CN2232961Y

CN2232961Y - Anti-theft door

Info

Publication number: CN2232961Y
Application number: CN 95230952
Authority: CN
Inventors: 宋文连
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-04-25
Filing date: 1995-04-25
Publication date: 1996-08-14
Anticipated expiration: 2005-04-25

Abstract

The utility model relates to an anti-prizing door which comprises a doorframe, a door plate, a side lock, a middle lock and a hinge. The utility model is characterized in that the door lock of the utility model is sealed in the door plate, and the side lock is provided with two parallel lock tongues. A draw rod of the middle lock is connected with a locking head by an inserting hook, and the locking head is supported by a spring sheet. The hinge is in a sealed welding structure. Therefore, the utility model has the advantages of firmness and strong anti-prizing ability. Even the door lock is destroyed or shot off, the door still can not be opened.

Description

Anti-forcing open the door

The utility model is a kind of safety door of anti-theft pick-proof.

The security door of selling on the market is of a great variety, but basic structure is identical, all have limit lock, middle lock, in lock lower link and folding etc., can reach or 8 lockings at 6.But their limit lock dead bolt has only place locking; Middle lock as destroyed, the locking head of then going up lower link all can come off; Folding is the outside that is screwed at door, is disassembled easily, and the pick-proof ability is strong inadequately in a word.

Task of the present utility model is the weakness at prior art, proposes a kind of improved anti-design of forcing open the door, and it can reach the purpose that improves the pick-proof ability.

The utility model adopts following scheme: door-plate, doorframe, limit lock, middle lock and folding before and after it comprises, main points are that middle lock and limit lock all are enclosed between the door-plate of front and back; The limit lock has two dead bolts; Middle lock pull bar top connects locking head with inserting hook, and there is bumper bar the pull bar back, and its upper end has insurance card, its side to have extension spring to hold bumper bar; There is reed the locking head lower end.

During being fixed on, locks on the guard shield by bumper bar.

The flap sealing is weldingly fixed on door-plate and the doorframe inner frame.

The utility model has the advantages that: during operate as normal, the common door lock of Bian Suoyu is the same, the dead bolt telescopic locking, but because it has two dead bolts arranged side by side, can make locking more effective from two lockings; Because the limit lock is enclosed in the door-plate, make it to be difficult for destroyed again; The last lower link of middle lock is the same with existing security door structure, but middle lock pull bar upper end connects locking head with inserting hook, locks in both having made and is struck off, when pull bar becomes flexible, because the effect of extension spring makes inserting hook throw off locking head, locking head is held also unlikely coming off by reed, and the locking point of door upper end remains valid.Be enclosed in door-plate and the doorframe owing to flap in addition, and be that welding is fixing, so safer more reliable.

Details of the present utility model is provided by following examples and accompanying drawing thereof:

Fig. 1 is a general illustration of the present utility model.

Fig. 2 is middle lock and pull bar general illustration thereof.

Fig. 3 is the lateral view of Fig. 2.

Fig. 4 is A among Fig. 3-A view.

Fig. 5 is B among Fig. 3-B view.

Fig. 6 is the door butt structural representation.

Fig. 7 is a limit lock double lock tongue schematic diagram.

With reference to the accompanying drawings, the utility model comprises door-plate 1, folding 17, doorframe 2, limit lock 3 and middle lock 6, door reinforcing rib 15 etc.Its limit lock 3 is installed on the fixed mount 5, has connected 4, two dead bolts of double lock tongue at existing limit lock dead bolt 14 front ends with welding or screw and has inserted side by side in the doorframe 2 corresponding lockholes.In lock 6 be contained on the lock fixed mount 8, in it and the existing security door phase-locked with, also can drive lower link.There is insurance support 7 lock 6 fronts in this, safeguard 18 is stamped in the back, be connected one by screw 20 with insurance support 7, bumper bar 10 usefulness screws 19 are fixed on the safeguard 18, its side has the extension spring 16 that hangs on the reinforcing rib 15 that it is pulled to a side, and bumper bar 10 tops have insurance card 21 to embrace pull bar 9.There is inserting hook 13 pull bar 9 upper ends by middle lock 6 controls, it inserts the side of going up locking head 12, under the normal condition, last locking head 12 moves up and down with pull bar 9 under the drive of inserting hook 13, insurance card 21 plays and is pull bar 9 guide effects, in the middle of lock 6 destroyed, when bumper bar 10 will come off with pull bar 9, extension spring 16 is worked bumper bar 10 is pulled to the right side, insurance card 21 drives pull bar 9 and also is partial to the right side, then inserting hook 13 is extracted out from locking head 12, the reed 11 of last locking head 12 belows is fixed on the door-plate inner frame, holds locking head 12 this moment, make it not come off, continue locking.The flap of folding 17 are contained in the inside of doorframe 2 and door 1, and welding is fixing.

The utility model sample has carried out quality examination under public security department's supervision, prove that it is solid and reliable, even the door lock place is destroyed, lock is destroyed, and still can not make a unlatching.

Claims

1, a kind of anti-forcing open the door, door-plate, doorframe, limit lock, middle lock and folding before and after it comprises is characterized in that: middle lock and limit lock all are enclosed between the door-plate of front and back; The limit lock has two dead bolts; Middle lock pull bar top connects locking head with inserting hook, and there is bumper bar the pull bar back, and there is insurance card on its top, and its side has extension spring to hold bumper bar; There is shell fragment the locking head lower end.

2, anti-forcing open the door according to claim 1 is characterized in that: lock on the guard shield during bumper bar is fixed on.

3, anti-forcing open the door according to claim 1, it is characterized in that: the flap sealing is weldingly fixed on door-plate and the doorframe inner frame.