CN204397743U

CN204397743U - A kind of screwdriver

Info

Publication number: CN204397743U
Application number: CN201420861495.2U
Authority: CN
Inventors: 岳国生; 王长福; 安炯; 卢炯
Original assignee: HUBEI WANSHIDA AUTOMOTIVE PARTS CO Ltd
Current assignee: HUBEI WANSHIDA AUTOMOTIVE PARTS CO Ltd
Priority date: 2014-12-31
Filing date: 2014-12-31
Publication date: 2015-06-17
Anticipated expiration: 2024-12-31

Abstract

A kind of screwdriver, comprise knife bar, be arranged at the handle of knife bar one end, be arranged at the fixing edge of a knife of the knife bar other end, being arranged at knife bar interior for coordinating the movable edge of a knife forming ' ten ' the font edge of a knife with the fixing edge of a knife, being arranged at the spring for driving the movable edge of a knife to prolong knife bar axially-movable in knife bar; Described spring one end connecting handle, the other end is connected with the movable edge of a knife; The described fixing edge of a knife is ' one ' the font edge of a knife, is provided with the open slot for inserting the fixing edge of a knife in the middle part of described movable edge of a knife edge of a knife end.The driver bit of general bottle opener is all a word or crosshead, is need to change screwdriver or to the end at the different screw of use, can be cumbersome.The utility model processing is simple, and batch micro operations feasibility is strong, is applicable to industrialization and uses; In use, without the need to changing screwdriver or cutter head frequently, the utility model can be directly used to mount and dismount two kinds of screws.

Description

A kind of screwdriver

Technical field

The utility model relates to a kind of screwdriver.

Background technology

In order to apply little torque to screw, people contemplate and open a groove on head of screws, just can easily tighten with the Flathead screwdriver of correspondence and unclamp screw.Along with the develop rapidly of science and technology, the application of screw is more and more extensive, and the deficiency of screw and straight screwdriver has also presented.First be the flat recess of head of screw once be damaged, screw just cannot be back-outed.The length of flat recess is longer, is also easilier being destroyed by the process of twisting.In order to the length of notch can be shortened, improve the ability that notch opposing destroys, onesize torsion can be transmitted again, people expect with cross recess, same torsion can be born, but the short half of the length of a notch, the ability that opposing destroys but strengthens greatly.Screwdriver is in-line originally, can not be used for cross recessed screw, only has a kind of Phillips screwdriver of other production corresponding with cruciform slot screw.So just need with two kinds of screwdrivers.

Phillips screwdriver is that this Two decades years just starts invention, uses, and the screw of flat recess mouth has just been used since having machine.Screw on old machine all can not be changed.Phillips screwdriver can not be used in again on flat recess mouth, besides the screw of flat recess mouth is also in production application, so will retain straight screwdriver.Like this, new engine is with cross notch screw mostly, and old is yet using, and has just had and has used the situation of two kinds of screwdrivers simultaneously.

The driver bit of general bottle opener is all a word or crosshead, is need to change screwdriver or to the end at the different screw of use, can be cumbersome.

Summary of the invention

Goal of the invention of the present utility model provides a kind of when not changing screwdriver to overcome prior art above shortcomings, realizes the change of two kinds of cutter heads, easy to use, process simple screwdriver.

The technical solution of the utility model is: comprise knife bar, be arranged at the handle of knife bar one end, be arranged at the fixing edge of a knife of the knife bar other end, being arranged at knife bar interior for coordinating the movable edge of a knife forming ' ten ' the font edge of a knife with the fixing edge of a knife, being arranged at the spring for driving the movable edge of a knife to prolong knife bar axially-movable in knife bar; Described spring one end connecting handle, the other end is connected with the movable edge of a knife; The described fixing edge of a knife is ' one ' the font edge of a knife, is provided with the open slot for inserting the fixing edge of a knife in the middle part of described movable edge of a knife edge of a knife end.

Described knife bar and fixing edge of a knife link are provided with the gathering sill being convenient to lead when the movable edge of a knife stretches, gathering sill place plane and fixing edge of a knife place plane orthogonal.

The described movable edge of a knife and spring link are provided with the base for linking springs.

Described base is disc-shaped structure, and area amasss equal with knife bar lumenal cross-section.

