Mute lock

Abstract

The utility model relates to a mute lock, which comprises a lock shell, and a magnetic tongue assembly, a handle shifting assembly, a shifting piece, a locking assembly and a lock cylinder assembly which are arranged in the lock shell, and is characterized in that a first mute structure which is propped against the magnetic tongue assembly is also arranged in the lock shell; the first mute structure is used for reducing friction force between the magnetic tongue assembly and the lock shell when the magnetic tongue assembly swings, the lower end of the magnetic tongue assembly is provided with a second mute structure abutting against the inner side wall of the lock shell, the second mute structure is used for limiting direct contact between the magnetic tongue assembly and the inner side wall of the lock shell when the magnetic tongue assembly swings, and the magnetic tongue assembly is further provided with a third mute structure. The third mute structure is used for limiting the magnetic tongue assembly to make direct contact with the inner side wall of the lock shell when the magnetic tongue assembly stretches out of the lock shell, and a fourth mute structure is further arranged in the lock shell and used for limiting and buffering the magnetic tongue assembly when the magnetic tongue assembly retracts into the lock shell. According to the scheme, the four mute structures are matched with one another, so that the mute effect is effectively achieved, and the use experience of consumers is improved.

Description

Technical Field

[0001] The utility model relates to the field of locks, in particular to a silent lock. Background Art

[0002] In a mechanical magnetic lock, when the door is closed, the magnets in its lock body attract each other to achieve the purpose of natural locking. When the handle is pressed down, the magnets in the lock body and the lock box can be separated to achieve the purpose of unlocking and opening the door.

[0003] In the currently existing mechanical magnetic locks, there are still some problems for consumers during use: when unlocking or locking the lock, the noise is relatively large, which affects the use experience of consumers.

[0004] For example, the publication number is CN220621455U, and the patent name is a silent mechanical magnetic lock. Through the setting of the first silent block and the second silent block, wherein the first silent block is used to limit the magnetic tongue assembly to maintain the state of protruding out of the lock body, and the second silent block is used to limit the magnetic tongue assembly to maintain the state of retracting into the lock body. Thus, when the mechanical magnetic lock is in use, it can effectively play a role in silencing and improve the use experience of consumers.

[0005] The above patent is a utility model patent applied by the applicant earlier. Although in this patent, to a certain extent, it solves the technical problem of relatively large noise during the unlocking or locking operation of the mechanical magnetic lock. However, according to the subsequent feedback from consumers by the applicant, it is known that such a structure of the mechanical magnetic lock still has relatively large noise during unlocking or locking.

[0006] Therefore, how to overcome the above existing defects has become an important issue that needs to be urgently solved by those skilled in the art. Summary of the Utility Model

[0007] The utility model overcomes the above technical deficiencies and provides a silent lock.

[0008] To achieve the above object, the utility model adopts the following technical solutions:

[0009] A silent lock includes a lock case and a magnetic tongue assembly, a handle dial cam assembly, a toggling member, a locking assembly, and a lock core assembly disposed within the lock case. It is characterized in that: a first silent structure abutting against the magnetic tongue assembly is further provided within the lock case, and the first silent structure is used to reduce the frictional force between the magnetic tongue assembly and the lock case when the magnetic tongue assembly swings; a second silent structure abutting against the inner side wall of the lock case is provided at the lower end of the magnetic tongue assembly, and the second silent structure is used to limit direct contact between the magnetic tongue assembly and the inner side wall of the lock case when the magnetic tongue assembly swings; a third silent structure is further provided on the magnetic tongue assembly, and the third silent structure is used to limit direct contact between the magnetic tongue assembly and the inner side wall of the lock case when the magnetic tongue assembly extends out of the lock case; a fourth silent structure is further provided within the lock case, and the fourth silent structure is used for limiting and buffering the magnetic tongue assembly when the magnetic tongue assembly retracts into the lock case.

