CN2420398Y - Rack-type large door locking device - Google Patents

Abstract

The utility model discloses a rack-type large door locking device. A lock core is arranged on a lock body, and the outer side of the lock core is a gear structure; both ends of a door bolt are hook bodies, which can be respectively matched and connected with the lock body and positioning grooves on the hook bodies, and the middle part of the door bolt is also fixed with a gear rack which forms a meshed pair with a gear at the outer side of the lock core; the lock core is rotated to drive the linkage of the gear, and the corresponding top and bottom displacement of the gear rack; the hook bodies on both ends of the door bolt respectively move in and out the lock body and the positioning grooves of the hook bodies, causing the lock body and the hook bodies to be separated or fixed. The door bolt and the lock are formed into integration, and can be installed in the inner side of a door, which effectively avoids the door bolt and the door lock to be destroyed. The utility model relates to a large door locking device which has the advantage of simple structure, easy opening, anti-identifying and anti-prizing performance, and high safety, and can be widely used for workshops, storehouses and yards.

Description

The large-scale Locking means of door of rack-and-pinion

The utility model discloses the large-scale Locking means of door of a kind of rack-and-pinion, relates to mechanical door lock

Technical field.

At present, use keeper that door is pinned usually, pin keeper with common lockset again, prevent that door is opened for large-scale door (as: doors such as workshop, warehouse, garden); Or with chain door chain is lived, again on the chain lock, its shortcoming is to go up keeper, wear the chain operation trouble, and keeper, chain expose the outside that is installed in door, and lockset or chain are easy to go to pot, and the gate is illegally opened, poor stability.

The purpose of this utility model aims to provide a kind of large-scale Locking means of door, solves problems such as existing large-scale door lock easily goes to pot, troublesome poeration.

For realizing that the purpose of this utility model adopts following solution: lock core is located on the lock body, the outside is a gear structure, lock body and collude and also be provided with positioning groove on the body, the two ends of keeper are the crotch body, can be connected with positioning groove respectively, the middle part of keeper is fixed with the gear formation engagement in the tooth bar and the lock core outside and pays, rotational lock core driven gear interlock, moving up and down of tooth bar correspondence, the hook body of keeper both sides passes in and out lock body respectively and colludes the positioning groove of body, make lock body and collude that body separates or fixing, realize the door locking function.

Good effect of the present utility model is: keeper and lockset are one, can be installed in the inboard of door, have effectively avoided keeper, door lock destroyed, simple in structure, it is convenient to open, anti-other pick-proof, safe and reliable, can be widely used in the locking device of large-scale door such as workshop, warehouse, garden.

Fig. 1 is the utility model structure principle chart.

Further specify the utility model below in conjunction with accompanying drawing: with reference to Fig. 1, lock body 4 is provided with lock core 3, the outside of lock core 3 is inlaid with gear 6, hook body 9 is made at the two ends of keeper 2 respectively, center fixed has tooth bar 7, can mesh with the gear 6 of lock core 3, lock body 4, colluding and also have positioning groove 8 on the body 1 respectively, be connected with the hook body 9 of keeper 2 both sides, is to strengthen lockset intensity, keeper 2 is two up and down, structure is identical, its tooth bar 7 respectively with gear 6 engagement of lock core 3, rotational lock core 3 hour racks 7 drive keepers 2 and oppositely move up and down, open and close lockset, finish the locking of opposite house.

Claims (2)

1, the large-scale Locking means of door of a kind of rack-and-pinion, by lock body (4), lock core (3), collude body (1) and form, it is characterized in that: lock body (4) is provided with lock core (3), the outside of lock core (3) is inlaid with gear (6), hook body (9) is made at the two ends of keeper (2) respectively, center fixed has gear (6) engagement of tooth bar (7) and lock core (3), and lock body (4) and collude and have positioning groove (8) on the body (1) is connected with the hook body (9) of keeper (2) both sides.

2, locking device according to claim 1 is characterized in that: keeper (2) is identical two up and down of structure, its tooth bar (7) respectively with gear (6) engagement of lock core (3).