A T-shaped multi-point soil moisture detection and irrigation integrated device

Abstract

This utility model relates to the field of agricultural intelligent equipment technology, specifically a T-shaped multi-point soil moisture detection and irrigation integrated device. It includes a functionally separable T-shaped main pipe, integrating a multi-point moisture detection module, an anti-clogging irrigation module, and a control module. The T-shaped main pipe achieves physical isolation between the equipment compartment and the irrigation channel and conforms to ergonomic design; the moisture detection module drives the sensor probe via direct drive, coupled with a soil-proof sealing structure to ensure reliable detection; the irrigation module is equipped with anti-clogging components to prevent soil blockage; the control module integrates wireless communication and real-time display functions. After the device is inserted into the soil, it can simultaneously complete multi-point soil moisture detection, and carry out targeted irrigation based on the detection results, making maintenance convenient. This device achieves safe isolation of water and electricity, improves detection and irrigation efficiency, reduces operating and maintenance costs, and is suitable for precision planting needs.

Description

Technical Field

[0001] This utility model relates to the field of agricultural intelligent equipment technology, specifically a T-shaped multi-point soil moisture detection and irrigation integrated device. Background Technology

[0002] In the fields of agricultural production and horticultural maintenance, soil moisture is a core environmental factor for regulating crop growth. Especially in water-saving agriculture and precision planting models, real-time acquisition of multi-point soil moisture data and targeted irrigation are key links to ensure crop yield and improve water resource utilization. For example, in fruit and vegetable cultivation, the difference in moisture in different areas of the root system needs to be accurately monitored to avoid local waterlogging or drought. Dynamic control of moisture during the growth cycle of cash crops directly affects the formation of quality. Therefore, efficient integrated soil moisture detection and irrigation technology has become an important support for agricultural modernization.

[0003] Currently, commonly used soil moisture detection and irrigation solutions in the industry are mainly divided into two categories: one is the split-type mode of "single-point detection probe + independent irrigation pipe", which involves inserting a handheld probe into the soil point by point for detection, and then replenishing water through a fixed irrigation pipe or mobile irrigation equipment; the other is a simple integrated device, which mostly adopts a straight rod structure, integrating a single set of sensors and irrigation holes into the same rod, and realizing detection and irrigation functions after being inserted into the soil. The former is cumbersome to operate and has low detection efficiency, making it difficult to meet the needs of multi-point synchronous monitoring of large areas; the latter, although integrated, is limited by its structural design and can only complete single-point detection, and the irrigation range is fixed, making it unable to adapt to the spatial distribution characteristics of different crop root systems.

[0004] Currently, existing integrated devices still suffer from three major defects: First, insufficient detection reliability. Most devices use gears or belts to drive sensor probes, and soil particles can easily cause transmission jamming, preventing the probes from extending or retracting properly and affecting detection accuracy. Second, significant safety hazards. The lack of effective isolation between the circuit module and the irrigation channel makes it prone to water leakage and short circuits in humid environments, shortening the device's lifespan and posing a risk of electric shock. Third, inconvenient operation and maintenance. Inserting the rod-type structure into the soil requires considerable manpower, and repairs require pulling the entire device out of the soil, which not only damages the soil structure but also increases maintenance costs. In addition, the irrigation holes are easily clogged with soil, requiring frequent cleaning, which seriously affects operational efficiency and makes it difficult to meet the needs of modern agriculture for large-scale and efficient production. Utility Model Content

[0005] In view of this, the purpose of this utility model is to propose a T-shaped multi-point soil moisture detection and irrigation integrated device. This device integrates a functionally separate T-shaped main pipe (including the main irrigation channel and an independent drive chamber) consisting of a vertical insertion tube, a horizontal gripping rod, and a partition; a multi-point moisture detection module consisting of a waterproof micro-electric push rod, a rigid transmission rod, a driven slider with a guide structure, and a soil-proof sealing component; an anti-clogging irrigation module consisting of an elastic anti-clogging sleeve, a sealing joint, and an independent irrigation channel; a dual water and electricity isolation structure that physically isolates the equipment compartment from the irrigation channel; an ergonomic grip design; and a control module integrating wireless communication and real-time display. This integrated device solves the problems of low efficiency in multi-point soil moisture detection, sensor transmission failure due to soil jamming, safety hazards due to incomplete water and electricity isolation, easy clogging of irrigation holes, laborious operation, and inconvenient maintenance found in existing technologies.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A T-shaped multi-point soil moisture detection and irrigation integrated device includes a T-shaped main pipe, a moisture detection module, an irrigation module, and a control module;

[0008] The T-shaped main tube is composed of a vertical insertion tube and a horizontal handle connected by a flange seal. The bottom of the vertical insertion tube is connected by a threaded connection to a detachable conical head with a soil discharge groove.

