CN202252597U - Underground negative pressure-preventing breather valve - Google Patents
Underground negative pressure-preventing breather valve Download PDFInfo
- Publication number
- CN202252597U CN202252597U CN2011203699217U CN201120369921U CN202252597U CN 202252597 U CN202252597 U CN 202252597U CN 2011203699217 U CN2011203699217 U CN 2011203699217U CN 201120369921 U CN201120369921 U CN 201120369921U CN 202252597 U CN202252597 U CN 202252597U
- Authority
- CN
- China
- Prior art keywords
- negative pressure
- breather valve
- piston
- underground
- utility
- 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.)
- Expired - Lifetime
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Abstract
The utility model relates to an underground negative pressure-preventing breather valve. The breather valve comprises an air duct communicated with a main pipeline, the breather valve is characterized in that the middle of the air duct is provided with an expanding cavity body, and the upper end of the air duct is provided with an air hole; and a cone-shaped piston is arranged in the cavity body, the inner wall of the cavity body is provided with four spacing pieces, and the four spacing pieces are arranged below the bottom of the piston. The breather valve provided by the utility model has the advantages of simple structure, cheap cost, and can effectively solve the problem that pipeline sucks clay at negative pressure, thereby remitting phenomenon of blocking the dripper by clay.
Description
Technical field
The utility model relates to underground micro irrigation technology, relates in particular to underground anti-negative pressure ventilation valve.
Background technique
Micro irrigation technology is applied for many years, still occupies an leading position and in agriculture slight irrigation, irrigate on the ground, and it is relatively poor that underground slight irrigation water saving efficiency is compared in slight irrigation on the ground, therefore, wants to reach maximum water saving efficiency, and underground slight irrigation is undoubtedly optimal selection.There is the serious blockage problem of water dropper in the underground drip irrigation at present, causes underground slight irrigation not apply.Cause the water dropper plugging reason to have two, the one, pipe negative pressure sucks earth, and the 2nd, root system of plant creeps into water dropper.Suck the earth problem and solve pipe negative pressure, start with from solving anti-two aspects of stopping up of pipe negative pressure and water dropper.
The model utility content
The utility model technical problem to be solved provides a kind of underground anti-negative pressure ventilation valve that can solve pipe negative pressure suction earth problem.
For addressing the above problem, the described underground anti-negative pressure ventilation valve of the utility model comprises the breather line that communicates with main pipe, it is characterized in that: the middle part of said breather line is provided with expands cavity, and its upper end is provided with vent; Be provided with the piston that is cone shape in the said cavity, its inwall is provided with 4 banking stops; Said piston base below is provided with said 4 banking stops.
Said 4 banking stops are " ten " type and arrange.
The utility model compared with prior art has the following advantages:
1, owing to be provided with the piston that is cone shape in the utility model and be the banking stop that " ten " type is arranged, therefore, can effectively solve pipe negative pressure and suck the earth problem, thereby alleviate earth blocking dropping head phenomenon.
2, the utility model is simple in structure, with low cost.
Description of drawings
Below in conjunction with accompanying drawing the embodiment of the utility model is done further detailed explanation.
Fig. 1 is the structural representation of the utility model.
Among the figure: 1-pipeline 2-breather line 3-piston 4-cavity 5-banking stop 6-vent.
Embodiment
As shown in Figure 1, underground anti-negative pressure ventilation valve comprises the breather line 2 that communicates with main pipe 1.The middle part of breather line 2 is provided with expands cavity 4, and its upper end is provided with vent 6; Be provided with the piston 3 that is cone shape in the cavity 4, its inwall is provided with 4 banking stops 5; Below, piston 3 bottoms is provided with 4 banking stops 5.4 banking stops 5 are " ten " type and arrange.
During use, pour water flow to cavity 4 after, piston 3 stops up breather line 2 under the effect of impact of water; Guarantee that breather line 2 does not sluice, after slight irrigation stops, producing negative pressure in the main pipe 1; Piston 3 in the cavity 4 withdraws from and rests on banking stop 4 places; Breather line 2 is opened, and ambient air gets into main pipe 1, keeps the normal barometric pressure in the pipeline.
Claims (2)
1. underground anti-negative pressure ventilation valve comprises the breather line (2) that communicates with main pipe (1), it is characterized in that: the middle part of said breather line (2) is provided with expands cavity (4), and its upper end is provided with vent (6); Be provided with the piston (3) that is cone shape in the said cavity (4), its inwall is provided with 4 banking stops (5); Below, said piston (3) bottom is provided with said 4 banking stops (5).
2. underground anti-negative pressure ventilation valve as claimed in claim 1 is characterized in that: said 4 banking stops (5) are " ten " type and arrange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203699217U CN202252597U (en) | 2011-09-28 | 2011-09-28 | Underground negative pressure-preventing breather valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203699217U CN202252597U (en) | 2011-09-28 | 2011-09-28 | Underground negative pressure-preventing breather valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202252597U true CN202252597U (en) | 2012-05-30 |
Family
ID=46113839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203699217U Expired - Lifetime CN202252597U (en) | 2011-09-28 | 2011-09-28 | Underground negative pressure-preventing breather valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202252597U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105546130A (en) * | 2016-02-26 | 2016-05-04 | 山东省水利科学研究院 | Automatic control valve, indoor negative pressure relief device and reservoir drainage tunnel management room |
| CN108518549A (en) * | 2018-06-15 | 2018-09-11 | 江苏宝地管业有限公司 | A kind of relief pipeline |
| CN109418134A (en) * | 2017-09-05 | 2019-03-05 | 王振牛 | A kind of method of the anti-inside and outside anti-mud back suction of blocking of drip irrigation below the surface system |
-
2011
- 2011-09-28 CN CN2011203699217U patent/CN202252597U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105546130A (en) * | 2016-02-26 | 2016-05-04 | 山东省水利科学研究院 | Automatic control valve, indoor negative pressure relief device and reservoir drainage tunnel management room |
| CN105546130B (en) * | 2016-02-26 | 2017-09-15 | 山东省水利科学研究院 | Indoor negative pressure alleviates device and Water reservoir water draining hole management house |
| CN109418134A (en) * | 2017-09-05 | 2019-03-05 | 王振牛 | A kind of method of the anti-inside and outside anti-mud back suction of blocking of drip irrigation below the surface system |
| CN108518549A (en) * | 2018-06-15 | 2018-09-11 | 江苏宝地管业有限公司 | A kind of relief pipeline |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120530 |