Water and fertilizer integrated irrigation and drainage device suitable for early-stage water shortage and later-stage water flooding farmland

Abstract

The utility model discloses a water and fertilizer integrated irrigation and drainage device suitable for a farmland with water shortage in the early stage and waterflooding in the later stage, and relates to the technical field of farmland irrigation and drainage equipment. Comprising an outer sleeve, a plurality of water seepage holes are formed in the top end of the outer sleeve, a plurality of irrigation holes are formed in the side wall of the outer sleeve, an inner blocking mechanism is rotationally connected to the interior of the outer sleeve, one end of the inner blocking mechanism extends to the outer side of the outer sleeve, and the inner blocking mechanism is used for blocking the water seepage holes or the irrigation holes. In the seasons with less rain and water shortage, the water seepage holes are shielded, the irrigation holes are opened, and crops are irrigated; in a rainy and ponding season, when water in the soil is oversaturated and the rainfall is greater than the water seepage amount of the soil, the irrigation holes are shielded, excessive water in the soil is collected into the external sleeve through the water seepage holes, and meanwhile, the valve is opened to discharge the collected water; the effect of adjusting irrigation and drainage requirements according to rainfall and soil flooding conditions is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of farmland irrigation and drainage equipment, and in particular to a water-fertilizer integrated irrigation and drainage device suitable for farmlands that are short of water in the early stage and flooded in the late stage. Background Art

[0002] Water-fertilizer integration is an effective measure to increase crop yields, improve water-fertilizer utilization efficiency, and save water and fertilizer resources. Some areas in southwest my country have severe seasonal droughts, with little rainfall before June. Water-fertilizer integrated irrigation facilities play an important role in ensuring timely planting, germination, and seedling protection of crops, ensuring the yield of later crops. However, after June, these areas have more rainfall, and continuous rainfall causes farmland to be frequently flooded, affecting crop growth, and requiring timely drainage; and the water-fertilizer integrated irrigation facilities laid in the early stage are difficult to play a role in the rainy season. Therefore, when the precipitation is small, it is necessary to carry out auxiliary irrigation (infiltration irrigation) of farmland to ensure the growth needs of crops. When the precipitation is large, it is necessary to assist the farmland to drain as much as possible to avoid flooding of crops. Therefore, it is urgent to design an integrated irrigation and drainage device suitable for farmland with water shortage in the early stage and flooding in the later stage, which can irrigate (infiltration irrigation) and drain water in time, ensure the normal growth of crops throughout the growth period, and improve crop yield and resource utilization efficiency.

[0003] It is found in the previously published patents, publication number: CN116084356A, name: a farmland water conservancy irrigation and drainage device. This Chinese patent blocks the water in the canal from entering the farmland when the water level probe touches the water surface, so as to improve the accuracy of the irrigation water level and avoid drowning of crops; the above-mentioned prior art is suitable for canal irrigation, which can only control the amount of irrigation water and can achieve the effect of auxiliary irrigation when the precipitation is small, but it cannot assist the drainage of farmland when the precipitation is high, which is quite different from pipeline irrigation.

[0004] Therefore, it is necessary to provide a water-fertilizer integrated irrigation and drainage device that can adjust the irrigation and drainage needs according to the precipitation and water accumulation in the farmland soil, which is suitable for farmlands that are short of water in the early stage and flooded in the later stage. Utility Model Content

[0005] The main purpose of the utility model is to provide a water-fertilizer integrated irrigation and drainage device suitable for farmland with water shortage in the early stage and flooding in the later stage, so as to solve the problems existing in the prior art.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] A water-fertilizer integrated irrigation and drainage device suitable for farmland with water shortage in the early stage and flooding in the later stage, comprising an external sleeve, a plurality of seepage holes are arranged on the top of the external sleeve, a plurality of irrigation holes are arranged on the side wall of the external sleeve, an internal rotation connection of the external sleeve is provided with an internal blocking mechanism, one end of the internal blocking mechanism extends to the outside of the external sleeve, and the internal blocking mechanism is used to block the seepage holes when irrigating when the soil is short of water or to block the irrigation holes when the soil is flooded and drained.

[0008] Furthermore, the internal baffle mechanism includes a sealed bearing, an arc-shaped baffle bar and a lever, one sealed bearing is connected to each of the two ends of the external sleeve, an arc-shaped baffle bar is connected between the two sealed bearings, the two arc-shaped baffle bars are mirror-imaged about the axis of the sealed bearing, and the two arc-shaped baffle bars are connected, the arc-shaped outer edge of the arc-shaped baffle bar is matched with the inner wall of the external sleeve, a lever groove is provided at the water outlet end of the external sleeve corresponding to the position of the sealed bearing, a lever rod is connected to the outer side wall of the sealed bearing, the lever rod is matched with the lever groove, and one end of the lever rod extends to the outside of the lever groove.

[0009] Furthermore, a sealing ring is arranged on the outer side wall of the sealing bearing, and the sealing ring is arranged on both sides of the pull groove respectively.

