CN205383293U - Novel backwash valve unfamiliarly commutates - Google Patents
Novel backwash valve unfamiliarly commutates Download PDFInfo
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- CN205383293U CN205383293U CN201620114677.2U CN201620114677U CN205383293U CN 205383293 U CN205383293 U CN 205383293U CN 201620114677 U CN201620114677 U CN 201620114677U CN 205383293 U CN205383293 U CN 205383293U
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- valve body
- valve
- diaphragm
- main valve
- blowdown
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Abstract
The utility model provides a novel backwash valve unfamiliarly commutates, including the main valve body, locate the internal valve rod with main valve body sliding connections of main valve, be equipped with water inlet, delivery port on the main valve body, it is external that the valve rod both ends lie in the main valve, still includes valve gap, blowdown valve body, the main valve body fixed with valve gap, blowdown body seals respectively, the valve gap be equipped with the unfamiliar chamber mouth of a river, form unfamiliar chamber and be equipped with the diaphragm between the main valve body and the valve gap, diaphragm and valve rod to be located valve gap one end sealed fixed, the blowdown valve body be equipped with the drain, form the tee bend chamber and be equipped with the switching -over board between the main valve body and the blowdown valve body, switching -over board and valve rod to lie in blowdown valve body one end sealed fixed. The utility model discloses degree of automation is high, non -maintaining, small, the low pressure low energy consumption, greatly reduced the possibility of leaking.
Description
Technical field
This utility model relates to agricultural irrigation filter field, particularly relates to a kind of new types of diaphragm commutation backwash valve.
Background technology
Filter for agricultural irrigation uses a period of time that impurity stopping state can occur, it is necessary to be carried out；Having on market and manually folder butterfly valve is added flange installation, it is achieved the filter of manual backwashing function, but its inefficiency, each backwash needs artificial unlatching, and for the filter of source quality difference, flushing frequency is high, and manpower requirements is too high, and intensity is big；The situations such as also having hydro powered and two-position three-way valve on market, but have sealing poor, concentricity is low, and stroke pressure not in place, required is bigger cause that valve seal is not tight, on-the-spot and leak seriously；Being no lack of the situation that there is imported valve, but imported product price height can not large area be popularized, import quality is uneven simultaneously, and after-sales service maintenance cost is oversize with the cycle.
For solving existing valve status, a kind of automaticity is high, non-maintaining, volume is little, the agricultural irrigation filtration backwash barrier film reversal valve of low pressure low energy consumption in project verification research and development.
Summary of the invention
This utility model is to clean inconvenience after solving existing filter for agricultural irrigation generation impurity stopping state, or drive that pressure is high, the valve seal problem such as serious of leaking not tight, on-the-spot, it is provided that a kind of automaticity is high, non-maintaining, volume is little, the agricultural irrigation filtration backwash barrier film reversal valve of low pressure low energy consumption.
In order to solve above-mentioned technical problem, this utility model is achieved by following technical proposals: new types of diaphragm commutation backwash valve, including main valve body, it is located in main valve body and the valve rod of main valve body slidable connection, main valve body is provided with water inlet, outlet, valve rod two ends are positioned at outside main valve body, also include valve gap, blowdown valve body, described main valve body respectively with valve gap, blowdown valve seal is fixed, described valve gap is provided with the diaphragm cavity mouth of a river, form diaphragm cavity between described main valve body and valve gap and be provided with diaphragm, described diaphragm and valve rod are positioned at valve gap one end and seal fixing, described blowdown valve body is provided with sewage draining exit, form three cavities between described main valve body and blowdown valve body and be provided with reversing plate, described reversing plate and valve rod are positioned at blowdown valve body one end and seal fixing.This programme is injected or discharge pressure current toward diaphragm cavity by the diaphragm cavity mouth of a river of valve gap, control diaphragm and produce displacement, the displacement of diaphragm drives valve stem slides, valve rod can control main valve body water inlet at threeway intracavity and connect with outlet or main valve body water inlet connects with blowdown valve body sewage draining exit, can be filtered supplying water under main valve body water inlet and outlet connected state, can carry out rinsing in valve under main valve body water inlet and blowdown valve body sewage draining exit connected state.
As preferably, described diaphragm periphery is fixed between main valve body and valve gap, passes through Boards wall in the middle part of described diaphragm and between valve rod.Stability and the concentricity of diaphragm and valve rod can better be fixed by clamping plate so that it is synchronous interaction displacement.
As preferably, being provided with spring groove in the middle part of described main valve body and valve gap link, described spring groove is positioned at outside valve rod, is provided with back-moving spring in described spring groove, and described back-moving spring one end contacts with clamping plate.Spring groove can ensure that the position of back-moving spring will not offset, it is possible to allows back-moving spring provide constant pressure to diaphragm.
As preferably, described diaphragm is rubber nylon net diaphragm.
