CN213015826U

CN213015826U - Anti-picking anti-theft lock

Info

Publication number: CN213015826U
Application number: CN202020864489.8U
Authority: CN
Inventors: 魏祖旭
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-05-21
Filing date: 2020-05-21
Publication date: 2021-04-20
Anticipated expiration: 2030-05-21

Abstract

The utility model discloses a pick-proof anti-theft lock, which comprises a lock shell, wherein the lock shell is provided with a spring bolt which can be driven by a lock core to rotate, and the spring bolt is provided with a limit pin on one side surface positioned in the lock shell; an L-shaped limiting plate is arranged in the lock shell and comprises a rotating plate and an expansion plate, the expansion plate is parallel to the lock tongue, a strip-shaped hole is formed in one end, close to the expansion plate, of the rotating plate, and a sliding shaft penetrates through the strip-shaped hole to connect the rotating plate and the expansion plate together; the rotor plate is relative the spacer pin is equipped with a shape matched with recess, and when being in the lock door state, recess and spacer pin block, the rotor plate supports and presses on the lock shell to L shape limiting plate is the triangular supports state with the spring bolt, and the spring bolt can't contract to the lock shell under the condition that does not have the key to unblank, consequently plays pick-proof effect. The utility model discloses simple structure, convenient to use, the theftproof effect is better.

Description

Anti-picking anti-theft lock

Technical Field

The utility model relates to a lock especially relates to a simple structure, convenient to use, better pick-proof pickproof lock of theftproof effect.

Background

The existing mechanical lock is simple in opening mode, the lock core can be rotated only by keeping all the marbles at the correct height, and due to the adoption of the door opening mode, a plurality of door opening tools such as iron wires and the like are provided, so that the door lock can be smoothly opened only by fixing the marbles at the correct height. At present, the door lock on the market is mainly used for locking a door by inserting a dead bolt and an oblique bolt into a door frame, and the door lock is only transversely connected with the door frame, so that the structure is relatively simple, the lock is easy to pry open, and the life and property safety of a resident is threatened.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide a prying-resistant anti-theft lock with simple structure, convenient use and better anti-theft effect.

The utility model is realized by the following technical measures, a prying-resistant anti-theft lock comprises a lock shell, wherein the lock shell is provided with a spring bolt which can be driven by a lock core to rotate, and a limit pin is arranged on one side surface of the spring bolt in the lock shell; an L-shaped limiting plate is arranged in the lock shell and comprises a rotating plate and an expansion plate, the expansion plate is parallel to the lock tongue, a strip-shaped hole is formed in one end, close to the expansion plate, of the rotating plate, and a sliding shaft penetrates through the strip-shaped hole to connect the rotating plate and the expansion plate together; the rotor plate is relative the spacer pin is equipped with a shape matched with recess, and when being in the lock door state, recess and spacer pin block, the rotor plate supports and presses on the lock shell to L shape limiting plate is the triangular supports state with the spring bolt, and the spring bolt can't contract to the lock shell under the condition that does not have the key to unblank, consequently plays pick-proof effect.

As a preferable mode, the lock case is also provided with a strip-shaped hole relative to the rotating plate, a sliding shaft is fixed in the strip-shaped hole, and the sliding shaft is arranged in the strip-shaped hole in a sliding manner.

As a preferable mode, a transverse compression spring is arranged in the lock shell and is pressed against the bolt.

As a preferable mode, a back locking assembly is further arranged in the lock shell and comprises a driving sheet and a clamping component, wherein the driving sheet can be driven by a lock tongue, a transverse groove is formed in one side, away from the lock tongue, of the driving sheet, and a stop column is arranged at the bottom of the transverse groove; the block component includes from last to down stirring piece, last cam post and lower cam post that sets gradually, the relative backstop post of lower cam post is equipped with the second draw-in groove with backstop post matched with, the relative backstop post of last cam post is equipped with the first draw-in groove of cooperateing with the backstop post, the lower extreme of last cam post can rotate with lower cam post cooperation, and when first draw-in groove and second draw-in groove all rotated to with the backstop post block, the transmission piece can't slide in the lock shell to the spring bolt also can't contract in the lock shell under the condition that has the key to unblank, consequently plays the effect of anti-lock.

The utility model discloses a side surface at the spring bolt is equipped with the spacer pin, be equipped with rotor plate and the expansion plate of rotating the connection in the lock shell, the rotor plate is equipped with shape matched with recess for the spacer pin, when being in the lock door state, recess and spacer pin block, the rotor plate supports and presses on the lock shell, the expansion plate withdrawal is in the lock shell, thereby the rotor plate, the expansion plate is the triangular supports state with the spring bolt, the spring bolt can't contract in the lock shell under the condition that does not have the key to unblank, consequently, play pick-proof effect, the structure is simpler, it is more convenient to use.

Drawings

Fig. 1 is a schematic view illustrating a door locking state according to an embodiment of the present invention;

fig. 2 is a schematic view of an unlocking state of the embodiment of the present invention.

Fig. 3 is an exploded view of the embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

A pick-proof anti-theft lock, refer to fig. 1 to 3, including the lock shell 1, lock the shell 1 to have lock tongue 2 that can be driven by lock core to rotate, lock tongue 2 locate in lock shell 1 one side surface have a spacer pin 4; an L-shaped limiting plate is arranged in the lock shell 1 and comprises a rotating plate 3 and an expansion plate 5, the expansion plate 5 is parallel to the lock tongue, a strip-shaped hole is formed in one end, close to the expansion plate 5, of the rotating plate 3, and a sliding shaft penetrates through the strip-shaped hole to connect the rotating plate 3 and the expansion plate 5 together; the rotating plate 3 is provided with a groove 31 with a matched shape relative to the limiting pin 4, when the door is locked, the groove 31 is clamped with the limiting pin 4, the rotating plate 3 is pressed on the lock shell 1, so that the L-shaped limiting plate and the lock tongue 2 are in a triangular support state, the lock tongue 2 cannot be retracted into the lock shell 1 under the condition that the key is not used for unlocking, and the anti-prying effect is achieved.

