CN201102218Y

CN201102218Y - Screwdriver

Info

Publication number: CN201102218Y
Application number: CNU2007200509106U
Authority: CN
Inventors: 聂庆云
Original assignee: Mitac Computer Shunde Ltd
Current assignee: Mitac Computer Shunde Ltd; Shunda Computer Factory Co Ltd
Priority date: 2007-04-28
Filing date: 2007-04-28
Publication date: 2008-08-20
Anticipated expiration: 2017-04-28

Abstract

The utility model discloses a screwdriver, comprising a screwdriver arm and a bit; wherein the bit is arranged on the end of the screwdriver arm; the screwdriver arm comprises a first arm, a second arm and a third arm; both ends of the second arm, one end of the first arm and one end of the third arm are respectively machined into a gearwheel-like shape; and the gearwheel-shaped ends of the first arm and the third arm are respectively interlocked with the gearwheel-shaped end of the second arm to rotate; the first arm is rotated to make the second arm rotate so as to drive the third arm to rotate, which realizes the rotation of the bit; and a fixed sleeve is respectively arranged on a position in which the first arm, the second arm and the third arm are interlocked mutually in order to integrate the first arm, the second arm and the third arm into a whole. Through the above-mentioned structure, an operator can still disassemble and assemble in a situation that the space is not enough for a hand to dip into without dismantling a case or a part interfering with the disassembly and assembly; the screwdriver has the advantages of easy implementation, thereby having large utility value.

Description

Screwdriver

Technical field

The utility model relates to a kind of hand-operated tools, particularly a kind of portable novel screwdriver of turning handle operation.

Background technology

At present, in PC, server, particularly the sort of three quilts hinder, the machine of an opening or equipment, a slice platelet of installing in its inside of dismounting if desired, perhaps when wherein a certain screw confirmed, adopt is that CN1039550, application number are the screwdriver of 88104474.1 type assembling structures as being similar to Chinese patent disclosed publication number in 14 days February nineteen ninety at present, then need above-mentioned obstacle is partly carried out dismounting, could carry out the dismounting action to screw to be confirmed or platelet then, this type of screwdriver is not used in the use of small space.

Chinese patent disclosed publication number on April 30th, 2003 is CN2547463, the patent No. is the portable crank screwdriver described in 02214520.6, this screwdriver is that long swing arm of unequal arm and the cross blade unification font blade that is positioned at the swing arm two ends are formed for the crooked two parts that met at right angles by center line, though this kind screwdriver can solve the small space screwdriver to a certain extent and use difficult problem, but mainly to be a end by the swing arm that utilizes unequal arm and right-angle bending put in machine intimate for it, the top that then requires to treat the dismounting part during operation does not have other object and can rotate, otherwise it can only hold continuous low-angle rotation swing arm.Hinder for above-mentioned three quilts, the machine of an opening or equipment, it also faces the problem of operating space deficiency and inconvenient operation.

Summary of the invention

In view of the above problems, main purpose of the present utility model is to provide a kind of dismounting obstacle part that need not, even hinder for three quilts, the machine of an opening or equipment, the situation of also not having operating space deficiency and inconvenient operation just can enter the novel screwdriver that machine intimate is finished the single-point disassemble and assemble work.

To achieve these goals, the utility model has adopted following technical proposals:

Described screwdriver comprises screw tool arm and cutter head, wherein, described cutter head is an end that is installed in the screw tool arm, and this described screw tool arm comprises first tool arm, second tool arm and the 3rd tool arm, the described second tool arm two ends, first tool arm, one end and the 3rd tool arm one end are processed into gear-like respectively, and the gear end of this described first tool arm and the 3rd tool arm is respectively and the mutual interlock transmission of the gear end of second tool arm, and between this first tool arm and second tool arm, angle between second tool arm and the 3rd tool arm is 90 degree, again, above-mentioned first, the outer respectively fixed cover that is equiped with of the mutual interlock part of the second and the 3rd tool arm is in order to first tool arm, second tool arm and the 3rd tool arm are connected and fixed and constitute an integral body.

