Buried irrigation and drainage device

Abstract

The invention relates to a kind of buried sprinkling irrigation flood drainage devices, including buried sprinkling irrigation mechanism and gas auxiliary mechanism;The gas auxiliary mechanism includes fan, main gas supply pipe, auxiliary gas supply pipe and connecting pipe, the fan, main gas supply pipe and auxiliary gas supply pipe are sequentially installed together, the auxiliary gas supply pipe is provided with several injection pipes, the outlet end of the injection pipe is located in the vicinity of the automatic telescopic sprinkler, the outlet end of the injection pipe is inclined to the direction of the automatic telescopic sprinkler;One end of the connecting pipe is fixed on the irrigation branch pipe of buried sprinkling irrigation mechanism, and the other end is installed together with the automatic telescopic sprinkler.The invention increases gas auxiliary mechanism on the basis of traditional buried sprinkling irrigation device, the soil above the automatic telescopic sprinkler is loosened by fan and gas auxiliary mechanism, effectively reduces the resistance when the automatic telescopic sprinkler rises, helps the lifting of automatic sprinkler, and improves the service life.

Description

Technical Field

[0001] This invention relates to an underground sprinkler irrigation and drainage device, belonging to the field of irrigation sprinklers. Background Technology

[0002] Water-saving irrigation is an irrigation measure that aims to maximize crop yield or income with the minimum amount of water used, that is, to maximize the crop yield and output value per unit of irrigation water. The buried automatic telescopic sprinkler technology integrates the ground pipe, vertical pipe and lifting sprinkler head into one unit. It is buried below the cultivated layer and automatically rises to the ground under the action of water pressure. It has both spraying and ejection functions. After irrigation, it can be retracted below the cultivated layer without affecting field cultivation and mechanical operation and avoiding human damage. There is no need to find the location of the field outlet. No facilities need to be installed or dismantled before and after sprinkler operation. There is no need for field sleeves or special facilities for protection. These features greatly reduce labor intensity, reduce the risk of equipment damage and improve work efficiency. However, there are the following problems: (1) The existing automatic telescopic sprinkler head structure is a multi-stage sleeve. The water pressure is used for rising and the spring is used for falling. Some use a water pump to pump the water stored in the pipe to form a negative pressure and make it fall. The above structure is unstable and causes it to be unable to rise or fall during extension and retraction. (2) Existing farmland irrigation equipment is only used for irrigation and fertilization, and cannot solve the problem of farmland drainage. Summary of the Invention

[0003] This invention relates to a buried sprinkler irrigation and drainage device and method, which solves the problems of instability and easy damage of existing buried sprinkler irrigation devices when rising or falling, as well as the problem that existing buried sprinkler irrigation devices cannot achieve drainage.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0005] A buried sprinkler irrigation and drainage device includes a buried sprinkler irrigation mechanism and a gas-assisted mechanism. The buried sprinkler irrigation mechanism includes a liquid supply pump, a main irrigation pipe, an irrigation branch pipe, and an automatic telescopic sprinkler head. The gas-assisted mechanism includes a blower, a main air supply pipe, an auxiliary air supply pipe, and a connecting pipe. The blower, main air supply pipe, and auxiliary air supply pipe are installed together in sequence. Several spray pipes are provided on the auxiliary air supply pipe. The outlet end of each spray pipe is located near the automatic telescopic sprinkler head and is inclined towards the automatic telescopic sprinkler head. A movable cover is provided at the outlet end of each spray pipe. One end of the connecting pipe is fixed to the irrigation branch pipe of the buried sprinkler irrigation mechanism, and the other end is installed with the automatic telescopic sprinkler head.

[0006] Furthermore, preferably: the connecting pipe is provided with a drain outlet and a first drain plate, one end of the first drain plate is movably connected to the lower part of the drain outlet, and the other end of the first drain plate is inclined upward and contacts the inner wall of the connecting pipe; the drain outlet is provided with a drain pipe, which is connected to the auxiliary air supply pipe, and a second drain plate is provided inside the drain pipe, one end of the second drain plate is movably connected to the drain pipe, and the other end of the second drain plate contacts the inner wall of the drain pipe, and a support spring is provided at the lower part of the second drain plate.

