CN117243090A - Water ration system for agricultural irrigation - Google Patents

Abstract

The invention relates to the technical field of agricultural irrigation, in particular to an agricultural irrigation water quota distribution system, which includes farmland and raised ridges on the farmland. Drip irrigation pipes are installed on the left and right sides of the ridge. The system includes two first temperature sensors. cylinder, the two first temperature-sensing cylinders are filled with temperature-sensing liquid, and the two first temperature-sensing cylinders are inserted into the inside of the left and right slopes of the ridge respectively. The two first temperature-sensing cylinders are The top end of the U-shaped tube is connected with the same U-shaped tube. The inside of the U-shaped tube is slidingly connected with a second piston. The top of the U-shaped tube is fixedly connected with a distribution cylinder. The inside of the distribution tube is slidably connected with a slider. There is a through hole on the inside of the slider. The wetter the soil, the lower its temperature. Through this relationship, the inventor set up an ingenious irrigation water distribution system, so that the irrigation water first flows to the side of the ridge with lower humidity. Carry out slow irrigation compensation, this setting can make the soil moisture on both sides of the ridge close to the same.

Description

An agricultural irrigation water rationing system

Technical field

The invention relates to the technical field of agricultural irrigation, specifically an agricultural irrigation water quota distribution system.

Background technique

Through agricultural production, humans interfere with and utilize the natural ecosystem, forming the most extensive and most vital material cycle and energy conversion process. Water is the necessary material basis for the growth of all crops and the lifeblood of agriculture. Agricultural production mainly uses the chemical energy of water and converts it into organic chemical energy through photosynthesis and respiration of crops, providing humans with the energy they need to survive. Agricultural products and industrial raw materials.

However, in the current field of agricultural production, the irrigation method, irrigation amount, and irrigation time of crops are generally determined based on experience. Due to the variability of the environment, the irrigation effect is not ideal in many cases, and the irrigation water is often excessive. The problem of too much or too little, for example, as shown in Figure 1, for crops produced through ridge 2 cultivation, because of the bulge of ridge 2, it is easy to produce left and right sides of ridge 2, that is, left The big environmental difference between Slope 3 and Right Slope 4 is mainly reflected in the difference in moisture. Because plant roots grow diffusely, the difference in moisture will affect the growth direction of crop roots and the water absorption effect, making it impossible to achieve sufficient nutrition in the ridge. Absorption, specifically, for example, when left slope 3 or right slope 4 faces south, due to the increase in solar radiation, the evaporation amount on the south-facing side of ridge 2 will be greater, resulting in less soil moisture on the south-facing side, such as When left slope 3 or right slope 4 is on the windward side for a long time, due to the large air flow, the evaporation amount on the windward side of ridge 2 will be greater, which will also lead to lower soil moisture on the windward side.

Regarding the above problems, it is difficult for the existing irrigation system to achieve a more accurate irrigation amount, nor can it compensate for the side with lower soil moisture. In the long run, it will not only cause a waste of water resources (the water source is more concentrated, but if the soil is too wet, there will be Seepage), will also affect the growth of plants.

Therefore, an agricultural irrigation water quota distribution system is proposed to solve the above problems.

Contents of the invention

The purpose of the present invention is to provide an agricultural irrigation water quota distribution system to solve the problem in the above-mentioned background technology that "the variability of the environment causes the irrigation effect to be unsatisfactory in many cases, and the irrigation water often appears to be too much or too little." The problem is that for crops produced through ridge cultivation, due to the ridge protrusion, it is easy to produce a large difference in the environment on the left and right sides of the ridge, that is, the left slope and the right slope, due to the influence of light or windward side, which is mainly reflected in the difference in moisture. , because the plant roots grow diffusely, the difference in water content will affect the growth direction of the crop root system and the water absorption effect, making it impossible to fully absorb nutrients in the ridge. The existing irrigation system is difficult to achieve a more accurate irrigation amount, and cannot Compensating for the side with lower soil moisture will not only cause a waste of water in the long run, but also affect the growth of plants."

