CN203082264U - Three-way reversing valve for agricultural irrigation - Google Patents
Three-way reversing valve for agricultural irrigation Download PDFInfo
- Publication number
- CN203082264U CN203082264U CN 201320046607 CN201320046607U CN203082264U CN 203082264 U CN203082264 U CN 203082264U CN 201320046607 CN201320046607 CN 201320046607 CN 201320046607 U CN201320046607 U CN 201320046607U CN 203082264 U CN203082264 U CN 203082264U
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- valve
- piston chamber
- valve body
- seal ring
- guide pillar
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Abstract
The utility model discloses a three-way reversing valve for agricultural irrigation. The three-way reversing valve for the agricultural irrigation comprises a valve body and a valve core, wherein a first flow channel and a second flow channel are formed in two ends of the valve body respectively, a valve core assembly hole is formed in the upper side of the middle of the cave body, a third flow channel is formed in the lower side of the middle of the valve body, a baffle plate is arranged at the upper end inside the first flow channel, extends downwards and does not plug the first flow channel, a first guide sleeve is fixed on the inner side of the baffle plate, another first guide sleeve is fixed at the lower end inside the second flow channel, an end cover is connected on the third flow channel, and a second guide sleeve is fixed at the inner end of the end cover. The valve core is of a piston type structure and mainly comprises a piston chamber, a guide column and a rubber sealing ring, wherein the piston chamber is assembled on the valve core assembly hole of the valve body in a sealing mode, a pilot port is arranged on the piston chamber, the upper end of the guide column is located inside the piston chamber, a return spring is mounted at the upper end of the guide column in a sleeved mode, the lower end of the guide column extends into the valve body, the rubber sealing ring is assembled at the lower end of the guide column through a sealing ring fixing base, and under the action of a pressure medium inside the piston chamber, the guide column drives the rubber sealing ring to be arranged on the first guide sleeve or the second guide sleeve for sealing, so that reversing is realized.
Description
Technical field
The utility model relates to agricultural irrigation equipment, specifically is a kind of agricultural irrigation three-way diverter valve.
Background technique
In the sprinkling irrigation operation of agricultural production, need to use and filter filtered water liquid, in order to avoid shower nozzle stops up.In order to prevent that filter from being stopped up by the impurity in the water liquid, on filter, usually supporting three-way diverter valve and solenoid valve can be set, so that make filter realize automatic backwash, cleaning and filtering.At present, the three-way diverter valve that agricultural irrigation is used always is owing to structural design is unreasonable, there are defectives such as water resistance is big, operation is dumb, rate of fault height, particularly under the situation that sediment charge is big in the water liquid, guide pin bushing on the valve body and the easier damage of the rubber seal ring on the spool, guide pin bushing is on the valve body and the permanent fixation structure of rubber seal ring on spool in addition, can not change after making guide pin bushing and rubber seal ring by the silt underwashing wearing and tearing, have a strong impact on normally carrying out of agricultural irrigation operation, reliability is low, poor practicability.
Summary of the invention
The purpose of this utility model is: at above-mentioned the deficiencies in the prior art, provide that a kind of water resistance is little, flexible operation, durable in use, maintain easily, reliable and practical agricultural irrigation three-way diverter valve.
The technical solution adopted in the utility model is: a kind of agricultural irrigation three-way diverter valve, comprise valve body and spool, described two ends of valve body is respectively equipped with the first flow and second runner, the upper and lower side in the middle part of valve body is respectively equipped with spool pilot hole and the 3rd runner, the interior upper end of described first flow is provided with the downward extension and the baffle plate of shutoff first flow not, interior lower end inboard at baffle plate and second runner is fixed with first guide pin bushing that spool sets respectively, be connected with the end cover of downward extension on described the 3rd runner, be fixed with second guide pin bushing that spool sets in the inner of end cover; Described spool is a piston cylinder operator, mainly constitute by piston chamber, guide pillar and rubber seal ring, piston chamber's sealing is assemblied on the spool pilot hole of valve body, piston chamber is provided with the pilot port that connects pilot valve, the upper end of guide pillar is in piston chamber, and be set with Returnning spring in the upper end of guide pillar, the lower end of guide pillar extends in the valve body, described rubber seal ring is assemblied in the lower end of guide pillar by the seal ring fixed base, under the pressure medium effect in piston chamber, guide pillar drives rubber seal ring and sets on first guide pin bushing or second guide pin bushing, realizes commutation.
