Screw

A screw and nail body technology, which is applied in the field of hardware manufacturing, can solve problems such as easy loosening and insufficient screw fastening force, and achieve the effect of large fastening force, good fastening force and convenient use

Inactive Publication Date: 2017-12-22
柳州市贵高物资有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The problem to be solved by the present invention is to provide a screw to solve the problems of insufficient fastening force and easy loosening of existing screws

Method used

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Embodiment Construction

[0010] Embodiments of the present invention are described in further detail below in conjunction with the accompanying drawings:

[0011] Such as figure 1 Shown this screw, it comprises the nail body of the circular truncated shape that one end is big and the other end is small, and the radial circle of nail body is provided with thread segment 3, and the small end of nail body is provided with inclined pointed head 6-1, and the big of nail body The end is provided with a nail cover 1, and the nail body includes two or more nail body segments connected by mutually embedded spherical protrusions 4 and spherical recesses 5, the nail body segment has two segments, and the spherical protrusions 4 is installed on the nail body section 2 connected to the top cover 1, and the spherical recess 5 is installed on the nail body section 6 with the pointed head 6-1. When the top cover 1 rotates, the two nail body sections rotate spherically with each other, and the advancing directions of...

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PUM

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Abstract

The invention discloses a screw. The screw comprises a circular-truncated-cone-shaped screw body with one end large and one end small. A threaded section is arranged on the radial periphery of the screw body. An inclined pointed head is arranged at the small end of the screw body. A screw cover is arranged at the large end of the screw body. The screw body comprises two or more screw body sections which are connected through a spherical protrusion and a spherical concave seat which are mutually embedded. When the top cover rotates, the two screw body sections rotate around a spherical surface mutually, and the two screw body sections are different in forwarding direction. Compared with the prior art, the screw provided by the invention can be used for solving the problems that an existing screw is insufficient in tightening force and is prone to loosening.

Description

technical field [0001] The invention relates to the technical field of hardware manufacturing, in particular to a threaded fastening piece with a sharp end. Background technique [0002] Existing screws generally include a round truncated nail body with a large end and a small end. A threaded section is provided on the radial circumference of the nail body. , generally used on materials that are softer than screws, and drill into the object to be nailed by its own rotation. It is easy to form a gap when it is shaken for a long time. In the case of long-term shaking, the tightening force of the screw in the axial direction is not enough, and it is easy to loosen, which poses a safety hazard. Contents of the invention [0003] The problem to be solved by the present invention is to provide a screw to solve the problem of insufficient fastening force and easy loosening of existing screws. [0004] In order to solve the above-mentioned problems, the technical solution of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16B25/02F16B39/28F16B35/02
CPCF16B25/0094F16B35/02F16B39/28
Inventor 洪瑞
Owner 柳州市贵高物资有限责任公司
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