Door lock bolt mute device
By designing the mute component of the shock absorption ring and shock absorbing block in the door lock, the problem that cannot effectively reduce the noise when the lock tongue is rebounded, and the effective reduction of the noise of the lock tongue has improved, and the mute effect and the mute effect of the door lock and the door lock Use experience.
Patent Information
- Application Number
- CN202420463954.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-11
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-03-11
AI Technical Summary
When the lock tongue rebounds, the existing door lock cannot effectively reduce the noise caused by the lock tongue hitting the lock shell, resulting in the insignificant silence effect.
Design a door lock tongue mute device, including locking, oblique tongue components and mute components. The mute component is composed of a shock absorption ring and a shock -reducing block. The shock absorption rings are set on the peripheral of the lock tongue. The shock absorption block is set on the reset. The cushion and limit of the lock tongue is achieved by the slope to reduce the impact noise.
Effectively reduce the impact noise between the lock tongue and the side plate and the lock shell, and improve the experience and comfort of the door lock.
Smart Images
Figure CN222414414U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of door locks, and in particular to a door lock bolt silencing device. Background Art
[0002] The door lock body generally has a square tongue and an inclined tongue. The inclined tongue cooperates with the door frame to lock the door, and the square tongue can further enhance security. The process of opening and closing the door requires squeezing the inclined tongue to shrink it, and when the inclined tongue pops out after shrinking, it will hit the guide plate, and the impact noise is relatively large. In the prior art, manufacturers will add a plastic gasket between the inclined tongue and the guide plate to reduce the impact force when the inclined tongue pops out. However, it is found in actual use that a certain gap needs to be retained when the inclined tongue is installed in the lock shell, so the inclined tongue will rotate at a certain angle during movement, which causes the lock tongue to not only hit the guide plate when rebounding, but also knock on the lock shell. The existing buffering method using plastic gaskets can only reduce the noise of the lock tongue hitting the guide plate, but cannot reduce the noise of the lock tongue hitting the shell, resulting in an unclear silencing effect. Utility Model Content
[0003] In view of this, the utility model provides a door lock bolt silencing device.
[0004] The purpose of the utility model is achieved through the following technical solutions:
[0005] A door lock bolt silent device comprises: a lock housing, an inclined bolt assembly and a silent assembly; one side of the lock housing is connected to a side plate, and a lock hole is arranged on the side plate; the inclined bolt assembly comprises a lock tongue and a reset member, the lock tongue is slidably arranged in the lock housing, and a part of the lock tongue can extend out of the lock hole, the reset member abuts against the lock tongue and pushes the lock tongue toward the side plate; the silent assembly comprises a shock-absorbing ring and a shock-absorbing block, the shock-absorbing ring is arranged in the lock hole and sleeved on the outer periphery of the lock tongue, the shock-absorbing block is arranged on the reset member and can abut against the lock tongue, the lock tongue is provided with a top block, and the top block and the shock-absorbing block are provided with matching inclined surfaces.
[0006] In the above technical solution, when the lock tongue retracts and pops out, the lock tongue will rub against the shock absorbing ring and hit the shock absorbing ring, thereby reducing the noise generated by the friction and impact between the lock tongue and the side plate, that is, avoiding the lock tongue from directly hitting the side plate after rebounding; in addition, the top block set on the lock tongue cooperates with the shock absorbing block through an inclined surface, so that during the rebound of the lock tongue, the shock absorbing block can not only reduce the noise generated by the impact on the lock tongue through its own buffering function, but also play a role in limiting the lock tongue, reducing the displacement and rotation of the lock tongue, avoiding the lock tongue from hitting the lock shell due to rotation, and thus avoiding the noise generated by the lock tongue hitting the lock shell. Therefore, the utility model can effectively reduce the noise generated by the impact between the lock tongue and the side plate and the lock shell through the design of the shock absorbing ring and the shock absorbing block, greatly improving the user experience and comfort of the door lock.
[0007] Optionally, in a possible implementation, limiting portions are provided on two opposite sides of the lock tongue in the lock housing, the limiting portions can abut against the shock absorbing ring, and the top block is located between the two limiting portions.
[0008] In the above technical solution, the design of the limiting part can limit the lock tongue to prevent the lock tongue from separating from the lock shell. When the lock tongue shrinks and pops out to reset, the limiting parts located on both sides of the lock tongue will hit the shock-absorbing ring, thereby limiting the lock tongue. This can also reduce the contact area between the lock tongue and the shock-absorbing ring, so that the shock-absorbing ring can better absorb vibration and impact, thereby further reducing the noise generated during the impact.
