A precision irrigation device for agricultural greenhouses

Abstract

The present invention discloses a precision irrigation device for an agricultural greenhouse, which belongs to the technical field of agricultural irrigation. It comprises a greenhouse main body, wherein a water guide trough frame is fixedly connected to the greenhouse main body, an irrigation frame is slidably provided on the water guide trough frame, a plurality of movable frames are provided on the irrigation frame, and an adjustment seat is slidably provided on the movable frame. One end of the adjustment seat is fixedly connected to an arc frame, and a movable seat is slidably provided on the outside of the arc frame. In the present invention, a grooving mechanism is provided and a rotating grooving wheel is utilized to dig annular irrigation grooves around the roots of crops, thereby achieving precise irrigation. Water directly penetrates into the soil, which can reduce water evaporation loss, ensure that the roots of crops are fully hydrated, and effectively prevent soil and water loss. By directly irrigating the root area of ​​the crops, the crop leaf surface is made relatively dry, which helps to reduce mold or pathogens that are bred in a humid environment, thereby reducing the occurrence of diseases and insect pests.

Description

Technical Field

[0001] The present invention belongs to the technical field of agricultural irrigation, and in particular relates to a precision irrigation device for an agricultural greenhouse. Background Art

[0002] Agricultural greenhouses are facilities that enable crop cultivation through artificially controlled environmental conditions (such as temperature, humidity, and light). They are widely used in conservation agriculture, particularly in areas with less-than-ideal climatic conditions. They provide a controlled microclimate that helps improve crop yield, quality, and growth, while also extending the growing season. Greenhouse agriculture plays a vital role in modern agriculture, particularly in the production of vegetables, fruits, and flowers.

[0003] Agricultural greenhouse irrigation involves providing the necessary moisture to crops within the greenhouse through specific irrigation methods, ensuring a favorable growing environment. Greenhouse climate conditions are typically confined and unique, so the design and operation of the irrigation system must be tailored to factors such as humidity, temperature, crop type, and growth stage. An efficient irrigation system can improve water efficiency, reduce resource waste, and increase crop yield and quality.

[0004] The prior art discloses some invention patents in the field of agricultural irrigation technology, among which the invention patent with application number CN201710761629.1 discloses a fully automatic irrigation device for agricultural greenhouses. Rainwater collection troughs are installed on both sides of the greenhouse frame of this technology, through which rainwater can be collected and reused, saving water resources; a reel is installed on the inner side of the greenhouse frame, through which the water pipe can be reeled in, thereby effectively avoiding the problem of tangled water pipes; and a track frame is installed inside the greenhouse, and a slide rod is installed on the track frame, and the irrigation device is installed on the slide rod through a sliding sleeve. The design of the sliding sleeve and the slide rod greatly facilitates irrigation, makes irrigation more uniform, and improves irrigation efficiency.

[0005] In the existing technology, water is sprayed through a sprinkler above the greenhouse during irrigation. If the amount of water sprayed is too large or the water pressure is too high, the water may wash away the soil surface, causing damage to the soil structure and even soil erosion, affecting soil fertility and crop growth. Spraying water from above the crops can easily make the leaves of the crops wet, especially in a warm and humid environment. This may cause water droplets to stay on the leaves of the plants, thereby increasing the chance of pathogen growth and leading to the spread of mold or other diseases.

[0006] Based on this, the present invention designs a precision irrigation device for agricultural greenhouses to solve the above problems. Summary of the Invention

[0007] The purpose of the present invention is to propose a precision irrigation device for agricultural greenhouses in order to solve the problem that water spraying from above crops can easily make the leaves of crops wet, especially in warm and humid environments, which may cause water droplets to stay on the leaves of plants, thereby increasing the chance of pathogen growth and leading to the spread of mold or other diseases.

[0008] In order to achieve the above object, the present invention adopts the following technical solutions:

[0009] A precision irrigation device for an agricultural greenhouse comprises a greenhouse main body, a water trough frame fixedly connected to the greenhouse main body, an irrigation frame slidingly provided on the water trough frame, a plurality of movable frames provided on the irrigation frame, an adjustment seat slidingly provided on the movable frame, an arc frame fixedly connected to one end of the adjustment seat, a movable seat slidingly provided outside the arc frame, a grooving mechanism fixedly provided on the movable seat, the grooving mechanism comprising an electric push rod B, one end of the electric push rod B fixedly connected to the movable seat, the output end of the electric push rod B fixedly connected to a lifting frame, A grooved wheel is rotatably connected to the lifting frame, and a driven wheel is fixedly connected to the middle outer wall of the grooved wheel. A transmission rod is rotatably provided on the lifting frame, and a driving wheel is fixedly connected to the bottom end of the transmission rod. The driving wheel and the driven wheel are meshed and transmitted. A transmission sleeve is slidably fitted on the outer wall of the upper end of the transmission rod, and a motor C is fixedly connected to the top of the transmission sleeve. The motor C is fixedly connected to the movable seat, and a worm is fixedly connected to the outer wall of the transmission sleeve. A transmission mechanism is rotatably provided on the movable seat, and a baffle is fixedly connected to the bottom of the movable seat.

