CN112343440A

CN112343440A - Pick-proof and smash-proof door locking device

Info

Publication number: CN112343440A
Application number: CN202011598158.5A
Authority: CN
Inventors: 卢同心; 卢绿涵
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2021-02-09

Abstract

The invention provides a door locking device with prying and smashing resistance, which consists of a lock arm A (10), a lock arm B (20), a padlock (30) and a protective cover (40). The protective cover (40) is a box-shaped part with an opening (47) at the bottom, and symmetrical through notches (46) are arranged on the front plate (41) and the rear plate (42) of the protective cover; the lock arm A (10) and the lock arm B (20) which are provided with upper and lower notches at the middle parts are fixed on the door leaf and the door frame in parallel and parallel, and pass through the through notch (46) of the protective cover (40) and the annular lock beam (31) of the padlock (30), and the padlock (30) is limited between the upper and lower notches of the lock arm A (10) and the lock arm B (20) and is also limited in the protective cover (40); the upper part of the padlock (30) is provided with an annular lock beam (31), and the lower part is provided with a key hole (32); the locking and unlocking can be accomplished by operating the padlock (30) at the bottom opening (47) of the protective cover (40).

Description

Pick-proof and smash-proof door locking device

Technical Field

The invention belongs to the field of machinery, and relates to a prying-resistant and smashing-resistant door locking device.

Background

Deposit the storehouse room of valuables, hazardous articles, the legal requirement object control article strictly, in order to ensure the safety of storehouse room, often need set up multiple locking device to the storehouse room, if: the padlock comprises an open lock, a built-in lock, a digital coded lock, a fingerprint lock, a face recognition lock and other devices or equipment, wherein the open lock device comprises a padlock arranged outside, and on the premise of ensuring the normal use of the padlock, a protection device is required to be applied to the padlock to prevent the padlock from being easily pried or smashed to cause the failure of the padlock.

The application number is CN201120063815.6 'a padlock anti-prying box', its mode of use is: "insert the lock piece on the door to the upper position in the back plate 2 and open in the opening 201, the padlock is in the anti-picking box of padlock, pass the lock piece hole on the door, and lock". Because this patent need "insert the latch fitting on the door to back plate 2 well upper portion position and open in having opening 201" earlier in the use, "let" padlock in padlock pick-proof box, pass the latch fitting hole on the door, and lock ", user (or user) in" locking "and" unblank "in-process, need stretch the hand to" pick-proof box ", consequently, need this" pick-proof box "to possess great inner space, correspondingly, this" pick-proof box "also need have bigger size, this" pick-proof box "of preparation also needs to consume more material.

Disclosure of Invention

The invention aims to provide a door locking device with prying and smashing prevention, which prevents a padlock from being easily pried or smashed by a lawbreaker after being locked, so that the padlock is disabled.

In order to achieve the purpose, the invention adopts the following technical scheme

A pick-proof and smash-proof door locking device comprises: the protective cover is of a box-shaped structure with an opening at the bottom and comprises a front plate, a rear plate, an upper plate, a left side plate and a right side plate; the middle upper parts of the front plate and the rear plate are provided with symmetrical through notches; the front plate, the rear plate, the upper plate, the left side plate and the right side plate are connected together by welding or are formed by cutting an integral section; the padlock is limited between the upper notch and the lower notch of the locking arm A, and meanwhile, the padlock is also limited inside the protective cover.

The middle part of the locking arm armor is provided with an upper notch and a lower notch, and the symmetrical center planes of the upper notch and the lower notch are the same plane. The width of the upper gap is slightly wider than the diameter of the lock beam of the padlock, and the upper gap is used for limiting the lock beam of the padlock in the upper gap; the width of the lower notch is slightly wider than the thickness of the padlock body, and the lower notch is used for limiting the padlock body in the lower notch.

The locking arm B has the same shape, the same height and the same thickness as the locking arm A, and a notch part at the upper end of the locking arm B and an upper notch of the locking arm A have the same shape and size; the lower end notch part of the locking arm B and the lower notch of the locking arm A have the same shape and size.

One end of the locking arm armor is fixed on the door leaf, and the other end of the locking arm armor is suspended in the air; one end of the locking arm B is fixed on the door frame, and the other end of the locking arm B is also suspended. Or one end of the locking arm armor is fixed on the door frame, and the other end of the locking arm armor is suspended; one end of the locking arm B is fixed on the door leaf, and the other end of the locking arm B is also suspended. When the door leaf is closed, the locking arm A and the locking arm B are close to each other in parallel, the upper end surface and the lower end surface of the locking arm A and the upper end surface of the locking arm B are flush, the suspended end surfaces are flush, and the upper notch of the locking arm A is flush with the upper notch of the locking arm B; the lower notch of the locking arm A is flush with the lower notch of the locking arm B.

