CN202528094U

CN202528094U - Labor-saving wrench

Info

Publication number: CN202528094U
Application number: CN2012201994218U
Authority: CN
Inventors: 刘明亮; 何义良; 李树平; 梁河雷; 张留岗; 王继双; 李卫红
Original assignee: Hengshui Power Supply Co
Current assignee: State Grid Corp of China SGCC; State Grid Hebei Electric Power Co Ltd; Hengshui Power Supply Co
Priority date: 2012-05-07
Filing date: 2012-05-07
Publication date: 2012-11-14
Anticipated expiration: 2022-05-07

Abstract

The utility model belongs to the technical field of wrenches, and discloses a labor-saving wrench. The labor-saving wrench is mainly technically characterized by comprising a wrench body with a wrench head and a handle, wherein a sleeve is arranged on the handle and can slide along the handle. When in normal construction and carrying, the sleeve is pushed in front of the handle, and the handle is almost completely inserted into the sleeve, is more convenient to use and carry; and when encountered with corroded screw or slightly bigger screw, the sleeve is pulled back, the acting force arm and the wrench torsion are increased, and the application range is wider.

Description

Labour-saving spanner

Technical field

The utility model belongs to the spanner technical field, relates to labour-saving spanner concretely.

Background technology

In power equipment installation, maintenance and power circuit maintenance process, spanner is one of indispensable instrument, and when situation such as corrosion occurring when bolt, dismounting is difficulty very, needs the spanner of bigger moment, and common wrench is difficult to realize.So just need be equipped with the more spanner of polytypic, not only increase the instrument cost, and carry also very inconveniently, especially on the tower bar, during work high above the ground, carry the more outstanding of inconvenient defective performance.

The utility model content

The technical problem that the utility model solves just provides a kind of carrying and labour-saving spanner easy to use, applied range.

For solving the problems of the technologies described above, the technical scheme that the utility model proposes is: comprise the wrench body that has driving end and handle, said handle is provided with sleeve pipe, and this sleeve pipe can slide along said handle.

Its additional technical feature is:

Be provided with the anticreep catch at described handle near a terminal side;

Gum cover outside said outside of sleeve is enclosed with insulation.

The labour-saving spanner that the utility model provides, comparing with prior art has the following advantages: one of which, owing to comprise the wrench body that has driving end and handle; Said handle is provided with sleeve pipe, and this sleeve pipe can slide along said handle, at normal construction when carrying; Push sleeve pipe to handle the place ahead, handle almost all inserts in the sleeve pipe, uses and carries convenient; When screw rod that runs into corrosion or bigger a little screw rod, sleeve pipe is pulled back, acting force arm increases; The torsion of spanner increases, and like this, range of application is wider; Its two owing to be provided with the anticreep catch near a terminal side, in the sleeve pipe backhitch process, prevented that sleeve pipe from deviating from handle at described handle; Its three since outside said outside of sleeve is enclosed with insulation gum cover, not only can play certain insulating effect, and in winter during outdoor work, operating personnel's hand does not contact with metal sleeve directly, prevents that palm is cold excessively.

Description of drawings

Structural representation when Fig. 1 carries for labour-saving spanner;

Fig. 2 is the structural representation after the sleeve pipe of labour-saving spanner is pulled out;

Fig. 3 pulls out the profile at back handle and sleeve pipe place for sleeve pipe.

The specific embodiment

Further specify below in conjunction with the structure of accompanying drawing the labour-saving spanner that the utility model proposed.

Like Fig. 1, Fig. 2 and shown in Figure 3, its structure comprises the wrench body 3 that has driving end 1 and handle 2, and handle 2 is provided with sleeve pipe 4, and this sleeve pipe 4 can slide along handle 2.When carrying, push sleeve pipe 4 the place ahead of handle 2 at normal construction, handle 2 almost all inserts in the sleeve pipe 4; Use and carry conveniently, when screw rod that runs into corrosion or bigger a little screw rod, sleeve pipe 4 is pulled back; Acting force arm increases; The torsion of spanner increases, and like this, range of application is wider.

Be provided with anticreep catch 5 at handle 2 near a terminal side, in sleeve pipe 4 backhitch process, prevented that sleeve pipe 4 from deviating from handle 2, use convenient.

Gum cover 6 outside sleeve pipe 4 outsides are enclosed with insulation not only can play certain insulating effect, and in winter during outdoor work, operating personnel's hand does not directly contact with metal sleeve 4, prevents that palm is cold excessively.

The protection domain of the utility model not only is confined to the foregoing description, as long as structure is identical with the utility model labour-saving spanner structure, just drops on the scope of the utility model protection.

Claims

1. labour-saving spanner comprises the wrench body that has driving end and handle, it is characterized by: said handle is provided with sleeve pipe, and this sleeve pipe can slide along said handle.

2. labour-saving spanner according to claim 1 is characterized in that: be provided with the anticreep catch at described handle near a terminal side.

3. labour-saving spanner according to claim 1 and 2 is characterized in that: gum cover outside said outside of sleeve is enclosed with insulation.