CN2057202U

CN2057202U - Theft-proof door lock

Info

Publication number: CN2057202U
Application number: CN 89208955
Authority: CN
Inventors: 蔡发智
Original assignee: YICHANG STEEL WINDOW FACTORY HUBEI PROV
Current assignee: YICHANG STEEL WINDOW FACTORY HUBEI PROV
Priority date: 1989-06-17
Filing date: 1989-06-17
Publication date: 1990-05-16

Abstract

The utility model relates to a theft-proof door lock, which is a technical plan for solving that an existent steel rail door lock is unsafe, a stable property is not high, and the use and the replacement are inconvenient. The utility model is characterized in that a drawer lock is fixedly sealed in a lock box; after a lock tongue is felicitously matched with a lock hook and a lock catch, the locking is easy; the unlocking is convenient. Simultaneously the utility model has anti-prizing function, simple structure and safety and in particular is suitable for being used on the various steel rail doors and fixed doors.

Description

Theft-proof door lock

The utility model is a kind of safe-guard door lock.

At present, the general employing of pull gate is the mode that the bolt-type keeper adds padlock on the market, promptly heavy, nor safety uses inconvenience, a kind of on the market Door lock, though strong degree increases, its complex structure, and be welded on the doorframe, be difficult for changeing, thereby use also very inconvenient.

The purpose of this utility model is, solves the deficiencies in the prior art, proposes a kind ofly to have simple in structurely, safe and reliable, and is convenient to overhaul and change the technical solution of Door lock.

Technical solution of the present utility model is: be made up of snap close (12) and lock box (7), it is characterized in that: drawer's lock (6) fixedly is enclosed in the bottom of lock box (7) inner bottom plating (2), dead bolt (5) front end is equipped with latch hook (3), and latch hook (3) is inserted in the pilot hole (4) on the base plate (2), and by spring (8) tension latch hook (3); Go up the middle part at locking closure (11) and have a rectangular through holes (10).

Technical solution of the present utility model also is: lock box (7) is fixed on the doorframe (16) by many bolts (1), and after dodge gate (14) was closed and locked, bolt (1) was sheltered from effectively by dodge gate (14) avris.

3 in the utility model accompanying drawing:

Fig. 1 is a door lock internal construction schematic diagram.

Fig. 2 is that door lock is used schematic diagram on movable steel fence gate.

Fig. 3 is the door lock scheme of installation.

Each sequence number is expressed as respectively among the figure:

1, bolt, 2, base plate, 3, latch hook, 4, pilot hole, 5, dead bolt, 6, drawer's lock, 7, lock box, 8, spring, 9, mention, 10, rectangular through holes, 12, snap close, 13, key, 14, dodge gate, 15, the dodge gate connecting rivet, 16, doorframe.

In conjunction with the accompanying drawings, narration the utility model implementation process:

Lock box (7) is fixed on the doorframe (16) with bolt (1), snap close (12) then is fixed on dodge gate (14) avris, when door is closed, snap close (12) passes rectangular through holes (10) and enters lock box (7), promote latch hook (3) and rise, snap close (12) mention that (9) put in place after, under the effect of spring (8), latch hook (3) falls, and mentions (9) interlock, and dodge gate (14) just has been lockable; In the time will opening the door, inject drawer's lock (6) back with key (13) and rotate, dead bolt (5) rises, on push away latch hook (3), make it to break away from pulling dodge gate (14) with the mentioning of snap close (12) (9), snap close (12) has just left lock box (7), and door has promptly been opened.

The advantages such as the safe-guard door lock according to the utility model fabrication techniques has security insurance, and is simple in structure, and the dismounting repair is convenient are particularly useful at all kinds of movable steel fence gates, use on the fixed gate.

Claims

1, a kind of safe-guard door lock, formed by snap close and lock box, it is characterized in that: drawer's lock (6) fixed sealing is contained in the bottom of lock box (7) inner bottom plating (2), dead bolt (5) front end is equipped with latch hook (3), and latch hook (3) is inserted in the pilot hole (4) on the base plate (2), and, go up the middle part at locking closure (11) and have a rectangular through holes (10) by spring (8) tension latch hook (3).

2, safe-guard door lock according to claim 1 is characterized in that: lock box (7) is fixed on the doorframe (16) by bolt (1), and after dodge gate (14) was closed and locked, bolt (1) was sheltered from by dodge gate (14) avris.