In order to achieve the above object, the present invention provides the following technical solution: an agricultural irrigation water quota distribution system, including farmland and raised ridges on the farmland, with drip irrigation pipes running through the left and right sides of the ridge. The system includes two first Temperature sensing cylinder, the two first temperature sensing cylinders are filled with temperature sensing liquid, the two first temperature sensing cylinders are inserted into the inside of the left slope and right slope of the ridge respectively, the two first temperature sensing cylinders are The top of the barrel is connected to the same U-shaped tube, the inside of the U-shaped tube is slidingly connected to a second piston, and the top of the U-shaped tube is fixedly connected to a distribution tube;

A slide block is slidably connected to the inner side of the distribution cylinder. A through hole is provided on the inner side of the slide block. A horizontal portion is provided at the center of the through hole. A wedge-shaped portion is provided in the extending direction of the through hole toward the outside of the slide block. The horizontal portion is connected to the sliding block. A partition is provided between the wedge-shaped parts, the slider can slide in the direction of the second piston, a water inlet pipe is provided at the front end of the distribution barrel, and the first water supply pipe and the second water supply pipe are connected at the rear end of the distribution barrel. The first water supply pipe and the second water supply pipe are respectively connected with the drip irrigation pipes on the left and right sides of the ridge.

As an optional solution of the agricultural irrigation water quota distribution system according to the present invention, when the slider is in the central position of the distribution cylinder, the horizontal part of the through hole can be connected to the first water supply pipe and the second water supply pipe at the same time. Through, when the slider is in the leftmost position of the distribution cylinder, the horizontal part of the through hole is connected to the first water supply pipe, and the wedge-shaped part on the right side is connected to the second water supply pipe. When the slider is in the rightmost position of the distribution cylinder, the left The wedge-shaped part is connected with the first water supply pipe, and the horizontal part of the through hole is connected with the second water supply pipe.

Generally speaking, under the same ambient temperature, the wetter the soil, the lower its temperature will be. Through this relationship, the inventor set up an ingenious irrigation water distribution system, so that the irrigation water first flows to the lower humidity area on the ridge. Slow irrigation compensation is carried out on both sides of the ridge. When the humidity on both sides of the ridge is close to the same, irrigation is realized on both sides at the same time. This setting can make the soil moisture on both sides of the ridge close to the same, save water resources and ensure the stability of plant growth. sex;

In the present invention, two first temperature-sensing tubes are arranged on both sides of the ridge. The first temperature-sensing tubes are filled with temperature-sensing liquid. The two first temperature-sensing tubes are inserted into the insides of the left and right slopes of the ridge respectively. The temperature on both sides of the ridge is sensed by the first temperature-sensing cylinder to sense the humidity on both sides of the ridge. The tops of the two first temperature-sensing cylinders are connected with the same U-shaped tube, and the inside of the U-shaped tube is slidingly connected with a second piston. When a temperature difference occurs on both sides of the ridge, that is, a humidity difference occurs on both sides of the surface ridge, the temperature-sensing liquid in the first temperature-sensing cylinder expands to different degrees at different temperatures. The temperature-sensing liquid in the first temperature-sensing cylinder on the "high temperature" side The degree of expansion is greater than that of the first temperature sensing cylinder on the "low temperature" side. The pressure in the first temperature sensing cylinder on the "high temperature" side is higher than that on the "low temperature" side. The second piston will move to the "low temperature" side accordingly. movement, the slider moving on the same side as the second piston will also move to the low temperature side to the extreme position, so that the water supply pipe on the "low temperature" side is connected to the horizontal part of the slider, and the water supply pipe on the "high temperature" side is connected to the horizontal part of the slider. The wedge-shaped parts of the slider are connected because the opening area of the wedge-shaped part is larger than the horizontal part. At this time, the irrigation volume of the water supply pipe on the "high temperature" side will be greater than that on the "low temperature" side, that is, the irrigation volume on the side with lower humidity will increase, thus It plays the role of irrigation compensation on the evaporation side of the ridge height. The working time of irrigation compensation should be carried out when there is no wind and no sunlight radiation to reduce the compensation error.

After the slow compensation is completed, the humidity on both sides of the ridge approaches the same level, the second piston resets, and the horizontal part of the through hole can be connected to the first water supply pipe and the second water supply pipe at the same time. At this time, the first water supply pipe and the second water supply pipe The through-hole area allocated to the passage of the water supply pipe is consistent in size, thereby achieving uniform irrigation;

As an optional solution of the agricultural irrigation water quota distribution system according to the present invention, the system further includes a water pump, the input end of the water pump is connected to the irrigation water source, and the output end of the water pump is connected to the water inlet pipe. The water inlet ends are connected, and the water inlet pipe is also connected with a flow control valve.