[0009] The vertical insertion tube has a main irrigation channel arranged along its axis inside. The vertical insertion tube has three mutually isolated drive chambers evenly distributed in a ring around the main irrigation channel inside. The axes of the three drive chambers are all consistent with the radial direction of the vertical insertion tube.

[0010] A partition is integrally formed at the connection between the horizontal handle and the vertical insertion tube. The partition divides the internal space of the horizontal handle into a sealed equipment compartment and an independent irrigation channel that are isolated from each other. The partition has a first connecting hole and three second connecting holes. The first connecting hole connects the independent irrigation channel to the main irrigation channel, and the three second connecting holes connect the sealed equipment compartment to the three drive chambers respectively.

[0011] The end of the horizontal grip rod away from the vertical insertion tube is connected by a threaded openable sealing end cap with a sealing structure, and an operation hole is opened in the lower section of the tube wall of the horizontal grip rod.

[0012] The lower section of the vertical insertion tube has three sensor protrusion holes and three irrigation outlet holes. The three sensor protrusion holes are coaxially connected to the three driving chambers one-to-one. The three irrigation outlet holes are located between two adjacent sensor protrusion holes and are all connected to the main irrigation channel.

[0013] The humidity detection module includes three waterproof miniature electric actuators, three transmission rods, three driven sliders, and three humidity sensors. The three waterproof miniature electric actuators are horizontally arranged inside the sealed equipment chamber, with the fixed end of each actuator fixedly connected to the inner wall of the chamber. One end of each transmission rod is fixedly connected to the end of the actuator of one of the waterproof miniature electric actuators, and the other end of each transmission rod passes through a second connecting hole and extends into a corresponding drive chamber. A dynamic sealing assembly is provided at the mating point between each transmission rod and the corresponding second connecting hole. Each driven slider is slidably disposed within a drive chamber, with one end fixedly connected to the end of a corresponding transmission rod. The probe tail of each humidity sensor is fixedly connected to the other end of a driven slider. A dynamic sealing ring is provided inside each sensor protrusion hole, and the dynamic sealing ring fits tightly against the outer wall of the humidity sensor probe. A soil-proof plate is hinged to the outside of each sensor protrusion hole.

[0014] The irrigation module includes a water inlet and three elastic anti-clogging sleeves; the water inlet is fixedly located at the end of the horizontal handle away from the sealing end cap, and the water inlet is connected to the independent irrigation channel; the independent irrigation channel is connected to the main irrigation channel through the first connecting hole, and a sealing joint is provided at the connection between the first connecting hole and the independent irrigation channel and the main irrigation channel; the three elastic anti-clogging sleeves are respectively fixedly located inside the three irrigation outlet holes;

[0015] The control module includes a power supply, a control circuit board, and an operating switch; the power supply and the control circuit board are both fixedly installed inside the sealed equipment compartment, and the operating switch is fixedly installed in the operating hole on the outer wall of the horizontal grip; the power supply is electrically connected to the control circuit board, the operating switch is electrically connected to the control circuit board, and the three waterproof miniature electric push rods are all electrically connected to the control circuit board.

[0016] Furthermore, an O-ring is provided between the flange mating surface connecting the vertical insertion tube and the horizontal handle; a silicone sealing gasket is provided at the threaded connection between the horizontal handle and the sealing end cap, the silicone sealing gasket is fixedly disposed on the inner side of the sealing end cap, and the silicone sealing gasket is tightly fitted to the end face of the horizontal handle.

