Spring bolt noise reduction mechanism of intelligent lock

By introducing a damper and a shock-absorbing ring into the bolt assembly of the smart lock, the noise problem during the bolt opening and closing process is solved, resulting in a significant reduction in noise and an improved user experience.

CN223854005UActive Publication Date: 2026-01-30SUZHOU KUNSHAN GENERAL LOCKSET CO LTD
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Patent Information

Application Number
CN202520358511.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-04
Publication Date
2026-01-30
Estimated Expiration
2035-03-04

AI Technical Summary

Technical Problem

The bolts of existing smart locks generate noise during opening and closing, especially the impact noise from the moving plate hitting the side plate, which affects the user experience.

Method used

A noise reduction mechanism for the locking tongue is designed. By introducing a damper and a shock-absorbing ring into the locking tongue assembly, the damper slows down the moving speed of the moving plate and reduces the impact force, while the shock-absorbing ring further reduces noise. At the same time, a noise reduction ring is set in the locking groove to avoid direct contact friction.

Benefits of technology

It effectively reduces the noise of the latch assembly and improves the user experience of the smart lock.

✦ Generated by Eureka AI based on patent content.

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Abstract

The spring bolt noise reduction mechanism of the intelligent lock comprises a lock shell, a positioning assembly is installed at one end of the lock shell, a latch bolt assembly is installed in the lock shell, a noise reduction assembly is installed at one end of the latch bolt assembly, the positioning assembly comprises a side plate, five sets of lock grooves are formed in the middle of the side plate, and the lock grooves are formed in the side plate. The noise reduction assembly comprises a second fixing plate fixedly installed in the lock shell, two sets of dampers are fixedly installed on one side of the second fixing plate, and a movable plate is fixedly installed at one ends of the two sets of dampers. The damper can reduce the moving speed of the moving plate and reduce the force of the moving plate impacting the side plate, so that the effect of reducing the noise of the latch bolt assembly is achieved, meanwhile, the damping ring installed on one side of the moving plate is used for further reducing the noise generated by impacting of the moving plate and the side plate, and the use experience effect of the intelligent lock is improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to intelligent lock production technical field, concretely relates to a lock tongue noise reduction mechanism of intelligent lock. BACKGROUND

[0002] The intelligent lock is a kind of lock that combines electronic control function and traditional door lock structure, and it is unlocked by the signal linkage electronic function given by biological recognition, password keyboard, bluetooth adapter, network function, while retaining the mechanical part of unlocking by key.

[0003] The existing intelligent lock will produce certain noise in the process of opening and closing, and the latch assembly is the main component of the intelligent lock that is often opened, so the noise produced by the latch assembly is the most frequent, and the main noise is produced by the impact of the moving plate of the latch with the side plate, which seriously affects the user experience, therefore, we need to provide a lock tongue noise reduction mechanism of intelligent lock. UTILITY MODEL CONTENT

[0004] The utility model discloses a lock tongue noise reduction mechanism of intelligent lock, through the setting of noise reduction subassembly, when door closes, moving rod drives moving plate to move, moving plate drives latch to move to the outside of side plate, utilize the connecting relationship between moving plate, second fixed plate, damper, damper will reduce the moving speed of moving plate, reduce the strength of moving plate impact side plate, to realize the effect of reducing the noise of latch assembly, simultaneously utilize the shock ring installed on one side of moving plate, further reduce the noise produced by the impact of moving plate and side plate, to solve the problem raised in the above background art.

[0005] To achieve the above object, the utility model provides the following technical scheme: a lock tongue noise reduction mechanism of intelligent lock, including lock shell, the one end of lock shell is installed with positioning assembly, the inside of lock shell is installed with latch assembly, the one end of latch assembly is installed with noise reduction subassembly, positioning assembly includes side plate, the middle part of side plate is equipped with five groups of lock slot, noise reduction subassembly includes the second fixed plate of fixed installation in the inside of lock shell, the one side of second fixed plate is fixedly installed with two groups of damper, the one end of two groups of damper is fixedly installed with moving plate, the middle part of moving plate is fixedly installed with latch, the one end of latch is through a group of lock slot and penetrates to the outside of side plate, the one end of moving plate is fixedly installed with shock ring, when latch stretches out, the one end of shock ring is pasted with the one end of side plate.

