CN2403966Y - Non-return valve - Google Patents
Non-return valve Download PDFInfo
- Publication number
- CN2403966Y CN2403966Y CN 00200095 CN00200095U CN2403966Y CN 2403966 Y CN2403966 Y CN 2403966Y CN 00200095 CN00200095 CN 00200095 CN 00200095 U CN00200095 U CN 00200095U CN 2403966 Y CN2403966 Y CN 2403966Y
- Authority
- CN
- China
- Prior art keywords
- valve body
- valve
- boss
- spool
- cylindrical drum
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Check Valves (AREA)
Abstract
The utility model relates to a special valve used for air bleed (liquid) or gas (liquid), which is composed of a valve body, a valve core, a pressure spring, a screw with a hole, a sealing cap and a plurality of sealing rings. The valve core is arranged in the valve body and tightly connected with the screw with the hole by the pressure spring. The valve core is provided with an air intake hole and a sealing ring of the valve core, an inlet sealing ring of the valve body and a boss sealing ring of the valve body are arranged on the valve body, and the sealing cap is tightly connected with the valve body by a screw mouth. The utility model has the advantages of good tightness, convenient operation and simple machining. The utility model can be widely used in the industries such as power industry, aviation industry, vacuum equipment, etc.
Description
The utility model is a kind of special valve that is used to bleed (liquid) or inflates (liquid), can be widely used in power industry, aviation industry and the vacuum equipment.
The check valve in past, spool and valve body are the single-stage plane sealing, sealability is unreliable, often, valve causes the accident because of leaking, and the pressure spring that plane sealing need be bigger, operation is very inconvenience also.
The purpose of this utility model is in order to improve the valve seal performance, and makes it easy and simple to handle, to guarantee quality of product, the generation of minimizing accident, and custom-designed a kind of new type check valve.
The utility model is realized as follows: the utility model comprises valve body, spool, and pressure spring, bleed screw, sealed cap, seal ring, valve block internal diameter are divided into two sections of thickness, and there is a valve body boss in its outside; There is a spool boss at the spool middle part, spool boss left end is a projection, be with pressure spring on it, right-hand member is a cylindrical drum, the cylindrical drum outer wall is provided with valve core seal ring, and cylindrical drum places an end thinner in the valve body, and the spool boss is stuck in the jointing place of two sections of valve body thicknesses, valve core seal ring then connects airtight with valve interior wall, realizes sealing.Bottom periphery in the cylindrical drum has some valve core holes, the end that valve body is thicker connects with bleed screw, bleed screw inner fluted, pressure spring places in the groove, pressure spring makes the spool boss be pressed on the jointing place of two sections of valve body thicknesses, valve body outside right-hand member is provided with valve body inlet seal circle, and valve body boss place is provided with valve body boss seal ring, and sealed cap should connect with valve body by screw socket and seals by valve body inlet seal circle and the realization of valve body boss seal ring from the valve body right-hand member.
During use, screw off sealed cap, pass through special device, earlier spool is advanced left, make valve core seal ring cross the jointing place of two sections of valve body thicknesses, make it inflation (or bleeding) by inflation (bleeding) machine then, gas is by valve core hole turnover, after filling (taking out) gas and finishing, screws on sealed cap.
Be described further this usefulness is novel below in conjunction with accompanying drawing.
Fig. 1 is the utility model structural drawing.
Among the figure: 1 valve body, 2 valve body boss, 3 spools, 4 spool boss, 5 projections, 6 cylindrical drum, 7 valve core holes, 8 pressure springs, 9 valve core seal rings, 10 valve body inlet seal circles, 11 valve body boss seal rings, 12 sealed caps, 13 bleed screws.
As shown in Figure 1, be provided with spool 3 in the valve body 1, valve body 1 outside is provided with valve body boss 2, valve body inlet seal circle 10 and valve body boss seal ring 11, spool 3 is made up of projection 5, cylindrical drum 6, spool boss 4 and valve core seal ring 9, bottom in the cylindrical drum has valve core hole 7, be with pressure spring 8 on the projection 5, the left end of valve body 1 and bleed screw 13 spiral shells are tied it, the groove of bleed screw 13 inboards is pressed on the pressure spring 8, sealed cap 12 is tied it by valve body inlet seal circle 10 and valve body boss seal ring 11 with valve body 1 spiral shell.
The utility model has the advantages that:
1. this non-return valve is provided with three grades of linear sealings, and sealing property is reliable.
2. its machining accuracy and fineness are only required and are reached moderate, so easily processing.
3. this non-return valve is linear sealing, and spring pressure is little, and is easy to operate.
Claims (2)
1. check valve, by valve body, spool, pressure spring, bleed screw, Sealing is formed, valve block internal diameter is divided into two sections of thicknesses, and there is a valve body boss in its outside, and the spool middle part is provided with the spool boss, it is characterized in that the left end of spool boss is a projection, be with pressure spring on it, right-hand member is a cylindrical drum, and the cylindrical drum outer wall is provided with valve core seal ring, and cylindrical drum is located at an end thinner in the valve body, the spool boss is stuck in the jointing place of two sections of valve body thicknesses, and valve core seal ring then connects airtight with valve interior wall; Bottom periphery in the cylindrical drum has some valve core holes, end that valve body is thicker and bleed screw connect, the inner recess of bleed screw is pressed on the pressure spring, valve body outside right-hand member is provided with valve body inlet seal circle, valve body boss place is provided with valve body boss seal ring, and sealed cap process valve body inlet seal circle and valve body boss seal ring and valve body spiral shell are tied it.
2. check valve according to claim 1 is characterized in that: valve core hole is four, and is evenly distributed on the periphery of spool cylindrical drum bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00200095 CN2403966Y (en) | 2000-01-05 | 2000-01-05 | Non-return valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00200095 CN2403966Y (en) | 2000-01-05 | 2000-01-05 | Non-return valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2403966Y true CN2403966Y (en) | 2000-11-01 |
Family
ID=33569660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00200095 Expired - Fee Related CN2403966Y (en) | 2000-01-05 | 2000-01-05 | Non-return valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2403966Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102597586A (en) * | 2009-11-12 | 2012-07-18 | 施拉德布里奇波特国际股份有限公司 | Pressure regulator valve seals, systems and methods |
| CN104930206A (en) * | 2014-03-17 | 2015-09-23 | 麦格纳斯太尔工程两合公司 | Stop valve |
| CN107110137A (en) * | 2014-11-13 | 2017-08-29 | 学校法人斗源学院 | Displacement-variable swashplate compressor |
| CN107504233A (en) * | 2017-09-12 | 2017-12-22 | 陕西飞机工业（集团）有限公司 | A kind of unidirectional oxygenation adapter of aircraft oxygen system |
-
2000
- 2000-01-05 CN CN 00200095 patent/CN2403966Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102597586A (en) * | 2009-11-12 | 2012-07-18 | 施拉德布里奇波特国际股份有限公司 | Pressure regulator valve seals, systems and methods |
| CN104930206A (en) * | 2014-03-17 | 2015-09-23 | 麦格纳斯太尔工程两合公司 | Stop valve |
| CN104930206B (en) * | 2014-03-17 | 2018-06-19 | 麦格纳斯太尔工程两合公司 | Shut-off valve |
| CN107110137A (en) * | 2014-11-13 | 2017-08-29 | 学校法人斗源学院 | Displacement-variable swashplate compressor |
| CN107504233A (en) * | 2017-09-12 | 2017-12-22 | 陕西飞机工业（集团）有限公司 | A kind of unidirectional oxygenation adapter of aircraft oxygen system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |