CN200952291Y

CN200952291Y - Antitheft padlock

Info

Publication number: CN200952291Y
Application number: CN 200620035831
Authority: CN
Inventors: 喻谦鹏; 谌建平
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-10-09
Filing date: 2006-10-09
Publication date: 2007-09-26
Anticipated expiration: 2016-10-09

Abstract

The utility model relates to a thief resistant padlock, which comprises a lock body, a buckle device, and an opening device, which is characterized in that: the top end of a key slot on a plug movably connected with the lock body is equipped with a thief resistant plate with a close key slot in the opening device. Except the plug, the opening device also comprises more than one side springs fixedly connected with the lock body, and a pin arranged between the side springs and the pin hole on the plug, the pin passes the pin hole under the elasticity action of the side spring and protrudes into the key slot in the plug, and the length is matched with the depth of a concave hole of the key. The buckle device comprises a lock rod movably connected with the lock body, a main spring fixed on the lock body, and a firing pin fixedly connected with the main spring. The top end of the key slot is equipped with the thief resistant plate and the pin protrudes into the key slot, which is the double insurance, performing the function of preventing the lock open tools except the key from entering into the key slot, and realizing the purpose of thief resistance. The utility model has simple structure, and the materials are easy to be obtained, tending to be promoted.

Description

A kind of theft proof padlock

Technical field

The utility model relates to a kind of lockset, particularly a kind of theft proof padlock.

Background technology

In the prior art, theft proof padlock is of common occurrence, and its structure includes lock body, locking bar and lock core.But after the lock core of this padlock and the pellet shot from a slingshot assembling, the whole process of its locking bar is same cross section, because the cross section of locking bar is identical, the cross section of its lockhole also is identical, simultaneously, close state at locking, pellet shot from a slingshot is positioned at the pellet shot from a slingshot hole and does not protrude into key, therefore, the striker at whole key and lock core top forms the passage that is communicated with, and steel wire that common people can be by special tool or buckle or similar item are pushed the fastening of striker and locking bar aside by key, open lockset easily and commit theft, to such an extent as to, bring hidden danger to social stability as for being issued to the purpose of committing theft in the condition of not destroying the lockset profile.

Summary of the invention

The purpose of this utility model is to overcome the above-mentioned weak point of traditional theft proof padlock, suitably improves on the basis of existing technology, provides a kind of structure science more, the theft proof padlock that theftproof is strong.

The utility model is to reach its purpose by following technical solution:

A kind of theft proof padlock comprises lock body, buckling device and opening device, it is characterized in that: in opening device, the key top on the lock core that flexibly connects with lock body is set with the theft protection plate of sealing key.

Described opening device is except that lock core, also comprise be fixedly connected in the lock body one with the upper side spring, be arranged at the pellet shot from a slingshot between the pellet shot from a slingshot hole on side spring and the lock core, in nature, pellet shot from a slingshot protrudes in the key in the lock core by the pellet shot from a slingshot hole under the elastic force effect of side spring, and the length of pellet shot from a slingshot is suitable with the shrinkage pool degree of depth on the key.

Described buckling device comprises the locking bar that flexibly connects with lock body, the striker that is fixed in the main body spring on the lock body and fixedlys connected with the main body spring.

The smooth no dentation in the key two sides that match with this theft proof padlock, the front is provided with a shrinkage pool that the above degree of depth is different, and is corresponding with the pellet shot from a slingshot of theft proof padlock

Theft protection plate is made of metal material.

Advantage of the present utility model is to have blocked the passage of key and buckling device owing to be provided with theft protection plate on the key top, has reached the purpose that can not use steel wire or similar tool directly to push striker aside by key; Simultaneously, compare with existing common padlock, pellet shot from a slingshot protrudes in the key, also plays the effect that the unlocking tool of prevention except that key enters key, by the special setting of this pellet shot from a slingshot and the double insurance of theft protection plate, reaches antitheft purpose.

Description of drawings

Fig. 1 is the structural representation of theft proof padlock

Fig. 2 is the annexation schematic diagram of key and theft protection plate

The specific embodiment

Embodiment 1

A kind of theft proof padlock comprises lock body 1, buckling device and opening device, and in opening device, key 4 tops on the lock core 2 that flexibly connects with lock body 1 are set with the metal anti-theft sheet 3 of sealing key.Described opening device is except that lock core 2, also comprise be fixedly connected in the lock body 1 one with upper side spring 9, be arranged at the pellet shot from a slingshot 7 between the pellet shot from a slingshot hole on side spring 9 and the lock core 2, in nature, pellet shot from a slingshot 7 is under the elastic force effect of side spring 9, protrude in the key 4 in the lock core 2 by the pellet shot from a slingshot hole, suitable with shrinkage pool on the key.Described buckling device comprises the locking bar 5 that flexibly connects with lock body 1, the striker 6 that is fixed in the main body spring 8 on the lock body 1 and fixedlys connected with main body spring 8.Key enters after the key, and pellet shot from a slingshot 7 leaves lock body fully under the elastic force effect of side spring 7, enter in the lock core, and screw key, striker 6 leaves locking bar under the thrust of lock core 2 top juts, thereby reaches the purpose of unblanking.

Embodiment 2

Metal anti-theft sheet 3 can be made as synthetic ebonite etc. with rigid non-metallic material, and the laminated structure also short strip shape thing made of available metal or rigid non-metallic material is stopped up key 4 and replaced sheet metals to reach sealing process.

Claims

1, a kind of theft proof padlock comprises lock body (1), buckling device and opening device, it is characterized in that: in opening device, the key top on the lock core (2) that flexibly connects with lock body (1) is set with the theft protection plate (3) of sealing key (4).

2, a kind of theft proof padlock according to claim 1, it is characterized in that: described opening device is except that lock core (2), also comprise be fixedly connected in the lock body (1) one with upper side spring (9), be arranged at the pellet shot from a slingshot (7) between the pellet shot from a slingshot hole on side spring (9) and the lock core (2), pellet shot from a slingshot protrudes in the key (4) in the lock core by the pellet shot from a slingshot hole under the elastic force effect of side spring (9), and the length of pellet shot from a slingshot (7) and the supporting shrinkage pool degree of depth on the key are suitable.

3, a kind of theft proof padlock according to claim 1 is characterized in that: described buckling device comprises the locking bar (5) that flexibly connects with lock body (2), the striker (6) that is fixed in the main body spring (8) on the lock body (1) and fixedlys connected with main body spring (8).

4, a kind of theft proof padlock according to claim 2 is characterized in that: the smooth no dentation in the key two sides that match with this theft proof padlock, the front is provided with a shrinkage pool that the above degree of depth is different, and is corresponding with the pellet shot from a slingshot of theft proof padlock.