CN112240133A

CN112240133A - Back trigger device of self-eject lock body and self-eject lock body

Info

Publication number: CN112240133A
Application number: CN201910642336.0A
Authority: CN
Inventors: 方永秋; 程来胜
Original assignee: Shenzhen Wanshafu Smart Lock Co ltd
Current assignee: Shenzhen Wanshafu Smart Lock Co ltd
Priority date: 2019-07-16
Filing date: 2019-07-16
Publication date: 2021-01-19

Abstract

According to the rear trigger device of the self-eject lock body and the self-eject lock body, the first bolt component, the second bolt component and the upper lock starting piece are arranged in the lock body, so that the second bolt component is triggered to eject out of the lock box only after the first bolt component completely enters the lock box, and the situation that the first bolt component does not completely enter the lock box when touching the door buckle plate, the second bolt component is driven to eject out of the lock box, and the locking of the self-eject lock body is influenced is avoided.

Description

Back trigger device of self-eject lock body and self-eject lock body

Technical Field

The invention relates to the technical field of locks, in particular to a rear trigger device of a self-eject lock body and the self-eject lock body.

Background

At present, the self-eject lock body is one of the lock bodies used in the intelligent electronic door lock, and the main characteristic of the self-eject lock body is that the lock body is locked when the door is closed, so that the condition of false locking or forgetting to lock can be basically avoided, and the safety is higher. The intelligent electronic lock is a lock body which is used more for the current household fingerprint lock, and is also an important mechanism of the intelligent electronic lock.

In the prior art, a lock body is generally provided with a lock tongue assembly, the lock tongue assembly comprises an oblique tongue and a square tongue, and the oblique tongue and the square tongue lock tongue can both pass through a guide plate connected to one side of a lock box to move back and forth. When the lock body is unlocked, the latch bolt is automatically ejected, but the square bolt is fixed in the lock box, and when the lock body needs to be closed and locked, the latch bolt can immediately drive the square bolt to eject from the lock box as soon as the latch bolt touches the door frame. However, when the latch bolt does not completely enter the lock box, i.e. the latch bolt does not touch the door buckle plate, if the square bolt is ejected, the lock cannot be locked when the door is closed, and the lock body needs to be unlocked again.

Disclosure of Invention

The invention aims to provide a rear trigger device of a self-eject lock body and the self-eject lock body, and aims to solve the problem that when a door is closed and locked in the prior art, a dead bolt is ejected when an oblique bolt does not touch a door buckle plate.

The technical problem to be solved by the invention is realized by adopting the following technical scheme.

The invention provides a rear trigger device of a self-eject lock body, which is arranged on a lock box and comprises a first bolt component, a second bolt component and an upper lock starting sheet.

Furthermore, one side of the locking actuating piece comprises a first groove and a second groove, and a first bulge is formed at the joint of the first groove and the second groove.

Furthermore, the first bolt locking assembly comprises a latch bolt and a push rod fixedly connected with one end of the latch bolt, a sliding sheet is arranged on the push rod, and the sliding sheet can move back and forth between the first groove and the second groove; the second bolt assembly comprises a square bolt and a pushing plate fixedly connected with the square bolt, and the pushing plate drives the square bolt to enter and exit the lock box.

Furthermore, the rear trigger device comprises an unlocking positioning piece which is pivotally connected with the locking starting piece, and the unlocking positioning piece fixes the second lock bolt assembly when the second lock bolt assembly is completely moved into the lock box; one end of the unlocking positioning piece is provided with a second bulge, the other end of the unlocking positioning piece is provided with a third groove, and the second bulge abuts against one end of the locking starting piece; the rear trigger device includes three states in the locking process.

Furthermore, when the first lock tongue assembly completely enters the lock box and rebounds, the locking starting sheet rotates and drives the unlocking positioning sheet to rotate, and the second lock tongue assembly is separated from the unlocking positioning sheet.

