An intelligent water-saving automatic irrigation device for farmland

Abstract

The present invention discloses an intelligent water-saving automatic irrigation device for farmland, comprising a water supply pipeline, a sprinkler irrigation component and an infiltration irrigation component. The present invention provides a retractable sprinkler irrigation component in conjunction with the infiltration irrigation component, and can use the sprinkler irrigation component to supply water to crops in the germination stage and seedling stage after sowing in the farmland. When the crop plants enter the seedling stage, the infiltration irrigation component can be used to supply water to crops with longer roots and stems in the seedling stage, so as to meet the irrigation water requirements of the crops in different growth cycles. The nozzle of the sprinkler irrigation component can be stored under the ground surface by using a storage groove to avoid affecting the related work of an agricultural harvester or a seeding machine. At the same time, a return water component is also configured to recycle and reuse excess water from natural precipitation or sprinkler irrigation and infiltration irrigation, so as to achieve a water-saving effect. In addition, a controller and a sensor module are used to enable the control unit to achieve an intelligent water-saving irrigation effect based on the detection data of the sensor module.

Description

Technical Field

[0001] The present invention relates to the field of farmland irrigation, and in particular to an intelligent water-saving automatic irrigation device for farmland. Background Art

[0002] Farmland irrigation mainly refers to irrigation operations in agricultural cultivation areas. Farmland irrigation methods can generally be divided into traditional surface irrigation, ordinary sprinkler irrigation and micro-irrigation.

[0003] Traditional surface irrigation includes border irrigation, furrow irrigation, flooding, and overtopping. However, these irrigation methods often consume a lot of water and have low water utilization efficiency, making them a very irrational agricultural irrigation method. In addition, it is difficult to draw groundwater for traditional surface irrigation in arid areas such as mountainous areas and plateaus.

[0004] Conventional sprinkler irrigation is a common irrigation method in China's agricultural production. Sprinkler irrigation uses a water pump and pipe system or the drop of natural water sources to spray water with a certain pressure into the air, which then disperses into small droplets or forms a mist that falls on plants and the ground. However, the water utilization efficiency of conventional sprinkler irrigation is not high.

[0005] Modern agricultural micro-irrigation technologies include micro-sprinkler irrigation and drip irrigation. These irrigation technologies generally have good water-saving performance and higher water utilization efficiency than traditional irrigation methods. Of course, there are also some disadvantages.

[0006] Among the above-mentioned irrigation methods, ordinary sprinkler irrigation, micro-sprinkler irrigation, and drip irrigation are not suitable for large-scale use in open-air farmland, such as wheat fields and corn fields. Due to the large area, the laying cost is high. At the same time, crops will grow, and the taller crop plants will significantly block the sprinkler irrigation range. To avoid blocking the sprinkler heads, the sprinkler heads can be erected in the air to solve the problem of blocking the sprinkler heads. However, due to the influence of the laying of sprinkler and drip irrigation pipes and the installation of sprinkler heads, it is not convenient to mechanically harvest the crops after they mature.

[0007] Modern agricultural micro-irrigation technology also includes infiltration irrigation, which refers to underground irrigation. Irrigation water can be introduced into the ground through buried pipes to moisten the soil in the root zone, which can effectively reduce the evaporation of irrigation water. Although the water-saving effect of infiltration irrigation is relatively ideal, it is only suitable for environments where trees such as fruit trees and gardens are not often transplanted. Because crops in farmland are often sown and harvested, and their surface soil needs to be turned over, in order to avoid the underground buried pipes of infiltration irrigation affecting the turning work, the depth of the buried pipes needs to be buried deep to avoid the turning depth. The infiltration water will seep downward due to the influence of gravity. When the crops are in the post-sowing and germination stage, their roots and stems grow at a shallow depth and cannot reach the water infiltrated after absorbing the deep-buried pipes, resulting in the underground buried pipe operation method of infiltration irrigation being unsuitable.

[0008] It can be seen from this that the existing irrigation methods such as sprinkler irrigation, drip irrigation, and infiltration irrigation cannot be applied solely to farmland operations. Summary of the Invention

[0009] The technical problem to be solved by the present invention is to address the shortcomings of the existing technology mentioned in the background technology, and to provide an intelligent water-saving automatic irrigation device for farmland that combines sprinkler irrigation and infiltration irrigation and cooperates with a return water component for water recovery and reuse, and is also equipped with a control unit and a sensor module.

