CN202292661U

CN202292661U - Square screw extractor

Info

Publication number: CN202292661U
Application number: CN201120350370XU
Authority: CN
Inventors: 徐水木
Original assignee: HANGZHOU HANGREN TOOLS CO LTD
Current assignee: HANGZHOU HANGREN TOOLS CO LTD
Priority date: 2011-08-18
Filing date: 2011-08-18
Publication date: 2012-07-04
Anticipated expiration: 2021-08-18

Abstract

The utility model discloses a square screw extractor. The upper end of the square screw extractor is provided with a square shank body; the shank body gradually becomes small in transverse diameter from the middle part to the lower part; the lower end of the square screw extractor is provided with a shank head of which the cross section is round and the longitudinal section is triangular; one sides of four surfaces of the lower end of the shank body are respectively provided with a sharp slot; and each sharp slot and one surface of the shank body form a sharp edge. A broken-end screw can be simply taken out by using the device. The square screw extractor disclosed by the utility model has the advantages that the operation is simple, simultaneously, the effective cost is extremely low and the practical effect is very strong.

Description

Square screw extractor

[technical field]

The utility model relates to a kind of screw thread fix tool, is specifically related to a kind of square screw extractor technical field.

[background technology]

Fields of society is widely-used in modern times as a kind of fastening accessory for screw; But along with pass or the improper use overexertion service time; Can cause the screw division disjunction in screw and can't take out, cause the screw sealing can't dismantle or change screw like this.Make it can be fastening for recovering screw, must repair screw thread, conventional means uses outside violence boring to get through screw, is screwed into thread bush then, yet this method had not only been wasted simultaneously but also when taking a lot of work, also can cause unnecessary damage to fastened equipment.

[utility model content]

In order to overcome the deficiency of existing technology, the utility model provides a kind of square screw extractor, and this device can simply take out the fracture screw in the screw, can be fastening as long as change screw, and this apparatus structure is simply effective, has very strong practical function.

The utility model technical problem to be solved is: existing broken end screw takes out complex procedures from screw, and cost is high, simultaneously because adopt percussion mechanism to make fastened equipment cause unnecessary damage easily.

The technical scheme that the utility model adopted is: square screw extractor is characterized in that the upper end is the square shank body; Downward transverse diameter its lower end that diminishes gradually is a shape of cross section for circular to the handle body from the middle part; Vertical sectional shape is leg-of-mutton button; Four sides, handle body lower end one side respectively has a cutting edge of a knife or a sword groove, and cutting edge of a knife or a sword groove and handle body simultaneously constitute a cutting edge of a knife or a sword mouth.

As preferably, described square its characteristic of screw extractor, described cutting edge of a knife or a sword groove is a del, the cutting edge of a knife or a sword groove depth is 1-3MM.

As preferably, described square its characteristic of screw extractor, both sides, described button longitudinal section angle is 90 degree, and handle body lower end cutting edge of a knife or a sword groove inner side edge is connected the another side angle with the handle body be the 75-85 degree, and the two sides angle of handle body connection is 90 to spend.

When this device uses, use the punching of external force alignment screw breaks, and make the screw interlock of screw extractor (square) and broken end tight; Use spanner to sting tight handle body upper end then; The left-hand thread direction turns screw thread, and the screw that will break end takes out, and it is fastening to use standard screws to be screwed into then.

The utility model beneficial effect: use this device can simply take out the screw of broken end, while cost-effectively simple to operate extremely hangs down and has very strong practical function.

For making characteristic and the technology contents of further understanding the utility model, see the utility model accompanying drawing and embodiment for details, yet appended graphic only for reference and explanation usefulness is not to be that the utility model is limited.

[description of drawings]

Fig. 1 is the utility model structure chart;

Fig. 2 is the utility model A-A ' sectional view;

Fig. 3 is the utility model B-B ' sectional view;

Fig. 4 is the utility model C-C ' sectional view;

Among the figure, 101-handle body; 102-cutting edge of a knife or a sword groove; 103-cutting edge of a knife or a sword mouth; The 104-button.

[specific embodiment]

Below in conjunction with accompanying drawing and embodiment the utility model is further specified:

Square screw extractor its by handle body 101; Cutting edge of a knife or a sword groove 102; Cutting edge of a knife or a sword mouth 103; 104 compositions of button.

Square screw extractor upper end is the square shank body; Downward transverse diameter its lower end that diminishes gradually is a shape of cross section for circular to the handle body from the middle part; Vertical sectional shape is leg-of-mutton button, and four sides, handle body lower end one side respectively has a cutting edge of a knife or a sword groove, and cutting edge of a knife or a sword groove and handle body simultaneously constitute a cutting edge of a knife or a sword mouth.When using, use the punching of external force alignment screw breaks, and make the screw interlock of square screw extractor and broken end tight; Use spanner to sting tight handle body upper end then; The left-hand thread direction turns screw thread, and the screw that will break end takes out, and it is fastening to use standard screws to be screwed into then.

Use this device can simply take out the screw of broken end, while cost-effectively simple to operate extremely hangs down and has very strong practical function.

Yet the preferable feasible embodiment of above-mentioned only the utility model, non-so limitation the utility model protection domain is done various distortion or is applied mechanically all within this technical scheme protection domain according to the foregoing description.

Claims

1. square screw extractor is characterized in that, the upper end is the square shank body; Downward transverse diameter its lower end that diminishes gradually is a shape of cross section for circular to the handle body from the middle part; Vertical sectional shape is leg-of-mutton button, and four sides, handle body lower end one side respectively has a cutting edge of a knife or a sword groove, and cutting edge of a knife or a sword groove and handle body simultaneously constitute a cutting edge of a knife or a sword mouth.

2. square screw extractor according to claim 1 is characterized in that described cutting edge of a knife or a sword groove is a del, and the cutting edge of a knife or a sword groove depth is 1-3MM.

3. square screw extractor according to claim 1 is characterized in that, both sides, described button longitudinal section angle is 90 degree, and handle body lower end cutting edge of a knife or a sword groove inner side edge is connected the another side angle with the handle body be the 75-85 degree, and the two sides angle that the handle body connects is 90 degree.