CN217841183U

CN217841183U - Mute lock body

Info

Publication number: CN217841183U
Application number: CN202221580786.5U
Authority: CN
Inventors: 冯伟杰; 张学勤; 陈鸿填
Original assignee: Guangdong Hutlon Technology Co Ltd; Foshan Hutlon Intelligent Technology Co Ltd
Current assignee: Guangdong Hutlon Technology Co Ltd; Foshan Hutlon Intelligent Technology Co Ltd
Priority date: 2022-05-31
Filing date: 2022-05-31
Publication date: 2022-11-18
Anticipated expiration: 2032-05-31

Abstract

The utility model discloses a silence lock body, including casing, oblique tongue subassembly, linear buffer and shift fork. The latch bolt component is slidably arranged in the shell and extends out of the shell; the linear buffer is fixedly arranged in the shell; the first shifting bar is abutted against the output end of the linear buffer; when the shifting fork is rotated to the first position, the latch bolt can retract into the shell; when the shifting fork is released, the shifting fork returns to the second position, and the linear buffer can generate buffer force on the first shifting bar when the shifting fork is switched from the first position to the second position. This technical scheme's silence lock body can select the longer linear buffer of stroke, can avoid linear buffer to swing repeatedly in the course of the work, and the operation is more smooth and easy, stable, and buffering effect is better.

Description

Mute lock body

Technical Field

The utility model is used for lock body technical field especially relates to a silence lock body.

Background

The conventional door lock generally includes a lock body and a handle, and when a user presses or lifts the handle, a bolt in the lock body is controlled to extend or retract, and then the handle is reset by a return mechanism inside the lock body. During the resetting process, the lock body is easy to generate impact sound due to excessive restoring force, and the handle may even impact the hand of the user.

To solve the above problem, some door locks have been built in with a buffer structure, which is usually linked to a handle. But because the restriction of lock body inner space, most buffer structure all can only select the buffer that the stroke is shorter, and its buffering effect is relatively poor, greatly reduced user's use experience. In order to increase the buffering performance of part of buffering structures, the space inside the lock body is fully utilized through the lever type structural distribution, and therefore a buffer with a longer stroke can be selected. However, it has the following disadvantages: in order to adapt to the transmission demand of lever, the buffer can only be installed in the lock body through articulated mode, and it can swing repeatedly at the course of the work, strikes the lock body inner wall easily, and the operation is unstable, and its buffering effect and life also receive certain influence.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve one of the technical problem that exists among the prior art at least, provide a silence lock body, it can select the longer linear buffer of stroke, can avoid linear buffer to swing repeatedly in the course of the work, moves more smoothly, stable, and buffering effect is better.

The utility model provides a technical scheme that its technical problem adopted is:

a silent lock body, comprising:

a housing;

a latch bolt assembly slidably mounted within the housing and extending out of the housing;

the linear buffer is fixedly arranged in the shell;

the shifting fork is rotatably arranged in the shell and provided with a first shifting strip which is abutted against the output end of the linear buffer;

when the shifting fork is rotated to a first position, the latch bolt assembly can retract into the shell; when the shifting fork is released, the shifting fork returns to the second position, and the linear buffer can generate buffer force on the first shifting bar when the shifting fork is switched from the first position to the second position.

In combination with the foregoing implementation manners, in some implementation manners of the present invention, the latch bolt assembly includes a latch bolt and an elastic restoring component, the latch bolt is slidably installed in the housing and extends out of the housing, the shifting fork is provided with a second shifting bar, and when the shifting fork is rotated to the first position, the second shifting bar can drive the latch bolt to retract into the housing; when the shifting fork is released, the elastic resetting component can drive the latch bolt to extend out of the shell.

In combination with the foregoing implementation manner, in certain implementations of the present invention, the linear buffer is installed in the bottom of the shifting fork, and is located near one side of the latch bolt, the first shifting strip is located the linear buffer is kept away from one end of the latch bolt, when the shifting fork is switched to the second position from the first position, the first shifting strip is stretched the output end of the linear buffer.

In combination with the above implementation manner, the utility model discloses an in some implementation manners, the oblique tongue subassembly includes first locating part and edge the connecting axle that the slip direction of oblique tongue extends, be equipped with the second locating part in the casing, the connecting axle is worn to locate the second locating part, and can be relative the second locating part is reciprocal to be slided, the oblique tongue install in the one end of connecting axle, the elasticity reset unit install in the oblique tongue with between the second locating part, first locating part install in the connecting axle, and be located the second locating part is kept away from one side of oblique tongue, first locating part with be formed with the confession between the second locating part the space that the strip stretched into is dialled to the second.

