CN1039095A - A kind of by pressure controlled self-locked valve - Google Patents
A kind of by pressure controlled self-locked valve Download PDFInfo
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- CN1039095A CN1039095A CN 88104026 CN88104026A CN1039095A CN 1039095 A CN1039095 A CN 1039095A CN 88104026 CN88104026 CN 88104026 CN 88104026 A CN88104026 A CN 88104026A CN 1039095 A CN1039095 A CN 1039095A
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- stopper rod
- spool
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- pressure controlled
- valve
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- 238000011089 mechanical engineering Methods 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- 230000033001 locomotion Effects 0.000 description 8
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- 239000000428 dust Substances 0.000 description 3
- 239000000835 fiber Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Preventing Unauthorised Actuation Of Valves (AREA)
Abstract
The present invention relates to a kind of by pressure controlled self-locked valve, belong in the mechanical engineering commonly used for prevent accidental or unauthorized action by pressure controlled self-locked valve.Can prevent the opening and close of not operation personnel permission of industry pipelines such as oil, chemical industry, liquefaction, railway, gas pipeline, steam line.Make simple, with low cost.Use very extensive, social benefit, remarkable in economical benefits.
Description
The present invention relates to a kind of by pressure controlled self-locked valve, in specifically a kind of mechanical engineering commonly used for prevent accidental or unauthorized action by pressure controlled self-locked valve.
At present, be widely used in valve in the pipeline in order to prevent misoperation, what have is provided with electric controller, generally pinning of the usefulness that has, and effect is all undesirable, trouble not only, and can not prevent misoperation effectively.For example: the present angle cock that uses on the rail vehicles, do not have can locking device, as long as the not operation personnel pull with hand, still can close angle cock, if the driver can't find, train will brake failure, often causes a serious accident.The pipeline that industries such as oil, chemical industry, liquefaction, power station steam are used does not all effectively prevent the valve of misoperation.
The objective of the invention is to provide a kind of can effectively prevent misoperation by pressure controlled self-locked valve.
The objective of the invention is to be achieved through the following technical solutions:
A kind of by pressure controlled self-locked valve, form by valve body 8, spool 7.(or being connected with) arranged by pressure controlled self-locking device on valve body 8 or the spool 7, when this self-locking device reaches some (or certain is several) force value or some (or certain is several) pressure range when pressure medium in the valve body 8, the stopper rod 4 ability setting in motions of self-locking device, when moving to assigned position, spool 7 could rotate or move, pipeline promptly becomes closed condition (or opening state) by opening state (or closed condition), also can change the size of opening or closing aperture.
Self-locking device by pressure controlled self-locked valve, can form by stopper rod 4, the elastic force part 3 of bar 2 with lock, the spool 7 that has the lock road 10 that matches with the locking bar 2 of stopper rod 4 and overcoat 9, locking bar 2 can be cylinder, prism, square column, it also can be tubing string, locking bar 2 can be made one with stopper rod 4, also can be assembly parts.Lock road 10 can move up and down or move up and down and left-right rotation for locking bar 2.
Also can be by the self-locking device of pressure controlled self-locked valve by stopper rod 4, elastic force part 3, lock dog 12, spring 13, overcoat 9(or valve body 8) on lock road 10 form, when stopper rod 4 when its axial-movement is crossed lock dog 12, in the lock dog 12 income spools 7, spool 7 is just rotatable or mobile.
By the self-locking device of pressure controlled self-locked valve, also can form by the lock road 10 on stopper rod 4, locking bar 2, elastic force part 3, lock dog 12, spring 13, the spool 7.Locking bar 2 and stopper rod 4 can be made one, also can be assembly parties, when stopper rod 4 when its axial-movement is crossed lock dog 12, lock dog 12 income overcoat 9(or valve bodies 8) in the wall, spool 7 is just rotatable or mobile.