[0010] Furthermore, the external casing is buried in the soil at the interface between the tillage layer and the plow layer, and is inclined so that the height of the water inlet end is higher than the height of the water outlet end.

[0011] Furthermore, a connection port is provided at the water inlet end of the external sleeve, and the connection port is used to connect a high-pressure water inlet pipe.

[0012] Furthermore, the water outlet end of the external sleeve is connected to a valve.

[0013] Furthermore, irrigation holes are provided on opposite sides of the outer casing, and the irrigation holes are connected to seepage belts. The angle between the irrigation holes and the seepage holes is 90°, and the angle between the irrigation holes on the opposite sides is 180°.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] By arranging seepage holes and irrigation holes on the external casing and arranging an internal blocking mechanism inside the external casing, the seepage holes or one type of holes in the irrigation holes are blocked by controlling the internal blocking mechanism. When it is a season with little rain and water shortage, the seepage holes are blocked, the irrigation holes are opened, the valves are closed, and the crops are irrigated; when it is a rainy season with water accumulation in the soil, the soil is oversaturated with water, and the rainfall is greater than the soil seepage amount, the irrigation holes are blocked, and the excess water in the soil is collected into the external casing through the seepage holes, and the valves are opened at the same time to discharge the collected water; the effect of adjusting the irrigation and drainage needs according to the precipitation and soil flooding conditions is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The utility model is an overall schematic diagram of a water-fertilizer integrated irrigation and drainage device suitable for farmlands that are short of water in the early stage and flooded in the later stage.

[0017] Figure 2 It is a top view of a water-fertilizer integrated irrigation and drainage device suitable for farmlands that are short of water in the early stage and flooded in the later stage according to the utility model.

[0018] Figure 3 for Figure 2 AA section schematic diagram.

[0019] Figure 4 for Figure 2 BB part cross-sectional diagram.

[0020] Among them, 1-external sleeve; 11-dial groove; 2-seepage hole; 3-irrigation hole; 4-internal retaining mechanism; 41-sealed bearing; 42-arc retaining bar; 43-dial rod; 5-connecting port; 6-valve; 7-moisture surface. DETAILED DESCRIPTION

[0021] The technical solution of the utility model is further described below through the accompanying drawings and embodiments.

[0022] Example

[0023] Combination Figure 1-4 The utility model provides a water-fertilizer integrated irrigation and drainage device suitable for farmland with water shortage in the early stage and flooding in the later stage, comprising an external sleeve 1, a plurality of seepage holes 2 are arranged on the top of the external sleeve 1, a plurality of irrigation holes 3 are arranged on the side wall of the external sleeve 1, an internal retaining mechanism 4 is rotatably connected inside the external sleeve, one end of the internal retaining mechanism 4 extends to the outside of the external sleeve 1, and the internal retaining mechanism 4 is used to block the seepage holes when irrigating when the soil is short of water or to block the irrigation holes when the soil is flooded and drained.

[0024] The water inlet end of the external sleeve 1 is provided with a connecting port 5, and the connecting port 5 is used to connect a high-pressure water inlet pipe, through which water is introduced into the external sleeve 1 for farmland irrigation; the water outlet end of the external sleeve 1 is connected with a valve 6, and the valve 6 facilitates the discharge of water inside the external sleeve 1.

[0025] When it is a season with little rain and water shortage, the water seepage hole 2 can be blocked by controlling the rotation of the inner blocking mechanism 4, water can be filled into the external sleeve 1 through the high-pressure water inlet pipe, and the valve 6 can be closed to irrigate the crops; when it is a season with abundant rain and water accumulation, the soil is oversaturated with water, and the rainfall is greater than the soil seepage amount, the irrigation hole 3 can be blocked by controlling the rotation of the inner blocking mechanism 4, and the oversaturated water in the soil can be collected into the external sleeve 1 through the water seepage hole 2, and the valve 6 can be opened at the same time to discharge the collected water.

[0026] The internal retaining mechanism 4 includes a sealed bearing 41, an arcuate retaining strip 42 and a lever 43. A sealed bearing 41 is connected to the inside of both ends of the external sleeve 1. An arcuate retaining strip 42 is connected between the two sealed bearings 41. The two arcuate retaining strips 42 are mirror-imaged about the axis of the sealed bearing 41 and are connected to each other. The arcuate outer edge of the arcuate retaining strip 42 is matched with the inner wall of the external sleeve 1. A lever 43 is connected to the outer wall of the sealed bearing 41. The lever 43 is matched with the lever groove 11, and one end of the lever 43 extends to the outside of the lever groove 11.

[0027] By manually shifting the lever 43, the device can be placed in two working states: the two arc-shaped retaining bars 42 simultaneously block the irrigation holes on both sides and open the seepage hole 2; or the arc-shaped retaining bars 42 block the seepage hole 2 and open the irrigation hole 3.

[0028] As an optimization, a sealing gasket is provided on the outer side of the arc-shaped baffle 42 .

