A quiet door lock assembly

Abstract

The application discloses a mute door lock assembly and belongs to the technical field of locks. The mute door lock assembly comprises a lock body, a slanting lock tongue and a main lock column which are arranged on the lock body in an extendable mode, and a lock cylinder hole is formed in the lock body. The lock body comprises a lock body and a lock cover, the lock body and the lock cover are fixedly connected through screws, mounting holes are formed in the lock body and the lock cover, a mounting column is arranged between the lock body and the lock cover, screw holes are formed in the mounting column, the mounting column is opposite to the mounting holes, the screws are connected with the screw holes through the mounting holes, and the mounting of the lock body and the lock cover is realized. A mute structure is further arranged in the lock body. The mute door lock assembly has the beneficial effects that the first magnet and the second magnet are arranged, the second magnet generates a certain repulsive force on the first magnet when the first magnet moves to the limit position, the push plate is prevented from impacting the limiting structure, i.e., the lock body, and the impact sound is reduced.

Description

Technical Field

[0001] This application relates to the field of lock technology, and more specifically, to a silent door lock assembly. Background Technology

[0002] Currently, lock manufacturers are paying increasing attention to the noise reduction function of locks. Existing locks typically add a silencing sleeve at the connection between the bolt and the lock housing to reduce direct friction between them, thus achieving a certain degree of noise reduction. However, during the bolt's extension and retraction, the rapid movement causes it to collide with the limiting mechanism, producing a relatively loud noise, and a significant amount of noise still remains.

[0003] Therefore, a silent door lock assembly is needed to solve the above problems. Utility Model Content

[0004] The summary section of this application is intended to provide a brief overview of the concepts, which will be described in detail in the detailed description section below. This summary section is not intended to identify key or essential features of the claimed technical solutions, nor is it intended to limit the scope of the claimed technical solutions.

[0005] To address the technical problems mentioned in the background section, some embodiments of this application provide a silent door lock assembly, including: a lock body, on which a telescopic oblique bolt and a main lock pin are provided, and a lock cylinder hole is opened on the lock body; the lock body includes: a lock body and a lock cover, the lock body being fixedly connected to the lock cover by screws, mounting holes being opened on both the lock body and the lock cover, and a mounting post being provided between the lock body and the lock cover, the mounting post being provided with screw holes, the mounting post being directly opposite the mounting holes, and screws being connected to the screw holes through the mounting holes to realize the installation of the lock body and the lock cover; a silent structure is also provided in the lock body.

[0006] Furthermore, the silent structure includes: a mounting block fixedly installed inside the lock body, a first mounting groove located at the lock cylinder hole on the mounting block, a lock head transmission component installed in the first mounting groove, the lock head transmission component having teeth, the lock head transmission component being located at the lock cylinder hole, and the lock cylinder installed in the lock cylinder hole driving the lock head transmission component to rotate, two second mounting grooves also being opened on the first mounting groove, and transmission gears being rotatably installed in the second mounting grooves, both transmission gears meshing with the teeth on the lock head transmission component.

[0007] Furthermore, a third mounting groove is provided on the mounting block, and a locking pin push gear is rotatably installed in the third mounting groove. The locking pin push gear meshes with two transmission gears, and a push plate is slidably installed in the lock body. The main locking pin is fixedly connected to the push plate, and the movement of the push plate drives the main locking pin to extend and retract.

[0008] Furthermore, two push pins are fixedly connected to the locking pin push gear. The two push pins are symmetrically arranged on both sides of the axis of the locking pin push gear. A slot is opened on the push plate. The slot has a main slot extending along the sliding direction and multiple secondary slots opened on one side of the main slot. The push pins are embedded in the slots. By rotating the locking pin push gear, the two push pins are alternately embedded in the secondary slots of the slot and abut against the side wall of the secondary slot, thus pushing the push plate to move.

[0009] Furthermore, the connection between the main groove and the secondary groove is smoothly transitioned.

[0010] Furthermore, the upper end of the push plate is provided with an installation groove, in which a first magnet is embedded. An adjustment frame is fixedly installed in the lock body, facing the first magnet. A second magnet is installed in the adjustment frame, and the second magnet faces the first magnet and repels it.