Also can be by the self-locking device of pressure controlled self-locked valve by 10 inner via holes 15 of the lock road on the spool 7, overcoat 9(or valve body 8) on stopper rod 4, stopper rod chamber 16, elastic force part 3 form, when stopper rod 4 at its axial-movement of positive pressure lower edge to overcoat 9(or valve body 8) in the wall time, spool 7 is just rotatable or move.
By the self-locking device of pressure controlled self-locked valve, also can be by the stopper rod chamber 16 on the spool 7, stopper rod 4, elastic force part 3, inner via hole 15, overcoat 9(or valve body 8) on lock road 10 form.When stopper rod 4 was taken in spool 7 bodies under suction function, spool 7 was just rotatable or mobile.
Above-mentioned self-locking device by pressure controlled self-locked valve, the end ring week that its stopper rod 4 and pipeline pressure medium communicate is with the sectional area of spool 7 path touching positions, less than the maximum secting area of stopper rod 4.Because the pressure of its initial pressure after less than stopper rod 4 setting in motions, so as long as stopper rod 4 is motion slightly at the beginning, stopper rod 4 will be subjected to bigger pressure effect, accelerates the movement velocity of stopper rod 4.
The drawing of accompanying drawing is described as follows:
Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7 all are the schematic representation by pressure controlled self-locking angle cock.
The present invention is described in further detail below in conjunction with (accompanying drawing) embodiment:
Valve is of a great variety, and is of the present invention by pressure controlled self-locked valve scheme, can implement in most of kinds of valve, and the angle cock that only generally uses with railway vehicle is example below, and the present invention is done progressive a detailed description in detail.
Fig. 1, be one in pipeline, use under the positive pressure by pressure controlled self-locking angle cock schematic representation.Angle cock mainly contains valve body 8 and spool 7 is formed, and the large through-hole of the both sides of valve body 8 is for connecting pipeline usefulness, and spool 7 partly has a hemisphere at large through-hole, and pipeline shown in the figure is an opening state.The elastic force part 3(that is connected in the overcoat 9 on the valve body 8 is a spring herein), under the elastic force effect, the stopper rod 4 of jack-up bar 2 with lock upwards, there is the trough that matches with locking bar 2 lower end of spool 7, stopper rod 4 has upwards entered the trough under the spool 7, the lock road 10 on overcoat 9 tops is two cuboid shape chambeies, and locking bar 2 can only move up and down in lock road 10.So when pulling handgrip 1 rotation with hand, spool 7 drives passes to locking bar 2 with power, locking bar 2 passes to power on lock 10 sides, road, and rotation must not.The diagram opening state is self-locking state below, can't rotate.Air pressure increases in pipeline, has outer vent 11 on the overcoat 9, and the vent inboard is provided with dust guard 6, and dust guard can be fiber, foam etc., and spool 7 all is provided with Sealing 5 up and down.When stopper rod 4 upward pressures surpassed the elastic force of elastic force part 3, stopper rod 4 began to move downward, and locking bar 2 also moves downward with stopper rod 4, when locking bar 2 moves out from the lower groove of spool 7, and twisting handgrip 1, spool 7 is just rotatable, changes 90 ° to closed condition.After air pressure in the pipeline descends, be generally the normal barometric pressure in the pipeline, start 1 to open position to back twist, locking bar 2 is self-locking state entering in the trough of spool 7 bottoms under the elastic force effect, turns round handgrip 1 in any case, spool 7 all can't rotate, and plays self-locking action.
Fig. 2, be one in pipeline, use under the positive pressure by pressure controlled self-locking angle cock.Under no pressure in the pipeline or normal pressure situation, state as shown, i.e. self-locking state, spool 7 can't rotate.When pipeline inner pressure during greater than elastic force part 3 elastic force, stopper rod 4 begins to move downward, and when lock dog 12 was crossed in stopper rod 4 lower ends, lock dog 12 was in pin turns to income spool 7 outer surfaces.At this moment, spool 7 could rotate.When pipeline inner pressure during less than elastic force part 3 elastic force, spool 7 can go back to the origin-location, lock dog 12 recovers shown position under spring 13 effects, enter overcoat 9(or valve body 8) lock road 10 in, lock road 10 is cuboid shape chambeies, only can move up and down for lock dog 12, and lock dog 12 pins spool 7, cause it to rotate, be self-locking state.
