CN203230708U - Screw - Google Patents

Abstract

The utility model provides a screw comprising a first thread body, a second thread body and a hexagonal body. The first thread body and the second thread body are respectively provided at two ends of the hexagonal body, axes of the first thread body and the second thread body are parallel to each other and not collinear, an axis of the hexagonal body inclines to the axis of the first thread body, and the diameter of the first thread body is smaller than the diameter of the second thread body. After the screw is installed, the looseness of the thread bodies being vibrated at two ends can be prevented, the connection is stable and firm, and the screw can be connected with connecting holes with mutually staggered axes.

Description

Screw

Technical field

The utility model relates to a kind of fastening piece, particularly a kind of screw.

Background technique

Fastening piece is two or more parts (or member) to be fastenedly connected become class mechanical parts that adopt when whole, and traditional fastening piece has screw bolt and nut.When using bolt, two attachment holes must coaxial setting, and when part is subjected to designing requirement, during the attachment hole disalignment, traditional bolt can't be realized connecting, and traditional bolt is shaken easily after connection and produces loosening.

The model utility content

(1) technical problem that will solve

The technical problems to be solved in the utility model provides and a kind ofly can connect the out-of-alignment attachment hole, and can not produce loosening bolt after connecting.

(2) technological scheme

For solving the problems of the technologies described above, the utility model provides a kind of screw, comprise first threaded body 1, second threaded body 2 and hexagon 3, described first threaded body 1 and second threaded body 2 are located at the two ends of described hexagon 3 respectively, described first threaded body 1 and not conllinear parallel with the axis of second threaded body 2, the axis of described hexagon 3 favours the axis of described first threaded body 1, and the diameter of described first threaded body 1 is less than the diameter of described second threaded body 2.

Further, the angle between the axis of the axis of described hexagon 3 and described first threaded body 1 is more than or equal to 1 degree and smaller or equal to 45 degree.

Further, the angle between the axis of the axis of described hexagon 3 and described first threaded body 1 is 15 degree.

Further, the chrome-faced of described hexagon 3.

(3) beneficial effect

The utility model screw after the installation, can prevent that the two ends threaded body from being shaken and cause looseningly, connects firmly stable; Can connect the attachment hole that axis staggers mutually.

Description of drawings

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

Fig. 2 is the structural representation of another angle of the utility model screw.

Embodiment

Consult Fig. 1～Fig. 2, the utility model provides a kind of screw, comprise first threaded body 1, second threaded body 2 and hexagon 3, be equipped with outside thread on first threaded body 1 and second screw thread 2, the cross section of hexagon 3 is regular hexagon, first threaded body 1 and second threaded body 2 are located at the two ends of hexagon 3 respectively, first threaded body 1 and not conllinear parallel with the axis of second threaded body 2, the axis of hexagon 3 favours the axis of first threaded body 1, and the diameter of first threaded body 1 is less than the diameter of second threaded body 2; In the present embodiment, the angle between the axis of the axis of hexagon 3 and first threaded body 1 is more than or equal to 1 degree and smaller or equal to 45 degree, and is preferred, is 15 degree; In the present embodiment, in the chrome-faced of hexagon 3.

The utility model screw after the installation, can prevent that the two ends threaded body from being shaken and cause looseningly, connects firmly stable; Can connect the attachment hole that axis staggers mutually.

The above only is preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model know-why; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.

Claims (4)

1. screw, it is characterized in that: comprise first threaded body (1), second threaded body (2) and hexagon (3), described first threaded body (1) and second threaded body (2) are located at the two ends of described hexagon (3) respectively, described first threaded body (1) and not conllinear parallel with the axis of second threaded body (2), the axis of described hexagon (3) favours the axis of described first threaded body (1), and the diameter of described first threaded body (1) is less than the diameter of described second threaded body (2).

2. screw as claimed in claim 1 is characterized in that: the angle between the axis of the axis of described hexagon (3) and described first threaded body (1) is more than or equal to 1 degree and smaller or equal to 45 degree.

3. screw as claimed in claim 2 is characterized in that: the angle between the axis of the axis of described hexagon (3) and described first threaded body (1) is 15 degree.

4. screw as claimed in claim 1 is characterized in that: the chrome-faced of described hexagon (3).

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