[0011] Furthermore, the second magnet is slidably disposed within the adjustment frame, and an adjustment screw is rotatably mounted on the adjustment frame. The adjustment screw passes through the second magnet and engages with the threaded part of the second magnet, and the position of the second magnet within the adjustment frame is adjusted by rotating the adjustment screw.

[0012] The beneficial effects of this application are as follows:

[0013] 1. Through the locking head transmission component, transmission gear, and locking pin push gear, when the locking head transmission component rotates, it drives the locking pin push gear to rotate through the transmission gear, which in turn causes the push plate to move and drive the main locking pin to extend and retract. Since the locking head transmission component, transmission gear, and locking pin push gear are meshed together, the speed of the locking pin push gear will not change suddenly when the locking head transmission component rotates at a constant speed, so as not to cause the push plate and main locking pin to impact the limiting structure and generate noise, thus ensuring a silent effect.

[0014] 2. By setting two lock head transmission components, smooth transmission between the lock head transmission component and the lock column push gear is ensured, thus improving the stability of the transmission.

[0015] 3. By setting the slot and push column, the two push columns are inserted into the secondary slot of the slot in turn, which can drive the push plate to move smoothly when the lock column pushes the gear to rotate.

[0016] 4. By using the first and second magnets, when the first magnet reaches its limit position, the second magnet generates a certain repulsive force on the first magnet, preventing the push plate from hitting the limiting structure, i.e., the lock body, thus reducing impact noise. At the same time, the distance between the second and first magnets at their limit positions can be adjusted by rotating the adjusting screw, thereby controlling the repulsive force of the second magnet on the first magnet. This can be flexibly adjusted according to usage needs. For example, when a certain locking feel is required, the distance between the second and first magnets can be increased to make the locking feel stronger. When a better silent effect is required, the distance between the second and first magnets can be increased to generate sufficient repulsive force to prevent the push plate from directly hitting the lock body. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application.

[0018] Furthermore, throughout the accompanying drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the elements are not necessarily drawn to scale.

[0019] In the attached diagram:

[0020] Figure 1 This is an overall schematic diagram according to one embodiment of the present application;

[0021] Figure 2 yes Figure 1 A schematic diagram of the lock body's installation structure in the embodiment;

[0022] Figure 3 yes Figure 1 A schematic diagram of the push plate in the embodiment;

[0023] Figure 4 yes Figure 1 The embodiment is shown in the schematic diagram of the installation of the locking pin drive gear;

[0024] Figure 5 yes Figure 1 A schematic diagram of the installation of the second magnet in the embodiment.

[0025] Figure label:

[0026] 10. Lock body; 11. Slanted bolt; 12. Main lock pin; 13. Lock cylinder hole; 14. Lock head transmission component; 15. Transmission gear; 16. Lock pin push gear; 17. Push pin; 18. Push plate; 19. Slot; 20. First magnet; 21. Mounting pin; 22. Adjusting frame; 23. Adjusting screw; 24. Second magnet; 25. First mounting slot; 26. Second mounting slot; 27. Third mounting slot; 28. Mounting block; 29. ​​Lock body; 30. Lock cover. Detailed Implementation

[0027] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0028] It should also be noted that, for ease of description, only the parts relevant to the application are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.

[0029] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.

[0030] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0031] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0032] Reference Figure 1-5A silent door lock assembly includes: a lock body 10, a slanted latch 11, a main lock pin 12, a mounting block 28, a first mounting groove 25, a lock cylinder transmission component 14, a lock cylinder hole 13, a second mounting groove 26, the first mounting groove 25, and a third mounting groove 27. The lock body 10 includes a lock body 29 and a lock cover 30. Mounting holes are provided on both the lock body 29 and the lock cover 30. A mounting post 21 is provided between the lock body 29 and the lock cover 30, and screw holes are provided on the mounting post 21. The mounting post 21 is directly opposite the mounting holes, and screws are connected to the screw holes through the mounting holes to achieve fixed installation of the lock body 29 and the lock cover 30. The lock body 10 is equipped with a slanted bolt 11 and a main locking pin 12. A linkage structure between the slanted bolt 11 and the main locking pin 12 is also provided within the lock body 10. This linkage structure can refer to existing technology. A lock cylinder hole 13 is provided on the lock body 10. By rotating the lock cylinder located within the lock cylinder hole 13, the slanted bolt 11 and the main locking pin 12 can be driven to lock or unlock. Since the noise of the lock mainly comes from the collision between the bolt and the limiting mechanism during the rapid movement of the bolt during extension and retraction, the following solution is adopted.

