CN2199016Y

CN2199016Y - Olecranon-type pipe wrench

Info

Publication number: CN2199016Y
Application number: CN 94236938
Authority: CN
Inventors: 李庆明
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-08-02
Filing date: 1994-08-02
Publication date: 1995-05-31
Anticipated expiration: 2004-08-02

Abstract

The utility model discloses an olecranon type pipe wrench. An olecranon-shaped adjustable clamp (1) of the utility model is hinged with a fixing clamp (4) with cambered clamp mouths (3) by a pin axle (2), and a return spring (5) is clamped between the adjustable clamp (1) and the fixing clamp (4). Each clamp mouth (3) is provided with insection. The bending part of the olecranon of the adjustable clamp (1) has an included angle of 120 DEG. The utility model has the advantages of wide application ranges, easy use and low cost and can wrench pipe fittings, standard screw caps, screw caps with special shapes, etc.

Description

Olecranon-type pipe wrench

The utility model belongs to the haberdashery and hardware instrument and makes the field.

Present all kinds of pipe wrenches, function singleness can not remake other purposes except that pulling pipe fitting.

The purpose of this utility model is a kind of novel pipe wrench of design, makes it on basis simple in structure, has wider accommodation, has both made general pipe wrench and has used, and can be used as common wrench again and uses.

The purpose of this utility model is to realize by following design.

In the pipe wrench of, fixing pincers, adjustable clamp being formed by pincers, hawk is chewed the shape adjustable clamp be associated in the inner chamber of fixedly pincers with arc vice jaw by the bearing pin hinge, block a spring once between adjustable clamp and fixing pincers, each jaw has groove.The adjustable clamp hawk chews kink and has 120 degree angles.

During use, press downwards gently on the friction rag of user with the big crook of thumb adjustable clamp, the return spring pressurized, adjustable clamp rotates around bearing pin, and jaw opens, entangle by behind the stubborn workpiece with jaw, no longer by the dynamic friction rag, the spring return, make moving jaw with by the surface of the work CONTACT WITH FRICTION, turn the pincers handle then, workpiece is promptly turned.At this moment, because the power that turns is a power of fastening jaw by the power that workpiece affacts moving jaw, it is big more that the user turns power, the power of fastening of jaw is big more, the hawk of adjustable clamp structure uniqueness chews shape in addition, makes workpiece be turned in the process at quilt and is firmly clamped tightly by jaw, can not skid.Uniaxially repeats to pull process so repeatedly, just workpiece can be screwed to the position that needs.

Have 120 degree angles because the hawk of adjustable clamp chews kink, the utility model also can be used as the normal activity spanner and uses; In addition, because jaw of the present utility model can be put the surface that the mode of contact is vised workpiece, therefore also can be used as the instrument of pulling other special-shaped workpiece (damaged especially or quilt is pulled sliding 3 nut).

Description of drawings is as follows:

The structure chart of Fig. 1, the utility model embodiment.

The front view of Fig. 2, the fixing pincers of the utility model and pincers handle.

The vertical view of Fig. 3, Fig. 2.

Fig. 4 hawk chews the front view of shape adjustable clamp.

In the drawings, hawk chews shape adjustable clamp 1 and is associated in the inner chamber 8 of the fixedly pincers 4 with arc vice jaw 3 by bearing pin 2 hinges, blocks position spring 5 once between adjustable clamp and fixing pincers, and each jaw has groove 6.Adjustable clamp 1 hawk chews kink and has 120 degree angles, and its big crook is equipped with friction rag 7.

In force, the utility model can be made all size that varies in size.

Claims

1, hawk chews the formula pipe wrench, form by pincers handle, fixing pincers, adjustable clamp etc., it is characterized in that, described adjustable clamp is that a hawk chews shape adjustable clamp (1), adjustable clamp (1) is associated in the have arc vice jaw inner chamber (8) of fixedly pincers (4) of (3) by bearing pin (2) hinge, block position spring (5) once between adjustable clamp and fixing pincers, each jaw has groove (6); The adjustable clamp hawk chews kink and has 120 degree angles.

2, the pipe wrench according to claim 1 is characterized in that, the big crook that hawk chews shape adjustable clamp (1) is equipped with friction rag (7).