In combination with the foregoing implementation manner, in certain implementation manners of the present invention, the elastic restoring component includes a spring, the spring housing is disposed outside the connecting shaft, and the spring housing abuts against the latch bolt and the second locating part.

With the foregoing in view, in certain implementations of the present invention, the first toggle bar has a first arc contact surface facing the curve of the linear buffer, and the first arc contact surface abuts against the output end of the linear buffer.

In combination with the foregoing implementation manner, in certain implementation manners of the present invention, the output end of the linear buffer has a second arc contact surface, and the second arc contact surface is adapted to the first arc contact surface.

In combination with the foregoing implementation manner, in certain implementation manners of the present invention, the linear buffer and the latch bolt assembly are relatively disposed on two sides of the shifting fork, and an extending direction of the linear buffer is consistent with a sliding direction of the latch bolt.

In combination with the above implementations, in certain implementations of the present invention, the linear buffer includes a one-way buffer.

In combination with the foregoing implementation manner, in certain implementation manners of the present invention, the linear buffer is installed in the bottom of the shifting fork, and is located and kept away from one side of the latch bolt, the first shifting strip is located the linear buffer is close to one end of the latch bolt, when the shifting fork is switched from the first position to the second position, the first shifting strip is compressed the output end of the linear buffer.

In combination with the above implementation manner, in certain implementation manners of the present invention, the shifting fork is provided with a connecting hole, and the connecting hole is used for connecting the handle.

One of the above technical solutions has at least one of the following advantages or beneficial effects: on the one hand, the first shifting strip is arranged on the shifting fork and is abutted to the output end of the linear buffer, so that the problem that the buffering stroke is greatly limited due to the fact that the buffer is directly connected with the shifting fork in the prior art is solved, the setting range of the linear buffer is not limited in the specific range of the side edge of the shifting fork, the space inside the shell is better utilized, the stroke of the selectable buffer is longer, and the buffering performance of the lock body is better. On the other hand, the linear buffer is fixed to be set up in the casing, and when the shift fork switched to the second position by first position, the output of linear buffer was compressed and produced the cushion effect to first group strip, has solved buffer oscillating problem in the course of the work among the conventional art, and the operation is more smooth and easy, stable, and the buffering effect is better, has improved the life of silence lock body greatly.

Drawings

The present invention will be further explained with reference to the accompanying drawings:

FIG. 1 is a schematic view of a shift fork according to an embodiment of the present invention in a second position;

fig. 2 is a schematic view of a state of the shift fork according to an embodiment of the present invention in the first position.

Detailed Description

This section will describe in detail the embodiments of the present invention, the preferred embodiments of which are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can visually and vividly understand each technical feature and the whole technical solution of the present invention, but it cannot be understood as a limitation to the scope of the present invention.

In the present invention, if there is a description of directions (up, down, left, right, front and back), it is only for convenience of description of the technical solution of the present invention, and it is not intended to indicate or imply that the technical features indicated must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

In the utility model, the meaning of a plurality of is one or more, the meaning of a plurality of is more than two, and the meaning of more than two is understood as not including the number; the terms "above", "below", "within" and the like are understood to include the instant numbers. In the description of the present invention, if there is any description of "first" and "second" only for the purpose of distinguishing technical features, it is not understood that relative importance is indicated or implied or that the number of indicated technical features is implicitly indicated or that the precedence of the indicated technical features is implicitly indicated.

In the present invention, unless otherwise explicitly defined, the terms "set," "install," "connect," and the like are to be understood in a broad sense, and may be directly connected or indirectly connected through an intermediary, for example; can be fixedly connected, can be detachably connected and can be integrally formed; either mechanically or electrically connected or capable of communicating with each other, either internally of the two elements or in an interactive relationship between the two elements. The technical field can reasonably determine the specific meaning of the words in the utility model by combining the specific content of the technical scheme.

Referring to fig. 1 and 2, an embodiment of the present invention provides a silent lock body, which includes a housing 1, a latch bolt assembly 2, a linear buffer 3, and a shift fork 4. Wherein, casing 1 has played the guard action to inside part as the structure frame of silence lock body, and the partial structure of having hidden casing 1 in the drawing is in order to show the utility model discloses a technical essential. The latch bolt assembly 2 is slidably mounted within the housing 1 and extends out of the housing 1.

The linear damper 3 is fixedly installed in the housing 1. A fork 4 is rotatably mounted in the housing 1, the fork 4 being intended to be connected to a handle (not shown). When the handle is pressed down, the handle can drive the shifting fork 4 to rotate. The shifting fork 4 is provided with a first shifting bar 42, and the first shifting bar 42 is abutted against the output end of the linear buffer 3.

