Intelligent water-saving automatic irrigation device for farmland

Abstract

The invention discloses an intelligent water-saving automatic irrigation device for a farmland. The device comprises a water conveying pipeline, a sprinkling irrigation assembly and an infiltrating irrigation assembly, the telescopic spray irrigation assembly is arranged to be matched with the infiltrating irrigation assembly, water can be supplied to the germination stage and the seedling stage after crops in a farmland are sown through the spray irrigation assembly, and when crop plants enter the seedling stage, water can be supplied to the crops with long rhizomes through the infiltrating irrigation assembly in the seedling stage; the spray irrigation assembly is arranged on the ground to meet irrigation water required by crops in different growth periods, a spray head of the spray irrigation assembly can be stored under the ground surface through the storage groove, influences on related work of an agricultural harvester or a seeder are avoided, meanwhile, the water return assembly is further arranged to be used for recycling redundant water generated by natural rainfall or spray irrigation and infiltrating irrigation, and the water return assembly is convenient to use. In addition, by means of the controller and the sensor module, the control unit can achieve the intelligent water-saving irrigation effect on the basis of detection data of the sensor module.

Description

Technical Field

[0001] The invention relates to the field of farmland irrigation, and in particular to an intelligent water-saving automatic irrigation device for farmland. Background Art Farmland irrigation mainly refers to irrigation operations in agricultural farming areas. Farmland irrigation methods can generally be divided into traditional surface irrigation, ordinary sprinkler irrigation and micro-irrigation.

[0002] Traditional surface irrigation includes furrow irrigation, furrow irrigation, flooding and overtopping irrigation. However, these irrigation methods often consume a lot of water and have low water utilization efficiency. They are very unreasonable agricultural irrigation methods. In addition, it is not easy to draw groundwater for traditional surface irrigation in high-lying arid areas such as mountainous areas and plateaus. Ordinary sprinkler irrigation technology is a common irrigation method in China's agricultural production. Sprinkler irrigation is an irrigation method that uses a water pump and a pipe system or a natural water source to spray water with a certain pressure into the air, which is dispersed into small droplets or forms mist and falls on plants and the ground. However, the water utilization efficiency of ordinary sprinkler irrigation technology is not high. 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 rate than traditional irrigation modes. Of course, there are also some disadvantages. Among the above 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 range, the laying cost is high, and the crops will grow. After the growth, the taller crop plants will largely block the sprinkler irrigation range. In order to avoid blocking the sprinkler head, the sprinkler head can be erected in the air to solve the defect of blocking the sprinkler head. However, due to the influence of the laying of sprinkler and drip irrigation pipelines and the erection of sprinkler heads, it is not convenient to mechanically harvest the crops after maturity. 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 ideal, it is only suitable for environments where trees such as fruit trees and gardens are not often transplanted. Crops in farmland are often sown and harvested, and the surface soil needs to be turned over. In order to avoid the influence of the underground buried pipes of infiltration irrigation on the soil turning work, the depth of burial needs to be deep to avoid the soil turning depth. The water of infiltration irrigation will seep downward due to the influence of gravity. When crops are in the post-sowing and germination stage, their roots and stems grow at a shallow depth and cannot touch the water of infiltration after absorbing the deeply buried pipes. As a result, the underground buried pipe operation method of infiltration irrigation is not applicable.

[0003] It can be seen that the irrigation methods such as sprinkler irrigation, drip irrigation, and infiltration irrigation in the prior art cannot be applied solely to farmland operations. Summary of the invention

[0004] 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.

[0005] The present invention is implemented through the following technical scheme: a water delivery pipeline, including an upper pipeline and a lower pipeline, the water delivery pipeline is buried under the field ridge; 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 adjust the telescopic movement; 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 water return assembly comprises a water diversion rod or a water diversion cloth obliquely arranged below the infiltration irrigation branch pipe, and a water return pipe located below the water delivery pipeline, wherein the oblique lower end of the water diversion rod or the water diversion cloth is overlapped on the water return pipe; It also includes a pump station, and the water supply pipeline and the return pipe are connected to the pump station. The pump station is equipped with a wind direction and speed sensor, a temperature and humidity sensor, and a rainfall sensor. A control unit and a motor for driving the worm gear are installed in the pump station. 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.