[0017] Furthermore, the dynamic sealing assembly includes a dustproof ring and a Y-shaped sealing ring arranged sequentially; both the dustproof ring and the Y-shaped sealing ring are sleeved on the outer wall of the transmission rod, and the outer walls of the dustproof ring and the Y-shaped sealing ring are tightly fitted to the inner wall of the second connecting hole; the dynamic sealing ring inside the sensor protrusion hole is made of fluororubber, and the cross-section of the dynamic sealing ring is U-shaped; a torsion spring is provided at the hinge between the soil-proof plate and the outer wall of the vertical insertion tube, one end of the torsion spring is fixedly connected to the soil-proof plate, and the other end of the torsion spring is fixedly connected to the outer wall of the vertical insertion tube.

[0018] Furthermore, the inner wall of the water inlet of the irrigation module is provided with a sealing gasket, which is tightly fitted to the outer wall of the external water pipe; the elastic anti-clogging sleeve is made of silicone, and the inner side of the elastic anti-clogging sleeve is provided with three elastic petals extending towards the center. In the natural state, the three elastic petals are fitted together to close the irrigation outlet hole, and under the action of water pressure, the three elastic petals open outward to open the irrigation outlet hole; the sealing joint between the independent irrigation waterway and the main irrigation channel is a pagoda joint, and hose clamps are provided at the connection between the pagoda joint and the independent irrigation waterway, and at the connection between the pagoda joint and the main irrigation channel, respectively, and the hose clamps fix the pagoda joint to the independent irrigation waterway and the pagoda joint to the main irrigation channel.

[0019] Furthermore, the control circuit board of the control module integrates a microcontroller, a relay module, and a wireless communication unit; the wireless communication unit is a LoRa module or a Bluetooth module; the outer wall of the horizontal grip is provided with a display screen, which is electrically connected to the control circuit board, and the display screen is used to display the humidity data detected by the humidity sensor; the operation switch is a self-resetting button switch, and a sealing ring is provided at the mating point between the operation switch and the operation hole of the horizontal grip, the sealing ring being fitted onto the outer wall of the operation switch and tightly fitting against the inner wall of the operation hole.

[0020] Furthermore, each drive chamber of the vertical insertion tube has an axial guide groove on its inner wall; each driven slider has a guide boss on its outer wall that matches the guide groove, and the guide boss is slidably disposed in the guide groove; the driven slider is connected to the probe tail of the humidity sensor by a snap-fit; three brackets are fixedly provided on the inner wall of the sealed equipment chamber, and the fixed ends of the three waterproof miniature electric push rods are respectively fixedly connected to the three brackets; the transmission rod is threadedly connected to the push rod end of the waterproof miniature electric push rod, and the transmission rod is threadedly connected to the driven slider.

[0021] This utility model has the following beneficial effects:

[0022] This utility model integrates a functionally separate T-shaped main body, a multi-point precise humidity detection unit, an anti-clogging high-efficiency irrigation unit, and a safe water and electricity isolation and convenient operation structure into an integrated device. The ergonomic design of the T-shaped structure allows operators to easily insert the device into the soil, reducing operational intensity. The multi-point synchronous detection and anti-clogging irrigation design improves the efficiency and accuracy of soil moisture detection, prevents irrigation hole blockage, and ensures stable irrigation. The dual water and electricity isolation structure eliminates the risk of short circuits in humid environments, enhancing safety. The overall device achieves efficient integration of detection and irrigation, reducing maintenance frequency and costs, adapting to the precision planting needs of different scenarios, and contributing to improved agricultural production efficiency. Attached Figure Description

[0023] Figure 1 This is a structural diagram of the overall device;

[0024] Figure 2 This is a partial sectional view of the overall device;

[0025] Figure 3 This is a sectional view of the vertical cannulation.

[0026] Figure 4 This is an enlarged view of the transmission seal of the humidity detection module;

[0027] Figure 5 Enlarged view of irrigation outlet and elastic anti-clogging sleeve.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. T-shaped main pipe; 11. Vertical insertion tube; 12. Horizontal handle; 14. Conical head; 141. Soil discharge trough; 15. Partition plate; 151. First connecting hole; 152. Second connecting hole; 16. Sealed end cap; 161. Silicone sealing gasket; 121. Sealed equipment compartment; 122. Independent irrigation waterway; 111. Main irrigation channel; 112. Drive chamber; 1121. Guide groove; 113. Sensor extension hole; 114. Irrigation outlet hole; 2. Humidity detection module; 21. Waterproof miniature electric push rod; 22. Transmission rod; 23. Driven slider; 24. Humidity sensor; 27. Soil-proof plate; 271. Hinge; 3. Irrigation module; 31. Water inlet; 32. Elastic anti-clogging sleeve; 321. Elastic flap; 4. Control module. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0032] Reference Figure 1-5 One embodiment of this utility model is a T-shaped multi-point soil moisture detection and irrigation integrated device, which includes a T-shaped main pipe 1, a moisture detection module 2, an irrigation module 3, and a control module 4.

