CN201149098Y - Improved low-pressure pipeline hydrant - Google Patents
Improved low-pressure pipeline hydrant Download PDFInfo
- Publication number
- CN201149098Y CN201149098Y CNU2007201831722U CN200720183172U CN201149098Y CN 201149098 Y CN201149098 Y CN 201149098Y CN U2007201831722 U CNU2007201831722 U CN U2007201831722U CN 200720183172 U CN200720183172 U CN 200720183172U CN 201149098 Y CN201149098 Y CN 201149098Y
- Authority
- CN
- China
- Prior art keywords
- key
- water
- hydrant
- pressure pipeline
- low pressure
- 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 - Fee Related
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 48
- 238000007789 sealing Methods 0.000 claims abstract description 34
- 229920006351 engineering plastic Polymers 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 2
- 230000002262 irrigation Effects 0.000 abstract description 6
- 238000003973 irrigation Methods 0.000 abstract description 6
- 238000012423 maintenance Methods 0.000 abstract description 3
- 210000000476 body water Anatomy 0.000 abstract 1
- 238000009434 installation Methods 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
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Abstract
The utility model belongs to farmland water-saving irrigation low pressure pipeline hydrant, especially modified low pressure pipeline hydrant, be provided with the bolt body of water inlet including the bottom, the equipartition is setting up the delivery port on the bolt body wall, the screw rod of installing through connecting thread in bolt body top cap centre bore, the annular groove that its lower extreme set up cooperatees with the fixing stud of stagnant water disk column hole wall mounting, set up flange on the terminal surface that has the water inlet in bolt body lower part, the flange of bolt body is connected with the flange of water supply pipe through the bolt, the annular stagnant water boss that sets up on stagnant water disk upper portion installation's stagnant water rubber ring and bolt body water inlet inner wall cooperatees. The utility model discloses rational in infrastructure, sealing performance is good, long service life, and easily maintenance is changed spare part convenience moreover.
Description
Technical field
The utility model belongs to farmland water-saving and irrigates low pressure pipeline hydrant, particularly improved low pressure pipeline hydrant.
Background technique
Extensively promoting water-saving irrigation at present, to the field water delivery, the valve that big flow is installed on low pressure pipeline carries out water distribution to water-saving irrigation system by low pressure pipeline.The special-purpose hydrant of a kind of low-pressure pipe irrigation is arranged at present, its structure is the screw rod of installing by screw thread in key loam cake center hole, the articulated sealing dish in its lower end, the sealing seat that is provided with on the water stop gel ring of installing on the sealing dish and key water intake bottom key inwall matches.When the water delivery of field, rotating screw bolt is upwards mentioned compound sealing dish, makes the current that enter in the key from water intake enter the field from the water outlet of key.Its deficiency is that the sealing dish is stressed bigger, and the sealing pressure of this hydrant equals screw rod the pressure of sealing dish is deducted water pressure, so sealing pressure will overcome the water pressure in the pipeline.During irrigation, the pressure in the pipeline changes at any time, and when water pressure increased gradually, temporary transient idle hydrant sealing dish was stressed bigger, can not guarantee to seal fully, and water leakage phenomenon is arranged.Screw rod is stressed bigger, damages easily.In addition, this hydrant maintenance, renewal part inconvenience.
Summary of the invention
The purpose of this utility model is to provide a kind of improved low pressure pipeline hydrant, and it is rational in infrastructure, good seal performance, and long service life, and for ease of maintenaince, change component.
The utility model is achieved in that a kind of improved low pressure pipeline hydrant, comprise that the bottom is provided with the key of water intake, the uniform water outlet that is being provided with on the key wall, the screw rod of in the key top cap central bore, installing by connecting thread, the fixed bolt of installing on the annular groove that its lower end is provided with and the sealing dish post hole wall matches, have in the key bottom on the end face of water intake adpting flange is being set, the adpting flange of key is connected with the flange of water supply line by bolt, and the annular sealing boss that is provided with on the water stop gel ring of installing on sealing dish top and the key water intake inwall matches.