Diaphragm is clipped between valve gap and main valve body, injects under band pressure fluid matasomatism at diaphragm cavity, produces displacement, and after discharge pressure fluid, diaphragm can in reinstatement under action of reset spring；Diaphragm material is natural rubber and nylon net cloth composition, and intermediate layer is nylon net cloth, and its both sides are rubber covering, made of soft, it is only necessary to low-pressure just can drive it；Diaphragm can also play the sealing function between valve gap and main valve body.
As preferably, being provided with valve stem sleeve between described main valve body and valve rod, described valve stem sleeve and main valve body are fixed, described valve rod and valve stem sleeve slidable connection, are provided with sealing ring in described valve stem sleeve.Valve stem sleeve is installed on main valve body center, coordinates with the main valve body magnitude of interference, and effect is in that precisely to fix valve rod, and drive fluid sealant panel assembly synchronous interaction, control the accurate opening and closing of water inlet and sewage draining exit, it is prevented that location is inaccurate, make sewage draining exit and valve rod not concentric, poorly sealed, cause leaking.
As preferably, described main valve body, blowdown valve body and three cavity connectivity parts are equipped with guiding steel ring, are sealably coupled inside described reversing plate and guiding steel ring.Reversing plate device, guiding both steel rings combined effect, can control the accuracy of reversing plate device stroke.
As preferably, described blowdown valve body and three cavity connectivity parts are provided with boss, and described guiding steel ring is located on boss.Machining center boss on blowdown valve body, it is ensured that after guiding steel ring assembles with main valve body, with valve rod center at straight line, belongs to the structure of convenient processing in technique.
As preferably, described main valve body and blowdown valve body adopt O to seal.
The beneficial effects of the utility model are: 1) automaticity is high, non-maintaining；2) volume is little；3) low pressure low energy consumption；4) probability of leaking is greatly reduced.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present utility model.
Fig. 2 is filter feeding schematic diagram of the present utility model.
In figure: 1, main valve body 2, valve rod 3, water inlet 4, outlet 5, valve gap
51, the diaphragm cavity mouth of a river 6, blowdown valve body 7, diaphragm cavity 8, diaphragm
9, sewage draining exit 10, three cavity 11, reversing plate 12, clamping plate
13, spring groove 14, back-moving spring 15, valve stem sleeve 16, guiding steel ring
17, boss.
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model is further illustrated.
nullAs shown in Figure 1，New types of diaphragm commutation backwash valve，Including main valve body 1、It is located in main valve body 1 and the valve rod 2 of main valve body 1 slidable connection，Main valve body 1 is provided with water inlet 3、Outlet 4，Valve rod 2 two ends are positioned at outside main valve body 1，Also include valve gap 5、Blowdown valve body 6，Main valve body 1 respectively with valve gap 5、Blowdown valve body 6 seals fixing，Valve gap 5 is provided with the diaphragm cavity mouth of a river 51，Form diaphragm cavity 7 between main valve body 1 and valve gap 5 and be provided with diaphragm 8，Diaphragm 8 and valve rod 2 are positioned at valve gap 5 one end and seal fixing，Blowdown valve body 6 is provided with sewage draining exit 9，Form three cavities 10 between main valve body 1 and blowdown valve body 6 and be provided with reversing plate 11，Reversing plate 11 and valve rod 2 are positioned at blowdown valve body 6 one end and seal fixing，Diaphragm 8 periphery is fixed between main valve body 1 and valve gap 5，Fixed by clamping plate 12 in the middle part of diaphragm 8 and between valve rod 2，It is provided with spring groove 13 in the middle part of main valve body 1 and valve gap 5 link，Spring groove 13 is positioned at outside valve rod 2，Back-moving spring 14 it is provided with in spring groove 13，Back-moving spring 14 one end contacts with clamping plate 12，Diaphragm 8 is rubber nylon net diaphragm，Valve stem sleeve 15 it is provided with between main valve body 1 and valve rod 2，Valve stem sleeve 15 is fixed with main valve body 1，Valve rod 2 and valve stem sleeve 15 slidable connection，It is provided with sealing ring in valve stem sleeve 15，Main valve body 1、Blowdown valve body 6 and three cavity 10 connectivity parts are equipped with guiding steel ring 16，It is sealably coupled inside reversing plate 11 and guiding steel ring 16，Blowdown valve body 6 and three cavity 10 connectivity parts are provided with boss 17，Guiding steel ring 16 is located on boss 17，Main valve body 1 and blowdown valve body 6 adopt O to seal.
