CN211369872U

CN211369872U - Super pick-proof door lock

Info

Publication number: CN211369872U
Application number: CN201921548791.6U
Authority: CN
Inventors: 卢华升
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-09-17
Filing date: 2019-09-17
Publication date: 2020-08-28
Anticipated expiration: 2029-09-17

Abstract

The invention discloses a super anti-prying door lock, which comprises a shell, a sliding frame, a world bolt, a linkage rod and a reset device, wherein the sliding frame is arranged in the shell in a sliding mode and can move up and down, the world bolt is arranged at the upper part of the sliding frame and can extend out of the outer side of the upper part of the shell, the right part of the linkage rod is fixed at the lower part of the sliding frame and extends leftwards, the reset device enables the sliding frame to have an upward movement trend, a strip-shaped hole extending in the up-down direction is arranged at the upper part of a connecting rod, the width of the strip-shaped hole in the up-down direction is larger than that of the linkage rod in the. The invention has the advantages that: the pick-proof ability is stronger, and is difficult to cause the damage of tool to lock and door frame.

Description

Super pick-proof door lock

Technical Field

The invention relates to the technical field of locks, in particular to a super anti-prying door lock.

Background

Most of the prior anti-picking doors use one set of main lock and 2 sets of top and bottom locks to cooperate. That is, in the locked state, the bolt of the main lock is inserted into the lock hole on the vertical side of the door frame, and the bolt of the top-bottom door lock is inserted into the lock hole on the horizontal side of the door frame. So, 4 sides of door plant all form with the door frame and are connected (one of them side passes through hinged joint), have greatly improved pick-proof ability.

For conventional locks, the master lock is triggered by a conventional key, while the heaven and earth lock is also triggered by a key. However, at present, a large number of intelligent locks are used, and when the door is opened, the main bolt is always in an extended state, so that the bolt of the heaven-earth lock is also in an extended state. Meanwhile, the end face of the lock tongue of the traditional heaven and earth lock is mostly horizontal, and when the door is closed, the lock tongue can touch the door frame, so that the lock tongue and the door frame are all harmed meaninglessly.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a super anti-prying door lock which has the characteristics of stronger anti-prying capability and difficulty in damaging a lock and a door frame.

In order to achieve the purpose, the invention adopts the technical scheme that: super pick-proof door lock, thereby including the casing, slide set up in this casing can reciprocate the balladeur train, set up in the upper portion of this balladeur train and can stretch out to the world spring bolt in the upper portion outside of this casing, right part be fixed in the lower part of this balladeur train and the trace that extends left, make this balladeur train have the resetting means of upward movement trend, the upper portion of connecting rod is equipped with the bar hole that extends in the upper and lower direction, and this bar hole is greater than the ascending width in upper and lower direction of this trace in upper and lower ascending width of direction, and the left part of this trace is worn at this bar downthehole.

The upper end surface of the world spring bolt is in an inclined plane shape.

Resetting means includes that the middle part hinges the wane on this casing, the upper end is connected this balladeur train and the left extension spring of lower extreme connection on this casing, the right part and the right extension spring of lower extreme connection on this casing of this wane are connected to the upper end to and, the left end hinge of this wane is on this balladeur train.

After adopting the structure, compared with the prior art, the invention has the advantages that: the pick-proof ability is stronger, and is difficult to cause the damage of tool to lock and door frame. In the normal state of the super anti-prying door lock, the world lock tongue always extends out of the shell. When the door is opened, after the main lock is started to retract, the connecting rod can drive the sliding frame to move downwards after linkage, and the world lock tongue of the world lock can retract; however, after the door is opened and the main bolt is reset, all the world bolts can be automatically extended to reset, and can be normally locked after the door is closed, so that the door is ensured to have extremely strong anti-prying capability. Meanwhile, the end part of the world lock tongue of the world lock is made into an inclined plane shape, when the door is closed, the world lock tongue can retract when touching the door frame, so that direct collision between the world lock tongue and the door frame is avoided, unnecessary damage is avoided, and the service lives of the door frame and the world lock tongue are prolonged.

Drawings

The invention is further illustrated with reference to the following figures and examples:

FIG. 1 is an exploded perspective view of a super anti-pry door lock in accordance with an embodiment of the present invention;

FIGS. 2 and 3 are front views of a super pick-resistant door lock in the locked and unlocked states, respectively, according to an embodiment of the present invention;

fig. 4 is a left side view of the connecting rod of the present invention.