Specifically, referring to fig. 2, when the handle is depressed to rotate the fork 4 to the first position, the latch bolt assembly 2 can be retracted within the housing 1. When the handle is released to release the fork 4, see fig. 1, the fork 4 is returned to the second position, and so on. In the process of releasing the handle, the output end 31 of the linear buffer 3 is pressed by the first dialing strip 42 and generates resistance to the first dialing strip 42, so that when the shifting fork 4 is switched from the first position to the second position, the linear buffer 3 can generate buffering force to the first dialing strip 42 to realize the mute buffering function.

On the one hand, through setting up first group strip 42 on shift fork 4, utilize first group strip 42 butt in output 31 of linear buffer 3, avoided the problem that the buffering stroke that leads to among the conventional art because of buffer and shift fork 4 lug connection is greatly limited, linear buffer 3's setting range is not restricted to the specific range of shift fork 4 side to utilize the inside space of casing 1 better, the stroke of optional buffer is longer, lock body shock-absorbing capacity is better. On the other hand, linear buffer 3 is fixed to be set up in casing 1, and when shift fork 4 switched to the second place by the primary importance, linear buffer 3's output 31 was compressed and produced the cushion effect to first group strip 42, has solved the buffer problem of swaying repeatedly in the course of the work among the traditional art, and the operation is more smooth and easy, stable, and the buffering effect is better, has improved the life of silence lock body greatly.

The latch bolt component 2 can be driven by the handle to retract into the shell 1, and the mode of an intelligent lock can be adopted, such as a mode of triggering a motor driving the latch bolt component 2 to stretch by rotating the handle to work. Referring to fig. 1 and 2, in some embodiments, the latch assembly 2 includes a latch 21 and a resilient return member 22, the latch 21 being slidably mounted within the housing 1 and extending out of the housing 1. The shifting fork 4 is provided with a second shifting bar 41, and the second shifting bar 41 is used for driving the latch bolt 21 to slide. When the handle is pressed down to rotate the shifting fork 4 to the first position, the second shifting bar 41 can drive the latch bolt 21 to retract into the shell 1; when the handle is released to release the shifting fork 4, the elastic reset part 22 can drive the latch bolt 21 to extend out of the shell 1, so that the linkage between the latch bolt 21 and the handle is realized.

Referring to fig. 1 and 2, in some embodiments, the latch assembly 2 includes a first limiting member 23 and a connecting shaft 24 extending along a sliding direction of the latch 21, the housing 1 is provided with a second limiting member 11, and the connecting shaft 24 is disposed through the second limiting member 11 and can slide back and forth relative to the second limiting member 11.

The latch bolt 21 is mounted at one end of the connecting shaft 24, and the elastic restoring component 22 is mounted between the latch bolt 21 and the second limiting component 11. The first limiting member 23 is mounted on the connecting shaft 24 and located on a side of the second limiting member 11 away from the latch bolt 21. A space 25 into which the second toggle bar 41 extends is formed between the first limiting member 23 and the second limiting member 11.

When the handle is pressed down to rotate the shifting fork 4 to the first position, referring to fig. 2, the second shifting bar 41 abuts against the first limiting member 23, so as to drive the connecting shaft 24 to slide in a direction away from the latch bolt 21, and the latch bolt 21 can extend into the housing 1. The resilient return member 22 is compressed by the latch 21 and the second stop 11. When the handle is released, the elastic reset component 22 returns to the initial state and drives the connecting shaft 24 to slide towards the direction close to the latch bolt 21, and the latch bolt 21 extends out of the shell 1. The first limiting member 23 can slide toward the direction close to the latch bolt 21 under the driving of the connecting shaft 24, and push the shifting fork 4 to switch from the first position to the second position, and the linear buffer 3 can buffer the shifting fork 4, thereby completing the door opening and silent door closing actions of the lock body.

It is understood that the elastic restoring member 22 can be directly sleeved outside the connecting shaft 24, and can also be directly connected to the latch bolt 21 and the second limiting member 11. Further, referring to fig. 1 and 2, the elastic restoring element 22 includes a spring, and the spring is sleeved outside the connecting shaft 24 and abuts between the latch bolt 21 and the second limiting element 11, so as to ensure that the spring is stably mounted on the connecting shaft 24, which is beneficial to the stable operation of the operation process.