[0010] Further, the magnetic tongue assembly includes a lock tongue and a lock tongue rod with one end extending into the lock tongue. A lock tongue rod crank is provided at the other end of the lock tongue rod. The end of the lock tongue rod close to the lock tongue rod crank is rotatably connected to the lock case. A first magnet is provided within the lock tongue, and the lock tongue includes a reverse buckle structure for mounting the first magnet.

[0011] Further, the first silent structure includes a rib provided on the bottom plate of the lock case along the swinging path of the lock tongue, and the lock tongue always remains in contact with the rib when swinging.

[0012] Further, the second silent structure includes a first rubber pad connected to the outer end of the lock tongue rod, and the first rubber pad always remains in abutting contact with the inner side wall of the lock case.

[0013] Further, the third silent structure includes a second rubber pad provided at the upper end of the lock tongue, and the second rubber pad abuts against the inner side wall of the lock case when the lock tongue extends out of the lock case.

[0014] Further, a limiting projection is provided within the lock case. When the lock tongue retracts into the lock case, the inner end of the lock tongue abuts against the limiting projection. The fourth silent structure includes a rubber sleeve sleeved on the limiting projection.

[0015] Further, an installation cavity is formed within the lock tongue. The reverse buckle structure includes elastic buckles on the side wall of the lock tongue. The elastic buckles extend towards the inner side of the installation cavity. Two elastic buckles are symmetrically provided, and the first magnet is limited and installed within the installation cavity through the elastic buckles.

[0016] Further, a buckle box is further included. The buckle box includes a buckle box body and a fixing plate fixedly connected to the buckle box body. A second magnet is provided within the buckle box body. One end of the buckle box body facing the fixing plate is provided with a cavity for the magnetic tongue assembly to extend into / retract from, and a fifth silent structure is installed within the cavity.

[0017] Furthermore, the fifth sound-proofing structure includes a rubber inner sleeve installed in the cavity and adapted to the shape of the cavity, and the rubber inner sleeve includes two symmetrically arranged buffer slopes.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] 1. When the silent lock of this case is locked / unlocked, the magnetic tongue assembly will swing, thereby extending / retracting into the lock shell. In this case, through the arrangement of the first silent structure, the second silent structure, the third silent structure and the fourth silent structure, when the magnetic tongue assembly extends / retracts into the lock shell, the four silent structures cooperate with each other to effectively achieve a silent effect, and at the same time, can effectively limit and buffer the magnetic tongue assembly, thereby improving the consumer's experience.

[0020] 2. In this case, by installing the fifth silent structure in the cavity of the buckle box body, when the silent lock of this case is locked / unlocked, it can further effectively avoid the magnetic tongue assembly from directly rubbing against the inner wall of the cavity of the buckle box body and generating noise when the magnetic tongue assembly is extended / retracted into the cavity, thereby effectively achieving a silent effect, and at the same time can effectively limit and buffer the magnetic tongue assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the unlocked state of the silent lock in this case.

[0022] Figure 2 It is a schematic diagram of the locked state of the silent lock in this case.

[0023] Figure 3 This case Figure 2 Enlarged view of point A in the middle.

[0024] Figure 4 It is a schematic diagram of the structure of the magnetic tongue assembly in this case.

[0025] Figure 5 It is a schematic diagram of the buckle box structure in this case. DETAILED DESCRIPTION

[0026] The following examples further illustrate the features of the present invention and other related features to facilitate understanding by those skilled in the art:

[0027] like Figures 1 to 5 As shown, the silent lock provided in this case specifically includes a lock housing 100 and a magnetic tongue assembly 101, a handle and peach assembly 102, a toggle 103, a locking assembly 104 and a lock core assembly 105 arranged in the lock housing 100. Among them, the toggle 103 is rotatably connected to the lock body, and is arranged between the magnetic tongue assembly 101, the handle and peach assembly 102 and the locking assembly 104, and is used for transmission among the three.Figures 1 - 2 , the positional relationships between the components are described herein according to the illustrations. Among them, the handle dial cam assembly 102 is disposed on the right side of the magnetic tongue assembly, the locking assembly 104 is disposed below the magnetic tongue assembly 101 and the handle dial cam assembly 102, and the lock core assembly 105 is disposed below the locking assembly 104.