[0033] The T-shaped main pipe 1 is connected by a vertical insertion tube 11 and a horizontal handle 12 through a flange seal: the upper flange of the flange is welded to one end of the horizontal handle 12, and the lower flange is welded to the top of the vertical insertion tube 11. An O-ring is clamped on the mating surface, and the bolts are tightened to achieve a seal.

[0034] The bottom of the vertical insertion tube 11 is connected to a conical head 14 by a thread. The outer wall of the conical head 14 is provided with a soil discharge trough 141. The main irrigation channel 111 is provided along the axis inside the tube. Three independent drive chambers 112 (isolated from the main irrigation channel 111) are evenly arranged around the main irrigation channel 111. The lower section of the tube wall has a sensor extension hole 113 corresponding to the drive chamber 112. An irrigation water outlet hole 114 (connected to the main irrigation channel 111) is opened between adjacent extension holes.

[0035] The transverse grip 12 has an integrally formed partition 15 that separates the left sealed equipment compartment 121 from the right independent irrigation channel 122. The partition 15 has a first connecting hole 151 (connecting the independent irrigation channel 122 to the main irrigation channel 111) and three second connecting holes 152 (connecting the sealed equipment compartment 121 to the drive chamber 112). The end of the transverse grip 12 is connected to a sealing end cap 16 by a thread. The end cap has a silicone sealing gasket 161 inside and an operating hole on its outer wall.

[0036] Humidity detection module 2 includes three waterproof miniature electric actuators 21, three transmission rods 22, three driven sliders 23, three humidity sensors 24, and sealing and soil-proof components.

[0037] A waterproof miniature electric push rod 21 is horizontally fixed on the bracket inside the sealed equipment compartment 121. The end of the push rod is connected to the transmission rod 22 via a thread. The transmission rod 22 extends into the drive chamber 112 through the second connecting hole 152. A dustproof ring and a Y-type sealing ring (dynamic sealing assembly) are fitted at the mating point to prevent soil and moisture from entering.

[0038] The driven slider 23 is slidably mounted in the drive chamber 112. The guide boss on the outer wall is engaged in the guide groove 1121 of the chamber (to prevent rotation). One end of the slider is connected to the transmission rod 22, and the other end is connected to the humidity sensor 24 through a buckle. The sensor probe passes through the sensor extension hole 113. A dynamic sealing ring is provided on the inner side of the hole (to prevent water leakage). The outer side is connected to the anti-soil plate 27 through the hinge 271. The hinge is fitted with a torsion spring (to seal the hole in the natural state, to open it when the probe extends, and to scrape the soil back to its original position when it retracts).

[0039] Irrigation module 3 includes an inlet 31, three elastic anti-clogging sleeves 32, a sealing joint, and two hose clamps.

[0040] The inlet 31 is welded to the end of the horizontal handle 12 and connected to the independent irrigation channel 122. The inner wall is fitted with a sealing gasket (to prevent leakage when connected to the external water pipe). The independent irrigation channel 122 is connected to the main irrigation channel 111 through a pagoda-shaped sealing joint. The two ends of the joint are fitted with hose clamps at the points where they meet the channel to secure and seal the connection.

[0041] The elastic anti-clogging sleeve 32 is installed inside the irrigation outlet hole 114 (made of silicone). The inner elastic flap 321 closes naturally (to prevent soil from clogging the hole). Under water pressure, it opens to let water flow and resets after the water stops.

[0042] Control module 4 includes a power supply, control circuit board, operation switches, and display screen.

[0043] The power supply and control circuit board is fixed inside the sealed equipment compartment 121, and the power supply is connected to the circuit board for power supply; the circuit board integrates a microcontroller, a relay module (for controlling the extension and retraction of the push rod) and a wireless communication unit (for transmitting data), and the relay is connected to the waterproof miniature electric push rod 21.

