CN201746827U - Farmland drainage ditch triangle water stop layered control weir - Google Patents
Farmland drainage ditch triangle water stop layered control weir Download PDFInfo
- Publication number
- CN201746827U CN201746827U CN2010202574544U CN201020257454U CN201746827U CN 201746827 U CN201746827 U CN 201746827U CN 2010202574544 U CN2010202574544 U CN 2010202574544U CN 201020257454 U CN201020257454 U CN 201020257454U CN 201746827 U CN201746827 U CN 201746827U
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- weir
- water
- farmland
- triangle
- weir plate
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Abstract
The utility model relates to a farmland drainage ditch triangle water stop layered control weir. Each weir board has the same height. According to the growth period characteristics of crops, the drainage ditch outlet control weirs with different heights are formed by combining the weir boards in order to meet the requirements of the drainage control of the crops within various growth periods after fertilization. The bottom of each weir board is provided with a triangle rubber water stop which can extrude sediment impurities on the upper edge of the following weir board and is completely and seamlessly connected with the upper edge of the following weir board for stopping water. The two sides of a drainage ditch are respectively provided with a doorframe groove, the two internal sides of which are provided with the rubber water stops. The weir board can be placed in or taken out of the doorframe groove in a sliding manner and water does not leak. The combination height of the weir boards does not cause crop waterlogging and can retain nitrogen, phosphor and other nutrients in a farmland as much as possible and reduce the pollution of the high concentration nitrogen and phosphor in drainage water on downstream water. The utility model has the advantages of saving irrigation water, improving underground water resource utilization ratio, reducing agricultural nonpoint source pollution output and has good weir board water stop effect.
Description
Technical field
The utility model relates to a kind of agricultural drain ditch triangle sealing layering control weir that is installed in agricultural drain ditch exit, belongs to the Agricultural Water-Soil Engineering technical field.
Background technology
At the vast humid region of China, groundwater level depth is more shallow, and by regulation and control farmland groundwater table, utilize phreatic capillary to rise replenishing top layer soil moisture is the important channel of improving water utilization rate.Surpass season of farmland tatol evapotranspiration at amount of precipitation, groundwater table rises, and for satisfying the demand of plant growth and farmland seepage, should take measures to reduce the groundwater table in farmland.And surpassing season of amount of precipitation at the farmland tatol evapotranspiration, topsoil moisture produces and wanes, and needs on the one hand to replenish farmland moisture by irrigating; Can raise the groundwater table in farmland on the other hand, replenish crop root layer soil moisture, save irrigation water capacity by the soil capillary water effect of increasing.In addition, nitrogen, phosphorus concentration rise rapidly in the agricultural drain after using chemical fertilizer, be to reduce farmland nutrient and run off, and not draining as far as possible in the fortnight of fertilising back reduces the pollution to the downstream water body of nitrogen in the draining, phosphorus.Except considering to improve farmland water, the fertile utilization rate, crop needs different groundwater table and seepage intensity at each growth phase, so groundwater table control also needs to do to adjust according to the different growth phases of crop in good time.
The gutter drainage mode is adopted in the farmland in China overwhelming majority area, by gutter system regulation and control farmland groundwater table.In gutter outlet the control weir is installed,, utilizes the drop that forms between water level and the farmland groundwater table in the gutter then, regulate and control farmland groundwater table lifting to realize the gutter water level lifting by raising or reducing the weir crest height and regulate and control the gutter water level lifting.Traditional gutter water level control is to realize by the gate in exit, gutter or control weir, because being bottom outlet, gate goes out stream, end user's industry control check door is difficult to realize that the water level in gutter maintains a certain certain height, then cost and expense are too high by computer controlled automatic, are difficult to bear.Though the control weir of level altitude at home and abroad has a wide range of applications, it can only keep fixing water level in the gutter, can't satisfy the needs of the different growth phases of crop to underground water level, and the control drainage requirement after the fertilising.
Summary of the invention
The purpose of this utility model is to propose a kind of agricultural drain triangle sealing layering control weir that is installed in the exit, gutter at the defective of lock, weir existence.
Technical solution of the present utility model: a kind of agricultural drain ditch triangle sealing layering control weir, it comprises two doorframes and is located at 1～10 weir plate between two doorframes, the height of described weir plate is 14.5cm, be equipped with groove on relative two sides on described two doorframes, the two ends of described weir plate are located at respectively in the doorframe groove of both sides, and weir plate all can move up and down in the doorframe groove of both sides.
Further technical scheme: the lower edge of described weir plate all is fixedly connected with the high triangle rubber fastening band of 0.5cm;
Space between described doorframe groove and the weir plate is provided with rubber fastening band.
