CN2340863Y

CN2340863Y - Safety door bolt

Info

Publication number: CN2340863Y
Application number: CN 98236385
Authority: CN
Inventors: 胡继东
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-09-22
Filing date: 1998-09-22
Publication date: 1999-09-29
Anticipated expiration: 2008-09-22

Abstract

The utility model relates to an anti-theft door bolt. A latch of the anti-theft door bolt is a hook pin with a folding hook (10) on the end, and a single-layer, a double-layer or a multi-layer lock chamber with a pin groove is arranged in a lock head (4) connected with a connecting plate (1) into a whole; the folding hook can freely slide in the pin groove which is communicated with the lock chamber, and the folding hook can rotate a certain angle to perform a locking function after abutted on the back end of the pin groove. The utility model adopts an angle-opposite bolt opening principle and has the structures of a single-layer and a double-layer angle-opposite bolt opening forms so as to have a strong anti-theft performance; the utility model is used for doors opening from opposite directions and folding doors, can be locked without an upper and a lower latches, and is suitable for anti-theft doors, the doors opening from opposite directions, the folding doors, warehouse doors, rear doors for wagons, etc. to use.

Description

Anti-theft door bolt

The utility model discloses a kind of antitheft articles for use, specifically is meant a kind of Anti-theft door bolt.

It is a kind of rectilinear motion with the action of withdrawing from tapered end that common bolt latch inserts tapered end.After lock is pried open, to stir latch and just door can be opened, theftproof performance is relatively poor.After clamshell doors, folding door are loaded onto common bolt, also needing usually just can make door lock tight at equipped up and down upper and lower cotter joint of door, so is very much trouble.

The tapered end of the utility model pair of latches and latch have carried out improving design, thereby purpose is the theftproof performance of reinforcement bolt and can directly bolt be tightly saved and assist the tight latch of door bolt superfluous up and down.

Described Anti-theft door bolt, comprise each parts of key seat, latch, junction plate and tapered end, it is characterized in that: the latch of described Anti-theft door bolt is the hook pin of a kind of end band folding hook (10), and the lock chamber of substance, dual or multiple band cotter way is arranged in the tapered end (4) that is connected as a single entity with junction plate (1).The size of the preceding cotter way (6) of described tapered end (4) and back cotter way (5) is bigger than the folding hook (10) of hook pin (2) end, makes the folding hook can freely draw cunning in groove; Preceding cotter way rear end and preceding lock chamber (9) UNICOM make to roll over to turn an angle and a locking action after hook (10) is butted on preceding cotter way rear end.The back cotter way (5) of described tapered end (4) staggers with the angle of preceding cotter way (6) on tapered end crosscut sectional position, back cotter way front end and preceding lock chamber UNICOM, rear end and lock chamber (7), back UNICOM, after making after folding hook (10) precession of hook pin (2) cotter way and being butted on lock chamber, back, a rotatable angle and play locking action.

Compare with common bolt, because the utility model has adopted the principle to the angle unlatching in design, and each bolt unlatching right angle difference is all arranged, also designed substance simultaneously to angle unlatching and dual to these two kinds of forms of angle unlatching, strengthened the antitheft effect of bolt thus greatly; Described bolt uses on clamshell doors, folding door, also can save upper and lower cotter joint and directly that bolt is tight, has both simplified operation, makes door be difficult for being pried open again, can play desirable antitheft effect.Be adapted at doors such as family security door, clamshell doors, folding door, warehouse gate, garage door, rear door of truck and go up use.

Fig. 1 is that the utility model is dual to angle bolt structure principle front view.

Fig. 2 is that the utility model is dual to angle bolt structure principle lateral view.

Fig. 3 is that the utility model is dual to angle bolt structure principle vertical view.

Fig. 4 is that the utility model substance is to angle bolt structure principle front view.

Fig. 5 is that the utility model substance is to angle bolt structure principle lateral view.

Fig. 6 is that the utility model substance is to angle bolt structure principle vertical view.

Among Fig. 1～Fig. 6, (1)-junction plate, (2)-hook pin, (3)-key seat, (4)-tapered end, (5)-back cotter way, (6) preceding cotter way, lock chamber, (7) back, (8) handle, (9)-preceding lock chamber, (10)-folding hook.

Hold the preceding cotter way of folding hook aligning that handle (8) rotation hook pin (2) makes the hook pin end, hook pin is moved to left (showing as Fig. 1), when the folding hook supported preceding cotter way rear end, the rotation hook pin makes rolled over hook aligning back cotter way; Continue the hook pin that moves to left after entering the back cotter way, when the folding hook supports cotter way rear end, back, rotate hook pin, the folding hook just hooks lock chamber, back, has so just finished the locking program of door.When withdrawing from hook pin, carry out in the same path of also escaping.Because the angle of cotter way on the tapered end axial plane can be provided with arbitrarily during fabrication, angle configurations changes a lot between two cotter ways, therefore this bolt has just had " angle " password: the lock chamber of band cotter way has increased the difficulty that the robber dials sled, these 2 the exquisite places that are Anti-theft door bolt.Tapered end, junction plate, hook pin are made of the powder metallurgical technique moulding and are economized most.

Claims

1, a kind of Anti-theft door bolt, comprise each parts of key seat, latch, junction plate and tapered end, it is characterized in that: the latch of described Anti-theft door bolt is the hook pin of a kind of end band folding hook (10), and the lock chamber of substance, dual or multiple band cotter way is arranged in the tapered end (4) that is connected as a single entity with junction plate (1).

2, Anti-theft door bolt as claimed in claim 1 is characterized in that: the size of the preceding locked groove (6) of described tapered end (4) and back cotter way (5) is bigger than the folding hook (10) of hook lock (2) end, makes the folding hook can freely draw cunning in groove; Preceding locked groove rear end and preceding lock chamber (9) UNICOM make to roll over to turn an angle and a locking action after hook (10) is butted on preceding cotter way rear end.

3, Anti-theft door bolt as claimed in claim 1, it is characterized in that: the back cotter way (5) of described tapered end (4) staggers with the angle of preceding cotter way (6) on tapered end crosscut sectional position, back cotter way front end and preceding lock chamber UNICOM, rear end and lock chamber (7), back UNICOM, after making after folding hook (10) precession of hook pin (2) cotter way and being butted on lock chamber, back, a rotatable angle and play locking action.