Mechanical lock device

Abstract

The utility model discloses a mechanical lock device which comprises a lock tongue and a lock groove, the lock tongue comprises an extension plate, the extension plate is connected in the lock groove in a sliding mode, a sliding plate is arranged on the extension plate, and a first spring and an air bag which are arranged in parallel are arranged between the sliding plate and an installation plate in the lock groove. The first spring and the air bag are arranged between the spring bolt and the lock groove, so that when the lock is impacted by external force, the spring bolt part can be reset through the first spring, an express card is clamped in a door frame, and meanwhile, the air bag is slowly released to reduce noise generated by the spring bolt.

Description

Technical Field

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

[0002] With the development of society and advancements in technology, the demand for security is increasing, especially in the areas of security management in homes, offices, and public facilities. Under existing technology, most door lock components are typically made of metal. Chinese patent "CN202322881683.3" suggests that the impact and friction between components during door opening and closing can cause noise. In particular, when closing, the lock tongue's spring quickly resets, causing impact and noise. Utility Model Content

[0003] The utility model aims at solving the deficiencies in the prior art and provides a mechanical locking device.

[0004] In order to solve the above technical problems, the present invention solves them through the following technical solutions: a mechanical lock device includes a lock tongue and a lock slot, the lock tongue includes an extension plate, the extension plate is slidably connected to the lock slot, a sliding plate is provided on the extension plate, and a first spring and an airbag placed in parallel are provided between the sliding plate and the mounting plate in the lock slot.

[0005] In the above solution, preferably, the sliding plate is arranged perpendicular to the extension plate, and the sliding plate is limited at the end of the locking groove.

[0006] In the above solution, preferably, the mounting plate protrudes from the interior of the locking slot and is arranged parallel to the sliding plate.

[0007] In the above solution, preferably, a guide rod for guiding the first spring is provided on the mounting plate, and the first spring is sleeved in the guide rod.

[0008] In the above solution, preferably, a through hole is provided on the sliding plate, the airbag provided outside the through hole includes a hollow hole, the guide rod can pass through the through hole and the hollow hole, and the first spring and the airbag are against each other.

[0009] In the above solution, preferably, a control member is provided at the end of the lock slot, and control blocks are provided on both sides of the extension plate, and the control blocks protrude from the control member. When the control blocks are moved, the lock tongue moves synchronously.

[0010] In the above scheme, preferably, a lock hole member is connected through the control member, the lock hole member is rotatably connected to the control member, and the lock hole includes a protruding block extending outward, and the protruding block is rotated to move the control block to drive the lock tongue into the lock groove.

[0011] In the above solution, preferably, the locking member includes a central square hole.

[0012] In the above solution, preferably, the airbag is an accordion-type airbag.

[0013] In the above solution, preferably, the locking tongue includes a silent part at the front end.

[0014] The beneficial effect of the utility model is that by arranging the first spring and the airbag between the lock tongue and the lock slot, when the lock encounters an external force impact, the lock tongue part can be reset by the first spring, so that the express is stuck in the door frame, and at the same time the airbag is slowly released to reduce the noise emitted by the lock tongue. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is an overall three-dimensional diagram of the utility model.

[0016] Figure 2 This is a schematic diagram of the lock tongue control of the utility model.

[0017] Figure 3 for Figure 2 Enlarged view of point A.

[0018] Figure 4 It is a side view of the utility model.

[0019] Figure 5 This is a schematic diagram of the use of the keyhole component of the utility model. DETAILED DESCRIPTION

[0020] The present invention is described in further detail below with reference to the accompanying drawings and specific embodiments: Figure 1-Figure 5 A mechanical lock device includes a lock tongue 1 and a lock slot 2, wherein the lock tongue 1 also includes an extension plate 3, and the extension plate 3 slides in the inner wall of the lock slot 2, thereby realizing stable sliding of the lock tongue 1, and when the lock tongue 1 is located in the lock slot 2, the mechanical lock device is in an unlocked state.

[0021] A sliding plate 4 is provided on the extension plate 3. The sliding plate 4 matches the inner wall of the lock groove 2 and is slidably arranged therein. At the same time, the sliding plate 4 is arranged perpendicular to the extension plate 3. The end of the sliding plate 4 is limited by abutting against the lock groove 2. At the same time, a mounting plate 5 is protrudingly provided on the inner wall of the lock groove 2. The mounting plate 5 matches the sliding plate 4 and is arranged parallel to the sliding plate 4.

