CN2528849Y

CN2528849Y - Anti-theft lock with device for preventing burglar open door and escaping

Info

Publication number: CN2528849Y
Application number: CN 02223682
Authority: CN
Inventors: 陆铁山
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-03-25
Filing date: 2002-03-25
Publication date: 2003-01-01
Anticipated expiration: 2012-03-25

Abstract

The utility model relates to an anti-theft lock, in particular to an anti-theft lock with device for preventing burglar from opening door and escaping. A master with a keyhole is arranged in an indoor rotary handle, and the master is provided with a back locking clip; meanwhile, the rotary handle is provided with a flange. When the back locking clip rotates along the master to some position under back locking rotation of the key, the back locking clip blocks the handle flange and stops rotating of the handle, and an anti-theft door is back locked, and cannot be opened unless a key is utilized to rotate the master and drive the back locking clip to leave the block position of the handle flange. The utility model has the advantages of effectively preventing thieves from easily opening door and escaping.

Description

A kind of indoor theftproof lock of locking

Affiliated technical field

The utility model relates to a kind of theftproof lock, especially the theftproof lock that can lock at indoor key.

Background technology

At present, known theftproof lock is done indoor anti-lock device with a latch, presses at closing time indoor that latch is outdoor then can not to turn the key in the lock.As long as but drawing back latch indoor without key, rotary handle just can open the door.Like this, the molecule back pullout (BPO) in the inlet chambers such as window that can not avoid theft is escaped.This is its shortcoming.

Summary of the invention

For overcome existing theftproof lock in the indoor deficiency that can open the door without key, just that the utility model provides is a kind of at the indoor indoor theftproof lock of locking that also can need key to open the door.

The technical scheme that its technical problem that solves the utility model adopts is: pack in indoor rotary handle and be with the lock core of keyhole, be equipped with on the lock core and lock card, a flange (lock pin) is arranged on rotary handle simultaneously, a resistance shelves handle flange when locking card Sui Suoxin and under the key back locking turn, forward a certain position to, handle can not be rotated, and security door is in the state of locking.Have only to drive and lock card and leave the handle flange and hinder gear and put just and can open the door with key rotation lock core.

The beneficial effects of the utility model are, the molecule that can avoid theft the effectively escape of opening the door easily.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is an overall structure schematic diagram of the present utility model.

Fig. 2 is that indoor back locking structure of the present utility model side section is looked schematic diagram (Fig. 1 dissects left view along the center line of piece number 2).

Fig. 3 is card and the handle lock latch structure schematic diagram locked of the present utility model.

Fig. 4 is a rolling disc of the present utility model front structural representation.

Fig. 5 is a handle arrangement schematic diagram of the present utility model.

Fig. 6 is the back each several part position view that opens the door of the present utility model.

1. rolling discs among the figure, 2. lock core, 3. handle, the 4. flange on the handle is 5. dialled wooden fork on the rolling disc, 6. locks card, 7. locking bolt, 8. connecting rod, 9. locking bolt starting handle, 10. locking bolt control card, 11. lock core retainer rings, 12. torsion springs, 13. keyholes, 14. outdoor sections.

The specific embodiment

Referring to Fig. 1, Fig. 2, Fig. 4: the utility model has locking bolt (7), connecting rod (8), rolling disc (1), turning handle (3), lock core (2), lock core retainer ring (11), lock card (6) forms, rolling disc (1) is contained on the lock core, one side is connected with connecting rod (8), and opposite side is fixed with dials wooden fork (5); Have flange (4) on the indoor rotary handle (3), flange (4) is stuck in dialling of rolling disc (1) and makes handle (3) can pass through flange (4) in the wooden fork (5) to drive rolling disc (1) and rotate, and drives locking bolt (7) the switch door that stretches by connecting rod (8) when rolling disc (1) rotates.

Referring to Fig. 3: be equipped with one on the lock core (2) and lock card (6), lock card (6) but Sui Suoxin (2) rotates under key turns, when locking flange (4) left side (also can be designed to the right side) that card is parked in handle (3), resistance shelves handles (3) can not inhour rotate (also can be designed to and can not clockwise rotate), rolling disc this moment (1) can not rotate, can not open the door with rotary handle (3), have only with key and drive lock core (2) rotation, make when locking card (6) and going to the right side of handle (3) flange (4), the without hindrance shelves of flange (4), just can drive the rotation of rolling disc (1) inhour, drive locking bolt (7) by connecting rod (8) and open the door.

Claims

1. indoor theftproof lock of locking, locking bolt (7), connecting rod (8), rolling disc (1), indoor turning handle (3), lock core (2), lock core retainer ring (11) are arranged, lock card (6) and outdoor section (14) composition, it is characterized in that: flange (4) is arranged on the indoor rotary handle (3), the wooden fork (5) of dialling is arranged on the rolling disc (1), flange (4) is stuck in to be dialled in the wooden fork (5), rolling disc (1) is contained on the lock core, is connected with locking bolt (7) by connecting rod (8); Be equipped with on the lock core (2) and lock card (6).