Anti-rust tapping screw

A self-tapping screw and screw technology, applied in the direction of screws, nuts, bolts, etc., can solve the problems of reduced tightening effect, difficulty in disassembling screws, and unsatisfactory anti-rust layer effect, and achieves improved sealing effect and good anti-rust performance. Effect

Pending Publication Date: 2018-12-25
亦宸五金(浙江)股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The self-tapping screws in the prior art generally need to face the corrosion of the atmosphere and water vapor. In the production process, people often coat the screws with an anti-rust layer, but the effect of the anti-

Method used

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Embodiment Construction

[0015] refer to figure 1 , a rust-proof self-tapping screw of the present invention, comprising a screw body 1, the screw body 1 is composed of a screw head and a screw rod, the screw head is provided with a screw tightening groove 11, and the lower end of the screw rod is provided with a screw point 12. A self-tapping thread 13 is provided on the outer wall of the screw tip 12, an oil injection hole 22 is provided at the center of the screw head, an internal thread is provided in the oil injection hole 22, and an oil storage tank 23 is provided at the center of the screw rod. The oil injection hole 22 communicates with the oil storage tank 23. The oil storage tank 23 is provided with a number of oil guide channels 24. The oil guide channels 24 radially penetrate the screw rod and communicate with the outside of the screw rod. The oil injection hole 22 is equipped with A seal bolt 2 corresponding in size and shape, the outside of the seal bolt 2 is provided with an external th...

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PUM

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Abstract

The invention discloses an anti-rust tapping screw. A screw body is internally provided with an oil injection hole, an oil storage groove, an oil guide channel and other parts, so that anti-rust oil in the oil storage groove can flow to the surface of a screw rod of a screw post body through the oil guide channel; the oil injection hole is sealed by using a sealing bolt to prevent the anti-rust oil from making direct contact with the outside atmosphere and prevent oxidization; an external thread arranged on the sealing bolt corresponds to an internal thread of the oil injection hole, so that the sealing effect is improved; a groove formed in the sealing bolt facilitates installation and disassembly of the sealing bolt; a self-tapping thread is arranged on a screw tip, so that the screw body has the self-tapping characteristic. Compared with the prior art, the anti-rust performance is good while the characteristics of self-tapping screws are taken into consideration.

Description

【Technical field】 [0001] The invention relates to the field of mechanical tooling, in particular to a rust-proof self-tapping screw. 【Background technique】 [0002] The screw is a tool for fastening the parts of the object step by step by using the physical and mathematical principles of the oblique circular rotation and friction of the object. Screw is a general term for fasteners, a daily colloquial language. Screws are indispensable industrial necessities in daily life: tiny screws used in cameras, glasses, clocks, electronics, etc.; general screws for TVs, electrical products, musical instruments, furniture, etc.; large screws for engineering, construction, and bridges. Screws and nuts; transportation equipment, aircraft, trams, automobiles, etc. are used together with large and small screws. Screws have important tasks in industry. As long as there is industry on the earth, the function of screws will always be important. Screw is a common invention in people's produ...

Claims

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Application Information

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IPC IPC(8): F16B33/06F16B23/00F16B25/10
CPCF16B23/0038F16B25/10F16B33/06
Inventor 朱飞华
Owner 亦宸五金(浙江)股份有限公司
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