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Check valve for preventing leakage of oil tank

An anti-leak, check valve technology, applied in the direction of control valve, valve device, functional valve type, etc., can solve the problem of valve discharge not meeting the standard, and achieve the effect of reducing gasoline volatilization

Inactive Publication Date: 2011-04-06
JIANGSU AOLIWEI SENSING TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides an anti-leakage check valve for a fuel tank, the purpose of which is to avoid safety accidents caused by oil leakage after the vehicle is tilted in motion and to solve the defect that the discharge of existing valve parts cannot meet the standard

Method used

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  • Check valve for preventing leakage of oil tank
  • Check valve for preventing leakage of oil tank
  • Check valve for preventing leakage of oil tank

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Experimental program
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Embodiment Construction

[0015] like figure 1 As shown, the fuel tank anti-leakage check valve includes a valve body 1, an upper cover 2, a bottom support 4, a valve core 3, a valve plate 5, a clip 6, and a spring 7. The upper cover 2 is connected to the upper end of the valve body 1, The bottom bracket 4 is connected to the lower end of the valve body 1, the valve core 3 is arranged in the valve body 1, a spring 7 is set between the valve core 3 and the bottom bracket 4, the valve plate 5 is fixedly connected to the upper top of the valve core 3, and the The upper part of the body 1 is sleeved with a clamp 6, and the clamp 6 is arranged under the upper cover 3. The center of the upper end surface of the valve body 2 is provided with a through hole 9, and the center of the upper cover 2 and the bottom support 4 are respectively provided with a through hole 10. , 11, a metal head valve 8 is set between the upper end surface of the valve body 1 and the upper cover 2, the metal head valve 8 is a disc, an...

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Abstract

The invention discloses a check valve for preventing leakage of an oil tank, which relates to the technical field of manufacture of valves and comprises an upper cover, a bottom bracket, a valve core, a valve sheet, a clamp and a spring, wherein the upper cover is connected with the upper end of a valve body; the bottom bracket is connected with the lower end of the valve body; the spring is arranged between the valve core and the bottom bracket; the valve sheet is fixedly connected to the upper top end of the valve core; the clamp is sleeved on the upper part of the valve body; a through hole is arranged in the center of the upper end surface of the valve body; through holes are respectively arranged in the centers of the upper cover and the bottom bracket; a metal head valve is arranged between the upper end surface of the valve body and the upper cover; the metal head valve is a circular plate; a circular boss is arranged in the middle of the circular plate; at least two through holes and at least three convex claws are uniformly distributed on the circular plate on the periphery of the circular boss; the height of the convex claws is larger than that of the boss; and the circular boss and the convex claws face the valve body. The check valve can be used for cutting an oil path in proper time, eliminating hidden danger of vehicle safety accidents caused by leakage of oil, and reducing the volatilization of gasoline so that the automobile emission achieves national standards.

Description

technical field [0001] The invention relates to the technical field of manufacturing a valve, in particular to the technical field of manufacturing a check valve used on an automobile fuel tank. Background technique [0002] The existing oil tank anti-leakage check valve includes a valve body, an upper cover, a bottom bracket, a valve plate, a valve core, a spring, and a clamp. The upper cover is connected to the upper end of the valve body, and the bottom bracket is connected to the The lower end of the valve body, the valve core is arranged in the valve body, the valve plate is fixedly arranged on the upper top end of the valve core, the clip is arranged between the valve body and the upper cover, and the The upper cover and the middle part of the bottom bracket are respectively provided with through holes, and the middle part of the upper end surface of the valve body is provided with through holes. The above-mentioned valve parts cannot control the amount of gasoline vol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K15/00
Inventor 孙海鑫倪兴平程绍龙戴兆喜高计超
Owner JIANGSU AOLIWEI SENSING TECH
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