CN103672040A - Back flush valve - Google Patents
Back flush valve Download PDFInfo
- Publication number
- CN103672040A CN103672040A CN201310660471.0A CN201310660471A CN103672040A CN 103672040 A CN103672040 A CN 103672040A CN 201310660471 A CN201310660471 A CN 201310660471A CN 103672040 A CN103672040 A CN 103672040A
- Authority
- CN
- China
- Prior art keywords
- pipe
- back flush
- recoil
- piston
- recoil tube
- 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
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Classifications
-
- 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
- F16K11/14—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 one actuating member, e.g. a handle
Abstract
The invention discloses a back flush valve which comprises a water inlet pipe, a back flush pipe, a sewage pipe and a water outlet pipe. The sewage pipe and a filter screen are sequentially arranged in the water inlet pipe. A spherical vale element is arranged at the intersection of the water inlet pipe and the sewage pipe. A butterfly valve element is arranged at the water inlet end of the back flush pipe. The spherical vale element and the butterfly valve element are in linkage through an operating lever. A piston is arranged in the back flush pipe and connected into the back flush pipe through a spring. A back flush port and a water outlet are formed between the back flush pipe and the water inlet pipe. The back flush port and the water outlet are controlled by the piston in an alternate blocking mode. The back flush valve has the advantages that operation is simple, and the service life of the back flush valve is well guaranteed.
Description
Technical field
The present invention relates to the valve that a kind of agricultural irrigation is used, specifically in a kind of water system, contain filter and use valve.
Background technique
The filter that agricultural water-saving irrigation is used, the filter screen of work a period of time after-filter is stopped up by the impurity in water, needs reverse water filling to carry out backwash to the filter screen of filter.For the manual back flush device of irrigation filter, with two valves, control a backwash valve action at present.Its structure is on the three-way interface of valvular main pipeline, to connect backwash pipeline, mounted valve on backwash pipeline filling; When backwash is worked, need close the valve on main pipeline, open the valve on backwash pipeline.Its deficiency is troublesome poeration, and cost is higher, need to control backwash working procedure with three valves.
Summary of the invention
The problem to be solved in the present invention is that a kind of easily manufactured, simple to operate back flush valves is provided.
For addressing the above problem, technological scheme proposed by the invention is: a kind of back flush valves, comprise intake pipe, recoil tube, sewage pipe and outlet pipe, in described intake pipe, be disposed with sewage pipe, filter screen, intake pipe and sewage pipe intersection are provided with ball-type spool, the feed-water end of recoil tube is provided with butterfly valve core, described spherical valve core and butterfly valve core link by operating handle, in described recoil tube, be provided with piston, this piston is connected in recoil tube by spring, between described recoil tube and intake pipe, be provided with recoil mouth and water outlet, described recoil mouth and water outlet are alternately stopped up and control by piston.
The working principle of this back flush valves is: at normal water supply state, rotate operating handle, recoil tube is closed by butterfly valve core, and sewage pipe is closed by spherical valve core, and intake pipe is opened by spherical valve core simultaneously; Now the piston in recoil tube, under spring action, stops up recoil mouthful, is opened to the mouth of a river, and current enter outlet pipe after net filtration after filtration; When filter screen is cleaned in needs recoil, only need rotary manipulation bar, due to interlock effect, the butterfly valve core in recoil tube is opened, and the spherical valve core in intake pipe rotates closes water intake, open sewage pipe, now water impact piston, makes piston stop up water outlet under the promotion of current, opens anxious mouthful of recoil, current back flush filter screen, sewage is discharged from sewage pipe simultaneously.
Use the invention has the advantages that: owing to just just can complete recoiling and the function of irrigation with an operating handle, make backwash valve simple to operate, filter screen easy to clean.
Further, because spring piston being connected in recoil tube can be in the backwash stage always in soaking, in order to improve the working life of piston, described spring is outside equipped with plastic layer.
Finally, in order to facilitate back flush valves to be connected with external water pipe, described intake pipe and recoil tube arrange a flange plate jointly, and outlet pipe is also provided with flange plate.
Accompanying drawing explanation
Fig. 1: be the structural representation of embodiment of the present invention back flush valves.