This pick-proof anti-theft lock is equipped with spacer pin 4 on the side surface of spring bolt 2, be equipped with rotor plate 3 and the expansion plate 5 of rotating the connection in the lock shell 1, rotor plate 3 is equipped with shape matched with recess 31 for spacer pin 4, when being in the lock door state, spacer pin 4 and recess 31 block, rotor plate 3 supports and presses on

lock shell

1, 5 retractions of expansion plate are in lock shell 1, thereby rotor plate 3, expansion plate 5 is the triangular supports state with spring bolt 2, spring bolt 2 can't contract in lock shell 1 under the condition that does not have the key to unblank, consequently, pick-proof effect has been played, moreover, the steam generator is simpler in structure, and more convenient to use, and then the market competition of product has been promoted greatly.

Referring to fig. 3, on the basis of the foregoing technical solution, the lock case 1 may further have a bar-shaped hole corresponding to the rotating plate 3, and a sliding shaft is fixed in the bar-shaped hole and slidably disposed in the bar-shaped hole. Therefore, the rotating plate 3 and the expansion plate 5 are more flexible when being carried or retreated in the lock shell 1, and the production, the manufacture and the use are more convenient.

Referring to fig. 1, based on the foregoing technical solution, a transverse compression spring 6 is further disposed in the lock case 1, and the transverse compression spring 6 is pressed against the bolt 2. After the lock is unlocked, the limiting pin 4 exits the groove 31, the rotating plate 3 drives the expansion plate 5 to extend out of the lock shell, and the lock bolt 2 also extends out of the lock shell 1 under the action of the restoring force of the transverse compression spring 6.

Referring to fig. 3, based on the foregoing technical solution, the anti-picking and anti-theft lock of an embodiment may further include a counter lock assembly further disposed in the lock case 1, the counter lock assembly includes a driving plate 7 capable of driving with the bolt 2 and a fastening member, a lateral groove is disposed on a side of the driving plate 7 away from the bolt 2, and a stop column 71 is disposed at a bottom of the lateral groove; the block component includes from last to the setting gradually piece 10, last abutment post 9 and lower abutment post 8 down, lower abutment post 8 is equipped with the second draw-in groove 81 with backstop post 71 matched with relatively backstop post 71, last abutment post 9 is equipped with the first draw-in groove 91 with backstop post 71 matched with relatively backstop post 71, the lower extreme of last abutment post 9 can rotate with lower abutment post 8 cooperation, when first draw-in groove 91 all rotates to block with backstop post 71 with second draw-in groove 81, transmission piece 7 can't slide in lock shell 1, thereby bolt 2 also can't contract in lock shell 1 under the condition that has the key to unblank, consequently, the resident can be anti-lock the lock in the room, outside personnel can't open the door, the security performance has been improved.

It is right above the utility model discloses the explanation that pick-proof pickproof lock goes on for help understands the utility model discloses, nevertheless the utility model discloses an embodiment does not receive the restriction of above-mentioned embodiment, and any does not deviate from the utility model discloses change, modification, substitution, combination, simplification made under the principle all should be equivalent replacement mode, all contain within the protection scope of the utility model.

Claims

1. A pick-proof anti-theft lock is characterized in that: the lock comprises a lock shell, wherein a lock tongue which can be driven by a lock core to rotate is arranged on the lock shell, and a limiting pin is arranged on the surface of one side of the lock tongue, which is positioned in the lock shell; an L-shaped limiting plate is arranged in the lock shell and comprises a rotating plate and an expansion plate, the expansion plate is parallel to the lock tongue, a strip-shaped hole is formed in one end, close to the expansion plate, of the rotating plate, and a sliding shaft penetrates through the strip-shaped hole to connect the rotating plate and the expansion plate together; the rotor plate is relative the spacer pin is equipped with a shape matched with recess, and when being in the lock door state, recess and spacer pin block, the rotor plate supports and presses on the lock shell to L shape limiting plate is the triangular supports state with the spring bolt, and the spring bolt can't contract to the lock shell under the condition that does not have the key to unblank, consequently plays pick-proof effect.

2. The anti-picking anti-theft lock according to claim 1, characterized in that: the lock shell is also provided with a strip-shaped hole relative to the rotating plate, a sliding shaft is fixed in the strip-shaped hole and is arranged in the strip-shaped hole in a sliding mode.

3. The anti-picking anti-theft lock according to claim 1, characterized in that: a transverse compression spring is arranged in the lock shell and is propped against the spring bolt.

4. The anti-picking anti-theft lock according to claim 1, characterized in that: the lock shell is internally provided with a lock reversing assembly, the lock reversing assembly comprises a driving sheet and a clamping component, the driving sheet can be driven by a lock tongue, one side of the driving sheet, which is far away from the lock tongue, is provided with a transverse groove, and the bottom of the transverse groove is provided with a stop column; the block component includes from last to down stirring piece, last cam post and lower cam post that sets gradually, the relative backstop post of lower cam post is equipped with the second draw-in groove with backstop post matched with, the relative backstop post of last cam post is equipped with the first draw-in groove of cooperateing with the backstop post, the lower extreme of last cam post can rotate with lower cam post cooperation, and when first draw-in groove and second draw-in groove all rotated to with the backstop post block, the transmission piece can't slide in the lock shell to the spring bolt also can't contract in the lock shell under the condition that has the key to unblank, consequently plays the effect of anti-lock.