Under the above settings, during irrigation in the present invention, quantitative irrigation is carried out according to the water demand of the crops during the growth period. The water source is pumped out through the water pump and enters the water inlet pipe, and the through hole enters the first water supply pipe and the second water supply pipe to realize irrigation. The setting The flow control valve is used to control the overall flow of irrigation. After reaching the set irrigation flow, it will automatically close and stop irrigation;

As an optional solution of the agricultural irrigation water quota distribution system of the present invention, the temperature-sensing liquid is mercury, the first temperature-sensing cylinder is provided with a thermal conductive ring, and the inner sides of both ends of the U-shaped tube A first piston is slidably connected, and both the first piston and the second piston are made of plastic material.

Under the above settings, the thermal conductive ring is provided to facilitate the temperature transfer of the soil, and the first piston is used to isolate the mercury and prevent the mercury from evaporating and flowing to the position of the second piston. The first piston and the second piston made of plastic material are heavier. Light, used to increase the sensitivity of the movement of the first piston and the second piston in the U-shaped tube. The diameter of the U-shaped tube can be set relatively small to increase the concentration of pressure and reduce the further increase in the first piston and the second piston. The sensitivity of the movement of the second piston in the U-shaped tube;

As an optional solution of the agricultural irrigation water quota distribution system according to the present invention, a driven piece is slidably connected to the inner side of the bottom end of the distribution cylinder, and a displacement sensor is fixedly connected to the inner side of the bottom end of the distribution cylinder. , the driven piece is slidingly connected to the displacement sensor, and the offset direction of the driven piece in the distribution cylinder is obtained through the displacement sensor.

Under the above arrangement, the driven piece and the magnet embedded outside the second piston form a magnetic attraction structure. At this time, the driven piece can move synchronously with the magnet embedded outside the second piston to identify the deflection of the second piston. direction;

As an optional solution of the agricultural irrigation water quota distribution system according to the present invention, a magnet is embedded on the outside of the second piston, the driven piece is also made of a magnet, and a magnet is embedded on the outside of the second piston. The magnet and the driven piece form a magnetic attraction structure, and the driven piece moves synchronously with the magnet embedded outside the second piston.

As an optional solution of the agricultural irrigation water quota distribution system of the present invention, one end of the distribution cylinder is rotatably connected to a toothed ring, one end of the slider is rotatably connected to a screw, and the screw extends out The inner side of the distribution cylinder is spirally connected to the inner side of the gear ring. The bottom end of the distribution cylinder is fixedly connected with a motor. The end of the main shaft of the motor is fixedly connected with a gear. The outer side of the gear meshes with the outer side of the gear ring.

Under the above settings, the movement mode of the slider is as follows: the motor rotates, the motor drives the gear to rotate, the rotation of the gear drives the gear ring to rotate, the spiral connection between the gear ring and the screw allows the screw to move left or right, and the screw drives the slider Movement to the left or right, the limit position of the slider movement is when the wedge is completely connected to one of the water supply pipes.

It is an optional solution of the agricultural irrigation water quota distribution system according to the present invention, wherein: the outer side of the slide block is fixedly connected with a limiting block, and the outer side of the limiting block is slidingly connected with the inner side of the distribution cylinder.

Under the above settings, the limit block is used to limit the rotation of the slider and prevent the slider from rotating;

As an optional solution of the agricultural irrigation water quota distribution system according to the present invention, two symmetrically arranged touch-sensitive switches are fixedly connected to the left and right sides of the bottom end of the distribution cylinder. There is an alarm on the outside.

Under the above arrangement, the present invention also has two symmetrically arranged touch-sensitive switches fixedly connected to the left and right sides of the bottom end of the distribution cylinder. When the driven piece follows the movement of the second piston and touches the touch-sensitive switch, it means that the When the humidity difference on both sides is large, the alarm will sound an alarm to remind the staff to perform irrigation compensation. The soil moisture inside the ridge center can also be detected to analyze whether irrigation is needed.

Compared with the prior art, the beneficial effects of the present invention are:

1. This agricultural irrigation water quota distribution system converts the humidity difference on both sides of the ridge into an information difference that can change the irrigation quota, thereby achieving effective uniform irrigation, because at the same ambient temperature, the wetter the soil, the greater the difference in humidity. The temperature will also be lower. Through this relationship, the inventor set up an ingenious irrigation water distribution system, allowing the irrigation water to first slowly irrigate and compensate for the lower humidity side of the ridge. When the humidity on both sides of the ridge approaches the same At this time, irrigation can be realized on both sides at the same time. This setting can make the soil moisture on both sides of the ridge close to the same, saving water while ensuring the stability of plant growth.

