CN111043358A - Three-position three-way valve - Google Patents
Three-position three-way valve Download PDFInfo
- Publication number
- CN111043358A CN111043358A CN201911401422.9A CN201911401422A CN111043358A CN 111043358 A CN111043358 A CN 111043358A CN 201911401422 A CN201911401422 A CN 201911401422A CN 111043358 A CN111043358 A CN 111043358A
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- CN
- China
- Prior art keywords
- valve
- valves
- gas
- valve block
- electric
- 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.)
- Pending
Links
- 229920001971 elastomer Polymers 0.000 claims abstract description 10
- 238000009434 installation Methods 0.000 claims abstract description 5
- 229910001008 7075 aluminium alloy Inorganic materials 0.000 claims description 4
- 229920000459 Nitrile rubber Polymers 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 4
- 238000009423 ventilation Methods 0.000 claims description 2
- 238000007789 sealing Methods 0.000 abstract description 12
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/10—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
- F16K11/20—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by separate actuating members
- F16K11/22—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by separate actuating members with an actuating member for each valve, e.g. interconnected to form multiple-way valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Multiple-Way Valves (AREA)
Abstract
The invention discloses a three-position three-way valve which comprises a valve block, two gas-electric valves at the top of the valve block, an electric control interface on the side wall of the valve block for providing power for the gas-electric valves, two working gas interfaces positioned below the electric control interface, and a gas inlet on the valve block and positioned at the opposite side of the working gas interfaces, wherein a rubber ring is arranged between the gas-electric valves and the valve block; the air inlet is provided with an air inlet opening, and the air inlet opening is provided with a plurality of air control stop valves; each pneumatic-electric valve respectively controls a vent valve and an overflow valve; each working gas interface is communicated with the gas inlet through a vent valve; each working gas interface is communicated with an overflow valve. According to the invention, the pneumatic control stop valve is arranged in parallel and tightly, and the installation directions of the air overflow valve and the vent valve are opposite, so that the integral layout is compact, the size is small, and the sealing performance is good.
Description
Technical Field
The invention belongs to the field of control valves for vehicles, and particularly relates to a three-position three-way valve.
Background
Special vehicles often run on roads with complex road conditions, and the working environment is severe. Therefore, the special vehicle has higher requirements on the control valve in the pneumatic system, and particularly, each assembly space of the special vehicle is limited, and each part is required to be small in size and compact in structure. In addition, at present, a common pneumatic direction control valve mostly adopts a slide valve form, and the structure form is suitable for a gas working medium with lower pressure, but the slide valve still has a certain internal leakage phenomenon due to insufficient pressure bearing capacity of a sealing element and the temperature application range of the sealing element within minus 20 ℃ to 80 ℃, so that the strict requirement of a special vehicle on the control valve cannot be met.
Disclosure of Invention
The invention provides a three-position three-way valve which is compact in layout, small in size and good in sealing performance.
The technical scheme of the invention is as follows:
a three-position three-way valve comprises a valve block, two gas-electric valves arranged at the top of the valve block, an electric control interface arranged on the side wall of the valve block and used for providing power for the gas-electric valves, two working gas interfaces positioned below the electric control interface, and gas inlets positioned on the opposite sides of the working gas interfaces on the valve block; wherein a rubber ring is arranged between the pneumatic and electric valve and the valve block; the three-position three-way valve also comprises four pneumatic control stop valves which are arranged in parallel and tightly below the air inlet, wherein the two pneumatic control stop valves positioned at the two sides of the valve block are overflow valves, the two stop valves positioned in the middle of the valve block are vent valves, and the installation directions of the overflow valves and the vent valves are opposite; each pneumatic-electric valve respectively controls one ventilation valve and one air overflow valve; each working gas port is communicated with the gas inlet through a vent valve; each working gas interface is communicated with an overflow valve.
Preferably, the top of the valve block is provided with two step holes, and the two pneumatic and electric valves are tightly installed in the step holes.
Preferably, the rubber ring is a mixed nitrile rubber ring.
Preferably, the valve block is 7075 aluminum alloy material.
The invention has the following beneficial effects:
according to the three-position three-way valve, the pneumatic control stop valves are arranged in parallel and tightly, the two pneumatic control stop valves on the two sides of the valve block are overflow valves, the two stop valves positioned in the middle of the valve block are vent valves, and the installation directions of the overflow valves and the vent valves are opposite, so that the three-position three-way valve is compact in overall layout and small in size. In addition, the vent valve and the air overflow valve both adopt a stop structure, so that the pressure application range of the air path is expanded, and the air overflow valve has good sealing property.
Drawings
Fig. 1 is a front view of a three-position, three-way valve of the present invention.
Fig. 2 is a top view of the three-position, three-way valve of the present invention.
Fig. 3 is a sectional view a-a of fig. 1.
Fig. 4 is a sectional view B-B of fig. 3.
Fig. 5 is a cross-sectional view C-C of fig. 1.
