Door lock snapping mechanism

Abstract

The present invention discloses a door lock buckling mechanism. It comprises a base, a buckling plate and a lock plate. The base is provided with a right base and a left base, a gap is reserved between the right base and the left base, a hook is provided at one end of the buckling plate, and a first strip-shaped sliding opening is provided at the other end; the right base is provided with a second strip-shaped sliding opening, the right base is provided with a paddle, and a first guide column and a second guide column are provided on the paddle, the first guide column and the second guide column both pass through the second sliding opening, and the top end of the second guide column also passes through the first sliding opening; the middle part of the buckling plate is top-touched with an arc-shaped spring plate, and a bending part is provided on the arc-shaped spring plate. The present invention uses the left and right tilting changes of a single "V"-shaped buckling plate as a transmission and buckling action component, which effectively reduces the overall body and makes the structure more streamlined.

Description

Technical Field

[0001] The invention relates to the technical field of door locks, and in particular to a door lock buckling mechanism. Background Art

[0002] As the name implies, a door lock is a device used to lock a door to prevent others from opening it. Therefore, the quality of a door lock is more reflected in its locking function. In order to achieve the locking of the door, the door lock must be equipped with a corresponding buckling mechanism, which buckles the lock port through the buckling mechanism to achieve the function of connecting and locking.

[0003] At present, the snap-fitting structures of existing door locks mostly achieve the snap-fitting effect by using multiple sets of gears to rotate along with the square shaft. The overall structure is too complicated, and the snap-fitting effect is prone to being unstable. Summary of the invention

[0004] In view of the above-mentioned deficiencies in the prior art, an object of the present invention is to provide a door lock buckling mechanism with a simple structure and a firm buckling.

[0005] In order to achieve the above object, the present invention adopts the following technical solution:

[0006] A door lock buckling mechanism, comprising a base, a buckling sheet and a locking sheet, wherein the base is provided with a right base and a left base, a gap is reserved between the right base and the left base, the buckling sheet is in a "V" shape, one end of the buckling sheet is provided with a hook, and the other end is provided with a first strip-shaped sliding opening, the middle part of the buckling sheet is hinged at the gap, and the locking sheet is provided with a locking opening;

[0007] The right base is provided with a second strip-shaped sliding opening, the right base is provided with a paddle, the paddle is provided with a first guide post and a second guide post, the first guide post and the second guide post both pass through the second sliding opening, and the top end of the second guide post also passes through the first sliding opening;

[0008] The paddle can slide back and forth along the direction of the second sliding opening and control the buckle piece to tilt left and right, wherein, for the buckle piece, when the end provided with the first sliding opening is tilted, the hook will extend out of the base and be stuck in the locking opening of the locking piece, and when the end provided with the first sliding opening is lowered, the hook will exit the locking opening and retract into the base;

[0009] The middle part of the buckling piece is pressed against an arc-shaped spring piece, a bending part is arranged on the arc-shaped spring piece, the other end of the arc-shaped spring piece is pressed against the base body, and provides elastic pressing force to the buckling piece at all times.

[0010] Preferably, the first guide post and the second guide post are provided with a limiting plate, and the limiting plate is clamped at the second sliding opening to prevent the first guide post and the second guide post from being separated from the second sliding opening.

[0011] Preferably, the left base is provided with a third sliding opening at a position symmetrical to the second sliding opening, and the top end of the second guide column extends into the third sliding opening after passing through the first sliding opening.

[0012] Preferably, the buckling piece and the base are provided with bayonet holes at the arc-shaped spring piece, and the two ends of the arc-shaped spring piece are respectively engaged and confined in the corresponding bayonet holes.

[0013] Preferably, the right base is provided with a slide groove at the paddle, the paddle is accommodated in the slide groove, and one end of the paddle is tilted to form a handle.

[0014] Due to the adoption of the above scheme, the present invention uses the left and right tilting changes of a single "V"-shaped snap-fitting piece as a transmission and snap-fitting component, which effectively reduces the overall body and makes the structure more streamlined; at the same time, relying on the arc-shaped spring piece and the bending portion arranged on the arc-shaped spring piece, on the premise of providing a driving force to the snap-fitting piece in real time, it can also provide a limiting effect each time it is tilted to the highest point or dropped to the lowest point, thereby preventing the snap-fitting piece from automatically moving under non-human action, thereby avoiding accidental locking and unlocking. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structural principle of an embodiment of the present invention.

