Mute mechanism and lock body with same

Abstract

The utility model relates to a mute mechanism and a lock body with the same, and belongs to the technical field of locks. The mute mechanism comprises a dead tongue guide shaft used for providing guide support for the dead tongue assembly, and the periphery of the dead tongue guide shaft is coated with a flexible shaft sleeve; the dead bolt noise reduction pad and the inclined bolt noise reduction pad are mounted between the lock body bottom plate and the lock body panel; the damping structure is arranged on the latch bolt assembly; the damping structure comprises a damper fixed on the lock body bottom plate and a latch bolt block sliding on the lock body bottom plate, a damping gear is arranged on one side of the damper, and a straight tooth section in meshing transmission with the damping gear is arranged on one side of the latch bolt block. According to the utility model, the contact matching parts between the dead bolt assembly and the lock shell as well as between the latch bolt assembly and the door frame pinch plate in the lock body are respectively subjected to mute structure optimization, so that the silencing and mute effects are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of lock structures, and more specifically, to the silent structure part of locks. Background Art

[0002] In the field of locks, in order to meet user needs and improve the experience, noise reduction has always been a key focus in the technological innovation of locks. The sources of lock body noise mainly include two aspects. On the one hand, during the process of opening and closing the door, contact friction occurs between the internal components of the lock body and between each component and the lock housing. On the other hand, during the extension and retraction of the lock tongue, there will be varying degrees of contact collision between the lock tongue and the lock body panel as well as the door frame buckle. Among them, the diagonal tongue will collide with the panel when it pops out, generating a lot of noise, and the dead tongue will rub against the panel when it extends and retracts, generating noise. Especially at night when it is quiet, the noise during locking and unlocking is particularly obvious.

[0003] Although there are many technical solutions to solve such problems in the prior art, most of these solutions will bring other problems such as complex structure and high failure rate while improving such problems.

[0004] In view of the above, this application will provide a solution for noise reduction of the lock body to improve product performance. Summary of the Utility Model

[0005] The utility model aims to solve the various problems mentioned above, and further provides a silent mechanism and a lock body with such a mechanism.

[0006] In a first aspect, the utility model discloses a silent mechanism for a lock body, which is configured on the lock housing to reduce the noise of the lock body. Specifically, it includes:

[0007] A dead tongue guide shaft for providing guiding support to the dead tongue assembly, with a flexible shaft sleeve wrapped around the outer periphery of the dead tongue guide shaft;

[0008] A dead tongue noise reduction pad and a diagonal tongue noise reduction pad installed between the lock body bottom plate and the panel; and

[0009] A damping structure configured on the diagonal tongue assembly;

[0010] The damping structure includes a damper fixed to the lock body bottom plate and a diagonal tongue block sliding on the lock body bottom plate. One side of the damper is provided with a damping gear, and one side of the diagonal tongue block is provided with a straight tooth section meshing with the damping gear for transmission.

[0011] Further, the lock housing is jointly composed of a bottom plate, a cover plate and a panel. The bottom plate is used for installing lock body components, the cover plate is installed on the bottom plate, and the panel is located on one side of the bottom plate and the cover plate, and is respectively provided with a dead tongue hole and a diagonal tongue hole.

[0012] Further, the stationary tongue assembly is slidably adapted to the stationary tongue guide shaft through a guide groove formed therein, and the guide groove is in contact and cooperation with the flexible bearing.

[0013] Further, the bottom plate is respectively provided with molding grooves corresponding to the stationary tongue hole and the inclined tongue hole of the panel, and the stationary tongue noise reduction pad and the inclined tongue noise reduction pad are correspondingly installed in the molding grooves of the bottom plate.

[0014] Further, the inclined tongue assembly is installed in an inclined tongue assembly installation groove formed in the bottom plate, and the inclined tongue assembly installation groove communicates with the inclined tongue hole formed in the panel.

[0015] Further, the inclined tongue assembly includes an inclined tongue spring, an inclined tongue block, an inclined tongue and an inclined tongue insert; the inclined tongue block is pressed into the inclined tongue assembly installation groove by the inclined tongue spring, the inclined tongue is installed at the end of the inclined tongue block and is slidably adapted to the inclined tongue hole of the panel, and the inclined tongue insert is embedded in the middle of the inclined tongue and the slope height thereof is slightly greater than the slope height of the inclined tongue.

[0016] Further, both the inclined tongue insert and the flexible bushing are made of POM material.

[0017] In a second aspect, the present utility model discloses a lock body, and the lock body has the silent mechanism as described above.