2. In this agricultural irrigation water quota distribution system, the present invention sets two first temperature-sensing cylinders on both sides of the ridge. The first temperature-sensing cylinders are filled with temperature-sensing liquid. The two first temperature-sensing cylinders are respectively Insert into the inside of the left and right slopes of the ridge, and sense the temperature on both sides of the ridge through the first temperature-sensing tube to sense the humidity on both sides of the ridge. The tops of the two first temperature-sensing tubes are connected with the same U-shaped tube, U There is a second piston slidingly connected to the inner side of the tube. When a temperature difference occurs on both sides of the ridge, that is, a humidity difference occurs on both sides of the surface ridge, the temperature-sensing liquid in the first temperature-sensing cylinder expands to different degrees at different temperatures. "High temperature" The expansion degree of the temperature-sensing liquid in the first temperature-sensing cylinder on one side is greater than that of the first temperature-sensing cylinder on the "low temperature" side, and the pressure in the first temperature-sensing cylinder on the "high temperature" side is higher than that on the "low temperature" side. The second piston will move to the "low temperature" side accordingly, and the slider moving on the same side as the second piston will also move to the low temperature side to the extreme position, so that the water supply pipe on the "low temperature" side is level with the slider. The water supply pipe on the "high temperature" side is connected with the wedge-shaped part of the slider, because the opening area of the wedge-shaped part is larger than the horizontal part. At this time, the irrigation volume of the water supply pipe on the "high temperature" side will be greater than that on the "low temperature" side. That is, the amount of irrigation on the side with lower humidity increases, thus playing the role of irrigation compensation on the evaporation side of the ridge. The working time of irrigation compensation should be carried out under conditions with no wind and no sunlight to reduce compensation errors.

3. In this agricultural irrigation water quota distribution system, after the slow compensation is completed, the humidity on both sides of the ridge becomes consistent, the second piston is reset, and the horizontal part of the through hole can be connected to the first water supply pipe and the second water supply pipe at the same time. At this time, the through holes allocated by the passages of the first water supply pipe and the second water supply pipe have the same size, thereby achieving uniform irrigation.

4. This agricultural irrigation water quota distribution system. During irrigation in the present invention, quantitative irrigation is carried out according to the water demand of the crops during the growth period. The water source is extracted through the water pump and enters the water inlet pipe, and the through hole enters the first water supply pipe and the second water supply pipe. The water supply pipe realizes irrigation, and the flow control valve is used to control the overall flow of irrigation. After reaching the set irrigation flow, it will automatically close and stop irrigation.

5. In this agricultural irrigation water quota distribution system, the thermal conductive ring is provided to facilitate the temperature transfer of the soil. The first piston is used to isolate mercury and prevent the mercury from evaporating and flowing to the position of the second piston. The first piston is made of plastic material. The piston and the second piston are light in weight and are used to increase the sensitivity of the movement of the first piston and the second piston in the U-shaped tube. The diameter of the U-shaped tube can be set relatively small to increase the concentration of pressure and reduce the pressure concentration. Small further increases the sensitivity of the movement of the first piston and the second piston within the U-shaped tube.

6. In this agricultural irrigation water quota distribution system, the present invention also has two symmetrically arranged touch-sensitive switches fixedly connected to the left and right sides of the bottom end of the distribution cylinder. When the driven piece follows the movement of the second piston and touches When the touch-sensitive switch is used, it means that the humidity difference on both sides of the ridge is large. At this time, the alarm will sound an alarm to remind the staff to perform irrigation compensation. Among them, the soil moisture inside the center of the ridge can also be detected to analyze whether it is necessary. Provide irrigation.

Description of drawings

Figure 1 is a schematic diagram of the overall structure of existing ridge cultivation;

Figure 2 is a schematic diagram of the overall installation structure of the present invention;

Figure 3 is a schematic diagram of the installation structure of the first temperature sensing tube in the present invention;

Figure 4 is a schematic structural diagram of position A in Figure 2 of the present invention;

Figure 5 is a schematic structural diagram of position B of Figure 3 in the present invention;

Figure 6 is a schematic structural diagram of position C in Figure 3 of the present invention;

Figure 7 is a schematic diagram of the installation structure of the distribution cylinder of the present invention;

Figure 8 is a schematic structural diagram showing the through hole at the slider, the water inlet pipe and the water supply pipe staggered up and down according to the present invention;

Figure 9 is a schematic diagram of the appearance structure of the slider of the present invention.

