CN2130910Y - Anti-theft door - Google Patents

Abstract

The utility model belongs to an anti-theft door; a steel door leaf thereof which can be opened outwards and a steel doorframe are arranged on the outer sides of an original house door which can be opened inwards and the original doorframe; the steel door on the outer side can protect the inner door; the inner door in the locking status can push a bolt; the bolt can make that the outer door can not be opened; the bolt can relieve the control of the outer door after the inner door is opened through a key. Four locking points exist between the steel outer door and the steel doorframe; the performance of preventing prying is conspicuous. The utility model has the anti-theft function and also has the function of separating fly of a screen door, when steel fencing are arranged on the upper part and the lower part of the steel outer door, and the window screen is covered.

Description

Anti-theft door

The utility model relates to a kind of security door, belongs to anti-theft safety device.

Just be used for dwelling house and finance, confidential etc. locating in recent years extensively, in a large number at China's security door, though the kind of security door is many at present, according to people's demand, its structure, performance are still constantly improved.The utility model is at the designed CN882036025 security door of one of the applicant, and improvement designs on its " interior gate control external door is opened " principle basis.Through consulting patent documentation, there is not similar record of the present utility model.

The purpose of this utility model is: a kind of security door of pick-proof better performances is provided, gives a sense of security.

The utility model is achieved in that to the steel door leaf of external-open and steel door frame and is installed in the former door and the former doorframe outside of inwardly opening, steel door in the outside plays the wooden former door of protection, at the wooden former door of inboard during at locking states, withstand a latch, this latch can make the steel casement door in the outside not open, behind the door, latch could be removed the control to external door, thereby has formed a kind of security door structure in must opening with key earlier.

Make a general survey of the more security door of present kind, all be at the wooden steel door that installs additional more outdoors one, though can prevent from directly heavily to hit or destroy wooden inside door, but because door leaf and its pick-proof poor performance of a doorframe locking one place of some security door, door leaf and doorframe locking three places are also arranged, but all be by the control of the door lock sold on the market, obviously present security door all exists the open place of door lock and door-hinge or hinge and is exposed to the defective on a surface, thereby easily is damaged.The utility model has taked the steel external door to protect wooden inside door, and the mode that wooden interior gate control steel external door is opened promptly must be handed key and be stretched into the hole that only can put in a hand on the steel external door, could remove the control to external door after wooden inside door is opened.Steel plate on the external door, iron bar can prevent the destruction to Door and its lock in wooden.Locking point everywhere is set between steel door leaf of the present utility model and the steel door frame, and the pick-proof performance is remarkable, even will the steel door leaf can not be pulled off from steel door frame after the door-hinge destruction.

Provide concrete structure of the present utility model and realize the technical solution of the utility model below in conjunction with accompanying drawing.

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

Fig. 2 is tangent plane, the schematic top plan view of Fig. 1.

Fig. 3 is a locking states schematic diagram of the present utility model.

Fig. 4 is an opening schematic diagram of the present utility model.

Wherein:

（1） （2） （3） （4） （5） （6） （7） （8） （9） （10） （11） （12） （13） （14） （15） （16） （17） （18） （19） （20） （21） （22） （23） （24） （25） （26） （27） （28） （29） （30）（31） （32） （33） 。

Doorframe of the present utility model (2) is that it has three breach in upper, middle and lower (4), (6), (8) " door leaf is opened a side " by 40 * 40 angle steel weldering system.Doorframe (2) passes each three fixing hole of both sides with expansion bolt, is fixed on the wall in former door (1) outside, referring to Fig. 1, Fig. 2.Door leaf framework of the present utility model (3) is by 30 * 30 angle steel and 25 * 25 angle steel weldering system, connects with doorframe (2) by door-hinge (17).Be welded with 1mm steel plate (13) on the door leaf framework (3), it is that the open keyhole (12) of 100mm is corresponding with former door door lock that there is a diameter at (can adopt iron bar to install window screening additional according to user's needs door leaf upper and lower) door leaf middle part.There are horizontal dead bolt hole (20) that cross locking tongue (15) penetrates and the main dead bolt hole (21) that moves up and down for main dead bolt (7) in door leaf framework (3) middle part.Be welded with interlocking mechanism of the present utility model between door leaf framework (3) and the steel plate (13), it is made of door handle (16), lock box (18), fork plate (19), horizontal-associate bar (14), cross locking tongue (15), perpendicular link rod (11), main dead bolt (7), upper lock tongue (5), following dead bolt (9), latch (22), referring to Fig. 1, Fig. 3.Adjustment nut (24) is arranged, stop collar (26), back-moving spring (23) on the latch (22).Spade pin (22) is arranged in the latch guide pin bushing (25) that is welded on the lock box (18).Also be welded with door handle axle sleeve (30), (31) and fixed cover (27) on the lock box (18), referring to Fig. 2.

