CN211287075U

CN211287075U - Explosion-proof lock

Info

Publication number: CN211287075U
Application number: CN201921783949.8U
Authority: CN
Inventors: 熊华; 舒朝晖
Original assignee: Wuyi Jiangling Lock Co ltd
Current assignee: Wuyi Jiangling Lock Co ltd
Priority date: 2019-10-23
Filing date: 2019-10-23
Publication date: 2020-08-18
Anticipated expiration: 2029-10-23

Abstract

The utility model belongs to the technical field of machinery, in particular to an explosion-proof lock, which comprises a lock body and a cover plate arranged on one side of the lock body, wherein a square strip seat is arranged in the lock body, a lock hook and a limiting piece arranged on the lock hook are sleeved on the square strip seat, the upper end of the lock hook is arranged in a lock hole formed on one side of the lock body, and one side of the lock hook is abutted with a first limiting column formed in the lock body; a through hole is formed in one side of the limiting piece, a torsion spring penetrates through the through hole, and the other end of the torsion spring is sleeved on a second limiting column formed in the lock body. The utility model aims at providing an explosion-proof lock of simple structure, equipment convenience, long service life.

Description

Explosion-proof lock

Technical Field

The utility model belongs to the technical field of machinery, refer in particular to an explosion-proof lock.

Background

The lock is one of living parts which are frequently touched by everyone, is widely applied in the society at present, and particularly, a violence-preventing door opening device is added to a door of a hotel at present, the device needs to be purchased independently, the internal structure is complex, the production cost is relatively high, and when damage occurs, the replacement cost is high.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a simple structure, equipment convenience, have the explosion-proof lock that prevents the effect of violence opening the door.

The purpose of the utility model is realized like this: an explosion-proof lock comprises a lock body and a cover plate arranged on one side of the lock body, wherein a square bar seat is arranged in the lock body, a lock hook and a limiting piece arranged on the lock hook are sleeved on the square bar seat, the upper end of the lock hook is arranged in a lock hole formed in one side of the lock body, and one side of the lock hook is abutted with a first limiting column formed in the lock body; a through hole is formed in one side of the limiting piece, a torsion spring penetrates through the through hole, and the other end of the torsion spring is sleeved on a second limiting column formed in the lock body.

Preferably, the outer wall of the square bar seat is formed with a limiting part, and the limiting part is clamped with the locking hook and a limiting hole formed in the limiting sheet.

Preferably, the lock body is provided with limiting pieces formed on two sides thereof, and the limiting pieces are clamped with limiting grooves formed on two sides of the cover plate.

Compared with the prior art, the utility model outstanding and profitable technological effect is: the utility model discloses an explosion-proof lock inner structure is simple, and is stable, is difficult to damage under the condition of long-time use to the maintenance is simple, and low in production cost installs and can prevent that the people outside can violently open the door on the door, has good security.

Drawings

FIG. 1 is a schematic view of the present invention;

fig. 2 is a schematic view of the present invention with the cover removed.

Detailed Description

The invention will be further described with reference to specific embodiments.

As shown in fig. 1-2, an explosion-proof lock comprises a lock body 1 and a cover plate 2 arranged on one side of the lock body 1, wherein a square bar seat 3 is arranged in the lock body 1, a locking hook 4 and a limiting piece 5 arranged on the locking hook 4 are sleeved on the square bar seat 3, the upper end of the locking hook 4 is arranged in a locking hole 6 formed on one side of the lock body 1, and one side of the locking hook 4 is abutted to a first limiting column 7 formed in the lock body 1; a through hole 8 has been seted up to spacing piece 5 one side, wear to be equipped with torsional spring 9 in the through hole 8, the other pot head of torsional spring 9 is established on the spacing post 10 of fashioned second in the lock body 1.

The explosion-proof lock has the advantages of simple and stable internal structure, low possibility of damage under the condition of long-time use, simple maintenance and low production cost. Through rotating square strip seat 3, can drive latch hook 4 and pop out from lockhole 6 and lock, after the user needs the unblock, the user just can reverse rotation square strip seat 3, receives the elasticity of torsional spring 9 in the pivoted, and latch hook 4 resets and rebounds, and first spacing post 7 is received in the back butt, realizes reseing.

Preferably, a limiting part 11 is formed on the outer wall of the square bar seat 3, and the limiting part 11 is clamped with a limiting hole 12 formed in the locking hook 4 and the limiting sheet 5.

Spacing portion 11 and the mutual joint of spacing hole 12 that this technical scheme set up can drive latch hook 4 and spacing piece 5 and rotate when square strip seat 3 rotates, make holistic structure more stable.

Preferably, limiting blocks 14 are formed on two sides of the lock body 1, and the limiting blocks 14 are clamped with limiting grooves 13 formed in two sides of the cover plate 2.

The cover plate 2 and the lock body 1 of the technical scheme are mutually clamped by the limiting groove 13 and the limiting block 14 respectively, so that the structural stability of the anti-explosion lock can be improved, and the service life of the anti-explosion lock is prolonged.

The above-mentioned embodiment is only the preferred embodiment of the present invention, and does not limit the protection scope of the present invention according to this, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. An explosion-proof lock is characterized by comprising a lock body (1) and a cover plate (2) arranged on one side of the lock body (1), wherein a square strip seat (3) is arranged in the lock body (1), a lock hook (4) and a limiting piece (5) arranged on the lock hook (4) are sleeved on the square strip seat (3), the upper end of the lock hook (4) is arranged in a lock hole (6) formed in one side of the lock body (1), and one side of the lock hook (4) is abutted to a first limiting column (7) formed in the lock body (1); a through-hole (8) has been seted up to spacing piece (5) one side, wear to be equipped with torsional spring (9) in through-hole (8), the other pot head of torsional spring (9) is established on lock body (1) fashioned spacing post of second (10).

2. The explosion-proof lock of claim 1, characterized in that, the outer wall of the square bar seat (3) is formed with a limiting part (11), and the limiting part (11) is clamped with the locking hook (4) and a limiting hole (12) formed in the limiting plate (5).

3. The explosion-proof lock according to claim 1, characterized in that a limiting block (14) is formed on both sides of the lock body (1), and the limiting block (14) is clamped with a limiting groove (13) formed on both sides of the cover plate (2).