Detailed Description

In the following embodiments, only the top and bottom locks mounted on the upper portion of the door panel will be described as an example. The structure of the top-bottom lock installed at the lower part of the door panel is the same as that described in the embodiment, and the difference is only that the direction is opposite when the top-bottom lock is used, and the description is omitted.

Examples, see fig. 1-4: the super anti-picking door lock includes a casing 10, a sliding frame 20 slidably disposed in the casing 10 and capable of moving up and down, a world bolt 30 disposed on the upper portion of the sliding frame 20 and capable of extending to the outer side of the upper portion of the casing 10, a linkage rod 41 having a right portion fixed on the lower portion of the sliding frame 20 and extending leftward, a connecting rod 42 having an upper portion connected to the linkage rod 41, and a reset device 50 for making the sliding frame 20 have an upward movement tendency. Namely, the super anti-prying door lock is arranged at the upper part of a door plate, and after the world lock tongue 30 extends upwards, the world lock tongue can be inserted into a lock hole at the upper part of a door frame to form auxiliary locking; the connecting rod 42 is usually engaged with a main lock on the door panel, and the bolt of the main lock is retracted to drive the connecting rod 42 to move downwards. After the connecting rod 42 moves downwards, the connecting rod 42 drives the sliding frame 20 to move downwards, and then the vertical bolt 30 retracts, so that the door can be opened.

Further speaking:

the upper portion of the connecting rod 42 is provided with a strip-shaped hole 421 extending in the vertical direction, the width of the strip-shaped hole 421 in the vertical direction is greater than the width of the linking rod 41 in the vertical direction, and the left portion of the linking rod 41 penetrates through the strip-shaped hole 421. That is, the linking rod 41 can move up and down freely in the strip-shaped hole 421, and the moving distance is preferably not less than the height difference of the top and bottom lock tongue 30 in the extended and retracted states. Thus, when the door is opened, the connecting rod 42 moves downwards to a relatively lower position, and drives the linkage rod 41 to move downwards; after the door is opened and the locking bolt of the main lock is extended, the connecting rod 42 is reset to a relatively high position, and the locking bolt 30 is extended under the action of the reset device 50. Meanwhile, even if the bolt of the main lock is not retracted, the heaven and earth bolt 30 can be forced to retract after being pressed downwards and return to the extended state in a normal state, so that the normal locking can be ensured after the door is closed.

Optimizing:

the upper end surface of the world lock tongue 30 is inclined. Obviously, the slope of the upper end of the top-bottom dead bolt 30, defined as being close to the doorframe, runs up away from one side of the doorframe and down close to one side of the doorframe. Thus, when the door is closed, the door frame gives a downward pressure to the inclined plane of the upper end surface of the world bolt 30, and the world bolt 30 can retract automatically, so that unnecessary collision between the door frame and the world bolt 30 is avoided.

The reset device 50 includes a rocker 51 hinged to the housing 10 at the middle portion, a left tension spring 52 connected to the carriage 20 at the upper end and connected to the housing 10 at the lower end, and a right tension spring 53 connected to the right portion of the rocker 51 at the upper end and connected to the housing 10 at the lower end. And the left end of the rocker 51 is hinged to the carriage 20. When the left tension spring 52 and the right tension spring 53 are in a relatively balanced state, the world bolt 30 is in an extended state. Thus, the action of the world lock tongue 30 is lighter under the combined action of the two tension springs.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. Super pick-proof door lock, including casing (10), slide set up carriage (20) that can reciprocate in this casing (10), set up in the upper portion of this carriage (20) and can stretch out world spring bolt (30) to the upper portion outside of this casing (10), the right part is fixed in the lower part of this carriage (20) and trace (41) that extend left, connecting rod (42) of this trace (41) are connected on upper portion, make this carriage (20) have resetting means (50) of upward movement trend, its characterized in that: the upper portion of connecting rod (42) is equipped with strip hole (421) that go on extending in the upper and lower direction, and this strip hole (421) width in the upper and lower direction is greater than this trace (41) width in the upper and lower direction, and the left part of this trace (41) wears in this strip hole (421).

2. The super anti-picking door lock according to claim 1, characterized in that: the upper end surface of the world spring bolt (30) is in an inclined plane shape.