CN2136717Y

CN2136717Y - Multipurpose spanner

Info

Publication number: CN2136717Y
Application number: CN 92225187
Authority: CN
Inventors: 李凤才; 齐军
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-06-14
Filing date: 1992-06-14
Publication date: 1993-06-23
Anticipated expiration: 2002-06-14

Abstract

The utility model relates to a multipurpose spanner, which is a multipurpose tool with monkey spanner, pipe vice and hand vice functions. The figure takes the monkey spanner as mould. The multipurpose spanner is composed of a handle, an adjustable gripping head and an adjusting worm wheel three parts, wherein, the adjustable gripping head is used at both faces; one face is flat; the other face is provided with a slide spanner jaw and teeth jaws. The three functions are realized by changing faces; the changing faces are realized by the direct rotation of the adjusting worm wheel. The pipe vice and the hand vice functions are finished by the oblique wedge adjustment of the slide spanner jaw. Because the local of the oral surface of the clamping head fixed at the handle end is provided with teeth, the rest parts keep plane; a cylinder (especially non-ferrous metal and soft arbitrary geometric bodies) free from influence can be ensured when rotating; the corner portion of an object with corners being not damaged when the object rotates can be better ensured.

Description

Multipurpose spanner

The utility model relates to a kind of throw, especially can have monkey wrench, pipe wrench simultaneously and have the hand vice folder to hold the all-purpose wrench of function.

At present, in the known technology, monkey wrench only is fit to the object of horn shape profiles such as rotation four directions, six sides, can not have an effect to the object of cylindrical shape; Though pipe wrench is fit to rotating cylindrical body, do not have the function of monkey wrench, and hand vice only can press from both sides and holds object, so these three kinds of instruments can not be general in normal operation.In the real work, as electromechanical equipment installation, maintenance, motor vehicle repair or the like, need the time of these three kinds of instruments very general simultaneously, when particularly going out to assemble pipeline, generally, need carry multiple instrument, over-burden for the carrier.During the high-altitude independently working, multiple instrument uses by turns, more brings inconvenience.A kind of combination wrenches is disclosed in China's utility model patent file, though it also can compatible monkey wrench and two kinds of functions of pipe wrench, owing to increase the moving jaw of band rotating shaft, causes Wrench head excessive, the activity that has enlarged when spanner uses takes up room, and has also just reduced the fitness of spanner.In addition, the whole tooth punchings of the jaw on the handle cause damage of band object bight, angle and surface tear easily during as monkey wrench.

The purpose of this utility model provides a kind of all-purpose wrench, and it not only keeps the function of monkey wrench, and has the function of pipe wrench and hand vice simultaneously.

The purpose of this utility model is achieved in that its appearance and modeling is a mould with the normal activity spanner, is made up of handle (comprising fixed chuck), active chuck and adjusting worm gear three parts.Interchangeable use of active chuck, one side has the function of normal activity spanner for flat mouthful, and using method is identical with the normal activity spanner; Another wears sliding jaw, utilizes the wedge Principles of Regulation to carry out the clamping force compensation, has the function of common pipe wrench, and using method is identical with common pipe wrench.Because sliding jaw utilizes wedge Principles of Regulation grip objects, under the active force in use, also can serve as hand vice temporarily and use.For the adaptive act chuck changes the face needs, active chuck bottom tooth bar does not have stroke limit, uses the adjusting worm gear to change face and gets final product.

Owing to adopt such scheme, realize that a kind of instrument serves many purposes, and have simultaneously simple in structure, carry and multiple characteristics such as easy to use.

Further specify this use is novel below in conjunction with drawings and Examples.

Fig. 1 is the utility model functional schematic.

Fig. 2 is the utility model structural representation.

A among the figure is the situation B when using as the normal activity spanner, is the situation (1) when using as common pipe wrench, handle upper end fixed chuck (2), active chuck (3), sliding jaw (4), retracting spring (5), the opening degree of active chuck bottom is regulated tooth bar (6), regulates worm gear.

In Fig. 1, because can changing face, uses active chuck, and the A face keeps the plane of former normal activity spanner, and function is consistent with the normal activity spanner; B wears sliding jaw, utilizes the wedge Principles of Regulation to carry out the clamping force compensation, realizes the function of pipe wrench and hand vice.

In Fig. 2,2/5 width local tooth punching in middle part on handle end fixed chuck (1) actinal surface, required frictional force in the time of can guaranteeing as pipe wrench is not damaged the bight of band angle object or is scratched its surface in the time of can guaranteeing as monkey wrench well yet.Sliding jaw (3) arc-shaped tooth on the active chuck (2) guarantees jaw and folds two point of contacts of circular section on same diameter.Sliding jaw (3) back side has slideway and active chuck (2) ramp chute to be slidingly matched.Under the turning effort power in use, because sliding jaw (3) arc-shaped tooth and be rotated frictional force between the object greater than the frictional force between sliding jaw (3) back side slideway and active chuck (2) upper hopper chute, sliding jaw (3) slides naturally along active chuck (2) upper hopper chute cammed surface, the generation wedge is regulated, reduce the distance between two jaws, finish the clamping force compensation that pipe wrench must have, realize the pipe wrench function.Sliding jaw (3) adopts retracting spring (4) to reset.For the adaptive act chuck changes the face needs, active chuck bottom tooth bar does not have stroke limit (5), uses adjusting worm gear (6) face of changing to get final product.

Claims

1, a kind of can have monkey wrench, pipe wrench simultaneously and have hand vice folder hold the all-purpose wrench of function, form by handle (comprising fixed chuck), active chuck and adjusting worm gear three parts, it is characterized in that: active chuck has two use faces, one side is flat mouthful, and another wears the wedge sliding jaw.

2, all-purpose wrench according to claim 1 is characterized in that: sliding jaw arc-shaped tooth, the back side have that the cammed surface chute is slidingly matched on slideway and the active chuck, take back the journey spring.

3, all-purpose wrench according to claim 1 is characterized in that: active chuck bottom tooth bar does not have stroke limit.

4, all-purpose wrench according to claim 1 is characterized in that: 2/5 width local tooth punching in middle part on the handle end fixed chuck actinal surface.