CN2389204Y

CN2389204Y - Lock

Info

Publication number: CN2389204Y
Application number: CN 99234141
Authority: CN
Inventors: 雷先顺
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-09-29
Filing date: 1999-09-29
Publication date: 2000-07-26
Anticipated expiration: 2009-09-29

Abstract

The utility model relates to a lock. The radial cross section of the lock forms other shapes, such as a triangle shape, a polygon shape, an ellipse shape or other irregular plane shapes, except the circle shape. When the lock is arranged in a door hole which is matched with the appearance of the lock, the lock is pulled and fixed on the door through the screw connection between a fixed plate and a lock body. As the radial cross section of the lock body has other shapes except the circle shape, even if the lock is struck and the lock is loosened, the lock and the door have no rotation, and thus the purpose of effective thief prevention is achieved.

Description

A kind of tapered end

The utility model belongs to a kind of lockset, particularly relates to cylinder lock head.

At present common cylinder lock head profile is cylindrical, during installation, generally earlier opens a cylindrical hole that matches with the tapered end diameter on door, be contained in tapered end in the aperture of door after, be connected by screw between a fixed head and the lock body other end and be strained and fixed on door.The problem that this tapered end exists is, when firmly hitting tapered end because doorframe distortion or tapered end are loosening, need not with key can make whole tapered end external force turn round rotation down by force, open door lock, thereby can not reach the effect of safe antitheft.

The purpose of this utility model provides a kind of tapered end, this tapered end is installed in door go up after, under external force is hit,, turn round by force down in external force and also can't rotate even doorframe distortion or tapered end are loosening, open door lock, thereby reach the purpose of safe antitheft.

In order to realize goal of the invention, the technical solution adopted in the utility model is: a kind of tapered end comprises lock body, lock core, pellet shot from a slingshot, pellet shot from a slingshot back-moving spring, and the lock body radial section is other shapes except that circular.

When the utility model tapered end is installed in the aperture of door that matches with the tapered end profile, be connected by screw between fixed head and the lock body and be strained and fixed on door, because the tapered end radial section is other shapes except that circular, even hit tapered end like this, make tapered end loosening, firmly also can't make between tapered end and the door to rotate, thereby reach effectively antitheft purpose.

Below in conjunction with accompanying drawing the utility model is further specified:

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is first embodiment longitudinal section view of the utility model.

Fig. 3 is second embodiment radial section of the utility model schematic diagram.

Fig. 4 is the 3rd embodiment radial section schematic diagram of the utility model.

Fig. 5 is the 4th embodiment radial section schematic diagram of the utility model.

Fig. 6 is the 5th embodiment radial section schematic diagram of the utility model.

As shown in Figure 1 and Figure 2, the utility model comprises lock body 1, lock core 2, pellet shot from a slingshot 3, back-moving spring 4, lock body 1 profile adopts equilateral triangle, on door 7, open an equilateral triangle hole of matching again with tapered end 1 profile, lock body 1 is squeezed in door 7 holes, be connected with lock body 1 by screw 6 with circular fixed head 5 at door 7 back sides, tapered end is fixedly clamped on door 7.Because lock body 1 external surface is that plane and plane fit tightly with door 7 internal surface of hole, promptly use external force to make tapered end loosening like this, also can't make the tapered end rotation, thereby reach the purpose of safe antitheft.

It is quadrangle, ellipse, spline teeth, concave shaped that the utility model tapered end profile also can adopt the radial section as Fig. 3, Fig. 4, Fig. 5, Fig. 6, in being installed in the aperture of door that matches with it after, can't make its rotation, all can reach higher safe antitheft.

Claims

1, a kind of tapered end comprises lock body (1), lock core (2), pellet shot from a slingshot (3), back-moving spring (4), it is characterized in that lock body (1) radial section is other shapes except that circular.

2, tapered end according to claim 1 is characterized in that lock body (1) radial section is triangle, polygon, ellipse and other concave plane figures.