CN101968048A - Miniature air pump and one-way valve for same - Google Patents
Miniature air pump and one-way valve for same Download PDFInfo
- Publication number
- CN101968048A CN101968048A CN 201010537745 CN201010537745A CN101968048A CN 101968048 A CN101968048 A CN 101968048A CN 201010537745 CN201010537745 CN 201010537745 CN 201010537745 A CN201010537745 A CN 201010537745A CN 101968048 A CN101968048 A CN 101968048A
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- air pump
- way valve
- metal gasket
- small air
- seal ring
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Abstract
The invention discloses a miniature air pump and a one-way valve for the same. The one-way valve is formed by assembling a cavity seal, an elastic arm, a metal gasket and a sealing ring together, wherein the elastic arm extends inwards from the cavity seal and is connected with the upper end of the metal gasket, and the sealing ring is fixed at the bottom end of the metal gasket. The one-way valve of the invention can be applied to the one-way sealing of gas up to 20 MPa, has the advantages of small space occupation, corrosion resistance, easy mounting, and the like, simplifies the one-way valve structure of the air pump and is suitable for modern manufacturing.
Description
Technical field
The invention belongs to mechanical field, be specifically related to a kind ofly be used for the one-way valve structures that small air pump can be sealed high-pressure gas, and the small air pump of using this one-way valve.
Background technique
In the pressure instrument verification process, need to produce high pressure compressed gas, reach under a certain force value situation at pressure, according to plunger type air pump principle, need to install additional one-way valve in the air pump with the sealing high-pressure gas.The one-way valve of traditional approach design, all be to promote obturator with spring and guide elements as precompression to make that seal ring deforms above it, form sealing, the sealing of its cavity also will increase the cavity seal ring and form whole sealing means, this one-way valve needs 4～5 kinds of parts, cause structural member processing request height, relative complex is installed, and the effect of sealing over time can be destroyed, carbon steel wire can be separated out liquid after air compression, directly corrode spring, after stainless steel spring used a period of time, spring-back force reduced the damage that directly causes sealing effect.
Summary of the invention
The object of the present invention is to provide and a kind ofly can simplify the traditional design thinking, reduce processing accessories, install simplely, can seal the small air pump one-way valve of high-pressure gas.
Small air pump one-way valve of the present invention is assembled by cavity sealing, elasticity arm, metal gasket and seal ring, and wherein, elasticity arm is extended internally by the cavity sealing, and is connected the bottom fixed seal ring of metal gasket with the upper end of metal gasket.
Wherein, described cavity is sealed into loop configuration, makes with elastic material.
Described elasticity arm and cavity sealing are connected as a single entity, and for the list structure that extends internally, make with elastic material.
Described metal gasket is discoid, and annular slot is established on top, and the elasticity arm termination is stuck in this draw-in groove.
An annular groove is established in the bottom of described metal gasket, and seal ring is fixed in this groove.
Another purpose of the present invention is to provide a kind of small air pump.
This small air pump comprises pressurized gas input device and cylinder, at pressurized gas output terminal and cylinder joint aforesaid one-way valve is installed, and the bottom of metal gasket that is fixed with seal ring is towards the pressurized gas output terminal.
Adopt above design, one-way valve of the present invention can be applied to high to the sealing of 20MPa gas unidirectional, and have take up room little, corrosion-resistant, be easy to characteristics such as installations, simplified the air pump one-way valve structures, be fit to modern production and process.Small air pump of the present invention have good seal, pressurization accurately, effect such as long service life.
Description of drawings
Fig. 1 is the cross-sectional view of one-way valve of the present invention;
Fig. 2 is Fig. 1 plan view.
Embodiment
One-way valve of the present invention, comprise cavity sealing 1, elasticity arm 2, metal gasket 3 and seal ring 4, wherein, cavity sealing 1 is a loop configuration, be the outer support and the sealing of total, be installed on the interplanar of two needs sealings, form seal chamber, also the sealing of structure is as a whole made with elastic material; Elasticity arm 2 utilizes the elasticity of its rubber to stretch for by cavity sealing 1 list structure that extends internally, and elasticity arm 2 bottoms seal 1 top with cavity and are connected; Metal gasket 3 is shaped as discoidly, and upper, annular draw-in groove 31 is used for inlaying elasticity arm 2 to be made it be stuck in this draw-in groove 31 to be connected with metal gasket 2 tops, and an annular groove 32 is established in the bottom of metal gasket 3, places seal ring 4 in it; Seal ring 4 is " O " RunddichtringO of standard, is fixed in the lower recess 32 of metal gasket 3.
