CN2188119Y

CN2188119Y - Anti-picking door lock

Info

Publication number: CN2188119Y
Application number: CN 94209551
Authority: CN
Inventors: 汤宏超
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-04-22
Filing date: 1994-04-22
Publication date: 1995-01-25
Anticipated expiration: 2004-04-22

Abstract

The utility model relates to a pick-proof door lock. The lock comprises a lock shell 3 and a lock cylinder 1. The lower portion of the lock case 3 has a door catch hole 13 perpendicular to the cylinder hole 10. The lock core marble 4, the lock shell marble 15 and the marble pressure spring 5 are sequentially placed into the lock core marble hole 8 and the lock shell marble hole 14 and are sealed by a marble hole sealing cover 6. The lock pin holes 2 on two sides of the upper part of the lock shell 3 are respectively provided with a lock pin 16. When the door lock is used, a key is firstly inserted into the key hole 7, the lock cylinder bounces, two door catches on the door and the door frame are inserted into the door catch holes of the lock, the lock cylinder is pressed down, the lower end of the lock cylinder is inserted into the circular hole of the door catch holes, and then the key is pulled out of the lock, so that the door can be locked. The lock has the advantages of prying resistance, simple structure and low cost.

Description

Antipicking door lock

The utility model relates to lock class articles for use, specifically is a kind of pick-proof door lock.

At present, the lock a door bright lock of usefulness of people all is that lock ring is inserted in the circular hole of knocker, presses lock ring, and locking bolt in the lock body is snapped in the breach on the lock ring, and lock is locked.After this lock locked, the knocker on lock ring and the door was all exposed outside, so lock ring and knocker are all nipped off with the reinforcing bar pincers easily, sawed-off with saw, the pellet shot from a slingshot in perhaps will locking takes out lock is opened.This lock mainly snaps in the breach of lock ring by locking bolt, and the breach of lock ring can not be done too deeply, in case the fracture herein of lock ring edge, therefore this lock is easy to be broken.In addition, this door latch structure complexity, cost is higher.

The purpose of this utility model be door at current use with bright the problems referred to above that are latched in, a kind of lock ring that do not have is provided, lock the back all parts all be enclosed within the lock housing, and the knocker on the door also is enclosed within the interior pick-proof door lock of lock housing.

The utility model is achieved in that the pick-proof door lock comprises lock housing, lock core, lock housing pellet shot from a slingshot, lock core marble, marble pressuring spring.It also comprises lock core stage clip, lock pin.Lock core is cylinder, and the lock core middle part longitudinally has keyhole.A flange body is arranged at the lock core top.The lock core stage clip is equipped with in the flange body bottom surface.The lock core both sides have the lock core marble hole of lateral arrangement.Lock housing longitudinally has a lock core hole, and lock core hole top is the lock core compression spring hole.A knocker hole vertical with lock core hole is arranged at the lock housing bottom.The lock housing pellet shot from a slingshot hole that the left and right sides, lock housing middle part has lateral arrangement.A lockpin hole is each side arranged at lock housing top.Lock core is installed on the lock core stage clip of lock housing.A lock pin respectively is housed in the lockpin hole of both sides, lock housing top.Lock core marble, lock housing pellet shot from a slingshot, marble pressuring spring are packed in lock core marble hole, the lock housing pellet shot from a slingshot hole successively, and are sealed by the pellet shot from a slingshot hole capping.

During use, key inserts from the keyhole of lock core, promotes lock core marble and outwards slides along lock core marble hole, and lock core marble promotes the lock housing pellet shot from a slingshot and move the compression marble spring outside lock housing pellet shot from a slingshot hole.When the contact surface of the contact surface of lock core marble, lock housing pellet shot from a slingshot and lock core, lock housing was in same position, lock core moved under the effect of lock core stage clip, withdraws from the knocker hole.Because lock pin is spacing, lock core retreats to certain position and promptly is stuck, the unlikely lock housing that all withdraws from.When locking a door, at first knocker is inserted the knocker hole, press lock core,, extract key when lock core enters in the hole of knocker.Lock core marble, lock housing pellet shot from a slingshot advance to keyhole under the marble pressuring spring effect, cause the lock housing pellet shot from a slingshot to be stuck between lock housing and the lock core, will be sealed.

