CN101008456A - Self-locked valve - Google Patents
Self-locked valve Download PDFInfo
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- CN101008456A CN101008456A CN 200610006095 CN200610006095A CN101008456A CN 101008456 A CN101008456 A CN 101008456A CN 200610006095 CN200610006095 CN 200610006095 CN 200610006095 A CN200610006095 A CN 200610006095A CN 101008456 A CN101008456 A CN 101008456A
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- valve
- self
- valve body
- diameter
- spool
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Abstract
The invention discloses a self-locking valve made from plastic, wherein, the taper degrees of engaged valve and valve element is lower than 45 degrees. In aeration, the invention uses external gas pressure to open the valve and aerate the internal space; when the internal space is filled with gas, the pressure of internal space can close the valve. The invention can close the valve even when the internal gas is consumed.
Description
Technical field
The present invention relates to a kind of valve, particularly a kind ofly can under the gas internal pressure, close and keep the self-locked valve of self-locking automatically.
Background technique
Install inner space when inflation at needs to certain, at inflation inlet valve body is housed usually, open valve body during inflation, when gas is full of, valve body need be closed, and valve is remained on closed condition in the process that reduces in internal gas consumption always, prevent that ambient atmos from entering and internal gas is overflowed.In the prior art adopt screw threads or cam mechanism more, and external air pressure, oil pressure, electronic, magnetic means starts or throttle down.The structure of these devices and operation are generally all complicated, thereby have increased the complexity and the manufacture cost of whole system.
Summary of the invention
Be to solve the problems referred to above that exist in the existing product, the object of the present invention is to provide a kind of simple in structurely, can utilize the internal pressure throttle down of gas and realize the valve mechanism of self-locking.
For achieving the above object, the invention provides a kind of self-locked valve, comprise valve body, spool and spacing guide pin bushing, wherein, valve body is a cylindrical housings, have inlet end, outlet side and internal cavities, internal cavities comprises the first cone shape hole part that diameter is reduced to the direction of outlet side gradually by inlet end, the second cylindrical hole part, the third hand tap shape bore portion that diameter is increased to the outlet side direction gradually by inlet end, diameter is greater than the 4th cylindrical hole part of the maximum diameter of third hand tap shape bore portion; Spool comprises column part and conical section, column part partly cooperates with second cylindrical hole, length is partly longer than second cylindrical hole, periphery at column part has at least one vent slot longitudinally, conical section cooperates with third hand tap shape bore portion, tapering equates that with it conical section comprises that towards the conical cavity of valve body outlet side opening, the maximum diameter of conical section is less than the diameter of the 4th column part; Spacing guide pin bushing is enclosed within on the outlet side of valve body, inwardly limits the maximum displacement of spool, stretches at spacing guide pin bushing and forms one or more air inlet breach on the end of valve inner cavity.
Valve body and spool are made by plastics, and the tapering of the third hand tap shape bore portion of valve body and the conical section of spool is less than 45 °.
Self-locked valve of the present invention is when inflation, utilize the external gas pressure to open valve and charge into gas to the inner space, when the gassy of inner space, the pressure effect of internal gas makes valve closing, utilize the valve special structural design to make valve keep self-locking, even internal gas is consumed and reduces gradually, valve still can keep closed condition.Compared with prior art, valve mechanism of the present invention is simple, helps to simplify the structure of the whole system of using this valve and reduce manufacture cost.
Description of drawings
Describe the present invention in detail with reference to the following drawings below.
Fig. 1 is in the schematic representation of closing with self-locking state for self-locked valve of the present invention, wherein spool part by partly cut-away to show its internal structure;
Fig. 2 is the schematic representation of self-locked valve valve shell of the present invention;
The schematic representation that Fig. 3 opens under inflated condition for self-locked valve of the present invention.
Embodiment
As shown in the figure, self-locked valve of the present invention comprises valve body 1, spool 2 and spacing guide pin bushing 3.Valve body 1 is a cylindrical housings, comprises inlet end 11, outlet side 12 and internal cavities.Internal cavities is according to the difference of shape, 12 is divided into the first cone shape hole part, 13, the second cylindrical hole parts 14 that diameter reduces gradually, third hand tap shape bore portion 15 that diameter increases gradually and the 4th cylindrical hole 16 from inlet end 11 to the outlet side.The diameter of the 4th cylindrical hole 16 is greater than the maximum diameter of third hand tap shape bore portion 15.
On the outlet side 12 of valve body, be with a spacing guide pin bushing 3, be used to control the maximum displacement of spool 2.The end that this spacing guide pin bushing 3 stretches into valve body 1 internal cavities forms a plurality of air inlet breach 31.
Self-locked valve of the present invention can be installed in the cylinder ingress of gas-filled type lighter or other device that need inflate.Valve body 1 frame can comprise small end part 18 that the diameter near inlet end is less and near the bigger big end portion 17 of diameter of outlet side.Form flange 19 between big end portion 17 and the small end part 18.Can form the ultrasonic welding wiring on the flange 19 so that be connected with the cylinder inlet.
By the inlet end 11 of valve when valve is inflated, the pressure of extraneous gas promotes spool 2 and opens to left movement, the air inlet duct 23 of gas on column part 21 enters, and flows into cylinder.The pressure of extraneous gas is pushed into spool 2 against the inner of spacing guide pin bushing 3 at most, and at this moment, extraneous gas can enter cylinder interior by air inlet breach 31 on spacing guide pin bushing.