[0016] Figure 2 Schematic diagram of the structure inside the base body of an embodiment of the present invention.

[0017] Figure 3 2 is a schematic structural diagram of a buckle piece according to an embodiment of the present invention.

[0018] Figure 4 It is a schematic structural diagram of a plectrum according to an embodiment of the present invention.

[0019] Figure 5 It is a schematic diagram of the structure of the buckle piece after being locked according to the embodiment of the present invention. DETAILED DESCRIPTION

[0020] The embodiments of the present invention are described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways as defined and covered by the claims.

[0021] like Figures 1 to 5 As shown, a door lock buckling mechanism provided in this embodiment includes a base 1, a buckling piece 2 and a locking piece 3, wherein the base 1 is provided with a right base 11 and a left base 12, a gap is reserved between the right base 11 and the left base 12, the buckling piece 2 is in a "V" shape, a hook 21 is provided at one end of the buckling piece 2, and a first strip-shaped sliding opening 22 is provided at the other end, the middle part of the buckling piece 2 is hinged at the gap, and the locking piece 3 is provided with a locking opening 31;

[0022] The right base 11 is provided with a second sliding opening 13 in a strip shape, a paddle 14 is provided on the right base 11, a first guide post 15 and a second guide post 16 are provided on the paddle 14, both the first guide post 15 and the second guide post 16 pass through the second sliding opening 13, and the top end of the second guide post also passes through the first sliding opening 22;

[0023] The paddle 14 can slide back and forth along the direction of the second sliding opening 13 and control the buckle piece 14 to tilt left and right. For the buckle piece 2, when the end provided with the first sliding opening 22 is tilted, the hook 21 will extend out of the base 1 and be stuck in the locking opening 31 of the locking piece 3. When the end provided with the first sliding opening 22 is lowered, the hook 21 will exit the locking opening 31 and retract into the base 1.

[0024] The middle of the buckling piece 2 is pressed against an arc-shaped spring piece 4 , on which a bending portion 41 is provided. The other end of the arc-shaped spring piece 4 is pressed against the base 1 and provides elastic pressing force to the buckling piece 2 at all times.

[0025] The present embodiment mainly uses the left and right tilting change of a single "V"-shaped snap-fitting piece 2 as a transmission and locking component, which effectively reduces the overall body and makes the structure more streamlined; at the same time, relying on the arc-shaped spring piece 4 and the bending portion 41 provided on the arc-shaped spring piece 4, on the premise of providing a driving force to the snap-fitting piece 2 in real time, it can also provide a limiting effect each time it is tilted to the highest point or dropped to the lowest point, thereby preventing the snap-fitting piece 2 from automatically moving under non-human action, thereby avoiding accidental locking and unlocking.

[0026] During specific operation, the base 1 and the locking plate 3 are fixed on different door frames respectively, and the locking opening 31 of the locking plate 3 needs to be aligned with the hook 21 on the buckle plate 2. In the unlocked state, the end of the buckle plate 2 provided with the first sliding opening 22 is located at the bottom, and the other end of the buckle plate 2 is tilted, the hook 21 is stored in the base 1, and the arc-shaped spring plate 4 is arched to the left. When locking is required, the hand acts on the paddle 14 to make the paddle 14 slide upward, and the first guide column 15 and the second guide column 16 also move upward along the second sliding opening 13, so that the second guide column 16 moves in the first sliding opening 22 and pulls the buckle plate 2 to rotate along the hinge point. During the rotation, the arc-shaped spring plate 4 provides a corresponding pushing force, forcing the arc-shaped spring piece 4 to have a tendency to arch in another direction along the bending portion 41, and the hook 21 gradually moves out of the base 1. When the paddle 14 is moved to the uppermost end, the buckle piece 2 is rotated completely, and the hook 21 is stuck in the lock opening 31 of the lock piece 3, and the arc-shaped spring piece 4 is forced to arch in another direction during the rotation process. In this way, when the arc-shaped spring piece 4 is arched, it will provide a thrust and a limiting force, thereby preventing the buckle piece 2 from automatically moving under non-human action, avoiding accidental locking and unlocking. When unlocking is required, the paddle 14 is knocked down by external force, so that the arc-shaped spring piece 4 and the buckle piece 2 are restored, and the hook 21 is separated from the lock opening 31 and stored in the base 1.

