CN2175070Y

CN2175070Y - Adjustable wrench

Info

Publication number: CN2175070Y
Application number: CN 93237161
Authority: CN
Inventors: 刘宏超
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-06-25
Filing date: 1993-06-25
Publication date: 1994-08-24
Anticipated expiration: 2003-06-25

Abstract

The utility model provides a pair of adjustable gripping tongs which is suitable for operation of large work pieces, being mainly composed of handles, clamping jaws, a clamping device, etc. The clamping jaws are made of flexible adhesive tapes. One end of each clamping jaw is fixed on the top part of each handle, and the other end of each clamping jaw is not fixed, but is but controlled, adjusted and clamped through the clamping device and a clamping bolt. Two handles and the clamping device are hinged by the bolt to cause the clamping jaws to form closed ring-shaped clamping jaws for clamping workpieces. The clamping jaws can be squeezed up by using the handles and the clamping device, and the generated friction force can clamp the workpiece to rotate. The clamping jaws are flexible. The utility model is suitable for the operation of the workpieces of various shapes, and has the advantages of big adjustable range, uniform stressing, no damage of the workpiece surface and strong practicability.

Description

Adjustable wrench

The utility model relates to a kind of plench of specific purposes, especially a kind of can regulated at will be applicable to the pincerlike spanner of operating on circle or other shape workpieces.

The now general pliers that uses is to rely on the serratd edge on the jaw to sting tight object, carries out clamping or rotary manipulation, causes the scuffing of object surface or makes workpiece deformation easily like this.(patent No.: 90223645.8), it is applicable to the rotation of tubular workpieces to the adjustable soft spanner of Chu Xianing, does not have holding function, and is the same with general spanner, and its folder mouthful adjustable range is little, can not be widely used in the object of various sizes in recent years.

The purpose of this utility model is to provide a kind of big gripping tongs of mouthful adjustable range that presss from both sides for overcoming above-mentioned the deficiencies in the prior art part, it is non-rigid contact, the object that it can be fit to different shape and unlike material uses, and a folder mouthful scope can be regulated arbitrarily, and is flexible and convenient to use.

Task of the present utility model realizes as follows, it comprises compositions such as two handles, jaw gripping mechanism, bolt, it is to be fixed on the handle by adhesive tape one end as jaw, the other end passes the gripping mechanism groove, make the adhesive tape can be along the freely-movable of gripping mechanism groove, two handles and gripping mechanism are by bolted splice, and adhesive tape forms the closed jaw of flexibility in two handle top.After regulating jaw size, the chucking free end, the handle of holding with a firm grip just can clamping or rotational workpieces.

The utility model has the following advantages compared with the prior art: folder mouthful adjustable extent is big, because of claw is made for flexible adhesive tape, non-rigid contact, so folder degree of lip-rounding shape can change according to the shape of workpiece, and can closely paste object surface, stressed even, surface that can defective work piece, can not make workpiece deformation yet or break, therefore its target can be the workpiece of unlike materials such as metal, glass, pottery, plastics, timber, also can be used for the time usefulness of other vibration processing of clamping, its wide accommodation has very strong practicality.

Description of drawings:

Fig. 1 is an outline drawing of the present utility model.

Fig. 2 is the stereogram of the utility model outline drawing.

Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail, as Fig. 1, shown in 2, the utility model is by handle 1, handle 2, jaw 3, gripping mechanism 4, clamping bolt 5, link bolt 6 and packing ring 7, rivet 8 is formed, handle 1 is an elongate rod, front end has one section vertical elbow, there is a circular hole at the middle part, handle 2 is elongate rod, front end has one section vertical flat hook, there is circular hole at the middle part, jaw 3 usefulness adhesive tapes are made, the one head is fixed on the vertical elbow of handle 1 with rivet 8, other end free end can move by the groove of gripping mechanism 4, and gripping mechanism 4 is made up of a long U type card and clamping bolt 5, with the notch vertical plane on clamping bolt 5 is housed, can adhesive tape free end chucking is fixing, its U type card termination have with the notch vertical plane on circular hole is arranged, gripping mechanism 4 and handle 1 and handle 2 usefulness link bolts 6 and packing ring 7 are hinged, make handle 1, handle 2 and gripping mechanism 4 can freely rotate.To press from both sides earlier during use mouthful and to adjust with the size that is held workpiece when big slightly, adhesive tape encloses and tightly is held workpiece, regulate jaw again, make it the workpiece of fitting, grasp gripping mechanism 4 and handle 1 and handle 2, jaw 3 free ends are produced frictional force by jam-packed and fix, handle further clamps adhesive tape then, the jaw that adhesive tape is surrounded further dwindles, with clamping work pieces, can be when turning handle 1,2 with workpiece turn (loosening or fastening), release handle 1,2 and gripping mechanism 4, jaw magnifies, and the workpiece that is held can unclamp.

Claims

1, a kind of adjustable clamp brank, it mainly is made up of handle (1), handle (2), jaw (3), gripping mechanism (4), clamping bolt (5), link bolt (6), packing ring (7) and rivet (8); The end of jaw (3) that is characterised in that of the present utility model is fixed on the top of handgrip (1) with rivet (8), the other end is unfixing, handle (1), handle (2) and gripping mechanism (4) are hinged by screw (6) and packing ring (7), by gripping mechanism (4) and clamping bolt (5) control chucking.

2, adjustable clamp brank according to claim 1 is characterized in that described jaw (3) is to make with the more coarse adhesive tape in surface.

3, adjustable clamp brank according to claim 1 and 2, it is characterized in that described gripping mechanism (4) is to make the round bottom elongated slot with steel plate, punch on preceding end slot both sides, hinged with handle (1), (2) by bolt (6), the clamping bolt (5) of fixation adhesive tape is housed at front end place trough rim.

4, adjustable clamp brank according to claim 3 is characterized in that there are some perpendicular lines at described clamping bolt (5) middle part.