[0044] The operating switch is installed inside the operating hole and connected to the circuit board (to send control commands). The outer wall is fitted with a sealing ring to prevent leakage. The display screen is attached to the outer wall of the horizontal handle 12 and connected to the circuit board (to display humidity data).

[0045] When this embodiment is implemented

[0046] First, the operator checks the status of each component of the device: confirms that the sealing end cap 16 is tightened and the silicone sealing gasket 161 is properly attached; checks whether the operating switch is flexible and whether the display screen is displaying normally; connects the external water pipe to the water inlet 31, ensures that the sealing gasket is in place, and temporarily closes the external water pipe valve.

[0047] Subsequently, the operator holds the middle of the horizontal lever 12 with both hands, with their thumbs close to the operating switch, aligns the conical head 14 at the bottom of the vertical insertion tube 11 with the soil area to be tested, and keeps the vertical insertion tube 11 perpendicular to the ground; applies downward force with both hands at a uniform speed to push the horizontal lever 12, so that the vertical insertion tube 11 is gradually inserted into the soil, and the soil drainage groove 141 guides the soil to both sides to reduce insertion resistance; continues to insert until the sensor protrusion hole 113 and irrigation outlet hole 114 at the lower section of the vertical insertion tube 11 are completely buried in the soil, at which point the lower end of the horizontal lever 12 is close to the soil surface, and the insertion is stopped.

[0048] Next, the operator presses the operation switch to send a detection command to the control circuit board. After receiving the command, the microcontroller on the control circuit board powers on the relay module, and the three waterproof miniature electric push rods 21 start synchronously. The ends of the push rods extend outward, driving the transmission rod 22 to slide along the second connecting hole 152 toward the drive chamber 112. The transmission rod 22 pushes the driven slider 23 to slide outward along the guide groove 1121 of the drive chamber 112. The driven slider 23 drives the probe of the humidity sensor 24 to pass through the sensor extension hole 113, push open the soil-proof plate 27 and insert it into the soil. It is important to note that the driven slider 23 and the humidity sensor 24 are connected by an electric telescopic rod. This electric telescopic rod is connected to the control module 4 through a circuit. Therefore, the control module 4 can control the extension and retraction of the electric telescopic rod to control the distance the probe of the humidity sensor 24 enters the soil, thereby achieving long-distance humidity sensing at the same layer in the soil.

[0049] When the push rod of the waterproof mini electric push rod 21 extends to its maximum stroke, the microcontroller controls the relay module to de-energize, and the push rod stops moving. The humidity sensor 24 starts to detect soil moisture and transmits the detected analog signal to the control circuit board. After being processed by the microcontroller, it is converted into a digital humidity value. This humidity value is displayed in real time on the display screen and transmitted to an external terminal through the wireless communication unit. The operator can determine whether irrigation is needed based on the humidity value.

[0050] If the soil moisture value displayed on the screen is lower than the preset threshold (such as the lower limit of the suitable moisture for crop growth), the operator opens the external water pipe valve, and the water flows into the independent irrigation channel 122 through the inlet 31; the water flows along the independent irrigation channel 122 and enters the main irrigation channel 111 through the sealed joint; the water pressure in the main irrigation channel 111 gradually increases, pushing the elastic anti-clogging sleeve 32 elastic flap 321 inside the irrigation outlet hole 114 to open, and the water flows out through the gap between the elastic flaps 321 and seeps into the surrounding soil.

[0051] When the soil moisture value displayed on the screen reaches the preset upper limit (such as the upper limit of moisture suitable for crop growth), the operator closes the external water pipe valve, the water pressure in the main irrigation channel 111 disappears, the elastic flap 321 of the elastic anti-blocking sleeve 32 resets under its own elasticity, and blocks the irrigation outlet hole 114, thus completing the irrigation.

[0052] After irrigation is completed, the operator presses the operation switch again to send a retraction command to the control circuit board; the microcontroller controls the relay module to be energized in reverse, the push rod of the waterproof miniature electric push rod 21 retracts, and drives the transmission rod 22 to slide towards the sealed equipment chamber 121; the transmission rod 22 pulls the driven slider 23 to slide inward along the guide groove 1121, driving the probe of the humidity sensor 24 to retract into the drive chamber 112; during this process, the soil-proof plate 27 is reset under the action of the torsion spring, scraping off the soil particles on the outer wall of the probe, and the dynamic sealing ring always remains sealed to prevent water from entering the drive chamber 112.

