CN2030529U

CN2030529U - Adjustable spanner

Info

Publication number: CN2030529U
Application number: CN 88205811
Authority: CN
Inventors: 白崇岫
Original assignee: Individual
Current assignee: Individual
Priority date: 1988-05-23
Filing date: 1988-05-23
Publication date: 1989-01-11

Abstract

The utility model relates to a manual tool, particularly an adjustable spanner used for disassembling and assembling the screw connecting component of a mechanism. The adjustable spanner is characterized in that the opening of the adjustable spanner is in the shape of a hexagon or an inner tooth circle. The outer circumference is an axle neck and is provided with a spanner wheel whose entirety with a ratchet, a frictional surface, or a trapezoid tooth is divided into two half bodies. The two half bodies are respectively arranged on a movable body and a main body. The main body is provided with a pawl, an eccentric segment plate or a pawl body. A swing handle drags the spanner wheel to rotate in single way or in two ways. The utility model has the advantages of large contact area of the opening of the adjustable spanner and component parts, flexible, quick and reliable work, and simple structure without damaging the working contact surface of the component parts.

Description

Adjustable spanner

The utility model relates to a kind of hand-operated tools, particularly the manual wrench of using for the dismounting of mechanical whorl connector of the survivor of a murder attempt.

At present, adjustable adjustable wrench and pipe wrench instrument are of a great variety, and the instrument jaw only has two contact-making surfaces with other part of quilt tight (pine) in general, and this face easily is damaged; And need constantly to adjust the instrument jaw in the operation process and contact the different contact-making surface of other part, troublesome poeration, inefficiency.

For addressing this problem, common way is to adopt the ratchet-type spanner.But its jaw is fixing global shape, and in some cases, as connecting two oil (water) pipe joint that is contained in respectively on the body, loading nut etc. just can't be implemented between slit, and application is restricted.

The purpose of this utility model is that a kind of improved survivor of a murder attempt will be provided manual wrench, and it can increase jaw and the tight contact area of part in addition of quilt effectively, enlarges range of application, sharp work.

The purpose of this utility model is achieved in that endoporus (being jaw) is hexagon or interior tooth circle, and excircle is axle journal and is shaped on ratchet or the integral body of rubbing surface or stepped tooth is split up into the pincers wheel of two halfbodies, is sub-packed in live body and body.The part of two bodies is hinged and spacing, and another part is the closing device of locking two bodies of handgrip, ring, pin formation.Body is the side plate that has bearing half hole in the both sides packing of Y shape handle, installs bearing pin between plate, flexibly connects corresponding ratchet or eccentric segment plate, drags the unidirectional rotation of pincers wheel; Also can adorn the corpus unguis that is shaped on guide groove between plate, corpus unguis can move along alignment pin, and an end shock mount, and the other end is the pawl head that the inclined-plane is arranged, face directly, drags the two-way rotation of terraced tooth pincers wheel.Live body is formed by connecting by swing link that bearing half hole is arranged and Ω shape plate.

The utility model jaw keeps other not damage by the contact-making surface of part with big by tight other part contact area; Operating flexibility is reliably quick, and the scope of application is extensive; Simple in structure, be easy to promote.

The concrete structure of utility model is provided by following examples and accompanying drawing thereof.

Fig. 1 is the manual wrench pie graph of the survivor of a murder attempt that is a kind of ratchet (pawl) driving of partly opening shape according to the live body that the utility model proposes;

Fig. 2 is the structure chart that another kind of friction-type drives;

Fig. 3 is the cutaway view of bi-directional drive pincers wheel;

Fig. 4 is I-I cutaway view of Fig. 3.

Below in conjunction with details and the working condition of accompanying drawing detailed description according to the concrete device that the utility model proposes.