[0006] Preferably, the latch assembly includes a first fixed plate fixedly installed in the inner cavity of the lock shell, a moving rod movably installed through the middle part of the first fixed plate, a limit plate fixedly installed at one end of the moving rod, and the other end of the moving rod fixedly connected with one end of the moving plate.

[0007] Preferably, the middle part of the moving rod is sleeved with a spring, one end of the spring is welded to one end of the first fixed plate, and the other end of the spring is fixedly welded to one end of the moving plate.

[0008] Preferably, the middle part of the second fixed plate is provided with a rod penetrating groove, and the moving rod and the spring are movably penetrated through the second fixed plate through the rod penetrating groove.

[0009] Preferably, the two ends of the lock shell are fixedly provided with mounting plates, the two ends of the side plate are penetratedly provided with bolts, and one end of the two bolts is penetratedly and threadedly connected with the middle parts of the two groups of mounting plates.

[0010] Preferably, the inner side walls of the five groups of lock grooves are fixedly provided with one group of noise reduction rings, and the inner side walls of the five groups of noise reduction rings are respectively attached to the outer sides of the latch, the three groups of main lock tongues and the reverse lock tongue.

[0011] Preferably, the inside of the lock shell is provided with a controller, one side of the controller is provided with three groups of main lock tongues and one group of reverse lock tongues, one end of the three groups of main lock tongues and the group of reverse lock tongues is penetrated to the outside of the lock shell through the lock groove, and one end of the three groups of main lock tongues and the group of reverse lock tongues is provided with one group of shock-absorbing plates.

[0012] Compared with the prior art, the utility model has the advantages that:

[0013] The utility model discloses a damping device for a latch assembly of an intelligent lock, which comprises a lock shell, a side plate, a moving plate, a second fixed plate, a damping device, a latch, three groups of main lock tongues and a reverse lock tongue.

[0014] Other features and advantages of the present application will be set forth in the following description of the application, and in part will become apparent to those skilled in the art upon examination of the following or can be learned by practice of the application. The objects and other advantages of the application can be realized and attained by the structure particularly pointed out in the written description and claims hereof. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is an overall structure schematic view of the utility model;

[0016] Figure 2 It is an installation structure schematic view of the damping device of the utility model;

[0017] Figure 3 It is an exploded structure schematic view of the positioning assembly of the utility model;

[0018] Figure 4 It is an exploded structure schematic view of the noise reduction assembly of the utility model.

[0019] Fig. 1, lock shell; 2, mounting plate; 3, positioning assembly; 31, side plate; 32, bolt; 33, lock slot; 34, noise reduction ring; 4, latch assembly; 41, first fixed plate; 42, moving rod; 43, limiting plate; 44, spring; 5, noise reduction assembly; 51, second fixed plate; 52, through rod slot; 53, damper; 54, moving plate; 55, shock absorbing ring; 6, latch; 7, controller; 8, main lock tongue; 9, reverse lock tongue; 10, shock absorbing plate. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0021] Please refer to Figures 1-4 The utility model provides a latch noise reduction mechanism of intelligent lock, including lock shell 1, one end of lock shell 1 is installed with positioning assembly 3, the inside of lock shell 1 is installed with latch assembly 4, one end of latch assembly 4 is installed with noise reduction assembly 5, positioning assembly 3 includes side plate 31, the middle part of side plate 31 is equipped with five lock slots 33, noise reduction assembly 5 includes the second fixed plate 51 of fixed installation in the inside of lock shell 1, one side of second fixed plate 51 is fixedly installed with two sets of damper 53, one end of two sets of damper 53 is fixedly installed with moving plate 54, the middle part of moving plate 54 is fixedly installed with latch 6, one end of latch 6 is through a set of lock slots 33 and penetrates to the outside of side plate 31, one end of moving plate 54 is fixedly installed with shock absorbing ring 55, when latch 6 extends, one end of shock absorbing ring 55 is pasted with one end of side plate 31.

