CN2254137Y - Gas stop valve - Google Patents
Gas stop valve Download PDFInfo
- Publication number
- CN2254137Y CN2254137Y CN 95232938 CN95232938U CN2254137Y CN 2254137 Y CN2254137 Y CN 2254137Y CN 95232938 CN95232938 CN 95232938 CN 95232938 U CN95232938 U CN 95232938U CN 2254137 Y CN2254137 Y CN 2254137Y
- Authority
- CN
- China
- Prior art keywords
- valve
- direct current
- current generator
- chamber
- isolating film
- 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 - Fee Related
Links
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 5
- 230000002441 reversible effect Effects 0.000 claims abstract description 5
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 claims description 2
- 229920001195 polyisoprene Polymers 0.000 claims description 2
- 238000011109 contamination Methods 0.000 abstract description 2
- 229920001971 elastomer Polymers 0.000 abstract description 2
- 239000012535 impurity Substances 0.000 abstract description 2
- 230000035945 sensitivity Effects 0.000 abstract description 2
- 239000003034 coal gas Substances 0.000 abstract 1
- 230000003628 erosive effect Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 15
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 239000011280 coal tar Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Images
Landscapes
- Electrically Driven Valve-Operating Means (AREA)
Abstract
The utility model relates to a gas stop valve, which is mainly used for the on-off control of the gas in a coal gas pipeline. A miniature reversible DC motor drives a rotating screw rod to rotate by a speed reducer. The screw rod and a valve rod nut are engaged and the nut vertically moves. The nut drives an elastic rubber isolating film in an acoustic horn shape to move to open or close the valve. The isolating film isolates all the movable components of gas medium and the stop valve. The contamination and the erosion of the movable components caused by the harmful impurity is avoided. The sensitivity and the reliability of the valve working for a long time is guaranteed.
Description
The utility model relates to a kind of Gas stop valve, and the break-make that can be used for all gases is controlled automatically, especially for the break-make control of gas in the gas pipe line.
Known motor block valve, volume is big, and complex structure has generally included motor and gear, is made up of more or less a hundred parts such as secondary speed-reducing gear-box, travel control system, clutch, torque limit mechanisms.In addition, because the componental movement parts directly contact with gas medium, be subjected to objectionable impurities in the medium (as: sulphur in the inflammable gas and sulphide, coal tar wet goods) contamination, etch, working resistance increases gradually, under constant electrical pulse, just be difficult to guarantee the long-term sensitivity and the reliability of valve switching.
The purpose of this utility model be exactly to provide in order to overcome the deficiencies in the prior art a kind of simple in structure, volume is little, can total movement component in gas medium and the valve are isolated, under low voltage and the effect of little current DC electrical pulse switching freely, sensitive, Gas stop valve reliably.
The purpose of this utility model can reach by following measure:
This valve is made up of valve body, valve seat, valve rod, flashboard, motor, retarder.Main structure is, between the inlet A chamber of valve body (7) and outlet B chamber, be provided with valve seat (8), the hole (9) that is communicated with A, B chamber is arranged on the valve seat, horn shape elastic caoutchouc isolating film (11) is installed in hole (9) and goes up and connect or block A, B chamber, (10) contact with the end face of hole (9) at the bottom of the loudspeaker of isolating film, are provided with T type cavity (18) in the end (10).One end of Stem Mut (6) is T-shape head (19), and this head is installed in the chamber (18), and an end of the other end of Stem Mut and rotary screw (5) links together, and the other end of screw rod links together by retarder (4) and direct current generator (3).The horn mouth of isolating film (12) by the bottom surface press seal of the base plate of support cover (2) (13) with valve body circumferential surface that the A chamber communicates between.In the middle of the base plate porose (14), Stem Mut upper and lower motion in hole (14).Direct current generator is installed in the support cover.
The purpose of this utility model can also reach by following measure:
Direct current generator connects rotary screw after slowing down by the one-level of gear or worm and gear.
Direct current generator is connected with rotary screw by harmonic speed reducer.
Direct current generator is the miniature reversible direct current generator.
Description of drawings:
Fig. 1 is a general illustration of the present utility model, (1) spiral cover wherein, (2) support cover, (3) direct current generator, and (4) retarder (comprise gear: worm gear, worm screw: harmonic speed reducer), (5) rotary screw, (6) Stem Mut, (7) valve body, (8) valve seat, (9) hole, (10) end of isolating film, (11) horn shape isolating film, the mouth of (12) isolating film, (13) base plate, (14) hole.
Fig. 2 is the schematic representation of concrete ways of deceleration among Fig. 1, (15) small gear wherein, (16) support plate, (17) gearwheel.
Fig. 3 is horn shape isolating film schematic representation among Fig. 1, wherein (18) T die cavity.
Fig. 4 is a Stem Mut schematic representation among Fig. 1, wherein (19) T-shape head.