[0010] The present invention is achieved through the following technical solutions: a water pipeline, comprising an upper pipeline and a lower pipeline, is buried under a field ridge;

[0011] The sprinkler assembly includes a plurality of retractable sprinkler seats fixedly connected to the upper pipe, a sprinkler head fixedly mounted on the sprinkler seat, and a worm screw penetrating the retractable sprinkler seat for driving the sprinkler seat to retract and adjust;

[0012] The infiltration irrigation assembly comprises an infiltration irrigation branch pipe detachably connected to the lower pipeline and a connecting valve located at the connection between the infiltration irrigation branch pipe and the lower pipeline;

[0013] The return water assembly includes a water diversion rod or water diversion cloth obliquely arranged below the infiltration irrigation branch pipe, and a return water pipe located below the water supply pipe, wherein the oblique lower end of the water diversion rod or water diversion cloth is overlapped on the return water pipe;

[0014] It also includes a pumping station, and the water supply pipe and return pipe are connected to the pumping station. The pumping station is equipped with a wind direction and speed sensor, a temperature and humidity sensor, and a rainfall sensor. The pumping station is equipped with a control unit and a motor for driving the worm gear. The control unit controls its pumping operation and motor operation based on the detection data of the wind direction and speed sensor, the temperature and humidity sensor, and the rainfall sensor.

[0015] By adopting the above technical solution, the upper pipeline is used to supply water to the sprinkler irrigation component, so that the sprinkler irrigation component can meet the water supply required by the germination and seedling stages of crops in the farmland after sowing; the lower pipeline is used to supply water to the infiltration irrigation component, so that the infiltration irrigation component can meet the water supply required by the crops in the farmland during the seedling stage and when the roots and stems of the plants are long; the return water component is used to recycle excess water in the soil for the purpose of water reuse; the control unit can control the pump station to start and stop accordingly based on various sensors, thereby achieving intelligent water-saving irrigation effects.

[0016] In the specific technical solution, the retractable sprinkler seat includes a base rod and a telescopic rod. A water chamber is opened in the base rod, which is connected to the upper water pipe. A tooth groove is opened on the periphery of the telescopic rod. The telescopic rod passes through the water chamber and engages with the base rod. A water seal is installed at the lower end of the telescopic rod, and the sprinkler head is installed at the upper end of the telescopic rod.

[0017] By adopting the above technical solution, the telescopic tube can be telescopically adjusted based on the base rod, thereby driving the sprinkler head to adjust the height accordingly. At the same time, the design of the water chamber and the water seal enables the water to still stably enter the telescopic rod during the movable displacement of the telescopic tube, and enter the sprinkler head through the telescopic rod, so that the sprinkler head can complete the sprinkler irrigation operation of spraying water.

[0018] In a specific technical solution, a protective sleeve is connected between the telescopic sprinkler seats, a worm is located in the protective sleeve, and the worm passes through the base rod and engages with the telescopic rod.

[0019] By adopting the above technical solution, the protective sleeve can provide a protective effect for the worm, preventing the worm from being eroded by the soil, thereby ensuring the stable working state of the worm.

[0020] In a specific technical solution, a protective sleeve is connected between the retractable sprinkler seats, the worm is located in the protective sleeve, the worm passes through the base rod and engages with the telescopic rod through a transmission rod, a control bearing is provided on the outer sleeve of the transmission rod, and a control handle is connected to the upper end of the control bearing, which extends to the ground surface.

[0021] By adopting the above technical solution, the transmission rod can serve as a power transmission component between the worm and the telescopic rod, allowing the staff to manually choose to cut off or connect the power transmission effect of one or more telescopic rods, or manually set the telescopic rod after cutting off the power transmission to achieve the control effect of manual telescopic adjustment, thereby improving the application flexibility of the telescopic rod.

[0022] In a specific technical solution, the top of the base rod is flush with the ground surface, and a groove for accommodating a sprinkler head is provided at the upper end of the base rod. The sprinkler head has a high water spraying area and a low water spraying area.

[0023] By adopting the above technical solution, the base rod can be buried in the soil, and its surface is exposed to the ground, and the sprinkler head can be stored in the groove, thereby avoiding affecting the related work of the agricultural harvester or seeder. In addition, the high water spraying area can increase the head of the water spraying of the sprinkler head. The low water spraying area can first spray the water in the spraying range close to the sprinkler head to achieve a uniform sprinkler irrigation effect of the sprinkler head. Secondly, when the sprinkler head is displaced downward into the groove through the telescopic rod, the low water spraying area can use the impact force of the water flow to flush out the soil flowing into the groove, thereby achieving a cleaning effect on the groove storage and ensuring the smooth flow of the sprinkler head nozzle.