[0006] By adopting the above technical scheme, the upper pipeline is used to supply water to the sprinkler irrigation assembly, so that the sprinkler irrigation assembly can meet the water supply required by the germination period and seedling period of crops in the farmland after sowing; the lower pipeline is used to supply water to the infiltration irrigation assembly, so that the infiltration irrigation assembly can meet the water supply required by the crops in the farmland during the seedling period and when the roots and stems of the plants are long; the return water assembly is used to recycle excess water in the soil for the reuse of the water; the control unit can control the pump station to start and stop accordingly based on various sensors, thereby realizing intelligent water-saving irrigation effects.

[0007] In a specific technical solution, 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 supply 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.

[0008] By adopting the above technical solution, the telescopic tube can be telescopically adjusted based on the base rod, thereby driving the sprinkler head to make corresponding height adjustments. At the same time, the design of the water chamber and the water seal enables the water to 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.

[0009] 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.

[0010] 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 that the working state of the worm is stable.

[0011] In a specific technical solution, a protective sleeve is connected between the retractable sprinkler seats, a 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, a control handle is connected to the upper end of the control bearing, and the control handle extends to the ground surface.

[0012] By adopting the above technical solution, the transmission rod can be used as a power transmission component between the worm gear 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, so as to achieve the control effect of manual telescopic adjustment, thereby improving the application flexibility of the telescopic rod.

[0013] 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 spray area and a low spray area.

[0014] By adopting the above technical solution, the base rod can be buried in the soil with its surface exposed above the ground, and the nozzle 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 nozzle. The low water spraying area can first spray the water in the spraying range close to the nozzle to achieve a uniform spraying effect of the nozzle. Secondly, when the nozzle 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 and ensuring the smoothness of the nozzle spray hole.

[0015] In the specific technical scheme, a compression joint is formed at the connecting end of the infiltration 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 branch pipe.

[0016] 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 limiting groove under the action of the spring, thereby closing the lower pipe and preventing the water in the lower pipe from overflowing.

[0017] In a specific technical solution, overlapping platforms are formed on the side walls of both ends of the return pipe, the water guide rod or the water guide cloth is overlapped on the overlapping platforms, and the upper part of the return pipe above the overlapping platforms is provided with water seepage microholes.

[0018] 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 penetrate into the return pipe through the seepage micropores to complete the return water collection.

[0019] In the specific technical scheme, a water storage chamber and a return water chamber are distributed in the pump station, a water supply pipe is connected to the water storage chamber, a 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 pump connected to the lower pipe are also installed in the water storage chamber, and an infiltration irrigation valve is also installed at one end of the lower pipe located in the water storage chamber.

[0020] By adopting the above technical solution, the sprinkler pump is used to pump the water in the water storage chamber into the upper pipe, the infiltration pump is used to pump the water in the water storage chamber into the lower pipe under high pressure, and the infiltration valve is used to drain the water in the water storage chamber into the lower pipe under static pressure.

[0021] 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 high, while the end of the return pipe adjacent to the pumping station is low.

[0022] By adopting the above technical solution, the water delivery 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.

[0023] In a specific technical solution, a water flow sensor is installed in one end of the infiltration irrigation branch pipe adjacent to the crimping joint.

[0024] 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, resulting in too fast water loss or when the infiltration irrigation branch pipe is blocked and water seeps out too slowly, the staff can discover and deal with it in time, thereby avoiding drought caused by the infiltration irrigation branch pipe being damaged and some crops being unable to absorb the irrigation water.