Specific implementation process is, as shown in Figure 2, under filter feeding state, band press water is injected in diaphragm cavity 7 between diaphragm 8 and the diaphragm cavity mouth of a river 51, diaphragm 8 pressure water pressure is more than suffered back-moving spring 14 pressure, diaphragm 8 produces displacement to back-moving spring 14 direction, valve rod 2 moves to blowdown valve body 6 sewage draining exit 9 direction under the drive of diaphragm 8, till clamping plate 12 contact with main valve body 1, now the reversing plate 11 of valve rod 2 other end enters in the guiding steel ring 16 of blowdown valve body 6 and blocks the passage between three cavities 10 and sewage draining exit 9, water can enter from main valve body 1 water inlet 3, flow out from main valve body 1 outlet 4, complete filter feeding；
As shown in Figure 1, in valve under cleaning state, band press water is discharged in diaphragm cavity 7 between diaphragm 8 and the diaphragm cavity mouth of a river 51, diaphragm 8 pressure water pressure is less than suffered back-moving spring 14 pressure, diaphragm 8 is produced displacement by direction, the back-moving spring 14 band trend diaphragm cavity mouth of a river 51, valve rod 2 also moves to direction, the diaphragm cavity mouth of a river 51 under the drive of diaphragm 8, till clamping plate 12 contact with valve gap 5, now the reversing plate 11 of valve rod 2 other end enters in the guiding steel ring 16 of main valve body 1 and blocks the passage between three cavities 10 and outlet 4, water can enter from main valve body 1 water inlet 3, flow out from blowdown valve body 6 sewage draining exit 9, realize cleaning in valve.
Claims (8)
1. a new types of diaphragm commutation backwash valve, including main valve body, it is located in main valve body and the valve rod of main valve body slidable connection, main valve body is provided with water inlet, outlet, valve rod two ends are positioned at outside main valve body, it is characterized in that: also include valve gap, blowdown valve body, described main valve body respectively with valve gap, blowdown valve seal is fixed, described valve gap is provided with the diaphragm cavity mouth of a river, form diaphragm cavity between described main valve body and valve gap and be provided with diaphragm, described diaphragm and valve rod are positioned at valve gap one end and seal fixing, described blowdown valve body is provided with sewage draining exit, form three cavities between described main valve body and blowdown valve body and be provided with reversing plate, described reversing plate and valve rod are positioned at blowdown valve body one end and seal fixing.
2. new types of diaphragm according to claim 1 commutation backwash valve, is characterized in that: described diaphragm periphery is fixed between main valve body and valve gap, passes through Boards wall in the middle part of described diaphragm and between valve rod.
3. new types of diaphragm according to claim 1 and 2 commutation backwash valve, it is characterized in that: in the middle part of described main valve body and valve gap link, be provided with spring groove, described spring groove is positioned at outside valve rod, is provided with back-moving spring in described spring groove, and described back-moving spring one end contacts with clamping plate.
4. new types of diaphragm according to claim 1 and 2 commutation backwash valve, is characterized in that: described diaphragm is rubber nylon net diaphragm.
5. new types of diaphragm according to claim 1 commutation backwash valve, it is characterized in that: between described main valve body and valve rod, be provided with valve stem sleeve, described valve stem sleeve and main valve body are fixed, described valve rod and valve stem sleeve slidable connection, are provided with sealing ring in described valve stem sleeve.
6. new types of diaphragm according to claim 1 commutation backwash valve, is characterized in that: described main valve body, blowdown valve body and three cavity connectivity parts are equipped with guiding steel ring, are sealably coupled inside described reversing plate and the steel ring that leads.
7. new types of diaphragm according to claim 6 commutation backwash valve, is characterized in that: described blowdown valve body and three cavity connectivity parts are provided with boss, and described guiding steel ring is located on boss.
8. new types of diaphragm according to claim 1 commutation backwash valve, is characterized in that: described main valve body and blowdown valve body adopt O to seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620114677.2U CN205383293U (en) | 2016-01-29 | 2016-01-29 | Novel backwash valve unfamiliarly commutates |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620114677.2U CN205383293U (en) | 2016-01-29 | 2016-01-29 | Novel backwash valve unfamiliarly commutates |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205383293U true CN205383293U (en) | 2016-07-13 |
Family
ID=56349640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620114677.2U Expired - Fee Related CN205383293U (en) | 2016-01-29 | 2016-01-29 | Novel backwash valve unfamiliarly commutates |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205383293U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110594470A (en) * | 2019-10-08 | 2019-12-20 | 南京铁道职业技术学院 | Multipurpose compressed air pipeline joint valve |
| CN112145741A (en) * | 2020-10-21 | 2020-12-29 | 河南科技大学 | Back flush valve |
| CN113339546A (en) * | 2021-05-27 | 2021-09-03 | 苏州艾尔泰流体控制有限公司 | Two-position three-way valve |
-
2016
- 2016-01-29 CN CN201620114677.2U patent/CN205383293U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110594470A (en) * | 2019-10-08 | 2019-12-20 | 南京铁道职业技术学院 | Multipurpose compressed air pipeline joint valve |
| CN112145741A (en) * | 2020-10-21 | 2020-12-29 | 河南科技大学 | Back flush valve |
| CN113339546A (en) * | 2021-05-27 | 2021-09-03 | 苏州艾尔泰流体控制有限公司 | Two-position three-way valve |
| CN113339546B (en) * | 2021-05-27 | 2023-02-24 | 苏州艾尔泰流体控制有限公司 | Two-position three-way valve |
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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: 20160713 Termination date: 20180129 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |