CN2157966Y

CN2157966Y - Padlock

Info

Publication number: CN2157966Y
Application number: CN 93209747
Authority: CN
Inventors: 曾长权
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-04-10
Filing date: 1993-04-10
Publication date: 1994-03-02
Anticipated expiration: 2003-04-10

Abstract

The utility model relates to a padlock. A shearing preventing block connected with a lock body is additionally arranged in the space formed by the lock body and a lock hook to protect the lock hook better and obtain the purposes of shearing prevention and prizing prevention. The utility model has the advantages of reasonable design, good shearing prevention and prizing prevention effects, and low cost. The utility model can be modified or produced without special equipment in common lock factories and hardware factories. The padlock is suitable for families, and enterprise institutions, such as government offices, factories, mines, etc.

Description

Padlock

The utility model relates to a kind of anti-theft device, particularly a kind of padlock.

Existing padlock all has only lock body, latch hook two large divisions, after locking, latch hook does not have any obstacle with the space that surrounds of lock body, with steel cut, the instrument of pucellas and so on just can be cut by this space enforcement, sled etc. is ruined the lock behavior, thereby all there is defective in the anti-theft feature of general padlock.

The purpose of this utility model is to provide a kind of and anti-ly cuts, the padlock of pick-proof.

The purpose of this utility model reaches like this: set up in lock body and space that latch hook surrounds and lock the anti-piece of cutting that body links to each other, prevent cutting piece and have breach and pass by locked object.

Fig. 1 is a structural representation of the present utility model, and as Figure of abstract.

Fig. 2 is a vertical view of the present utility model.

Fig. 3, Fig. 4 are structure chart, the vertical views of second embodiment of the utility model.

Fig. 5, Fig. 6 are structure chart, the vertical views of the 3rd embodiment of the utility model.

The utility model is described in further detail below in conjunction with drawings and Examples.

Set up on lock body (1) and prevent cutting piece (2), the two is fixedly linked.The anti-vertical section area of cutting piece should be roughly suitable with the area that the lock body surrounds with the back latch hook (3) of locking, and under the prerequisite that does not hinder latch hook to rotate freely, anti-space of cutting between piece and the latch hook is more little, anti-ly cuts, the pick-proof effect is good more.Prevent that cutting piece has breach (4), so that locked object passes.The anti-piece of cutting should be more than or equal to the cross section radius of latch hook right cylinder near the part of latch hook right cylinder (5) and the minimum dimension of air contact area (the anti-piece thickness of cutting).

Certainly, the anti-piece of cutting is not limited only to clog the space that latch hook and lock body surround, and it can also extend outside the latch hook right cylinder, and is " recessed " shape and holds right cylinder and the curved post of part, form guard post shape (6), wherein the openings of sizes of " recessed " shape is advisable can allow latch hook rotate turnover freely.

The utility model is reasonable in design, and it is effective and with low cost to prevent cutting sled, and general Lock Factory, hardware factory need not increase special installation can change a social system or produce, and is suitable for public institutions such as family and office, factories and miness and uses.

Claims

1, a kind of padlock comprises lock body and latch hook, it is characterized in that setting up in lock body and space that latch hook surrounds and locking the anti-piece of cutting that body links to each other.

2, padlock according to claim 1 is characterized in that the anti-piece of cutting should be more than or equal to the section radius of latch hook right cylinder with the minimum dimension of air contact area near latch hook right cylinder part.

3, padlock according to claim 1 is characterized in that the anti-vertical section area of cutting piece is roughly suitable with the area that latch hook surrounds with the rear lock body of locking, and prevents cutting piece and has breach and pass by locked object.

4, padlock according to claim 1, it is characterized in that the area that the anti-vertical section area of cutting piece surrounds greater than lock rear lock body and latch hook, the anti-piece of cutting extends and is " recessed " shape to the latch hook right cylinder and holds right cylinder and the curved post of part, and the anti-piece of cutting has breach and passes by locked object.