CN2277321Y

CN2277321Y - Convenient non-skid solid wrench

Info

Publication number: CN2277321Y
Application number: CN 96237910
Authority: CN
Inventors: 梁迪
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-12-26
Filing date: 1996-12-26
Publication date: 1998-04-01
Anticipated expiration: 2006-12-26

Abstract

The utility model relates to a novel convenient skid preventing solid wrench. The utility model comprises a handle and a wrench head, wherein, the depth of the inserting opening of the wrench head forms a circular arc shape, and the entering position of the inserting opening is provided with lug bosses; a distance between the two lug bosses is larger than a distance between the two parallel surfaces of a hexagonal head. The insertion opening of the utility model, which is wide, is longer than the diagonal of the corresponding hexagonal head. The two parallel surfaces does not need aligning for insertion and exit, an inserting distance and an exiting distance are small, and operation can proceed in the dark. When force moment is applied, prisms on the surface of the two lug bosses are engaged with the two parallel surfaces of the hexagonal head. Even if the utility model is blunt because of repeated use and wearing, the functions of engagement and use are not changed. The utility model which uses the same material and production process as a traditional solid wrench are more convenient and more reliable for use than that of the traditional solid wrench.

Description

The anti-skidding fork spanner of New-type instant

The utility model belongs to the instrument class, belongs to the spanner class particularly.

Tradition fork spanner its socket be "

" shape, transmit moment of torsion by spanner socket two parallel surfaces, choke two diagonal angles of six square toes and carry out.Usually the plastic deformation owing to hexagonal causes fillet to skid, and is screwed onto a certain angle when limited, must extract out, swings an angle, after aiming at two parallel surfaces again and inserting, could continue action, the use inconvenience.

The purpose of this utility model is the problem that exists at conventional spanner, design a kind of insertion withdraw from needn't aim at two parallel surfaces, insert convenient, apply at every turn need not withdraw from behind the torsion heavily slotting, the anti-skidding fork spanner of New-type instant that the function of nipping after the wearing and tearing is constant.

The implementation of the utility model purpose is, the anti-skidding fork spanner of New-type instant comprises driving end 3, handle 4, and driving end has socket.The socket depths of driving end 3 is a circular arc, and going into the place has spacing between boss 1, two boss greater than the spacing between 2 liang of parallel surfaces of six square toes.The angle theta of the center line of pinch bar 4 and socket centreline space is 18 ° or 30 °.

The utility model is described with reference to the accompanying drawings.

Fig. 1 six square toes insert the state diagram of the utility model socket

Contact condition figure during the twisting of Fig. 2 the utility model

With reference to accompanying drawing, the utility model is gone into the place has the spacing between boss 1, two boss to need greater than the spacing between 2 liang of parallel surfaces of six square toes, makes spanner when applying moment and reverse, and contacts the form that can be Fig. 2 between boss convex surface and parallel surface.

The center line of tradition fork spanner handle 4 and the angle theta of socket centreline space are 30 °.The utility model angle theta except that can be designed to 30 ° and, also can be designed to 18 ° or low-angle more, be applicable to the last running of littler spacing distance, make the user can remove the spanner at the different θ of choose reasonable angle according to custom or condition.

It is very wide that the utility model inserts mouth, and than the diagonal angle line length of corresponding six square toes, two convex surfaces directly contact stressed with two facets.Adopt this structure, insert when withdrawing from continuous action, needn't aim at two parallel surfaces, and insert and withdraw from, also can use freely in blind person or the dark apart from little, very convenient.

The utility model is when applying moment, all the time bite six square toes, two parallel surfaces by the corner angle of two boss face, adopt this structure to apply torsion on the one hand at every turn after, needn't wholely withdraw from, only two contact angles shown in Figure 2 a place need be left slightly, just PROPEL can be continued; Make stress point not at the diagonal angle on the other hand, in the corner of the wide boss face of about 1mm, even use the wearing and tearing rust repeatedly, become little fillet, its function of nipping is constant, serviceability is constant.

The utility model material therefor and manufacturing process are the same with traditional fork spanner, but all producing in serial form of unit that possess the traditional fork spanner of the manufacturing.

Claims

1, the anti-skidding fork spanner of New-type instant, comprise that driving end (3), handle (4), driving end have socket, the socket depths that it is characterized in that driving end (3) is a circular arc, go into the place boss (1) is arranged, spacing between two boss is greater than the spacing between six square toes (2) two parallel surfaces, and the center line of pinch bar (4) and the angle theta of socket centreline space are 18 ° or 30 °.