CN2142136Y

CN2142136Y - High-performance anti-theft lock

Info

Publication number: CN2142136Y
Application number: CN 92216053
Authority: CN
Inventors: 程秀云
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-05-29
Filing date: 1992-05-29
Publication date: 1993-09-15
Anticipated expiration: 2002-05-29

Abstract

The utility model discloses a high-performance anti-theft lock, and the high-performance anti-theft lock also comprises the usual lock components: a lock body, a lock core, a lock beam, a pin tumbler, and a spring. The high-performance anti-theft lock is characterized in that the length of the pin tumbler in the pin tumbler hole in the lock body is enlarged; when the key is inserted in the key nest, the pin tumbler in the pin tumbler hole in the lock core is pressed in the pin tumbler hole in the lock body fully; at the same time the cross section shape of the key nest is changed to a curve shape; the key can not be moved laterally in the key nest, and the anti-theft performance of the lock is enhanced. The lock production manufacturer does not need to change the tool set, and the production of the high-performance anti-theft lock can be carried out immediately. The utility model has the advantages of less investment, and obvious effect.

Description

High-performance anti-theft lock

The utility model high-performance theftproof lock is to a kind of improvement of existing iron lock, is applicable on various padlocks and the built-in lock.

The iron lock kind of selling on the current market is more, but its structural principle is much the same, mainly by lock body, lock core and other connect mechanisms are formed, the major defect of this lock is: theftproof performance is relatively poor, easily be opened, dangerous, this causes owing to project organization is unreasonable: the pellet shot from a slingshot hole on the lock body of existing iron lock is darker, the stage clip of the inside dress is longer, pellet shot from a slingshot is shorter, and the key nest mouth on lock core (promptly inserting the cross section of keyhole) almost is linear, width is also bigger, can insert the thick foil of 0.3-1.5mm, if the sheet metal of 1mm thickness is made the number of teeth, tooth is long, tooth pitch, the hole count in the pellet shot from a slingshot hole on the facewidth and lock core, hole depth, pitch-row, when the aperture duplicate key is inserted in the key nest, the tooth of key will be aimed at the pellet shot from a slingshot hole of lock core, key moves along pellet shot from a slingshot hole direction again, the pellet shot from a slingshot in the pellet shot from a slingshot hole on lock core all will be advanced in the pellet shot from a slingshot hole of lock body, and lock core is rotated, open the iron lock, cause a key to open the serious problems of many locks.

The purpose of this utility model is that pellet shot from a slingshot is longer on a kind of lock body of design, and key nest cross section is the curved high-performance theftproof lock that can not be opened by other key.

The utility model high-performance theftproof lock, form by lock body, lock core, lock bridge and moving part, characteristics are the length of pellet shot from a slingshot on the lock body that extended, make that pellet shot from a slingshot length is the 3/5--4/5 of pellet shot from a slingshot hole length on the lock body on the lock body, changed the shape of key nest cross section simultaneously, make curvedly, as make S shape, the key that matches with the key nest can't laterally be moved in the key nest.

The utility model and existing iron lock relatively have following advantage:

1, because the length of the pellet shot from a slingshot on the lock body of having extended and changed the shape of key nest cross section makes the performance of lock improve a lot.

2, design scheme is simple and practical, and manufacturer does not use a lot of equipment frocks and can realize, and is easy to utilize.

Fig. 1 is the structural representation of high-performance theftproof lock.

Pellet shot from a slingshot 7, key nest 8 on pellet shot from a slingshot 6, lock core are arranged among the figure on pellet shot from a slingshot hole 4 on lock bridge 1, lock body 2, lock core 3, the lock body, stage clip 5, the lock body.

Fig. 2, Fig. 3 are key nest shape of cross section schematic diagrames

According to the utility model design scheme, existing theftproof lock is improved, promptly utilize existing lock body and relevant parts, changed new lock core, and the length of pellet shot from a slingshot on the lock body that extended, produce each one of built-in lock padlock, through practical to the doorstep the own home, and do unlatching with multiple key and test, all do not open, have good theftproof performance.

Claims

A kind of high-performance theftproof lock is made up of lock body 2, lock core 3, lock bridge 1 and moving part, it is characterized in that:

(a), the length of pellet shot from a slingshot 6 on the lock body 2 that extended, make pellet shot from a slingshot 6 length on the lock body 2 be on the lock body 2 pellet shot from a slingshot hole 4 length 3/5～4/5;

(b), the shape of key nest cross section, make curvedly, the key that cooperates with key nest 8 can't laterally be moved in the key nest.