[0029] Irrigation holes 3 are provided on opposite sides of the external sleeve 1 to facilitate irrigation of crops on both sides of the soil moisture surface 7. The irrigation holes 3 are connected to the infiltration irrigation belt, and the connection method can be a fixed connection or a threaded detachable connection. The length of the infiltration irrigation belt is determined according to the soil moisture surface width or the number of crop rows to be irrigated. The angle between the irrigation hole 3 and the seepage hole 2 is 90°, and the angle between the irrigation holes 3 on the opposite sides is 180°. When the lever 43 is turned, it only needs to be rotated 90 degrees to switch the working conditions of blocking the irrigation hole 3 or blocking the seepage hole 2.

[0030] As an optimization, scale lines are provided on the dial groove 11 to facilitate the control of the rotation angle.

[0031] A sealing ring is arranged on the outer side wall of the sealing bearing 41 and is respectively arranged on both sides of the pull groove 11. The arrangement of the sealing ring can further prevent water from flowing out of the gap between the sealing bearing 41 and the external sleeve 1, thereby improving the sealing performance of the device.

[0032] The external casing 1 is buried at the interface between the cultivated layer and the plow layer in the soil and is inclined, with the water inlet height being higher than the water outlet height, so as to facilitate the infiltration of soil water into the external casing 1 and the discharge of water in the external casing 1.

[0033] The utility model provides seepage holes and irrigation holes on an external sleeve, and provides an internal blocking mechanism inside the external sleeve, and controls the internal blocking mechanism to block one of the seepage holes or irrigation holes. When it is a season with little rain and water shortage, the seepage holes are blocked, the irrigation holes are opened, the valves are closed, and crops are irrigated. When it is a season with a lot of rain and water accumulation, the soil is oversaturated with water, and the rainfall is greater than the amount of soil seepage, the irrigation holes are blocked, and the excess water in the soil is collected into the external sleeve through the seepage holes, and the valves are opened at the same time to discharge the collected water. The effect of adjusting the irrigation and drainage needs according to precipitation and soil flooding is achieved.

[0034] The above description is only a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any slight modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A water-fertilizer integrated irrigation and drainage device suitable for farmland with water shortage in the early stage and flooding in the later stage, characterized in that: It includes an external sleeve, the top of which is provided with a plurality of seepage holes, the side wall of which is provided with a plurality of irrigation holes, the internal rotation of the external sleeve is connected to an internal blocking mechanism, one end of the internal blocking mechanism extends to the outside of the external sleeve, and the internal blocking mechanism is used to block the seepage holes when irrigation is required when the soil is short of water or to block the irrigation holes when the soil is flooded and drained.

2. The water-fertilizer integrated irrigation and drainage device suitable for farmland with water shortage in the early stage and flooding in the later stage as claimed in claim 1, characterized in that: The internal retaining mechanism includes a sealed bearing, an arc-shaped retaining bar and a shift rod. A sealed bearing is connected to each end of the external sleeve. An arc-shaped retaining bar is connected between the two sealed bearings. The two arc-shaped retaining bars are mirror-imaged about the axis of the sealed bearing and are connected to each other. The arc-shaped outer edge of the arc-shaped retaining bar is adapted to the inner wall of the external sleeve. A shift groove is provided at the water outlet end of the external sleeve corresponding to the position of the sealed bearing. A shift rod is connected to the outer side wall of the sealed bearing. The shift rod is adapted to the shift groove, and one end of the shift rod extends to the outside of the shift groove.

3. The water-fertilizer integrated irrigation and drainage device suitable for farmland with water shortage in the early stage and flooding in the later stage as claimed in claim 2, characterized in that: A sealing ring is provided on the outer side wall of the sealing bearing, and the sealing rings are respectively provided on both sides of the shifting groove.

4. The water-fertilizer integrated irrigation and drainage device suitable for farmland with water shortage in the early stage and flooding in the later stage as claimed in claim 1, characterized in that: The external casing is buried at the interface between the cultivated layer and the plowed layer in the soil and is arranged obliquely, with the height of the water inlet end being higher than the height of the water outlet end.

5. The water-fertilizer integrated irrigation and drainage device suitable for farmland with water shortage in the early stage and flooding in the later stage as claimed in claim 1, characterized in that: The water inlet end of the external sleeve is provided with a connecting port, and the connecting port is used to connect to the high-pressure water inlet pipe.

6. The water-fertilizer integrated irrigation and drainage device suitable for farmland with water shortage in the early stage and flooding in the later stage as claimed in claim 1, characterized in that: The water outlet end of the external sleeve is connected with a valve.

7. The water-fertilizer integrated irrigation and drainage device suitable for farmland with water shortage in the early stage and flooding in the later stage as claimed in claim 1, characterized in that: Irrigation holes are provided on opposite sides of the outer sleeve, and the irrigation holes are connected to seepage irrigation belts. The angle between the irrigation holes and the seepage holes is 90 degrees, and the angle between the irrigation holes on the opposite sides is 180 degrees.

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