CN2316418Y - Concealed beam lock - Google Patents

Abstract

The utility model discloses a concealed beam lock. A lock core and a lock beam are arranged in a lock body; arcuate gears can be respectively fixed on the back part of the lock core and the lower part of the lock beam; two arcuate gears are mutually engaged. An opening for a lock nose is arranged on the upper end of the lock body; the lock beam can be concealed in the lock body and the lock nose; the lock can not be opened by a theft; the security can be increased. The lock has simple structure and convenient operation.

Description

Built-in beam lock

The utility model relates to the door lock that the lock nose is housed on a kind of door.

At present, be used to have the door lock of lock nose, adopt the lock bridge major part to be exposed to the outer door lock of lock body more.The easy sledge of this door lock, easily saw, security performance are relatively poor.

The purpose of this utility model is to provide a kind of lock bridge major part to hide door lock in lock body.Lock core and lock bridge are housed in lock body, and the rear portion of lock core and the bottom of lock bridge are fixed an arc gear wheel respectively, and two arc gear wheels are meshing with each other.There is a lock nose opening lock body upper end, can be inserted in the lock nose.Lock bridge is hidden in lock body and lock nose, is difficult for being sawed by sledge, has improved its safety greatly.

The purpose of this utility model is achieved in that a lock core groove is arranged at the bottom in rear locking, lock core is housed and is fixed on the arc gear wheel at lock core rear portion; The rear locking internal upper part has an arc lock bridge groove, the arc lock bridge is housed and is fixed on the arc gear wheel of lock bridge bottom, and two arc gear wheels are meshing with each other.Before lock core groove and arc lock bridge groove are also arranged in the lock body, respectively with rear locking in lock core groove corresponding with arc lock bridge groove.Preceding lock body and rear locking are fixed together, and all there is a lock nose opening preceding lock body and rear locking upper end along the lock core direction.Several pellets shot from a slingshot and pellet shot from a slingshot spring hole are arranged in preceding lock body lower end, and corresponding with the pellet shot from a slingshot hole on the lock core, load onto pellet shot from a slingshot and pellet shot from a slingshot spring hole, then with its sealing.

The utility model is compared with the door lock of existing beam with lock following advantage: the lock bridge of this lock is with after lock nose or lock lug cooperate, lock bridge by lock body with lock nose and all surround, do not allow to be sawed by sledge, improved safety greatly, applied range, simple in structure, easy to use.

The utility model will be described further in conjunction with the accompanying drawings:

Fig. 1 is a front view of the present utility model;

Fig. 2 is a left view of the present utility model;

Fig. 3 is that A-A of the present utility model is to sectional view;

Fig. 4 is that B-B of the present utility model is to sectional view.

A lock core groove is arranged at the bottom in rear locking 3, lock core 2 is housed and is fixed on the arc gear wheel 5 at lock core 2 rear portions, and an arc lock bridge groove is arranged at its top, arc lock bridge 1 is housed and is fixed on the arc gear wheel 4 of lock bridge 1 bottom.Arc gear wheel 4 and 5 is meshing with each other.In the preceding lock body 6 lock core groove and arc lock bridge groove are arranged also, corresponding with lock core groove and arc lock bridge groove in the rear locking 3 respectively.Then preceding lock body 6 and rear locking 3 usefulness rivets are fixed or welded together.The upper end of preceding lock body 6 and rear locking 3 has a lock nose opening respectively along the lock core direction.In preceding lock body 6 lower ends some pellets shot from a slingshot and pellet shot from a slingshot spring hole are arranged, and corresponding, load onto pellet shot from a slingshot and pellet shot from a slingshot spring and its sealing with the pellet shot from a slingshot hole on the lock core 2.

During use, the lock nose opening of lock body upper end is inserted in the lock nose, utilize key clockwise direction rotary locking cylinder 2, be fixed on the arc gear wheel 5 on the lock core 2, drive be fixed on the lock bridge 1 arc gear wheel 4 with lock bridge 1 one ends pass the lock nose enter in the opposite side lock body, door lock is lived.With key counter clockwise direction rotary locking cylinder 2, lock bridge 1 one ends return in the former side chain body, and lock is opened.

Claims (1)

1, a kind of Built-in beam lock, it comprises lock body, lock core and lock bridge, it is characterized in that: there is a lock core groove bottom, lock core is housed and is fixed on the arc gear wheel at lock core rear portion in rear locking, the rear locking internal upper part has an arc lock bridge groove, the arc lock bridge is housed and is fixed on the arc gear wheel of lock bridge bottom, two arc gear wheels are meshing with each other; Before lock core groove and arc lock bridge groove are also arranged in the lock body, respectively with rear locking in lock core groove corresponding with arc lock bridge groove, preceding lock body and rear locking are fixed together; All there is a lock nose opening preceding lock body and rear locking upper end along the lock core direction; Several pellets shot from a slingshot and pellet shot from a slingshot spring hole are arranged in preceding lock body lower end, and corresponding with the pellet shot from a slingshot hole on the lock core, load onto pellet shot from a slingshot and pellet shot from a slingshot spring, then with its sealing.

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