[0009] Optionally, in a possible implementation, the shock-absorbing ring includes a side ring and a bottom ring, the side ring is attached to the inner wall of the lock hole, the bottom ring is arranged along the edge of the lock hole, and the two limiting portions can abut against the bottom ring.
[0010] In the above technical solution, the side ring is arranged on the inner wall of the lock hole to reduce the friction between the lock tongue and the lock hole, thereby reducing the noise generated by the friction; and the bottom ring is located in the lock shell and arranged along the edge of the lock hole, that is, the bottom ring is located between the side plate and the limiting part, and is used to reduce the noise generated by the impact between the limiting part and the side plate. Therefore, the design of the side ring and the bottom ring can reduce the noise of the lock tongue in all directions, effectively improving the silencing effect.
[0011] Optionally, in a possible implementation manner, the connection between the top block and the shock absorbing block is an interference fit.
[0012] In the above technical solution, the shock absorbing block is usually made of silicone or rubber and has a certain shrinkage elasticity. When the shock absorbing block hits the top block, it can achieve a good shock absorption and silencing effect. During the extension and retraction process of the lock tongue, it is ensured that the shock absorbing block can effectively play a shock absorption and buffering role. At the same time, it can also effectively avoid the problem of position deviation between the lock tongue and the reset part due to the rebound delay and the inconsistent reset time, which affects the positioning accuracy.
[0013] Optionally, in a possible implementation, the shock absorbing ring is rotatably installed in the lock housing through a sleeve, the shock absorbing ring is connected to the outer peripheral side of the sleeve, a fixing column is provided in the lock housing, and the sleeve is rotatably inserted into the fixing column.
[0014] In the above technical solution, the sleeve is located beside the lock tongue. Through the rotating and plug-in design of the sleeve, the shock-absorbing ring can rotate with the fixed column as the axis. The noise reduction component can be installed in the lock shell more stably and is not prone to loosening or falling off. When the shock-absorbing ring needs to be replaced or repaired, you only need to pull the sleeve out of the fixed column and then reinsert the new shock-absorbing ring. The operation is simple and quick.
[0015] Optionally, in a possible implementation, the reset member includes a top plate and an elastic member, the top plate is slidably disposed in the lock housing and one end of the top plate abuts against the lock tongue, the shock absorbing block is disposed on one end of the top plate abutting against the lock tongue, and the top plate is elastically connected to the lock housing through the elastic member.
[0016] In the above technical solution, the top plate is elastically clamped in the lock shell and can slide relative to the lock shell. When the lock tongue is retracted into the lock shell, the elastic part will be compressed. After the force is unloaded on the lock tongue, the elastic part will generate a certain elastic force on the top plate and reset it. Therefore, the design of the top plate and the elastic part can ensure that the lock tongue can be accurately and quickly reset to the initial position during the extension and retraction process. The structure is simple and effective.
[0017] Optionally, in a possible implementation, a gear is rotatably installed in the lock housing, the gear is connected to a damper, and the top plate is provided with a tooth portion meshingly connected to the gear.
[0018] In the above technical solution, the setting of the damper can prevent the lock tongue from making a rapid impact on the shock-absorbing ring when resetting. That is, when the lock tongue pops out to reset after shrinking, the top plate will be affected by the damper. The top plate will not be quickly reset to the initial position due to the elastic part all at once, but will slow down the reset time under the use of the damper. In this way, a violent impact on the shock-absorbing ring can be avoided, thereby further reducing the noise during reset and also increasing the service life of the noise reduction component.
[0019] Optionally, in a possible implementation, a limit plate is provided in the lock housing, the lock tongue is slidably clamped in the limit plate, and two ends of the elastic member are respectively abutted against the top plate and the limit plate.
[0020] In the above technical solution, the design of the limit plate can ensure that the lock tongue always remains in the correct position during the extension and retraction process, thereby avoiding collision or friction between the lock tongue and other components. At the same time, the limit plate can also limit the movement range of the lock tongue to avoid excessive wear or damage, and also facilitate the installation of the elastic part.
[0021] Optionally, in a possible implementation, a avoidance groove is provided on the limit plate, and the top plate is inserted into the avoidance groove.
