CN202862080U

CN202862080U - Screw driver

Info

Publication number: CN202862080U
Application number: CN 201220512622
Authority: CN
Inventors: 黄贤
Original assignee: SHENGZHOU SANHENG TOOLS CO Ltd
Current assignee: SHENGZHOU SANHENG TOOLS CO Ltd
Priority date: 2012-09-28
Filing date: 2012-09-28
Publication date: 2013-04-10
Anticipated expiration: 2022-09-28

Abstract

The utility model relates to a screw driver which comprises a handle, a driver rod and a driver head. The driver rod is composed of spring contractive wire and a spring flexible pipe. The spring flexible pipe is sleeved on the surface of the spring contractive wire. A plug is welded on the tope end of the spring contractive wire. A driver head plug-in unit is welded on the tail portion of the spring contractive wire. A hexagon inserting hole is formed in the driver head plug-in unit. A fastening ring is covered on the outer surface of the driver head plug-in unit and enables a marble to be fixed on the side edge of the inserting hole. A first armrest ring and a second armrest ring are connected with two ends of the spring flexible pipe. Compared with the prior art, due to the fact that the driver rod can be bent at an angle of 0 to 100 degrees, when working is conducted for screws at the bent position and the complex portions, use is more convenient to achieve and more efficient.

Description

A kind of screwdriver

Technical field:

The utility model relates to a kind of screwdriver, belongs to the hand-operated tools field.

Background technology:

Screwdriver is one of a kind of the most frequently used maintenance tool, and almost the every household has, and driver bit has in-line, cross, hexagon etc., and the metal barred body that screwdriver rod is normally solid is rigidity, can not be crooked.Although this screwdriver is commonly used, also Shortcomings part, as: very low for the screw operating efficiency that is in the dead angle; In practical set or maintenance work, on the component of machine of some complicated structures, screw in or when pulling down screw, if when running into the screw that turns and being blocked by certain top parts, use unyielding straight-bar screwdriver often not prove effective.

The utility model content:

The purpose of this utility model is to provide a kind of screw driver handle for above-mentioned the deficiencies in the prior art, can crookedly use, and increases work efficiency.

For achieving the above object, the technical solution adopted in the utility model is: a kind of screwdriver, comprise handle, knife bar and cutter head, knife bar is comprised of spring contracting silk and spring hose, and spring hose is placed in spring contracting silk surface, and described spring contracting silk top is welded with plug, spring contracting silk afterbody is welded with the cutter head plug-in unit, be provided with the hexagon jack in the described cutter head plug-in unit, the outer surface of cutter head plug-in unit is wrapped in tight loop, and tight loop is fixed on a hoodle on the jack edge; The two ends of described spring hose are connected with the first hand rail cycle and the second hand rail cycle, between the double wedge of plug and the first hand rail cycle inside, be placed with a spring, described both ends of the spring contacts with afterbody and the double wedge of plug, and it is fixing that the double wedge of the double wedge of the second hand rail cycle inside and cutter head plug-in unit forms engagement.

The beneficial effects of the utility model are: the utility model compared with prior art because flexible 0 °～100 ° of knife bar, when the screw of corner and complex region is carried out work, uses convenient, more efficient.

Description of drawings:

Fig. 1 is the utility model front view;

Fig. 2 is the structure chart of knife bar;

Fig. 3 is the A place cutaway view of Fig. 2;

Fig. 4 is the B place cutaway view of Fig. 2;

Fig. 5 is the structure chart of cutter head plug-in unit.

The specific embodiment:

Below in conjunction with accompanying drawing, and in conjunction with the embodiments, the utility model is described further.

As shown in the figure, a kind of screwdriver of the utility model, comprise handle 1, knife bar 2 and cutter head 3, knife bar 2 is comprised of spring contracting silk 4 and spring hose 5, and spring hose 5 is placed in spring contracting silk 4 surfaces, and described spring contracting silk 4 tops are welded with plug 6, spring contracting silk 4 afterbodys are welded with cutter head plug-in unit 7, be provided with hexagon jack 8 in the described cutter head plug-in unit 7, the outer surface of cutter head plug-in unit 7 is wrapped in tight loop 10, and tight loop 10 is fixed on a hoodle 11 on jack 8 edges; The two ends of described spring hose 5 are connected with the first hand rail cycle 12 and the second hand rail cycle 13, between the double wedge 15 of plug 6 and the first hand rail cycle 12 inside, be placed with a spring 14, described spring 14 two ends contact with afterbody and the double wedge 15 of plug 6, and the double wedge 16 of the second hand rail cycle 13 inside forms engagement with the double wedge of cutter head plug-in unit 7 17 and fixes.

Principle of the present utility model: utilize spring contracting silk 4 and spring hose 5 flexible so that screwdriver can crookedly use, the elasticity of the spring 14 of utilization between the double wedge 15 of plug 6 and the first hand rail cycle 12 inside is fixed on spring contracting silk 4 outer surfaces with spring hose 5, simultaneously, after cutter head 3 is installed, cutter head 3 extruding hoodles 11 are because the shrinkage of tight loop 9 makes cutter head 3 installations more firm.

Claims

1. screwdriver, comprise handle (1), knife bar (2) and cutter head (3), it is characterized in that: knife bar (2) is comprised of spring contracting silk (4) and spring hose (5), spring hose (5) is placed in spring contracting silk (4) surface, described spring contracting silk (4) top is welded with plug (6), spring contracting silk (4) afterbody is welded with cutter head plug-in unit (7), be provided with hexagon jack (8) in the described cutter head plug-in unit (7), the outer surface of cutter head plug-in unit (7) is wrapped in tight loop (10), and tight loop (10) is fixed on a hoodle (11) on jack (8) edge; The two ends of described spring hose (5) are connected with the first hand rail cycle (12) and the second hand rail cycle (13), between the double wedge (15) of plug (6) and the first hand rail cycle (12) inside, be placed with a spring (14), described spring (14) two ends contact with afterbody and the double wedge (15) of plug (6), and the inner double wedge (16) of the second hand rail cycle (13) is fixed with double wedge (17) the formation engagement of cutter head plug-in unit (7).