CN2168941Y

CN2168941Y - Fireproof anti-pry door

Info

Publication number: CN2168941Y
Application number: CN 93221240
Authority: CN
Inventors: 王维民
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-08-12
Filing date: 1993-08-12
Publication date: 1994-06-15
Anticipated expiration: 2003-08-12

Abstract

The utility model belongs to a door that has special facilities, in particular to in a door of fire prevention pick-proof, it is equipped with a recess board by the whole or welded forming of sheet metal in its wallboard, installs pick-proof locking device in this recess inboard, and this locking device includes a driving gear, two racks and transfer line to and can insert two pairs of sliders in the door frame. Compared with the prior art, the fireproof and anti-prying door has the double functions of fire prevention and prying prevention, and is simple in structure, easy to manufacture, convenient to popularize, safe and reliable, and is an ideal fireproof and anti-prying door.

Description

Fireproof safety door

The utility model belongs to a kind of door that particular facility is housed, particularly in a kind of door of the pick-proof of preventing fires.

Existing labeled door generally can only be prevented fires, and does not have anti-theft measure, and general security door does not add fireproofing again.Simultaneously, general security door is many makes hollow door leaf by inside and outside double layer of metal plate, in positioning disk mechanism of hollow position installing, drive two lock points and slide up and down, respectively expose a locking point at the door leaf two ends few because of locking point, insecure, easily pried open, do not played antitheft purpose.Therefore, much be equipped with and still often have stolen incident to take place in the resident family of security door.

In order to address the above problem, the inventor once proposed an anti-utility application of forcing open the door of relevant fire prevention on January 5th, 93, and application number is that 93227099.9(now authorizes).

The purpose of this utility model just is anti-the forcing open the door of the fire prevention in the above-mentioned application done further the improvement, makes it become a kind of being convenient to and manufactures, and saves man-hour, reduce raw materials consumption, and safer reliable fire prevention is prevented forcing open the door.

The purpose of this utility model is achieved in that in the door leaf cavity that constitutes with inside and outside double layer of metal plate, adds and fills out flame-proof thermal insulation material, and brush with fire-retarding paint in the inside and outside double layer of metal plate outside, makes door leaf have highly high temperature resistant, fireproof performance.Simultaneously, in its cavity, install locking device, bearing iron hinge and resistant to elevated temperatures lockset etc.

The anti-locking device of forcing open the door of fire prevention of the present utility model is in the center of the inside panel inboard of door leaf one concave-board to be installed, the locking device of pick-proof is set in the groove of this concave-board, this pick-proof locking device comprises a driving gear that can drive two toothed rack, pick-proof lock is connected with driving gear, and a drive link and a pair of slide block are housed respectively on two toothed rack.When key inserts in the pick-proof lockhole, rotate driving gear, driving gear just drives two toothed rack, and two toothed rack just make two drive links make progress respectively, move down, thereby two pairs of slide blocks are inserted respectively in the slotted eye of upper and lower crossbeam (or lintel) of doorframe, thereby finish the lock out action of door.In the time will opening door lock, can rotate driving gear round about, make tooth bar and drive link recover the origin-location, then the two pairs of slide blocks just withdraw from the slotted eye of the upper and lower crossbeam of doorframe, and door is just opened.

Anti-the forcing open the door of fire prevention of the present utility model has the dual-use function of fire prevention pick-proof compared with the prior art, and simple in structure, easy to manufacture, is convenient to popularization, safe and reliable, and being that a kind of ideal fireproof is anti-forces open the door.

In order to further specify the anti-structure of forcing open the door of fire prevention of the present utility model, with reference to accompanying drawing, be described below in conjunction with the embodiments, its accompanying drawing has:

Fig. 1 is anti-elevation of forcing open the door;

Fig. 2 is the A-A sectional drawing of door shown in Figure 1;

Fig. 3 is the elevation of the partly cut-away of door shown in Figure 1;

Fig. 4 is the B-B sectional drawing of door shown in Figure 3.

In Fig. 1-4: (1) is wallboard outdoors, and (2) are a door inside panel, and (3) are concave-board, (4) be resistant to elevated temperatures fire proofing material, (5) are the limit lock of door, and (6) are pick-proof lock, (7) be driving gear, (8) be tooth bar, (9) are drive link, and (10) are slide block, (11) be locking device installing hole cover plate, (12) be hinge, (13) are the string pin, and (14) are doorframe.

Embodiment: the fire prevention as shown in Fig. 1-4 is anti-forces open the door, it is by whole compacting of two layers of thin steel plate or welding fabrication, at the middle part that door inside panel (2) is inboard one concave-board (3) is installed, driving gear (7) that can drive two toothed rack (8) of installing in groove (3), this driving gear (7) is communicated with the pick-proof lockhole, rotatable this driving gear (7) when key inserts lockhole, after rotating driving gear (7), drive two toothed rack (8) by it, two toothed rack (8) make respectively on two drive links (9) that are connected with them, move down, drive the two pairs of slide blocks (10) that are contained on their ends again by them, insert respectively on the doorframe (14) on, in the slotted eye in the lower transverse beam (or lintel), door leaf is locked on the doorframe 14.If will open the time, just available key rotates driving gear round about, makes the rack drives drive link recover the origin-location, and then the two pairs of slide blocks just withdraw from the slotted eye of the upper and lower crossbeam of doorframe, have just finished breakdown action.

In a side of door leaf lock on one side is housed also, it also is equipped with a pair of slide block, and they can insert in the slotted eye on the principal post of doorframe during locking.

Claims

1, a kind of fire prevention is anti-forces open the door, it comprises doorframe, door leaf and pick-proof lock, it is characterized in that making the inside and outside wallboard of door leaf with metal sheet roof covering, be filled with resistant to elevated temperatures fire proofing material in the cavity between inside and outside wallboard, and be equiped with a concave-board at the middle part of inside panel inboard, the locking device of pick-proof is housed in the groove of described concave-board.

2, anti-forcing open the door as claimed in claim 1, it is characterized in that described locking device comprises a driving gear that is communicated with the pick-proof lockhole, it can drive two toothed rack, article two, tooth bar is connected with two drive links respectively, a pair of slide block respectively is equipped with in end at two drive links, and they can insert respectively in the slotted eye of upper and lower crossbeam of doorframe.

3, anti-forcing open the door as claimed in claim 1 is characterized in that a side of described door leaf is also adorned with the fast limit lock of a pair of cunning.