[0022] When using, through the setting of noise reduction assembly 5, when the door is closed, moving rod 42 drives moving plate 54 to move, moving plate 54 drives latch 6 to move to the outside of side plate 31, utilizes the connecting relationship between moving plate 54, second fixed plate 51, damper 53, damper 53 will slow down the moving speed of moving plate 54, reduces the power of moving plate 54 impacting side plate 31, thereby realizes the effect that the noise of latch assembly 4 is reduced, simultaneously utilizes shock absorbing ring 55 installed on one side of moving plate 54, further reduces the noise generated by the impact of moving plate 54 and side plate 31.

[0023] The latch assembly 4 comprises a first fixed plate 41 fixedly installed in the cavity of the lock shell 1, a movable rod 42 movably installed in the middle of the first fixed plate 41, a limiting plate 43 fixedly installed at one end of the movable rod 42, and one end of a moving plate 54 fixedly connected with the other end of the movable rod 42. Through the connecting relationship among the first fixed plate 41, the movable rod 42, the limiting plate 43 and the moving plate 54, when opening the door, the limiting plate 43 is moved to drive the movable rod 42 to move, the movable rod 42 drives the moving plate 54 to move, the moving plate 54 drives the latch 6 to move, and the effect of opening the door is realized. When closing the door, the moving plate 54 is moved to drive the latch 6 to move, and the movable rod 42 and the limiting plate 43 are synchronously moved to realize the effect of locking the door.

[0024] The middle of the movable rod 42 is sleeved with a spring 44, one end of the spring 44 is welded to one end of the first fixed plate 41, and the other end of the spring 44 is fixedly welded to one end of the moving plate 54. Through the setting of the spring 44, the spring 44 always generates a force on the moving plate 54. Under the condition that there is no external force, the moving plate 54 always moves the latch 6 to the outside of the side plate 31 under the action of the spring 44, and the effect of locking the door is realized.

[0025] The middle of the second fixed plate 51 is provided with a rod passing groove 52, and the movable rod 42 and the spring 44 movably pass through the second fixed plate 51 through the rod passing groove 52. Through the setting of the rod passing groove 52, the normal work of the noise reduction assembly 5 is ensured, and the normal work of the movable rod 42 and the spring 44 is not affected.

[0026] The two ends of the lock shell 1 are fixedly installed with mounting plates 2, and the two ends of the side plate 31 are movably installed with bolts 32. One end of the two bolts 32 is movably and threadedly connected with the middle of the two mounting plates 2. Through the connecting relationship among the lock shell 1, the mounting plates 2, the side plate 31 and the bolts 32, the effect of quickly docking the side plate 31 and the lock shell 1 is realized.

[0027] The inner side walls of the five groups of lock grooves 33 are fixedly installed with one group of noise reduction rings 34, and the inner side walls of the five groups of noise reduction rings 34 are respectively attached to the outer sides of the latch 6, the three groups of main lock tongues 8 and the reverse lock tongue 9. Through the connecting relationship among the lock grooves 33, the noise reduction rings 34, the latch 6, the main lock tongues 8 and the reverse lock tongue 9, the direct contact and friction between the latch 6, the main lock tongues 8 and the reverse lock tongue 9 and the lock grooves 33 are avoided, and the effect of reducing noise is realized.

[0028] The inside of the lock shell 1 is installed with a controller 7, one side of the controller 7 is installed with three groups of main lock tongues 8 and one group of reverse lock tongues 9, one end of the three groups of main lock tongues 8 and the one group of reverse lock tongues 9 passes through the lock grooves 33 to the outside of the lock shell 1, and one end of the three groups of main lock tongues 8 and the one group of reverse lock tongues 9 is installed with one group of shock absorbing plates 10. Through the setting of the controller 7, the effect of switching the three groups of main lock tongues 8 and the one group of reverse lock tongues 9 is realized, and through the setting of the shock absorbing plates 10, the noise generated between the main lock tongues 8, the reverse lock tongue 9 and the door buckle plate is reduced.