[0024] In the specific technical solution, a compression joint is formed at the connecting end of the infiltration irrigation branch pipe and the lower pipeline, a compression groove is opened at the connection between the lower pipeline and the compression joint, the connecting valve is connected to the compression groove through a spring, and a limiting groove is opened in the lower pipeline at the corresponding position of the connecting valve, and water seepage micropores are opened on the upper end and both side walls of the infiltration irrigation branch pipe.

[0025] By adopting the above technical solution, the infiltration irrigation branch pipe is connected to the side wall of the lower pipe through the crimping joint and the crimping groove. When the crimping joint is inserted into the crimping groove, the connecting valve can be pressed to move downward, so that the water in the lower pipe can flow into the infiltration irrigation branch pipe. When the crimping joint is pulled out of the crimping groove, the connecting valve will be inserted into the limit groove under the action of the spring, thereby closing the lower pipe and preventing the water in the lower pipe from overflowing.

[0026] In a specific technical solution, overlapping platforms are formed on the side walls of both ends of the return pipe, the water diversion rod or water diversion cloth is overlapped on the overlapping platforms, and the upper half of the return pipe above the overlapping platforms is provided with water seepage micropores.

[0027] By adopting the above technical solution, the water diversion rod or water diversion cloth can divert excess water in the soil to the top of the return pipe, so that the water can seep into the return pipe through the seepage micropores to complete the return water collection.

[0028] In the specific technical solution, a water storage chamber and a return water chamber are distributed in the pump station. The water supply pipe is connected to the water storage chamber, and the return water pipe is connected to the return water chamber. A lifting pump is installed on one side of the upper end of the return water chamber. A sprinkler pump connected to the upper pipe and an infiltration irrigation pump connected to the lower pipe are also installed in the water storage chamber. An infiltration irrigation valve is also installed at one end of the lower pipe located in the water storage chamber.

[0029] By adopting the above technical solution, the sprinkler pump is used to pump the water in the water storage chamber into the upper pipeline, the seepage pump is used to pump the water in the water storage chamber into the lower pipeline under high pressure, and the seepage valve is used to drain the water in the water storage chamber into the lower pipeline under static pressure.

[0030] In a specific technical solution, the water supply pipe and the return pipe are both distributed in an inclined manner, wherein the end of the water supply pipe adjacent to the pumping station is higher, while the end of the return pipe adjacent to the pumping station is lower.

[0031] By adopting the above technical solution, the water supply pipeline can lead out the water in the pumping station more efficiently, and the return pipe can introduce the collected return water into the pumping station more efficiently.

[0032] In a specific technical solution, a water flow sensor is installed in one end of the infiltration irrigation branch pipe adjacent to the compression joint.

[0033] By adopting the above technical solution, the water flow sensor can be used to detect the water flow rate of the infiltration irrigation branch pipe. When the infiltration irrigation branch pipe is damaged and the water is lost too quickly, or when the infiltration irrigation branch pipe is blocked and the water seeps out too slowly, the staff can discover and deal with it in time, thereby avoiding drought caused by the damage of the infiltration irrigation branch pipe that causes some crops to be unable to absorb the infiltration irrigation water.

[0034] Compared with the prior art, the present invention has the following beneficial effects:

[0035] The present invention arranges a group of retractable sprinkler irrigation components on the ground and a group of infiltration irrigation components arranged underground. The sprinkler irrigation components can be used to supply water to the germination and seedling stages of crops in the farmland after sowing. When the crop plants enter the seedling stage and sprinkler irrigation operations are not applicable, the infiltration irrigation components can be used to supply water to the seedling stage of crops with longer roots and stems to meet the irrigation water requirements of crops in different growth cycles. The nozzles of the sprinkler irrigation components can be stored under the ground using a storage groove, thereby avoiding affecting the related work of the agricultural harvester or seed drill. At the same time, a return water component is also configured to recycle and reuse excess water from natural precipitation or sprinkler irrigation and infiltration irrigation to achieve a water-saving effect. In addition, a controller and a sensor module are used to enable the control unit to achieve intelligent water-saving irrigation effects based on the detection data of the sensor module. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 This is a structural diagram of an intelligent water-saving automatic irrigation device for farmland according to the present invention;