[0007] Furthermore, preferably: a limiting block is provided inside the sewage pipe, and the limiting block is located above the second sewage plate.

[0008] Furthermore, preferably, the inlet and outlet ends of the auxiliary gas supply pipe are respectively equipped with filters.

[0009] Furthermore, preferably: the buried sprinkler irrigation and drainage device also includes a control system, which includes a controller, a dissolved oxygen sensor, an EC sensor, and a temperature and humidity sensor, and the liquid supply pump, fan, dissolved oxygen sensor, EC sensor, and temperature and humidity sensor are respectively connected to the controller.

[0010] Furthermore, preferably, each of the aforementioned automatic telescopic nozzles is surrounded by 1-4 of the aforementioned spray pipes.

[0011] Furthermore, preferably: the buried sprinkler irrigation and drainage device further includes a drainage mechanism, which includes a housing, a circular portion and a conical portion. The circular portion of the housing is installed together with the drainage outlet where the irrigation branch pipe is installed. The conical portion is provided with a permeable cover. A fixed pipe is provided inside the circular portion. The fixed pipe is movably connected to the circular portion. One end of the fixed pipe is provided with a sealing spring, and the other end of the sealing spring is fixed with a sealing gasket. The sealing gasket enters the interior of the irrigation branch pipe through the drainage outlet.

[0012] Furthermore, preferably, the conical portion is provided with several layers of filter material.

[0013] Furthermore, preferably, the conical section is provided with four layers of filter material.

[0014] The beneficial effects of this invention are:

[0015] This invention adds a gas-assisted mechanism to the traditional buried sprinkler irrigation device. In actual operation, the soil above the automatic telescopic sprinkler head is first aerated and loosened by the blower and the gas-assisted mechanism. This can effectively reduce the resistance when the automatic telescopic sprinkler head rises, which helps the automatic sprinkler head to rise and fall and improves its service life.

[0016] The device of this invention is equipped with a gas-assisted mechanism, which can introduce oxygen-containing gas to supplement oxygen to the roots of crops in farmland, effectively solving the problem of oxygen deficiency in crop roots; in addition, the temperature of the gas can be adjusted to regulate the temperature of crop roots, which helps crop growth and increases yield.

[0017] This invention includes a connecting pipe and a drain pipe. A drain outlet and a first drain plate are installed inside the connecting pipe, and a second drain plate is installed inside the drain pipe. During normal spraying, the drain plate seals the drain outlet under water pressure. When the nozzle retracts, the water pressure decreases, the drain plate moves downwards, and seals the connecting pipe, allowing backflow water and introduced sediment to enter the air supply pipe through the drain outlet. Under normal circumstances, the second drain plate seals the drain pipe under spring pressure. When water flows, the second drain plate opens, allowing wastewater to enter the air supply pipe. After irrigation ends, a drain operation is performed via an auxiliary air supply mechanism. This effectively solves the problem of sediment entering and damaging the nozzle during automatic retractable nozzle retraction.

[0018] This invention incorporates a drainage mechanism. During normal operation, the sealing gasket, under the action of the sealing spring, seals the drainage outlet. When flooding occurs, the supply pump reverses, creating negative pressure in the supply pipe. This stretches the sealing spring, opening the drainage outlet and allowing water from the farmland to enter the supply pipe and be pumped out, thus draining the water from the plant roots. This more quickly addresses the impact of flooding on plants and helps reduce damage to crops. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present invention;

[0021] Figure 2 This is a general field diagram of Embodiment 1 of the present invention;

[0022] Figure 3 This is a structural block diagram of the control system of the present invention;

[0023] Figure 4 This is a schematic diagram of the structure of Embodiment 2 of the present invention;

[0024] Figure 5 This is a general field diagram of Embodiment 2 of the present invention;

[0025] Figure 6 for Figure 4 Enlarged cross-sectional view of section A in the middle;

[0026] Figure 4 This is a schematic diagram of the structure of Embodiment 2 of the present invention;

[0027] Figure 7 This is a general field diagram of Embodiment 3 of the present invention;

[0028] Figure 8 for Figure 4 Enlarged cross-sectional view of section B in the middle;