In the picture: 1. Farmland; 2. Ridge; 3. Left slope; 4. Right slope; 5. Drip irrigation pipe; 6. First water supply pipe; 7. Second water supply pipe; 8. Water pump; 9. First temperature sense Barrel; 91. Thermal conductive ring; 10. Water inlet pipe; 11. Partition plate; 12. U-shaped pipe; 13. Slider; 14. First piston; 15. Ring gear; 16. Motor; 17. Gear; 18. Screw ; 19. Distribution cylinder; 20. Displacement sensor; 21. Touch-sensitive switch; 22. Second piston; 23. Follower piece; 24. Through hole; 241. Horizontal part; 242. Wedge-shaped part; 25. Limit block; 26. Alarm; 27. Flow control valve.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

Example 1

Please refer to Figures 1-9. The present invention provides a technical solution:

An agricultural irrigation water quota distribution system includes farmland 1 and raised ridges 2 on farmland 1. Drip irrigation pipes 5 are installed on the left and right sides of ridge 2. The system includes two first temperature sensing tubes 9, two The interior of the first temperature sensing cylinder 9 is filled with temperature sensing liquid. The two first temperature sensing cylinders 9 are inserted into the insides of the left slope 3 and the right slope 4 of the ridge 2 respectively. The tops of the two first temperature sensing cylinders 9 Communicated with the same U-shaped pipe 12, a second piston 22 is slidingly connected to the inside of the U-shaped pipe 12, and a distribution cylinder 19 is fixedly connected to the top of the U-shaped pipe 12;

A slide block 13 is slidably connected to the inside of the distribution cylinder 19. A through hole 24 is provided inside the slide block 13. A horizontal portion 241 is provided in the center of the through hole 24. The through hole 24 is provided with a horizontal portion 241 in the extending direction toward the outside of the slide block 13. A partition 11 is provided between the wedge-shaped portion 242, the horizontal portion 241 and the wedge-shaped portion 242. The slider 13 can slide in the direction of the second piston 22. A water inlet pipe 10 is provided at the front end of the distribution cylinder 19. The rear end is connected with a first water supply pipe 6 and a second water supply pipe 7. The first water supply pipe 6 and the second water supply pipe 7 are respectively connected with the drip irrigation pipes 5 on the left and right sides of the ridge 2.

Specifically, when the slider 13 is in the center position of the distribution cylinder 19, the horizontal part 241 of the through hole 24 can be connected to the first water supply pipe 6 and the second water supply pipe 7 at the same time. When the slider 13 is in the leftmost position of the distribution cylinder 19, , the horizontal part 241 of the through hole 24 is connected with the first water supply pipe 6, and the wedge-shaped part 242 on the right side is connected with the second water supply pipe 7. When the slider 13 is in the rightmost position of the distribution cylinder 19, the wedge-shaped part 242 on the left side is connected with the first water supply pipe 6. It is connected with the first water supply pipe 6 , and the horizontal part 241 of the through hole 24 is connected with the second water supply pipe 7 .

Generally speaking, under the same ambient temperature, the wetter the soil, the lower its temperature will be. Through this relationship, the inventor has set up an ingenious irrigation water distribution system, so that the irrigation water can first flow to the lower-humidity soil on ridge 2. Slow irrigation compensation is carried out on one side. When the humidity on both sides of ridge 2 approaches the same, irrigation is realized on both sides at the same time. This setting can make the soil moisture on both sides of ridge 2 approach the same, saving water while ensuring that the plants growth stability;

The present invention converts the humidity difference on both sides of the ridge 2 into an information difference that can change the irrigation quota, thereby achieving effective and uniform irrigation. The present invention sets two first temperature sensing tubes 9 on both sides of the ridge 2. The first temperature sensing tube 9 is filled with temperature-sensing liquid, and the two first temperature-sensing cylinders 9 are inserted into the inside of the left slope 3 and the right slope 4 of the ridge 2 respectively. The first temperature-sensing cylinders 9 sense the temperature on both sides of the ridge 2 to sense the ridge. 2 humidity on both sides, the tops of the two first temperature sensing tubes 9 are connected with the same U-shaped tube 12, and the inside of the U-shaped tube 12 is slidingly connected with a second piston 22. When a temperature difference occurs on both sides of the ridge 2, that is, There is a humidity difference on both sides of the surface ridge 2. The temperature-sensing liquid in the first temperature-sensing cylinder 9 expands to different degrees at different temperatures. The expansion degree of the temperature-sensing liquid in the first temperature-sensing cylinder 9 on the "high temperature" side is greater than that on the "low temperature" side. The first temperature sensing cylinder 9 on one side is larger, and the internal pressure of the first temperature sensing cylinder 9 on the "high temperature" side is higher than that on the "low temperature" side. The second piston 22 will move to the "low temperature" side accordingly, and The slider 13 moving on the same side of the second piston 22 will also move to the low temperature side to the extreme position, so that the water supply pipe on the "low temperature" side is connected to the horizontal part 241 of the slider 13, and the water supply pipe on the "high temperature" side It is connected to the wedge-shaped portion 242 of the slider 13, because the opening area of the wedge-shaped portion 242 is larger than the horizontal portion 241. At this time, the irrigation volume of the water supply pipe on the "high temperature" side will be greater than the "low temperature" side, that is, the side with lower humidity. The amount of irrigation increases, thus playing the role of irrigation compensation on the high evaporation side of Ridge 2. The working time of irrigation compensation should be carried out under conditions with no wind and no sunlight to reduce compensation errors.