[0033] Reference Figures 2-4An installation block 28 is fixedly installed inside the lock body 10. The installation block 28 has a first installation groove 25 located at the lock cylinder hole 13. A lock head transmission component 14 is installed in the first installation groove 25, and the lock head transmission component 14 has teeth. The lock head transmission component 14 is located at the lock cylinder hole 13 and is driven to rotate by the lock cylinder installed in the lock cylinder hole 13. Two second installation grooves 26 are also provided on the first installation groove 25. Transmission gears 15 are rotatably installed in the second installation grooves 26, and both transmission gears 15 mesh with the teeth on the lock head transmission component 14. A third installation groove 27 is provided on the installation block 28, and a lock pin push gear 16 is rotatably installed in the third installation groove 27. The lock pin push gear 16... Two transmission gears 15 mesh, and two push pins 17 are fixedly connected to the locking pin push gear 16. The two push pins 17 are symmetrically arranged on both sides of the axis of the locking pin push gear 16. A push plate 18 is slidably arranged inside the lock body 10. The main locking pin 12 is fixedly connected to the push plate 18. The main locking pin 12 is extended and retracted by the movement of the push plate 18. The push plate 18 has a slot 19. The slot 19 has a main slot extending along the sliding direction and multiple secondary slots opened on one side of the main slot. The connection between the main slot and the secondary slots of the slot 19 is smooth. The push pins 17 are located in the slot 19. The rotation of the locking pin push gear 16 causes the two push pins 17 to be inserted into the secondary slots of the slot 19 in turn and abut against the side wall of the secondary slot, thus pushing the push plate 18 to move. When the lock head transmission component 14 rotates, it drives the lock pin push gear 16 to rotate through the transmission gear 15, which in turn causes the push plate 18 to move and drive the main lock pin 12 to extend and retract. Since the lock head transmission component 14 is meshed with the transmission gear 15 and the lock pin push gear 16, the speed of the lock pin push gear 16 will not change suddenly when the lock head transmission component 14 rotates at a constant speed, so as not to cause the push plate 18 and the main lock pin 12 to impact the limiting structure and generate noise, thus ensuring a silent effect.

[0034] Reference Figure 5To prevent the push plate 18 from directly impacting the lock body 29 and making a noise when it reaches its limit position during locking, the upper end of the push plate 18 has a mounting groove. A first magnet 20 is embedded and fixedly installed in the mounting groove. An adjustment frame 22 is fixedly installed on the lock body 29, positioned inside the lock body 10 and directly opposite the first magnet 20. A second magnet 24 is installed inside the adjustment frame 22, facing and repelling the first magnet 20. The second magnet 24 is slidably positioned within the adjustment frame 22. An adjustment screw 23 is rotatably installed on the adjustment frame 22, passing through the second magnet 24 and threadedly engaging with it. Rotating the adjustment screw 23 adjusts the position of the second magnet 24 within the adjustment frame 22. The distance between the second magnet 24 and the first magnet 20 at their extreme positions can be adjusted by rotating the adjusting screw 23, thereby controlling the repulsive force of the second magnet 24 on the first magnet 20. This can be flexibly adjusted according to usage needs. For example, when a certain locking feel is required, the distance between the second magnet 24 and the first magnet 20 can be increased to make the locking feel stronger. When a better silent effect is required, the distance between the second magnet 24 and the first magnet 20 can be increased to generate sufficient repulsive force to prevent the push plate 18 from directly hitting the lock body 29.

[0035] Working process or usage method:

[0036] 1. When the lock cylinder causes the lock head transmission component 14 to rotate, the two transmission gears 15 drive the lock pin to drive the gear 16 to rotate, and then the push plate 18 moves under the action of the push pin 17. The movement of the push plate 18 drives the main lock pin 12 to extend and lock.