[0053] Subsequently, the operator applies force upwards with both hands at a uniform speed to pull the horizontal grip 12, thereby pulling the vertical insertion tube 11 out of the soil. If maintenance is required, the sealing end cap 16 can be unscrewed to inspect the power supply and control circuit board inside the sealed equipment compartment 121, or to replace the damaged humidity sensor 24. After maintenance, the sealing end cap 16 is tightened to ensure a good seal.

[0054] The core protection principle in this embodiment is as follows: the sealed equipment chamber 121 is completely isolated from the independent irrigation waterway 122 by the partition 15, and the drive chamber 112 is completely isolated from the main irrigation channel 111 by the pipe wall. Combined with the sealing effect of the dynamic sealing component, the dynamic sealing ring and the sealing ring, a double water and electricity isolation structure is formed, which effectively prevents water from entering the electrical component area, avoids short circuit faults, and ensures safe use.

[0055] The soil-proof plate 27 can prevent soil particles from entering the sensor protrusion hole 113, and the elastic anti-clogging sleeve 32 can prevent soil particles from entering the irrigation outlet hole 114. At the same time, the soil-proof plate 27 can scrape off the soil when the probe is retracted, ensuring the cleanliness of the components, significantly reducing the risk of clogging, and ensuring the stable operation of the device.

[0056] The T-shaped main tube 1 has an ergonomic structure, and the horizontal grip 12 makes it easy to hold and apply force, saving effort when inserting it into the soil. The operation switch controls detection and retraction with one button, and the display screen shows data in real time. No complicated operation is required, and even non-professionals can use it easily.

[0057] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A T-shaped multi-point soil moisture detection and irrigation integrated device, characterized in that: It includes a T-shaped main pipe, a humidity detection module, an irrigation module, and a control module; The T-shaped main tube is composed of a vertical insertion tube and a horizontal handle connected by a flange seal. The bottom of the vertical insertion tube is connected by a threaded connection to a detachable conical head with a soil discharge groove. The vertical insertion tube has a main irrigation channel arranged along its axis inside. The vertical insertion tube has three mutually isolated drive chambers evenly distributed in a ring around the main irrigation channel inside. The axes of the three drive chambers are all consistent with the radial direction of the vertical insertion tube. A partition is integrally formed at the connection between the horizontal handle and the vertical insertion tube. The partition divides the internal space of the horizontal handle into a sealed equipment compartment and an independent irrigation channel that are isolated from each other. The partition has a first connecting hole and three second connecting holes. The first connecting hole connects the independent irrigation channel to the main irrigation channel, and the three second connecting holes connect the sealed equipment compartment to the three drive chambers respectively. The end of the horizontal grip rod away from the vertical insertion tube is connected by a threaded openable sealing end cap with a sealing structure, and an operation hole is opened in the lower section of the tube wall of the horizontal grip rod. The lower section of the vertical insertion tube has three sensor protrusion holes and three irrigation outlet holes. The three sensor protrusion holes are coaxially connected to the three driving chambers one-to-one. The three irrigation outlet holes are located between two adjacent sensor protrusion holes and are all connected to the main irrigation channel. The humidity detection module includes three waterproof miniature electric actuators, three transmission rods, three driven sliders, and three humidity sensors. The three waterproof miniature electric actuators are horizontally arranged inside the sealed equipment chamber, with the fixed end of each actuator fixedly connected to the inner wall of the chamber. One end of each transmission rod is fixedly connected to the end of the actuator of one of the waterproof miniature electric actuators, and the other end of each transmission rod passes through a second connecting hole and extends into a corresponding drive chamber. A dynamic sealing assembly is provided at the mating point between each transmission rod and the corresponding second connecting hole. Each driven slider is slidably disposed within a drive chamber, with one end fixedly connected to the end of a corresponding transmission rod. The probe tail of each humidity sensor is fixedly connected to the other end of a driven slider. A dynamic sealing ring is provided inside each sensor protrusion hole, and the dynamic sealing ring fits tightly against the outer wall of the humidity sensor probe. A soil-proof sheet is provided on the outside of each sensor protrusion hole. The irrigation module includes a water inlet and three elastic anti-clogging sleeves; the water inlet is fixedly located at the end of the horizontal handle away from the sealing end cap, and the water inlet is connected to the independent irrigation channel; the independent irrigation channel is connected to the main irrigation channel through the first connecting hole, and a sealing joint is provided at the connection between the first connecting hole and the independent irrigation channel and the main irrigation channel; the three elastic anti-clogging sleeves are respectively fixedly located inside the three irrigation outlet holes; The control module includes a power supply, a control circuit board, and an operating switch; the power supply and the control circuit board are both fixedly installed inside the sealed equipment compartment, and the operating switch is fixedly installed in the operating hole on the outer wall of the horizontal grip; the power supply is electrically connected to the control circuit board, the operating switch is electrically connected to the control circuit board, and the three waterproof miniature electric push rods are all electrically connected to the control circuit board.

