CN108591542B - Four-position double three-way electromagnetic valve - Google Patents
Four-position double three-way electromagnetic valve Download PDFInfo
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- CN108591542B CN108591542B CN201810766677.4A CN201810766677A CN108591542B CN 108591542 B CN108591542 B CN 108591542B CN 201810766677 A CN201810766677 A CN 201810766677A CN 108591542 B CN108591542 B CN 108591542B
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- 238000007789 sealing Methods 0.000 claims description 13
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000006837 decompression Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
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
- F16K11/24—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 electromagnetically-operated valve, e.g. for washing machines
-
- 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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0675—Electromagnet aspects, e.g. electric supply therefor
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Magnetically Actuated Valves (AREA)
- Fluid-Driven Valves (AREA)
- Multiple-Way Valves (AREA)
Abstract
The invention provides a four-position double three-way electromagnetic valve, which comprises a base, a rear cover plate, a first reversing piston, a first reversing valve core, a second reversing valve core, a valve body, a second reversing piston, a guide head, a first two-position three-normally closed electromagnetic valve and a second two-position three-normally closed electromagnetic valve, wherein the base is provided with a first reversing valve core and a second reversing valve core; the valve body is internally provided with a left valve core cavity and a right valve core cavity, a first reversing valve core and a second reversing valve core are respectively arranged in the left valve core cavity and the right valve core cavity, a baffle is arranged between the left valve core cavity and the right valve core cavity, and the left valve core cavity and the right valve core cavity are communicated at an air passage at the intersection of the baffle; the left side of the first reversing valve core is connected with a first reversing piston, the rear cover plate is connected to the left side of the valve body, and the first reversing piston is arranged in a piston cavity in the left side of the valve body or the rear cover plate; the right side of the second reversing valve core is connected with a second reversing piston, and the second reversing piston is arranged in a piston cavity on the right side of the valve body; the invention realizes the free energization switching of the double valve cores of the four-position double three-way electromagnetic valve.
Description
Technical Field
The invention relates to an electromagnetic valve, in particular to a four-position double three-way electromagnetic valve.
Background
In a pneumatic system, an electromagnetic valve is a component widely used in a pneumatic loop, and is mainly applied to a three-position five-way electromagnetic valve, a two-position five-way electromagnetic valve and the like at most, and the simultaneous power-on operation switching of two ends of the electromagnetic valve cannot be realized.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a four-position double-tee electromagnetic valve, which realizes free energization switching of double valve cores of the four-position double-tee electromagnetic valve, realizes simultaneous energization operation switching of two routes of electromagnetic valves and is not mutually interfered. The technical scheme adopted by the invention is as follows:
a four-position double three-way electromagnetic valve comprises a base, a rear cover plate, a first reversing piston, a first reversing valve core, a second reversing valve core, a valve body, a second reversing piston, a pilot head, a first two-position three-normally closed electromagnetic valve and a second two-position three-normally closed electromagnetic valve;
the valve body is internally provided with a left valve core cavity and a right valve core cavity, a first reversing valve core and a second reversing valve core are respectively arranged in the left valve core cavity and the right valve core cavity, a baffle is arranged between the left valve core cavity and the right valve core cavity, and the left valve core cavity and the right valve core cavity are communicated at an air passage at the intersection of the baffle; the left side of the first reversing valve core is connected with a first reversing piston, the rear cover plate is connected to the left side of the valve body, and the first reversing piston is arranged in a piston cavity in the left side of the valve body or the rear cover plate; the right side of the second reversing valve core is connected with a second reversing piston, and the second reversing piston is arranged in a piston cavity on the right side of the valve body;