[0037] 2. When the push plate 18 moves to its limit position, the push plate 18 is prevented from directly hitting the first mounting groove 25 by the action of the second magnet 24 and the first magnet 20. By rotating the adjusting screw 23, the distance between the second magnet 24 and the first magnet 20 at the limit position can be adjusted. The repulsive force of the second magnet 24 on the first magnet 20 can be flexibly adjusted according to the needs of use. For example, when a certain locking feel is required, the distance between the second magnet 24 and the first magnet 20 can be increased to make the locking feel stronger. When a better silent effect is required, the distance between the second magnet 24 and the first magnet 20 can be increased to generate sufficient repulsive force to prevent the push plate 18 from directly hitting the lock body 29.

[0038] The above description is merely a selection of preferred embodiments of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the application involved in the embodiments of this disclosure is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described application concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions disclosed in the embodiments of this disclosure.

Claims

1. A quiet door latch assembly characterized by, include: A lock body (10) is provided with a retractable oblique latch (11) and a main lock pin (12). A lock cylinder hole (13) is provided on the lock body (10). The lock body (10) includes: The lock body (29) and the lock cover (30) are fixedly connected by screws. Mounting holes are provided on both the lock body (29) and the lock cover (30). A mounting post (21) is provided between the lock body (29) and the lock cover (30). The mounting post (21) is provided with screw holes. The mounting post (21) is directly opposite the mounting hole. The screws are connected to the screw holes through the mounting holes to realize the installation of the lock body (29) and the lock cover (30). The lock body (10) is also equipped with a silent structure.

2. A silent door lock assembly according to claim 1, characterized in that: The noise-silencing structure includes: An mounting block (28) is fixedly installed inside the lock body (10). A first mounting groove (25) is opened on the mounting block (28) at the position of the lock cylinder hole (13). A lock head transmission component (14) is provided in the first mounting groove (25). The lock head transmission component (14) is provided with teeth. The lock head transmission component (14) is located at the position of the lock cylinder hole (13). The lock cylinder installed on the lock cylinder hole (13) drives the lock head transmission component (14) to rotate. Two second mounting grooves (26) are also opened on the first mounting groove (25). A transmission gear (15) is rotatably installed in the second mounting groove (26). Both transmission gears (15) mesh with the teeth on the lock head transmission component (14).

3. A silent door lock assembly according to claim 2, characterized in that: The mounting block (28) is provided with a third mounting groove (27), and a locking pin push gear (16) is rotatably arranged in the third mounting groove (27). The locking pin push gear (16) meshes with two transmission gears (15). A push plate (18) is slidably arranged in the lock body (10). The main locking pin (12) is fixedly connected to the push plate (18). The main locking pin (12) is extended and retracted by the movement of the push plate (18).

4. A silent door lock assembly according to claim 3, characterized in that: Two push columns (17) are fixedly connected to the locking column push gear (16). The two push columns (17) are symmetrically arranged on both sides of the axis of the locking column push gear (16). The push plate (18) is provided with a slot (19). The slot (19) has a main slot extending along the sliding direction and multiple secondary slots opened on one side of the main slot. The push columns (17) are embedded in the slot (19). By rotating the locking column push gear (16), the two push columns (17) are alternately embedded in the secondary slots of the slot (19) and abut against the side wall of the secondary slot, thus pushing the push plate (18) to move.

5. A silent door lock assembly according to claim 4, characterized in that: The connection between the main groove and the secondary groove of the slot (19) is smooth.

6. A silent door lock assembly according to claim 5, characterized in that: The push plate (18) has an installation groove at its upper end, in which a first magnet (20) is embedded. An adjustment frame (22) is fixedly installed in the lock body (10) facing the first magnet (20). A second magnet (24) is installed in the adjustment frame (22). The second magnet (24) faces the first magnet (20) and repels it.

7. A silent door lock assembly according to claim 6, characterized in that: The second magnet (24) is slidably disposed in the adjustment frame (22). An adjustment screw (23) is rotatably mounted on the adjustment frame (22). The adjustment screw (23) passes through the second magnet (24) and is threadedly engaged with the second magnet (24). The position of the second magnet (24) in the adjustment frame (22) is adjusted by rotating the adjustment screw (23).

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