[0037] Figure 2 This is a schematic diagram of the structural connection between the water delivery pipe and the infiltration irrigation branch pipe in the intelligent water-saving automatic irrigation device for farmland described in the present invention;

[0038] Figure 3 This is a kind of intelligent water-saving automatic irrigation device for farmland described in the present invention. Figure 2 A magnified view of the structure at center A;

[0039] Figure 4 This is a schematic diagram of the internal structure of a sprinkler seat in an intelligent water-saving automatic irrigation device for farmland according to the present invention;

[0040] Figure 5 This is a schematic diagram of the connection relationship between the telescopic rod and the worm gear in the intelligent water-saving automatic irrigation device for farmland described in the present invention;

[0041] Figure 6 This is another schematic diagram of the connection relationship between the telescopic rod and the worm gear in the intelligent water-saving automatic irrigation device for farmland described in the present invention;

[0042] Figure 7 This is a cross-sectional view of the connection structure between the lower pipe and the seepage branch pipe in the intelligent water-saving automatic irrigation device for farmland described in the present invention;

[0043] Figure 8 This is a kind of intelligent water-saving automatic irrigation device for farmland described in the present invention. Figure 7 Horizontal view of

[0044] Figure 9 This is a schematic diagram of the structural distribution of the return rod and return pipe in the intelligent water-saving automatic irrigation device for farmland described in the present invention;

[0045] Figure 10 It is a schematic diagram of the internal structure of a pump station in an intelligent water-saving automatic irrigation device for farmland described in the present invention.

[0046] The following are the descriptions of the reference numerals:

[0047] 1. Water supply pipeline; 101. Upper pipeline; 102. Lower pipeline; 201. Base rod; 202. Telescopic rod; 203. Water seal; 204. Sprinkler; 205. Worm; 206. Drive rod; 207. Control bearing; 208. Control handle; 301. Irrigation branch pipe; 302. Press joint; 303. Press groove; 304. Connecting valve; 305 Spring; 306. Limit groove; 401. Water diversion rod; 402. Return pipe; 5. Pump station; 501. Wind direction and speed sensor; 502. Temperature and humidity sensor; 503. Rainfall sensor; 504. Water storage chamber; 505. Return water chamber; 506. Lifting pump; 507. Sprinkler pump; 508. Irrigation pump; 509. Irrigation valve. DETAILED DESCRIPTION

[0048] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0049] like Figure 1-Figure 3 As shown, an intelligent water-saving automatic irrigation device for farmland in this embodiment includes:

[0050] The water pipeline 1 includes an upper pipeline 101 and a lower pipeline 102, and the water pipeline 1 is buried under the ridge of the field;

[0051] The upper end of the upper pipe 101 is fixedly mounted with a plurality of retractable sprinkler seats, which are composed of a base rod 201, a telescopic rod 202 and a nozzle 204. A water cavity is provided in the base rod 201, which is connected to the upper water pipe. A tooth groove is provided on the periphery of the telescopic rod 202. The telescopic rod 202 passes through the water cavity and engages with the base rod 201. A water seal 203 is installed at the lower end of the telescopic rod 202. The nozzle 204 is installed at the upper end of the telescopic rod 202. The water in the upper pipe 101 can enter the water cavity under the action of its water pressure and enter the nozzle 204 through the telescopic rod 202 to complete the sprinkler operation through the nozzle 204. 202 can rotate based on the base rod 201, and use its meshing action to achieve up and down displacement adjustment, thereby driving the sprinkler head 204 to make corresponding height adjustment. As the crops in the farmland grow along the growth cycle, the height of the plants will continue to grow, and the sprinkler head 204 can be adjusted to a suitable sprinkler height according to the growth height of the crops to avoid the taller crop plants from blocking the sprinkler range. The sprinkler irrigation here is used for the germination and seedling stage of plants after sowing in the farmland. When the plants grow taller and exceed the maximum extension length of the telescopic rod 202, and affect the spraying range of the sprinkler head 204, sprinkler irrigation is not suitable.

