CN2174299Y

CN2174299Y - Large force moment screw-driver bit

Info

Publication number: CN2174299Y
Application number: CN 93213485
Authority: CN
Inventors: 崔国士
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-05-17
Filing date: 1993-05-17
Publication date: 1994-08-17
Anticipated expiration: 2003-05-17

Abstract

The utility model relates to a hand tool, which particularly relates to a large force moment screwdriver. The utility model mainly comprises a tool bar and a handle. The utility model is characterized in that the tail part of the handle is provided with a boosting handle which is combined with the tool bar. The utility model has the advantages that under the same action of external force, the utility model can generate bigger rotary force than that of the common screwdriver, and the utility model with labor saving is much lighter and handier for using.

Description

Large force moment screw-driver bit

The utility model relates to a kind of hand tools, relates to a kind of big moment screwdriver specifically, and it mainly comprises knife bar and handle two parts.

Screwdriver be people work and daily life in often use a kind of extremely common and by epochmaking hand tools.The part but present widely used screwdriver in use also comes with some shortcomings, for example: when some object of installation or removal, because the handle of existing screwdriver is more tiny, do not use power, and screw can not be tightened or pulls down, even since firmly excessive, and knife bar and handle are broken away from.

The purpose of this utility model provides a kind of big moment screwdriver that has force application handle with regard to being to overcome above-mentioned weak point of the prior art.

The purpose of this utility model can adopt following measure to realize:

The big moment screwdriver of the utility model mainly comprises knife bar and handle two parts, the afterbody of handle be provided with one tie mutually with knife bar and force application handle.

Knife bar in the utility model and force application handle can be fixed together, also force application handle can be combined by multiedge cylinder and the knife bar that the knife bar afterbody processes, or by the key ways of connecting force application handle and knife bar are linked together, make it to become dismountable version.

Advantage of the present utility model is: under the effect of same external force, can produce the revolving force bigger than normal screws cutter, use more lightly laborsaving.

The drawing of accompanying drawing is described as follows:

Fig. 1 is a front view of the present utility model.

Fig. 2 is the vertical view of Fig. 1.

Fig. 3 is that the utility model knife bar afterbody is a kind of embodiment of tri-prismoid structure.

Fig. 4 is that the utility model knife bar afterbody is a kind of embodiment of hexagonal prism structure.

The utility model is done with detailed description below with reference to embodiment (accompanying drawing):

As shown in Figure 1 and Figure 2, the big moment screwdriver of the utility model mainly comprises knife bar (3) and handle (2) two parts, the afterbody of hand bright (2) be provided with one tie mutually with knife bar (3) and force application handle (1).Force application handle (1) combines by four prisms cylinder and the knife bar that knife bar (3) afterbody processes, and makes it to become dismountable version.

When using the screwdriver demolition, installation screw of said structure form, screw for easy demolition, installation can install force application handle additional, if when being used for demolition, installation and being difficult for the screw of demolition, installation, only need the bright afterbody that is sleeved on screw driver handle of reinforcing can be played the effect that strengthens moment, make the lightly laborsaving of demolition, installation work change.

Claims

1, the utility model relates to a kind of hand tools, relates to a kind of big moment screwdriver specifically, and it mainly comprises knife bar (3) and handle (2) two parts, it is characterized in that: the afterbody of handle (2) be provided with one tie mutually with knife bar (3) and force application handle (1).

2, big moment screwdriver according to claim 1 is characterized in that: knife bar (3) is fixed together with force application handle (1).

3, big moment screwdriver according to claim 1 is characterized in that: force application handle (1) combines by multiedge cylinder and the knife bar that knife bar (3) afterbody processes.