Embodiment
Back flush valves as shown in Figure 1, comprise intake pipe 2, recoil tube 1, sewage pipe 8 and outlet pipe 3, in intake pipe 2, be disposed with sewage pipe 8, filter screen 10, the feed-water end that intake pipe 2 and sewage pipe 8 intersections are provided with ball-type spool 6, recoil tube 1 is provided with butterfly valve core 5, spherical valve core 6 and butterfly valve core 5 link by operating handle 4, in recoil tube 1, be provided with piston 7, this piston 7 is connected in recoil tube 1 by spring 9, between recoil tube 1 and intake pipe 2, be provided with recoil mouth 11 and water outlet 12, recoil mouth 11 and water outlet 12 alternately stop up control by piston 7.
At normal water supply state, rotate operating handle 4, recoil tube 1 is by butterfly valve core 5 closures, and sewage pipe 8 is closed by spherical valve core 6, and intake pipe 2 is opened by spherical valve core 6 simultaneously; Now the piston 7 in recoil tube 1, under spring 9 effects, stops up recoil mouth 11, is opened to the mouth of a river 12, and current can enter outlet pipe 3 after filter screen 10 filters; When filter screen is cleaned in needs recoil, only need rotary manipulation bar 4, due to interlock effect, the butterfly valve core 5 in recoil tube 1 is opened, and the spherical valve core 6 in intake pipe 2 rotates closes water intake, open sewage pipe 8, now water impact piston 7, make piston 7 under the promotion of current, stop up water outlet 12, open recoil mouth 11, current back flush filter screen 10, sewage is discharged from sewage pipe 8 simultaneously.
Only with an operating handle 4, just can complete recoil and the function of irrigation, make backwash valve simple to operate, filter screen 10 easy to cleans.Because the spring 9 piston 7 being connected in recoil tube 1 can be in the backwash stage always in soaking, in order to improve the working life of piston 7, spring 9 is outside equipped with plastic layer.Intake pipe 2 and recoil tube 1 arrange a flange plate jointly, and outlet pipe 3 is also provided with flange plate; Facilitated back flush valves to be connected with external water pipe.
Claims (3)
1. a back flush valves, comprise intake pipe, recoil tube, sewage pipe and outlet pipe, in described intake pipe, be disposed with sewage pipe, filter screen, it is characterized in that: the feed-water end that intake pipe and sewage pipe intersection are provided with ball-type spool, recoil tube is provided with butterfly valve core, described spherical valve core and butterfly valve core link by operating handle, in described recoil tube, be provided with piston, this piston is connected in recoil tube by spring, between described recoil tube and intake pipe, be provided with recoil mouth and water outlet, described recoil mouth and water outlet are alternately stopped up and control by piston.
2. back flush valves according to claim 1, is characterized in that: described spring is outside equipped with plastic layer.
3. back flush valves according to claim 2, is characterized in that: described intake pipe and recoil tube arrange a flange plate jointly, and outlet pipe is also provided with flange plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310660471.0A CN103672040A (en) | 2013-12-10 | 2013-12-10 | Back flush valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310660471.0A CN103672040A (en) | 2013-12-10 | 2013-12-10 | Back flush valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103672040A true CN103672040A (en) | 2014-03-26 |
Family
ID=50310445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310660471.0A Pending CN103672040A (en) | 2013-12-10 | 2013-12-10 | Back flush valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103672040A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110508175A (en) * | 2019-09-16 | 2019-11-29 | 曹立伟 | A kind of paper pulp agitating device that paper grade (stock) is convenient to clean |
| CN111453866A (en) * | 2020-04-13 | 2020-07-28 | 陈鑫宇 | High-efficient water treatment facilities with charge device |
-
2013
- 2013-12-10 CN CN201310660471.0A patent/CN103672040A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110508175A (en) * | 2019-09-16 | 2019-11-29 | 曹立伟 | A kind of paper pulp agitating device that paper grade (stock) is convenient to clean |
| CN111453866A (en) * | 2020-04-13 | 2020-07-28 | 陈鑫宇 | High-efficient water treatment facilities with charge device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140326 |
|
| WD01 | Invention patent application deemed withdrawn after publication |