The utility model has the advantages that: because this lock is without lock ring, all parts of locking after sealed all within firm lock housing, do not exist by destroying the parts of lock own to reach the possible of picking lock.Be horizontal laying state after this lock is sealed, even the pellet shot from a slingshot hole in the lock housing is opened, the pellet shot from a slingshot that is arranged in row's pellet shot from a slingshot hole above the lock housing can't take out, and does not also reach the purpose of picking lock.In addition, when using this lock to lock a door, the knocker on the door all inserts in the knocker hole of lock housing, therefore, also can't force open the door by the method for destroying knocker.Advantages such as the utility model also has simple in structure, and is easy to use.The utility model has saved lock ring, locking bolt, does not have exposed part, need not electroplate, and compares with the cylinder lock of same size, and cost reduces by 30 percent.

Fig. 1 is present door lock and user mode figure thereof;

Fig. 2 looks partial sectional view for master of the present utility model;

Fig. 3 is the side view cutaway drawing of Fig. 2;

Fig. 4 is the vertical view of Fig. 2;

Fig. 5 is the lock core front view;

Fig. 6 is the lateral view of Fig. 5;

Fig. 7 is the vertical view of Fig. 5;

Fig. 8 looks partial sectional view for the master of lock housing;

Fig. 9 is the side view cutaway drawing of Fig. 8;

Figure 10 is the vertical view of Fig. 8;

Figure 11 is a user mode elevation of the present utility model;

Figure 12 is the vertical view of Figure 11.

The utility model is described in further detail below in conjunction with embodiment shown in the drawings:

The pick-proof door lock comprises lock housing 3, lock housing pellet shot from a slingshot 15, lock core marble 4, marble pressuring spring 5.In addition, it also comprises lock core stage clip 11, lock pin 16.Lock core 1 is cylinder, and lock core 1 middle part longitudinally has keyhole 7.A flange body 12 is arranged at lock core 1 top.The lock core stage clip 11 that is enclosed within on the lock core is equipped with in flange body 12 bottom surfaces.Lock core 1 both sides have the lock core marble hole 8 of lateral arrangement.Lock housing 3 longitudinally has a lock core hole 10.Lock core hole 10 tops are lock core compression spring hole 9.A knocker hole 13 vertical with lock core hole is arranged at lock housing 3 bottoms.The left and right sides, lock housing 3 middle part has the lock housing pellet shot from a slingshot hole 14 of lateral arrangement.A lockpin hole 2 is each side arranged at lock housing 3 tops.Lock core 1 is installed in the lock core hole 10 of lock housing 3.In the lockpin hole 2 of both sides, lock housing 3 top a lock pin 16 is housed respectively.Lock core marble 4, lock housing pellet shot from a slingshot 15, marble pressuring spring 5 are packed in lock core marble hole 8, the lock housing pellet shot from a slingshot hole 14 successively, and are sealed by pellet shot from a slingshot hole capping 6.

Claims

1, a kind of pick-proof door lock comprises lock housing (3), lock housing pellet shot from a slingshot (15), lock core marble (4), marble pressuring spring (5), it is characterized in that it also comprises lock core stage clip (11), lock pin (16); Lock core (1) is cylinder, and lock core (1) middle part longitudinally has keyhole (7); A flange body (12) is arranged at lock core (1) top; Lock core stage clip (11) is equipped with in flange body (12) bottom surface; Lock core (1) both sides have the lock core marble hole (8) of lateral arrangement; Lock housing (3) longitudinally has a lock core hole (10); Lock core hole (10) top is lock core compression spring hole (9); A knocker hole (13) vertical with lock core hole (10) is arranged at lock housing (3) bottom; The lock housing pellet shot from a slingshot hole (14) that the left and right sides, lock housing (3) middle part has lateral arrangement; A lockpin hole (2) is each side arranged at lock housing (3) top; Lock core (1) is installed in the lock core hole (10) of lock housing (3); Be with a lock core stage clip (11) on the lock core (1); In the lockpin hole (2) of lock housing (3) both sides, top a lock pin (16) is housed respectively; Lock core (1) both sides also respectively have one lock pin groove (17) lock core marble (4), lock housing pellet shot from a slingshot (15), marble pressuring spring (5) to pack into successively in lock core marble hole (8), the lock housing pellet shot from a slingshot hole (14), and are sealed by pellet shot from a slingshot hole capping (6).