CN2048910U - Reversing valve - Google Patents
Reversing valve Download PDFInfo
- Publication number
- CN2048910U CN2048910U CN 89210307 CN89210307U CN2048910U CN 2048910 U CN2048910 U CN 2048910U CN 89210307 CN89210307 CN 89210307 CN 89210307 U CN89210307 U CN 89210307U CN 2048910 U CN2048910 U CN 2048910U
- Authority
- CN
- China
- Prior art keywords
- valve
- selector
- push rod
- cone
- housed
- 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.)
- Withdrawn
Links
- 150000001875 compounds Chemical class 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 abstract description 7
- 239000012530 fluid Substances 0.000 abstract description 4
- 238000009434 installation Methods 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 210000000664 rectum Anatomy 0.000 description 1
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- Multiple-Way Valves (AREA)
Abstract
The utility model relates to a reversing valve, belonging to the improvement of a three-position reversing valve; the utility model comprises a duplex cone valve plug-in unit, a stroke push rod, a valve body, a shuttle valve and an end cover. The utility model has the advantages of high efficiency, no leakage, convenient installation and maintenance, high voltage proofing, big air flow, safe action, and good interchange ability; the reversing valve is suitable for the reversing circuit of a pneumatic control system as well as a fluid transmission system.
Description
The utility model relates to a kind of selector valve, belongs to the improvement of three position directional valve, is particularly suitable for adorning usefulness on the atmospheric control commutation loop, also can be used for transmission fluid.
For a long time, selector valve generally adopts guiding valve clearance seal structure in transmission fluid, therefore exists the internal leakage phenomenon.Hydrovalve is because its working medium is a liquid, certain viscosity is arranged, so internal leakage is less, the power of loss is little, the working medium of air valve is a gas, leakage quantity is bigger in it, especially to the bigger selector valve of latus rectum more very, along with the raising internal leakage of working pressure sharply increases, this has just limited the using scope of pneumatic actuator system pressure, and the working pressure of therefore general air valve is less than 1MPa, the specified working pressure of individual valves also is no more than 2.5MPa, this does not just satisfy the usage requirement of high-pressure pneumatic control system far away, so up to the present the scientific and technical personnel that go together in the approach of actively seeking to solve, but all do not obtain the result that is satisfied with.
The purpose of this utility model is to provide a kind of working pressure to be no more than 32MPa, and commutation power is little, the transmission efficiency height, and safe and reliable, interchangeability is strong, and installation and maintenance are convenient, no internal leakage, and be suitable for selector valve in gas or other transmission fluids.
The purpose of this utility model realizes by the following technical solutions, it mainly is made up of compound cone valve plug-in unit, stroke push rod 4, valve body 9, end cap 7, the return spring 6 of described compound cone valve plug-in unit, respectively in the two ends of valve body 9 are packed it into, the end cap 7 that stroke push rod 4 and Sealing 10 are housed is loaded on two ends in turn for poppet valve core 2 and cone valve cover 1 that confidential paper 10 is housed.
Have the passage that connects valve port in the described valve body 9, and the shuttle valve 8 that control valve is reliably closed is housed at corresponding position.
The center of the poppet valve core 2 of described compound cone valve plug-in unit has the hole of passing through for guide's spool 3, one end of its guide's spool 3 puts in the spring seat 5, the other end corresponding with an end of stroke push rod 4 and leave 0.5～3mm the gap and with its on same axis.
Radially have through hole with the valve port corresponding site on the sidewall of described cone valve cover 1.
The annular boss of described end cap 7 partly put in valve pocket and withstand cone valve cover 1 end face its radially have the hole that communicates with interface.
The interface of described selector valve is board-like or the tubular type interface.
The utility model compared with prior art has commutation power little, and the transmission efficiency height is high pressure resistant, no internal leakage, and advantage such as Throughput is big, and no misoperation is safe and reliable, and installation and maintenance are convenient, and interchangeability is good, and application area is wide all is suitable in gas, liquid transmission system.
Fig. 1, be main sectional structure schematic representation of the present utility model.
Fig. 2 is the suitable function graphic symbol schematic representation of this valve
Embodiment of the present utility model is described in conjunction with the accompanying drawings, valve body 9 through the casting machine add-on type, in have the passage that connects valve port, the return spring 6 of compound cone valve plug-in unit, spring seat 5, guide's spool 3, poppet valve core 2 overlaps 1 in turn respectively in the two ends of valve body 9 are packed it into the cone valve that Sealing 10 is housed, has annular boss, the end cap 7 that radially has the through hole that communicates with interface is loaded on two ends, between itself and the valve pocket Sealing 10 is housed, front end contacts with the end face of cone valve cover 1, one end of stroke push rod 4 is corresponding with guide's spool 3, and the other end is equipped with Sealing 10 and passes end cap 7; The corresponding site of valve body 9 is equipped with the shuttle valve 8 that control valve is reliably closed, and its interface can be made board-like or the tubular type interface as required.