[0029] In the diagram, 1 is the spray pipe, 2 is the automatic telescopic nozzle, 3 is the connecting pipe, 4 is the irrigation branch pipe, 5 is the auxiliary air supply pipe, 6 is the movable cover, 7 is the main air supply pipe, 8 is the blower, 9 is the liquid supply pump, 10 is the irrigation main pipe, 11 is the sewage pipe, 12 is the filter screen, 13 is the sewage outlet, 14 is the first sewage discharge plate, 15 is the second sewage discharge plate, 16 is the support spring, 17 is the limit block, 18 is the exhaust pipe, 19 is the drainage mechanism, 20 is the shell, 21 is the sealing gasket, 22 is the fixing pipe, 23 is the filter material, 24 is the sealing spring, and 25 is the permeable cover. Detailed Implementation

[0030] The technical solutions of this embodiment will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0031] Example 1

[0032] like Figure 1-3 As shown, a buried sprinkler irrigation and drainage device includes a buried sprinkler irrigation mechanism and a gas-assisted mechanism. The buried sprinkler irrigation mechanism includes a liquid supply pump 9, an irrigation main pipe 10, an irrigation branch pipe 4, and an automatic telescopic sprinkler head 2. The automatic telescopic sprinkler head 2 is a conventional device for buried sprinkler irrigation equipment, and any buried telescopic sprinkler head on the market can be selected, so it will not be described in detail.

[0033] The gas-assisted mechanism includes a blower 8, a main air supply pipe 7, an auxiliary air supply pipe 5, and a connecting pipe 3. The blower 8, main air supply pipe 7, and auxiliary air supply pipe 5 are installed sequentially. Several injection pipes 1 are installed on the auxiliary air supply pipe 5. The outlet end of each injection pipe 1 is located near the automatic telescopic nozzle 2, and the outlet end of each injection pipe 1 is inclined towards the automatic telescopic nozzle 2, causing the gas from the injection pipe 1 to blow upwards towards the automatic telescopic nozzle 2, softening the soil above and facilitating the raising and lowering of the automatic telescopic nozzle 2. The inclination angle is set according to actual needs, generally 15-60°. A movable cover 6 is installed at the outlet end of each injection pipe 1; one side of the movable cover 6 is connected to the injection pipe 1 by a pin, so that when the injection pipe 1 is not working, the movable cover 6 seals the injection pipe 1 to prevent soil from entering. When gas passes through, the gas blows open the movable cover 6, and the gas is ejected. Each automatic telescopic nozzle 2 is surrounded by 1-4 injection pipes 1; this embodiment uses two injection pipes 1.

[0034] One end of the connecting pipe 3 is fixed to the irrigation branch pipe 4 of the buried sprinkler irrigation mechanism, and the other end is installed together with the automatic telescopic sprinkler head 2.

[0035] The buried sprinkler irrigation and drainage device also includes a control system, which comprises a controller, a dissolved oxygen sensor, an EC sensor, and a temperature and humidity sensor. The liquid supply pump 9, the fan 8, the dissolved oxygen sensor, the EC sensor, and the temperature and humidity sensor are respectively connected to the controller. By setting up the control system, the physical and chemical properties of the soil can be measured in real time, achieving automated control. The control system of this invention can also be equipped with a wireless transmission module to achieve remote control.

[0036] The operation process of this embodiment:

[0037] According to the design requirements, the equipment of this invention is installed below the tillage layer and connected. The sensors of the control system monitor the soil physicochemical indicators in real time. When sprinkler irrigation is required, the blower 8 is first started to send air to the spray pipe 1 through the main air supply pipe 7 and the auxiliary air supply pipe 5. The high-pressure air is sprayed out through the spray pipe 1 to loosen the soil above the automatic telescopic nozzle 2. After the loosening operation is completed, the liquid pump 9 is started to make the automatic telescopic nozzle 2 rise under water pressure. After the automatic telescopic nozzle 2 extends out of the soil, the blower 8 is turned off and the sprinkler irrigation operation is carried out. Finally, after the sprinkler irrigation operation is completed, the blower 8 can be turned on, and the automatic telescopic nozzle 2 retracts under the action of high-pressure air.

[0038] In this implementation, the blower 8 uses high-pressure air to loosen the soil near the nozzle, making it easier for the automatic telescopic nozzle 2 to rise and fall, which helps to improve the service life of the automatic telescopic nozzle 2.

