comprising a rotating component for mounting a lock cylinder and connecting a handle, and a fixed component that is stationary relative to the rotating component, wherein the rotating component has an elastic rotation reset tendency relative to the fixed component, and the rotating component and the fixed component are limited by surface contact or continuous blocking friction in the relative rotation direction.
[0005] The rotating component has several damping blocks on the annular path, and the fixed component has damping grooves that slide in contact with the damping blocks.
[0006] The damping block has a contact slope on one side of the top and a contact edge on the other side of the top.
[0007] The damping groove is also provided with an auxiliary groove, and the top of the damping block has a sliding contact surface.
[0008] The contact ramp extends from the contact area of the damping block to the bottom of the damping block.
[0009] The damping block also has a secondary portion that is lower than the height of the contact area, and the secondary portion has a contact plane.
[0010] The damping groove forms a continuous annular structure along the circumference, and the auxiliary groove is located at the bottom of the damping groove.
[0011] The auxiliary grooves are evenly spaced or the spacing gradually decreases towards one side of the circumference.
[0012] The auxiliary groove is an isosceles trapezoidal structure.
[0013] The fastener is fixed in place by fasteners or integrally molded with the lock housing.
[0014] The beneficial effects of this utility model are as follows: The damping buffer reset mechanism for the rotating parts of locks provided by this utility model increases the contact surface and adjusts the friction coefficient to further improve the friction resistance and achieve the damping and slowing effect. This makes the handle rotation reset smooth and reliable, without hindering normal use. The operation is smooth, reduces impact, and can also effectively reduce noise, achieving the effect of a silent door lock, thus improving the comfort and reliability of use. Attached Figure Description
[0015] Figure 1 This is a top-view exploded view of Embodiment 1 of the present invention;
[0016] Figure 2 This is a bottom-view exploded structural diagram of Embodiment 1 of this utility model;
[0017] Figure 3 This is a schematic diagram of the rotating component structure in Embodiment 1 of this utility model;
[0018] Figure 4 This is a partially enlarged structural diagram of the rotating component in Embodiment 1 of this utility model;
[0019] Figure 5 This is a schematic diagram of the combined structure of Embodiment 2 of this utility model;
[0020] Figure 6 This is an exploded structural diagram of Embodiment 2 of the present invention. Detailed Implementation
[0021] Example 1: As Figures 1-4 As shown, a damping and buffering reset mechanism for a rotating component of a lock includes a rotating component 1 for mounting a lock cylinder and connecting a handle, and a fixed component 2 stationary relative to the rotating component 1. The rotating component 1 has an elastic rotational reset tendency relative to the fixed component 2. The rotating component 1 and the fixed component 2 are limited in their relative rotational direction through surface contact or continuous blocking friction. The rotating component 1 mounts the lock cylinder and connecting handle, and the fixed component 2 is fixedly connected to the upper or lower housing of the lock body. This is an existing technical method, and will not be elaborated or limited here. Based on the rotation of the rotating component 1 relative to the fixed component 2, the contact area between the two creates a damping effect. Unlike the assembly method of general smooth surface contact, the principle of surface contact friction or blocking is used here to achieve a damping effect in the action process.
[0022] The rotating component 1 has several damping blocks 3 arranged on a circular path, and the fixed component 2 has damping grooves 4 that slide in contact with the damping blocks 3. The damping grooves 4 provide ample space for assembly design. By designing multiple friction resistances through the number and layout of the damping blocks 3, the contact pressure is increased and the contact area is reduced, thus enhancing the damping effect. This is also the basic structure for enhancing friction resistance, and further design evolution can be based on it.
[0023] The damping block 3 has a contact slope 5 on one side of its top and a contact edge 6 on the other side of its top. The design of the contact slope 5 allows the reset force to be transferred to this surface, forming a certain reset resistance. Here, resistance can be formed through surface contact under the premise of varying depth of the damping groove 4, while the contact edge 6 forms a line contact with much less resistance. This also allows for almost no obstruction in the operating direction, while providing some resistance during reverse reset. However, in this embodiment, this is achieved through other structural forms.