Described piston chamber mainly is made of upper press cover and the lower cover that the world is sealed and matched, and at piston chamber's internal fixation the valve barrier film is arranged, and this valve barrier film is connected with barrier film fixed plate on the guide pillar; Described pilot port is divided into first pilot port and second pilot port, described first pilot port is located at the top of upper press cover, described second pilot port is located at the sidewall of lower cover, according to enabling of first pilot port or second pilot port, the barrier film fixed plate on the guide pillar can switch between the top and bottom of Returnning spring under artificial interference.
The bottom of described lower cover is assemblied in the spool pilot hole of valve body by the seal ring sealing; Described guide pillar passes lower cover by the oil sealing on the lower cover, extends into valve body.
Has at least one water liquid chamber on the described rubber seal ring; Described seal ring fixed base be provided with rubber seal ring on the corresponding pod apertures of water liquid chamber.
Described first guide pin bushing is fixed on the interior lower end of the baffle plate and second runner threadably.
Described second guide pin bushing is fixed on the inner of end cover threadably.
The beneficial effects of the utility model are: the three-way diverter valve of said structure has been optimized valve body structure, has reduced water resistance, and spool employing piston-like, just can easily realize commutation, flexible operation by the pressure medium in the valve core piston chamber; The piston chamber of spool has formed the twin-tub structure by the valve barrier film, can enable different cylinders according to the sediment charge in the water liquid, and then changes the through-flow mode of water liquid, reduces fault occurrence frequency, has prolonged working life; In addition, easily worn parts such as the rubber seal ring on the spool, and the easily worn parts such as guide pin bushing on the valve body are all fixed with engage thread for convenience detach, in case the wearing and tearing of these easily worn parts, just can be easily, replacing timely, the reliability height, practical.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further described.
Fig. 1 is that the utility model is at the many user mode schematic representation of sediment charge in the water liquid.
Fig. 2 is the utility model at the user mode schematic representation that sediment charge is few in the water liquid.
Code name implication among the figure: 1-valve body; 2-diaphragm seal groove; 3-piston chamber; 4-Returnning spring; 5-guide pillar; 6-the first pilot port; 7-nut; 8-barrier film fixed plate; 9-valve barrier film; 10-upper press cover; 11-lower cover; 12-the second pilot port; 13-oil sealing; 14-the first guide pin bushing; 15-rubber seal ring; 16-the second guide pin bushing; 17-seal ring fixed base; 18-end cover; 19-baffle plate; 20-first flow; 21-the second runner; 22-the three runner.
Embodiment
Referring to Fig. 1 and Fig. 2: the utility model comprises valve body 1 and spool.
Wherein, the two ends of valve body 1 are respectively equipped with the first flow 20 and second runner 21, and the upper and lower side in the middle part of valve body 1 is respectively equipped with spool pilot hole and the 3rd runner 22, and valve body 1 is four-way shape structure.The interior upper end of first flow 20 (promptly along the spool pilot hole) is provided with the downward extension and the baffle plate 19 of shutoff first flow 20 not, be fixed with by thread connecting mode respectively between first guide pin bushing, 14, the first guide pin bushings 14 that spool sets and the baffle plate 19 and between the interior lower end of first guide pin bushing 14 and second runner 21 in the interior lower end of the inboard of baffle plate 19 lower ends and second runner 21 and be respectively equipped with the O RunddichtringO.The diameter of the 3rd runner 22 is connected with the end cover 18 of downward extension greater than the diameter between the lower end in the baffle plate 19 and second runner 21 on the 3rd runner 22, be provided with the O RunddichtringO between end cover the 18 and the 3rd runner 22; Be fixed with second guide pin bushing, 16, the second guide pin bushings 16 that spool sets with thread connecting mode in the inner of end cover 18 and be provided with the O RunddichtringO between overlapping with end, the axial position of second guide pin bushing 16 and diameter are all corresponding with first guide pin bushing 14.