In addition, an end of described the 3rd tool arm offers perforate, and described cutter head is for being installed in wherein, and this cutter head is detachable, and operating personnel can change the cross or a word cutter head of different size according to actual needs.

By said structure, even also having at staff under the situation about stretching in enough spaces, operating personnel still can not carry out disassemble and assemble work, need not to dismantle casing or dismounting is had the parts of obstruction, it realizes having practical value easily.

Description of drawings

Fig. 1 is the overall structure schematic diagram of screwdriver described in the utility model;

Fig. 2 is the internal gear structural representation of screwdriver described in the utility model.

The specific embodiment

Come the utility model is elaborated below in conjunction with accompanying drawing and specific embodiment.

Screwdriver described in the utility model is applicable to that mainly three quilts hinder, the machine of an opening, equipment inner structure, shown in Fig. 1 and Fig. 2, this screwdriver 10 mainly comprises screw tool arm 20 and is installed in the cutter head 30 of screw tool arm 20 1 ends, wherein, described screw tool arm 20 comprises first tool arm 201, second tool arm 202 and the 3rd tool arm 203, these described second tool arm 202 two ends (202a and 202b), first tool arm, 201 1 ends and the 3rd tool arm 203 1 ends are processed into gear-like respectively, and the gear end (2011 and 2031) of described first tool arm 201 and the 3rd tool arm 203 is respectively gear end (202a and the 202b) interlock mutually with second tool arm 202, and between this first tool arm 201 and second tool arm 202, angle between second tool arm 202 and the 3rd tool arm 203 is 90 degree, again, above-mentioned first, the second and the 3rd tool arm (201,202 and 203) the mutual outer respectively fixed cover 40 that is equiped with of interlock part is in order to first tool arm 201, second tool arm 202 and the 3rd tool arm 203 are connected and fixed and constitute an integral body; During operation, rotating first tool arm 201 makes second tool arm 202 rotate and then drive 203 rotations of the 3rd tool arm, and then reach the rotation of cutter head 30, by this said structure, operating personnel need not to dismantle casing or have the parts of obstruction just can realize dismounting action to the machine intimate screw to dismounting.

In addition, on the other end of described the 3rd tool arm 203, offer a perforate (not shown), described cutter head 30 is for being installed in wherein, it is detachable, and this cutter head 30 is for to make with conventional magnetic material, operating personnel can change the cross or a word cutter head of different size according to actual needs when operation.

Again, in the actual mechanical process, described cutter head 30 can adopt and screw togather, inserts or mode such as engaging is installed in this perforate.

Shown in Fig. 1 and Fig. 2, during concrete enforcement, operating personnel are hindering such as three quilts for similar, the machine of an opening, during equipment inner structure, only need will this described screwdriver 10 the front promptly be equiped with the 3rd tool arm 203 of cutter head 30 and second tool arm 202 puts in machine intimate and make cutter head 30 aim at and need the dismounting position just can, rotate first tool arm 201 in machine exterior then, by first tool arm 201 and second tool arm 202, and second between tool arm 202 and the 3rd tool arm 203 the interlock transmission so that make cutter head 30 rotate, realize dismounting action then to removed position.

Claims

1. a screwdriver is characterized in that, comprises

One cutter head; And

One screw tool arm, above-mentioned cutter head is for being installed in the one end, and this it comprise first tool arm, second tool arm and the 3rd tool arm, wherein, the second tool arm two ends, first tool arm, one end and the 3rd tool arm one end are processed into gear-like respectively, and the gear end of described second tool arm respectively with the mutual interlock of gear end of first tool arm and the 3rd tool arm, again, between above-mentioned first, second and the 3rd tool arm, be equiped with fixed cover outside interlock place respectively.

2. screwdriver as claimed in claim 1 is characterized in that, the angle between described first tool arm and second tool arm, between second tool arm and the 3rd tool arm is 90 degree.

3. screwdriver as claimed in claim 1 is characterized in that, described cutter head is an end that is installed in the 3rd tool arm.