[0018] For the silent mechanism of the present utility model and the lock body having this mechanism, by analyzing several noise sources of the stationary tongue assembly and the inclined tongue assembly during the use of the lock body, the contact and cooperation parts between the stationary tongue assembly and the inclined tongue assembly inside the lock body and the lock housing and between the lock body and the door frame buckle plate are respectively optimized in terms of the silent structure, so as to achieve the effect of noise elimination and silencing. A flexible bushing and a stationary tongue noise reduction pad are added to the stationary tongue part. On the one hand, a damping structure for improving buffering and reducing impact is added to the inclined tongue part, and on the other hand, an inclined tongue noise reduction pad is added. Through the silent structure design in multiple dimensions, the noise generated by friction and impact is reduced to the greatest extent, and the overall silent effect is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 : Schematic structural diagram of the silent electronic lock in Embodiment 1;

[0020] Figure 2 : Schematic structural diagram of the inclined tongue assembly;

[0021] Figure 3 : Schematic diagram of the damping structure of the inclined tongue assembly;

[0022] In the figure, 1 is the dead tongue assembly, 11 is the inclined tongue assembly mounting groove, 2 is the dead tongue noise reduction pad, 3 is the dead tongue guide shaft, 31 is the flexible bushing, 4 is the motor box, 5 is the dead tongue shifting block, 6 is the inclined tongue assembly, 61 is the inclined tongue spring, 62 is the inclined tongue block, 62a is the straight tooth section, 63 is the inclined tongue, 64 is the inclined tongue insert block, 7 is the damper, 71 is the damping gear, 8 is the inclined tongue noise reduction pad, 9 is the bottom plate, 10 is the panel, 11 is the inclined tongue assembly mounting groove. Detailed implementation mode

[0023] The following will make the following detailed description of the present invention with reference to the drawings.

[0024] Embodiment 1

[0025] This embodiment relates to a silent electronic lock, and the silent electronic lock realizes noise reduction of the lock body through a silent structure built in the lock body. As Figure 1 shown, the silent electronic lock includes a lock housing and a motor box 4, a dead tongue shifting block 5, a dead tongue assembly 1 and an inclined tongue assembly 6 disposed inside the lock housing; wherein, the lock housing is jointly composed of a bottom plate 9, a cover plate (not shown in the figure) and a panel 10, the bottom plate 9 is used for installing lock body components, the cover plate is installed on the bottom plate 9, and the panel 10 is located on one side of the bottom plate and the cover plate. The dead tongue assembly 3 and the inclined tongue assembly 4 are respectively installed inside the lock housing, and a dead tongue hole and an inclined tongue hole corresponding to the dead tongue assembly 3 and the inclined tongue assembly 4 are respectively opened on the panel 10.

[0026] The bottom plate 9 is fixed with a dead tongue guide shaft 31, and the dead tongue assembly 3 is slidably adapted to the dead tongue guide shaft 31 through a guide groove opened on itself. The dead tongue assembly 3 is driven and controlled by a motor box 5 installed on the lock housing 1, the motor box 5 drives the dead tongue shifting block 6, and the dead tongue shifting block 6 is used to drive the dead tongue assembly 3 to reciprocate inside the lock housing 1.

[0027] During the telescopic process of the dead tongue assembly 1, the dead tongue assembly 1 contacts the dead tongue guide shaft 3 on the one hand, and on the other hand, it contacts the panel 10 when the dead tongue extends and retracts. Therefore, the first improvement measure made in this embodiment is: a flexible bushing 31 made of POM material is sleeved outside the dead tongue guide shaft 3, and the flexible bushing 31 directly contacts the dead tongue assembly 1 to avoid direct contact between the metal shaft and the dead tongue assembly 1. The second improvement measure is: a shaped groove is opened on the bottom plate 9, and a dead tongue noise reduction pad 2 is installed in the shaped groove; since the dead tongue noise reduction pad 2 is arranged inside the panel 10, during the contact process between the dead tongue assembly 1 and the panel 10, the dead tongue assembly 1 will directly contact the dead tongue noise reduction pad 2, thereby reducing frictional noise.

[0028] The bottom plate 9 is formed with a latch assembly installation groove 11, which is connected to the latch hole of the panel 10, and the latch assembly 6 is movably installed in the latch assembly installation groove 11. The latch assembly 6 includes a latch spring 61, a latch block 62, a latch 63 and a latch insert 64; wherein, the latch block 62 is elastically pressed into the latch assembly installation groove 11 by the latch spring 61, that is, one end of the latch spring 61 is pressed against the latch assembly installation groove 11, and the other end maintains the thrust of the latch block 62 toward the latch hole. The latch 63 is installed at the end of the latch block 62 and slidably fits into the latch hole of the panel 10. The latch insert 64 is made of POM material, which is embedded in the middle of the latch 63 and its slope height is slightly greater than the slope height of the latch 63. Through this structural optimization, when the inclined tongue assembly 6 contacts the door frame pinch plate, the inclined tongue 63 can be prevented from directly contacting the door frame pinch plate. Instead, the inclined tongue insert 64 on the inclined tongue 63 contacts the door frame pinch plate, thereby avoiding metal-to-metal collision noise.

[0029] The bottom plate 9 is also fixed with a damper 7, which is located on one side of the mounting groove 11 of the inclined tongue assembly and is linked with the inclined tongue block 62. Specifically, a damping gear 71 is provided on one side of the damper 7, and the outer side of the inclined tongue block 62 has a spur gear segment 62a adapted to mesh with the damping gear 71. Through the action cooperation between the damper 7 and the inclined tongue block 62, the impact force generated by the inclined tongue assembly 6 during the rebound process can be effectively reduced, thereby improving the mute effect.