the pilot head is arranged on the valve body and comprises an air inlet P port of the pilot head, a first pilot hole and a second pilot hole; the first pilot hole of the pilot head is communicated with a piston cavity at the left side of the first reversing piston through an air passage in the valve body and an air passage in the rear cover plate; the second pilot hole of the pilot head is communicated with a piston cavity on the right side of the second reversing piston through an air passage in the valve body;
a valve body first exhaust port R1 and a valve body first working port A which are communicated with a valve core cavity where a first reversing valve core is located are arranged in the valve body, and a valve body second working port B and a valve body second exhaust port R2 which are communicated with a valve core cavity where a second reversing valve core is located are arranged; a valve body air inlet P port is arranged at the intersection of the left valve core cavity and the right valve core cavity; the valve body air inlet P port on the valve body is communicated with the air inlet P port of the guide head;
the valve body and the base are assembled into a whole; the valve body first air outlet R1 on the valve body is communicated with the base first air outlet R1 on the base 2, the valve body first working port A on the valve body is communicated with the base first working port A on the base, the valve body air inlet P on the valve body is communicated with the base air inlet P on the base, the valve body second working port B on the valve body is communicated with the base second working port B on the base, and the valve body second air outlet R2 on the valve body is communicated with the base second air outlet R2 on the base;
the first two-position three-normally closed electromagnetic valve and the second two-position three-normally closed electromagnetic valve are arranged at the right end of the valve body; the working port A of the first two-position three-normally closed electromagnetic valve is communicated with a piston cavity at the left side of the first reversing piston through an air passage in the valve body and an air passage in the rear cover plate; the air inlet P of the second two-position three-normally closed electromagnetic valve is communicated with the air inlet P of the valve body on the valve body, and the working opening A of the second two-position three-normally closed electromagnetic valve is communicated with the piston cavity on the right side of the second reversing piston through an air passage in the valve body.
Further, an air passage distribution plate is arranged between the valve body and the two-position three-way normally-closed solenoid valves, and an air passage communicated between the two-position three-way normally-closed solenoid valves and the valve body is arranged in the air passage distribution plate.
Further, a circuit board is arranged on the valve body and is respectively connected with the electric interfaces of the first two-position three-normally closed electromagnetic valve and the second two-position three-normally closed electromagnetic valve.
Further, the circuit board is mounted on the intermediate board; the middle plate is positioned between the valve body and the two-position three-way normally closed electromagnetic valves; the middle plate is provided with an air passage communicated between the two-position three-way normally closed electromagnetic valve and the valve body.
Further, the first exhaust port R1 and the second exhaust port R2 on the base are communicated with the atmosphere.
Further, the exhaust port R of the first two-position three-normally closed solenoid valve and the exhaust port R of the second two-position three-normally closed solenoid valve are vented to the atmosphere.
Further, the base is respectively connected with a first pipe joint and a second pipe joint; the first pipe joint is communicated with a first working port A of the base on the base; the second pipe joint is communicated with a second working port B of the base on the base.
Further, valve element sealing rings are arranged on the first reversing valve element and the second reversing valve element.
Further, a first piston sealing ring is arranged on the first reversing piston.
Further, a second piston sealing ring is arranged on the second reversing piston.
The invention has the advantages that: the invention realizes the integration of the four-position double three-way electromagnetic valve, realizes the switching of different flow channels of the electromagnetic valve through the position switching of the valve core and the valve body of the electromagnetic valve, and realizes the simultaneous switching of the energizing operation of the two coils of the electromagnetic valve without mutual interference.
Drawings
FIG. 1 is a schematic diagram of the structural composition of the present invention.
Fig. 2 is a schematic longitudinal view of the internal structure of the base of the present invention.
Fig. 3 is a schematic top view of the pilot head of the present invention.
Detailed Description
The invention will be further described with reference to the following specific drawings and examples.