During use, the cutter head of screwdriver is aimed at the top groove of screw, fixing, then start rotary handle.According to specification standards, rotate to be tightly embedding clockwise; Counterclockwise rotate then for easing out .

When installing or removing plus screw, directly the edge of a knife is faced toward screw grooves, when installing or removing a word screw, the edge of a knife will be fixed facing to screw grooves place, pushing screwdriver, makes the screw promotion activity edge of a knife, makes spring-compressed, the movable edge of a knife falls back on screwdriver inside, can realize straight screwdriver function.

The utility model has the advantages that: processing is simple, batch micro operations feasibility is strong, is applicable to industrialization and uses; In use, without the need to changing screwdriver or cutter head frequently, the utility model can be directly used to mount and dismount two kinds of screws.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model.

Fig. 2 is the structural representation of the movable edge of a knife.

Fig. 3 is the structural representation of knife bar and the fixing edge of a knife.

Detailed description of the invention

In Fig. 1, a kind of screwdriver, comprises knife bar 1, and be arranged at the fixing edge of a knife 2 be connected of knife bar 1 one end and the handle 3 being connected to knife bar 1 other end, the fixing edge of a knife 2 is ' one ' the font edge of a knife; Knife bar 1 is tubular, spring 4 is provided with in knife bar 1, spring 4 one end connecting handle 3, the other end is provided with and coordinates with the fixing edge of a knife 2 the movable edge of a knife 5 forming ' ten ' the font edge of a knife, is provided with and is provided with open slot for inserting the fixing edge of a knife 2 in the middle part of the described movable edge of a knife 5 edge of a knife end.The fixing edge of a knife 2, the movable edge of a knife 5 are wedge shape flake.

In Fig. 2, the movable edge of a knife 5 is set to wedge shape flaky texture with fixing edge of a knife link, and middle part is provided with the open slot 6 for inserting the fixing edge of a knife; The movable edge of a knife 5 and spring link are provided with the base 7 for linking springs; Base 7 is disc-shaped structure, and area amasss equal with knife bar lumenal cross-section.

In Fig. 3, knife bar 1 and the fixing edge of a knife 2 link are provided with the gathering sill 8 being convenient to lead when the movable edge of a knife stretches, gathering sill 8 place plane and the fixing edge of a knife 2 place plane orthogonal.

When installing or removing plus screw, directly the edge of a knife is faced toward screw grooves, when installing or removing a word screw, the edge of a knife 2 will be fixed facing to screw grooves place, pushing screwdriver, makes the screw promotion activity edge of a knife 5, spring 4 is compressed, the movable edge of a knife 5 falls back on screwdriver inside, can realize straight screwdriver function.

Claims

1. a screwdriver, it is characterized in that, comprise: knife bar (1), be arranged at the handle (3) of knife bar (1) one end, be arranged at the fixing edge of a knife (2) of knife bar (1) other end, being arranged at knife bar (1) interior for coordinating the movable edge of a knife (5) forming ' ten ' the font edge of a knife with the fixing edge of a knife (2), being arranged at the spring (4) for driving the movable edge of a knife (5) to prolong knife bar axially-movable in knife bar (1); Described spring (4) one end connecting handle (3), the other end is connected with the movable edge of a knife (5); The described fixing edge of a knife (2) is ' one ' the font edge of a knife, is provided with the open slot (6) for inserting the fixing edge of a knife (2) in the middle part of the described movable edge of a knife (5) edge of a knife end.

2. screwdriver according to claim 1, is characterized in that: the described fixing edge of a knife (2), the movable edge of a knife (5) are wedge shape flake.

3. screwdriver according to claim 1, it is characterized in that: described knife bar (1) and the fixing edge of a knife (2) link are provided with gathering sill (8), gathering sill (8) place plane and the fixing edge of a knife (2) the place plane orthogonal being convenient to lead when the movable edge of a knife (5) stretches.

4. screwdriver according to claim 1, is characterized in that: the described movable edge of a knife (5) and spring (4) link are provided with the base (7) for linking springs.

5. screwdriver according to claim 4, is characterized in that: described base (7) is disc-shaped structure, and area amasss equal with knife bar (1) lumenal cross-section.