CN202344440U

CN202344440U - Novel universal wrench

Info

Publication number: CN202344440U
Application number: CN2011203669940U
Authority: CN
Inventors: 郭鹏程
Original assignee: Shaanxi University of Technology
Current assignee: Shaanxi University of Technology
Priority date: 2011-09-26
Filing date: 2011-09-26
Publication date: 2012-07-25
Anticipated expiration: 2021-09-26

Abstract

The utility model relates to a novel universal wrench, which is used for assembling and disassembling external hexagonal bolts and nuts of various specifications. The novel universal wrench comprises a handle (1), a curve type inner frame (2), two cover plates (3), six pins (4), six movable blocks (5) and six torsion springs, wherein the large end of the handle (1) is fixedly connected with the curve type inner frame (2); the two cover plates (3) are arranged on two end surfaces of the curve type inner frame; the two cover plates form a shape of a mouse cage by connecting the six pins (4); and all the pins are provided with a movable block (5) respectively. When the bolts or the nuts are screwed tightly, the movable blocks (5) can rotate around the pins (4) connected with one another through the hole of the curve type inner frame, so that clamping nuts or bolt heads are contracted by inner side edges. The novel universal wrench is not required to be adjusted in the using process, can automatically adapt to the assembly and disassembly of the external hexagonal bolts and nuts of various specifications, and greatly contributes to improvement on the working efficiency of an operator and reduction in labor intensity.

Description

Novel monkey wrench

Technical field

The utility model belongs to machanical fastener handling instrument technical field, relates to a kind of novel monkey wrench, is used for outer six square bolts of plurality of specifications and removing and installing of nut.

Background technology

Screw bolt and nut is as a kind of general mechanical links, and the application in engineering goods is very extensive.Installation and removal for screw bolt and nut are a higher job of operator's routine work medium frequency.At present, the instrument of installation and removal that is used for outer six square bolts and nut is a lot, and common have back-up wrench, shfting wrench and a box spanner etc.The characteristics of back-up wrench are that a kind of screw bolt and nut of specification must have a spanner.Shfting wrench is applicable to the dismounting of plurality of specifications screw bolt and nut, but in use must carry out manual adjustments according to the specification of screw bolt and nut.Box spanner is applicable to the dismounting of plurality of specifications screw bolt and nut, but in use must change the sleeve of its front end according to the specification of screw bolt and nut.For the mounting or dismounting of the screw bolt and nut that adapts to different size, reduce the specification quantity of spanner self, reduce in the use to the adjustment of spanner and the replacing of spanner part a kind of novel monkey wrench of ad hoc meter.

Summary of the invention

The utility model provides a kind of novel monkey wrench, solved existing spanner specification too many with use in the problem of frequent adjustment or replacing spanner part, very favourable for the labour intensity that alleviates the operator.

The technical scheme that the utility model adopted is that a kind of novel monkey wrench comprises a handle (1), a shaped form inside casing (2), two cover plates (3), six pins (4), six movable blocks (5), six roots of sensation torsion spring (6).

The little head end of handle (1) is hand-held shank, and another big end is the middle cylinder that endoporus is arranged; The center fixed of endoporus is connected with shaped form inside casing (2), and a cover plate (3) is respectively installed at the two ends of endoporus.

Shaped form inside casing (2) is one section cylinder with introversion face, and it is six sections curves that the end of introversion face cuts type, is sealing and connects, and six sections curves are formed by the external cylindrical surface axis array of same section curve around shaped form inside casing (2).

Cover plate (3) is circular, and six circular holes are arranged on it, and with radius six five equilibriums, the two ends of six pins (4) are riveted on six circular holes on two cover plates respectively, are the mouse cage shape after the installation along the circumferencial direction of annulus for six circular holes; The outside diameter of cover plate holds the big bore dia of shoulder hole to become matched in clearance greatly with handle (1).

Section type one end of movable block (5) is little, is one section circular arc; The other end is big, is made up of two sections straight lines and one section circular curve; Small end has small one and large one two circular holes, and macropore is installed pin (4), and aperture is installed torsion spring (6); Six movable blocks along the circumferential direction are connected the centre of six pins (4) in order.