As shown in fig. 1, the four-position double three-way electromagnetic valve provided by the invention comprises a first pipe joint 1a, a second pipe joint 1b, a base 2, a pipe joint fixing retainer ring 3, a rear cover plate 4, a first reversing piston 5, a first reversing valve core 6, a first piston sealing ring 7, a second reversing valve core 8, a valve core sealing ring 9, a valve body 10, a second reversing piston 11, a second piston sealing ring 13, a guide head 12, a circuit board 14, an intermediate plate 15, a gas circuit distribution plate 16, a first two-position three-way normally closed electromagnetic valve 17 and a second two-position three-way normally closed electromagnetic valve 18;
the valve body 10 is provided with a left valve core cavity and a right valve core cavity, a first reversing valve core 6 and a second reversing valve core 8 are respectively arranged in the left valve core cavity and the right valve core cavity, and valve core sealing rings 9 are respectively arranged on the first reversing valve core 6 and the second reversing valve core 8; a baffle 1001 is arranged between the left valve core cavity and the right valve core cavity, and the left valve core cavity and the right valve core cavity are communicated at the air passage at the intersection of the baffle 1001; for example, an air passage communicating the left and right spool chambers may be provided below the baffle 1001; the left side of the first reversing valve core 6 is connected with a first reversing piston 5, and a first piston sealing ring 7 is arranged on the first reversing piston 5; the rear cover plate 4 is connected to the left side of the valve body 10, and the first reversing piston 5 is positioned in a piston cavity in the rear cover plate 4; in other embodiments, the first reversing piston 5 may also be disposed in a piston chamber on the left side of the valve body 10, and the rear cover plate 4 is provided with an air passage communicated with the piston chamber on the left side of the valve body;
the right side of the second reversing valve core 8 is connected with a second reversing piston 11, and the second reversing piston 11 is arranged in a piston cavity on the right side of the valve body 10; a second piston sealing ring 13 is arranged on the second reversing piston 11; the pilot head 12 is arranged on the valve body 10, and the pilot head 12 comprises an air inlet P port of the pilot head 12, a first pilot hole 1201 and a second pilot hole 1202 as shown in fig. 3; the first pilot hole 1201 of the pilot head 12 is communicated with a piston cavity at the left side of the first reversing piston 5 through an air passage in the valve body 10 and an air passage in the rear cover plate 4; the second pilot hole 1202 of the pilot head 12 is communicated with a piston cavity on the right side of the second reversing piston 11 through an air passage in the valve body 10;
a valve body first exhaust port R1 and a valve body first working port A which are communicated with a valve core cavity where a first reversing valve core 6 is positioned are arranged in the valve body 1, and a valve body second working port B and a valve body second exhaust port R2 which are communicated with a valve core cavity where a second reversing valve core 8 is positioned are arranged; a valve body air inlet P port is arranged at the intersection of the left valve core cavity and the right valve core cavity; the valve body air inlet P port on the valve body 10 is communicated with the air inlet P port of the pilot head 12;
the valve body 10 is assembled with the base 2 into a whole; the first exhaust port R1 of the valve body 10 is communicated with the first exhaust port R1 of the base 2, the first working port A of the valve body 10 is communicated with the first working port A of the base 2, the inlet P of the valve body 10 is communicated with the inlet P of the base 2, the second working port B of the valve body 10 is communicated with the second working port B of the base 2, and the second exhaust port R2 of the valve body 10 is communicated with the second exhaust port R2 of the base 2; the first exhaust port R1 of the base and the second exhaust port R2 of the base on the base 2 are communicated with the atmosphere; the first pipe joint 1a and the second pipe joint 1b are respectively connected to the side surface of the base 2 through a pipe joint fixing check ring 3; the first pipe joint 1a is communicated with a first working port A of a base on the base 2; the second pipe joint 1B is communicated with a second working port B of the base on the base 2;
the first two-position three-normally closed electromagnetic valve 17 and the second two-position three-normally closed electromagnetic valve 18 are arranged at the right end of the valve body 10; the air inlet P of the first two-position three-way normally closed electromagnetic valve 17 is communicated with the air inlet P of the valve body on the valve body 10, and the working port A of the first two-position three-way normally closed electromagnetic valve 17 is communicated with the piston cavity on the left side of the first reversing piston 5 through an air passage in the valve body 10 and an air passage in the rear cover plate 4; the exhaust port R of the first two-position three-normally closed electromagnetic valve 17 is communicated with the atmosphere; the air inlet P of the second two-position three-way normally closed electromagnetic valve 18 is communicated with the air inlet P of the valve body on the valve body 10, and the working port A of the second two-position three-way normally closed electromagnetic valve 18 is communicated with the piston cavity on the right side of the second reversing piston 11 through an air passage in the valve body 10; the second two-position three-way normally closed electromagnetic valve 18 has its exhaust port R vented to atmosphere;