[0010] As a further description of the above technical solution:

[0011] A water supply pipe is fixedly connected to one end of the water guide trough frame, a motor A is fixedly connected to the water guide trough frame, a screw rod is fixedly connected to the output end of the motor A, and the screw rod is threadedly connected to the irrigation frame.

[0012] As a further description of the above technical solution:

[0013] A water pump is fixedly connected to the irrigation frame, and the output end of the water pump extends into the water trough frame. A water pipe is fixedly connected to the output end of the water pump, and a plurality of irrigation hoses are fixedly connected to the water pipe. The other end of the irrigation hose is fixedly connected to the adjustment seat. A plurality of hydraulic rods are fixedly connected through the irrigation frame, and the output end of the hydraulic rod is fixedly connected to the movable frame.

[0014] As a further description of the above technical solution:

[0015] An electric push rod A is fixedly connected to the movable frame, and an output end of the electric push rod A is fixedly connected to the adjustment seat.

[0016] As a further description of the above technical solution:

[0017] The adjusting seat is fixedly connected with a motor B, and the output end of the motor B is fixedly connected with an adjusting wheel.

[0018] As a further description of the above technical solution:

[0019] An adjusting frame is provided in a sliding manner in the arc frame, an arc rack A is fixedly connected to the adjusting frame, an arc rack B is fixedly connected to the arc frame, and the arc rack A is meshed with the adjusting wheel for transmission.

[0020] As a further description of the above technical solution:

[0021] The transmission mechanism includes a universal joint, which is rotatably connected to the movable seat. One end of the universal joint is fixedly connected to a gear shaft, and the gear shaft is meshed with the arc-shaped rack A and the arc-shaped rack B for transmission.

[0022] As a further description of the above technical solution:

[0023] A worm gear is fixedly connected to the other end of the universal joint, and the worm gear is meshed with the worm for transmission.

[0024] As a further description of the above technical solution:

[0025] One end of the baffle is rotatably connected to a backfill plate, one end of the backfill plate is fixedly connected to a fixed shaft, and an outer wall of the fixed shaft is provided with a spiral groove.

[0026] As a further description of the above technical solution:

[0027] A sliding frame is provided on the baffle for sliding cooperation. The sliding frame is provided in an L-shaped structure. A guide ring is fixedly connected to one end of the sliding frame. The inner wall of the guide ring is provided for sliding cooperation with the fixed shaft and the spiral groove. One end of the lifting frame is fixedly connected to the sliding frame.

[0028] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0029] 1. In the present invention, by providing a grooving mechanism and utilizing a rotating grooving wheel, an annular irrigation groove can be dug around the roots of the crops when watering the crops, thereby achieving precise irrigation. Water directly penetrates into the soil, which can reduce water evaporation losses and ensure that the roots of the crops are fully hydrated. The annular groove controls the path of the water flow, so that the water flow no longer diffuses, reduces the impact on the soil surface, and effectively prevents soil erosion. By directly irrigating the root area of ​​the crop, the crop leaf surface is kept relatively dry, which helps to reduce mold or pathogens that are bred in a humid environment, thereby reducing the occurrence of pests and diseases.

[0030] 2. In the present invention, by setting up a transmission mechanism, when the groove digging wheel rotates to dig the groove, the transmission mechanism can drive the movable seat to rotate around the crop, thereby achieving the function of digging the annular groove and realizing the linkage of the device.