[0028] It should be noted that the structures and positional relationships of the above-mentioned components, as well as the overall locking / unlocking working principle of the silent lock in this case, have been disclosed in the patent document with the publication number CN220621455U and the patent name of a silent mechanical magnetic lock. For details, please refer to this document, and the same content as that in this document will not be elaborated herein.

[0029] The main improvements of this case over the prior art will be described in detail below. Please refer to Figures 1 - 3, a first silent structure 1 abutting against the magnetic tongue assembly 101 is further provided inside the lock case 100 of this case. The first silent structure 1 is used to reduce the frictional force between the magnetic tongue assembly 101 and the lock case 100 when the magnetic tongue assembly 101 swings. Through the setting of the first silent structure 1, during the process of the magnetic tongue assembly 101 swinging out / retracting into the lock case 100, it effectively avoids the direct friction between the magnetic tongue assembly 101 and the bottom plate of the lock case 100, thereby eliminating the scraping sound between the two and achieving the silent effect. A second silent structure 2 abutting against the inner side wall of the lock case 100 is provided at the lower end of the magnetic tongue assembly 101. The second silent structure 2 is used to limit the direct contact between the magnetic tongue assembly 101 and the inner side wall of the lock case 100 when the magnetic tongue assembly 101 swings. Through the setting of the second silent structure 2, during the process of the magnetic tongue assembly 101 swinging out / retracting into the lock case 100, the second silent structure 2 always remains in contact with the inner side wall of the lock case 100. In this way, it effectively avoids the collision between the magnetic tongue assembly 101 and the inner side wall of the lock case 100 and the generation of noise during the process of the magnetic tongue assembly 101 swinging out / retracting into the lock case 100, and effectively plays the role of silence. A third silent structure 3 is further provided on the magnetic tongue assembly 101. The third silent structure 3 is used to limit the direct contact between the magnetic tongue assembly 101 and the inner side wall of the lock case 100 when the magnetic tongue assembly 101 extends out of the lock case 100. Specifically, when the silent lock of this case is locked, during the process of the magnetic tongue assembly 101 swinging out of the lock case 100, due to the setting of the third silent structure 3, it can effectively avoid the collision between the upper end of the magnetic tongue assembly 101 and the inner side wall of the lock case 100 and the generation of noise, effectively playing the role of silence, and at the same time, it can also play the role of limiting and buffering when the magnetic tongue assembly 101 extends out of the lock case 100. A fourth silent structure 4 is further provided inside the lock case 100. The fourth silent structure 4 is used to limit and buffer the magnetic tongue assembly 101 when the magnetic tongue assembly 101 retracts into the lock case 100. When the silent lock of this case is unlocked, during the process of the magnetic tongue assembly 101 swinging and retracting into the lock case 100, due to the setting of the fourth silent structure 4, it can effectively avoid the collision between the magnetic tongue assembly 101 and the limiting protrusion 41 inside the lock case 100 and the generation of noise, effectively playing the role of silence, and at the same time, it can also play the role of buffering when the magnetic tongue assembly 101 retracts into the lock case 100.

[0030] Further, please refer to Figures 1 - 4The magnetic tongue assembly 101 includes a lock tongue 1011, a lock tongue rod 1012 with one end extending into the lock tongue 1011, a lock tongue rod crank arm 1013 is provided at the other end of the lock tongue rod 1012, and one end of the lock tongue rod 1012 close to the lock tongue rod crank arm 1013 is rotatably connected to the lock housing 100. In specific implementation, the rotational connection between the lock tongue rod 1012 and the lock housing 100 can be rotatably connected to the lock housing 100 through a rotating shaft, and the rotating shaft can be integrally formed with the lock housing 100 or fixed to the lock housing by means of threaded connection or riveting. For the convenience of production and manufacturing, the present case preferably uses a rotating shaft integrally formed with the lock housing 100 for rotational connection. A first magnet 1014 is provided in the lock tongue 1011, and the lock tongue 1011 includes a buckle structure 6 for mounting the first magnet 1014. The provision of the reverse buckle structure 6 facilitates the installation of the first magnet 1014 and can also effectively resist the first magnet 1014 to prevent the first magnet 1014 from escaping from the lock tongue 1011 .

