CN202462295U

CN202462295U - Return wrench with opening

Info

Publication number: CN202462295U
Application number: CN2012200778245U
Authority: CN
Inventors: 赵晓江; 唐继松
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-02-25
Filing date: 2012-02-25
Publication date: 2012-10-03
Anticipated expiration: 2022-02-25

Abstract

The utility model provides a return wrench with an opening, and the return wrench can be used for solving the problem that return wrenches are not convenient to use by alternating two hands in small spaces. The return wrench with the opening comprises a head part and a handle, wherein the head part comprises an inner ring, an outer ring, a ratchet wheel and dovetail grooves. The ratchet wheel is arranged on the inner ring, four dovetail grooves and matched spring pieces are evenly distributed on the outer ring, the spring pieces are compressed and put into the dovetail grooves, and the inner ring is just meshed with the outer ring. The width of the spring pieces is the same as that of the ratchet wheel, the spring pieces opens and extends out of the dovetail grooves to be in friction with the ratchet wheel, and the ratchet wheel is set to rotate in a one-way mode. The return wrench with the opening can be used in a return mode, is especially suitable for plumbers to use, and is simple in structure, cheap in price and easy to maintain and popularize.

Description

A kind of opening is replied spanner

Technical field

The utility model relates to daily life tools, particularly replys the spanner technical field.

Background technology

At present, back-up wrench commonly used when small space uses, need constantly take off or the right-hand man is used alternatingly, and very trouble is generally replied spanner, complex structure, and the quality religion is heavy, costs an arm and a leg, and inconvenience is safeguarded.And the general closed spanner of replying only is applicable in the time of can packing into nut and uses, and is unwell to fastening that pipeline tightens up a screw.

Summary of the invention

The design's purpose is to be used alternatingly the problem of replying the spanner inconvenience in order to solve at small space two hands, and a kind of opening that provides is replied spanner.

The design's technical scheme is: use single direction ratchet and a plurality of spring leaf make the unidirectional slip of the design and do not come off.The design comprises head and handle.Head comprises interior ring, outer shroud, ratchet, dovetail groove; In being located at, ratchet on the ring, is evenly distributed with four dovetail grooves and adaptive spring leaf on the outer shroud, with putting into dovetail groove after the compression of said spring leaf, because elastic force opens and stretches out dovetail groove and can not come off.In the ring size just with the outer shroud interlock; The spring leaf width is identical with the ratchet width, and spring leaf opens and stretches out dovetail groove and ratchet friction, and ratchet is made as one-directional rotation, and whenever make has three spring leafs to contact with ratchet, and ring and outer shroud do not rock in guaranteeing, do not come off; The design's material is iron or carbide alloy.

The design's beneficial effect is: can reply use, be particularly suitable for small space and use, avoid two hands alternately, the people who is particularly suitable for pipeline construction uses, and it is simple in structure, and low price is easy to use, is easy to safeguard, is easy to promote.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further specified.

Fig. 1 is the design's a structural representation.

Fig. 2 is the be hit by a bullet sketch map of reed and dovetail groove of the design.

Fig. 3 is the ratchet structure sketch map on the interior ring among the design.

Among the figure, 1. interior ring, 2. outer shroud, 3. spring leaf, 4. ratchet, 5. handle, 6. dovetail groove.

The specific embodiment

Like Fig. 1-shown in Figure 3, a kind of opening of present embodiment is replied spanner, is particularly suitable for small space and uses; Avoid two hands alternately; People like pipeline construction uses, and the design is made up of head and handle 5, ring 1, outer shroud 2, spring leaf 3, ratchet 4, dovetail groove 6 in head comprises.Four dovetail grooves 6 that evenly distribute on the outer shroud are after putting into dovetail groove 6 after spring leaf 3 compressions, because elastic force opens and stretches out dovetail groove 6 and can not come off; In the ring 1 size just with outer shroud 2 interlocks, on ratchet 4 is arranged.Spring leaf 3 opens and stretches out dovetail groove 6 and ratchet 4 frictions, keeps one-directional rotation.Spring leaf 3 width are identical with ratchet 4 width, and evenly distribute four, and whenever make has three spring leafs 3 to contact with ratchet 4, and ring 1 does not rock with outer shroud 2 in guaranteeing, does not come off; The design's material is iron or carbide alloy.

Claims

1. an opening is replied spanner, is made up of head and handle, and it is characterized in that: head comprises interior ring, outer shroud, ratchet, dovetail groove; On the ring, be evenly distributed with four dovetail grooves and adaptive spring leaf on the outer shroud in ratchet is located at, with putting into dovetail groove after the compression of said spring leaf, interior ring size just with the outer shroud interlock.

2. reply spanner according to the described a kind of opening of claim 1, it is characterized in that: the spring leaf width is identical with the ratchet width; Spring leaf opens and stretches out dovetail groove and ratchet friction, and ratchet is made as one-directional rotation.

3. reply spanner according to the described a kind of opening of claim 1, it is characterized in that: the design's material is iron or carbide alloy.