The padlock is a padlock with a key opened at the top of the lower part of the lock body, the upper part is provided with a ring-shaped lock beam which can be buckled, and the lower part is provided with a key hole.

When the padlock is locked, the lock beam is buckled with the lock body, a ring without a notch is formed between the lock body and the lock beam, the padlock is limited between an upper notch and a lower notch of the lock arm A, the padlock and the lock arm A cannot be separated, and the padlock and the lock arm B cannot be separated at the moment because the lock arm A and the lock arm B are arranged in parallel and level; when the padlock is unlocked, the lock beam bounces upwards, a notched ring is formed between the lock body and the lock beam, the height of the ring is greater than that of the lock arm A, and the padlock can be taken out from the lock arm A and the lock arm B.

The invention has the advantages that:

1. simple and compact structure, low processing and manufacturing cost and less material consumption.

2. Convenient to use, easily operation, and the protecting effect is good.

Drawings

FIG. 1 is a pictorial representation of a preferred embodiment of the present invention, depicting the shield being translated a distance along the length of the arm armor.

Detailed Description

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

A pick-proof and smash-proof door locking device comprises: the lock comprises a lock arm A10, a lock arm B20, a padlock 30 and a protective cover 40, wherein the protective cover 40 is of a box-shaped structure with an opening 47 at the bottom and comprises a front plate 41, a rear plate 42, an upper plate 43, a left side plate 44 and a right side plate 45; the middle upper parts of the front plate 41 and the rear plate 42 are provided with symmetrical through notches 46; the front plate 41, the rear plate 42, the upper plate 43, the left side plate 44 and the right side plate 45 are connected together by welding or are formed by cutting an integral section bar; the locking arm A10 and the locking arm B20 which are arranged in parallel and close to each other pass through the through notch 46 of the protective cover 40 and the hole formed by the annular lock beam 31 of the padlock 30, the padlock 30 is limited between the upper notch 11 and the lower notch 12 of the locking arm A10, and the padlock 30 is also limited inside the protective cover 40.

The middle part of the locking arm armor 10 is provided with an upper notch 11 and a lower notch 12, and the symmetrical center planes of the upper notch 11 and the lower notch 12 are the same plane. The width of the upper gap 11 is slightly wider than the diameter of the lock beam 31 of the padlock 30, and the upper gap 11 is used for limiting the lock beam 31 of the padlock 30 in the upper gap 11; the width of the lower notch 12 is slightly wider than the thickness of the lock body 33 of the padlock 30 for restraining the lock body 33 of the padlock 30 within the lower notch 12.

The locking arm B20 has the same shape, the same height and the same thickness as the locking arm A10, and the upper end notch part of the locking arm B20 has the same shape and size as the upper notch 11 of the locking arm A10; the lower end notch portion of the lock arm b 20 has the same shape and size as the lower notch 12 of the lock arm a 10.

The first implementation mode comprises the following steps: one end of the locking arm armor 10 is fixed on the door leaf, and the other end is suspended in the air; one end of the locking arm B20 is fixed on the doorframe, and the other end is also suspended. When the door leaf is closed, the locking arm A10 and the locking arm B20 are close to each other in parallel, the upper end face and the lower end face of the locking arm A10 and the upper end face of the locking arm B20 are flush, the suspended end faces are flush, and the upper notch 11 of the locking arm A10 is flush with the upper end notch of the locking arm B20; the lower notch 12 of the locking arm A10 is flush with the lower end notch of the locking arm B20.

The second embodiment:

one end of the locking arm armor 10 is fixed on the door frame, and the other end is suspended in the air; one end of the locking arm B20 is fixed on the door leaf, and the other end is also suspended. When the door leaf is closed, the locking arm A10 and the locking arm B20 are close to each other in parallel, the upper end face and the lower end face of the locking arm A10 and the upper end face of the locking arm B20 are flush, the suspended end faces are flush, and the upper notch 11 of the locking arm A10 is flush with the upper end notch of the locking arm B20; the lower notch 12 of the locking arm A10 is flush with the lower end notch of the locking arm B20.

The padlock 30 is a top-opening type padlock in which a key is placed in the lower portion of a lock body 33, and has an annular lock beam 31 in the upper portion thereof, and a keyhole 32 in the lower portion thereof.