[0025] Compared with the prior art, the present invention has the following beneficial effects: 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 stage and seedling stage of crops in the farmland after sowing. When the crop plants enter the seedling stage and the sprinkler irrigation operation is 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 required by the crops in different growth cycles. The nozzle of the sprinkler irrigation component can be stored under the ground surface by using the storage groove, so as to avoid affecting the related work of the agricultural harvester or 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 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. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of an intelligent water-saving automatic irrigation device for farmland according to the present invention; Figure 2 It is a schematic diagram of the structural connection between the water delivery pipeline and the infiltration irrigation branch pipe in the intelligent water-saving automatic irrigation device for farmland described in the present invention; 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; Figure 4 It is a schematic diagram of the internal structure of a sprinkler seat in a farmland intelligent water-saving automatic irrigation device according to the present invention; Figure 5 It is a schematic diagram of a connection relationship between a telescopic rod and a worm gear in a farmland intelligent water-saving automatic irrigation device according to the present invention; Figure 6 It is another schematic diagram of the connection relationship between the telescopic rod and the worm in the intelligent water-saving automatic irrigation device for farmland described in the present invention; Figure 7 It is a cross-sectional view of the connection structure between the lower pipeline and the seepage branch pipe in the intelligent water-saving automatic irrigation device for farmland described in the present invention; 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 Fig. 9 It is a schematic diagram of the structural distribution of a water return rod and a water return pipe in a farmland intelligent water-saving automatic irrigation device according to the present invention; Fig.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.

[0027] The following are the descriptions of the reference numerals: 1. Water delivery pipeline; 101. Upper pipeline; 102. Lower pipeline; 201. Base rod; 202. Telescopic rod; 203. Water seal; 204. Sprinkler; 205. Worm; 206. Transmission rod; 207. Control bearing; 208. Control handle; 301. Seepage irrigation branch pipe; 302. Press joint; 303. Press joint 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 chamber; 506. Lifting pump; 507. Sprinkler pump; 508. Seepage irrigation pump; 509. Seepage irrigation valve. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with 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.

[0029] like Figure 1-Figure 3 As shown, an intelligent water-saving automatic irrigation device for farmland in this embodiment includes: The water pipeline 1 comprises an upper pipeline 101 and a lower pipeline 102, and the water pipeline 1 is buried under the ridge of the field; A plurality of retractable sprinkler seats are fixedly installed at the upper end of the upper pipe 101. The retractable sprinkler seats are composed of a base rod 201, a telescopic rod 202 and a sprinkler head 204. A water cavity is provided in the base rod 201, and the water cavity 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 meshes with the base rod 201. A water seal 203 is installed at the lower end of the telescopic rod 202. The sprinkler head 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 sprinkler head 204 through the telescopic rod 202, and the sprinkler operation is completed through the sprinkler head 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 adjustments. When the crops in the farmland grow in the growth cycle, the plant height 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 higher 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.

[0030] In one embodiment, Figure 4-Figure 5As shown, in order to facilitate the height adjustment of the telescopic rod 202 and the nozzle 204, a worm 205 is provided which penetrates the base rod 201 and meshes with the telescopic rod 202, and the motor drives the worm 205 to rotate, so that the worm 205 can drive the telescopic rod 202 to perform corresponding rotational movement by meshing, thereby realizing 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, so that the worm 205 can avoid contact with the soil, thereby ensuring the rotation flexibility and use stability of the worm 205; 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 meshes 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, which 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 through the control handle 208, and hold the control rod to release the meshing 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.

[0031] 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 spraying area and a low spraying area; the high spraying area can spray the sprayed water at an elevation angle to a higher and farther spraying range, and the low spraying area can spray the water in a spraying 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 spraying area can flush out the soil flowing into the groove by the impact force of the water flow, thereby achieving a cleaning effect on the groove and ensuring the smoothness of the spray hole of the sprinkler head 204.