[0022] In the above technical solution, the avoidance groove can prevent the limiting plate from interfering with the movement of the top plate, and at the same time can effectively reduce the installation space of the limiting plate and improve the space utilization rate in the lock housing.
[0023] Optionally, in a possible implementation, the limiting plate is a "U"-shaped plate.
[0024] In the above technical solution, the structural design of the "U"-shaped plate is simple and ingenious. Its two relatively parallel ends can just form a limiting space for the lock tongue, so that the lock tongue is always located in the limiting space to prevent it from being offset. At the same time, the end located at the bottom can also limit the elastic part, which facilitates the assembly of the elastic part. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.
[0026] Figure 1 The figure is a schematic diagram of the overall structure of an embodiment of the utility model.
[0027] Figure 2 for Figure 1 Cross-sectional view along the AA direction.
[0028] Figure 3 It is an exploded view of an embodiment of the utility model.
[0029] Figure 4 It is a partial structural schematic diagram of an embodiment of the utility model.
[0030] Figure markings: 1-lock housing; 2-side plate; 3-oblique tongue assembly; 31-lock tongue; 311-top block; 312-limiting part; 32-reset member; 321-top plate; 322-elastic member; 4-silent assembly; 41-shock-absorbing ring; 411-side ring; 412-bottom ring; 42-shock-absorbing block; 5-sleeve; 6-fixing column; 7-damper; 8-limiting plate. DETAILED DESCRIPTION
[0031] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.
[0032] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.
[0033] Please refer to Figure 1 , Figure 2 and Figure 4 The present embodiment provides a door lock bolt 31 mute device, comprising: a lock housing 1, an inclined bolt assembly 3 and a mute assembly 4; a side plate 2 is connected to one side of the lock housing 1, and a lock hole is provided on the side plate 2; the inclined bolt assembly 3 comprises a lock bolt 31 and a reset member 32, the lock bolt 31 is slidably arranged in the lock housing 1, and a part of the lock bolt 31 can extend out of the lock hole, the reset member 32 abuts against the lock bolt 31 and pushes the lock bolt 31 toward the side plate 2; the mute assembly 4 comprises a shock absorbing ring 41 and a shock absorbing block 42, the shock absorbing ring 41 is arranged in the lock hole and sleeved on the outer periphery of the lock bolt 31, the shock absorbing block 42 is arranged on the reset member 32 and can abut against the lock bolt 31, the lock bolt 31 is provided with a top block 311, and the top block 311 and the shock absorbing block 42 are provided with matching inclined surfaces. Among them, the shock absorbing ring 41 and the shock absorbing block 42 can be structures with elastic functions such as rubber or silicone.
[0034] In this embodiment, when the lock tongue 31 is retracted and then popped out, the lock tongue 31 will generate friction with the shock absorbing ring 41 and hit the shock absorbing ring 41, thereby reducing the noise generated by the friction and impact between the lock tongue 31 and the side plate 2, that is, avoiding the lock tongue 31 from directly hitting the side plate 2 after rebounding; in addition, the top block 311 provided on the lock tongue 31 cooperates with the shock absorbing block 42 through an inclined surface, so that during the rebound of the lock tongue 31, the shock absorbing block 42 can not only reduce the noise generated by the impact on the lock tongue 31 through its own buffering function, but also play a role in limiting the lock tongue 31, reducing the displacement and rotation of the lock tongue 31, avoiding the lock tongue 31 from hitting the lock housing 1 due to rotation, thereby avoiding the noise generated by the lock tongue 31 hitting the lock housing 1. Therefore, the utility model can effectively reduce the noise generated by the impact between the lock tongue 31 and the side plate 2 and the lock housing 1 through the design of the shock absorbing ring 41 and the shock absorbing block 42, greatly improving the use experience and comfort of the door lock.
[0035] Please refer to Figure 3 In this embodiment, the locking tongue 31 is provided with limiting portions 312 on two opposite sides of the lock housing 1 , the limiting portions 312 can abut against the shock absorbing ring 41 , and the top block 311 is located between the two limiting portions 312 .
[0036] In this embodiment, the locking tongue 31 can be limited by the design of the limiting portion 312 to prevent the locking tongue 31 from being separated from the lock housing 1. When the locking tongue 31 shrinks and then pops out to reset, the limiting portions 312 located on both sides of the locking tongue 31 will hit the shock absorbing ring 41, thereby limiting the locking tongue 31. This can also reduce the contact area between the locking tongue 31 and the shock absorbing ring 41, so that the shock absorbing ring 41 can better absorb vibration and impact, thereby further reducing the noise generated during the impact.