Fig. 6 is a cross-sectional view D-D of fig. 2.
Fig. 7 is a schematic diagram of the operation of the three-position, three-way valve of the present invention.
Wherein: 1. a first electropneumatic valve; 2. a second electropneumatic valve; 3. a valve block; 31. a first stepped bore; 32. a second stepped bore; 4. a first working gas interface; 5. a second working gas interface; 6. an electrical control interface; 7. an air inlet; 13. a first air overflow valve, 14, a first vent valve; 15. a second vent valve; 16. a second air relief valve; 17. 18, a rubber ring; 20. 21 an exhaust port;
Detailed Description
The present invention will be described in detail with reference to examples.
The three-position three-way valve structure of the invention is shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5 and fig. 6, and comprises a valve block 3, a first electropneumatic valve 1 and a second electropneumatic valve 2 which are arranged on the top of the valve block 3, an electrical control interface 6 which is arranged on the side wall of the valve block 3 and is used for providing power for the first electropneumatic valve 1 and the second electropneumatic valve 2, a first working gas interface 4 and a second working gas interface 5 which are positioned below the electrical control interface 6, and a gas inlet 7 which is positioned on the valve block 3 and is positioned on the opposite side of the first working gas interface 4 and the second working gas interface 5; and a rubber ring 17 is arranged between the first pneumatic-electric valve 1 and the valve block 3 for sealing, and a rubber ring 18 is arranged between the second pneumatic-electric valve 2 and the valve block 3 for sealing. The three-position three-way valve further comprises four pneumatic control stop valves which are arranged in parallel and tightly below the air inlet 7, wherein two pneumatic control stop valves positioned at two sides of the valve block 3 are overflow valves, namely a first overflow valve 13 and a second overflow valve 16, and two stop valves positioned in the middle of the valve block 3 are vent valves, namely a first vent valve 14 and a second vent valve 15; the first and second air relief valves 13 and 16 are installed in the same direction, the first and second vent valves 14 and 15 are installed in the same direction, and the two air relief valves and the two vent valves are installed in opposite directions. The first electrogas valve 1 controls a first vent valve 14 and a first overflow valve 13; the second electropneumatic valve 2 controls a second vent valve 15 and a second spill valve 16. The first working gas port 4 is communicated with the gas inlet 7 through a first vent valve 14; the second working gas connection 5 is connected to the gas inlet 7 via a second venting valve 15. The first working gas port 4 is communicated with the second overflow valve 16, and the second working gas port 5 is communicated with the first overflow valve 13.
The working principle of the three-position three-way valve of the present invention is shown in fig. 7: and an air inlet 7 of the three-position three-way valve is communicated with the first pneumatic-electric valve 1 and the second pneumatic-electric valve 2, and the three-position three-way valve is in a closed state under the condition that the two pneumatic-electric valves are not electrified. When the first electrogas valve 1 is electrified, working gas enters the gas path from the gas inlet 7, the gas path is controlled by the first electrogas valve 1 to open the first vent valve 14 and the first overflow valve 13, the working gas is communicated with the first working gas interface 4, and at the moment, gas in the second working gas interface 5 is exhausted into the atmosphere through the gas outlet 20 on the first overflow valve 13; when the second electrogas valve 2 is electrified, working gas enters the gas path from the gas inlet 7, the gas path is controlled by the second electrogas valve 2 to open the second gas vent valve 15 and the second overflow valve 16, the working gas is communicated with the second working gas interface 5, and at the moment, the gas in the first working gas interface 4 is discharged into the atmosphere through the interface 21 on the second overflow valve 16; when the first pneumatic-electric valve 1 and the second pneumatic-electric valve 2 are electrified and work simultaneously, working gas enters the gas path from the gas inlet 7, the first vent valve 14, the first overflow valve 13, the second vent valve 15 and the second overflow valve 16 are all opened, and the working gas is directly discharged into the atmosphere from the first overflow valve 13 and the second overflow valve 16.
According to the three-position three-way valve, the two pneumatic control stop valves are used as air overflow valves and are arranged on two sides of the valve block, the two stop valves are used as vent valves and are arranged in the middle of the valve block, and the installation directions of the air overflow valves and the vent valves are opposite, so that the three-position three-way valve is compact in layout. In addition, the three-position three-way valve of the invention makes full use of limited working space, compact layout and small volume by arranging the two gas-electric valves, the electric control interface, the gas inlet, the working gas interface, the gas outlet, the vent valve and the gas overflow valve on the valve block in an integral three-dimensional structure. At present, a common pneumatic directional control valve mostly adopts a slide valve form, the slide valve structure form is suitable for a gas working medium with lower pressure, and the internal leakage phenomenon of untight sealing can occur when the working gas pressure is more than 2MPa, so that the strict requirement of a special vehicle on the control valve can not be met. According to the three-position three-way valve, the vent valve and the air overflow valve are of the stop structures, the pressure application range of the air path is expanded, and the applicable pressure range is 1-15 MPa.