It will be appreciated that the positions of the linear damper 3 and the first paddle 42 may be set appropriately according to the space inside the actual housing 1. Referring to fig. 1 and 2, in some embodiments, the linear damper 3 and the latch bolt 21 assembly 2 are oppositely disposed on both sides of the shift fork 4, and the extending direction of the linear damper 3 is the same as the sliding direction of the latch bolt 21, so as to fully utilize the transverse space in the housing 1, ensure that the linear damper 3 can achieve the maximum stroke, and achieve better damping effect.

Further, the linear damper 3 includes a one-way damper, and meets the requirement that the linear damper 3 generates damping to the shift fork 4 only when being pressed.

Further, referring to fig. 1 and 2, the linear damper 3 is mounted to the bottom of the shift fork 4 on a side away from the latch 21. The first stirring bar 42 is located at one end of the linear damper 3 close to the latch 21. When the shifting fork 4 is switched from the first position to the second position, the first shifting bar 42 compresses the output end 31 of the linear buffer 3, and the linear buffer 3 can generate resistance to the shifting fork 4, so that the effect of silent buffering is achieved.

Referring to fig. 1 and 2, in some embodiments, the first poking bar 42 has a first arc-shaped contact surface 421 curved towards the linear buffer 3, the first arc-shaped contact surface 421 abutting against the output end 31 of the linear buffer 3. The first arc contact surface 421 ensures that the fork 4 can always be in contact with the output end 31 of the linear damper 3 during the movement.

Further, the output end 31 of the linear buffer 3 is provided with a second arc-shaped contact surface 311, and the second arc-shaped contact surface 311 is matched with the first arc-shaped contact surface 421, so that the contact area between the output end 31 of the linear buffer 3 and the first shifting strip 42 is increased, the transmission stress is more stable, and the stable and smooth operation process is ensured.

Further, referring to fig. 1 and 2, the shifting fork 4 is provided with a connecting hole 43, and the connecting hole 43 is used for connecting a handle, so that transmission matching is realized, and the requirement of opening and closing the door is met.

In the description herein, references to the description of the term "example," "an embodiment," or "some embodiments," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The invention is not limited to the above embodiments, and those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the invention, and such equivalent modifications or substitutions are included in the scope defined by the claims of the present application.

Claims

1. A silent lock body, comprising:

a housing;

the linear buffer is fixedly arranged in the shell;

the shifting fork is rotatably arranged in the shell and provided with a first shifting strip, and the first shifting strip abuts against the output end of the linear buffer;

2. The silent lock body of claim 1, wherein the latch bolt assembly comprises a latch bolt and a resilient return member, the latch bolt is slidably mounted in the housing and extends out of the housing, the shift fork is provided with a second shift bar, and the second shift bar can drive the latch bolt to retract into the housing when the shift fork is rotated to the first position; when the shifting fork is released, the elastic resetting component can drive the latch bolt to extend out of the shell.

3. The silent lock according to claim 2, wherein the latch bolt assembly comprises a first limiting member and a connecting shaft extending along a sliding direction of the latch bolt, a second limiting member is disposed in the housing, the connecting shaft penetrates through the second limiting member and can slide back and forth relative to the second limiting member, the latch bolt is mounted at one end of the connecting shaft, the elastic reset component is mounted between the latch bolt and the second limiting member, the first limiting member is mounted on the connecting shaft and is located on a side of the second limiting member away from the latch bolt, and a space for the second toggle strip to extend into is formed between the first limiting member and the second limiting member.

4. A silent lock according to claim 3, wherein said elastic restoring member comprises a spring, said spring is sleeved outside said connecting shaft and abuts between said latch bolt and said second limiting member.

5. A silent lock body as claimed in claim 1, wherein the first deadbolt has a first arcuate contact surface curved towards the linear damper, the first arcuate contact surface abutting the output end of the linear damper.

6. A silent lock according to claim 5, wherein the output end of the linear damper has a second arcuate contact surface adapted to the first arcuate contact surface.

7. A silent lock body according to claim 2, wherein the linear damper comprises a one-way damper.

8. The silent lock according to claim 7, wherein the linear buffer and the latch assembly are disposed on opposite sides of the fork, and the linear buffer extends in the same direction as the sliding direction of the latch assembly.

9. The silent lock of claim 8, wherein the linear damper is mounted on the bottom of the fork and located on the side away from the latch bolt, the first toggle bar is located at the end of the linear damper close to the latch bolt, and the output end of the linear damper is compressed by the first toggle bar when the fork is switched from the first position to the second position.

10. A silent lock body as claimed in claim 1, wherein the fork is provided with a coupling hole for coupling with a handle.