Fig. 3, be one in pipeline, use under the positive pressure by pressure controlled self-locking angle cock.Motion principle is identical with Fig. 2.The lock road 10 that only moves up and down for locking bar 2 is arranged on the spool 7, is illustrated as self-locking state, overcoat 9(or valve body 8) go up lock dog 12, under spring 13 effects, embed in the lock road 10 of spool 7, spool 7 can't rotate.When locking bar 2 was crossed lock dog 12, lock dog 12 was forced out spool 7 outer surfaces, and spool 7 can rotate.
Fig. 4, be one in pipeline, use under the positive pressure by pressure controlled self-locking angle cock.Its self-locking device by spool 7 lock 10, inner via hole 15, overcoat 9(or valve body 8) on stopper rod 4, stopper rod chamber 16, elastic force part 3 form.Inner via hole 15 1 ends lead to stopper rod 4, the other end siphunculus road.When pipeline inner pressure during greater than the elastic force of elastic force part 3, stopper rod 4 beginnings are to outer vent 11 1 lateral movements, and when spool 7 outer surfaces were withdrawed from stopper rod 4 terminations, spool 7 can rotate.Lock road 10 is chambeies of matching with stopper rod 4 termination profiles, also can be a square body cavity or rectangular body cavity (length direction and spool 7 parallel axes are for best).All the other are the same.
Fig. 5, be one in pipeline, use under the negative pressure effect by pressure controlled self-locking angle cock.Its self-locking device is by the stopper rod chamber 16 on the spool 7, stopper rod 4, elastic force part 3, inner via hole 15, overcoat 9(or valve body 8) on lock road 10 form.The same Fig. 4 of principle, when negative pressure in the pipeline during greater than the elastic force of elastic force part 3, stopper rod 4 begins to reclaim, and in the time of in income spool 7 outer surfaces, spool 7 can rotate.
Fig. 6, be one under the pipeline positive pressure, use by pressure controlled self-locking angle cock.Be illustrated as self-locking state, when pipeline inner pressure reaches when making stopper rod 4 motion, this moment, stopper rod 4 pressure area of bearing was the sectional area of stopper rod 4 ends and the contacted section of spool 7 endoporus, stopper rod 4 moves slightly at the beginning, the area of stopper rod 4 pressure that bears is the area of stopper rod 4 diameters, and stopper rod 4 diameter areas are greater than the initial bearing area in end.So stopper rod 4 Once you begin moves, and will quicken immediately.This accelerated motion principle can be used for each technological scheme.
Fig. 7, be one under the pipeline positive pressure, use by pressure controlled self-locking angle cock.The same Fig. 5 of principle just on the basis of Fig. 5, becomes malleation by negative pressure.Interior vent 15 and lock 10 bottoms, road communicate.
Self-locking device (except Fig. 5) all can be according to above-mentioned principle, become extension spring by changing elastic force part 3(such as stage clip), methods such as lock road 10, mounting point and direction, realize negative pressure control self-locking, control is rotated, is moved up and down.Any controllable position on the valve can be selected in the mounting point.
Claims (7)
1, a kind of by pressure controlled self-locked valve, form by valve body 8, spool 7, it is characterized in that (or being connected with) being arranged by pressure controlled self-locking device on valve body 8 or the spool 7, when this self-locking device reaches some (or certain is several) force value or some (or certain is several) pressure range when pressure medium in the valve body 8, spool 7 could rotate or move, pipeline promptly becomes closed condition (or opening state) by opening state (or closed condition), also can change the size of opening or closing aperture.
