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Oil spillage cutoff valve

A cut-off valve and oil spill technology, applied in valve details, valve devices, valve operation/release devices, etc., can solve problems such as the inability to adjust the air pressure of the fuel tank, and achieve the effect of normal air pressure

Inactive Publication Date: 2011-11-02
孙达立
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current oil spill cut-off valve has the following problems: when the fuel tank is tilted or filled with oil, the air pressure in the fuel tank cannot be adjusted when the valve floating core is closed

Method used

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Embodiment Construction

[0015] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0016] An oil spill shut-off valve, comprising a valve body 1, on which a main valve cover 2 is arranged, the valve body 1 includes an upper end cover 3 and a valve bottom cover 4, and a sealing seal with a first vent hole 23 is arranged in the middle of the upper end cover 3 Part 5, the main valve cover 2 above the upper end cover 3 is provided with a pressure maintaining valve, the valve body 1 is provided with a valve floating core 6 that can float up and down, and a first spring 7 is provided between the valve bottom cover 4 and the valve floating core 6 , the pressure maintaining valve cooperates with the sealing member 5, the valve floating core 6 cooperates with the sealing member 5, a second air hole 8 is arranged in the middle of the valve floating core 6, and a pressure relief valve core 9 is arranged below the second air hole 8, and ...

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Abstract

The invention discloses an oil spillage cutoff valve, which comprises a valve body and a total valve cover, wherein the valve body comprises an upper end cover and a valve bottom cover; a sealing element with a first vent is arranged in the middle of the upper end cover; a pressure holding valve is arranged in the total valve cover above the upper end cover; a valve floating core capable of floating up and down is arranged in the valve body; a first spring is arranged between the valve bottom cover and the valve floating core; the middle of the valve floating core is provided with a second vent; a pressure relief valve core is arranged below the second vent, and the pressure relief valve core is arranged in the valve floating core; a second spring is arranged between the pressure relief valve core and the valve floating core; in a stretching state of the second spring, the pressure relief valve core closes the second vent; and when the second spring is compressed, the second vent is conducted through the pressure relief valve core. The oil spillage cutoff valve has the advantages that: when an oil tank is inclined or full of oil, if the pressure in the oil tank exceeds a certain value, the high air pressure bursts through the pressure relief valve core, the second spring is compressed, the second vent in the middle of the valve floating core is conducted, and the gas in the oil tank is exhausted from the second vent, so that normal air pressure in the oil tank is ensured.

Description

technical field [0001] The invention relates to a valve body, in particular to an oil spill cut-off valve. Background technique [0002] An oil spill cut-off valve is usually installed on the vehicle fuel tank, which has the following functions: 1) When the vehicle fuel tank is filled with oil, the vehicle fuel tank and the atmosphere have a certain passage through the overflow cut-off valve; and when the vehicle fuel tank is filled with fuel, The spill shut-off valve automatically closes to prevent fuel from spilling out of the spill shut-off valve. 2) The last important thing is that when the position of the fuel tank changes suddenly (such as the vehicle overturns), the overflow shut-off valve will stop the fuel from flowing out. The current oil spill cut-off valve has the following problems: when the fuel tank is tilted or filled with oil, the air pressure in the fuel tank cannot be adjusted when the valve floating core is closed. Contents of the invention [0003] T...

Claims

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Application Information

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IPC IPC(8): B60K15/077F16K31/18
Inventor 孙达立
Owner 孙达立
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