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CN2288046Y - Anti-sliding socket wrench - Google Patents

Anti-sliding socket wrench Download PDF

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Publication number
CN2288046Y
CN2288046Y CN 97201644 CN97201644U CN2288046Y CN 2288046 Y CN2288046 Y CN 2288046Y CN 97201644 CN97201644 CN 97201644 CN 97201644 U CN97201644 U CN 97201644U CN 2288046 Y CN2288046 Y CN 2288046Y
Authority
CN
China
Prior art keywords
utility
circular arc
model
inner edge
faces
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN 97201644
Other languages
Chinese (zh)
Inventor
谢智庆
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN 97201644 priority Critical patent/CN2288046Y/en
Application granted granted Critical
Publication of CN2288046Y publication Critical patent/CN2288046Y/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model relates to an anti-skid socket spanner. The traditional six working faces on the inner edge of a sleeve joints are made into three faces on which two small bulges in the shape of circular arcs are arranged and three faces on which a bulge in the shape of a circular arc or two same bulges in the shape of circular arcs or a convex short flat line is arranged at intervals. The utility model can wrench severely worn heads of nuts and screw bolts and reduce the idle sliding angle of a sleeve barrel. The utility model overcomes the defects of the prior art. The utility model has the advantages of simple structure and convenient manufacture.

Description

A kind of anti-skid sleeve spanner
A kind of anti-skid sleeve spanner, it relates to the box spanner of manual tool.
Because heavier nut or the bolt head of load because of the restriction of working space position, when common wrench can not be worked, just must adopt sleeve to come work.It has been widely used in the repair work of vehicle and agricultural machinery.When by the wearing and tearing of the wedge angle position of the nut pulled or bolt head, skidding often takes place, even cause can't turn weak point.Thereby people improve the working face of sleeve.It is changed into inwardly protruded arc surfaced by the plane.But it is also undesirable in application, and particularly more serious nut of wearing and tearing or bolt head usually form at 2 and can't overcome skidding in work.And forming idle running sliding friction α angle before fit is pulled is the defective that could work more than 10 °, as shown in Figure 1.
The purpose of this utility model is to propose to make two little circular arc projectioies on a kind of three working faces with the sleeve interval.Make linear or circular arc projection on three working faces in addition, increasing becomes a plurality of moving working face and points of pulling, and overcomes skidding and minimizing fit and pulls idle running sliding friction angle.
The utility model is realized in the following way: six working faces of jacket casing joint inner edge, center line both sides on three working faces of space, respectively make a circular arc projection symmetrically, a circular arc projection is made in addition three working face centers corresponding with it.Also can be with the center line both sides on its six working faces, each all is shaped on identical circular arc projection, perhaps makes three inner edge working faces of being separated by, and a circular arc projection is respectively made in the center line both sides, in addition three short planes of linearity that face is a projection.
The advantage that this utility model has is that it can pull the nut or the bolt of serious wear, and aligns the screw terminal that routine has been worn and torn, has reduced the preceding idle running of fit sliding friction angle, and with the less angle of pulling, has reached the effect of pulling screw.
Description of drawings:
Accompanying drawing 1, existing muff joint inner edge surface is the sectional view of arc surface
Accompanying drawing 2, the utility model inner edge surface are single and two circular arc convex cross section figure
Accompanying drawing 3, the utility model inner edge surface are single and two circular arc projection idle running slip angle schematic diagrames
Accompanying drawing 4, the utility model inner edge surface are two circular arc convex cross section figure
Accompanying drawing 5, the utility model inner edge surface is short plane and two circular arc convex cross section figure
The utility model is described in further detail in conjunction with the accompanying drawings below by embodiment:
Embodiment 1, a kind of anti-skid sleeve spanner, it is made of the handle and the muff joint of routine.In the accompanying drawing 2 muff joint 4 is made the hexagon of routine, on three working faces of six working face spaces of inner edge, the symmetrical center line both sides respectively is shaped on a little circular arc projection 41, respectively makes a little circular arc projection 42 on the middle center line on other three working faces, constitutes the sleeve inner edge surface.During work in twos the circular arc projection can pull working face or point with the normal or wearing and tearing screw terminal of being pulled forms that multiple spot contact, and reduced idle running sliding friction angle α and be about and have 1/2nd of circular-arc working face now.As shown in Figure 3.
Embodiment 2:
In accompanying drawing 4, conventional interior hexagon is also made in muff joint 4, on each face on six working faces of inner edge, all made the symmetrical center line both sides, respectively be shaped on little circular arc projection 41 forms.
Embodiment 3:
In accompanying drawing 5, with muff joint 4 and implement 1 and 2 and coexist mutually that identical at interval three working faces are two circular arc projectioies 41 on six working faces of inner edge, be the convex plane of short lines shape 43 on three working faces in addition.

Claims (3)

1, a kind of anti-skid sleeve spanner, it is made up of muff joint and handle, it is characterized in that, six working faces of jacket casing joint (4) inner edge, the both sides, center of three working faces of space respectively is shaped on a circular arc projection (41) symmetrically, center on other three working faces is shaped on a circular arc projection (42).
2, by the described a kind of anti-skid sleeve spanner of claim 1, it is characterized in that: each is shaped on identical circular arc projection (41) with center line both sides above six inner edge working faces.
3, by the described a kind of anti-skid sleeve spanner of claim 1, it is characterized in that: a circular arc projection (41) is respectively made in three inner edge working face center line both sides of space, in addition three short planes (43) of linearity that working face is a projection.
CN 97201644 1997-03-07 1997-03-07 Anti-sliding socket wrench Expired - Lifetime CN2288046Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 97201644 CN2288046Y (en) 1997-03-07 1997-03-07 Anti-sliding socket wrench

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 97201644 CN2288046Y (en) 1997-03-07 1997-03-07 Anti-sliding socket wrench

Publications (1)

Publication Number Publication Date
CN2288046Y true CN2288046Y (en) 1998-08-19

Family

ID=33923024

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 97201644 Expired - Lifetime CN2288046Y (en) 1997-03-07 1997-03-07 Anti-sliding socket wrench

Country Status (1)

Country Link
CN (1) CN2288046Y (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101332591B (en) * 2007-06-25 2010-09-29 谢智庆 Tooth-shaped structure of screwing tool
CN103358268A (en) * 2012-04-10 2013-10-23 王又民 Improved structure for meshing rotary tool
CN110856910A (en) * 2018-08-24 2020-03-03 吴国丞 Anti-skid sleeve

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101332591B (en) * 2007-06-25 2010-09-29 谢智庆 Tooth-shaped structure of screwing tool
CN103358268A (en) * 2012-04-10 2013-10-23 王又民 Improved structure for meshing rotary tool
CN103358268B (en) * 2012-04-10 2017-03-01 王又民 Improved structure for meshing rotary tool
CN110856910A (en) * 2018-08-24 2020-03-03 吴国丞 Anti-skid sleeve

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CX01 Expiry of patent term