[0030] In addition, similar to the dead tongue assembly 1, an oblique tongue noise reduction pad 8 is also provided between the oblique tongue assembly 6 and the panel 10, so as to reduce the noise generated by the oblique tongue assembly 6 during the contact process with the panel 10. The installation form and structure of the oblique tongue noise reduction pad 8 are the same as those of the dead tongue noise reduction pad 2, and will not be repeated here.

[0031] A silent electronic lock of this embodiment has the following working process:

[0032] When a correct external signal is given to the motor box 4, the motor box 4 rotates, driving the dead bolt block 5 to drive the dead bolt assembly 1 to slide along the dead bolt guide shaft 3 inside the lock body to achieve door opening and closing; at this time, because a flexible shaft sleeve is provided on the outside of the dead bolt guide shaft 3, and a dead bolt noise reduction pad 2 is installed on the lock body panel, the entire dead bolt assembly 1 does not directly rub or collide with iron parts during the sliding process, thereby achieving a silent effect.

[0033] When the inclined tongue assembly 6 contacts the doorframe buckle plate, since the inclined tongue insert 64 made of POM material is installed on the inclined tongue 63 and its sloping surface is higher than that of the inclined tongue 63, the inclined tongue insert 64 will replace the inclined tongue 63 to contact and collide with the doorframe buckle plate, avoiding the noise caused by the direct contact and collision between the inclined tongue 63 and the doorframe buckle plate; at the same time, due to the presence of the inclined tongue noise reduction pad 8, the noise generated by the sliding contact between the inclined tongue 63 and the panel is further reduced.

[0034] After the door is closed, the inclined tongue 63 pops out into the inclined tongue groove of the doorframe buckle plate under the action of the inclined tongue spring 61. During this process, the inclined tongue block 62 meshes with the damping gear 71 of the damper 7 through the straight tooth section 62a provided on one side of it. At this time, the damper 7 will generate buffering, and finally the inclined tongue assembly 6 collides with the inclined tongue noise reduction pad 8 to achieve the mute effect.

[0035] For the mute electronic lock of this embodiment, the fixed tongue assembly and the inclined tongue assembly inside the lock body are respectively optimized in design, so as to avoid the frictional collision generated when the lock tongue directly contacts the lock body and the doorframe buckle plate, thereby reducing noise, improving the mute effect and enhancing the user experience.

Claims

1. A silent mechanism is arranged on the lock housing to reduce the noise of the lock body, characterized in that: include: A dead bolt guide shaft for providing guide support for the dead bolt assembly, wherein the outer periphery of the dead bolt guide shaft is covered with a flexible sleeve; The dead tongue noise reduction pad and the inclined tongue noise reduction pad installed between the lock body bottom plate and the panel; as well as A damping structure configured on the latch bolt assembly; The damping structure comprises a damper fixed on the lock body bottom plate and an inclined tongue block sliding on the lock body bottom plate. One side of the damper is provided with a damping gear, and one side of the inclined tongue block is provided with a spur tooth section meshing with the damping gear for transmission.

2. The mute mechanism according to claim 1, characterized in that: The lock housing is composed of a base plate, a cover plate and a panel. The base plate is used to install the lock body components. The cover plate is installed on the base plate. The panel is located on one side of the base plate and the cover plate and is respectively provided with a dead bolt hole and an inclined bolt hole.

3. The mute mechanism according to claim 1, characterized in that: The dead tongue component is slidably adapted on the dead tongue guide shaft through a guide groove provided therein, and the guide groove is in contact with the flexible bearing.

4. The mute mechanism according to claim 1, characterized in that: The bottom plate is provided with grooves at two locations corresponding to the dead tongue hole and the oblique tongue hole of the panel, and the dead tongue noise reduction pad and the oblique tongue noise reduction pad are correspondingly installed in the grooves of the bottom plate.

5. The mute mechanism according to claim 1, characterized in that: The inclined tongue component is installed in an inclined tongue component installation groove provided on the bottom plate, and the inclined tongue component installation groove is connected with the inclined tongue hole provided on the panel.

6. The mute mechanism according to claim 5, characterized in that: The inclined tongue assembly comprises an inclined tongue spring, an inclined tongue block, an inclined tongue and an inclined tongue insert; the inclined tongue block is pressed into the installation groove of the inclined tongue assembly by the inclined tongue spring, the inclined tongue is installed at the end of the inclined tongue block and slidably fits into the inclined tongue hole of the panel, and the inclined tongue insert is embedded in the middle of the inclined tongue and its slope height is slightly greater than the slope height of the inclined tongue.

7. The mute mechanism according to claim 6, characterized in that: The oblique tongue insert and the flexible shaft sleeve are both made of POM material.

8. A lock body, characterized in that: The lock body has a silent mechanism as described in any one of claims 1 to 7.

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