[0031] See also Figures 1 - 3 Specifically, the first mute structure 1 includes a convex strip 11 arranged on the bottom plate of the lock housing 100 along the swinging path of the lock tongue 1011, and the lock tongue 1011 always keeps in contact with the convex strip 11 when it swings. In specific implementation, the convex strip 11 is an upwardly protruding reinforcing rib integrally formed with the lock housing 100. In order to minimize the contact area between the convex strip 11 and the lock tongue 1011 to achieve a better mute effect, the convex strip 11 can be set as a slender strip as much as possible on the premise of being able to support the stable swing of the lock tongue 1011; at the same time, the convex strip 11 needs to be set in an arc shape so that its contact position with the lock tongue 1011 on the swinging path of the lock tongue 1011 is fixed to avoid the generation of excess noise caused by the poor swinging of the lock tongue 1011.

[0032] like Figures 1 - 4 As shown, the second mute structure 2 includes a first rubber pad 21 connected to the outer end of the lock tongue rod 1012, and the first rubber pad 21 always maintains an abutment state with the inner side wall of the lock housing 100. By setting the first rubber pad 21 that always maintains an abutment state with the inner side wall of the lock housing 100, it is effectively avoided that when the lock tongue rod 1012 swings, the lock tongue rod 1012 directly collides with the inner side wall of the lock housing 100 to generate noise, which effectively plays a mute role. At the same time, the deformation of the first rubber pad 21 plays a role of limiting buffer. For the convenience of production, the first rubber pad 21 is integrally formed and manufactured. In specific implementation, the first rubber pad 21 is detachably connected to the lock tongue rod 1012, which facilitates the assembly and replacement of the first rubber pad 21.

[0033] like Figures 1 - 3As shown, the third silent structure 3 includes a second rubber pad 31 disposed on the upper end of the lock tongue 1011. When the lock tongue 1011 extends out of the lock housing 100, the second rubber pad 31 abuts against the inner wall of the lock housing 100. When the silent lock of the present case is locked, in the process of the lock tongue 1011 swinging out of the lock housing 100, due to the provision of the third silent structure 3, it is possible to effectively prevent the upper end of the lock tongue 1011 from directly colliding with the inner wall of the lock housing 100 to generate noise, thereby effectively achieving a silent effect; at the same time, the deformation of the second rubber pad 31 plays a role in limiting and buffering the lock tongue 1011. Similarly, for the convenience of production, the second rubber pad 31 is integrally formed and manufactured; for the convenience of assembly and replacement of the second rubber pad 31, the second rubber pad 31 is detachably connected to the lock tongue 1011.

[0034] like Figures 1 - 3 As shown, a limiting protrusion 41 is provided in the lock shell 100. When the lock tongue 1011 is retracted into the lock shell 100, the inner end of the lock tongue 1011 abuts against the limiting protrusion 41. The fourth silent structure 4 includes a rubber sleeve 42 sleeved on the limiting protrusion 41. When the silent lock of this case is unlocked, the lock tongue 1011 swings and retracts into the lock shell 100. Since the rubber sleeve 42 is sleeved on the limiting protrusion 41, it can effectively prevent the lock tongue 1011 from directly colliding with the limiting protrusion 41 and generating noise, which effectively plays a role of silence. At the same time, it can also play a buffering role for the lock tongue 1011 to abut against the limiting protrusion 41 after it is retracted into the lock shell 100. Similarly, for the convenience of production, the rubber sleeve 42 is integrally formed and manufactured; for the convenience of assembly and replacement of the rubber sleeve 42, the rubber sleeve 42 is detachably sleeved on the limiting protrusion 41.

