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Self-sealing refueling gun with oil vapor recovery and pressure relief function

A refueling gun and functional technology, which is applied in the field of refueling equipment, can solve problems affecting equipment safety, fuel supply pipeline burst, and fuel supply pipeline pressure load increase, to achieve the effect of ensuring equipment safety and preventing bursting

Active Publication Date: 2016-04-06
WENZHOU ZHENGLING MACHINERY MFR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at the moment after the gun jumps, the oil supply pipeline generates instantaneous high pressure, which increases the pressure load of the oil supply pipeline, and in severe cases causes the oil supply pipeline to burst, which seriously affects the safety of the equipment

Method used

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  • Self-sealing refueling gun with oil vapor recovery and pressure relief function
  • Self-sealing refueling gun with oil vapor recovery and pressure relief function
  • Self-sealing refueling gun with oil vapor recovery and pressure relief function

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Embodiment Construction

[0014] This will be further described below in conjunction with the accompanying drawings with specific embodiments, see Figure 1-Figure 3 ;

[0015] The self-styled refueling gun provided in this embodiment has the functions of oil gas recovery and pressure relief. This self-styled refueling gun also has the characteristics of methanol resistance and low temperature resistance. It includes a gun body 1 , a main valve 2 , a push rod 3 , a valve core 4 , a second compression spring 5 and a supporting part 6 . In the gun body 1 there is a refueling passage 7, an oil inlet passage 8 and a main valve chamber 9, and the oil inlet passage 8 is connected with the refueling passage 7 through the main valve chamber 9, which forms the flow of fuel on the gun body road. A valve seat 10 is formed on the gun body 1 at the adjoining position between the main valve cavity 9 and the oil filling passage 7 . The main valve 2 includes a valve disc 11, a first compression spring 12 and a gask...

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Abstract

The invention discloses a self-sealing type oiling gun with oil vapor recovery and pressure relief functions. According to the self-sealing type oiling gun, automatic pressure relief can be achieved by means of the generated high pressure when oiling is stopped in order to guarantee safety of equipment. The self-sealing type oiling gun comprises a gun body, a main valve and an ejector rod. The main valve comprises a valve clack, a first compression spring, a sealing gasket, a valve element, a second compression spring and a supporting portion. The valve element is formed by a head portion and a body portion, a sealing ring is arranged on the head portion, an accommodating cavity and a through hole are formed in the valve clack, and the accommodating cavity is communicated with the through hole. The body portion of the valve element penetrates through the through hole, the valve element is in slide fit with the valve clack, the head portion is contained in the accommodating cavity, one end of the second compression spring abuts against the valve clack, and the other end of the second compression spring abuts against the supporting portion. The supporting portion is arranged on the end portion of the valve element and enables the head portion to be tightly pressed on the cavity wall of the accommodating cavity by means of the second compression spring, the head portion is in seal fit with the valve clack through the sealing ring, and a pressure relief hole is formed in the valve clack.

Description

technical field [0001] The invention belongs to the technical field of refueling equipment, and in particular relates to a self-styled refueling gun with functions of oil gas recovery and pressure relief. Background technique [0002] At present, the structure of the self-sealing fuel gun on the market includes a gun body, a main valve, a handle assembly and a self-sealing control valve. When the self-styled refueling gun with this structure is used for refueling operations, when the refueling container is full, gun jumping occurs due to the action of the self-styled control valve, so that the refueling gun stops continuing to refuel the refueling container. However, at the moment after the gun jumps, the oil supply pipeline generates instantaneous high pressure, which increases the pressure load of the oil supply pipeline, and in severe cases causes the oil supply pipeline to burst, which seriously affects the safety of the equipment. Contents of the invention [0003] T...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B67D7/44
Inventor 林松龄
Owner WENZHOU ZHENGLING MACHINERY MFR
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