[0052] In one embodiment, Figure 4-Figure 5 As shown, in order to facilitate the height adjustment of the telescopic rod 202 and the nozzle 204, a worm 205 is provided that passes through the base rod 201 and meshes with the telescopic rod 202. The worm 205 is driven by a motor to rotate, so that the worm 205 can use the meshing action to drive the telescopic rod 202 to perform corresponding rotational movement, thereby achieving efficient and convenient height adjustment of the telescopic rod 202 and the nozzle 204. At the same time, a protective sleeve is provided on the periphery of the worm 205 to prevent the worm 205 from contacting the soil, thereby ensuring the rotation flexibility and usage stability of the worm 205.

[0053] In another embodiment, Figure 6 As shown, the difference from the above embodiment is that the worm 205 passes through the base rod 201 and is engaged with the telescopic rod 202 through the transmission rod 206. The outer sleeve of the transmission rod 206 is provided with a control bearing 207. The upper end of the control bearing 207 is connected with a control handle 208. The control handle 208 extends to the ground surface. The power of the worm 205 will be indirectly transmitted to the telescopic rod 202 through the transmission rod 206. The staff can drive the control bearing 207 and the transmission rod 206 to move by the control handle 208, and hold the control rod to release the engagement relationship between the transmission rod 206 and the worm 205 or the telescopic rod 202, thereby disconnecting its transmission effect. Therefore, the staff can control part of the sprinkler seat to intermittently participate in the transmission according to actual needs, and can manually control the specific height position of the telescopic rod 202 and the sprinkler head 204, thereby improving the flexibility of the sprinkler head 204 in sprinkling irrigation.

[0054] In addition, if Figure 1 、 Figure 5 and Figure 6 As shown, the top of the base rod 201 is flush with the ground surface, and a groove for accommodating the sprinkler head 204 is provided at the upper end of the base rod 201. The sprinkler head 204 has a high water spraying area and a low water spraying area; the high water spraying area can spray the sprayed water at an elevation angle to a higher and farther sprinkler range, and the low water spraying area can spray the water in a sprinkler range closer to the sprinkler head 204, thereby achieving a more uniform sprinkler irrigation effect. In addition, when the sprinkler head 204 is displaced downward into the groove through the telescopic rod 202, the low water spraying area can use the impact force of the water flow to flush out the soil flowing into the groove, thereby achieving a cleaning effect on the groove and ensuring the smooth flow of the spray hole of the sprinkler head 204.

[0055] like Figure 2 、 Figure 7 and Figure 8 As shown, multiple irrigation branch pipes 301 are detachably plugged into both side walls of the lower pipe 102, and the irrigation branch pipes 301 are symmetrically distributed. The connection ends of the irrigation branch pipes 301 and the lower pipe 102 are formed with compression joints 302, and compression grooves 303 are provided at the connection between the lower pipe 102 and the compression joints 302. The irrigation branch pipes 301 are connected to the lower pipe 102 through a connecting valve 304, and the connecting valve 304 is connected to the compression groove 303 through a spring 305. A limiting groove 306 is provided in the lower pipe 102 at a position corresponding to the connecting valve 304. Water seepage micropores are provided on the upper end and both side walls of the irrigation branch pipes 301. The irrigation branch pipes 301 are connected to the lower pipe 102 through a connecting valve 304. Inserting the crimping joint 302 into the crimping groove 303 can press the connecting valve 304 downward, thereby opening it, allowing the water in the lower pipe 102 to flow into the infiltration irrigation branch pipe 301, and utilize the seepage micropores on the upper end and both side walls of the infiltration irrigation branch pipe 301 to infiltrate the surrounding soil for irrigation. The filling depth of the infiltration irrigation branch pipe here needs to avoid the operating depth of tilling the farmland, and can be used for the seedling stage of crop plants in the farmland, so that the crops have longer roots and stems that can penetrate deep into the soil to absorb water; when the crop plants grow taller and sprinkler irrigation is not suitable, infiltration irrigation can be enabled to meet the water demand of crop growth and effectively reduce water consumption.

[0056] The combination of the above-mentioned sprinkler irrigation structure and infiltration irrigation structure can meet the growth needs of crops at different stages of the growth cycle, and can effectively reduce unnecessary waste of water resources to achieve water-saving effects. In addition, the retractable nozzle 204 of the sprinkler irrigation structure can be retracted into the groove through the telescopic rod 202 when the crops are mature or not in use, so as to avoid the nozzle 204 being above the ground, thereby avoiding affecting the related work of the agricultural harvester or seeder.