[0022] Furthermore, a first spring 6 and an airbag 7 are connected between the sliding plate 4 and the extension plate 3, wherein the first spring 6 is used to quickly reset the lock tongue 1, and the airbag 7 is used to slowly reset the lock tongue 1. Specifically, the first spring 6 and the airbag 7 are arranged in parallel and vertically arranged on the mounting plate 5 to guide the movement of the first spring 6, that is, the first spring 6 is arranged in the guide rod 8 to ensure that the first spring 6 will not deviate when moving, causing unstable movement of the lock tongue 1.

[0023] At the same time, an airbag 7 is arranged on one side of the guide rod 8, and the airbag 7 is arranged on the sliding plate 4. The airbag 7 includes a hollow hole 10 in the middle, and the hollow hole 10 can also pass through the guide rod 8. At the same time, a through hole 9 matching the guide rod 8 is provided on the sliding plate 4. The guide rod 8 slides freely in the through hole 9, and the first spring 6 and the airbag 7 are deformed more stably.

[0024] Furthermore, the airbag 7 and the first spring 6 are close to each other at both ends, so when the first spring 6 is compressed, the airbag 7 will also be compressed. When the first spring 6 is reset, the airbag 7 will also be reset. At the same time, the airbag 7 can be an accordion-type airbag 7, which is convenient for setting a hollow space in its center and is more stable when the airbag 7 is extended.

[0025] Specifically, for the specific control of the lock tongue 1, a control member 11 is provided at the end of the lock slot 2, and the extension plate 3 slides in the control member 11. The control member 11 is a box-type shell, and control blocks 12 are provided on both ends of the extension plate 3. The lock tongue 1 and the extension plate 3 are moved by moving the control block 12.

[0026] Furthermore, the control block 12 protrudes from the control member 11 and slides on the outside of the control member 11. At the same time, a locking member 13 is provided on the control member 11. The locking member 13 passes through the control member 11 and is rotatably connected to the control member 11.

[0027] A protruding block 14 is extended on the outer wall of the lock hole member 13, and the protruding block 14 is located on the side of the control block 12. When the protruding block 14 is not in contact with the control block 12, the lock tongue 1 is located on the outside of the lock groove 2 under the action of the first spring 6 and the airbag 7, and is in a locked state. The protruding block 14 is rotated to drive the control block 12 to move, thereby realizing the movement of the lock tongue 1.

[0028] After the lock tongue 1 is reset, under the action of the first spring 6, the lock tongue 1 quickly enters the placement groove on the door frame and is locked. Under the slow movement of the airbag 7, the lock tongue 1 enters a certain depth in the placement groove and completely locks the door frame.

[0029] Furthermore, a square hole 15 is provided in the middle of the lock hole member 13, and the square hole 15 can be connected to the handle via a latch to control the lock tongue 1. The lock tongue 1 also includes a front end silent member 16, which is generally made of plastic or rubber material, and which impacts the placement groove to reduce the contact sound of the lock tongue 1.

[0030] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features thereof can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A mechanical locking device, characterized in that: The invention comprises a lock tongue and a lock slot, wherein the lock tongue comprises an extension plate, the extension plate is slidably connected to the lock slot, a sliding plate is arranged on the extension plate, and a first spring and an air bag placed in parallel are arranged between the sliding plate and the mounting plate in the lock slot.

2. A mechanical locking device according to claim 1, characterized in that: The sliding plate is arranged perpendicular to the extension plate, and the sliding plate is limited at the end of the locking slot.

3. A mechanical locking device according to claim 2, characterized in that: The mounting plate protrudes from the interior of the locking slot and is arranged parallel to the sliding plate.

4. A mechanical locking device according to claim 3, characterized in that: A guide rod for guiding the first spring is provided on the mounting plate, and the first spring is sleeved in the guide rod.

5. A mechanical locking device according to claim 4, characterized in that: The sliding plate is provided with a through hole, the airbag provided outside the through hole includes a hollow hole, the guide rod can pass through the through hole and the hollow hole, and the first spring and the airbag are against each other.

6. A mechanical locking device according to claim 1, characterized in that: A control piece is provided at the end of the lock slot, and control blocks are provided on both sides of the extension plate. The control blocks protrude from the control piece, and when the control blocks are moved, the lock tongue moves synchronously.

7. A mechanical locking device according to claim 6, characterized in that: A lock hole member is connected through the control member and is rotatably connected to the control member. The lock hole includes a protruding block extending outward. The protruding block is rotated to move the control block to drive the lock tongue into the lock groove.

8. A mechanical locking device according to claim 7, characterized in that: The keyhole member includes a central square hole.

9. The mechanical locking device according to claim 1, characterized in that: The airbag is an accordion-type airbag.

10. The mechanical locking device according to claim 1, characterized in that: The locking tongue includes a silent member at the front end.

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