[0035] like Figures 1 - 4 As shown, a mounting cavity 61 is provided in the lock tongue 1011, and the reverse buckle structure 6 includes an elastic buckle 62 on the side wall of the lock tongue 1011, and the elastic buckle 62 is extended toward the inner side of the mounting cavity 61. Two elastic buckles 62 are symmetrically provided, and the first magnet 1014 is limitedly installed in the mounting cavity 61 by the elastic buckle 62. In specific implementation, in order to facilitate production and installation, the elastic buckle 62 and the lock tongue 1011 are integrally formed and manufactured, and the elastic buckle 62 is elastic. The elastic buckle 62 is provided to facilitate the installation of the first magnet 1014, and can also effectively resist the first magnet 1014 to prevent the first magnet 1014 from slipping out of the lock tongue 1011.

[0036] like Figure 1 , Figure 2 , Figure 5As shown in the figure, the mute lock of this case further includes a buckle box 200, which includes a buckle box body 201 and a fixing plate 202 fixedly connected to the buckle box body 201. The fixing plate 202 is used to install the buckle box 200 on the door frame after being fixedly connected to the buckle box body 201, facilitating the disassembly and assembly of the buckle box 200. A second magnet 2011 is provided inside the buckle box body, and a cavity 2012 for the magnetic tongue assembly 101 to extend / retract is provided at one end of the buckle box body 201 facing the fixing plate 202, and a fifth mute structure 5 is installed in the cavity 2012.

[0037] Further, as Figure 1 , Figure 2 , Figure 5 shown, the fifth mute structure 5 includes a rubber inner sleeve 51 installed in the cavity 2012 and adapted to the shape of the cavity 2012. It should be noted that the rubber inner sleeve 51 is adapted to the shape of the cavity 2012, that is to say, the rubber inner sleeve 51 completely fits in the cavity 2012 and completely covers the inner side wall of the buckle box body 201 where the cavity 2012 is located, and its upper end buckles the top of the buckle box body 201. By setting the rubber inner sleeve 51 with such a structure in the cavity 2012, when the mute lock of this case is locked / unlocked, when the magnetic tongue assembly 3, that is, the lock tongue 1011, extends / retracts into the cavity 2012, it can effectively prevent the lock tongue 1011 from directly rubbing against the inner side wall of the cavity 2012 of the buckle box body 201 to generate noise, thus effectively achieving the mute effect, and at the same time, it can further effectively play a role in limiting and buffering the magnetic tongue assembly. Specifically, for convenient production, the rubber inner sleeve 51 is integrally formed; for convenient assembly and replacement of the rubber inner sleeve 51, the rubber inner sleeve 51 is detachably arranged in the cavity 2012. In this case, preferably, the detachable connection method of the rubber inner sleeve 51 is to press and set the rubber inner sleeve 51 through the fixing plate 202. The rubber inner sleeve 51 of this case includes two symmetrically arranged buffer inclined surfaces 511. In the prior art mechanical magnetic lock, when locking, the lock tongue 1011 directly pops out from the lock shell 100 and then directly extends into the cavity 2012. In this case, by setting two buffer inclined surfaces 511 on the rubber inner sleeve 51, when the mute lock of this case is locked, the lock tongue 1011 slides in from the flipping inclined surface, thereby reducing the friction force and further improving the mute effect.

[0038] As described above, this case protects a mute lock, and all technical solutions identical or similar to this case should be regarded as falling within the protection scope of this case.