[0057] like Figure 1 and Figure 9As shown, in low-lying areas such as depressions where water is easily accumulated due to heavy rainfall, or in high-lying areas where irrigation or rainfall water is easily lost and it is difficult to dig wells to obtain water, a return water component can be laid out in the farmland during deep plowing operations, including a water diversion rod 401 or a water diversion cloth arranged obliquely, and a return water pipe 402 for drainage and recovery. Both end side walls of the return water pipe 402 are formed with a lap joint, the lower end of the water diversion rod 401 or the water diversion cloth is lapped on the lap joint, and the return water pipe 402 is provided with a water seepage micropore water diversion rod 401 or the water diversion cloth on the upper half above the lap joint. The inclined lower end of the water diversion cloth is overlapped on the return pipe 402, wherein the water diversion rod 401 can adopt a rod-shaped structure with good water diversion effect such as carbon fiber material, cotton material, sponge material, porous ceramic material, etc. to absorb excess water in the surrounding soil, and guide it to flow into the return pipe 402, and collect it into the return pipe 402 through the seepage micropores. The water diversion cloth can use water-blocking materials such as water-retaining cloth to divert the water seeping downward from the upper soil into the return pipe 402, and collect it into the return pipe 402 through the seepage micropores, and use the return pipe 402 to recycle and reuse the water to achieve a water-saving effect.

[0058] In this embodiment, the water diversion rod 401 or the water diversion cloth can effectively prevent the water from naturally flowing into the farmland area with low terrain and easy access to groundwater. For example, in the farmland with high terrain, in natural rainfall weather, the water diversion rod 401 or the water diversion cloth can guide and recover the excess seepage water to avoid loss.

[0059] The water diversion rod 401 or water diversion cloth here can be arranged under the infiltration irrigation branch pipe 301, and the excess water that seeps downward after the infiltration irrigation branch pipe 301 is used can be guided back to complete the collection and avoid water loss. The return pipe 402 can be buried under the water supply pipeline 1 as the water supply pipeline 1 is excavated, thereby reducing the work of excavation and landfill.

[0060] In order to meet the water pressure requirements of sprinkler irrigation and infiltration irrigation operations, such as Figure 1 and Figure 10As shown, a pump station 5 is provided at one end of the water supply pipeline 1, and the water supply pipeline 1 and the return pipe 402 are both inclined, wherein the end of the water supply pipeline 1 adjacent to the pump station 5 is high, and the end of the return pipe 402 adjacent to the pump station 5 is low, and a water storage chamber 504 and a return water chamber 505 are distributed in the pump station 5, the water supply pipeline 1 is connected to the water storage chamber 504, the return pipe 402 is connected to the return water chamber 505, a lifting pump 506 is installed on one side of the upper end of the return water chamber 505, and a sprinkler pump 507 connected to the upper pipe 101 and a sprinkler pump 507 connected to the lower pipe are also installed in the water storage chamber 504. 102 of the seepage irrigation pump 508, the lower pipe 102 is located at one end of the water storage chamber 504 is also installed with a seepage irrigation valve 509; wherein, the end of the water delivery pipe 1 adjacent to the pump station 5 is high, which is conducive to the outflow of water, and the end of the return pipe 402 adjacent to the pump station 5 is low, which is conducive to the backflow of water. First, the pump station 5 can use its own pump to extract groundwater and flow it into the water storage chamber 504 for collection. During the sprinkler irrigation operation, the sprinkler pump 507 can pump the water accumulated in the water storage chamber 504 into the upper pipe 101, and promote the upper pipe 101 to maintain a certain A certain water pressure is applied to allow the water to enter the base rod 201 and the telescopic rod 202, and to be sprayed outward by the nozzle 204 to complete the sprinkler irrigation operation. During this period, the worm 205 can be driven by the motor to rotate, thereby driving the telescopic rod 202 to perform telescopic displacement movement by utilizing the meshing effect with the base rod 201, and driving the nozzle 204 to achieve a height adjustment effect. In the infiltration irrigation operation, there are two operation modes. One is high-pressure infiltration irrigation, which uses the infiltration irrigation pump 508 to pump the water accumulated in the water storage chamber 504 into the lower pipe 102, and promote the lower pipe 102 to move downward. A certain water pressure is maintained in the pipe 102, so that the water is pressurized and flows into the infiltration branch pipe 301, and uses its seepage micropores to efficiently seep into the surrounding soil, thereby achieving an efficient infiltration irrigation effect. The second method is static pressure infiltration irrigation, which is to open the infiltration irrigation valve 509, so that the water in the water storage chamber 504 can enter the lower pipe 102 under natural pressure and flow into the infiltration branch pipe 301. It uses its seepage micropores to statically seep into the surrounding soil, which can reduce the water consumption of infiltration irrigation while saving energy, thereby increasing its sustainability and allowing for long-term continuous infiltration irrigation operations.