2. The T-shaped multipoint soil moisture detecting and irrigating integrated device according to claim 1, characterized in that: An O-ring is provided between the flange mating surface connecting the vertical insertion tube and the horizontal handle; a silicone sealing gasket is provided at the threaded connection between the horizontal handle and the sealing end cap, the silicone sealing gasket is fixedly set on the inner side of the sealing end cap, and the silicone sealing gasket is tightly fitted to the end face of the horizontal handle.

3. The T-shaped multipoint soil moisture detecting and irrigating integrated device according to claim 2, characterized in that: The dynamic sealing assembly includes a dustproof ring and a Y-shaped sealing ring arranged sequentially; both the dustproof ring and the Y-shaped sealing ring are sleeved on the outer wall of the transmission rod, and the outer walls of the dustproof ring and the Y-shaped sealing ring are tightly fitted to the inner wall of the second connecting hole; the dynamic sealing ring inside the sensor protrusion hole is made of fluororubber, and the cross-section of the dynamic sealing ring is U-shaped; a torsion spring is provided at the hinge between the soil-proof plate and the outer wall of the vertical insertion tube, one end of the torsion spring is fixedly connected to the soil-proof plate, and the other end of the torsion spring is fixedly connected to the outer wall of the vertical insertion tube.

4. The T-shaped multipoint soil moisture detecting and irrigating integrated device according to claim 3, characterized in that: The irrigation module has a sealing gasket on the inner wall of its inlet, which fits tightly against the outer wall of the external water pipe. The elastic anti-clogging sleeve is made of silicone, and its inner side has three elastic flaps extending towards the center. In its natural state, the three elastic flaps fit together to seal the irrigation outlet. Under water pressure, the three elastic flaps open outward to open the irrigation outlet. The sealing joint between the independent irrigation channel and the main irrigation channel is a pagoda joint. Both the connection between the pagoda joint and the independent irrigation channel, and the connection between the pagoda joint and the main irrigation channel, are equipped with hose clamps. The hose clamps fix the pagoda joint to the independent irrigation channel and the pagoda joint to the main irrigation channel, respectively.

5. The T-shaped multi-point soil moisture detection and irrigation integrated device according to claim 4, characterized in that: The control circuit board of the control module integrates a microcontroller, a relay module, and a wireless communication unit; the wireless communication unit is a LoRa module or a Bluetooth module; the outer wall of the horizontal grip is provided with a display screen, which is electrically connected to the control circuit board, and the display screen is used to display the humidity data detected by the humidity sensor; the operation switch is a self-resetting button switch, and a sealing ring is provided at the mating point between the operation switch and the operation hole of the horizontal grip, the sealing ring being fitted onto the outer wall of the operation switch and tightly fitting against the inner wall of the operation hole.

6. The T-shaped multipoint soil moisture detecting and irrigating integrated device according to claim 5, characterized in that: Each drive chamber of the vertical insertion tube has an axial guide groove on its inner wall; each driven slider has a guide boss on its outer wall that matches the guide groove, and the guide boss is slidably disposed in the guide groove; the driven slider is connected to the probe tail of the humidity sensor by a snap-fit; three brackets are fixedly provided on the inner wall of the sealed equipment chamber, and the fixed ends of the three waterproof miniature electric push rods are respectively fixedly connected to the three brackets; the transmission rod is threadedly connected to the push rod end of the waterproof miniature electric push rod, and the transmission rod is threadedly connected to the driven slider.

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