CN2420392Y

CN2420392Y - Gear linked safety lock

Info

Publication number: CN2420392Y
Application number: CN 00211853
Authority: CN
Inventors: 赵革成
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-05-16
Filing date: 2000-05-16
Publication date: 2001-02-21
Anticipated expiration: 2010-05-16

Abstract

The utility model relates to a gear-linked safe lock, which comprises a lock body, lock cores, a shifting tongue, cylinders and lock springs. The utility model is characterized in that two lock cores are in parallel arranged on the lock body and the inner ends of two lock cores are fixedly connected with gears which are engaged with each other to drive the gears; the inner end of one lock core is connected with the shifting tongue; each lock core hole body is provided with at least two lock springs in cylinder holes in a tight-pressing state; the total length of the cylinders in the lock body is larger than the length of the cylinder holes of the lock body and the length of the cylinder holes of the lock core is larger than the length of a key door. The utility model has the advantages of opening prevention from technical means by burglars and professional unlocking personnel, such as a tooth key or a steel wire to horizontally push the cylinders, and good safety assurance.

Description

Gear interlock safety lock

The utility model belongs to a kind of lockset, particularly a kind of gear interlock insurance lockset.

Present many town dwellers have installed security door for safety precaution, though security door crushes bad certain antitheft effect that has to general sled, but pushing up flat pellet shot from a slingshot or the teeth key open method can not finely be taken precautions against for the superb employing steel wire of gimmick, is to prevent that thief and professional unlock staff that gimmick is superb from opening.

The purpose of this utility model provides a kind of gear interlock safety lock, can prevent effectively that superb thief of gimmick and special unlock staff from adopting steel wire to push up flat pellet shot from a slingshot or the teeth key open method is opened, and improves the safety feature of lockset.

The purpose of this utility model is achieved in that it comprises lock body, and lock core is dialled tongue, pellet shot from a slingshot and snap, its technical characterictic are that two lock cores, the inner affixed gear of two lock cores are installed on lock body side by side, engaged transmission gear between two gears, the inner of one of them lock core connect dials tongue; Each lock core hole lock body has in the snap of impaction state in two pellet shot from a slingshot holes and the lock body pellet shot from a slingshot total length at least greater than the lock spring hole length; The length of lock core marble hole is greater than the length of key door.

The utility model has the advantages that: owing to have the twin-lock core of interlock, thereby insert two and must rotate synchronously when key operated, thereby avoid theft molecule or professional unlock staff with teeth key unblank may.Simultaneously since the length of lock core marble hole greater than the length of key door, make and unblank more can't carry out with teeth key; Owing to take the length of the length of the snap that compresses and the interior pellet shot from a slingshot of lock body, thereby can effectively prevent to push up the method for unlocking of flat pellet shot from a slingshot, lockset safety feature height with steel wire greater than lock marble hole.

The utility model is described in further detail below in conjunction with accompanying drawing:

Fig. 1 is the utility model structural representation.

Fig. 2 is the vertical view of Fig. 1.

Fig. 3 is the upward view of Fig. 1.

Fig. 4 is a pellet shot from a slingshot package assembly schematic diagram in the pellet shot from a slingshot hole of lock body.

Fig. 5 is lock core marble hole length and key door length ratio schematic diagram.

See Fig. 1-3, the utility model concrete structure is as follows: assembling

lock core

2 and 8 arranged side by side on the lock body 1 has certain distance between the

lock core

2 and 8; Rear end in

lock core

2 and 8 circumferentially connects firmly

gear

3 and 7 by square shaft respectively, by jump ring 4 axial location; Between two gears, be rotatably installed in travelling gear 5 on the lock body, also by jump ring 4 axial location; Mesh with

gear

3 and 7 respectively travelling gear 5 both sides, and three gears are realized interlock; Rear end at lock core 8 connects group tongue 6; See Fig. 4, assembling snap 11 and pellet shot from a slingshot 12 in the lock marble hole, have the snap 11 of compression in two lock marble holes and the length that interior pellet shot from a slingshot 12 length of lock body are greater than lock marble hole 13 in five lock marble holes of one row at least, promptly pellet shot from a slingshot protrudes 2 millimeters of lock marble holes in the lock body; See Fig. 5, the length L of lock core marble hole 9 is greater than the length M of key door 10.

Claims

1, a kind of gear interlock safety lock, it comprises lock body, lock core, dials tongue, pellet shot from a slingshot and snap, it is characterized in that installing side by side on lock body two lock cores, the inner affixed gear of two lock cores, engaged transmission gear between two gears, the inner of one of them lock core connect dials tongue; Each lock core hole lock body has in the snap of impaction state in two pellet shot from a slingshot holes and the lock body pellet shot from a slingshot total length at least greater than the lock spring hole length; The length of lock core marble hole is greater than the length of key door.