[0024] The damping groove 4 is further provided with an auxiliary groove, and the top of the damping block 3 has a sliding contact surface 7. The contact slope 5 extends from the contact surface 7 of the damping block 3 to the bottom of the damping block 3. The damping block 3 also has a secondary portion 8 that is lower than the height of the contact surface 7, and the secondary portion 8 is provided with a contact plane 9. The damping groove 4 forms a continuous annular structure along the circumference, and the auxiliary groove is located at the bottom of the damping groove 4. In this embodiment, the contact plane 9 is opposite to the bottom surface of the contact damping groove 4, while the contact slope 5 contacts the inner wall of the auxiliary groove in the reset direction of the damping block 3. Figure 4 In addition, a contact plane 9 is designed to improve contact efficiency and reduce offset and vibration in order to enhance the stability of the damping.
[0025] The auxiliary grooves are evenly spaced or the spacing gradually decreases towards one side of the circumference. This ensures uniform damping or allows it to vary according to usage requirements, such as strong damping initially followed by gradual weakening, depending on actual application needs. The auxiliary grooves are isosceles trapezoidal structures, which do not hinder bidirectional movement. Combined with the structural features of the damping block 3, they can achieve significant hysteresis resistance in one direction. This is one embodiment, but it is by no means limited to it. The fixing component 2 is fixedly installed by fasteners or integrally molded with the lock housing. It can be assembled later during production or produced together with the plastic housing during processing, integrally molded with the upper or lower shell, which helps improve production and assembly efficiency and reduce costs.
[0026] Example 2: Different from Example 1, such as Figures 5-6As shown, the rotating component 1 and the fixed component 2 differ in their external shapes and structures, specifically in the adjustments made to the parts that are linked to other components. In this embodiment, the rotating component 1 passes through the fixed component 2 at its center, and unlike the hook shape of embodiment 1, the rotating component 1 adopts a straight structure. This embodiment is mainly designed to adapt to different assembly conditions and similar interlocking drive foundations. The aforementioned structure is more stable and reliable during operation, eliminating the need for excessive parts or auxiliary structures.
[0027] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and 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 this utility model. At the same time, the basic principles, main features, and advantages of this utility model have been shown and described above, which should be understood by those skilled in the art.
Claims
1. A damping buffer reset mechanism for a rotating component of a lock, comprising a rotating component for mounting a lock cylinder and connecting a handle, and a fixed component stationary relative to the rotating component, wherein the rotating component has an elastic rotational reset tendency relative to the fixed component, characterized in that, The rotating component and the fixed component are limited in the relative rotation direction by surface contact or continuous blocking friction.
2. The damping buffer reset mechanism for a lock rotating component as described in claim 1, characterized in that, The rotating component has several damping blocks on the annular path, and the fixed component has damping grooves that slide in contact with the damping blocks.
3. A damping buffer reset mechanism for a lock rotating component as described in claim 2, characterized in that, The damping block has a contact slope on one side of the top and a contact edge on the other side of the top.
4. A damping buffer reset mechanism for a lock rotating component as described in claim 3, characterized in that, The damping groove is also provided with an auxiliary groove, and the top of the damping block has a sliding contact surface.
5. A damping buffer reset mechanism for a lock rotating component as described in claim 4, characterized in that, The contact ramp extends from the contact area of the damping block to the bottom of the damping block.
6. A damping buffer reset mechanism for a lock rotating component as described in claim 4, characterized in that, The damping block also has a secondary portion that is lower than the height of the contact area, and the secondary portion has a contact plane.
7. A damping buffer reset mechanism for a lock rotating component as described in claim 4, characterized in that, The damping groove forms a continuous annular structure along the circumference, and the auxiliary groove is located at the bottom of the damping groove.
8. A damping buffer reset mechanism for a lock rotating component as described in claim 7, characterized in that, The auxiliary grooves are evenly spaced or the spacing gradually decreases towards one side of the circumference.
9. A damping buffer reset mechanism for a lock rotating component as described in claim 8, characterized in that, The auxiliary groove is an isosceles trapezoidal structure.
10. A damping buffer reset mechanism for a rotating component of a lock as described in claim 1, characterized in that, The fastener is fixed in place by fasteners or integrally molded with the lock housing.