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Metering spray valve

A technology of spray valve and quantitative valve, which is applied in the direction of lift valve, valve device, liquid distribution, etc., can solve the problem of cumbersome methods that cannot realize quantitative spray, gas filling and liquid filling.

Active Publication Date: 2014-05-21
徐礼才
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The deficiency of above-mentioned prior art is: can not realize quantitative spraying;

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Such as figure 1 , the quantitative spray valve of this embodiment includes: an inner valve body 1, a quantitative valve chamber 3 arranged in the inner valve body 1, a sealing cover 4 sealingly fitted on the top of the quantitative valve chamber 3, and an axially penetrating sealing cover. 4 and the inner valve stem 5 of the quantitative valve chamber 3; the middle part of the inner valve stem 5 is provided with an annular boss 51, and a first sealing ring 6 is arranged between the quantitative valve chamber 3 and the sealing cover 4, and the first sealing ring 6 Seal fit with the upper rod body 52 above the annular boss 51 of the inner valve rod 5; the upper rod body 52 is provided with radially distributed liquid inlet holes 53 and axially distributed liquid discharge holes 54; The bottom of the liquid hole 54 communicates with the liquid inlet 53; the lower rod body of the inner valve rod 5 below the annular boss 51 is provided with a first annular cone surface 55, ...

Embodiment 2

[0035] On the basis of Embodiment 1, the quantitative spray valve of this embodiment has the following deformations:

[0036] See Figures 1 to 7 , in order to achieve the purpose of filling the soft bag through the inner valve stem, the quantitative spray valve provided in this embodiment also includes: an outer valve stem 7; the bottom of the outer valve stem 7 passes through the first sealing ring 6 and the The top of the quantitative valve chamber 3 is sealed and fit, the middle part of the outer valve stem 7 has an annular platform 71, and the second sealing ring 8 is passed between the rod body 73 above the annular platform 71 and the sealing cover 4 of the outer valve stem 7 sealing fit; the rod body 73 of the outer valve stem 7 above the annular platform 71 is provided with a radial through hole 72, and the two ends of the radial through hole 72 are in sealing fit with the inner ring of the second sealing ring 8 A first spring 12 is provided between the bottom of the ...

Embodiment 3

[0040] On the basis of Embodiment 2, the quantitative spray valve of this embodiment has the following deformations:

[0041] See Figures 9 to 10 , the inner wall of the lower end of the outer valve body 2 is provided with a sleeve 21, the lower end of the inner valve body 2 is a tubular part 1-2 with a diameter smaller than that of the inner valve body 2, and the tubular part 1-2 extends into the sleeve 21, the sleeve 21 is also covered with a snap ring 14 that makes the contact surface of the tubular part 1-2 and the sleeve 21 airtight, so that the contact surface of the inner valve body 2 and the outer valve body 2 airtight between. In order to improve the anti-leakage effect, a third sealing ring 15 is provided between the outer valve body 2 and the inner valve body 1 .

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PUM

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Abstract

The invention relates to a metering spray valve, which comprises an inner valve body, a metering valve chamber arranged in the inner valve body and an inner valve rod axially penetrating through the metering valve chamber, wherein the middle of the inner valve rod is provided with an annular boss; a first sealing ring is fixedly arranged on the metering valve chamber, and is in seal fit with an upper rod body, positioned above the annular boss, of the inner valve rod; the upper rod is provided with radially distributed liquid inlets and axially distributed liquid outlets; the bottoms of the liquid outlets are communicated with the liquid inlets; a lower rod body, positioned below the annular boss, of the inner valve rod is provided with a first annular conical surface; a bottom port of the metering valve chamber is provided with a second annular conical surface; the first annular conical surface and the second annular conical surface are opposite up and down; when the inner valve rod is pressed down and moves downwards until the liquid inlets in the inner valve rod are positioned below the first sealing ring, the first and second annular conical surfaces are in seal fit, liquid in the metering valve chamber can be only enabled to spray out, and a metering spraying function is realized.

Description

technical field [0001] The invention relates to a quantitative spray valve. Background technique [0002] Chinese patent ZL200810020952.4 relates to a spray valve with good airtightness and internal leakage prevention. The valve body includes: an inner valve body made of impermeable materials such as POM and an outer valve body made of weldable materials such as PE, and the outer valve body is sealed and sleeved on the outside of the inner valve body. When in use, the outer valve body is sealed and connected with the inlet of the soft bag. Since the outer valve body is made of PE material, it is convenient to make a sealed connection with the soft bag, but the PE material is permeable to gas, while the inner valve body is made of POM material. It has good strength and good air tightness, so its anti-permeation performance is better, so these two materials are made into the inner and outer valve body of the valve body respectively, which not only meets the needs of the valve...

Claims

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Application Information

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IPC IPC(8): B65D83/44B65D83/60B65D83/14F16K1/00
CPCB65D83/54B65D83/425B65D83/62
Inventor 徐礼才
Owner 徐礼才
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