CN202388434U

CN202388434U - Multi-head screwdriver

Info

Publication number: CN202388434U
Application number: CN2011204441772U
Authority: CN
Inventors: 王艳峰
Original assignee: Nantong Hongfeng Electromechanical Co Ltd
Current assignee: Nantong Hongfeng Electromechanical Co Ltd
Priority date: 2011-11-11
Filing date: 2011-11-11
Publication date: 2012-08-22
Anticipated expiration: 2021-11-11

Abstract

The utility model relates to a multi-head screwdriver, which comprises a screwdriver handle, a screwdriver bar, a screwdriver head and a screwdriver head box, wherein the screwdriver handle is fixedly connected with the screwdriver bar; the tail end of the screwdriver handle is rotationally connected with the screwdriver head box through screw threads; the screwdriver bar is connected with the screwdriver head through a polygonal concave platform and a polygonal convex platform in a matching way; the cross section of the end of the screwdriver head, which is connected with the screwdriver bar, is provided with the polygonal concave platform; the cross section of the end of the screwdriver bar, which is connected with the screwdriver head, is provided with the polygonal convex platform; one end of the screwdriver head box is provided with an opening, and the other end of the screwdriver head box is rotationally connected with the screwdriver handle through the screw threads. The multi-head screwdriver is convenient to carry, and screwdriver heads with different specifications can be mounted according to requirements, so the trouble of carrying multiple screwdrivers is avoided.

Description

A kind of bull screwdriver

Technical field:

The utility model relates to a kind of screwdriver, more particularly, relates in particular to a kind of bull screwdriver.

Background technology:

Screwdriver is the common tool of daily life, production.Because the difference of screw kind, need carry the screwdriver of all kinds cutter head usually, especially, can't carry excessive and the heavy tool box of volume, very inconvenience in the high-altitude or during the small space operation.

Summary of the invention:

The utility model provides a kind of bull screwdriver in order to address the above problem, and can change multiple driver bit as required, and is easy to carry.

In order to achieve the above object; The utility model is realized through following technical scheme: a kind of bull screwdriver, comprise handle of a knife, knife bar, cutter head and bit package, and handle of a knife is fixedly connected with knife bar; Be connected through screw thread rotation between the end of handle of a knife and the bit package; Be connected through polygon concave station and boss between knife bar and the cutter head, the end cross section that cutter head is connected with knife bar is the polygon concave station, and the end cross section that knife bar is connected with cutter head is the polygon boss; One end of bit package is an opening, and the other end of bit package is connected with handle of a knife through screw thread rotation.

Compared with prior art, the beneficial effect of the utility model is: this bull screwdriver is easy to carry, as required, the driver bit of different size can be installed, and obsolete cutter head is deposited in the terminal bit package of handle of a knife, takes at any time.

Description of drawings

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

Fig. 2 is the utility model screwdriver knife bar cross sectional representation.

Shown in the figure 1, cutter head; 2, knife bar; 3, handle of a knife; 4, bit package.

The specific embodiment

Below in conjunction with accompanying drawing and specific embodiment the utility model is described further.

Visible by Fig. 1: the utility model relates to a kind of bull screwdriver; Comprise handle of a knife 3, knife bar 2, cutter head 1 and bit package 4; Handle of a knife 3 is fixedly connected with knife bar 2, is connected through screw thread rotation between the end of handle of a knife 3 and the bit package 4, is connected through polygon concave station and boss between knife bar 2 and the cutter head 1; The end cross section that the preferred cutter head 1 of the utility model is connected with knife bar 2 is the polygon concave station; The end cross section that knife bar 2 is connected with cutter head 1 is the polygon boss, and an end of bit package 4 is an opening, and the other end of bit package 4 is connected with handle of a knife 3 through screw thread rotation.

When the cross section of described polygon concave station of the utility model embodiment and polygon boss is hexagon, be preferred version, but conduct is not the restriction to the utility model claim.

Claims

1. bull screwdriver; Comprise handle of a knife (3), knife bar (2), cutter head (1) and bit package (4); It is characterized in that: said handle of a knife (3) is fixedly connected with said knife bar (2); Be connected through screw thread rotation between the end of said handle of a knife (3) and the said bit package (4), be connected through polygon concave station and boss between said knife bar (2) and the said cutter head (1).

2. bull screwdriver according to claim 1 is characterized in that: the end cross section that said cutter head (1) is connected with said knife bar (2) is the polygon concave station.

3, bull screwdriver according to claim 1 is characterized in that: the end cross section that said knife bar (2) is connected with said cutter head (1) is the polygon boss.

4, bull screwdriver according to claim 3 is characterized in that: an end of said bit package (4) is an opening, and the other end of said bit package (4) is connected with handle of a knife (3) through screw thread rotation.