When using, realizes the utility model by following program, compound cone valve is under the effect of pilot pressure when pressed gas enters the P chamber, full spool is closed, closed state in the middle of forming, when left side stroke push rod 4 is tried hard to recommend the moving guide's spool 3 that successively backs down down outside, poppet valve core 2, P, A chamber are communicated, when the external force on acting on left row journey push rod 4 is eliminated, compound cone valve, cuts out rapidly under the pilot pressure acting in conjunction after return spring 6 and process shuttle valve 8 are selected at pilot pressure, cut off P, A chamber passage, closing position state in the middle of recovering; When right side push rod 4 is tried hard to recommend down moving outside, successively back down guide's spool 3, poppet valve core 2 communicates P, B chamber, when the external force on acting on right side stroke guide rod 4 is eliminated, the compound cone valve of homonymy is at pilot pressure, under back position spring 6 and the acting in conjunction, close rapidly, cut off the passage in P, B chamber through the pilot pressure after shuttle valve 8 selections, return to middle closing position, realized the function of no internal leakage 3-position-3-way selector valve.
Claims (6)
1, a kind of selector valve is by compound cone valve plug-in unit, stroke push rod 4, valve body 9 and end cap 7 are formed, the return spring 6 that it is characterized in that compound cone valve plug-in unit, respectively in the two ends of valve body 9 are packed it into, the end cap 7 that stroke push rod 4 and Sealing 10 are housed is loaded on two ends in turn for poppet valve core 2 and cone valve cover 1 that Sealing 10 is housed.
2, selector valve according to claim 1 is characterized in that having in the described valve body 9 passage that connects valve port, and at corresponding position the shuttle valve 8 that control valve is reliably closed is housed.
3, selector valve according to claim 1, the center that it is characterized in that the poppet valve core 2 of described compound cone valve plug-in unit has through hole, one end of its guide's spool 3 puts in the spring seat 5, and the other end is corresponding with an end of stroke push rod 4, and with its on same axis.
4, selector valve according to claim 1 is characterized in that radially having through hole with the valve port corresponding site on the sidewall of described cone valve cover 1.
5, selector valve according to claim 1, the annular boss that it is characterized in that described end cap 7 partly put in valve pocket and withstand the end face of cone valve cover 1, and it radially has the hole that communicates with interface.
6, selector valve according to claim 1, the interface that it is characterized in that selector valve be board-like also can be the tubular type interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89210307 CN2048910U (en) | 1989-04-06 | 1989-04-06 | Reversing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89210307 CN2048910U (en) | 1989-04-06 | 1989-04-06 | Reversing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2048910U true CN2048910U (en) | 1989-12-06 |
Family
ID=4866689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89210307 Withdrawn CN2048910U (en) | 1989-04-06 | 1989-04-06 | Reversing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2048910U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104500478A (en) * | 2014-12-19 | 2015-04-08 | 林东亮 | Pneumatic automatic reversing valve, pneumatic reverser and method for applying same |
| CN109268253A (en) * | 2018-12-01 | 2019-01-25 | 李军 | A kind of reciprocating pump of variable boost ratio |
-
1989
- 1989-04-06 CN CN 89210307 patent/CN2048910U/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104500478A (en) * | 2014-12-19 | 2015-04-08 | 林东亮 | Pneumatic automatic reversing valve, pneumatic reverser and method for applying same |
| CN104500478B (en) * | 2014-12-19 | 2016-06-08 | 林东亮 | Pneumatic automatic diverter valve, pneumatic diverter and using method thereof |
| CN109268253A (en) * | 2018-12-01 | 2019-01-25 | 李军 | A kind of reciprocating pump of variable boost ratio |
| CN109268253B (en) * | 2018-12-01 | 2020-05-12 | 海安县石油科研仪器有限公司 | Reciprocating pump with variable pressure increasing ratio |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CP01 | Change in the name or title of a patent holder |
Patentee after: Shengyang Hydraulic Elements Factory Patentee before: Xu Xuexin |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: PATENTEE; FROM: XU XUEXIN TO: SHENYANG HYDRAULIC PLANT |
|
| 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 |