Claims

1. A silent lock, comprising a lock housing (100) and a magnetic tongue assembly (101), a handle peach assembly (102), a toggle member (103), a locking assembly (104) and a lock core assembly (105) arranged in the lock housing (100), characterized in that: The lock housing (100) is further provided with a first silent structure (1) abutting against the magnetic tongue assembly (101), the first silent structure (1) being used to reduce the friction between the magnetic tongue assembly (101) and the lock housing (100) when the magnetic tongue assembly (101) swings, and the lower end of the magnetic tongue assembly (101) is provided with a second silent structure (2) abutting against the inner side wall of the lock housing (100), the second silent structure (2) being used to limit the magnetic tongue assembly (101) from directly contacting the lock housing (100) when it swings. The magnetic tongue assembly (101) is in contact with the inner wall of the lock housing (100), and a third silent structure (3) is also provided on the magnetic tongue assembly (101). The third silent structure (3) is used to limit the magnetic tongue assembly (101) from directly contacting the inner wall of the lock housing (100) when the magnetic tongue assembly (101) is extended out of the lock housing (100). A fourth silent structure (4) is also provided in the lock housing (100). The fourth silent structure (4) is used to limit and buffer the magnetic tongue assembly (101) when the magnetic tongue assembly (101) is retracted into the lock housing (100).

2. A silent lock according to claim 1, characterized in that: The magnetic tongue assembly (101) comprises a lock tongue (1011), a lock tongue rod (1012) with one end extending into the lock tongue (1011), a lock tongue rod crank arm (1013) being provided at the other end of the lock tongue rod (1012), one end of the lock tongue rod (1012) close to the lock tongue rod crank arm (1013) being rotatably connected to the lock housing (100), a first magnet (1014) being provided in the lock tongue (1011), and the lock tongue (1011) comprising a reverse buckle structure (6) for mounting the first magnet (1014).

3. A silent lock according to claim 2, characterized in that: The first silent structure (1) comprises a convex strip (11) arranged on the bottom plate of the lock housing (100) along the swinging path of the lock tongue (1011), and the lock tongue (1011) always maintains contact with the convex strip (11) when swinging.

4. A silent lock according to claim 2, characterized in that: The second noise-reducing structure (2) comprises a first rubber pad (21) connected to the outer end of the lock tongue rod (1012), and the first rubber pad (21) always maintains an abutment state with the inner wall of the lock housing (100).

5. A silent lock according to claim 2, characterized in that: The third silent structure (3) comprises a second rubber pad (31) arranged at the upper end of the lock tongue (1011); when the lock tongue (1011) extends out of the lock housing (100), the second rubber pad (31) abuts against the inner wall of the lock housing (100).

6. A silent lock according to claim 2, characterized in that: A limiting protrusion (41) is provided in the lock housing (100); when the lock tongue (1011) is retracted into the lock housing (100), the inner end of the lock tongue (1011) abuts against the limiting protrusion (41); and the fourth silent structure (4) comprises a rubber sleeve (42) sleeved on the limiting protrusion (41).

7. A silent lock according to claim 2, characterized in that: The lock tongue (1011) is provided with a mounting cavity (61), the reverse buckle structure (6) comprises an elastic buckle (62) on the side wall of the lock tongue (1011), the elastic buckle (62) is extended toward the inside of the mounting cavity (61), two elastic buckles (62) are symmetrically arranged, and the first magnet (1014) is limitedly mounted in the mounting cavity (61) by the elastic buckle (62).

8. A silent lock according to any one of claims 1 to 7, characterized in that: It also includes a buckle box (200), the buckle box (200) including a buckle box body (201) and a fixing plate (202) fixedly connected to the buckle box body (201), a second magnet (2011) is arranged in the buckle box body, and a cavity (2012) for the magnetic tongue assembly (101) to extend into / retract is arranged at one end of the buckle box body (201) facing the fixing plate (202), and a fifth mute structure (5) is installed in the cavity (2012).

9. A silent lock according to claim 8, characterized in that: The fifth sound-proofing structure (5) comprises a rubber inner sleeve (51) installed in the cavity (2012) and adapted to the shape of the cavity (2012); the rubber inner sleeve (51) comprises two symmetrically arranged buffer slopes (511).

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