After the present invention's assembling, but between the pressurized gas output and cylinder connection of integral installation in desk-top pneumatic pump (as the ConST162 type of Beijing Kang Site company), the smooth flat of one-way valve (lower surface of Fig. 1 locality) is connected on the pressurized gas output terminal, form unidirectional air inlet: the metal gasket 3 that gas compression promotes to stud with " O " RunddichtringO 4 one sides in cylinder moves (by Fig. 1 locality for moving up), seal ring also moves thereupon, one-way valve of the present invention is in open mode, and the pressurized gas of compression are pushed in the pressurized gas output pipe; In the cylinder piston return stroke, elasticity arm 2 drives metal gaskets 3 reversing motions (by Fig. 1 locality for moving downward), and compresses seal 4 makes it to produce plane sealing, and pressurized gas are closed in the needed cavity like this, have finished the requirement of sealing high pressure.Pressurized gas and external environment condition are kept apart in cavity sealing 1 in whole process, elasticity arm 2 support metal pads 3 and the seal ring 4 by being attached thereto simultaneously, formation integral sealing space.
The present invention directly provides precompression by an elasticity arm that is linked as with the cavity sealing, has removed spring of the prior art; Also fixed simultaneously the position of inlaying the seal ring metal gasket of core, removed guide elements of the prior art, metal gasket moves forward and backward compresses seal just can form one-way sealing, outside cavity sealing has also made the complete sealing of whole sealing configuration, this invention can be applied to high to the sealing of 20MPa gas unidirectional, and the size of pretightening force is adjusted by the cross-sectional sizes of seal hardness and elasticity arm.
That this check valve takes up room is little, corrosion-resistant, be easy to the characteristics such as installation, has simplified the air pump one-way valve structures, is the needed invention that is fit to modern production processing.
Claims (6)
1. a small air pump one-way valve is characterized in that, is assembled by cavity sealing, elasticity arm, metal gasket and seal ring, and wherein, elasticity arm is extended internally by the cavity sealing, and is connected the bottom fixed seal ring of metal gasket with the upper end of metal gasket.
2. according to the described small air pump one-way valve of claim 1, it is characterized in that described cavity is sealed into loop configuration, makes with elastic material.
3. according to claim 1 or 2 described small air pump one-way valves, it is characterized in that described elasticity arm and cavity sealing are connected as a single entity, and for the list structure that extends internally, make with elastic material.
4. according to claim 1 or 2 or 3 described small air pump one-way valves, it is characterized in that described metal gasket is discoid, annular slot is established on top, and the elasticity arm termination is stuck in this draw-in groove.
5. according to claim 1 or 2 or 3 or 4 described small air pump one-way valves, it is characterized in that an annular groove is established in the bottom of described metal gasket, seal ring is fixed in this groove.
6. small air pump, comprise pressurized gas input device and cylinder, it is characterized in that, the arbitrary described one-way valve of claim 1 to 5 is installed, and the bottom of metal gasket that is fixed with seal ring is towards the pressurized gas output terminal at pressurized gas output terminal and cylinder joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010537745 CN101968048B (en) | 2010-11-05 | 2010-11-05 | Miniature air pump and one-way valve for same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010537745 CN101968048B (en) | 2010-11-05 | 2010-11-05 | Miniature air pump and one-way valve for same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101968048A true CN101968048A (en) | 2011-02-09 |
| CN101968048B CN101968048B (en) | 2013-06-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010537745 Active CN101968048B (en) | 2010-11-05 | 2010-11-05 | Miniature air pump and one-way valve for same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101968048B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102182665A (en) * | 2011-05-26 | 2011-09-14 | 北京康斯特仪表科技股份有限公司 | High-pressure bidirectional miniature power-driven air pump |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999034139A1 (en) * | 1997-12-24 | 1999-07-08 | Thomas Dudley Limited | Float valve for w.c. cistern |
| CN2627305Y (en) * | 2003-05-18 | 2004-07-21 | 沈李相 | Non-return flap valve |
| CN2924212Y (en) * | 2006-07-14 | 2007-07-18 | 季志刚 | Loose-joint non-return valve |
| CN101139987A (en) * | 2007-09-19 | 2008-03-12 | 杨八康 | Valve used for agricultural atomizer diaphragm pump |
| CN201843756U (en) * | 2010-11-05 | 2011-05-25 | 北京康斯特仪表科技股份有限公司 | One-way valve for mini air pump and mini air pump |
-
2010
- 2010-11-05 CN CN 201010537745 patent/CN101968048B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999034139A1 (en) * | 1997-12-24 | 1999-07-08 | Thomas Dudley Limited | Float valve for w.c. cistern |
| CN2627305Y (en) * | 2003-05-18 | 2004-07-21 | 沈李相 | Non-return flap valve |
| CN2924212Y (en) * | 2006-07-14 | 2007-07-18 | 季志刚 | Loose-joint non-return valve |
| CN101139987A (en) * | 2007-09-19 | 2008-03-12 | 杨八康 | Valve used for agricultural atomizer diaphragm pump |
| CN201843756U (en) * | 2010-11-05 | 2011-05-25 | 北京康斯特仪表科技股份有限公司 | One-way valve for mini air pump and mini air pump |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102182665A (en) * | 2011-05-26 | 2011-09-14 | 北京康斯特仪表科技股份有限公司 | High-pressure bidirectional miniature power-driven air pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101968048B (en) | 2013-06-05 |
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