After the slow compensation is completed, the humidity on both sides of the ridge 2 approaches the same level, the second piston 22 is reset, and the horizontal part 241 of the through hole 24 can be connected to the first water supply pipe 6 and the second water supply pipe 7 at the same time. At this time, the The through holes 24 allocated by the passages of the first water supply pipe 6 and the second water supply pipe 7 have the same area, thereby achieving uniform irrigation;

Specifically, the system also includes a water pump 8. The input end of the water pump 8 is connected to the irrigation water source. The output end of the water pump 8 is connected to the water inlet end of the water inlet pipe 10. The water inlet pipe 10 is also connected to a flow control valve. 27.

Under the above settings, during irrigation in the present invention, quantitative irrigation is performed according to the water demand of the crops during the growth period. The water source is pumped out through the water pump 8 and enters the water inlet pipe 10, and the through hole 24 enters the first water supply pipe 6 and the second water supply pipe 7. To realize irrigation, the set flow control valve 27 is used to control the overall flow of irrigation. After reaching the set irrigation flow, it will automatically close and stop irrigation;

Specifically, the temperature-sensing liquid is mercury, the first temperature-sensing cylinder 9 is provided with a heat conduction ring 91, and the first piston 14 is slidably connected to the inside of both ends of the U-shaped tube 12. The first piston 14 and the second piston 22 are All are made of plastic material.

Under the above settings, the thermal conductive ring 91 is provided to facilitate the temperature transfer of the soil. The first piston 14 is used to isolate mercury and prevent mercury from evaporating and flowing to the position of the second piston 22. The first piston 14 and the second piston 22 are made of plastic material. The second piston 22 is lighter in weight and is used to increase the sensitivity of the movement of the first piston 14 and the second piston 22 in the U-shaped tube 12. The diameter of the U-shaped tube 12 can be set relatively small to increase the concentration of pressure. function, reducing and further increasing the sensitivity of the movement of the first piston 14 and the second piston 22 in the U-shaped tube 12;

Specifically, the driven piece 23 is slidably connected to the inner side of the bottom end of the distribution cylinder 19, and the displacement sensor 20 is fixedly connected to the inner side of the bottom end of the distribution cylinder 19. The driven piece 23 is slidably connected to the displacement sensor 20, and the displacement sensor 20 is connected to the driven piece 23 through the displacement sensor. 20 obtains the deflection direction of the driven piece 23 in the distribution cylinder 19 .

Under the above arrangement, the driven piece 23 and the magnet embedded outside the second piston 22 form a magnetic attraction structure. At this time, the driven piece 23 can move synchronously with the magnet embedded outside the second piston 22 for identifying the second The deflection direction of the piston 22;

Specifically, a magnet is embedded on the outside of the second piston 22, and the driven piece 23 is also made of magnets. The magnet embedded on the outside of the second piston 22 and the driven piece 23 form a magnetic attraction structure, and the driven piece 23 follows the second The magnets embedded on the outside of the piston 22 move synchronously.

Specifically, one end of the distribution cylinder 19 is rotatably connected to a toothed ring 15, and one end of the above-mentioned slider 13 is rotatably connected to a screw 18. The above-mentioned screw 18 extends out of the inside of the distribution tube 19 and is spirally connected to the inside of the toothed ring 15. The above-mentioned distribution A motor 16 is fixedly connected to the bottom end of the barrel 19 , and a gear 17 is fixedly connected to the end of the main shaft of the motor 16 . The outside of the gear 17 meshes with the outside of the gear ring 15 .

Under the above settings, the movement mode of the slider 13 is as follows: the motor 16 rotates, the motor 16 drives the gear 17 to rotate, the rotation of the gear 17 drives the ring gear 15 to rotate, and the spiral connection between the ring gear 15 and the screw 18 enables the screw 18 to move left or right. To move to the right, the screw 18 drives the slider 13 to move to the left or right. The limit position of the movement of the slider 13 is when the wedge-shaped portion 242 is completely connected to one of the water supply pipes.