the middle plate 15 and the gas path distributing plate 16 are positioned between the valve body 10 and the two-position three-way normally closed electromagnetic valves; the middle plate 15 and the air path distribution plate 16 are provided with air paths communicated between the two-position three-normally closed electromagnetic valve and the valve body 10;
the circuit board 14 is arranged on the valve body 10, and the middle plate 15 can be used as a mounting support plate of the circuit board 14; the circuit board 14 is respectively connected with the electrical interfaces of the first two-position three-normally closed electromagnetic valve 17 and the second two-position three-normally closed electromagnetic valve 18;
after the coil of the first two-position three-normally closed electromagnetic valve 17 is electrified, the first two-position three-normally closed electromagnetic valve 17 commutates, and gas enters from the gas inlet P port of the valve body on the valve body 10, wherein a small part of gas flows through the channel of the gas inlet P port- > the first pilot hole 1201 of the pilot head 12 as pilot gas, and a large part of gas flows through the gas inlet P port- > the working port A port of the first two-position three-normally closed electromagnetic valve 17 and is guided to the left piston cavity of the first commutating piston 5; because the stressed area of the first reversing piston 5 is obviously larger than the stressed area of the right end of the first reversing valve core 6 (the gas entering from the gas inlet P of the valve body on the valve body 10 has a smaller acting force on the right end of the first reversing valve core 6), the first reversing piston 5 is pushed to move rightwards by the action of the closed gas, so that the first reversing valve core 6 is pushed to move rightwards to the position in FIG. 1, and the reversing of the first reversing valve core on the left side is realized; when the first two-position three-normally closed electromagnetic valve 17 is powered off, the first two-position three-normally closed electromagnetic valve 17 is reset, the air inlet P of the first two-position three-normally closed electromagnetic valve 17 is normally closed, the working port A of the first two-position three-normally closed electromagnetic valve 17 is communicated with the air outlet R of the first two-position three-normally closed electromagnetic valve 17, the left piston cavity of the first reversing piston 5 is decompressed, and the air at the air inlet P of the valve body on the valve body 10 drives the first reversing valve core 6 to move left, so that the first reversing piston 5 is pushed to move to the left end limit position, and the reset reversing of the first reversing valve core 6 on the left side is realized;
in a similar manner to that described above,
after the coil of the second two-position three-way normally closed electromagnetic valve 18 is electrified, the second two-position three-way normally closed electromagnetic valve 18 commutates, and gas enters from the gas inlet P port of the valve body on the valve body 10, wherein a small part of gas flows through the channel of the gas inlet P port- > the second pilot hole 1202 of the pilot head 12 as pilot gas, and most of gas flows through the gas inlet P port- > the working port A port of the second two-position three-way normally closed electromagnetic valve 18 and is guided to the right piston cavity of the second commutating piston 11; the second reversing piston 11 is pushed to move leftwards by the action of the sealing gas, so that the second reversing valve core 8 is pushed to move rightwards to the position of the baffle 1001 in the middle of the valve body 10, and the reversing of the second reversing valve core on the right side is driven; when the second two-position three-way normally-closed electromagnetic valve 18 loses power, the second two-position three-way normally-closed electromagnetic valve 18 is reset, the air inlet P of the second two-position three-way normally-closed electromagnetic valve 18 is normally closed, the working port A of the second two-position three-way normally-closed electromagnetic valve 18 is communicated with the air outlet R of the second three-way normally-closed electromagnetic valve, the right side piston cavity of the second reversing piston 11 is in decompression, and the air at the air inlet P of the valve body on the valve body 10 drives the second reversing valve core 8 to move right, so that the second reversing piston 11 is pushed to move to the right-end limiting position, and the reset reversing of the right side second reversing valve core 8 is realized.
Finally, it should be noted that the above-mentioned embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same, and although the present invention has been described in detail with reference to examples, it should be understood by those skilled in the art that modifications and equivalents may be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention, and all such modifications and equivalents are intended to be encompassed in the scope of the claims of the present invention.