[0037] Please refer to Figure 3 In this embodiment, the shock-absorbing ring 41 includes a side ring 411 and a bottom ring 412 . The side ring 411 is attached to the inner wall of the lock hole, and the bottom ring 412 is arranged along the edge of the lock hole. The two limiting portions 312 can abut against the bottom ring 412 .
[0038] The side ring 411 of this embodiment is arranged on the inner wall of the lock hole to reduce the friction between the lock tongue 31 and the lock hole, thereby reducing the noise generated by the friction; and the bottom ring 412 is located in the lock shell 1 and is arranged along the edge of the lock hole, that is, the bottom ring 412 is located between the side plate 2 and the limiting portion 312, and is used to reduce the noise generated by the impact between the limiting portion 312 and the side plate 2. Therefore, the design of the side ring 411 and the bottom ring 412 can reduce the noise of the lock tongue 31 in all directions, effectively improving the silencing effect.
[0039] Please refer to Figure 2In this embodiment, the connection between the top block 311 and the shock absorbing block 42 is an interference fit. The shock absorbing block 42 is usually made of silicone or rubber and has a certain shrinkage elasticity. In this way, when the shock absorbing block 42 hits the top block 311, a better shock absorption and silencing effect can be obtained. During the extension and retraction process of the lock tongue 31, it is ensured that the shock absorbing block 42 can effectively play a shock absorption and buffering role. At the same time, it can also effectively avoid the problem of position deviation between the lock tongue 31 and the reset member 32 due to the rebound delay and the inconsistent reset time, which affects the positioning accuracy.
[0040] Please continue to refer to Figure 3 In this embodiment, the shock absorbing ring 41 is rotatably installed in the lock housing 1 through the sleeve 5, the shock absorbing ring 41 is connected to the outer peripheral side of the sleeve 5, a fixing column 6 is provided in the lock housing 1, and the sleeve 5 is rotatably inserted into the fixing column 6.
[0041] The sleeve 5 of this embodiment is located beside the lock tongue 31. Through the rotation and plug-in design of the sleeve 5, the shock-absorbing ring 41 can rotate around the fixed column 6 as the axis. The noise reduction component can be installed in the lock shell 1 more stably and is not prone to loosening or falling off. When the shock-absorbing ring 41 needs to be replaced or repaired, it only needs to be pulled out of the sleeve 5 from the fixed column 6 and then reinserted into a new shock-absorbing ring 41. The operation is simple and quick.
[0042] Please refer to Figure 3 and Figure 4 In this embodiment, the reset member 32 includes a top plate 321 and an elastic member 322. The top plate 321 is slidably disposed in the lock housing 1 and one end of the top plate 321 abuts against the lock tongue 31. The shock absorbing block 42 is disposed on the top plate 321 at one end abutting against the lock tongue 31. The top plate 321 is elastically connected to the lock housing 1 through the elastic member 322.
[0043] The top plate 321 is elastically clamped in the lock shell 1 and can slide relative to the lock shell 1. When the lock tongue 31 is retracted into the lock shell 1, the elastic member 322 will be compressed. After the force is released from the lock tongue 31, the elastic member 322 will generate a certain elastic force on the top plate 321 and reset it. Therefore, the design of the top plate 321 and the elastic member 322 can ensure that the lock tongue 31 can be accurately and quickly reset to the initial position during the extension and retraction process, and the structure is simple and effective.
[0044] In this embodiment, a gear is rotatably mounted in the lock housing 1, the gear is connected to a damper 7, and the top plate 321 is provided with a toothed portion meshing with the gear. The damper 7 can be provided to prevent the lock tongue 31 from having a rapid impact on the damping ring 41 when resetting, that is, when the lock tongue 31 is retracted and then pops out to reset, the top plate 321 is affected by the damper 7, and the top plate 321 will not be quickly reset to the initial position due to the elastic member 322, but will slow down the reset time under the use of the damper 7, so that a violent impact on the damping ring 41 can be avoided, thereby further reducing the noise during reset, and at the same time, the service life of the noise reduction component can be increased.
[0045] It should be noted that the setting of the damper 7 may cause the reset time of the lock tongue 31 and the top plate 321 to be inconsistent, that is, a certain reset delay will be generated, which may lead to inaccurate alignment between the shock absorbing block 42 and the top block 311, or poor shock absorbing effect. The bevel fit and interference fit between the shock absorbing block 42 and the top block 311 of this embodiment can solve this problem well.