Specifically, the outer side of the above-mentioned slide block 13 is fixedly connected with the limiting block 25 , and the outer side of the above-mentioned limiting block 25 is slidingly connected with the inner side of the distribution tube 19 .

Under the above settings, the limiting block 25 is used to limit the rotation of the slider 13 and prevent the slider 13 from rotating;

Specifically, two symmetrically arranged touch-sensitive switches 21 are fixedly connected to the left and right sides of the bottom end of the distribution cylinder 19 , and an alarm 26 is provided outside the distribution cylinder 19 .

Under the above arrangement, the present invention also has two symmetrically arranged touch-sensitive switches 21 fixedly connected to the left and right sides of the bottom end of the distribution cylinder 19. When the driven piece 23 follows the movement of the second piston 22 and touches the touch-sensitive switch At 21 o'clock, it means that the humidity difference on both sides of ridge 2 is large. At this time, the alarm 26 will sound an alarm to remind the staff to perform irrigation compensation. Among them, the soil moisture inside the center of ridge 2 can also be detected to analyze whether Irrigation is required.

Example 2

This embodiment is a further explanation of Embodiment 1. The same parts as in Embodiment 1 will not be described again. Please refer to Figure 1-9. When the left slope 3 faces the sun and faces south, causing the humidity of the left slope 3 to be lower than that of the right slope 4, The expansion degree of the temperature sensing liquid in the first temperature sensing cylinder 9 on the left slope 3 is greater than that on the first temperature sensing cylinder 9 on the right slope 4 side, and the internal pressure of the first temperature sensing cylinder 9 on the left slope 3 side is higher than that on the right slope 4 On one side, the second piston 22 will move to the side of the right slope 4 accordingly, and the slider 13 moving on the same side as the second piston 22 will also move to the extreme position of the right slope 4, making the right slope 4 The second water supply pipe 7 on the left slope 3 side is connected with the horizontal part 241 of the slider 13, and the first water supply pipe 6 on the left slope 3 side is connected with the wedge-shaped part 242 of the slider 13, because the opening area of the wedge-shaped part 242 is larger than the horizontal part 241, At this time, the irrigation volume of the first water supply pipe 6 on the left slope 3 side will be greater than that on the right slope 4 side, that is, the irrigation volume on the left slope 3 side will increase, thus playing the role of irrigation compensation on the high evaporation side of ridge 2. The working time of compensation should be carried out under the condition of no wind and no sunlight to reduce the compensation error.

Example 3

This embodiment is a further explanation of Embodiment 1. The same parts as in Embodiment 1 will not be described again. Please refer to Figure 1-9. When the right slope 3 faces the wind for a long time, causing the humidity of the left slope 3 to be higher than that of the right slope 4, The expansion degree of the temperature sensing liquid in the first temperature sensing cylinder 9 on the right slope 4 is greater than that on the first temperature sensing cylinder 9 on the left slope 3 side, and the internal pressure of the first temperature sensing cylinder 9 on the right slope 4 side is higher than that on the left slope 3 On one side, the second piston 22 will correspondingly move to the side of the left slope 3, and the slider 13 moving on the same side as the second piston 22 will also move to the extreme position on the side of the left slope 3, causing the right slope 4 to move to the extreme position. The second water supply pipe 7 on the left slope 3 side is connected with the wedge-shaped part 242 of the slider 13, and the first water supply pipe 6 on the left slope 3 side is connected with the horizontal part 241 of the slider 13, because the opening area of the wedge-shaped part 242 is larger than the horizontal part 241, At this time, the irrigation amount of the first water supply pipe 6 on the left slope 3 side will be less than that on the right slope 4 side, that is, the irrigation amount on the right slope 4 side will increase, thereby playing the role of irrigation compensation on the high evaporation side of ridge 2. The working time of compensation should be carried out under the condition of no wind and no sunlight to reduce the compensation error.

Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art will understand that various changes, modifications, and substitutions can be made to these embodiments without departing from the principles and spirit of the invention. and modifications, the scope of the invention is defined by the appended claims and their equivalents.