Claims (10)
1. The four-position double three-way electromagnetic valve is characterized by comprising a base (2), a rear cover plate (4), a first reversing piston (5), a first reversing valve core (6), a second reversing valve core (8), a valve body (10), a second reversing piston (11), a pilot head (12), a first two-position three-way normally closed electromagnetic valve (17) and a second two-position three-way normally closed electromagnetic valve (18);
a left valve core cavity and a right valve core cavity are arranged in the valve body (10), a first reversing valve core (6) and a second reversing valve core (8) are respectively arranged in the left valve core cavity and the right valve core cavity, a baffle (1001) is arranged between the left valve core cavity and the right valve core cavity, and the left valve core cavity and the right valve core cavity are communicated at an air passage at the intersection of the baffle (1001); the left side of the first reversing valve core (6) is connected with a first reversing piston (5), the rear cover plate (4) is connected to the left side of the valve body (10), and the first reversing piston (5) is arranged in a piston cavity on the left side of the valve body (10) or in the rear cover plate (4); the right side of the second reversing valve core (8) is connected with a second reversing piston (11), and the second reversing piston (11) is arranged in a piston cavity on the right side of the valve body (10);
the pilot head (12) is arranged on the valve body (10), and the pilot head (12) comprises an air inlet P port of the pilot head (12), a first pilot hole (1201) and a second pilot hole (1202); the first pilot hole (1201) of the pilot head (12) is communicated with a piston cavity at the left side of the first reversing piston (5) through an air passage in the valve body (10) and an air passage in the rear cover plate (4); the second pilot hole (1202) of the pilot head (12) is communicated with a piston cavity on the right side of the second reversing piston (11) through an air passage in the valve body (10);
a valve body first exhaust port R1 and a valve body first working port A which are communicated with a valve core cavity where a first reversing valve core (6) is arranged in a valve body (1), and a valve body second working port B and a valve body second exhaust port R2 which are communicated with a valve core cavity where a second reversing valve core (8) is arranged; a valve body air inlet P port is arranged at the intersection of the left valve core cavity and the right valve core cavity; the valve body air inlet P port on the valve body (10) is communicated with the air inlet P port of the pilot head (12);
the valve body (10) and the base (2) are assembled into a whole; the valve body first air outlet R1 on the valve body (10) is communicated with the base first air outlet R1 on the base (2), the valve body first working opening A on the valve body (10) is communicated with the base first working opening A on the base (2), the valve body air inlet P on the valve body (10) is communicated with the base air inlet P on the base (2), the valve body second working opening B on the valve body (10) is communicated with the base second working opening B on the base (2), and the valve body second air outlet R2 on the valve body (10) is communicated with the base second air outlet R2 on the base (2);
the first two-position three-normally closed electromagnetic valve (17) and the second two-position three-normally closed electromagnetic valve (18) are arranged at the right end of the valve body (10); the air inlet P of the first two-position three-normally closed electromagnetic valve (17) is communicated with the air inlet P of the valve body on the valve body (10), and the working port A of the first two-position three-normally closed electromagnetic valve (17) is communicated with a piston cavity at the left side of the first reversing piston (5) through an air passage in the valve body (10) and an air passage in the rear cover plate (4); the air inlet P of the second two-position three-way normally closed electromagnetic valve (18) is communicated with the air inlet P of the valve body on the valve body (10), and the working port A of the second two-position three-way normally closed electromagnetic valve (18) is communicated with a piston cavity on the right side of the second reversing piston (11) through an air passage in the valve body (10).
2. A four-position double three-way electromagnetic valve according to claim 1, wherein,
an air passage distribution plate (16) is arranged between the valve body (10) and two-position three-way normally closed electromagnetic valves (17, 18), and an air passage communicated between the two-position three-way normally closed electromagnetic valves and the valve body (10) is arranged in the air passage distribution plate (16).
3. A four-position double three-way electromagnetic valve according to claim 1, wherein,
the valve body (10) is also provided with a circuit board (14), and the circuit board (14) is respectively connected with the electric interfaces of the first two-position three-normally closed electromagnetic valve (17) and the second two-position three-normally closed electromagnetic valve (18).