Preferably, the top of the valve block 3 is provided with two stepped holes: first and second stepped holes 31 and 32: the first electropneumatic valve 1 is tightly mounted in the first stepped bore 31 and the second electropneumatic valve 2 is tightly mounted in the second stepped bore 32. The valve block is provided with the step hole, and the gas-electric valve is arranged in the step hole, so that the three-position three-way valve disclosed by the invention is more compact in structure and smaller in size.
Preferably, the rubber ring is a mixed nitrile rubber ring. The pneumatic direction control valve in the prior art has narrow applicable temperature range, the pressure bearing capacity of a sealing element is insufficient at higher or lower temperature, particularly the temperature applicable range of the sealing element is within minus 20 ℃ to plus 80 ℃, and the pneumatic direction control valve cannot be used when the temperature applicable range exceeds the range. The invention uses the mixed nitrile rubber as the sealing rubber ring, so that the three-position three-way valve has better sealing function when used in a working environment of-40 to +120 ℃; the three-position three-way valve can continuously work for 10 hours at the temperature of +150 ℃ and can bear the gas pressure of 7MPa, so that the three-position three-way valve can meet the working requirements of special vehicles in high and low temperature environments.
Preferably, the valve block is 7075 aluminum alloy material. By using the 7075 aluminum alloy valve block, the weight of the three-position three-way valve can be controlled within 2.5kg, and the three-position three-way valve is suitable for being used as a direction control valve for special vehicles and a direction control valve for aviation equipment.
It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features related to the embodiments of the present invention described above may be combined with each other as long as they do not conflict with each other. In addition, the above embodiments are only some embodiments of the present invention, not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work based on the embodiments of the present invention belong to the protection scope of the present invention.
Claims (4)
1. A three-position three-way valve comprises a valve block, two gas-electric valves arranged at the top of the valve block, an electric control interface arranged on the side wall of the valve block and used for providing power for the gas-electric valves, two working gas interfaces positioned below the electric control interface, and gas inlets positioned on the opposite sides of the working gas interfaces on the valve block; wherein a rubber ring is arranged between the pneumatic-electric valve and the valve block,
the three-position three-way valve also comprises four pneumatic control stop valves which are arranged in parallel and tightly below the air inlet, wherein the two pneumatic control stop valves positioned at the two sides of the valve block are overflow valves, the two stop valves positioned in the middle of the valve block are vent valves, and the installation directions of the overflow valves and the vent valves are opposite;
each pneumatic-electric valve respectively controls one ventilation valve and one air overflow valve;
each working gas port is communicated with the gas inlet through a vent valve; each working gas interface is communicated with an overflow valve.
2. A three-position, three-way valve according to claim 1, characterized in that the valve block is provided with two stepped bores at the top, in which the two electropneumatic valves are mounted.
3. A three-position, three-way valve according to claim 1, characterized in that the rubber ring is a compounded nitrile rubber ring.
4. A three-position, three-way valve according to any one of claims 1 to 3, characterized in that the valve block is 7075 aluminium alloy material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911401422.9A CN111043358A (en) | 2019-12-31 | 2019-12-31 | Three-position three-way valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911401422.9A CN111043358A (en) | 2019-12-31 | 2019-12-31 | Three-position three-way valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111043358A true CN111043358A (en) | 2020-04-21 |
Family
ID=70242150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911401422.9A Pending CN111043358A (en) | 2019-12-31 | 2019-12-31 | Three-position three-way valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111043358A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2531201Y (en) * | 2000-05-30 | 2003-01-15 | 复旦大学科教仪器厂 | High-efficiency combined gas separating magnetic valve |
| CH694534A5 (en) * | 2003-07-07 | 2005-03-15 | Lacom Gmbh | Valve device is for control of at least one fluid flow with at least one first and one second connections to housing together with slider device for cut-off of fluid flow between connections |
| US20090250883A1 (en) * | 2008-04-03 | 2009-10-08 | Toyota Boshoku Kabushiki Kaisha | Joint structure and joining method |
| CN211202986U (en) * | 2019-12-31 | 2020-08-07 | 新乡市新华液压机械有限公司 | Three-position three-way valve |
-
2019
- 2019-12-31 CN CN201911401422.9A patent/CN111043358A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2531201Y (en) * | 2000-05-30 | 2003-01-15 | 复旦大学科教仪器厂 | High-efficiency combined gas separating magnetic valve |
| CH694534A5 (en) * | 2003-07-07 | 2005-03-15 | Lacom Gmbh | Valve device is for control of at least one fluid flow with at least one first and one second connections to housing together with slider device for cut-off of fluid flow between connections |
| US20090250883A1 (en) * | 2008-04-03 | 2009-10-08 | Toyota Boshoku Kabushiki Kaisha | Joint structure and joining method |
| CN211202986U (en) * | 2019-12-31 | 2020-08-07 | 新乡市新华液压机械有限公司 | Three-position three-way valve |
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