[0027] Furthermore, in order to prevent the first guide column 15 and the second guide column 16 from escaping from the second sliding opening 13 during the sliding process, a limiting plate 17 is provided on the first guide column 15 and the second guide column 16. The limiting plate 17 is clamped at the second sliding opening 13 to prevent the first guide column 15 and the second guide column 16 from escaping from the second sliding opening 13.

[0028] Furthermore, in order to improve the stability of the movement of the snap-fitting piece 2 driven by the second guide column 16, the left base 12 of this embodiment is provided with a third sliding opening 18 at a symmetrical position of the second sliding opening 13. After passing through the first sliding opening 22, the top end of the second guide column 16 extends into the third sliding opening 18. In this way, the end of the second guide column 16 can also have a force point, so that the end of the second guide column 16 can be suspended and swung.

[0029] Furthermore, the arc-shaped spring piece 4 of the present embodiment will deform during operation, which will cause swinging. Therefore, in order to prevent the arc-shaped spring piece 4 from detaching from the snap-fitting piece 2, the snap-fitting piece 2 and the base 1 of the present embodiment are provided with a bayonet 19 at the arc-shaped spring piece 4, and the two ends of the arc-shaped spring piece 4 are respectively snap-fitted and limited in the corresponding bayonet 19.

[0030] Furthermore, in order to ensure the overall flatness and prevent the paddle 14 from protruding from the base 1, the right base 11 of this embodiment is provided with a slide groove 110 at the paddle 14, and the paddle 14 is accommodated in the slide groove 110. In addition, in order to facilitate manual operation or connection with an external power structure, one end of the paddle 14 of this embodiment is tilted to form a handle 111, which makes it easy for people to paddle or connect with other power components.

[0031] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A door lock snapping mechanism, characterized in that: It comprises a base, a buckle piece and a locking piece, wherein the base is provided with a right base and a left base, a gap is reserved between the right base and the left base, the buckle piece is in a "V" shape, one end of the buckle piece is provided with a hook, and the other end is provided with a first strip-shaped sliding opening, the middle part of the buckle piece is hinged at the gap, and the locking piece is provided with a locking opening; The right base is provided with a second strip-shaped sliding opening, the right base is provided with a paddle, the paddle is provided with a first guide post and a second guide post, the first guide post and the second guide post both pass through the second sliding opening, and the top end of the second guide post also passes through the first sliding opening; The paddle can slide back and forth along the direction of the second sliding opening and control the buckle piece to tilt left and right, wherein, for the buckle piece, when the end provided with the first sliding opening is tilted, the hook will extend out of the base and be stuck in the locking opening of the locking piece, and when the end provided with the first sliding opening is lowered, the hook will exit the locking opening and retract into the base; The middle part of the buckling piece is pressed against an arc-shaped spring piece, a bending part is arranged on the arc-shaped spring piece, the other end of the arc-shaped spring piece is pressed against the base body, and provides elastic pressing force to the buckling piece at all times.

2. A door lock snapping mechanism according to claim 1, characterized in that: The first guide post and the second guide post are provided with a limiting piece, and the limiting piece is clamped at the second sliding opening to prevent the first guide post and the second guide post from being separated from the second sliding opening.

3. A door lock snapping mechanism as claimed in claim 2, characterized in that: The left base is provided with a third sliding opening at a symmetrical position of the second sliding opening, and the top end of the second guide column extends into the third sliding opening after passing through the first sliding opening.

4. A door lock snapping mechanism as claimed in claim 3, characterized in that: The buckle piece and the base are provided with bayonet holes at the arc-shaped spring piece, and the two ends of the arc-shaped spring piece are respectively locked and located in the corresponding bayonet holes.

5. A door lock snapping mechanism as claimed in claim 4, characterized in that: The right base is provided with a slide groove at the paddle position, the paddle is accommodated in the slide groove, and one end of the paddle is tilted to form a handle.

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