CN201843756U - One-way valve for mini air pump and mini air pump - Google Patents
One-way valve for mini air pump and mini air pump Download PDFInfo
- Publication number
- CN201843756U CN201843756U CN2010205988490U CN201020598849U CN201843756U CN 201843756 U CN201843756 U CN 201843756U CN 2010205988490 U CN2010205988490 U CN 2010205988490U CN 201020598849 U CN201020598849 U CN 201020598849U CN 201843756 U CN201843756 U CN 201843756U
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- CN
- China
- Prior art keywords
- air pump
- way valve
- metal gasket
- small air
- seal ring
- 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 - Lifetime
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Abstract
The utility model discloses a one-way valve for a mini air pump and a mini air pump. The one-way valve is formed by assembling a cavity seal, a resilient arm, a metal gasket and a sealing ring, wherein the resilient 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 can be applied to the one-way closing of gas with pressure being as high as 20MPa, has the characteristics of being small in occupied space, corrosion-resistant, easy to install and the like, simplifies the structure of one-way valves of air pumps, and is suitable for modern production and process.
Description
Technical field
The utility model belongs to mechanical field, is 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.
The model utility content
The purpose of this utility model is to provide a kind of can simplify the traditional design thinking, reduces processing accessories, installs simplely, can seal the small air pump one-way valve of high-pressure gas.
The utility model small air pump one-way valve 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 utility model 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, the utility model one-way valve 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 utility model have good seal, pressurization accurately, effect such as long service life.
Description of drawings
Fig. 1 is the cross-sectional view of the utility model one-way valve;
Fig. 2 is Fig. 1 plan view.
Embodiment
One-way valve of the present utility model, 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 utility model 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, the utility model one-way valve 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 utility model 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 model utility 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 one-way valve takes up room is little, corrosion-resistant, be easy to characteristics such as installation. and simplify the air pump one-way valve structures, be fit to the needs of modern production processing.
Claims (7)
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 the described small air pump one-way valve of claim 1, it is characterized in that described cavity is sealed into loop configuration, 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 described small air pump one-way valves, it is characterized in that described metal gasket is discoid, an annular groove is established in its bottom, and seal ring is fixed in this groove.
6. according to the described small air pump one-way valve of claim 4, it is characterized in that an annular groove is established in described metal gasket bottom, seal ring is fixed in this groove.
7. a small air pump comprises pressurized gas input device and cylinder, it is characterized in that, at pressurized gas output terminal and cylinder joint the described one-way valve of claim 6 is installed, and the bottom of metal gasket that is fixed with seal ring is towards the pressurized gas output terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205988490U CN201843756U (en) | 2010-11-05 | 2010-11-05 | One-way valve for mini air pump and mini air pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205988490U CN201843756U (en) | 2010-11-05 | 2010-11-05 | One-way valve for mini air pump and mini air pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201843756U true CN201843756U (en) | 2011-05-25 |
Family
ID=44038648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205988490U Expired - Lifetime CN201843756U (en) | 2010-11-05 | 2010-11-05 | One-way valve for mini air pump and mini air pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201843756U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101968048A (en) * | 2010-11-05 | 2011-02-09 | 北京康斯特仪表科技股份有限公司 | Miniature air pump and one-way valve for same |
-
2010
- 2010-11-05 CN CN2010205988490U patent/CN201843756U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101968048A (en) * | 2010-11-05 | 2011-02-09 | 北京康斯特仪表科技股份有限公司 | Miniature air pump and one-way valve for same |
| CN101968048B (en) * | 2010-11-05 | 2013-06-05 | 北京康斯特仪表科技股份有限公司 | Miniature air pump and one-way valve for same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110525 Effective date of abandoning: 20130605 |
|
| RGAV | Abandon patent right to avoid regrant |