Further, when the self-eject lock body is in the first state, the latch bolt is moved out of the lock box, the square bolt retracts into the lock box, the sliding piece abuts against the second groove, and the pushing plate abuts against the third groove.

Further, when the self-eject lock body is in the second state, the latch bolt and the dead bolt are retracted into the lock box, the sliding piece abuts against the first groove, and the pushing plate abuts against the third groove.

Further, when the self-eject lock body is in a third state, the latch bolt and the dead bolt are both moved out of the lock box, the sliding piece abuts against the second groove, and the pushing plate is moved away from the third groove.

Furthermore, an unlocking positioning pin is arranged on the pushing plate, and when the square bolt moves into the lock box, the unlocking positioning pin abuts against the third groove; when the square bolt is moved out of the lock box, the unlocking positioning pin is moved away from the third groove.

The invention also provides a self-ejection lock body which comprises the rear trigger device.

The rear trigger device of the self-eject lock body and the self-eject lock body provided by the invention have the advantages that the first bolt component, the second bolt component and the upper lock starting piece are arranged in the lock body, so that the second bolt component is triggered to eject from the lock box by the upper lock starting piece when the first bolt component completely enters the lock box and rebounds, and the influence on the locking of the self-eject lock body when the first bolt component touches the door buckle plate, namely the second bolt component is driven to eject from the lock box, is avoided.

Drawings

Fig. 1 is a schematic perspective view of a self-eject lock body in a first state according to an embodiment of the present invention.

Fig. 2 is a schematic perspective view of the self-eject lock body in the second state according to the embodiment of the present invention.

Fig. 3 is a schematic plan view of fig. 1.

Fig. 4 is a schematic plan view of fig. 2.

Fig. 5 is a partial plan view of the self-eject lock body according to the embodiment of the invention.

FIG. 6 is a schematic structural diagram of a lock actuating piece according to an embodiment of the present invention.

Fig. 7 is a schematic structural view of the unlocking positioning piece in the embodiment of the invention.

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description of the embodiments, structures, features and effects of the present invention will be made with reference to the accompanying drawings and examples.

Fig. 1 is a schematic perspective view illustrating a first state of a self-latch body according to an embodiment of the present invention, fig. 2 is a schematic perspective view illustrating a second state of the self-latch body according to an embodiment of the present invention, fig. 3 is a schematic plan view illustrating the structure of fig. 1, and fig. 4 is a schematic plan view illustrating the structure of fig. 2. Referring to fig. 1 to 4, an embodiment of the present invention provides a rear trigger device of a self-releasing lock body, the rear trigger device is disposed on a lock box 10, the rear trigger device includes a first latch bolt assembly 20, a second latch bolt assembly 30 and a lock trigger plate 40, when the first latch bolt assembly 20 completely enters the lock box 10 and is released from the lock box 10 under the action of a resilient force, the lock trigger plate 40 triggers the second latch bolt assembly 30, so that the first latch bolt assembly 20 and the second latch bolt assembly 30 are sequentially released from the lock box 10.

Fig. 5 is a partial plan view of a self-eject lock body according to an embodiment of the present invention, fig. 6 is a schematic structural view of a lock activation plate according to an embodiment of the present invention, and referring to fig. 5 and fig. 6, a first groove 41 and a second groove 42 are formed on one side of the lock activation plate 40, and a first protrusion 43 is formed at a connection portion of the first groove 41 and the second groove 42.

With continued reference to fig. 3 to 5, the first latch assembly 20 includes a latch 21 and a push rod 22 fixedly connected to one end of the latch 21, the push rod 22 is provided with a slide piece 23, and the slide piece 23 can move back and forth between a first groove 41 and a second groove 42; the second latch bolt assembly 30 includes a square bolt 31 and a pushing plate 32 fixedly connected to the square bolt 31, and the pushing plate 32 drives the square bolt 31 to move in and out of the lock case 10. Specifically, in the present embodiment, the push rod 22 may be connected to the bottom of the lock case 10 by an elastic member. When the latch bolt 21 of the first latch bolt assembly 20 contacts the door fastening plate and retracts into the lock box 10, the latch bolt can be ejected out of the lock box 10 again under the action of the resilience force.