[0039] When the sensor detects low dissolved oxygen in the soil, fan 8 can be turned on to introduce oxygen-containing gas for oxygen supplementation.

[0040] Example 2

[0041] like Figure 4-6 As shown, it is basically the same as in Embodiment 1, except that: a drain port 13 and a first drain plate 14 are provided on the connecting pipe 3. One end of the first drain plate 14 is movably connected to the lower part of the drain port 13, and the first drain plate 14 is installed together with the connecting pipe 3 by a pin. The other end of the first drain plate 14 is inclined upward and contacts the inner wall of the connecting pipe 3. A drain pipe 11 is provided on the drain port 13, and the drain pipe 11 is connected to the auxiliary air supply pipe. A second drain plate 15 is provided inside the drain pipe 11. One end of the second drain plate 15 is movably connected to the drain pipe 11, and the second drain plate 15 is installed together with the drain pipe 11 by a pin. The other end of the second drain plate 15 contacts the inner wall of the drain pipe 11. A support spring 16 is provided at the lower part of the second drain plate 15.

[0042] An exhaust pipe 18 is provided at the tail end of the auxiliary air supply pipe 5, and a solenoid valve is provided on the exhaust pipe 18. The solenoid valve is connected to the controller.

[0043] In this embodiment, non-powered valves need to be installed in the connecting pipe 3 and the drain pipe 11. Therefore, square pipes are used in the connecting pipe 3 and the drain pipe 11, which is more conducive to the installation of the drain plate.

[0044] A limiting block 17 is provided inside the drain pipe 11, and the limiting block 17 is located above the second drain plate 15. The limiting block 17 can effectively prevent the problem that the support spring 16 cannot fix the second drain plate 15 and seal the drain pipe 11 due to excessive wind speed.

[0045] When the automatic retractable sprinkler head 2 retracts, the water pressure decreases, causing some muddy water to enter the sprinkler head and then the irrigation branch pipe, contaminating the branch pipe and reducing its service life. In this embodiment, the above-described structure is used. When the automatic retractable sprinkler head 2 retracts, the muddy water entering it is directed by the first drain plate 14 into the drain pipe 11, then through the second drain plate 15 into the auxiliary air supply pipe. Finally, the blower 8 is turned on, and the solenoid valve is opened. The muddy water mixture in the auxiliary air supply pipe 5 is then ejected from the exhaust pipe 18 by the high-pressure air, completing the drainage operation.

[0046] The auxiliary air supply pipe 5 is equipped with filter screens 12 at both the inlet and outlet ends, which can effectively prevent concrete from entering the auxiliary air supply pipe 5 and facilitate sewage discharge operations.

[0047] Example 3

[0048] like Figure 7 and 8 As shown, it is basically the same as Embodiment 2, except that: the buried sprinkler irrigation and drainage device further includes a drainage mechanism 19, which includes a housing 20. The housing 20 includes a circular part and a conical part. The circular part of the housing 20 is installed together with the drainage outlet of the irrigation branch pipe 4. The conical part is provided with a water-permeable cover 25. A fixing pipe 22 is provided inside the circular part. The fixing pipe 22 is movably connected to the circular part. A sealing spring 24 is provided at one end of the fixing pipe 22, and a sealing gasket 21 is fixed at the other end of the sealing spring 24. The sealing gasket 21 enters the interior of the irrigation branch pipe 4 through the drainage outlet. The sealing gasket 21 is made of corrosion-resistant silicone or plastic with an inner elastic material, making it easy to extend into the interior of the irrigation branch pipe 4.

[0049] The conical section is provided with several layers of filter material 23. The filter material 23 can be set as needed. In this embodiment, there are four layers of filter material 23, which can effectively prevent mud and water from entering the water supply branch pipe.

[0050] For farmland to achieve stable yields regardless of drought or flood, it needs to have drainage capabilities in addition to drought prevention. However, existing underground sprinkler irrigation systems do not have drainage capabilities. When drainage is needed, drainage ditches are usually built, which has the following problems: drainage ditches not only occupy land, but also cannot quickly solve the problem of waterlogging around the roots of crops.

