CN2144115Y

CN2144115Y - Locking flat hook for safety belt

Info

Publication number: CN2144115Y
Application number: CN 92237819
Authority: CN
Inventors: 徐行龙
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-12-02
Filing date: 1992-12-02
Publication date: 1993-10-20
Anticipated expiration: 2002-12-02

Abstract

The utility model relates to a locking flat hook for a safety belt. The locking flat hook for a safety belt is a device comprising a lock plate and a clamping plate which are connected to a hook body by a pin shaft and a spring, and can realize self-locking function. The hook body the lock plate are arranged in cross to form scissors structure, and the clamping plate is arranged on the front lower part of the hook body. A concave hole on the lock plate and a convex hook on the clamping plate corresponding to the concave hole are matched with respective lock supporting springs. The utility model has reliable self-locking function, safe and labor-saving unlocking operation.

Description

Locking flat hook for safety belt

The utility model belongs to the flat hook of a kind of safety strap kayser.

The current flat hook of kayser that is used for safety strap, be self-locking mechanism to be housed at the coupler body back side of easy braces ring type hook, as shown in Figure 1, the flat hook of this kayser is by coupler body (1), jam plate (2), clamp (3), pull lock spring (4) (5) and bearing pin (6) (7), link, wherein jam plate (2) is positioned at the front of coupler body (1), and its lower end links by bearing pin (6) and coupler body, clamp (3) is positioned at the behind of coupler body (1), links by bearing pin (7) and coupler body.Fig. 2 and Fig. 3 are respectively that this hook spare refers to that by formula release and the palm by formula unlocking operation scheme drawing, its shortcoming is as seen from the figure: the release application force makes the operation effort because of forming torsional moment not on same straight line; And the position of holding coupler body is also near the opening part of shackle, not only may cause being hung by the leakage of hook thing, but also abrade hand easily.

The purpose of this utility model is that the flat hook of above-mentioned kayser is improved, and proposes a kind of rapid operation, articulates the safe and reliable flat hook of safety strap kayser of lock of pulling.The purpose of this utility model realizes by the following technical solutions: promptly make originally by coupler body, jam plate, clamp, pull the lock spring be connected the flat hitcher of kayser that bearing pin forms as shown in Figure 4 new version arranged, it is characterized in that:

A. described coupler body (8) intersects with described jam plate (9) and is mounted to scissor structure, links by means of bearing pin (13) between two bodies;

B. described clamp (10) is contained in the front lower place of coupler body (8), links by bearing pin (14);

C. be positioned at bearing pin (13) (14) top one side, have shrinkage pool (15) on jam plate (9), corresponding with it have protruding hook (16) in clamp (10) upper end; Be positioned at bearing pin (13) (14) below one side, respectively and respectively be equipped with between the coupler body (8) to pull and lock spring (12) (11) at clamp (10) and jam plate (9); Protruding hook (16) matches with the corresponding and same spring of shrinkage pool (15) (12) (11), forms the self-locking mechanism of the flat hook of the utility model kayser.

Advantage of the present utility model and effect can describe in conjunction with Fig. 5 and Fig. 6.Fig. 5 is that the utility model refers to by formula unlocking operation scheme drawing; Fig. 6 is that the utility model palm is by formula unlocking operation scheme drawing.By two figure as seen: no matter be the finger grabbing type or the palm by the formula release, its release application force is all by same straight line, thereby makes operation greatly laborsaving; And in release work, the manual manipulation position also away from the shackle opening part, thereby is avoided leak hanging and scratch staff's hand effectively.

Claims

The flat hook of a kind of safety strap kayser, by coupler body, jam plate, clamp, pull the lock spring be connected bearing pin and form, it is characterized in that:

A. described coupler body (8) intersects with described jam plate (9) and is mounted to scissor structure, links by means of bearing pin (13) between two bodies;

B. described clamp (10) is contained in the front lower place of coupler body (8), links by bearing pin (14);

C. be positioned at bearing pin (13) (14) top one side, have shrinkage pool (15) on jam plate (9), corresponding with it have protruding hook (16) in clamp (10) upper end; Be positioned at bearing pin (18) (14) below one side, respectively and respectively be equipped with between the coupler body (8) to pull and lock spring (12) (11) at clamp (10) and jam plate (9); Protruding hook (16) matches with the corresponding and same spring of shrinkage pool (15) (12) (11), forms the self-locking mechanism of the flat hook of the utility model kayser.