Silent latch box assembly, lock and door
By incorporating connectors and limiting ribs into the silent latch assembly, the problems of bolt collision noise and silent pad detachment are resolved, thus achieving stability in the silent effect and a quieter lock.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG MINGMEN LOCKS IND
- Filing Date
- 2025-06-10
- Publication Date
- 2026-07-03
AI Technical Summary
Existing door locks tend to generate significant noise when locking, and the sound-dampening pads are easily pulled out or damaged during use, affecting the user experience.
The sound-absorbing pad is fixed to the box by setting a connector in the sound-absorbing box assembly. The length of the connector is greater than the length of the through hole to prevent the sound-absorbing pad from falling off under friction or static electricity. The connection stability is improved by combining the limiting rib and magnetic component.
It effectively reduces the collision noise between the bolt and the silent pad, prevents the silent pad from deforming or detaching during unlocking, maintains the silent effect, and improves the user experience of the lock.
Smart Images

Figure CN224452440U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of door lock technology, specifically to a silent latch box assembly, a lock, and a door. Background Technology
[0002] Door locks can be divided into a strike box assembly installed on the door frame and a lock body assembly installed on the door panel. The strike box has a square hole for accommodating the bolt. Once the bolt enters the square hole, the door lock can be locked.
[0003] However, existing door locks are usually made of metal. When locking, the bolt collides with the square hole, which can generate significant noise and negatively impact the user experience. Even when a sound-dampening pad is added inside the square hole to reduce collision noise, the end face of the bolt can easily attract the pad during unlocking, potentially causing it to be pulled out, deformed, or even damaged. The friction between the side of the bolt and the pad can also easily pull the pad out or cause it to deform or even damage. Utility Model Content
[0004] This utility model was made to solve the above-mentioned technical problems. Its purpose is to provide a silent buckle box assembly, which uses an additional connector to fix the silent pad to the buckle box, thus preventing the silent pad from being pulled out of the buckle box and affecting the entire buckle box assembly.
[0005] To achieve the above objectives, this utility model provides a silent buckle box assembly, including a buckle box with a mounting groove formed on one side and a through hole formed at the bottom of the mounting groove; a silent liner housed in the mounting groove, with a connecting portion passing through the through hole and located on the other side of the mounting groove on one side, and a mounting hole provided on the connecting portion; and a connector passing through the mounting hole and having a length greater than the length of the through hole.
[0006] Preferably, a fixing block is provided on the inner wall of the through hole, and the connecting part further includes a fixing hole, wherein the fixing block is installed in the fixing hole.
[0007] Preferably, the surface of the through hole that abuts against one end of the sound-silencing pad is an arc-shaped surface.
[0008] Preferably, a limiting rib is provided on the end face of the buckle box opposite to the arc-shaped surface, and the connector is confined within the limiting rib.
[0009] Preferably, the connector is a magnetic component.
[0010] Preferably, the device further includes a snap-on plate connected to the snap box, and the sound-absorbing pad is located between the snap-on plate and the snap box.
[0011] Preferably, the buckle plate further includes a connecting hole and a fixing bolt, the fixing bolt passing through the connecting hole and connecting to the buckle plate and the buckle box.
[0012] Preferably, the device further includes a decorative cover plate connected to the buckle plate. Both the decorative cover plate and the buckle plate include through holes. The sound-absorbing pad also includes a buffer groove, and the through holes communicate with the buffer groove.
[0013] Preferably, the sound-silencing pad further includes an extension that abuts against the sidewall of the through hole.
[0014] This utility model provides a lock, including a silent latch assembly and a lock body structure as described in any of the above claims, wherein the lock body structure includes a latch that can extend into or out of the silent latch assembly.
[0015] This utility model provides a door, including a door frame and a door leaf; and a lock as described above, wherein the lock is installed on the side wall of the door leaf, and the silent buckle box assembly is correspondingly installed on the door frame.