Fig. 7 is a schematic structural diagram of an unlocking positioning piece according to an embodiment of the present invention, please refer to fig. 7, the rear trigger device further includes an unlocking positioning piece 50, and the unlocking positioning piece 50 and the locking start piece 40 are pivotally connected through a first positioning pin 61. When the second bolt assembly 30 is completely moved into the lock case 10, the unlocking positioning piece 50 fixes the second bolt assembly 30; one end of the unlocking positioning piece 50 is provided with a second protrusion 51, the other end of the unlocking positioning piece 50 is provided with a third groove 52, and the second protrusion 51 abuts against one end of the locking starting piece 40. In addition, the pushing plate 32 is provided with an unlocking positioning pin 321, and when the square bolt 31 moves into the lock box 10, the unlocking positioning pin 321 abuts against the third groove 52; when the square bolt 31 is removed from the lock case 10, the unlocking positioning pin 321 is removed from the third recess 52.

In this embodiment, when the first bolt assembly 20 completely enters the lock box 10 and is ejected, the first bolt assembly 20 pulls the lock actuation piece 40 to rotate and drive the unlock positioning piece 50 to rotate, so that the second bolt assembly 30 is separated from the unlock positioning piece 50. That is, after the first bolt assembly 20 is completely moved into the lock box 10 and is ejected from the lock box 10 by the resilience, the lock actuation plate 40 actuates the second bolt assembly 30 by unlocking the lock positioning plate 50, so that the second bolt assembly 30 is moved out of the lock box 10, thereby locking the self-eject lock body.

Referring to fig. 1 to 7, the self-eject lock body includes three states, when the self-eject lock body is in the first state, the latch bolt 21 is moved out of the lock box 10, the square bolt 31 is retracted into the lock box 10, the sliding piece 23 abuts against the second groove 42, and the unlocking positioning pin 321 of the push plate 32 is disposed in the third groove 52.

When the self-eject lock body is in the first state, the latch bolt 21 of the first latch bolt assembly 20 can be ejected back after contacting the door buckle plate, when the first latch bolt assembly 20 is ejected back, the latch bolt 21 can drive the sliding piece 23 on the push rod 22 to gradually move to the first groove 41 from the second groove 42, when the latch bolt 21 completely moves to the lock box 10, the self-eject lock body is in the second state, at the moment, the latch bolt 21 and the square bolt 31 both retract into the lock box 10, the sliding piece 23 abuts against the first groove 41, and the unlocking positioning pin 321 of the push plate 32 abuts against the third groove 52.

When the self-eject lock body is in the second state, the latch bolt 21 starts to drive the pushing rod 22 to move towards the outside of the lock box 10, and the sliding piece 23 fixedly connected with the pushing rod 22 drives the locking start piece 40 to move towards the direction close to the latch bolt 21, so as to drive the locking start piece 40 to rotate around the first positioning pin 61; when the locking start piece 40 rotates, the unlocking positioning piece 50 is driven to rotate by the second protrusion 51 abutting against the locking start piece, and after the unlocking positioning piece 50 rotates, the pushing plate 32 of the second locking bolt assembly 30 is moved away from the third groove 52, so that the second locking bolt assembly 30 is ejected from the lock case 10, and at this time, the sliding piece 23 moves from the first groove 41 to the second groove 42. When both the first and second latch bolt assemblies 20 and 30 are ejected from the lock box 10, the self-unlatching body is in a third state.

The invention provides a rear trigger device of a self-eject lock body and the self-eject lock body, wherein a first bolt component 20, a second bolt component 30 and an upper lock starting sheet 40 are arranged in the lock body, so that after the first bolt component 20 completely enters a lock box 10, namely, when the first bolt component 20 is popped out after touching a door buckle plate when closing the door, the second bolt component 30 can pull the upper lock starting sheet 40, and the upper lock starting sheet 40 can trigger the second bolt component 30 to pop out from the lock box 10, thereby avoiding that the first bolt component 20 is not completely entered into the lock box 10 when touching the door buckle plate, the second bolt component 30 is driven to pop out from the lock box 10, and the locking of the self-eject lock body is influenced.