Spool is a piston cylinder operator, and spool mainly is made of piston chamber 3, guide pillar 5 and rubber seal ring 15.Upper press cover 10 and lower cover 11 that piston chamber 3 mainly is sealed and matched by the world constitute, and are provided with O RunddichtringO and diaphragm seal groove 2 between upper press cover 10 and the lower cover 11, and the bottom of lower cover 11 is assemblied in the spool pilot hole of valve body 1 by the sealing of O RunddichtringO; Be fixed with valve barrier film 9 by diaphragm seal groove 2 in piston chamber 3, the core of this valve barrier film 9 in piston chamber 3 spaces is connected with barrier film fixed plate 8 on the guide pillar 5; Be provided with first pilot port 6 that connects pilot valve at the top of upper press cover 10, also be provided with second pilot port 12 of connection pilot valve at the sidewall of lower cover 11.The upper end of guide pillar 5 is in piston chamber 3, the upper end of guide pillar 5 connects barrier film fixed plate 8 by nut 7, and be set with Returnning spring 4 in the upper end of guide pillar 5, barrier film fixed plate 8 and the Returnning spring 4 position relation on guide pillar 5, it is the situation of enabling according to first pilot port 6 in the piston chamber 3 or second pilot port 12, under artificial interference, do (Fig. 1 septation fixed plate 8 is in the upper end of Returnning spring 4, and Fig. 2 septation fixed plate 8 is in the lower end of Returnning spring 4) of switching; Lower cover 11 is passed in the lower end of guide pillar 5, and extends in the valve body 1, is provided with oil sealing 13 between guide pillar 5 and the lower cover 11, and this oil sealing 13 is fixed on the lower cover 11 by oil seal cover.The water liquid chamber that has a plurality of annulars on the rubber seal ring 15, rubber seal ring 15 is assemblied in the lower end of guide pillar 5 by seal ring fixed base 17, seal ring fixed base 17 be provided with rubber seal ring 15 on the corresponding pod apertures of water liquid chamber, rubber seal ring 15 is realized good expansion sealing by the water liquid of coming in the water liquid chamber, and makes the internal and external pressure balance of rubber seal ring 15 by water liquid.Under the pressure medium effect in piston chamber 3, guide pillar 5 can drive rubber seal rings 15 and set on first guide pin bushing 14 of valve body 1 or second guide pin bushing 16, realizes commutation.