[0061] During the rainy season with heavy rainfall, and during sprinkler irrigation or infiltration irrigation operations, the excess water that seeps downward can be diverted into the return pipe 402 under the action of the water diversion rod 401 or the water diversion cloth, and returned to the return water chamber 505 of the pump station 5 through the return pipe 402. When the amount of returned water is large, the lifting pump 506 can be used to pump the water in the return water chamber 505 to the water storage chamber 504 to complete the reuse of the returned water.

[0062] In order to further improve the effect of water-saving irrigation, Figure 1As shown, a wind direction and speed sensor 501, a temperature and humidity sensor 502, and a rainfall sensor 503 are installed on the pump station 5. A control unit and a motor for driving the worm 205 are installed in the pump station 5. The control unit controls its water pumping operation and motor operation based on the detection data of the wind direction and speed sensor 501, the temperature and humidity sensor 502, and the rainfall sensor 503. Among them, the wind direction and speed sensor 501 is used to detect the real-time wind direction and speed of the farmland. For example, in windy weather, the water sprayed by the sprinkler irrigation will inevitably cause a large amount of loss due to the blowing of the wind direction and airflow. At the same time, the moisture in the surface soil will inevitably evaporate and lose quickly due to the airflow. Therefore, the control unit can detect the wind direction and speed based on the wind direction and speed sensor 501. The real-time airflow of the farmland can be measured, so as to avoid sprinkler irrigation operations in windy weather and achieve the purpose of water saving. The temperature and humidity sensor 502 can detect the temperature and humidity in the air of the farmland. For example, in hot weather, the moisture in the surface soil will inevitably evaporate and lose quickly due to the high temperature. At the same time, in humid weather, the surface soil and crops can absorb moisture from the natural weather, thereby reducing the demand for water for artificial irrigation. Therefore, the control unit can avoid sprinkler irrigation operations in hot or humid weather and achieve the purpose of water saving. The rainfall sensor 503 is used to detect the rainfall in natural weather. When the rainfall is large, the artificial irrigation operation can be stopped to achieve the purpose of water saving.

[0063] A water flow sensor is installed in one end of the infiltration irrigation branch pipe 301 adjacent to the pressure joint 302. The water flow sensor can be a micro Hall effect water flow sensor of model MH-S650, which is used to monitor the water flow entering the infiltration irrigation branch pipe 301 and determine the irrigation effect of the infiltration irrigation branch pipe 301. When the infiltration irrigation branch pipe 301 is damaged and water is lost too quickly, or when the infiltration irrigation branch pipe 301 is blocked and water seeps out too slowly, the staff can discover and deal with it in time, thereby avoiding drought caused by the damage of the infiltration irrigation branch pipe 301 causing some crops to be unable to absorb the irrigation water.

[0064] In the embodiments of the above-mentioned sprinkler irrigation structure and infiltration irrigation structure, plant fibers such as wood fiber, herb fiber, and organic matter such as straw and rice husk can be added to the farmland soil, which can not only improve the moisture retention of the soil, but also increase the soil fertility. At the same time, the infiltration irrigation water can further penetrate upward through the fibers here, thereby avoiding the depth of farmland turning operations and still providing the irrigation effect of infiltration irrigation for crops with short roots and stems.

[0065] The embodiment of the present invention solves the problem that the sprinkler irrigation structure and the seepage irrigation structure cannot be applied to farmland operations alone in the prior art by providing a smart water-saving automatic irrigation device for farmland that combines sprinkler irrigation and seepage irrigation and cooperates with a water return component for water recovery and reuse, and is also equipped with a control unit and a sensor module. The overall idea of ​​this embodiment to solve the above problem is that the present invention sets a group of retractable sprinkler irrigation components on the ground and a group of seepage irrigation components set underground. First, the sprinkler irrigation components can be used to supply water to the budding and seedling stages of crops in the farmland after sowing. When the crop plants enter the seedling stage When sprinkler irrigation is not applicable, the infiltration irrigation component can be used to supply water to the crops with longer roots in the seedling stage to meet the irrigation water requirements of the crops in different growth cycles, and the nozzle 204 of the sprinkler irrigation component can be stored under the ground using the storage groove, thereby avoiding affecting the related work of the agricultural harvester or seed drill. At the same time, a return water component is also configured to recycle and reuse excess water from natural precipitation or sprinkler irrigation to achieve water-saving effects. In addition, a controller and a sensor module are used to enable the control unit to achieve intelligent water-saving irrigation effects based on the detection data of the sensor module.