Below the utility model is further described:
This Gas stop valve mainly is used in the automatic control of the gas in the gas pipe line, it and the supporting use of IC-card gas meter.The valve body part of this valve is the same substantially with common valve body, all comprises suction port and air outlet, and the main distinction is that the gate of opening and closing vent is to be realized by a rubber school isolating film with elastomeric circular horn type shape.The end of isolating film (be loudspeaker at the bottom of), covered on the hole of the valve seat between suction port and the air outlet, the limit of isolating film (being horn mouth) is sealed on suction port and the circumferential surface that the valve body circumference communicates, there is the T die cavity the inside at the end of isolating film, the T-shape head that has the Stem Mut of T-shape head just in time is installed in the T die cavity of isolating film, Stem Mut and rotary screw mesh together, the Placement of rotary screw and miniature reversible direct current generator can have three kinds: a kind of is that rotary screw and gearwheel are fixed together, gearwheel again with motor output shaft on pinion; Second kind is that rotary screw and worm gear are fixed together, worm gear again with motor output shaft on worm meshing; The third is that rotary screw is connected with motor by harmonic speed reducer.Opening and close by the miniature reversible direct current generator of isolating film realizes, when applying a positive pulse to motor, rotary screw turns clockwise, its output torque is converted to axial tension, by screw thread with the Stem Mut spin-up, the end of isolating film, be pulled away from valve seat, and at this moment open in the hole of valve seat, and gas passes through.Otherwise, applying negative impulse when motor, rotary screw rotates counterclockwise and drives Stem Mut and moves downward, and this moment, isolating film was lived the hole capping of valve seat, and gas is obstructed.Isolating film oil resistant, corrosion-resistant has very strong toughness and elasticity, and the end of isolating film and the T-shape head of Stem Mut are fixed together, and play skeleton function, have increased the rigidity at the end of isolating film.In when ventilation, the end of isolating film, move upward, at this moment the umbrella shape of isolating film towards on be shrunk to horizontal S shape.
Claims (4)
1, a kind of Gas stop valve, by valve body, valve seat, valve rod, flashboard, motor, retarder is formed, it is characterized in that: between the inlet A chamber of valve body (7) and outlet B chamber, be provided with valve seat (8), connection A is arranged on the valve seat, the hole in B chamber (9), horn shape elastic caoutchouc isolating film (11) is installed in hole (9) and goes up and connect or blocking-up A, the B chamber, (10) contact with the end face of hole (9) at the bottom of the loudspeaker of isolating film, be provided with T type cavity (18) at the end (10), one end of Stem Mut (6) is T-shape head (19), this head is installed in the chamber (18), one end of the other end of Stem Mut and rotary screw (5) links together, the other end of screw rod links together by retarder (4) and direct current generator (3), the horn mouth of isolating film (12) by the bottom surface press seal of the base plate of support cover (2) (13) with valve body circumferential surface that the A chamber communicates between, in the middle of the base plate porose (14), Stem Mut in hole (14) on, following motion, direct current generator is installed in the support cover.
2, according to the said Gas stop valve of claim 1, it is characterized in that: direct current generator connects rotary screw after slowing down by the one-level of gear or worm and gear.
3, according to the said Gas stop valve of claim 1, it is characterized in that: direct current generator is connected with rotary screw by harmonic speed reducer.
4, according to the said Gas stop valve of claim 1, it is characterized in that: direct current generator is the miniature reversible direct current generator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95232938 CN2254137Y (en) | 1995-12-07 | 1995-12-07 | Gas stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95232938 CN2254137Y (en) | 1995-12-07 | 1995-12-07 | Gas stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2254137Y true CN2254137Y (en) | 1997-05-14 |
Family
ID=33877184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95232938 Expired - Fee Related CN2254137Y (en) | 1995-12-07 | 1995-12-07 | Gas stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2254137Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101097000B (en) * | 2006-06-29 | 2010-09-08 | 喜开理株式会社 | Flow control valve |
| CN102444172A (en) * | 2011-09-15 | 2012-05-09 | 南京理工大学 | Pressure-superposed variable frequency pressurization water supply tank and pipe network flow proportioning flexible intelligent control device |
| CN102635582A (en) * | 2012-03-27 | 2012-08-15 | 西安交通大学 | High-pressure high-flow alternating-current servo direct-driven threaded flow valve |
| CN105822814A (en) * | 2016-05-28 | 2016-08-03 | 慈溪凯业电器有限公司 | Low-voltage actuator used for pushing up-down-stroke valve |
| CN108488408A (en) * | 2018-05-23 | 2018-09-04 | 平湖乾丰机械有限公司 | A kind of heavy caliber reheat control valve body equipment |
-
1995
- 1995-12-07 CN CN 95232938 patent/CN2254137Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101097000B (en) * | 2006-06-29 | 2010-09-08 | 喜开理株式会社 | Flow control valve |
| CN102444172A (en) * | 2011-09-15 | 2012-05-09 | 南京理工大学 | Pressure-superposed variable frequency pressurization water supply tank and pipe network flow proportioning flexible intelligent control device |
| CN102635582A (en) * | 2012-03-27 | 2012-08-15 | 西安交通大学 | High-pressure high-flow alternating-current servo direct-driven threaded flow valve |
| CN102635582B (en) * | 2012-03-27 | 2014-12-10 | 西安交通大学 | High-pressure high-flow alternating-current servo direct-driven threaded flow valve |
| CN105822814A (en) * | 2016-05-28 | 2016-08-03 | 慈溪凯业电器有限公司 | Low-voltage actuator used for pushing up-down-stroke valve |
| CN105822814B (en) * | 2016-05-28 | 2019-02-05 | 慈溪凯业电器有限公司 | A low voltage actuator for pushing up and down stroke valves |
| CN108488408A (en) * | 2018-05-23 | 2018-09-04 | 平湖乾丰机械有限公司 | A kind of heavy caliber reheat control valve body equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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 |