When the people goes out to lock a door, earlier former door (1) is brought to closed condition (not locking), the people stands in the steel outer side of door steel door leaf is pushed doorframe (2), counterclockwise twist door handle (16) to locked position with hand, the square shaft of door handle (16) drives fork plate (19), horizontal-associate bar (14) moves thereupon cross locking tongue (15) is released, promptly stumbled by doorframe (2), main, on, following dead bolt (7), (5), (9) with being welded on the perpendicular link rod (11), be pushed into synchronously by fork plate (19), in, following breach (4), (6), (8) below is also stumbled by doorframe (2), referring to Fig. 1, Fig. 2, Fig. 3, then hand put in open keyhole (12) with former door (1) bring to locking states (as original door lock is " insurance " lock, can original door lock be screwed onto " insurance " state with key again), locking process along with former door (1), former door (1) tip cutting lock (22) compression reseting spring (23), insert in the pin hole (32) and fixed cover (27) on the fork plate (19), fork plate (19) is fixed and can not be rotated by latch (22), door handle (16) also can not twist, referring to Fig. 2, Fig. 3.

When the people entered, hand-held key stretched into the door-lock opening of open keyhole (12) with former door (1), and at this moment latch (22) is extracted out from fork plate (19) fixed cover (27) under the effect of back-moving spring (23) automatically.With hand clockwise direction twisting door handle (16), drive fork plate (19), regain cross locking tongue (15) thereupon horizontal, vertical link rod (14), (11), main, upper and lower dead bolt (7), (5), (9) are moved with breach (4), (6), (8) synchronously and are aligned, referring to Fig. 4, be pulled outwardly door handle (16) again, door leaf can be opened.

The effect of the extension spring among Fig. 2, Fig. 3, Fig. 4 (28), extension spring yoke plate (29) mainly is to hold fork plate (19) to withstand main dead bolt (7), perpendicular link rod (11) can not be fallen naturally owing to deadweight when the enable possition, next is that good feel is arranged when twisting door handle (16), as Fig. 4.

Be welded on the door leaf framework (3) at the catch (10) that upper lock tongue (5) is located among Fig. 1, leading, descending dead bolt (7), (9) to locate same washer and omitted, purpose is clearly to express the action of dead bolt in indentation, there.The effect of washer (10) is, when steel door leaf and doorframe (2) locking, upward, main, following dead bolt (5), (7), (9) are positioned between upper, middle and lower breach (4), (6), (8) below and the washer (10) of doorframe (2), make locking point more firm, referring to Fig. 2, Fig. 3.

The link stopper (33) that perpendicular link rod (11) is located among Fig. 2 is welded on the door leaf framework (3), locate respectively there is one in last, main, following dead bolt (5), (7), (9), the effect of link stopper (33) is to stop perpendicular link rod (11) laterally to move and the twisting of dead bolt level, referring to Fig. 2.

Claims (3)

1, a kind of security door, its steel door leaf and steel door frame are installed in the former door and the former doorframe outside of inwardly opening, interlocking mechanism on the steel door leaf, and locking point everywhere is set between the steel door frame, the latch (22) that it is characterized in that interlocking mechanism on the steel door leaf is between steel door leaf and former door, when former door and steel door leaf all are in locking states, the position of the pin hole (32) on mortise lock (22) and the fork plate (19) is corresponding, and is inserted among pin hole (32) and the fixed cover (27).

2, door as claimed in claim 1, the fork plate (19) that it is characterized in that steel door leaf interlocking mechanism be welded with the horizontal-associate bar (14) of cross locking tongue (15) and be welded with, lead, the perpendicular link rod (11) of time dead bolt (5), (7), (9) links.

3, door as claimed in claim 1 is characterized in that having on the steel door leaf one and the corresponding open keyhole of former door lock (12).

Images