The beneficial effect of the utility model is to have reduced when adopting outer six square bolts of traditional spanner mounting or dismounting with nut, the specification quantity of use spanner, the screw bolt and nut that same spanner can the dismounting different size.In use without the manual adjustment spanner, also need not change the parts of spanner, for the operating efficiency that improves the operative employee, it is very favourable to reduce labour intensity.

Description of drawings

Fig. 1 is novel monkey wrench structure chart;

Fig. 2 is novel monkey wrench vertical view;

Fig. 3 is novel monkey wrench A-A cutaway view;

Fig. 4 is the extreme position sketch map of novel monkey wrench movable block.

Among the figure, 1. handle, 2. shaped form inside casing, 3. cover plate, 4. pin, 5. movable block, 6. torsion spring.

The specific embodiment

A kind of novel monkey wrench comprises a handle (1), a shaped form inside casing (2), two cover plates (3), six pins (4), six movable blocks (5), six roots of sensation torsion spring.The big end of handle (1) is a cylinder that endoporus is arranged, and the centre of depth direction is connecting firmly shaped form inside casing (2) in the cylinder endoporus, at two end faces of shaped form inside casing two cover plates (3) is arranged.Two cover plates all are equipped with a movable block (5) by six pins (4) connection formation mouse cage shape on each pin, the big end of each movable block are pressed to the inner surface of shaped form inside casing (2) by torsion spring (6).

Under the nature, under the effect of torsion spring (6), the big end of each movable block (5) is pressed to the inner surface of shaped form inside casing (2), the solid line position that the residing position of each movable block is as shown in Figure 4.Formed a hexagonal endoporus by the interior lateral edges of each movable block.

Tighting a bolt or during nut; With outer six square bolts or nut sleeve in interior six side's endoporus of forming by six movable blocks of novel monkey wrench; The little head end of counter clockwise direction turning handle (1) as shown in Figure 2, then the shaped form inside casing (2) in the handle stub end rotates counterclockwise with handle, and shaped form inside casing hole can make movable block (5) rotate around connecting pin (4) separately; The interior lateral edges of movable block is shunk binding nut or bolt head simultaneously.

When demounting bolt or nut; Earlier with 180 ° of spanner upsets; With outer six square bolts or nut sleeve in interior six side's endoporus of forming by six movable blocks of novel monkey wrench, the backward rotation spanner, then six movable blocks in the spanner also are to rotate and clamp around self connection pin.

Claims

1. novel monkey wrench, its characteristic comprises a handle (1), a shaped form inside casing (2), two cover plates (3), six pins (4), six movable blocks (5), six roots of sensation torsion spring (6); The little head end of handle (1) is hand-held shank, and another big end is the middle cylinder that endoporus is arranged; The center fixed of endoporus is connected with shaped form inside casing (2), and a cover plate (3) is respectively installed at the two ends of endoporus.

2. novel monkey wrench according to claim 1; It is characterized in that shaped form inside casing (2) is one section cylinder with introversion face; It is six sections curves that the end of introversion face cuts type, is sealing and connects, and six sections curves are formed by the external cylindrical surface axis array of same section curve around shaped form inside casing (2).

3. novel monkey wrench according to claim 1; It is characterized in that cover plate (3) is circular, six circular holes arranged on it, six circular holes along the circumferencial direction of annulus with radius six five equilibriums; The two ends of six pins (4) are riveted on six circular holes on two cover plates respectively, are the mouse cage shape after the installation; The outside diameter of cover plate holds the big bore dia of shoulder hole to become matched in clearance greatly with handle (1).

4. novel monkey wrench according to claim 1 is characterized in that section type one end of movable block (5) is little, is one section circular arc; The other end is big, is made up of two sections straight lines and one section circular curve; Small end has small one and large one two circular holes, and macropore is installed pin (4), and aperture is installed torsion spring (6); Six movable blocks along the circumferential direction are connected the centre of six pins (4) in order.