[0032] like Figure 2 , Figure 7 and Figure 8As shown, multiple infiltration branch pipes 301 are detachably plugged on both side walls of the lower pipeline 102, and the infiltration branch pipes 301 are symmetrically distributed. The connection ends of the infiltration branch pipes 301 and the lower pipeline 102 are formed with compression joints 302, and the connection between the lower pipeline 102 and the compression joints 302 is provided with compression grooves 303. The infiltration branch pipes 301 are connected to the lower pipeline 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 pipeline 102 at a position corresponding to the connecting valve 304, and water seepage micropores are provided on the upper end and both side walls of the infiltration branch pipes 301; the infiltration branch pipes 301 are connected to the lower pipeline 102 through a connecting valve 304. Inserting the crimping joint 302 into the crimping groove 303 can press the connecting valve 304 to move downward, thereby opening it, so that the water in the lower pipe 102 can flow into the infiltration branch pipe 301, and use the infiltration micropores on the upper end and both side walls of the infiltration branch pipe 301 to infiltrate the surrounding soil for irrigation. The filling depth of the infiltration branch pipe here needs to avoid the operating depth of turning the soil in the farmland, and can be used in the seedling stage of crop plants in the farmland, so that the crops have longer roots and stems and can penetrate 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 for crop growth, and it can effectively reduce water consumption.

[0033] The above-mentioned sprinkler irrigation structure and infiltration irrigation structure are combined with each other to 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 drive of the telescopic rod 202 after the crops are mature or not in use, thereby avoiding the nozzle 204 from being higher than the ground surface, thereby avoiding affecting the related work of the agricultural harvester or seeder.

[0034] like Figure 1 and Fig. 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 for water, a water return assembly can be laid out in the farmland during deep plowing and turning over the soil, including a water diversion rod 401 or a water diversion cloth arranged obliquely, and a water return pipe 402 for drainage and recovery. Both end walls of the water return pipe 402 are formed with overlapping platforms, the lower ends of the water diversion rod 401 or the water diversion cloth are overlapped on the overlapping platforms, and the water return pipe 402 is provided with water seepage micropores on the upper half above the overlapping platforms. 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 moisture 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 adopt water-blocking materials such as water-retaining cloth to divert the moisture 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, thereby achieving a water-saving effect.

[0035] 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.

[0036] The water diversion rod 401 or water diversion cloth here can be arranged under the infiltration branch pipe 301, and the excess water that seeps downward after the infiltration branch pipe 301 is used for infiltration irrigation can be guided back to complete the collection and avoid water loss. The return pipe 402 can be buried under the water pipeline 1 as the water pipeline 1 is excavated, thereby reducing the work of excavation and landfill.

[0037] In order to meet the water pressure requirements of sprinkler irrigation and infiltration irrigation, such as Figure 1 and Fig.10As shown, a pump station 5 is arranged at one end of the water delivery pipeline 1, and the water delivery pipeline 1 and the return pipe 402 are both inclinedly distributed, wherein the end of the water delivery 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 delivery 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 508 connected to the lower pipe 101 are also installed in the water storage chamber 504. 102 of the seepage pump 508, the lower pipe 102 is located in the water storage chamber 504 of the end is also installed with a seepage 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 The water can enter the base rod 201 and the telescopic rod 202 by a certain water pressure, and 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 between the telescopic rod 202 and 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 of which 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 promotes the lower pipe 102 to move upward. A certain water pressure is maintained in the pipe 102, so that the water is pressed into the infiltration branch pipe 301, and uses its seepage micropores to efficiently infiltrate into the surrounding soil, thereby achieving an efficient infiltration irrigation effect. The second is static pressure infiltration irrigation, which is to open the infiltration 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, and use its seepage micropores to statically infiltrate into the surrounding soil. The water consumption of infiltration irrigation can be reduced while saving energy, so as to increase its sustainability and enable continuous infiltration irrigation operations for a long time.

[0038] In rainy seasons with heavy rainfall, and during sprinkler or infiltration irrigation operations, excess water seeping downward can be diverted into the return pipe 402 by 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, thereby completing the reuse of the returned water.