Concrete working procedure of the present utility model is divided following two kinds of situations:
1. work as the more situation of sediment charge (as shown in Figure 1) in the water liquid: the upper end that the barrier film fixed plate 8 of spool is switched in Returnning spring 4; When proper functioning, the rubber seal ring 15 of spool sets on first guide pin bushing 14 of valve body 1, and second runner 21 is cut off, and unfiltered water liquid enters valve body 1 from the 3rd runner 22, flow to filter from first flow 20, carries out water liquid and filters; When filter rinsed, to inject in the piston chamber 3 from first pilot port 6 of piston chamber 3 with the water liquid (or gas) of equal pressure by the miniature two-bit triplet solenoid valve of small flow, the pressure of water liquid (or gas) promotes valve barrier film 9 gradually, valve barrier film 9 drives barrier film fixed plate 8 and guide pillar 5 moves down, guide pillar 5 is when moving, the seal ring fixed base 17 and the rubber seal ring 15 that drive the lower end move down, withdraw from first guide pin bushing 14, move on second guide pin bushing 16 until seal ring fixed base 17 and rubber seal ring 15, the 3rd runner 22 is cut off shutoff, at this moment, the first flow 20 and second runner 21 are got through, rinse water liquid and impurity are discharged through second runner 21 from first flow 20 counter flowing through; Filter cleans when finishing, solenoid valve is opened first pilot port 6 in the piston chamber 3, the upper cylinder half of piston chamber 3 loses pressure, unfiltered water liquid forms pressure at the 3rd runner 22 places, and promote seal ring fixed base 17 and rubber seal ring 15 moves up, guide pillar 5 withdraws from second guide pin bushing 16 under the effect of water hydraulic power and Returnning spring 4, move to first guide pin bushing, 14 places until seal ring fixed base 17 and rubber seal ring 15, second runner 21 is cut off shutoff, the 3rd runner 22 and first flow 20 are got through, entered normal working;
2. work as the less situation of sediment charge (as shown in Figure 2) in the water liquid: the lower end that the barrier film fixed plate 8 of spool is switched in Returnning spring 4; When proper functioning, the rubber seal ring 15 of spool sets on second guide pin bushing 16 of valve body 1, and the 3rd runner 22 is cut off, and unfiltered water liquid enters valve body 1 from second runner 21, flow to filter from first flow 20, carries out water liquid and filters; When filter rinsed, to inject in the piston chamber 3 from second pilot port 12 of piston chamber 3 with the water liquid (or gas) of equal pressure by the miniature two-bit triplet solenoid valve of small flow, the pressure of water liquid (or gas) promotes valve barrier film 9 gradually, valve barrier film 9 drives barrier film fixed plate 8 and guide pillar 5 moves up, guide pillar 5 is when moving, the seal ring fixed base 17 and the rubber seal ring 15 that drive the lower end move up, withdraw from second guide pin bushing 16, move on first guide pin bushing 14 until seal ring fixed base 17 and rubber seal ring 15, second runner 21 is cut off shutoff, at this moment, first flow 20 and the 3rd runner 22 are got through, rinse water liquid and impurity are discharged through the 3rd runner 22 from first flow 20 counter flowing through; Filter cleans when finishing, solenoid valve is opened second pilot port 12 in the piston chamber 3, the following cylinder of piston chamber 3 loses pressure, unfiltered water liquid forms pressure at second runner, 21 places, and promote seal ring fixed base 17 and rubber seal ring 15 moves down, guide pillar 5 withdraws from first guide pin bushing 14 under the effect of water hydraulic power and Returnning spring 4, move to second guide pin bushing, 16 places until seal ring fixed base 17 and rubber seal ring 15, the 3rd runner 22 is cut off shutoff, second runner 21 and first flow 20 are got through, entered normal working.
Claims (6)
1. agricultural irrigation three-way diverter valve, comprise valve body (1) and spool, it is characterized in that: the two ends of described valve body (1) are respectively equipped with first flow (20) and second runner (21), on the middle part of valve body (1), downside is respectively equipped with spool pilot hole and the 3rd runner (22), the interior upper end of described first flow (20) is provided with the downward extension and the baffle plate (19) of shutoff first flow (20) not, interior lower end inboard at baffle plate (19) and second runner (21) is fixed with first guide pin bushing (14) that spool sets respectively, be connected with the end cover (18) of downward extension on described the 3rd runner (22), be fixed with second guide pin bushing (16) that spool sets in the inner of end cover (18); Described spool is a piston cylinder operator, mainly by piston chamber (3), guide pillar (5) and rubber seal ring (15) constitute, piston chamber (3) sealing is assemblied on the spool pilot hole of valve body (1), piston chamber (3) is provided with the pilot port that connects pilot valve, the upper end of guide pillar (5) is in piston chamber (3), and be set with Returnning spring (4) in the upper end of guide pillar (5), the lower end of guide pillar (5) extends in the valve body (1), described rubber seal ring (15) is assemblied in the lower end of guide pillar (5) by seal ring fixed base (17), under the pressure medium effect in piston chamber (3), guide pillar (5) drives rubber seal ring (15) and sets on first guide pin bushing (14) or second guide pin bushing (16), realizes commutation.