[0016] This utility model provides a silent latch assembly, including a latch, a silent pad, and a connector. One side of the latch has a mounting groove for accommodating the bolt in the lock body structure that mates with the silent latch assembly, enabling locking. A through hole is formed at the bottom of the mounting groove. The silent pad is housed in the mounting groove, and one side has a connecting portion passing through the through hole and located on the other side of the mounting groove. The connecting portion has a mounting hole, through which the connector passes and abuts against the latch. This prevents the silent pad from deforming due to friction or static electricity during unlocking, or from being pulled out of the latch and damaged, thus preventing it from providing a silent effect and affecting the overall silent latch assembly's performance in both locked and unlocked states. The connector's length is greater than the through hole's length to prevent it from falling out of the through hole, causing the silent pad to detach from the through hole and, with the bolt, from detaching from the mounting groove, thus affecting the overall silent latch assembly's performance. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of the silent buckle box assembly involved in one embodiment of the present utility model.
[0018] Figure 2 This is an exploded view of the silent buckle box assembly involved in one embodiment of the present utility model.
[0019] Figure 3 This is a schematic diagram of the buckle box in one embodiment of the present invention.
[0020] Figure 4 This is a schematic diagram of the structure of the sound-silencing pad involved in one embodiment of the present invention.
[0021] Figure 5 This is a cross-sectional view of a silent buckle box assembly according to one embodiment of the present utility model. Detailed Implementation
[0022] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be more comprehensive and complete, and will fully convey the concept of exemplary embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
[0023] Furthermore, the accompanying drawings are merely illustrative of this disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and therefore repeated descriptions of them will be omitted. It should be noted that in this disclosure, the terms "comprising," "configured with," and "set in" are used to indicate an open-ended inclusion, meaning that additional elements / components / etc. may exist besides those listed; the terms "first," "second," etc., are used only as labels and are not intended to limit the number or order of objects; the terms "center," "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, and 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, and therefore should not be construed as a limitation of this utility model.
[0024] Unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection 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.
[0025] This utility model provides a lock, including a silent snap box assembly and a lock body structure (not shown). The lock body structure includes a bolt (not shown), which can extend into or out of the silent snap box assembly to lock and unlock the lock. The bolt, used in conjunction with the silent snap box assembly, prevents the bolt from colliding with the snap box 1 during locking, thus avoiding excessive noise and ensuring a better user experience.
[0026] Therefore, this utility model discloses a silent buckle box assembly, please refer to... Figures 1 to 5By providing a silent pad 2 inside the silent latch assembly, the silent pad 2 is made of a relatively soft material, so that the lock tongue will not produce much noise when it collides with the silent pad 2, and the silent pad 2 can also absorb other noise generated when the lock tongue comes into contact with the silent latch assembly. Specifically, in some embodiments, the silent latch assembly includes a latch box 1, a silent pad 2 and a connector 3. A mounting groove 10 is formed on one side of the latch box 1 for accommodating the lock tongue in the lock body structure that cooperates with the silent latch assembly to complete locking. A through hole 11 is formed at the bottom of the mounting groove 10. The silent pad 2 is housed in the mounting groove 10. One side has a connecting portion 21 that passes through the through hole 11 and is located on the other side of the mounting groove 10. The connecting portion 21 has a mounting hole 22. The connector 3 passes through the mounting hole 22 and abuts against the latch box 1. This prevents the silent pad 2 from deforming due to friction or static electricity during unlocking, or from being pulled out of the latch box 1 and damaged, thus preventing it from providing a silent effect and affecting the overall silent latch box assembly's silent performance in both locked and unlocked states. The length of the connector 3 is greater than the length of the through hole 11 to prevent the connector 3 from falling out of the through hole 11, causing the silent pad 2 to detach from the through hole 11 and, driven by the bolt, from detaching from the mounting groove 10, thus affecting the overall silent latch box assembly's silent performance.
