CN2342048Y - Concentric anti-theft lock - Google Patents

Abstract

The utility model relates to a concentric anti-theft lock, which is mainly composed of lock body, a lock core arranged in the lock body, a lock bolt, a rocker arm, the socket of the lock bolt, a marble connected with the lock core and a pressure spring, wherein, a key jack is arranged on the lock core; the key is inserted into the key jack; the lock core is rotated to drive the lock bolt connected with the lock core, and thus the lock bolt goes into and out of the socket of the lock bolt, realizing the opening and the closing of the lock. The lock bolt in the structure is hung up, and thus the utility model has small friction resistance and flexile actions. The utility model has simple technics and structure, low cost, convenient production, high theftproof performance, and convenient and reliable use.

Description

A kind of concentric type theftproof lock

The utility model relates to a kind of concentric type theftproof lock.

Lock is the requirement in people's daily life, is widely used in the every field in lives such as house owed by a citizen, office, school, industry and commerce, traffic, the work.At present the lock of using uses spring to add lever principle mostly, make dead bolt under external force with the lock body interlock, to reach the purpose of locking.The shortcoming of this form of structure is: 1, frictional force is big, with the passing of time gets rusty, and is difficult to open and close, and uses inconvenience.2, big and easily pried open by force direction improper (as the hanging door lock of basket shape) because of the space between lock body self slit big (as annular bicycle lock) or dead bolt and lock body, theftproof performance is poor.3, cost height, complex process, production inconvenience.

The purpose of this utility model is to provide that a kind of structure and technology are all comparatively simple, cost is low, theftproof performance good, easy to use, reliable antitheft sylinder.

The purpose of this utility model is achieved in that it comprises lock body (1), dead bolt (2), rocking arm (3), lock core (4), pellet shot from a slingshot (5), stage clip (6), dead bolt socket (7) and key hole (8).It is characterized in that dead bolt (2) and rocking arm (3) are one, and directly be connected with lock core (4) by rocking arm (3), key hole (8) is arranged on lock core (4), dead bolt socket (7) is arranged on lock body (1), key can make dead bolt discrepancy socket, realizes opening and closing of lock.

The technological progress that the utility model is obtained: 1, dead bolt and rocking arm are one, because the friction of dead bolt and lock body has been avoided in the supporting role of rocking arm basically; 2, directly drive rocking arm by lock core and make it to drive dead bolt and rotate, lock is opened and closed, avoided common lock to cause the inconvenient shortcoming that is difficult to open and close of telescopic spring because of getting rusty fully with lock core is concentric.Simultaneously, the disadvantage of also having avoided common lock to break down easily because of parts depreciation has prolonged application life; 3, simplify the structure and production technology, reduced cost, strengthened theftproof performance, and easy to use, reliable.

Be that embodiment further describes the utility model below with the accompanying drawing:

Fig. 1 is used for the structural representation sectional drawing of hanging lock for the utility model principle.

Be provided with the rocking arm (3) and the dead bolt (2) that are connected with lock core (4) in lock body (1), dead bolt (2) is the curved circular cylinder, also can be made into arc flat column and other as shapes such as triangle or polygon prisms, and its circular arc and lock core are concentric circles; The top of lock core (4) or a side are provided with pellet shot from a slingshot (5) and stage clip (6), after key inserts key hole (8), and key, rocking arm (3) and dead bolt (2) rotate thereupon, and dead bolt (2) withdraws from dead bolt socket (7), unblanks, as counter-rotating again, i.e. locking.

The utility model can have multiple embodiments, changes the lock body form, can be designed to the lock of various different purposes, as fixing door lock, and bicycle lock etc.

Claims (3)

1, a kind of concentric type theftproof lock is characterized in that dead bolt passes through rocking arm and directly is connected with lock core, and rotate with lock core.

2, concentric type theftproof lock according to claim 1 is characterized in that said dead bolt is an arcuation, and its radian becomes concentric circles with lock core.

3,, it is characterized in that rocking arm and dead bolt are one, directly connect lock core, and are directly driven by lock core according to claim 1,2 described concentric type theftproof locks.

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