2, according to claim 1 a kind of by pressure controlled self-locked valve, it is characterized in that self-locking device is made up of stopper rod 4, the elastic force part 3 of bar 2 with lock, the spool 7 that has the lock road 10 that matches with the locking bar 2 of stopper rod 4 and overcoat 9, locking bar 2 can be cylinder, prism, square column, it also can be tubing string, locking bar 2 can be made one with stopper rod 4, also can be assembly parts.Lock road 10 can move up and down or move up and down and left-right rotation for locking bar 2.
3, according to claim 1 a kind of by pressure controlled self-locked valve, it is characterized in that self-locking device is by stopper rod 4, elastic force part 3, lock dog 12, spring 13, overcoat 9(or valve body 8) on lock road 10 form, when stopper rod 4 when its axial-movement is crossed lock dog 12, in the lock dog 12 income spools 7, spool 7 is just rotatable or mobile.
4, according to claim 1 a kind of by pressure controlled self-locked valve, it is characterized in that self-locking device is formed locking bar 2 by the lock road 10 on stopper rod 4, locking bar 2, elastic force part 3, lock dog 12, spring 13, the spool 7 and stopper rod 4 can be made one, it also can be an assembly parts, when stopper rod 4 when its axial-movement is crossed lock dog 12, lock dog 12 income overcoat 9(or valve bodies 8) in the wall, spool 7 is just rotatable or mobile.
5, according to claim 1 a kind of, it is characterized in that self-locking device is by the lock road 10 on the spool 7, inner via hole 15, overcoat 9(or valve body 8 by pressure controlled self-locked valve) on stopper rod 4, stopper rod chamber 16, elastic force part 3 form.When stopper rod 4 at its axial-movement of positive pressure lower edge to overcoat 9(or valve body 8) in the wall time, spool 7 is just rotatable or move.
6, according to claim 1 a kind of, it is characterized in that self-locking device is by the stopper rod chamber 16 on the spool 7, stopper rod 4, elastic force part 3, inner via hole 15, overcoat 9(or valve body 8 by pressure controlled self-locked valve) on lock road 10 form.When stopper rod 4 was taken in spool 7 bodies under suction function, spool 7 was just rotatable or mobile.
7, according to claim 1,2,3,4,5,6 described a kind of by pressure controlled self-locked valve, it is characterized in that the stopper rod 4 of self-locking device and the end ring week that the pipeline pressure medium communicates, with the sectional area of spool 7 path touching positions, less than the maximum secting area of stopper rod 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88104026 CN1039095A (en) | 1988-07-08 | 1988-07-08 | A kind of by pressure controlled self-locked valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88104026 CN1039095A (en) | 1988-07-08 | 1988-07-08 | A kind of by pressure controlled self-locked valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1039095A true CN1039095A (en) | 1990-01-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88104026 Pending CN1039095A (en) | 1988-07-08 | 1988-07-08 | A kind of by pressure controlled self-locked valve |
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| Country | Link |
|---|---|
| CN (1) | CN1039095A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102654212A (en) * | 2005-06-10 | 2012-09-05 | 朗姆研究公司 | Optimized activation prevention assembly for a gas delivery system and methods therefor |
| CN113915528A (en) * | 2021-10-28 | 2022-01-11 | 广州文冲船厂有限责任公司 | Pressure distribution system |
-
1988
- 1988-07-08 CN CN 88104026 patent/CN1039095A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102654212A (en) * | 2005-06-10 | 2012-09-05 | 朗姆研究公司 | Optimized activation prevention assembly for a gas delivery system and methods therefor |
| CN101194123B (en) * | 2005-06-10 | 2014-07-16 | 朗姆研究公司 | Optimized anti-activation components for gas delivery systems and methods thereof |
| CN113915528A (en) * | 2021-10-28 | 2022-01-11 | 广州文冲船厂有限责任公司 | Pressure distribution system |
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| WD01 | Invention patent application deemed withdrawn after publication |