As used herein, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, including not only those elements listed, but also other elements not expressly listed.

In this document, the terms front, back, upper and lower are used to define the components in the drawings and the positions of the components relative to each other, and are used for clarity and convenience of the technical solution. It is to be understood that the use of the directional terms should not be taken to limit the scope of the claims.

The features of the embodiments and embodiments described herein above may be combined with each other without conflict.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The utility model provides a back trigger device of lock body of auto-eject, sets up on lock box (10), its characterized in that, back trigger device includes first latch bolt subassembly (20), second latch bolt subassembly (30) and lock start plate (40), when first latch bolt subassembly (20) is popped out again under the effect of resilience force after closing the door and touching the buckle in lock box (10), first latch bolt subassembly (20) stimulate lock start plate (40), lock start plate (40) and trigger second latch bolt subassembly (30) and lock.

2. The rear trigger device as claimed in claim 1, wherein one side of the lock actuating piece (40) includes a first groove (41) and a second groove (42), and a first protrusion (43) is formed at a junction of the first groove (41) and the second groove (42).

3. The rear trigger device as recited in claim 2, wherein the first latch assembly (20) comprises a latch (21) and a push rod (22) fixedly connected with one end of the latch (21), a slide (23) is arranged on the push rod (22), the slide (23) can move back and forth between the first groove (41) and the second groove (42), and when the first latch assembly (20) rebounds to completely enter the lock box (10) after touching the door catch plate, the slide (23) is contacted with the first groove (41); the second bolt assembly (30) comprises a square bolt (31) and a pushing plate (32) fixedly connected with the square bolt (31), and the pushing plate (32) drives the square bolt (31) to enter and exit the lock box (10).

4. The rear trigger assembly of claim 3, wherein the rear trigger assembly includes an unlock positioning tab (50) pivotally connected to the lock activation tab (40), the unlock positioning tab (50) securing the second bolt assembly (30) when the second bolt assembly (30) is fully moved into the lock case (10); one end of the unlocking positioning sheet (50) is provided with a second bulge (51), the other end of the unlocking positioning sheet (50) is provided with a third groove (52), and the second bulge (51) abuts against one end of the locking starting sheet (40); the rear trigger device comprises three states in the locking process.

5. The rear trigger device as claimed in claim 4, wherein when the first bolt assembly (20) is fully inserted into the lock case (10), the lock actuation plate (40) rotates and drives the unlocking positioning plate (50) to rotate, and the second bolt assembly (30) is disengaged from the unlocking positioning plate (50).

6. Rear trigger device according to claim 4, characterized in that when the self-eject lock body is in the first state, the latch tongue (21) is removed from the lock case (10), the square tongue (31) is retracted into the lock case (10), the slide (23) abuts against the second recess (42), and the push plate (32) is fixed in the lock case (10).

7. Rear trigger device according to claim 4, characterized in that when the self-eject lock body is in the second state, both the latch bolt (21) and the square bolt (31) are retracted into the lock case (10), and the slide (23) abuts against the first recess (41).

8. The rear trigger device according to claim 4, wherein when the self-eject lock body is in the third state, the latch bolt (21) and the square bolt (31) are both moved out of the lock box (10), the slide plate (23) abuts against the second groove (42), and the push plate (32) drives the square bolt (31) to move out of the lock box (10).

9. Rear trigger device according to claim 4, characterized in that an unlocking positioning pin (321) is provided on the pushing plate (32), and when the square bolt (31) is moved into the lock case (10), the unlocking positioning pin (321) is disposed in the third recess (52) of the unlocking positioning piece (50).

10. A self-eject lock body including a rear trigger arrangement as claimed in any one of claims 1 to 9.