When the padlock 30 is locked, the lock beam 31 is buckled with the lock body 33, a ring without a notch is formed between the lock body 33 and the lock beam 31, the padlock 30 is limited between the upper notch 11 and the lower notch 12 of the lock arm A10, the padlock 30 and the lock arm A10 cannot be separated, and the padlock 30 and the lock arm B20 cannot be separated at the moment because the lock arm A10 and the lock arm B20 are arranged in parallel and level; when the padlock 30 is unlocked, the lock beam 31 bounces upwards, a notched ring is formed between the lock body 33 and the lock beam 31, the height of the ring is greater than that of the lock arm A10, and the padlock 30 can be taken out of the lock arm A10 and the lock arm B20.

Application method

Locking of the padlock 30:

in a first step, the opened padlock 30 is placed in the protective cover 40, and the locking arm a 10 and the locking arm b 20, which are arranged flush and closely, are passed through the through slot 46 of the protective cover 40 and the notched ring formed between the lock body 33 and the lock beam 31.

And secondly, fixing the protective cover 40 by one hand to prevent the protective cover from moving up and down, holding the lock body 33 of the padlock 30 by the other hand, and forcibly pushing upwards to lock the padlock 30 under the limit of the inner wall of the upper plate 43 of the protective cover 40, so that the lock beam 31 and the lock body 33 are fastened.

Unlocking of the padlock 30: a key is inserted into the keyhole 32 of the padlock 30 from the opening 47 at the bottom of the protective cover 40, the key is screwed to release the lock beam 31 from the lock body 33, and the padlock 30 and the protective cover 40 are taken out from the lock arm A10 and the lock arm B20 together to realize unlocking.

Claims

1. The utility model provides a lock door gear of pick-proof pounding prevention which characterized in that: the protective cover is composed of a locking arm A (10), a locking arm B (20), a padlock (30) and a protective cover (40), wherein the protective cover (40) is of a box-shaped structure with an opening (47) at the bottom, and comprises a front plate (41), a rear plate (42), an upper plate (43), a left side plate (44) and a right side plate (45);

wherein: the middle upper parts of the front plate (41) and the rear plate (42) are provided with symmetrical through notches (46);

the front plate (41), the rear plate (42), the upper plate (43), the left side plate (44) and the right side plate (55) are connected together by welding or are formed by cutting an integral section bar;

the lock arm A (10) and the lock arm B (20) which are arranged in parallel and close to each other pass through the through notch (46) of the protective cover (40) and the hole formed by the annular lock beam (31) of the padlock (30), the padlock (30) is limited between the upper notch (11) and the lower notch (12) of the lock arm A (10), and meanwhile, the padlock (30) is also limited inside the protective cover (40).

2. The anti-prying and anti-smashing door locking device according to claim 1, wherein: the middle part of the locking arm armor (10) is provided with an upper notch (11) and a lower notch (12), and the symmetrical planes of the upper notch (11) and the lower notch (12) are the same plane.

3. The anti-prying and anti-smashing door locking device according to claim 1, wherein: the locking arm B (20) has the same shape, the same height and the same thickness as the locking arm A (10), and the notch part at the upper end of the locking arm B (20) has the same shape and size as the notch part (11) at the upper end of the locking arm A (10); the lower end notch part of the locking arm B (20) has the same shape and size as the lower notch (12) of the locking arm A (10).

4. The anti-prying and anti-smashing door locking device according to claim 1, wherein: the padlock (30) is a padlock with a key opened at the top of the lower part of the lock body (33), the upper part is provided with an annular lock beam (31) which can be buckled, and the lower part is provided with a key hole (32).

5. The anti-prying and anti-smashing door locking device according to claim 1, wherein: the locking arm A (10) and the locking arm B (20) which are arranged close to each other in parallel are that one end of the locking arm A (10) is fixed on the door leaf, the other end of the locking arm A is suspended, one end of the locking arm B (20) is fixed on the door frame, and the other end of the locking arm B is suspended;

when the door leaf is closed, the locking arm A (10) and the locking arm B (20) are close to each other in parallel, the upper end face and the lower end face of the locking arm A (10) and the upper end face of the locking arm B (20) are flush, the suspended end faces are flush, and the upper notch (11) of the locking arm A (10) is flush with the upper end notch of the locking arm B (20); the lower notch (12) of the locking arm A (10) is flush with the lower end notch part of the locking arm B (20).

6. The anti-prying and anti-smashing door locking device according to claim 1, wherein: the lock arm A (10) and the lock arm B (20) which are arranged close to each other in parallel are that one end of the lock arm A (10) is fixed on a door frame, the other end of the lock arm A is suspended, one end of the lock arm B (20) is fixed on a door leaf, and the other end of the lock arm B is suspended;