CN210768170U

CN210768170U - Hook type lock latch device

Info

Publication number: CN210768170U
Application number: CN201921386221.1U
Authority: CN
Inventors: 周建伟
Original assignee: Wuyi Beiduo Intelligent Technology Co ltd
Current assignee: Wuyi Beiduo Intelligent Technology Co ltd
Priority date: 2019-08-26
Filing date: 2019-08-26
Publication date: 2020-06-16
Anticipated expiration: 2029-08-26

Abstract

The utility model relates to a hook type latch device, which comprises a latch, a door frame and a door. The front end of the lock latch is provided with a hook part which is folded back towards the back end of the lock latch in parallel at intervals, the front end surface of the hook part is a plane parallel to the middle surface of the lock latch, the area of the front end of the hook part is matched with the area of an insertion opening of the front end surface of the lock latch hole seat, the back part of the lock latch is provided with a shaft connection hole, and the middle part of the lock latch is in sliding fit with the inner side surface of the corresponding door body in a fixed. The front end face of the latch hole seat is provided with an insertion hole for inserting the hook part of the latch, the latch hole seats on the inner side and the outer side of the insertion hole are provided with a hook space for clamping the hook part, and the latch hole seat wall at the front end of the hook space is a clamping part which is mutually hooked and occluded with the hook part. The utility model discloses enable the hasp and the interlock is hung to the latch hole seat each other hook when the locking, reinforcing theftproof performance has simple structure, and the cost of manufacture is low, and the support is firm, intensity height and safe and reliable's advantage.

Description

Hook type lock latch device

Technical Field

The utility model relates to a couple formula hasp device.

Background

At present, the lock latch of the traditional safe case or the lock latch of the door are all in-line type, the lock latch is arranged on a lock latch guide support on the inner end surface of the door, and a driving handle (which can be manual or a key) on the rear side of the lock latch is utilized to drive the lock latch to extend outwards along the door surface direction and is inserted into a corresponding lock latch hole arranged on a door frame so as to achieve the purpose of locking safety. In practical application, the cabinet door or the door of the traditional design structure must be freely opened and closed and keep flexible characteristics, so that a certain gap is determined to be inevitably reserved between the cabinet door and the cabinet body, and the gap greatly reduces the integral anti-theft performance of the safety box or the door.

Generally, a thief can destroy a bolt hole or a latch of a safety box by using a simple prying tool, the destruction principle is that in the prying process, the supporting force direction generated by the prying tool in a gap is not limited by the latch, namely the locking of the traditional latch is only locking in the vertical direction of a cabinet door, no constraint force is generated in the direction parallel to the cabinet door, the prying tool is pried from the door gap and just exerts the supporting force in the direction parallel to the cabinet door, and the door gap is more and more supported, so that the cabinet door is finally pried.

Disclosure of Invention

The utility model aims at designing a couple formula hasp device, enabling the hasp and the mutual hook of bolt hole seat hang the interlock when the locking, reinforcing theftproof performance has simple structure, and the cost of manufacture is low, supports firmly, intensity height and safe and reliable's advantage.

Therefore, the utility model discloses constitute by hasp, door frame and door, wherein:

a latch: the latch is a strip-shaped body with a rectangular cross section, the front end of the latch is provided with a hook part which is folded back towards the rear end of the latch in parallel at intervals, the front end surface of the hook part is a plane parallel to the middle surface of the latch, the area of the front end of the hook part is matched with the area of an insertion opening of the front end surface of the latch hole seat, the rear part of the latch is provided with an axle connection hole, and the middle part of the latch is in sliding fit with the inner side surface of a corresponding door body in a fixed and.

A latch hole seat: the bolt hole seat is a rectangular hollow seat body, the side edge of the bolt hole seat is fixed with the outer side edge of the door frame of the corresponding part into a whole, the front end face of the bolt hole seat is provided with an insertion hole for inserting the hook part of the lock bolt, the bolt hole seat on the inner side and the outer side of the insertion hole is provided with a clamping hook space for clamping the hook part, and the wall of the bolt hole seat at the front end of the clamping hook space is a clamping part which is mutually hooked and occluded with the hook part.

The volume of the hook space is matched with that of the hook part. The outer side surface of the clamping part is parallel to the front end surface of the hook part. The outer side surface of the lock latch shaft seat is clamped on the outer side edge of the lock latch hole seat. The lock latch is in a 7-shaped body.

Above-mentioned structural design has realized the utility model discloses a purpose.

The utility model discloses enable the hasp and the interlock is hung to the latch hole seat each other hook when the locking, reinforcing theftproof performance has simple structure, and the cost of manufacture is low, and the support is firm, intensity height and safe and reliable's advantage. The damage test shows that: the utility model discloses hasp and the interlock is hung to the latch hole seat interlocking when the locking, and the latch hole seat is held with the lateral surface card of hasp axle bed again, forms the whole interlock of mutual hook of door frame, the door body, and the thrust direction that the sled instrument produced in the gap is by hasp, latch hole seat and the whole restriction of hasp axle bed, and the sled instrument can't be pried open.