This device as shown in Figure 1, the endoporus (being jaw) of selecting steel to make is hexagon, excircle is the pincers wheel 1 that integral body that axle journal and middle part are shaped on ratchet is split up into two halfbodies, is loaded on body 2 and live body 3 respectively.Body is a tabular handle 4 of Y shape, its part grips for the operator, the two sides of another part screw 5, packing is shaped on bearing half hole of supporting pincers wheel axle journal and the side plate 6 of screwing through hole, installs bearing pin 7 between plate, flexibly connects ratchet 8, also adorn the spring 9 that can press ratchet on the plate, its end part has the opening projection, and another part is a projection with holes, with this hole pin 10 hinged live bodies.Live body is with bearing half hole that is shaped on supporting pincers wheel axle journal and two blocks of swing links 11 of screwing through hole, clip Ω shape plate 12, this plate part is porose, flexibly connects the end that waist has the handgrip 14 that enclosed shape ring 13 passes by pin, with the opening projection of body constitute can locking two bodies closing device; What another part hinged body, and restriction certainly was maximum opens mouth in 90 °.

During operation, open live body (containing pincers wheel halfbody), hexagon jaw (behind the closed live body) cover of pincers wheel is blocked threaded connector, as hex nut, ring places in the opening of body openings projection, lifts handgrip counterclockwise, and locking live body, body are whole.Gripping handle is swung clockwise, and ratchet slides along tooth top; Backswing, ratchet heads on ratchet, continues swing and just can drag the rotation of pincers wheel, and the reciprocally swinging handle just can make screw element be rotated counterclockwise within the specific limits.If with this device upset half cycle cover card, screw element is turned clockwise, also be called unidirectional rotation.

The another kind of embodiment of this device is referring to Fig. 2, endoporus is interior tooth circle, it is the pincers wheel 15 that the integral body of rubbing surface is split up into two halfbodies that excircle is made axle journal and middle part, bearing pin 7 flexibly connects eccentric segment plate 16, because the two spacing is fixed, so during clockwise swing handle, the cambered surface of fanning strip slides along pincers wheel rubbing surface; Backswing, cambered surface and rubbing surface friction wedging drag the pincers wheel and do one-directional rotation.

This device also has a kind of embodiment shown in Fig. 3～4.Endoporus is hexagon, interior tooth circle or other similar shapes, the integral body that excircle is made axle journal and is shaped on stepped tooth is split up into the pincers wheel 17 of two halfbodies, between handle 4 and side plate 6, dress has the cylindrical corpus unguis 18 that section is square guide groove, be that circular alignment pin 19, the corpus unguis that is packed on handle or the side plate can move axially in the groove, compression spring 20 is housed on the step of one end, and the other end is that the square pawl head that a pair of correspondence is oblique, face directly is arranged.When clockwise swing handle, the inclined-plane of pawl head slides along trapezoidal tooth top, the spring pressurized; During backswing, spring restPoses, and facing directly of pawl head sticks flank, drags to clamp to take turns to do to be rotated counterclockwise.If when requiring the reverse rotation of pincers wheel, press corpus unguis by hand, the compression spring, make guide groove deviate from alignment pin, and rotate the corpus unguis half cycle, remove external force, alignment pin places again among the guide groove after the positioning, impose aforementioned in rightabout swing handle, screw element is done turned clockwise, so can be called the bi-directional drive of pincers wheels.

Claims

1, a kind of hand-operated tools, the manual wrench of the survivor of a murder attempt that particularly supplies the dismounting of mechanical whorl connector to use, by jaw, ratchet, ratchet, organization, it is characterized in that endoporus (being jaw) is hexagon or interior tooth circle, periphery circle is for axle journal and to be shaped on can be ratchet, it can be rubbing surface, it also can be the pincers wheel that the integral body of stepped tooth is split up into two halfbodies, be sub-packed in live body and body, the part of two bodies is hinged and spacing, another part is by handgrip, ring, the pin that pin constitutes closes the closing device of two bodies, body is the side plate that has bearing half hole in the both sides packing of Y shape handle, install bearing pin between plate, what flexibly connect correspondence can be ratchet, can be the eccentric segment plate, drag the unidirectional rotation of pincers wheel, also can adorn the corpus unguis that is shaped on guide groove between plate, corpus unguis moves along alignment pin, and an end shock mount, the other end is for having the inclined-plane, the pawl head of facing directly, drag the two-way rotation of stepped tooth pincers wheel, live body is formed by connecting by swing link with bearing half hole and Ω shape plate.