The adpting flange of the utility model bottom is connected with the adpting flange of water supply line by screw thread.When opening the utility model hydrant, rotate screw rod, promote the motion down mutually of sealing dish, the sealing dish leaves annular sealing boss, and the water intake of key is opened, and current enter key, flow out from the osculum between key inwall and the sealing dish.When closing the utility model hydrant, the counter-rotating screw rod is mentioned the sealing dish, and the water stop gel ring of installing on the sealing dish is pressed on the annular sealing boss, and this moment, the water intake of key sealed.The pulling force that the sealing pressure of the utility model hydrant equals to carry on the screw rod sealing dish sealing key water intake adds the pressure of water.No matter be to close or when opening hydrant, stressed all stressed much smaller on the screw rod than existing hydrant screw rod, bolt and sealing dish are not fragile.During irrigation, during the variation in pressure of the interior water of pipeline, do not influence the sealing of sealing dish and key water intake.The adpting flange of the utility model key is connected with the flange of water supply line by bolt, makes the component of maintenance and replacing hydrant all very convenient.The utility model is rational in infrastructure, good seal performance, and long service life, and also for ease of maintenaince, it is convenient to change component.
The utility model is described in further detail below in conjunction with accompanying drawing.
Accompanying drawing sectional structure schematic representation of the present utility model.
Embodiment
A kind of improved low pressure pipeline hydrant, as shown in drawings, comprise that the bottom is provided with the key 3 of water intake 11, the uniform water outlet 4 that is being provided with on key 3 walls, the quantity of water outlet 4 is 2-4, current freely flow out by water outlet 4, the screw rod of in key 3 top cap central bore, installing 1 by connecting thread, the fixed bolt of installing on the annular groove that its lower end is provided with and the sealing dish 6 post hole walls 5 matches, connecting thread is fixed a metal internal thread pipe 2 in key 3 top cap central bore, have in key 3 bottoms on the end face of water intake 11 adpting flange 10 is being set, the adpting flange 10 of key 3 is connected by the flange of bolt 9 with water supply line 12, and the annular sealing boss 8 that is provided with on the water stop gel ring of installing on sealing dish 6 tops 7 and key water intake 11 inwalls matches.The housing of key 3 is made of the ABS engineering plastics, and sealing dish 6 is made of the ABS engineering plastics.
Claims (5)
1, a kind of improved low pressure pipeline hydrant, comprise that the bottom is provided with the key (3) of water intake (11), the uniform water outlet (4) that is being provided with on key (3) wall, the screw rod of in key (3) top cap central bore, installing (1) by connecting thread, the fixed bolt of installing on the annular groove that its lower end is provided with and sealing dish (6) the post hole wall (5) matches, it is characterized in that: have in key (3) bottom on the end face of water intake (11) adpting flange (10) is being set, the adpting flange (10) of key (3) is connected by the flange of bolt (9) with water supply line (12), and the annular sealing boss (8) that is provided with on the water stop gel ring of installing on sealing dish (6) top (7) and key water intake (11) inwall matches.
2, improved low pressure pipeline hydrant according to claim 1 is characterized in that: the quantity of water outlet (4) is 2-4.
3, improved low pressure pipeline hydrant according to claim 1 is characterized in that: connecting thread is fixed metal internal thread pipe (2) in key (3) top cap central bore.
4, improved low pressure pipeline hydrant according to claim 1, it is characterized in that: the housing of key (3) is made of the ABS engineering plastics.
5, improved low pressure pipeline hydrant according to claim 1, it is characterized in that: sealing dish (6) is made of the ABS engineering plastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201831722U CN201149098Y (en) | 2007-11-30 | 2007-11-30 | Improved low-pressure pipeline hydrant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201831722U CN201149098Y (en) | 2007-11-30 | 2007-11-30 | Improved low-pressure pipeline hydrant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201149098Y true CN201149098Y (en) | 2008-11-12 |
Family
ID=40116866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201831722U Expired - Fee Related CN201149098Y (en) | 2007-11-30 | 2007-11-30 | Improved low-pressure pipeline hydrant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201149098Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103669305A (en) * | 2013-12-11 | 2014-03-26 | 扬州大学 | Scour prevention quantitative water intake for rotary cover of farmland low-pressure water delivery pipeline |
| CN110159768A (en) * | 2019-06-19 | 2019-08-23 | 黑龙江省水利科学研究院 | A kind of reverse-flow axial energy dissipating valve |
-
2007
- 2007-11-30 CN CNU2007201831722U patent/CN201149098Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103669305A (en) * | 2013-12-11 | 2014-03-26 | 扬州大学 | Scour prevention quantitative water intake for rotary cover of farmland low-pressure water delivery pipeline |
| CN110159768A (en) * | 2019-06-19 | 2019-08-23 | 黑龙江省水利科学研究院 | A kind of reverse-flow axial energy dissipating valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081112 Termination date: 20091230 |