[0029] Specific use: the lock shell 1 and the side plate 31 are fixed together through the bolt 32 and the mounting plate 2, the combination effect of the whole lock cylinder is realized, when the door is closed, the movable rod 42 drives the movable plate 54 to move, the movable plate 54 drives the latch 6 to move to the outside of the side plate 31, the connecting relationship among the movable plate 54, the second fixed plate 51 and the damper 53 is utilized, the damper 53 will slow down the moving speed of the movable plate 54, the force of the movable plate 54 impacting the side plate 31 is reduced, so that the effect of reducing the noise of the latch assembly 4 is realized, the shock-absorbing ring 55 installed on one side of the movable plate 54 is utilized, the noise generated by the impact between the movable plate 54 and the side plate 31 is further reduced, at the same time, the inside noise reduction ring 34 of the lock slot 33 is arranged, the latch 6, the main lock tongue 8 and the reverse lock tongue 9 are avoided from directly contacting with the lock slot 33, the generation of noise is further reduced, finally, the connecting relationship among the shock-absorbing plate 10, the main lock tongue 8 and the reverse lock tongue 9 is utilized, the noise generated between the main lock tongue 8, the reverse lock tongue 9 and the door buckle plate is reduced, through the arrangement of the above-mentioned devices, the effect of reducing the noise of the lock tongue mechanism of the intelligent lock is realized.

[0030] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A noise reduction mechanism for the bolt of a smart lock, characterized in that: Including the lock shell (1), one end of the lock shell (1) is provided with a positioning assembly (3), the inside of the lock shell (1) is provided with a latch assembly (4), one end of the latch assembly (4) is provided with a noise reduction assembly (5); The positioning assembly (3) comprises a side plate (31), and five groups of lock grooves (33) are formed in the middle portion of the side plate (31); The noise reduction assembly (5) comprises a second fixed plate (51) fixedly installed in the inside of the lock shell (1), two groups of dampers (53) are fixedly installed on one side of the second fixed plate (51), one end of the two groups of dampers (53) is fixedly installed with a moving plate (54), a latch (6) is fixedly installed in the middle portion of the moving plate (54), one end of the latch (6) penetrates to the outside of the side plate (31) through a group of lock grooves (33), and one end of the moving plate (54) is fixedly installed with a damping ring (55), when the latch (6) is stretched out, one end of the damping ring (55) is attached to one end of the side plate (31).

2. The deadbolt noise reduction mechanism of claim 1, wherein: The latch assembly (4) comprises a first fixed plate (41) fixedly installed in the inner cavity of the lock shell (1), a movable rod (42) is movably installed in the middle portion of the first fixed plate (41), and a limiting plate (43) is fixedly installed at one end of the movable rod (42).

3. The deadbolt noise reduction mechanism of claim 2, wherein: The middle portion of the movable rod (42) is sleeved with a spring (44), one end of the spring (44) is welded to one end of the first fixed plate (41), and the other end of the spring (44) is fixedly welded to one end of the moving plate (54).

4. The deadbolt noise reduction mechanism of claim 3, wherein: The middle portion of the second fixed plate (51) is provided with a rod penetrating groove (52), and the movable rod (42) and the spring (44) are movably penetrated through the second fixed plate (51) through the rod penetrating groove (52).

5. The deadbolt noise reduction mechanism of claim 1, wherein: Both ends of the lock shell (1) are fixedly installed with mounting plates (2), both ends of the side plate (31) are penetratively installed with bolts (32), and one end of the two bolts (32) is movably connected with the middle portion of the two mounting plates (2) through screw threads.

6. The deadbolt noise reduction mechanism of claim 1, wherein: One end of the latch (6), three groups of main lock latches (8) and a group of reverse lock latches (9) are respectively attached to the inner side walls of the five groups of noise reduction rings (34).

7. The deadbolt noise reduction mechanism of claim 1, wherein: The inside of the lock shell (1) is provided with a controller (7), one side of the controller (7) is provided with three groups of main lock latches (8) and a group of reverse lock latches (9), one end of the three groups of main lock latches (8) and the group of reverse lock latches (9) is movably penetrated to the outside of the lock shell (1) through the lock grooves (33), and one end of the three groups of main lock latches (8) and the group of reverse lock latches (9) is movably penetrated to the outside of the lock shell (1) through the lock grooves (33).