Advantage of the present utility model: the one, according to the characteristics of each growth phase of crop, design every weir plate equal height, pick and place weir plate, form different weir crest height by combination, water level in the control agricultural drain ditch, thereby the purpose of the groundwater table of each growth phase of realization regulation and control farmland.The 2nd, the triangle rubber fastening band of each weir plate lower edge has been realized the sealing between weir plate, consider foreign material such as having silt in the draining, weir plate lower edge, top is fixed with the triangle rubber fastening band, can push out weir plate upper edge, below silt foreign material, and stagnant water effect is good between weir plate.Use the utility model can save irrigation water capacity, make full use of groundwater resources, under the prerequisite that does not influence plant growth, keep the higher relatively groundwater table in farmland, reduce the number of dropouts of displacement and chemical fertilizer, reduce the farmland pollution of area source.Control weir compact conformation, easy for installation, do not need power, manually-operated is simple, and mature production technology is cheap, and middle-size and small-size machine making factory can produce, and applies towards the moist area of southern China that China is vast.Applying of this utility model not only can produce good economic benefits, also will produce tangible environmental benefit.
Description of drawings
Accompanying drawing 1 is an agricultural drain ditch triangle sealing layering control weir front schematic view.
Accompanying drawing 2 is agricultural drain ditch triangle sealing layering control weir vertical views.
Among the figure: the 1st, weir plate, the 2nd, rubber fastening band, the 3rd, triangle rubber fastening band, the 4th, doorframe.
The specific embodiment
Embodiment 1
The contrast accompanying drawing, it comprises agricultural drain ditch water level layering control weir two doorframes 4 and is located at 1～10 weir plate between two doorframes 4, the height that designs every weir plate is 14.5cm, two doorframes 4 lay respectively at the both sides, gutter, on two the relative sides on two doorframes 4, be equipped with groove, the two ends of weir plate 1 are located at respectively in doorframe 4 grooves of both sides, and weir plate 1 all can move up and down in both sides doorframe 4 grooves, space between doorframe 4 grooves and the weir plate 1 is provided with rubber fastening band 2, and weir plate can slide water-tight when taking out or putting in doorframe 4 grooves; The lower edge of every weir plate 1 all is fixedly connected with the high triangle rubber fastening band 3 of 0.5cm, the triangle rubber fastening band of weir plate lower edge, top can push out weir plate upper edge, below silt foreign material, with the comprehensive seamless connection sealing in weir plate upper edge, below, the triangle rubber fastening band can effectively prevent to leak between the weir plate.
Because the groundwater table difference that each growth phase of crop is suitable, according to the characteristics after each growth phase of crop and the fertilising, be combined to form agricultural drain ditch water level layering control weir by weir plate, thereby regulation and control gutter middle water level, the suitable farmland groundwater table after formation each growth phase of crop and the fertilising.
Claims (3)
1. agricultural drain ditch triangle sealing layering control weir, it is characterized in that: it comprises two doorframes (4) and is located at 1～10 weir plate (1) between two doorframes (4), the height of described weir plate (1) is 14.5cm, described two doorframes (4) are gone up on two relative sides and are equipped with groove, the two ends of described weir plate (1) are located at respectively in doorframe (4) groove of both sides, and weir plate (1) all can move up and down in both sides doorframe (4) groove.
2. agricultural drain ditch triangle sealing layering control weir according to claim 1 is characterized in that: the lower edge of described weir plate (1) all is fixedly connected with the high triangle rubber fastening band (3) of 0.5cm.
3. agricultural drain ditch triangle sealing layering control weir according to claim 1 is characterized in that: in the groove of described doorframe and the gap between the weir plate (1) is provided with rubber fastening band (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202574544U CN201746827U (en) | 2010-07-13 | 2010-07-13 | Farmland drainage ditch triangle water stop layered control weir |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202574544U CN201746827U (en) | 2010-07-13 | 2010-07-13 | Farmland drainage ditch triangle water stop layered control weir |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201746827U true CN201746827U (en) | 2011-02-16 |
Family
ID=43581507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202574544U Expired - Fee Related CN201746827U (en) | 2010-07-13 | 2010-07-13 | Farmland drainage ditch triangle water stop layered control weir |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201746827U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103348899A (en) * | 2013-08-02 | 2013-10-16 | 王卓民 | Prefabricated irrigation water intake and drainage control device for a paddy field |
| CN105648975A (en) * | 2015-12-30 | 2016-06-08 | 浙江大学 | Saline water shunting device with wireless transceiving function |
| CN112359786A (en) * | 2020-11-13 | 2021-02-12 | 宋广科 | Yellow water clarification check gate and method for clarifying river water and maintaining water and soil |
| NL2028026B1 (en) * | 2021-04-21 | 2022-11-02 | Abs Infradvies Bv | weir |
-
2010
- 2010-07-13 CN CN2010202574544U patent/CN201746827U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103348899A (en) * | 2013-08-02 | 2013-10-16 | 王卓民 | Prefabricated irrigation water intake and drainage control device for a paddy field |
| CN105648975A (en) * | 2015-12-30 | 2016-06-08 | 浙江大学 | Saline water shunting device with wireless transceiving function |
| CN112359786A (en) * | 2020-11-13 | 2021-02-12 | 宋广科 | Yellow water clarification check gate and method for clarifying river water and maintaining water and soil |
| NL2028026B1 (en) * | 2021-04-21 | 2022-11-02 | Abs Infradvies Bv | weir |
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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: 20110216 Termination date: 20130713 |