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Mechanical type seal valve

A kind of sealing valve, mechanical technology, applied in the direction of engine sealing, mechanical equipment, valve details, etc., can solve the problem that the Z-direction height cannot achieve liquid sealing and so on

Pending Publication Date: 2018-08-24
武汉腾索科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for some vehicles whose oil filling pipe is relatively short, and the Z-direction height difference from the oil filling port to the oil filling port is too low to realize liquid sealing, only mechanical seals can be used, and mechanical sealing valves have emerged as the times require.

Method used

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  • Mechanical type seal valve
  • Mechanical type seal valve
  • Mechanical type seal valve

Examples

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Embodiment Construction

[0016] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0017] like Figure 1~3 As shown, the present invention provides a mechanical seal valve, which includes a casing 1 , a sealing ring 2 and a lining 3 , and the sealing ring 2 and the lining 3 are arranged in the casing 1 .

[0018] The housing 1 has a top 1A and a shoulder 1B. The top 1A is annular, and its upper end surface has at least one group of radially symmetrical notches 11. The outer edge of the middle part of the top 12 is radially contracted to form an annular groove 12. Inside the groove 12 A sealing ring 121 is arranged around the ring, and the shoulder 1B is formed by shrinking and extending downwards from the edge of the top 1A. The upper end 13 and the lower end 14 of the shoulder 1B are ring-shaped,...

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Abstract

The invention relates to a mechanical type seal valve. The seal valve comprises a shell, a seal ring and a lining; the seal ring and the lining are arranged in the shell, the shell is provided with atop portion and a shoulder portion, the top portion is annular, a seal circle is arranged in the middle of the top portion, the shoulder portion is formed in a manner the edge of the top portion extends downwards towards the central axis, the upper end and the lower end of the shoulder portion are arranged eccentrically, the shoulder portion is provided with a first semi-cycle side face and a second semi-cycle side face, at least one ventilation hole is formed in the second semi-cycle side face, and a pressure relief device is arranged in each ventilation hole. A supporting table is arranged on the lower end of the shoulder portion, the seal ring abuts against the supporting table, the lining is in abut joint with the seal ring, the lining is matched with two notches of the shell, and at least one square hole is annularly formed in the position, corresponding to the second semi-cycle side face, of the middle of the lining. The valve is suitable for vehicles below 4.5 tons, and the problem that an oil filling pipe is short, and liquid seal cannot be achieved is solved.

Description

technical field [0001] The invention relates to the technical field of automobile refueling devices, in particular to a mechanical sealing valve. Background technique [0002] The promulgation of the National VI regulations has stricter requirements on the evaporative emissions of the fuel system. In order to reduce the HC emissions during the refueling process and ensure the passing of the ORVR test, the fuel tank filling port is generally sealed with a liquid seal or a mechanical seal, because the liquid seal The type has no seal wear, no durability problem, and the cost is relatively low, so it has a high market share. However, for some vehicles whose oil filling pipe is relatively short, and the Z-direction height difference from the oil filling port to the oil filling port is too low to realize liquid sealing, only mechanical seals can be used, and mechanical sealing valves have emerged as the times require. [0003] like Figure 4 As shown, since there are gaps betwee...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K17/02F16K27/00F16K51/00F16J15/06B67D7/42B67D7/04
CPCF16J15/06F16K17/02F16K27/00F16K51/00B67D7/04B67D7/42
Inventor 冉林李卫民段文强
Owner 武汉腾索科技有限公司
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