[0027] Understandably, the material of the sound-silencing pad 2 is usually rubber, soft rubber, foam, fiber or other composite materials. The properties of the above materials are usually relatively soft. When subjected to force in a specific direction, they can deform, but when subjected to force in other directions, they do not deform, which further ensures the stability of the connection between the sound-silencing pad 2 and the buckle box 1.
[0028] Furthermore, in some other embodiments, the length of the connector 3 is greater than the length of the mounting hole 22 to prevent the connector 3 from being too short and falling out of the mounting hole 22 when subjected to external force, thereby causing the soundproof pad 2 to separate from the buckle box 1.
[0029] In some embodiments, a fixing block 12 is provided on the inner wall of the through hole 11, and the connecting part 21 further includes a fixing hole 23. The fixing block 12 is installed in the fixing hole 23, which further ensures the stability of the connection between the buckle box 1 and the silent pad 2, and prevents the silent pad 2 from detaching from the buckle box 1 under the force of the locking tongue. The fixing block 12 abuts against the connecting block, which also ensures that the position of the connecting block between the buckle box 1 and the silent pad 2 remains unchanged, preventing relative movement between the buckle box 1 and the silent pad 2, thus affecting the stability of the connection between the buckle box 1 and the silent pad 2.
[0030] Furthermore, in order to ensure the connection effect between the connector 3 and the soundproof pad 2 and the snap box 1, in some embodiments, the surface of the through hole 11 that abuts against one end of the soundproof pad 2 is an arc-shaped surface, and the convex surface of the arc-shaped surface abuts against the connector 3. When the connector 3 is inserted into the mounting hole 22, the deformation force of the arc-shaped surface presses against the connector 3, which improves the fixing effect of the connector 3 and thus strengthens the connection effect between the connector 3 and the soundproof pad 2 and the snap box 1.
[0031] To ensure that the connector 3 will not shake due to external forces such as collisions when it is located at the end of the buckle box 1 away from the mounting groove 10, and thus detach from the mounting hole 22, in some embodiments, a limiting rib 13 is provided on the end face of the buckle box 1 away from the arc surface. The connector 3 is confined within the limiting rib 13, which prevents the connector 3 from falling out of the mounting hole 22 due to external forces, thus causing the buckle box 1 and the silent pad 2 to no longer be connected. At this time, the silent pad 2 is easy to deform or detach from the buckle box 1 under the action of the locking tongue, affecting the silent effect of the entire silent buckle box assembly.
[0032] Understandably, with the development of locks, magnetic locks have become the choice of more people to replace traditional mechanical locks. Therefore, in some embodiments, the connector 3 is a magnetic component, which ensures the connection effect between the buckle box 1 and the silent pad 2, while realizing the use of magnetic locks, further expanding the application scenarios of the silent buckle box assembly.
[0033] In some embodiments, the silent buckle box assembly further includes a buckle plate 4, which is snapped onto the buckle box 1. The silent pad 2 is located between the buckle plate 4 and the buckle box 1. By adding the buckle plate 4, the silent pad 2 is further fixed between the buckle box 1 and the buckle plate 4, which to a certain extent prevents the silent pad 2 from detaching from the buckle box 1 under the action of the locking tongue, thereby ensuring the overall silent effect of the silent buckle box assembly.
[0034] Understandably, in some embodiments, the buckle plate 4 also includes a connecting hole 41 and a fixing bolt 42. The fixing bolt 42 passes through the connecting hole 41 and connects to the buckle plate 4 and the buckle box 1, ensuring a stable connection between the buckle plate 4 and the buckle box 1. At the same time, the fixing bolt 42 applies a certain pressure to the sound-absorbing pad 2 by fastening the buckle plate 4, preventing the sound-absorbing pad 2 from falling out of the buckle box 1.
[0035] Furthermore, the connecting hole 41 is an oval hole, which allows the connection position of the buckle box 1 to be adjusted according to actual needs during installation, improving installation stability while affecting the size of the buckle box 1 itself. In addition, it also facilitates the addition of other decorative structures on the outside.