2. according to the described agricultural irrigation three-way diverter valve of claim 1, it is characterized in that: described piston chamber (3) mainly is made of upper press cover (10) and the lower cover (11) that the world is sealed and matched, internal fixation has valve barrier film (9) in piston chamber (3), and this valve barrier film (9) is connected with barrier film fixed plate (8) on the guide pillar (5); Described pilot port is divided into first pilot port (6) and second pilot port (12), described first pilot port (6) is located at the top of upper press cover (10), described second pilot port (12) is located at the sidewall of lower cover (11), according to enabling of first pilot port (6) or second pilot port (12), the barrier film fixed plate (8) on the guide pillar (5) can switch between the top and bottom of Returnning spring (4) under artificial interference.
3. according to the described agricultural irrigation three-way diverter valve of claim 2, it is characterized in that: the bottom of described lower cover (11) is assemblied in the spool pilot hole of valve body (1) by the seal ring sealing; Described guide pillar (5) passes lower cover (11) by the oil sealing (13) on the lower cover (11), extends into valve body (1).
4. according to the described agricultural irrigation three-way diverter valve of claim 1, it is characterized in that: have at least one water liquid chamber on the described rubber seal ring (15); Described seal ring fixed base (17) be provided with rubber seal ring (15) on the corresponding pod apertures of water liquid chamber.
5. according to the described agricultural irrigation three-way diverter valve of claim 1, it is characterized in that: described first guide pin bushing (14) is fixed on the interior lower end of baffle plate (19) and second runner (21) threadably.
6. according to the described agricultural irrigation three-way diverter valve of claim 1, it is characterized in that: described second guide pin bushing (16) is fixed on the inner of end cover (18) threadably.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320046607 CN203082264U (en) | 2013-01-29 | 2013-01-29 | Three-way reversing valve for agricultural irrigation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320046607 CN203082264U (en) | 2013-01-29 | 2013-01-29 | Three-way reversing valve for agricultural irrigation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203082264U true CN203082264U (en) | 2013-07-24 |
Family
ID=48828102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320046607 Expired - Fee Related CN203082264U (en) | 2013-01-29 | 2013-01-29 | Three-way reversing valve for agricultural irrigation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203082264U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485374A (en) * | 2015-12-25 | 2016-04-13 | 吴忠仪表有限责任公司 | Novel pneumatic three-way controller |
| CN110017397A (en) * | 2019-05-16 | 2019-07-16 | 大禹节水集团股份有限公司 | Valve actuator is used in a kind of irrigation |
| CN112013152A (en) * | 2020-08-05 | 2020-12-01 | 北京国电龙源环保工程有限公司 | Liquid level control valve, liquid level control system and liquid level control method |
-
2013
- 2013-01-29 CN CN 201320046607 patent/CN203082264U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485374A (en) * | 2015-12-25 | 2016-04-13 | 吴忠仪表有限责任公司 | Novel pneumatic three-way controller |
| CN105485374B (en) * | 2015-12-25 | 2018-05-15 | 吴忠仪表有限责任公司 | Three ventilating controller of novel pneumatic |
| CN110017397A (en) * | 2019-05-16 | 2019-07-16 | 大禹节水集团股份有限公司 | Valve actuator is used in a kind of irrigation |
| CN112013152A (en) * | 2020-08-05 | 2020-12-01 | 北京国电龙源环保工程有限公司 | Liquid level control valve, liquid level control system and liquid level control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130724 Termination date: 20150129 |
|
| EXPY | Termination of patent right or utility model |