[0031] 3. In the present invention, by setting a baffle, the excavated soil and the irrigation water can be blocked. At the same time, by setting a backfill plate, after irrigation, the backfill plate will be driven to rotate while the grooving wheel is retracted. At this time, when the movable seat rotates around the crop, the excavated soil can be backfilled, which helps to maintain irrigation moisture and reduce evaporation loss. At the same time, it provides a more stable growth environment for the root system and promotes healthy growth. The backfilled soil can also effectively block sunlight and reduce the growth of weeds, especially when the soil remains moist after irrigation. Without backfilled soil, the moist exposed soil may attract weeds to grow. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a partial cross-sectional schematic diagram of the overall structure of a precision irrigation device for agricultural greenhouses proposed by the present invention;

[0033] Figure 2 This is a partial structural diagram of a precision irrigation device for agricultural greenhouses proposed by the present invention;

[0034] Figure 3 This is a partial cross-sectional schematic diagram of a water guide chute frame structure of a precision irrigation device for an agricultural greenhouse proposed by the present invention;

[0035] Figure 4 This is a schematic diagram of the irrigation frame structure of an agricultural greenhouse precision irrigation device proposed by the present invention;

[0036] Figure 5 This is a schematic diagram of the arc-shaped frame structure of an agricultural greenhouse precision irrigation device proposed by the present invention;

[0037] Figure 6 This is a schematic diagram of the structure of an adjustment seat and other components of a precision irrigation device for agricultural greenhouses proposed by the present invention;

[0038] Figure 7This is a schematic diagram of the structure of the movable seat and transmission mechanism of the agricultural greenhouse precision irrigation device proposed by the present invention;

[0039] Figure 8 This is a schematic diagram of the grooving mechanism structure of a precision irrigation device for agricultural greenhouses proposed by the present invention;

[0040] Figure 9 This is a schematic diagram of the expanded baffle structure of a precision irrigation device for agricultural greenhouses proposed in the present invention.

[0041] Legend:

[0042] 1. Greenhouse body; 2. Water channel frame; 3. Irrigation frame; 4. Mobile frame; 5. Adjustment seat; 6. Arc frame; 7. Movable seat; 8. Grooving mechanism; 9. Transmission mechanism; 10. Baffle; 201. Water pipe; 202. Motor A; 203. Screw; 301. Water pump; 302. Water pipe; 303. Irrigation hose; 304. Hydraulic rod; 401. Electric push rod A; 501. Motor B; 502. Adjustment wheel; 601. Adjustment frame; 602. Arc-shaped rack A; 603, arc-shaped rack B; 901, universal joint; 902, gear shaft; 903, worm gear; 1001, backfill plate; 1002, fixed shaft; 1003, spiral groove; 1004, sliding frame; 1005, guide ring; 801, electric push rod B; 802, lifting frame; 803, grooving wheel; 804, driven wheel; 805, transmission rod; 806, driving wheel; 807, transmission sleeve; 808, motor C; 809, worm. DETAILED DESCRIPTION

[0043] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0044] Please see the attached Figure 1 -Attached Figure 9The present invention provides a technical solution: a precision irrigation device for an agricultural greenhouse, comprising a greenhouse main body 1, a water guide trough frame 2 fixedly connected to the greenhouse main body 1, an irrigation frame 3 slidingly provided on the water guide trough frame 2, a plurality of movable frames 4 provided on the irrigation frame 3, an adjustment seat 5 slidingly provided on the movable frame 4, an arc frame 6 fixedly connected to one end of the adjustment seat 5, a movable seat 7 slidingly provided on the outer side of the arc frame 6, a grooving mechanism 8 fixedly provided on the movable seat 7, the grooving mechanism 8 comprising an electric push rod B801, one end of the electric push rod B801 fixedly connected to the movable seat 7, an output end of the electric push rod B801 fixedly connected to a lifting frame 802, a grooving wheel 803 rotatably provided on the lifting frame 802, a driven wheel 804 fixedly connected to the outer wall of the middle part of the grooving wheel 803, a transmission rod 805 rotatably connected through the lifting frame 802, and a bottom end of the transmission rod 805 fixedly connected to The driving wheel 806 is meshed with the driven wheel 804 for transmission. The outer wall of the upper end of the transmission rod 805 is slidingly matched with a transmission sleeve 807. The top of the transmission sleeve 807 is fixedly connected with a motor C808. The motor C808 is fixedly connected with the movable seat 7. The outer wall of the transmission sleeve 807 is fixedly connected with a worm 809. The movable seat 7 is rotatably connected with a transmission mechanism 9. The lower part of the movable seat 7 is fixedly connected with a baffle 10. The electric push rod B801 is used to drive the lifting frame 802 to move downward, so that the grooving wheel 803 can be inserted into the soil at the root of the crop. Then, the motor C808 is used to drive the connected transmission sleeve 807 to rotate, so that the transmission sleeve 807 drives the transmission rod 805 to rotate, so that the transmission rod 805 can drive the driving wheel 806 to rotate, so that the driving wheel 806 can drive the driven wheel 804 to rotate, so that the driven wheel 804 can drive the connected grooving wheel 803 to rotate.