[0046] Please refer to Figure 1 In this embodiment, a limit plate 8 is provided in the lock housing 1, the lock tongue 31 is slidably clamped in the limit plate 8, and the two ends of the elastic member 322 are respectively abutted against the top plate 321 and the limit plate 8.
[0047] The design of the limit plate 8 in this embodiment can ensure that the lock tongue 31 always remains in the correct position during the extension and retraction process, thereby avoiding collision or friction between the lock tongue 31 and other components. At the same time, the limit plate 8 can also limit the movement range of the lock tongue 31 to avoid excessive wear or damage, and also facilitate the installation of the elastic member 322.
[0048] In this embodiment, the limit plate 8 is provided with an avoidance groove, and the top plate 321 is inserted into the avoidance groove. The avoidance groove can prevent the limit plate 8 from interfering with the movement of the top plate 321, and can effectively reduce the installation space of the limit plate 8 and improve the space utilization rate in the lock housing 1.
[0049] In this embodiment, the limiting plate 8 is a "U"-shaped plate. The structural design of the "U"-shaped plate is simple and ingenious, and its two relatively parallel ends can just form a limiting space for the lock tongue 31, so that the lock tongue 31 is always located in the limiting space to prevent it from being offset. At the same time, the end located at the bottom can also limit the elastic member 322, which facilitates the assembly of the elastic member 322.
[0050] It should be noted that similar numbers and letters represent similar items in the following figures, so once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. In the description of the embodiments of the present application, it should be understood that the orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", etc. is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the application product is usually placed when in use, or the orientation or position relationship commonly understood by those skilled in the art, which is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.
[0051] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other.
[0052] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A door lock bolt silencing device, characterized in that: include: A lock housing, one side of which is connected to a side plate, and a lock hole is provided on the side plate; The oblique bolt assembly comprises a locking bolt and a reset member, wherein the locking bolt is slidably disposed in the lock housing and a portion of the locking bolt can extend out of the lock hole, and the reset member abuts against the locking bolt and pushes the locking bolt toward the side plate; The mute component comprises a shock absorbing ring and a shock absorbing block. The shock absorbing ring is arranged in the lock hole and sleeved on the outer periphery of the lock tongue. The shock absorbing block is arranged on the reset member and can abut against the lock tongue. The lock tongue is provided with a top block. The top block and the shock absorbing block are provided with matching inclined surfaces.
2. The door lock bolt silencing device according to claim 1, characterized in that: The locking tongue is provided with limiting parts on two opposite sides in the lock housing, and the limiting parts can abut against the shock absorbing ring, and the top block is located between the two limiting parts.
3. The door lock bolt silencing device according to claim 2, characterized in that: The shock-absorbing ring comprises a side ring and a bottom ring, the side ring is fitted to the inner side wall of the lock hole, the bottom ring is arranged along the edge of the lock hole, and the two limiting parts can abut against the bottom ring.
4. The door lock bolt silencing device according to claim 1, characterized in that: The connection between the top block and the shock absorbing block is an interference fit.
5. The door lock bolt silencing device according to claim 1, characterized in that: The damping ring is rotatably installed in the lock housing through a sleeve, the damping ring is connected to the outer peripheral side of the sleeve, a fixing column is arranged in the lock housing, and the sleeve is rotatably plugged into the fixing column.
6. The door lock bolt silencing device according to claim 1, characterized in that: The reset member includes a top plate and an elastic member. The top plate is slidably disposed in the lock housing and one end of the top plate abuts against the lock tongue. The shock absorbing block is disposed on one end of the top plate abutting against the lock tongue. The top plate is elastically connected to the lock housing through the elastic member.
7. The door lock bolt silencing device according to claim 6, characterized in that: A gear is rotatably mounted in the lock housing, the gear is connected to a damper, and the top plate is provided with a toothed portion meshing with the gear.
8. The door lock bolt silencing device according to claim 6, characterized in that: A limiting plate is arranged in the lock housing, the locking tongue is slidably clamped in the limiting plate, and two ends of the elastic member are respectively in contact with the top plate and the limiting plate.
9. The door lock bolt silencing device according to claim 8, characterized in that: The limiting plate is provided with a avoiding groove, and the top plate is penetrated in the avoiding groove.
10. The door lock bolt silencing device according to claim 8, characterized in that: The limiting plate is a "U"-shaped plate.