4. A four-position double three-way electromagnetic valve according to claim 3, wherein,
the circuit board (14) is arranged on the middle board (15); the middle plate (15) is positioned between the valve body (10) and two-position three-normally closed electromagnetic valves (17, 18); an air passage communicated between the two-position three-way normally closed electromagnetic valve and the valve body (10) is arranged in the intermediate plate (15).
5. A four-position double three-way electromagnetic valve according to claim 1, wherein,
the first exhaust port R1 of the base and the second exhaust port R2 of the base on the base (2) are communicated with the atmosphere.
6. A four-position double three-way electromagnetic valve according to claim 1, wherein,
the exhaust port R of the first two-position three-normally closed electromagnetic valve (17) and the exhaust port R of the second two-position three-normally closed electromagnetic valve (18) are communicated with the atmosphere.
7. A four-position double three-way electromagnetic valve according to claim 1, wherein,
the base (2) is respectively connected with a first pipe joint (1 a) and a second pipe joint (1 b); the first pipe joint (1 a) is communicated with a first working port A of the base on the base (2); the second pipe joint (1B) is communicated with a second working port B of the base on the base (2).
8. A four-position double three-way electromagnetic valve according to claim 1, wherein,
valve element sealing rings (9) are arranged on the first reversing valve element (6) and the second reversing valve element (8).
9. A four-position double three-way electromagnetic valve according to claim 1, wherein,
a first piston sealing ring (7) is arranged on the first reversing piston (5).
10. A four-position double three-way electromagnetic valve according to claim 1, wherein,
the second reversing piston (11) is provided with a second piston sealing ring (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810766677.4A CN108591542B (en) | 2018-07-13 | 2018-07-13 | Four-position double three-way electromagnetic valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810766677.4A CN108591542B (en) | 2018-07-13 | 2018-07-13 | Four-position double three-way electromagnetic valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108591542A CN108591542A (en) | 2018-09-28 |
| CN108591542B true CN108591542B (en) | 2024-02-13 |
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ID=63618269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810766677.4A Active CN108591542B (en) | 2018-07-13 | 2018-07-13 | Four-position double three-way electromagnetic valve |
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| Country | Link |
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| CN (1) | CN108591542B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008075760A (en) * | 2006-09-21 | 2008-04-03 | Daikin Ind Ltd | Four-way selector valve for refrigerant |
| CN201836446U (en) * | 2010-11-04 | 2011-05-18 | 无锡埃氟隆流体控制器有限公司 | Multipurpose pilot type two-position five-way electromagnetic valve |
| CN204114235U (en) * | 2014-10-09 | 2015-01-21 | 上海邦业气动液压件有限公司 | A kind of leading type two-position-five-way solenoid valve |
| CN208442326U (en) * | 2018-07-13 | 2019-01-29 | 无锡气动技术研究所有限公司 | Four double three-way magnetic valves |
-
2018
- 2018-07-13 CN CN201810766677.4A patent/CN108591542B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008075760A (en) * | 2006-09-21 | 2008-04-03 | Daikin Ind Ltd | Four-way selector valve for refrigerant |
| CN201836446U (en) * | 2010-11-04 | 2011-05-18 | 无锡埃氟隆流体控制器有限公司 | Multipurpose pilot type two-position five-way electromagnetic valve |
| CN204114235U (en) * | 2014-10-09 | 2015-01-21 | 上海邦业气动液压件有限公司 | A kind of leading type two-position-five-way solenoid valve |
| CN208442326U (en) * | 2018-07-13 | 2019-01-29 | 无锡气动技术研究所有限公司 | Four double three-way magnetic valves |
Non-Patent Citations (1)
| Title |
|---|
| 二位四通水液压换向阀的设计与试验研究;陈远玲;魏威;任瑞文;卢煜海;杨青松;;液压与气动(第06期);全文 * |
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| Publication number | Publication date |
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| CN108591542A (en) | 2018-09-28 |
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