CN2072567U

CN2072567U - Anti-prizing device for outside open door

Info

Publication number: CN2072567U
Application number: CN 90204943
Authority: CN
Inventors: 左学禹
Original assignee: Individual
Current assignee: Individual
Priority date: 1990-04-19
Filing date: 1990-04-19
Publication date: 1991-03-06

Abstract

The utility model relates to an anti-prizing device for house doors, comprising an anti-prizing hinge, a lock protecting cover plate, an anti-drilling cover plate, an angle block at the door, etc. One piece of the anti-prizing hinge is provided with a long folded edge, when the hinge is folded together, the folded edge is buckled on the other piece of the hinge. The lock protecting cover plate is an N-shaped iron plate, and the anti-drilling cover plate is composed of a lock core cover plate and a lock hole barrier sheet. A circular lock hole pit is arranged in the middle of the lock core cover plate, and a circular hole whose diameter is a little bigger than the key hole is arranged in the middle on the bottom of the lock hole pit. The lock hole barrier sheet is a circular sheet made of hardish metal materials, a rectangular hole in which a key can be just inserted is arranged in the middle, and the rectangular hole can rotate in the lock hole pit.

Description

Anti-prizing device for outside open door

The utility model is one group of external-open entering house door anti-picking device, belongs to civilian hardware product.

On the market products such as security door and comprehensive door lock are arranged now.Security door is all steel goods, the price height.Need during installation former outward opening door is removed.Comprehensive door lock is installed also to be needed original door lock is removed.The utility model just adds some annexes on original door lock basis except that needs change hinge, can reach the purpose of pick-proof, anti-drilling, anti-saw, tamper, and price only is equivalent to a door lock, is easy to popularize.

The purpose of this utility model is for external-open entering house doors such as residential houses and office of enterprises and institutions provide a kind of simple, reliable anti-picking device, removes user's trouble and worry from.

Content of the present utility model comprises Picking-preventing hinge, Guard for keyhole plate, anti-drilling cover plate and door corner iron etc.Fig. 1 is the schematic diagram of Picking-preventing hinge; Fig. 2 is the schematic diagram of Guard for keyhole plate; Fig. 3 is the schematic diagram of anti-drilling cover plate; Fig. 4 is a schematic diagram of corner iron.

Picking-preventing hinge by leaf of hinge among Fig. 1 1., 2., 4. 3. bearing pin wait composition with the end cap cap; Leaf of hinge is 1. than 2. slightly wide, and manys two flangings than ready-made hinge; In hinge axis one side one short flanging A is arranged, one long flanging B is arranged at opposite side; Flanging A is opposite with the B direction; 2. leaf of hinge has a short flanging C in hinge axis one side; When two leaf of hinge altogether the time, 2. leaf of hinge flanging B 1. fastens leaf of hinge, and flanging A is opposite with the C direction; Bearing pin is 3. 4. identical with ready-made hinge with the end cap cap, their all rivetings or be welded on the leaf of hinge; The Guard for keyhole plate be one as shown in Figure 2 '

' the font plate, '

' width of shape groove is slightly larger than door lock, it is thick that the degree of depth is slightly larger than lock; In the middle of the cover plate a bigger hole, garden is arranged, there are bolt hole and screw hole in two ends; As shown in Figure 3,2. 1. anti-drilling cover plate waited with the lockhole catch by lock core cover and form; The 1. middle lockhole nest that a garden shape is arranged of lock core cover has hole, a garden in the middle of its bottom, and slightly larger in diameter is in keyhole; Lock core cover is the edge flange 1., and its direction is opposite with lockhole nest depth direction; 1. lock core cover has bolt nest and screw pit all around, and its degree of depth is identical with the flange height, and direction is opposite with the lockhole nest; 2. the lockhole catch is the garden sheet made from harder metal material, and there is a rectangular hole centre, can just inject key; During installation, Guard for keyhole plate and anti-drilling cover plate be by penetrating being bolted on the door of door-plate, and make the lockhole catch just block lockhole, and the lockhole catch can rotate in the lockhole nest of lock core cover; Among Fig. 4, the width of door corner iron, on one side close with door-plate thickness, it is close that another side and doorframe expose mast width outward, and the angle bar both sides all have screw hole.

The utility model has been compared following advantage with products such as security door, theftproof locks:

(1) simple in structure, easy for installation, can utilize original door lock;

(2) tamper-resistant function is complete, good reliability, and door lock is anti-drilling, the anti-cutter of pick-proof, lock ear pick-proof, hinge erosion control, anti-saw, pick-proof;

(3) price is more cheap.

Realize that best way of the present utility model is the entering house door anti-picking device of making shown in Figure of

description

1,2,3,4.

The lock core cover of the anti-drilling cover plate of leaf of hinge Guard for keyhole plate and door corner iron all are 2～3 millimeters A with thickness ₃The steel plate press forming; About 3～6 millimeters of lockhole catch thickness is with 45 ^#Steel or 60Si ₂The Mn steel is processed into, and hardness is HRC40～45 after the heat treatment; Anti-drilling lid surface chromium plating; Guard for keyhole plate, Picking-preventing hinge and door corner iron surface are coated with white paint.

Claims

1, a kind of external-open entering house door anti-picking device is made up of Picking-preventing hinge, Guard for keyhole plate, anti-drilling cover plate and door corner iron etc.It is characterized in that: the leaf of hinge of Picking-preventing hinge is 1. than 2. slightly wide, and manys two flangings than ready-made hinge; In hinge axis one side one short flanging A is arranged, at opposite side one long flanging B is arranged, flanging A is opposite with the B direction; 2. leaf of hinge has a short flanging C in hinge axis one side; When two leaf of hinge altogether the time, 2. leaf of hinge flanging B 1. fastens leaf of hinge, and flanging A is opposite with the C direction; Bearing pin 3. with the 4. all rivetings or be welded on the leaf of hinge of end cap cap; The Guard for keyhole plate be one '

' font iron plate, '

' width of shape groove is slightly larger than door lock, it is thick that the degree of depth is slightly larger than lock; In the middle of the cover plate a bigger hole, garden is arranged, there are bolt hole and screw hole in two ends; 2. 1. anti-drilling cover plate waited with the lockhole catch by lock core cover forms; The 1. middle lockhole nest that a garden shape is arranged of lock core cover has hole, a garden in the middle of its bottom, and slightly larger in diameter is in keyhole; Lock core cover is the edge flange 1., and its direction is opposite with lockhole nest depth direction; 1. lock core cover has bolt nest and screw pit all around, and its degree of depth is identical with the flange height, and direction is opposite with the lockhole nest; 2. the lockhole catch is the garden sheet made from harder metal material, and there is a rectangular hole centre, can just inject key; During installation, Guard for keyhole plate and anti-drilling cover plate be by penetrating being bolted on the door of door-plate, and make the lockhole catch just block lockhole, and the lockhole catch can rotate in the lockhole nest of lock core cover; The width of door corner iron, on one side close with door-plate thickness, it is close that another side and doorframe expose mast width outward; The angle bar both sides all have screw hole.