CN203109857U

CN203109857U - Special-shaped wrench

Info

Publication number: CN203109857U
Application number: CN 201320102716
Authority: CN
Inventors: 孙浩儿
Original assignee: NINGBO HAOBO COMMERCE CO Ltd
Current assignee: NINGBO HAOBO COMMERCE CO Ltd
Priority date: 2013-03-07
Filing date: 2013-03-07
Publication date: 2013-08-07
Anticipated expiration: 2023-03-07

Abstract

The utility model discloses a special-shaped wrench. The special-shaped wrench comprises a grab handle part (1), wherein a clamping part (2) is arranged at one end of the grab handle part (1), the clamping part (2) is of a circular arc shape, one end of the clamping part (2) is fixedly connected with one end of the grab handle part (1), and the other end of the clamping part (2) is provided with a clamping block (201) which is matched with a groove (301) in a round nut (3). By means of the special-shaped wrench, the round nut can be screwed or unscrewed conveniently, and the phenomenon that the round nut is damaged is avoided.

Description

Profile spanner

Technical field

The utility model relates to a kind of spanner, and is particularly a kind of be used to the profile spanner of pulling round nut.

Background technology

General and the round nut stop washer of round nut is used, round nut is provided with 4 or 6 grooves, the round nut stop washer is provided with the tooth that matches with groove, with the instrument round nut screw in place after, the tooth of round nut stop washer is embedded in the groove of round nut, round nut namely is locked, and in the time of need unscrewing round nut, the round nut stop washer is taken out, unscrew round nut with instrument again, because the shape of round nut is more special, general die nut can't be used for screwing or unscrew round nut, screws or unscrews round nut at present and generally adopt hammer to beat, when hammer beats, screw thread on the round nut damages easily, thereby this round nut is damaged, and can't use.

The utility model content

Technical problem to be solved in the utility model is the profile spanner that provides and can screw or unscrew round nut easily, avoids round nut to damage.

For solving the problems of the technologies described above, the profile spanner that the utility model provides, it comprises shank part, one end of shank part is provided with clamping part, described clamping part is circular arc, one end of clamping part is fixedlyed connected with an end of shank part, and the other end of clamping part is provided with the fixture block that matches with groove on the round nut, and shank part and clamping part form by No. 45 high-strength material manufacturings such as steel, 40 boron steels, 20 manganese titanium boron steels or 35CrMoA.

After adopting above structure, the utility model compared with prior art has following advantage:

When using this profile spanner, one end of clamping part is propped up round nut, the fixture block of the other end of clamping part is embedded in the groove of round nut, at this moment, the application of force on shank part, this profile spanner is rotated, rotate thereby drive round nut, can make this round nut screw or unscrew, very convenient, need not screw or unscrew round nut by the mode that hammer beats, can avoid the thread damage on the round nut, thereby avoid round nut to be damaged and situation about can't use takes place.

As improvement, the inner arc surface of an end of the close shank part of described clamping part is provided with pointed projection, and an end of the close shank part of clamping part offsets by pointed projection and round nut, makes an end and the round nut of the close shank part of clamping part fix firm.

As improvement, the end away from clamping part of described shank part is provided with hanging hole, and hanging hole can be used for hanging this profile spanner, makes things convenient for the placement of this profile spanner.

Description of drawings

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

Fig. 2 is the structural representation when pulling round nut of the present utility model.

Wherein, 1, shank part; 101, hanging hole; 2, clamping part; 201, fixture block; 202, pointed projection; 3, round nut; 301, groove.

The specific embodiment

Below in conjunction with the drawings and specific embodiments the utility model is done explanation in further detail.

By Fig. 1, shown in Figure 2, the utility model profile spanner comprises shank part 1, one end of shank part 1 is provided with clamping part 2, described clamping part 2 is circular arc, the inner arc surface of clamping part 2 and round nut 3 match, the outer surface of round nut 3 is provided with four circumferential equally distributed grooves 301, one end of clamping part 2 is fixedlyed connected with an end of shank part 1, the other end of clamping part 2 is provided with the fixture block 201 that matches with groove 301 on the round nut 3, fixture block 201 extends to center of circle direction from the inner arc surface of clamping part 2, and fixture block 201 can embed in the groove 301.

The inner arc surface of one end of the close shank part 1 of described clamping part 2 is provided with pointed protruding 202.

End away from clamping part 2 of described shank part 1 is provided with hanging hole 101.

Shank part 1 and clamping part 2 are by No. 45 steel, 40 boron steels, high-strength material manufacturings such as 20 manganese titanium boron steels or 35CrMoA form, originally common spanner is generally made by common ferrous material, when the part of pulling when needs is installed too firmly, need apply bigger power at spanner, when the power on being applied to spanner surpasses certain value, spanner deforms easily, result of use is bad, because profile spanner of the present utility model has adopted steel No. 45,40 boron steels, high-strength material manufacturings such as 20 manganese titanium boron steels or 35CrMoA, its intensity was compared originally to be increased greatly, even this profile spanner apply bigger, it also is not easy to deform, and result of use is better.

Operation principle of the present utility model is as follows: when using this profile spanner, one end of clamping part 2 is propped up the outer surface of round nut 3, the fixture block 201 of the other end of clamping part 2 is embedded in the groove 301 of round nuts 3, at this moment, the application of force on shank part 1, this profile spanner is rotated, thereby driving round nut 3 rotates, when round nut 3 turns an angle, adjust the position of this profile spanner, fixture block 201 is embedded in another groove 301 of round nut 3, continuation is the application of force on shank part 1, round nut 3 is rotated further, repeats above-mentioned action, can make this round nut 3 screw or unscrew.

Below only use preferable example with regard to the utility model and made explanation, but can not be interpreted as it is limitations on claims, structure of the present utility model can have other variations, is not limited to said structure.In a word, all various variations of doing in the protection domain of independent claims of the present utility model are all in protection domain of the present utility model.

Claims

1. profile spanner, it comprises shank part (1), one end of shank part (1) is provided with clamping part (2), it is characterized in that: described clamping part (2) is circular arc, one end of clamping part (2) is fixedlyed connected with an end of shank part (1), and the other end of clamping part (2) is provided with the fixture block (201) that matches with groove (301) on the round nut (3).

2. profile spanner according to claim 1, it is characterized in that: the inner arc surface of an end of the close shank part (1) of described clamping part (2) is provided with pointed projection (202).

3. profile spanner according to claim 1, it is characterized in that: the end away from clamping part (2) of described shank part (1) is provided with hanging hole (101).