CN201009207Y

CN201009207Y - Screwdriver no-grinding palm center

Info

Publication number: CN201009207Y
Application number: CNU2007200113486U
Authority: CN
Inventors: 周晓非
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-03-28
Filing date: 2007-03-28
Publication date: 2008-01-23
Anticipated expiration: 2017-03-28

Abstract

The utility model provides a screwdriver which does not grind the palm. The technical problem to solve is that: a current manual screwdriver comprises a handle and a knife bar which fit immovably; when the screwdriver is rotated, the end of the handle is leaned against the palm, then the handle and the palm will move relatively, and friction is going to be generated, thereby the palm is grinded. The main characteristics of the utility model are that: a handle comprises a handle cap and a handle body; the handle body and a knife bar fit immovably; the handle cap is arranged on the end of the handle body; the handle cap body and the knife bar fit movably. The utility model is used to assemble and unassemble screws and the palm will not be hurt during assembling and unassembling.

Description

Do not grind the screwdriver of the centre of the palm

Technical field

The utility model relates to a kind of manual screw cutter.

Background technology

Present manual screw cutter is made up of handle and knife bar, and the two is stationary fit.When being screwed into screw, need holding handle and exert oneself downwards and drive screwdriver to rotate and adorn screw.Screwdriver when rotated, handle end withstands on the centre of the palm, handle and the centre of the palm produce relative motion, and then produce frictional force, the centre of the palm that can fray, pain even redness can appear in the centre of the palm when serious.

Summary of the invention

At the deficiencies in the prior art, the purpose of this utility model is to provide a kind of screwdriver that does not grind the centre of the palm that can avoid above-mentioned deficiency.

The purpose of this utility model is achieved in that it is made up of handle and knife bar, and it is characterized in that: handle is made up of handle cap and handle body, and handle body and knife bar are stationary fit, and handle cap is positioned at the end of handle body, and handle cap body and knife bar are for movingly.When the turn of the screw was followed closely, the centre of the palm was to the handle cap and the screwdriver application of force like this, and the frictional force that produces between the centre of the palm and the handle cap makes the centre of the palm not have relative motion to handle cap greater than the frictional force that produces between handle cap body and the knife bar, and handle cap can not rub to the centre of the palm.

The utility model is compared with the prior art scheme, and it does not damage the centre of the palm.

Description of drawings

Further specify the utility model below in conjunction with accompanying drawing.

Accompanying drawing is a schematic diagram of the present utility model.

The specific embodiment

Handle is made up of handle cap 1 and handle body 4, handle body and knife bar 3 are stationary fit, handle cap is positioned at the end of handle body, handle cap body and knife bar are for movingly, the upper end that said structure movingly is a knife bar is spherical crown or hemispherical 2, handle cap forms movingly with shape and the knife bar upper end with spherical crown or hemispherical compensation, and is gapped between handle cap and the handle body.When the turn of the screw was followed closely, the centre of the palm was to the handle cap and the screwdriver application of force like this, and the frictional force that produces between the centre of the palm and the handle cap makes the centre of the palm not have relative motion to handle cap greater than the frictional force that produces between handle cap body and the knife bar, and handle cap can not rub to the centre of the palm.

Claims

1. screwdriver that does not grind the centre of the palm, it is made up of handle and knife bar, it is characterized in that: handle is made up of handle cap and handle body, and handle body and knife bar are stationary fit, and handle cap is positioned at the end of handle body, and handle cap body and knife bar are for movingly.

2. according to the described screwdriver that does not grind the centre of the palm of claim 1, it is characterized in that: said handle cap body and knife bar for structure movingly are, the upper end of knife bar is spherical crown or hemispherical, handle cap forms movingly with shape and the knife bar upper end with spherical crown or hemispherical compensation, and is gapped between handle cap and the handle body.