When in the cylinder during gassy, gas inside pressure will increase gradually, act on the conical cavity 22 of spool 2.During active force that the active force that produces when internal gas pressure produces the column part of spool 2 greater than the external gas pressure, spool 2 moves right gradually and closes, and then extraneous gas can not enter cylinder again.After spool 2 returns closed position, because the third hand tap shape bore portion of valve body 1 and the conical section tapering of spool 2 are less than 45 degree, and valve body and spool are made by plastics, because the relation of frictional force and angle makes valve of the present invention can produce the self-locking effect between valve body 1 and the spool 2, remain on this closed position always, overcome self-lock force until applying very big external force, could open it again.
As mentioned above, self-locked valve of the present invention can utilize the pressure of extraneous gas to open when inflation, by the pressure automatic cut-off of internal gas, utilizes the principle of self-locking to remain on closed condition then when the cylinder gassy always.
Although described the present invention with reference to preferred embodiment, the present invention is not limited to this, and those of ordinary skill in the art can carry out various improvement and distortion to the present invention under the premise without departing from the spirit and scope of the present invention.
Claims (5)
1. self-locked valve, comprise valve body, spool and spacing guide pin bushing, it is characterized in that valve body is a cylindrical housings, have inlet end, outlet side and internal cavities, internal cavities comprises the first cone shape hole part that diameter is reduced to the direction of outlet side gradually by inlet end, the second cylindrical hole part, the third hand tap shape bore portion that diameter is increased to the outlet side direction gradually by inlet end, diameter is greater than the 4th cylindrical hole part of the maximum diameter of third hand tap shape bore portion; Spool comprises column part and conical section, column part partly cooperates with second cylindrical hole, length is partly longer than second cylindrical hole, periphery at column part has at least one vent slot longitudinally, conical section cooperates with third hand tap shape bore portion, tapering equates that with it conical section comprises that towards the conical cavity of valve body outlet side opening, the maximum diameter of conical section is less than the diameter of the 4th column part; Spacing guide pin bushing is enclosed within on the outlet side of valve body, inwardly limits the maximum displacement of spool, stretches at spacing guide pin bushing and forms one or more air inlet breach on the end of valve inner cavity.
2. self-locked valve as claimed in claim 1 is characterized in that described valve body and spool are made by plastics, and the tapering of the conical section of described valve body third hand tap shape bore portion and described spool is less than 45 °.
3. self-locked valve as claimed in claim 1 is characterized in that the tapering of described conical cavity is greater than 30 °.
4. self-locked valve as claimed in claim 1 is characterized in that, described frame comprises the big end portion near the outlet side, and near the small end part and the flange that is positioned between the two of inlet end, the diameter of big end portion is greater than the small end part.
5. self-locked valve as claimed in claim 4 is characterized in that, forms the ultrasonic welding wiring on the described flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610006095 CN101008456A (en) | 2006-01-26 | 2006-01-26 | Self-locked valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610006095 CN101008456A (en) | 2006-01-26 | 2006-01-26 | Self-locked valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101008456A true CN101008456A (en) | 2007-08-01 |
Family
ID=38697023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610006095 Pending CN101008456A (en) | 2006-01-26 | 2006-01-26 | Self-locked valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101008456A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102996850A (en) * | 2012-12-07 | 2013-03-27 | 厦门理工学院 | Porous pressure valve |
| CN104840290A (en) * | 2015-04-26 | 2015-08-19 | 罗涛 | Nursing type urine containing male trousers |
| CN104887377A (en) * | 2015-04-26 | 2015-09-09 | 罗涛 | Nursing type urine containing pants for men |
| CN104887378A (en) * | 2015-04-26 | 2015-09-09 | 邓莉 | Nursing type urine containing underpants for women |
| CN107606180A (en) * | 2017-10-20 | 2018-01-19 | 浙江杭兴锅炉有限公司 | A kind of boiler tubing control valve |
| CN108343765A (en) * | 2018-02-05 | 2018-07-31 | 刘贵文 | A kind of explosive valve and its application and the method for promoting energy conversion efficiency |
-
2006
- 2006-01-26 CN CN 200610006095 patent/CN101008456A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102996850A (en) * | 2012-12-07 | 2013-03-27 | 厦门理工学院 | Porous pressure valve |
| CN104840290A (en) * | 2015-04-26 | 2015-08-19 | 罗涛 | Nursing type urine containing male trousers |
| CN104887377A (en) * | 2015-04-26 | 2015-09-09 | 罗涛 | Nursing type urine containing pants for men |
| CN104887378A (en) * | 2015-04-26 | 2015-09-09 | 邓莉 | Nursing type urine containing underpants for women |
| CN107606180A (en) * | 2017-10-20 | 2018-01-19 | 浙江杭兴锅炉有限公司 | A kind of boiler tubing control valve |
| CN108343765A (en) * | 2018-02-05 | 2018-07-31 | 刘贵文 | A kind of explosive valve and its application and the method for promoting energy conversion efficiency |
| CN108343765B (en) * | 2018-02-05 | 2023-12-22 | 刘贵文 | Explosion type valve, application thereof and method for improving energy conversion efficiency |
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