CN103934783A

CN103934783A - Screwdriver capable of switching between line shape and cross shape by stretching and retracting automatically

Info

Publication number: CN103934783A
Application number: CN201310054044.8A
Authority: CN
Inventors: 曾宪标
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-01-19
Filing date: 2013-01-19
Publication date: 2014-07-23

Abstract

The invention discloses a screwdriver capable of switching between a line shape and a cross shape freely by stretching and retracting automatically. According to the screwdriver, a pipe is arranged in a cross-shaped metal blade, a line-shaped metal blade is placed in the pipe, the line-shaped metal blade is sleeved with a sliding claw sleeve, the sliding claw sleeve is sleeved with a spring, and the connection effect between a sliding claw of the sliding claw sleeve, a pressing strip of a hand-pressing push rod and an indexing claw enables the line-shaped metal blade to stretch and retract freely on a cross-shaped metal head which is cut open. Moreover, the cross-shaped metal head is connected with the bottom of an insulated handle through a small spring in the pipe of the cross-shaped metal blade so that the small hinge connecting pipe and the metal head which is cut open can be combined.

Description

Automatic telescopic converts a word Phillips screwdriver

Affiliated technical field:

The present invention relates to a kind of screwdriver device of the turn of the screw effect, especially can the arbitrarily screwdriver of conversion one word cross of automatic telescopic.

Background technology:

At present, known screwdriver is to be combined by insulated handle, a word steel edge or cross steel edge, in the time that needs are twisted a word screw-socket or Philip's head screw mouth, just corresponding screwdriver is twisted, so both become isolated two items, carried inconvenience and the time that increases construction.Also having one of bonding jumper is a word, and other end is cross, can take out replacement, but so not only can not make insulated handle and bonding jumper fix, and easily makes bonding jumper come off at insulated handle, also increases trouble and the engineering time in replacing.

Summary of the invention:

Can better not convert the deficiency of a word cross-shaped knife in order to overcome existing screwdriver, the invention provides a kind of automatic telescopic and convert a word Phillips screwdriver, this screwdriver is not only by both combinations, fixing metal bar, make it difficult drop-off, and automatic telescopic carries out free exchange easily.

The technical solution adopted for the present invention to solve the technical problems is: be arranged to pipeline in cross steel edge inside, place a word steel edge, and cross ferrule is cut to two halves, place little hinge in cross ferrule and the bonding jumper junction of cutting respectively, can make cross ferrule outwards movable, and be connected with the cross ferrule placement little spring of each incision bottom insulated handle, can make cross ferrule synthetic cross ferrule under the effect of elastic force of cutting.And in insulated handle, rotary setting is with the calibration pawl in three identical gaps of sliding pawl width of protruding with sliding pawl cover, and be also placed with the hand push rod of same widths press strip, Compress Spring is placed to a word steel edge outside, and make sliding pawl cover entangle a word steel edge, when when pressing down push rod, the press strip on push rod just presses sliding pawl vertically, when sliding pawl is crossed after calibration pawl, the inclined-plane relative sliding that sliding pawl and press strip just contact along it, make sliding pawl slide to the inclined-plane of calibration pawl, and fall into after the groove of calibration pawl, stop sliding, thereby a word steel edge is stretched out from cross steel edge inside, when depressing again push rod, sliding pawl leaves groove, the inclined-plane contacting along it slides, in the gap of the sliding pawl landing that makes sliding pawl cover evagination between each calibration pawl, due to the elastic force of spring, one word steel edge is retracted, and cross steel edge also due to be connected little spring in insulated handle altogether.

The invention has the beneficial effects as follows, can be in the time that needs be twisted a word or Philip's head screw mouth, one by arbitrarily converting needed screwdriver, and both are combined into one, easy to carry, the simple to operate and saving engineering time.

Brief description of the drawings

The present invention is further described in conjunction with the accompanying drawings and embodiments in front

Fig. 1 is the sectional structural map of first embodiment of the present invention

Fig. 2 is the structural map of overlooking of second example example of the present invention

In Fig. 1.1. hand push rod, 2. calibration pawl, 3. slides pawl cover, 4. Compress Spring, a 5. embedded word steel edge, 6. little spring, 7. little hinge, the cross ferrule of 8. cutting, 9. insulated handle, 10. slides pawl.

Detailed description of the invention

In Fig. 1, in insulated handle 9, rotary setting is with the calibration pawl 2 in three identical gaps of sliding pawl width of protruding with sliding pawl cover 3, and be also placed with the hand push rod 1 of same widths press strip, Compress Spring is placed to a word steel edge outside, and make sliding pawl cover entangle a word steel edge, by pressing down push rod, make sliding pawl 10 leave groove, the inclined-plane contacting along it slides, make in sliding pawl landing that sliding pawl the overlaps 3 evaginations gap between each calibration pawl 2, due to the elastic force of Compress Spring 4, one word steel edge 5 is retracted, and the cross ferrule of cutting also due to be connected little spring 6 in insulated handle 9 bottoms altogether.

In Fig. 2, when when pressing down push rod 1, the press strip on push rod just presses sliding pawl 10 vertically, when sliding pawl 10 is crossed after calibration pawl 2, the inclined-plane relative sliding that sliding pawl and press strip just contact along it, makes sliding pawl slide to the inclined-plane of calibration pawl, and falls into after the groove of calibration pawl, stop sliding, thereby an embedded word steel edge 5 is stretched from the cross ferrule of cutting.

Claims

1. an automatic telescopic converts a word Phillips screwdriver, in insulated handle, connect a word steel edge, cross steel edge, it is characterized in that: a word steel edge is embedded in cross steel edge, by spring, sliding pawl cover, hand push rod connects, and makes the word steel edge can be from free-extension in cross steel edge.The cross ferrule of cutting can be merged into cross ferrule in each self-applying of spring and hinge.

2. automatic telescopic according to claim 1 converts a word Phillips screwdriver, it is characterized in that: will in cross steel edge, be arranged to pipeline, in cross steel edge is positioned over, cross ferrule is half-and-half cut, connect with hinge with pipeline, make the outwards activity of ferrule of cutting.And with spring connection, ferrule can be merged together under elastic force effect.Push rod is connected with a word steel edge, can inwardly push away and block, and makes steel edge to overhanging, and places Compress Spring at a word steel edge, when push rod unclamps bayonet socket, can make a word steel edge shrink back because of elastic force.

3. automatic telescopic according to claim 1 converts a word Phillips screwdriver, it is characterized in that stretching by push rod and spring action, reaches a word cross and freely converts.