[0051] This invention employs the above-described structure. During normal sprinkler irrigation, the sealing gasket 21 seals the drainage outlet under the action of the sealing spring 24, ensuring that water in the irrigation branch pipe does not leak out. When drainage is required, the liquid supply pump 9 reverses, or a separate drainage pump is used, creating negative pressure in the irrigation branch pipe. Under the pressure difference, the sealing spring 24 is stretched, opening the drainage outlet and allowing water from the soil to enter the irrigation branch pipe for drainage. During drainage, the water in the soil is filtered by the filter material 23, ensuring that the water entering the irrigation branch pipe remains clear and preventing contamination. This structure allows for rapid drainage of crop roots, helping to quickly reduce the impact of flooding on agriculture. Simultaneously, an auxiliary air supply system can be activated to introduce oxygen-containing air, quickly resolving the problem of oxygen deficiency in plant roots.

[0052] Although embodiments of the present invention have been described above, any modifications and substitutions made by those skilled in the art without departing from the principles and spirit of the present invention are within the scope of protection claimed by the present invention.

Claims

1. A subsurface irrigation and drainage device, characterized in that: The utility model provides a kind of buried sprinkling irrigation device, including buried sprinkling irrigation mechanism and gas auxiliary mechanism, the buried sprinkling irrigation mechanism includes liquid supply pump, irrigation main pipe, irrigation branch pipe and automatic telescopic nozzle;The gas auxiliary mechanism includes fan, main gas supply pipe, auxiliary gas supply pipe and connecting pipe, the fan, main gas supply pipe and auxiliary gas supply pipe are sequentially installed together, the auxiliary gas supply pipe is provided with several injection pipes, the outlet end of the injection pipe is located in the vicinity of the automatic telescopic nozzle, the outlet end of the injection pipe is inclined to the automatic telescopic nozzle direction, and the outlet end of the injection pipe is provided with a movable cover;One end of the connecting pipe is fixed on the irrigation branch pipe of buried sprinkling irrigation mechanism, and the other end is installed together with the automatic telescopic nozzle;The connecting pipe is provided with a drain outlet and a first drain plate, one end of the first drain plate is movably connected to the lower part of the drain outlet, and the other end of the first drain plate is inclined upward and in contact with the inner wall of the connecting pipe;The drain outlet is provided with a drain pipe connected to the auxiliary gas supply pipe, and the drain pipe is provided with a second drain plate inside, one end of the second drain plate is movably connected to the drain pipe, the other end of the second drain plate is in contact with the inner wall of the drain pipe, and the lower part of the second drain plate is provided with a supporting spring;The drain pipe is provided with a limiting block inside, and the limiting block is located above the second drain plate;The buried sprinkling irrigation drainage device further comprises a drainage mechanism, the drainage mechanism includes a housing, the housing includes a circular part and a conical part, the circular part of the housing is installed together with the drainage outlet of the irrigation branch pipe, and the conical part is provided with a water-permeable cover;A fixed tube is arranged inside the circular part, the fixed tube is movably connected together with the circular part, one end of the fixed tube is provided with a sealing spring, the other end of the sealing spring is fixed with a sealing pad, and the sealing pad enters the inside of the irrigation branch pipe through the drainage outlet;When drainage operation is needed, a separate drainage pump is used to form negative pressure in the irrigation branch pipe, the sealing spring is stretched under the action of pressure difference, the drainage outlet is opened, water in the soil enters the irrigation branch pipe, and drainage operation is performed, and the conical part is provided with several layers of filter material.

2. The buried irrigation and drainage device according to claim 1, characterized in that: The inlet end of the auxiliary gas supply pipe is provided with a filter screen.

3. The buried irrigation and drainage device according to claim 1, characterized in that: The buried sprinkling irrigation drainage device further comprises a control system, the control system includes a controller, an oxygen dissolved sensor, an EC sensor and a temperature and humidity sensor, and the liquid supply pump, the fan, the oxygen dissolved sensor, the EC sensor and the temperature and humidity sensor are connected to the controller respectively.

4. The buried irrigation and drainage device according to claim 1, characterized in that: Each automatic telescopic nozzle is provided with 1-4 injection pipes.

5. The buried irrigation and drainage device according to claim 1, characterized in that: The conical part is provided with four layers of filter material.

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