[0045] By setting up a grooving mechanism 8 and utilizing the rotating grooving wheel 803, an annular irrigation groove can be dug around the roots of the crops when watering the crops, thereby achieving precise irrigation. Water directly penetrates into the soil, which can reduce water evaporation losses and ensure that the roots of the crops are adequately hydrated. The annular groove controls the path of the water flow, so that the water flow no longer diffuses, reduces the impact on the soil surface, and effectively prevents soil erosion. By directly irrigating the root area of ​​the crops, the crop leaves are kept relatively dry, which helps to reduce mold or pathogens that grow in a humid environment, thereby reducing the occurrence of pests and diseases.

[0046] Specifically, such as Figure 3As shown, a water supply pipe 201 is fixedly connected to one end of the water guide trough frame 2, a motor A202 is fixedly connected to the water guide trough frame 2, a screw rod 203 is fixedly connected to the output end of the motor A202, and the screw rod 203 is threadedly connected to the irrigation frame 3. The motor A202 is used to drive the connected screw rod 203 to rotate, so that the screw rod 203 can drive the irrigation frame 3 to move, so that the irrigation frame 3 moves to a suitable position.

[0047] Specifically, such as Figure 4 As shown, a water pump 301 is fixedly connected to the irrigation frame 3, and the output end of the water pump 301 extends into the water guide trough frame 2. A water guide pipe 302 is fixedly connected to the output end of the water pump 301. A plurality of irrigation hoses 303 are fixedly connected to the water guide pipe 302. The other end of the irrigation hose 303 is fixedly connected to the adjustment seat 5. A plurality of hydraulic rods 304 are fixedly connected and provided on the irrigation frame 3. The output end of the hydraulic rod 304 is fixedly connected to the movable frame 4. The water in the water guide trough frame 2 is pumped out by the water pump 301, discharged through the irrigation hose 303 on the water guide pipe 302, and flows into the annular groove to irrigate the roots of crops. The model of the water pump 301 is a horizontal centrifugal pump. The centrifugal pump pushes water to the pump outlet through the centrifugal force generated by the rotation of the rotor impeller, thereby generating water flow. The water is subjected to the centrifugal force in the pump and is converted into power output. It is suitable for irrigation needs of medium flow and medium and low pressure, and is widely used in farmland irrigation and greenhouse water conservancy irrigation.

[0048] Specifically, such as Figure 6 As shown, an electric push rod A401 is fixedly connected to the movable frame 4, and an output end of the electric push rod A401 is fixedly connected to the adjustment seat 5.

[0049] The adjusting seat 5 is fixedly connected with a motor B501, and the output end of the motor B501 is fixedly connected with an adjusting wheel 502. The motor B501 drives the connected adjusting wheel 502 to rotate. At this time, the adjusting wheel 502 engages with the arc-shaped rack A602, so that the adjusting frame 601 connected to the arc-shaped rack A602 can be moved out of the arc-shaped frame 6.

[0050] Specifically, such as Figure 5 As shown, an adjustment frame 601 is slidably provided in the arc frame 6, an arc rack A602 is fixedly connected to the adjustment frame 601, and an arc rack B603 is fixedly connected to the arc frame 6. The arc rack A602 is meshed with the adjustment wheel 502 for transmission.

[0051] Specifically, such as Figure 7 As shown, the transmission mechanism 9 includes a universal joint 901, which is rotatably connected to the movable seat 7. One end of the universal joint 901 is fixedly connected to a gear shaft 902, which is meshed with the arc-shaped rack A602 and the arc-shaped rack B603 for transmission.

[0052] A worm gear 903 is fixedly connected to the other end of the universal joint 901, and the worm gear 903 is engaged with the worm 809 for transmission. When the transmission sleeve 807 rotates, it will drive the connected worm 809 to rotate, so that the worm 809 drives the worm gear 903 to rotate. At this time, the worm gear 903 will drive the connected universal joint 901 to rotate, so that the universal joint 901 can drive the connected gear shaft 902 to rotate. At this time, the gear shaft 902 will engage with the arc rack A602 and the arc rack B603, thereby driving the movable seat 7 to move on the arc frame 6.