Claims (9)

1. An agricultural irrigation water quota distribution system, including farmland (1) and raised ridges (2) on the farmland (1). Drip irrigation pipes (5) are installed on the left and right sides of the ridge (2). Its characteristics The system includes two first temperature sensing cylinders (9), the two first temperature sensing cylinders (9) are filled with temperature sensing liquid, and the two first temperature sensing cylinders (9) are respectively inserted into On the inside of the left slope (3) and the right slope (4) of the ridge (2), the tops of the two first temperature sensing tubes (9) are connected with the same U-shaped tube (12), and the U-shaped tube (12) A second piston (22) is slidably connected to the inner side of 12), and a distribution cylinder (19) is fixedly connected to the top of the U-shaped tube (12); A slider (13) is slidably connected to the inner side of the distribution cylinder (19). A through hole (24) is provided on the inner side of the slider (13). A horizontal portion (241) is provided in the center of the through hole (24). , a wedge-shaped portion (242) is provided in the extending direction of the through hole (24) toward the outside of the slider (13), and a partition (11) is provided between the horizontal portion (241) and the wedge-shaped portion (242). The slider (13) 13) It can slide in the direction of the second piston (22). The front end of the distribution cylinder (19) is provided with a water inlet pipe (10), and the rear end of the distribution cylinder (19) is connected with the first water supply pipe (6). And the second water supply pipe (7), the first water supply pipe (6) and the second water supply pipe (7) are respectively connected with the drip irrigation pipes (5) on the left and right sides of the ridge (2). 2. An agricultural irrigation water quota distribution system according to claim 1, characterized in that when the slider (13) is in the middle position of the distribution cylinder (19), the horizontal part (241) of the through hole (24) can simultaneously It is connected with the first water supply pipe (6) and the second water supply pipe (7). When the slider (13) is in the leftmost position of the distribution cylinder (19), the horizontal part (241) of the through hole (24) is in contact with the first water supply pipe (7). The pipe (6) is connected, and the wedge-shaped part (242) on the right side is connected with the second water supply pipe (7). When the slider (13) is in the rightmost position of the distribution tube (19), the wedge-shaped part (242) on the left side It is connected with the first water supply pipe (6), and the horizontal part (241) of the through hole (24) is connected with the second water supply pipe (7). 3. A kind of agricultural irrigation water quota distribution system according to claim 2, characterized in that: the system also includes a water pump (8), the input end of the water pump (8) is connected with the irrigation water source, and the water pump (8) The output end of 8) is connected with the water inlet end of the water inlet pipe (10), and the water inlet pipe (10) is also connected with a flow control valve (27). 4. An agricultural irrigation water quota distribution system according to claim 3, characterized in that: the temperature-sensing liquid is mercury, the first temperature-sensing cylinder (9) is provided with a thermal conductive ring (91), and the U A first piston (14) is slidably connected to the inside of both ends of the shaped tube (12). The first piston (14) and the second piston (22) are both made of plastic material. 5. An agricultural irrigation water quota distribution system according to claim 4, characterized in that: a driven piece (23) is slidably connected to the inner side of the bottom end of the distribution cylinder (19), and the distribution cylinder (19) A displacement sensor (20) is fixedly connected to the inner side of the bottom end, and the driven piece (23) is slidingly connected to the displacement sensor (20). Through the displacement sensor (20), the position of the driven piece (23) in the distribution cylinder (19) is obtained. ) within the offset direction. 6. An agricultural irrigation water quota distribution system according to claim 5, characterized in that: a magnet is embedded on the outside of the second piston (22), and the driven piece (23) is also made of magnets. The magnet embedded outside the second piston (22) and the driven piece (23) form a magnetic attraction structure, and the driven piece (23) moves synchronously with the magnet embedded outside the second piston (22). 7. An agricultural irrigation water quota distribution system according to claim 6, characterized in that: one end of the distribution tube (19) is rotatably connected to a toothed ring (15), and one end of the slider (13) is rotatably connected. A screw (18) is connected. The screw (18) extends out of the inside of the distribution barrel (19) and is spirally connected to the inside of the gear ring (15). The bottom end of the distribution barrel (19) is fixedly connected to a motor (16). ), a gear (17) is fixedly connected to the end of the main shaft of the motor (16), and the outer side of the gear (17) meshes with the outer side of the gear ring (15). 8. An agricultural irrigation water quota distribution system according to claim 7, characterized in that: the outside of the slider (13) is fixedly connected to a limiting block (25), and the outside of the limiting block (25) It is slidingly connected to the inside of the distribution cylinder (19). 9. An agricultural irrigation water quota distribution system according to claim 8, characterized in that: two symmetrically arranged touch-sensitive switches (21) are fixedly connected to the left and right sides of the bottom end of the distribution tube (19). , an alarm (26) is provided on the outside of the distribution cylinder (19).