Drawings

Fig. 1 is a schematic view of the latch according to the present invention.

Fig. 2 is a schematic view of the structure of the open state of the present invention.

Fig. 3 is a schematic structural diagram of the locking step of the present invention.

Fig. 4 is a schematic diagram of the structure of the locking state of the present invention.

Fig. 5 is a front view of the bolt hole seat of the present invention.

Detailed Description

As shown in fig. 1 to 5, a hook latch device is comprised of a latch 1, a doorframe 5 and a door, wherein:

the latch 1: the latch is a bar with a rectangular cross section. The lock latch is in a 7-shaped body, the front end of the lock latch is provided with a hook part 3 which is folded back to the rear end of the lock latch in parallel at intervals, and the lock latch and the hook part are formed by pressing steel. The front end surface of the hook part is a plane parallel to the middle surface of the lock latch. The area of the front end of the hook part is matched with the area of an insertion opening 14 of the front end surface of the bolt hole seat 6, namely, the matching finger can ensure that the hook part of the lock bolt is inserted into the bolt hole seat from the insertion opening. The rear part of the lock latch is provided with a shaft connecting hole 2, a control handle can be connected in the shaft connecting hole, and the lock latch can be driven to move left and right in the lock latch shaft seat along the door by pulling the control handle; the lock shift lever 11 driven by the lock core 13 on the door through the key and the lock shift lever drive the lock latch through the connecting rod 10 can also be the traditional control structure, so the description is not repeated.

The middle part of the lock latch is glidingly matched in a lock latch shaft seat 9 which is welded and fixed with the inner side surface of the corresponding door 12 into a whole, and the lock latch shaft seat is a steel seat.

Latch hole seat 6: the bolt hole seat is a rectangular hollow seat body which is a steel seat. The side of the bolt hole seat is welded and fixed with the outer side of the door frame 5 of the corresponding part into a whole. The inner side edge of the door frame is fixed on the opening 4 of the safety frame body or the opening of the wall body. The front end surface of the latch hole seat is provided with an insertion hole 14 for inserting the hook part of the latch. The latch hole seat inside and outside the insertion hole is provided with a hook space 7 for the hook part to be clamped in. The volume of the hook space is matched with that of the hook part, namely, the hook part can be just clamped in the hook space. The latch hole seat wall at the front end of the hook space is a clamping part 8 which is mutually hooked and occluded with the hook part. The outer side surface of the clamping part is parallel to the front end surface of the hook part.

When the door is locked, the outer side surface of the lock bolt shaft seat is clamped on the outer side edge of the lock bolt hole seat, so that the lock bolt, the lock bolt hole seat and the lock bolt shaft seat are integrally limited in the direction parallel to the door.

As shown in fig. 2 to 4, when the safe or the door is locked, the door or the door 12 is closed, and at this time, the hook portion of the latch is inserted into the latch hole seat from the insertion opening, and the hook portion is located in the hook space in the latch hole seat. And then the lock latch is driven to move towards the direction far away from the gap between the door and the cabinet body reversely, namely, the lock latch slides rightwards in the lock latch shaft seat 9 to drive the hook part 3 at the front end of the lock latch to be clamped on the clamping part of the lock latch hole seat to form a locking state that the hook part and the clamping part are mutually hooked and meshed, and the outer side surface of the lock latch shaft seat is clamped on the outer side edge of the lock latch hole seat, so that the lock latch, the lock latch hole seat and the lock latch shaft seat are integrally limited in the direction parallel to the cabinet. The prying tool cannot pry open the cabinet door or the door. On the contrary, the opening of the cabinet door or the door is adopted, so the description is not repeated.

In a word, the utility model discloses enable the hasp and the interlock is hung each other to the catch hole seat when the locking, reinforcing theftproof performance has simple structure, and the cost of manufacture is low, and the support is firm, intensity height and safe and reliable's advantage.

Claims

1. A hook type latch device is composed of a latch, a door frame and a door, and is characterized in that:

a latch: the latch is a strip-shaped body with a rectangular cross section, the front end of the latch is provided with a hook part which is folded back towards the rear end of the latch in parallel at intervals, the front end surface of the hook part is a plane parallel to the middle surface of the latch, the area of the front end of the hook part is matched with the area of an insertion opening of the front end surface of the latch hole seat, the rear part of the latch is provided with an axle connection hole, and the middle part of the latch is in sliding fit in a latch shaft seat which is fixed with the inner side surface of;

2. A hook latch assembly according to claim 1, further comprising: the volume of the hook space is matched with that of the hook part.

3. A hook latch assembly according to claim 1, further comprising: the outer side surface of the clamping part is parallel to the front end surface of the hook part.

4. A hook latch assembly according to claim 1, further comprising: the outer side surface of the lock latch shaft seat is clamped on the outer side edge of the lock latch hole seat.

5. A hook latch assembly according to claim 1, further comprising: the lock latch is in a 7-shaped body.