[0053] Specifically, such as Figure 9 As shown, a backfill plate 1001 is rotatably connected to one end of the baffle 10 , and a fixed shaft 1002 is fixedly connected to one end of the backfill plate 1001 . A spiral groove 1003 is provided on the outer wall of the fixed shaft 1002 .

[0054] A sliding frame 1004 is provided on the baffle 10 for sliding cooperation. The sliding frame 1004 is provided in an L-shaped structure. A guide ring 1005 is fixedly connected to one end of the sliding frame 1004. The inner wall of the guide ring 1005 is provided for sliding cooperation with the fixed shaft 1002 and the spiral groove 1003. One end of the lifting frame 802 is fixedly connected to the sliding frame 1004. The electric push rod B801 is used to drive the lifting frame 802 to move upward, so that the grooving wheel 803 moves upward. At this time, the lifting frame 802 will drive the guide ring 1005 connected to the connected sliding frame 1004 to move upward, thereby driving the fixed shaft 1002 with the spiral groove 1003 to rotate, so that the fixed shaft 1002 drives the connected backfill plate 1001 to rotate, so that one end of the backfill plate 1001 is located above the excavated annular groove.

[0055] Working principle, when in use: when it is necessary to irrigate the crops in the greenhouse, firstly, water is injected into the water guide trough frame 2 through the upper water pipe 201 from an external water source, and then the motor A202 is used to drive the connected screw rod 203 to rotate, so that the screw rod 203 can drive the irrigation frame 3 to move, so that the irrigation frame 3 moves to the appropriate position;

[0056] Then, the hydraulic rod 304 is used to drive the movable frame 4 to move down to below the crop leaves. Then, the electric push rod A401 is used to drive the adjustment seat 5 to move, so that the arc frame 6 can be moved around the crop roots. Then, the motor B501 is used to drive the connected adjustment wheel 502 to rotate. At this time, the adjustment wheel 502 is engaged with the arc rack A602, so that the adjustment frame 601 connected to the arc rack A602 can be moved out of the arc frame 6, so that the arc rack A602 and the arc rack B603 can form a complete annular rack.

[0057] Then, the electric push rod B801 is used to drive the lifting frame 802 to move downward, so that the grooving wheel 803 can be inserted into the soil at the root of the crop. Then, the motor C808 is used to drive the connected transmission sleeve 807 to rotate, so that the transmission sleeve 807 drives the transmission rod 805 to rotate, so that the transmission rod 805 can drive the driving wheel 806 to rotate, so that the driving wheel 806 can drive the driven wheel 804 to rotate, so that the driven wheel 804 can drive the connected grooving wheel 803 to rotate, so that the grooving wheel 803 can dig up the soil around the root of the crop, and under the action of the baffle 10, form a water retaining ridge;

[0058] Then, when the transmission sleeve 807 rotates, it will drive the connected worm 809 to rotate, so that the worm 809 drives the worm wheel 903 to rotate. At this time, the worm wheel 903 will drive the connected universal joint 901 to rotate, so that the universal joint 901 can drive the connected gear shaft 902 to rotate. At this time, the gear shaft 902 will engage with the arc-shaped rack A602 and the arc-shaped rack B603, thereby driving the movable seat 7 to move on the arc-shaped frame 6, so that the grooving wheel 803 can dig an annular groove. By digging an annular groove around the roots, water can be concentrated around the root system, increasing the penetration depth of water. This method helps to ensure that water penetrates into the soil and promotes the growth of the root system. Deep water absorption improves the drought resistance of crops. By concentrating irrigation on the root area of ​​crops, water evaporation and runoff waste are reduced. Water mainly flows to the roots, avoiding water waste and improving irrigation efficiency. It is especially suitable for areas with relatively scarce water resources. Water accumulates in the annular groove, increasing the water supply to the crop roots, prompting the roots to expand outward, enhancing the root system's water absorption capacity and nutrient absorption. The healthy growth of the root system helps to improve the overall growth and yield of crops. Then, the water in the water guide trough frame 2 is pumped out by the water pump 301, discharged through the irrigation hose 303 on the water guide pipe 302, and flows into the annular groove to irrigate the crop roots.