[0039] 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 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; wherein 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 in windy weather and achieve the purpose of water saving. The temperature and humidity sensor 502 can detect the temperature and humidity in the farmland air. For example, in hot weather, the moisture in the surface soil will inevitably evaporate and be lost quickly due to the high temperature. At the same time, in humid weather, the surface soil and crops can absorb moisture from natural weather, thereby reducing the demand for moisture for artificial irrigation. Therefore, the control unit can avoid sprinkler irrigation 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.

[0040] A water flow sensor is installed in one end of the infiltration irrigation branch pipe 301 adjacent to the crimping joint 302. The water flow sensor can be a micro Hall water flow sensor of model MH-S650, which is used to monitor the water flow entering the infiltration irrigation branch pipe 301. The infiltration irrigation effect of the infiltration irrigation branch pipe 301 can be judged. When the infiltration irrigation branch pipe 301 is damaged and the water is lost too quickly or the infiltration irrigation branch pipe 301 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 301 causing some crops to be unable to absorb the irrigation water.

[0041] In the embodiments of the above-mentioned sprinkler irrigation structure and infiltration irrigation structure, plant fibers such as wood fibers, herbaceous fibers, and organic matter such as straw and rice husks 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.

[0042] The embodiment of the present invention provides a farmland intelligent water-saving automatic irrigation device that combines sprinkler irrigation and seepage irrigation and cooperates with a water return component for water recovery and reuse, and is equipped with a control unit and a sensor module, thereby solving the problem that the sprinkler irrigation structure and the seepage irrigation structure in the prior art cannot be used alone in farmland operations. 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 germination stage and seedling stage of crops in the farmland after sowing, and 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 seedling stage of crops with longer roots and stems to meet the irrigation water requirements of crops in different growth cycles, and the nozzle 204 of the sprinkler irrigation component can be stored under the ground using the storage groove to avoid affecting the related work of the agricultural harvester or 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 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.

[0043] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. 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 figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" may include both "above" and "below". The device may also be positioned in other different ways, and the spatially relative descriptions used here are interpreted accordingly.

[0044] 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, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0045] 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 be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0046] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be 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 will not be limited to the embodiments shown herein, but rather 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, including an upper pipeline and a lower pipeline, is buried under the field ridge; 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 adjust the telescopic movement; 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 water return assembly comprises a water diversion rod or a water diversion cloth obliquely arranged below the infiltration irrigation branch pipe, and a water return pipe located below the water delivery pipe, wherein the oblique lower end of the water diversion rod or the water diversion cloth is overlapped on the water return pipe; It also includes a pump station, and the water supply pipeline and the return pipe are connected to the pump station. The pump station is equipped with a wind direction and speed sensor, a temperature and humidity sensor, and a rainfall sensor. A control unit and a motor for driving the worm gear are installed in the pump station. 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.

2. The intelligent water-saving automatic irrigation device for farmland according to claim 1 is characterized in that: The telescopic 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 upper 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.

3. The intelligent water-saving automatic irrigation device for farmland according to claim 2 is characterized in that: A protective sleeve is connected between the base rods, a worm is located in the protective sleeve, and the worm penetrates the base rod and is meshed with the telescopic rod.

4. The intelligent water-saving automatic irrigation device for farmland according to claim 2 is characterized in that: A protective sleeve is connected between the base rods, 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, a control handle is connected to the upper end of the control bearing, and the control handle extends to the ground surface.

5. The intelligent water-saving automatic irrigation device for farmland according to claim 3 or 4, characterized in that: The top end 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.

6. The intelligent water-saving automatic irrigation device for farmland according to claim 1 is characterized in that: A compression joint is formed at the connecting end of the infiltration 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 branch pipe.

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

8. The intelligent water-saving automatic irrigation device for farmland according to claim 1 is characterized by: 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. A sprinkler pump connected to the upper pipe and an infiltration 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.

9. The intelligent water-saving automatic irrigation device for farmland according to claim 8 is characterized in that: 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 high, while the end of the return pipe adjacent to the pumping station is low.

10. The intelligent water-saving automatic irrigation device for farmland according to claim 9, characterized in that: A water flow sensor is installed in one end of the infiltration branch pipe adjacent to the compression joint.

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