[0036] In some embodiments, the silent buckle box assembly further includes a decorative cover plate 5, which is connected to the buckle plate 4 and has the same shape as the buckle plate 4. The decorative cover plate 5 can be fixedly connected to the buckle plate 4 and the buckle box 1 by a snap fastener or by fixing bolts 42. The decorative cover plate 5 is located outside the buckle plate 4 and the buckle box 1, which to a certain extent prevents the buckle plate 4 and the buckle box 1 from directly contacting the outside world and thus being susceptible to corrosion due to external environmental factors. Both the decorative cover plate 5 and the buckle plate 4 include a through hole 6, and the silent pad 2 also includes a buffer groove. The through hole 6 communicates with the buffer groove. When the lock is locked, the bolt enters and abuts against the inner wall of the buffer groove, reducing the noise of the lock when locking and improving the overall silent buckle box assembly.
[0037] Furthermore, in some embodiments, the silent pad 2 also includes an extension 24 that abuts against the side wall of the through hole 6. This prevents the latch from colliding with the extension 24 when the latch moves and its edge accidentally comes into contact with the latch box 1, thereby reducing collision noise and enhancing the silent latch box assembly's silent effect.
[0038] This utility model provides a door, including a door frame, a door leaf, and the aforementioned lock. The lock is installed on the side wall of the door leaf, and the silent latch assembly is correspondingly installed on the door frame. This reduces the collision noise between the lock tongue and the latch box 1 when the door using the aforementioned lock and silent latch assembly is locked and unlocked, thereby improving the user experience.
[0039] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A silent clasp box assembly, characterized by, include: The buckle box has a mounting groove on one side, and a through hole is formed at the bottom of the mounting groove; A sound-absorbing pad is accommodated in the mounting groove, and a connecting portion is formed on one side of the pad, which passes through the through hole and is located on the other side of the mounting groove. The connecting portion is provided with a mounting hole. The connector is inserted through the mounting hole and its length is greater than the length of the through hole.
2. The silent buckle box assembly as described in claim 1, characterized in that, A fixing block is provided on the inner wall of the through hole, and the connecting part also includes a fixing hole, and the fixing block is installed in the fixing hole.
3. The silent buckle box assembly as described in claim 1, characterized in that, The surface of the through hole that abuts against one end of the sound-silencing pad is an arc-shaped surface.
4. The silent buckle box assembly as described in claim 3, characterized in that, The end face of the buckle box facing away from the arc-shaped surface is also provided with a limiting rib, and the connector is confined within the limiting rib.
5. The silent buckle box assembly as described in claim 4, characterized in that, The connector is a magnetic component.
6. The silent clutch assembly of claim 1 wherein, Also includes: A snap-on panel is connected to the snap-on box, and a sound-absorbing pad is located between the snap-on panel and the snap-on box.
7. The silent buckle box assembly as described in claim 6, characterized in that, The buckle plate also includes a connecting hole and a fixing bolt, the fixing bolt passing through the connecting hole and connecting to the buckle plate and the buckle box.
8. The silent clutch assembly of claim 6 wherein, Also includes: A decorative cover plate is connected to the buckle plate. Both the decorative cover plate and the buckle plate include through holes. The sound-absorbing pad also includes a buffer groove. The through holes communicate with the buffer groove.
9. The silent buckle box assembly as described in claim 8, characterized in that, The sound-absorbing pad also includes an extension that abuts against the sidewall of the through hole.
10. A lock, characterized in that Includes the silent latch box assembly and lock body structure as described in any one of claims 1-9, wherein, The lock body structure includes a latch that can extend into or out of the silent latch assembly.
11. A door characterized in that include: Door frame; Door leaf; The lock as described in claim 10 above, wherein the lock is installed on the side wall of the door leaf, and the silent buckle box assembly is correspondingly installed on the door frame.