[0066] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be subsequently positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device may also be positioned in other different ways, and the spatially relative descriptions used herein are interpreted accordingly.

[0067] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0068] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can, for example, be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0069] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An intelligent water-saving automatic irrigation device for farmland, characterized in that: include: A water pipeline, comprising an upper pipeline and a lower pipeline, is buried under the ridge of the field; The sprinkler assembly includes a plurality of retractable sprinkler seats fixedly connected to the upper pipe, a sprinkler head fixedly mounted on the sprinkler seat, and a worm screw penetrating the retractable sprinkler seat for driving the sprinkler seat to retract and adjust; The infiltration irrigation assembly comprises an infiltration irrigation branch pipe detachably connected to the lower pipeline and a connecting valve located at the connection between the infiltration irrigation branch pipe and the lower pipeline; The return water assembly includes a water diversion rod or water diversion cloth obliquely arranged below the infiltration irrigation branch pipe, and a return water pipe located below the water supply pipe, wherein the oblique lower end of the water diversion rod or water diversion cloth is overlapped on the return water pipe; The system also includes a pump station, to which a water supply pipe and a return pipe are connected, and a wind direction and speed sensor, a temperature and humidity sensor, and a rainfall sensor are installed on the pump station. A control unit and a motor for driving a worm are installed in the pump station, and the control unit controls its pumping operation and motor operation based on detection data from the wind direction and speed sensor, the temperature and humidity sensor, and the rainfall sensor; The retractable sprinkler seat includes a base rod and a telescopic rod. A water cavity is opened in the base rod, and the water cavity is connected to the water pipe. A tooth groove is opened on the periphery of the telescopic rod. The telescopic rod passes through the water cavity and engages with the base rod. A water seal is installed at the lower end of the telescopic rod, and a sprinkler head is installed at the upper end of the telescopic rod. A protective sleeve is connected between the base rods, and the worm is located in the protective sleeve. The worm passes through the base rod and is engaged with the telescopic rod through the transmission rod. A control bearing is provided on the outer sleeve of the transmission rod. The upper end of the control bearing is connected to a control handle, which extends to the ground surface. The top of the base rod is flush with the ground surface. A groove for accommodating a sprinkler head is provided at the upper end of the base rod. The sprinkler head has a high spray area and a low spray area. A compression joint is formed at the connecting end of the infiltration irrigation branch pipe and the lower pipeline, a compression groove is opened at the connection between the lower pipeline and the compression joint, the connecting valve is connected to the compression groove through a spring, and a limiting groove is opened in the lower pipeline at the corresponding position of the connecting valve, and water seepage micropores are opened on the upper end and both side walls of the infiltration irrigation branch pipe.

2. The intelligent water-saving automatic irrigation device for farmland according to claim 1 is characterized in that: Both ends of the return pipe are formed with overlapping platforms on the side walls, the water guide rod or the water guide cloth is overlapped on the overlapping platforms, and the upper half of the return pipe above the overlapping platforms is provided with water seepage microholes.

3. The intelligent water-saving automatic irrigation device for farmland according to claim 1 is characterized in that: There are water storage chambers and return water chambers in the pump station. The water supply pipe is connected to the water storage chamber, and the return water pipe is connected to the return water chamber. A lifting pump is installed on one side of the upper end of the return water chamber. The water storage chamber is also equipped with a sprinkler pump connected to the upper pipe and an infiltration irrigation pump connected to the lower pipe. An infiltration irrigation valve is also installed at one end of the lower pipe located in the water storage chamber.

4. The intelligent water-saving automatic irrigation device for farmland according to claim 3 is characterized by: The water supply pipe and the return pipe are both distributed in an inclined manner, where the end of the water supply pipe adjacent to the pumping station is higher, while the end of the return pipe adjacent to the pumping station is lower.

5. The intelligent water-saving automatic irrigation device for farmland according to claim 4 is characterized in that: A water flow sensor is installed in one end of the infiltration irrigation branch pipe adjacent to the compression joint.

Images