CN2130195Y

CN2130195Y - Self-lock anti-theft hinge

Info

Publication number: CN2130195Y
Application number: CN 92224643
Authority: CN
Inventors: 孙广平
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-06-13
Filing date: 1992-06-13
Publication date: 1993-04-21
Anticipated expiration: 2002-06-13

Abstract

The utility model relates to a self-lock anti-theft hinge which is the dual-purpose self-lock anti-theft hinge and can be used for various windows or doors. The utility model is characterized in that common hinges are provided with self-lock anti-theft flanges or self-lock concave and convex plates. When the hinges are closed, the self-lock anti-theft flange is inserted into the other self-lock anti-theft flange, or the self-lock convex plate is inserted into the self-lock concave plate, which are mutually matched and limited. When rotating shafts of the hinges are broken, the two flanges or self-lock concave and convex plates can still perform a supporting function. The windows or doors can not be opened even if a space exists between the window and the window frame or the door and the door frame, so the hinges have an antitheft function.

Description

Self-lock anti-theft hinge

The utility model belongs to compound hinges (the claiming hinge again) technical field that door and window is used.

Existing Picking-preventing hinge (patent announcement CN2046912U) is to have installed safety pin and safety vent on two hinge plates additional, when hinge is closed, safety pin inserts in the safety vent, when the hinge turning cylinder was destroyed, safety pin and safety vent still play supporting role, and made hinge have anti-theft feature.But the safety pin of this Picking-preventing hinge separates with hinge plate, has only connecting mode reliable, could play antitheft effect.In addition, the thickness of safety vent is exactly the thickness of hinge plate, and the contact area of safety vent and safety pin is less.

Another kind of anti-theft hinge (patent announcement CN2040133U) has increased the flap theft-prevention structure on two hinge plates, make hinge have anti-theft feature.But this anti-theft hinge can only limit two hinge plates along a direction changing of the relative positions, simultaneously, has increased flap, has wasted material.

The purpose of this utility model is to provide the hinge of two kinds of new constructions, and anti-theft feature is improved rationally more, and is safe and reliable.

First kind of theft-prevention structure of the present utility model is achieved in that it comprises two hinge plates, turning cylinder etc., it is characterized in that design has the antitheft flange of self-locking on two hinge plates, and the internal diameter of a self-locking flange is more bigger than the external diameter of another self-locking flange, when hinge is closed, one self-locking flange inserts in another self-locking flange, work in coordination, mutually restriction.When turning cylinder was destroyed, the self-locking flange of working in coordination, limiting mutually still can play supporting role, and stoped two hinge plates along the front and back changing of the relative positions up and down, made hinge have anti-theft feature.Simultaneously, the self-locking flange has certain height of projection again, so the contact area of two self-locking flanges is bigger, when turning cylinder was destroyed, even between door and window and the doorframe and window frame certain clearance is arranged, the utility model still can play antitheft effect, thereby anti-theft feature is improved rationally more, safe and reliable.

Second kind of theft-prevention structure of the present utility model is achieved in that it comprises two hinge plates, turning cylinder etc., it is characterized in that design has self-locking convex-concave plate on two hinge plates, and notch board is slightly wideer than flange, and the convex-concave plate can be " V " type, also can be other geometry.When hinge was closed, flange inserted notch board inside, worked in coordination, mutually restriction.When turning cylinder is destroyed, work in coordination, the self-locking convex-concave plate of restriction still can play supporting role mutually, stops two hinge plates to produce the changing of the relative positions, makes hinge have anti-theft feature.

Below in conjunction with accompanying drawing two kinds of specific embodiments of the present utility model are further described:

Fig. 1 is first kind of theft-prevention structure schematic diagram of the present utility model

Fig. 2 is the A-A cross-sectional schematic of Fig. 1

The A-A cross-sectional schematic of Fig. 1 when Fig. 3 is the hinge closure

Fig. 4 is second kind of theft-prevention structure schematic diagram of the present utility model

Fig. 5 is the A-A cross-sectional schematic of Fig. 4

The A-A cross-sectional schematic of Fig. 4 when Fig. 6 is the hinge closure

Fig. 7 is that the B of Fig. 4 is to view

Referring to Fig. 1, Fig. 2, Fig. 3, the specific embodiments of first kind of theft-prevention structure of the present utility model is: it comprises the hinge plate 1,2 of being with fixing hole 3, forms by turning cylinder 6 hinges.Design has self-

locking flange

4,5 orthogonal with it respectively on hinge plate 1,2, and the internal diameter of flange 4 is more bigger than the external diameter of flange 5, and the height of projection of flange 4 should not influence the normal use of hinge.During use, hinge plate 1,2 is fixed on door and window or the doorframe and window frame by fixing hole 3, and when hinge was closed, flange 5 inserted in the flange 4, work in coordination with flange 4, mutually restriction play supporting role, when turning cylinder 6 is destroyed,

flange

4,5 works simultaneously, stop two hinge plates 1,2 along the front and back changing of the relative positions up and down, door and window can not be opened, and makes hinge have anti-theft feature.

Referring to Fig. 4, Fig. 5, Fig. 6, Fig. 7, the specific embodiments of second kind of theft-prevention structure of the present utility model is: it comprises the hinge plate 1,2 of being with fixing hole 3, forms by turning cylinder 6 hinges.Design has self-locking flange 4 and self-locking notch board 5 respectively on hinge plate 1,2, and notch board 5 is slightly wideer than flange 4.During use, hinge plate 1,2 is fixed on door and window or the doorframe and window frame by fixing hole 3, and when hinge was closed, flange 4 inserted notch board 5 inside, work in coordination, mutually restriction play supporting role, when turning cylinder 6 is destroyed, flange 4 and notch board 5 work simultaneously, stop 1, the 2 mutual changing of the relative positions of two hinge plates, door and window can not be opened, and makes hinge have anti-theft feature.

Claims

1, a kind of self-locking anti-theft hinge that uses on the door and window that is applicable to, it comprises hinge plate, turning cylinder etc., it is characterized in that design has the self-locking flange of working in coordination, limiting mutually on the hinge plate.

2, another kind is applicable to the self-locking anti-theft hinge that uses on the door and window, and it comprises hinge plate, turning cylinder etc., it is characterized in that design has the self-locking convex-concave plate of working in coordination, limiting mutually on the hinge plate.

3, self-locking anti-theft hinge according to claim 1 is characterized in that self-locking flange and hinge plate are mutually perpendicular.

4, according to claim 1,3 described self-locking anti-theft hinges, it is characterized in that the internal diameter of a self-locking flange is more bigger than the external diameter of another self-locking flange.

5, self-locking anti-theft hinge according to claim 2 is characterized in that the self-locking notch board is slightly wideer than self-locking flange.