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Double sealings high-pressure grease pouring valve

A grease injection valve and double-sealing technology, which is applied to engine components, engine lubrication, lubricating parts, etc., to achieve the effects of preventing medium leakage, long service life and good sealing performance

Active Publication Date: 2008-05-14
金星阀门有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The double-seal high-pressure grease injection valve can well solve the problem of "running and leaking" in the overall valve lubrication system

Method used

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  • Double sealings high-pressure grease pouring valve

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Embodiment Construction

[0009] As the embodiment shown in the drawings, the double-seal high-pressure grease injection valve of the present invention includes a valve body 1 and a valve tip 4. The valve tip 4 is placed in the inner cavity of the valve body 1 and supported on the valve body by the first spring (5-1). body (1); the upper part of the valve tip 4 is provided with a movable hard-sealed ball 2, and the hard-sealed ball 2 is supported on the upper part of the valve tip by the second spring 5-2, and the movable hard-sealed ball 2 and the grease injection hole 8 in the inner cavity of the valve form a Spherical line seal, the hard seal ball 2 can be a steel ball; the conical surface of the valve tip 4 is provided with an elastic sealing ring 3, and the elastic sealing ring 3 contacts and seals with the conical surface in the grease injection hole 8 of the valve inner cavity, and the elastic sealing ring 3. It is best to use fluorine rubber O-ring to adapt to the harsh environment. Grease is i...

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Abstract

The invention provides a dual sealing high pressure grease filling valve. The upper part of a valve tip is provided with a movable hard sealing ball; the movable hard sealing ball and a grease filling hole in an internal cavity of the valve body generate a ball-shaped linear sealing; the taper of the valve tip is provide with an elastic sealing ring which is hermetically contacted with the taper in the grease filling hole of the internal cavity of the valve body; the movable hard sealing ball and the grease filing hole in the internal cavity of the valve body generate the linear sealing closing and generate a sealing line; another sealing line is generated by the contact between the taper in the grease filling hole of the valve body and the rebounded elastic sealing ring on the taper of the valve tip. In the sealing structure of the invention, the interior of the valve body adopts the dual sealing between the movable hard sealing ball and the taper elastic sealing ring; when the sealing abrasion appears to the abrasion, the valve body bevel and the elastic sealing ring can take a compensation function, thus reaching the aim of preventing the medium leakage, and having good sealing performance and long service life, etc.

Description

technical field [0001] The invention relates to a high-pressure grease injection valve, in particular to a double-seal high-pressure grease injection valve. Background technique [0002] At present, domestically produced grease injection valves are single-sealed hard ball seals, and the materials selected, including the seal life, cannot meet the working conditions in high-pressure or harsh environments, resulting in the phenomenon of "running and leaking" grease, which cannot prevent the oil from acting on the valve. The lubrication effect of the overall valve has a great negative impact on the use of the overall valve. Contents of the invention [0003] In order to overcome the defects of the existing high-pressure grease injection valve, the invention provides a double-seal high-pressure grease injection valve. The double-seal high-pressure grease injection valve can well solve the problem of "running and leaking" in the overall valve lubrication system. [0004] The ...

Claims

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Application Information

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IPC IPC(8): F16N25/00
Inventor 李国标金进星
Owner 金星阀门有限公司
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