[0059] After the irrigation water volume is reached, the electric push rod B801 is used to drive the lifting frame 802 to move upward, so that the grooving wheel 803 moves upward. At this time, the lifting frame 802 will drive the guide ring 1005 connected to the sliding frame 1004 to move upward, thereby driving the fixed shaft 1002 with the spiral groove 1003 to rotate, so that the fixed shaft 1002 drives the connected backfill plate 1001 to rotate, so that one end of the backfill plate 1001 is located above the excavated annular groove. At this time, when the movable seat 7 moves on the arc frame 6, the baffle 10 cooperates with the backfill plate 1001 to backfill the excavated soil. The backfilled soil can cover the moist area around the root system, help maintain soil moisture, and reduce surface evaporation of water. In this way, the moisture of the soil can be maintained for a longer time, which is helpful for crops to grow under drought or high temperature conditions. Digging annular grooves and backfilling soil can help improve the air permeability and water permeability of the soil. The soil structure is improved after backfilling, and the roots can more easily penetrate the soil, absorb more water and nutrients, and help the healthy growth of crops.

[0060] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. An agricultural greenhouse precision irrigation device, comprising a greenhouse body, characterized in that: The trough frame is fixedly connected to the greenhouse main body, and the irrigation frame is slidably provided on the water trough frame, and multiple movable frames are provided on the irrigation frame, and the movable frame is slidably provided with an adjustment seat, and one end of the adjustment seat is fixedly connected to an arc frame, and a movable seat is slidably provided on the outer side of the arc frame, and a grooving mechanism is fixedly connected to the movable seat, and the grooving mechanism includes an electric push rod B, one end of the electric push rod B is fixedly connected to the movable seat, and the output end of the electric push rod B is fixedly connected to a lifting frame, and a grooving wheel is rotatably connected to the lifting frame, and a driven wheel is fixedly connected to the middle outer wall of the grooving wheel, and a transmission rod is rotatably connected to the lifting frame, and the bottom end of the transmission rod is fixedly connected to a driving wheel, and the driving wheel and the driven wheel are meshed for transmission, and a transmission sleeve is slidably provided on the outer wall of the upper end of the transmission rod, and the top of the transmission sleeve is fixedly connected to a motor C, and the motor C is fixedly connected to the movable seat. The outer wall of the transmission sleeve is fixedly connected with a worm, and a transmission mechanism is rotatably provided on the movable seat, and a baffle is fixedly connected with the lower part of the movable seat, and a water pump is fixedly connected to the irrigation frame, and the output end of the water pump is extended into the water guide trough frame, and the output end of the water pump is fixedly connected with a water guide pipe, and a plurality of irrigation hoses are fixedly connected on the water guide pipe, and the other end of the irrigation hose is fixedly connected to the adjustment seat. The irrigation frame is fixedly provided with a plurality of hydraulic rods, and the output end of the hydraulic rod is fixedly connected to the movable frame. One end of the baffle is rotatably connected with a backfill plate, and one end of the backfill plate is fixedly connected with a fixed shaft. The outer wall of the fixed shaft is provided with a spiral groove, and a sliding frame is slidably fitted on the baffle, and the sliding frame is L-shaped. One end of the sliding frame is fixedly connected with a guide ring, and the inner wall of the guide ring is slidably fitted with the fixed shaft and the spiral groove, and one end of the lifting frame is fixedly connected to the sliding frame.

2. The agricultural greenhouse precision irrigation device according to claim 1, characterized in that: A water supply pipe is fixedly connected to one end of the water guide trough frame, a motor A is fixedly connected to the water guide trough frame, a screw rod is fixedly connected to the output end of the motor A, and the screw rod is threadedly connected to the irrigation frame.

3. The agricultural greenhouse precision irrigation device according to claim 1, characterized in that: An electric push rod A is fixedly connected to the movable frame, and an output end of the electric push rod A is fixedly connected to the adjustment seat.

4. The agricultural greenhouse precision irrigation device according to claim 1, characterized in that: The adjusting seat is fixedly connected with a motor B, and the output end of the motor B is fixedly connected with an adjusting wheel.

5. The agricultural greenhouse precision irrigation device according to claim 4, characterized in that: An adjusting frame is provided in a sliding manner in the arc frame, an arc rack A is fixedly connected to the adjusting frame, an arc rack B is fixedly connected to the arc frame, and the arc rack A is meshed with the adjusting wheel for transmission.

6. The agricultural greenhouse precision irrigation device according to claim 1, characterized in that: The transmission mechanism includes a universal joint, which is rotatably connected to the movable seat. One end of the universal joint is fixedly connected to a gear shaft, and the gear shaft is meshed with the arc-shaped rack A and the arc-shaped rack B for transmission.

7. The agricultural greenhouse precision irrigation device according to claim 6, characterized in that: A worm gear is fixedly connected to the other end of the universal joint, and the worm gear is meshed with the worm for transmission.

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