CN2350487Y

CN2350487Y - Three-point locking type door lock

Info

Publication number: CN2350487Y
Application number: CN 98228554
Authority: CN
Inventors: 宋清国
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-04-01
Filing date: 1998-04-01
Publication date: 1999-11-24
Anticipated expiration: 2008-04-01

Abstract

The utility model relates to a three point locking formula lock has changed ordinary single-point locking or two point locking mode. The structure of a gear, a rack guide rod and a right-angle stop dog is introduced into the lock, and the lock forms an upper, middle and lower three-point locking structure by utilizing the meshing relation of the rack guide rod and a central gear and the linkage structure of a lock core, the gear, the right-angle stop dog and the rack guide rod. The lock has safe and reliable locking effect on the cabinet with larger area.

Description

3 locking-type door locks

The utility model relates to a kind of 3 locking-type door locks.

Existing rack door lock, normally used is single-point locking or 2 lockings up and down.It is relatively poor that this door lock is decided effect for the bigger cabinet door lock of area, and handle reverse is owing to adopted spring assembly, and its reliability is also relatively poor.

In view of the deficiency that existing rack exists with door lock, the purpose of this utility model is that a kind of locking area of development is bigger, the door lock of better reliability.

The utility model structure is as follows:

These 3 locking-type door locks comprise fastener, lock core, lock housing and securing member, it is characterized in that also having the right angle block, gear, two tooth bar guide rods, two rollers and locking frame, gear is fixed on the lock housing, its center is a square opening, two tooth bar guide rods upper end is block, the top is equipped with a trundle, its lower end is a tooth bar, the parallel reverse and gears engaged of two tooth bars, rotate and move at both direction up and down with gear, the lock core front end is one square, with the square hole tight fit of gear centre, block one end in right angle passes lock housing, by securing member right angle block and lock core are fastened as one, the locking frame is separately fixed at the two ends of door or doorframe, and fastener is fixed in doorframe or the last position corresponding to trundle and right angle block of door, during locking, lock core, gear, right angle block and the interlock of tooth bar guide rod, two tooth bar guide rods are along with the rotation of gear is being moved on the both direction up and down, during locking, the tooth bar guide rod respectively up and down both direction move to the locking frame in, form with the right angle block, in, following 3 latch-up structures.

This 3 locking-type door locks are installed on cabinet door and the doorframe, owing to keyed end is all arranged, can make the bigger door of area also can positive lock at the upper/lower terminal and the middle part of door.

Describe the utility model in detail below in conjunction with accompanying drawing:

3 locking-type door locks of Fig. 1 assembly relation exploded view.

3 locking-type door locks of Fig. 2 rack scheme of installation.

These 3 locking-type door locks are by fastener 11, plastic dam 10, lock core 8, lock housing 4, right angle block 6, gear 3, two tooth bar guide rods 2, two trundles 7 and locking frame 9 constitute, gear 3 is fixed on the lock housing 4 by securing member, gear centre is a square opening, it is block that two tooth bar guide rods, 2 upper ends are, the top is equipped with trundle 7, tooth bar guide rod 2 lower ends are tooth bar, parallel reverse and gear 3 engagements of two tooth bar guide rods, rotate and move with gear at both direction up and down, lock core 8 front ends are square, pass plastic dam 10, with gear centre square hole tight fit, block 6 one ends in right angle pass lock housing 5, and are by securing member that itself and lock core 8 is fastening.Locking frame 9 is separately fixed at the door or the two ends of doorframe, and fastener 11 is installed on three points in rack doorframe upper, middle and lower, adapts with the trundle 7 and right angle, the middle part block 6 at tooth bar guide rod two ends about in the of 2, constitutes 3 locking-types.

During locking, lock core 8, gear 3, right angle block 6 and 2 interlocks of tooth bar guide rod, both direction moves in the locking frame 9 two tooth bar guide rods 2 along with the locking of gear 3 is rotated up and down, forms 3 lock constructions in upper, middle and lower with right angle block 6.

Claims

1,3 locking-type door locks, comprise fastener, lock core, lock housing and securing member, it is characterized in that also having the right angle block, gear, two tooth bar guide rods, two trundles and locking frame, gear is fixed on the lock housing, its center is a square opening, two tooth bar guide rods upper end is block, a trundle is installed at the top, its lower end is a tooth bar, the parallel reverse and gears engaged of two tooth bars, rotate and move at both direction up and down with gear, the lock core front end is square, with the square hole tight fit of gear centre, block one end in right angle passes lock housing, by securing member right angle block one end and lock core are fastened as one, the locking frame is separately fixed at the two ends of door or doorframe, and fastener is fixed in doorframe or the last position corresponding to trundle and right angle block of door.