Intelligent farmland soil moisture content monitoring and water and fertilizer regulation and control equipment

Abstract

The invention discloses intelligent farmland soil moisture content monitoring and water and fertilizer regulation and control equipment, and belongs to the technical field of forest breeding and fertilization, the intelligent farmland soil moisture content monitoring and water and fertilizer regulation and control equipment comprises a cylinder, a mounting seat is fixedly mounted at the top end of the cylinder, and a drill bit is fixedly mounted at the bottom end of the cylinder. The drill bit is arranged at the bottom end of the barrel, the spray hole is formed in the drill bit, the drill bit is used in cooperation with the water injection mechanism, in the installation process, the adjusting ring is held by hand to control rotary insertion of the barrel, installation is more convenient, and in the installation process, the insertion groove larger than the barrel diameter can be formed through impact of water flow; the sensor probe extends out of the cylinder body through the telescopic mechanism, the sensor probe does not make contact with the inner wall of the insertion groove, finally, the filter cylinder is used for screening soil and falling the soil into the insertion groove containing water, the sensor probe is buried, monitoring operation is conducted after the soil is dried, the contact effect of the sensor probe and the soil is guaranteed, and the monitoring efficiency is improved. And in addition, a contact type measurement mode is adopted, so that the measurement result is more accurate.

Description

Technical Field

[0001] The invention relates to a soil moisture monitoring and water-fertilizer regulating device, in particular to an intelligent farmland soil moisture monitoring and water-fertilizer regulating device, belonging to the technical field of forest tree breeding and fertilization. Background Art

[0002] Soil moisture monitoring and water-fertilizer regulation are the core technologies of modern precision agricultural management. By dynamically grasping the distribution and change patterns of soil moisture in real time, they provide a scientific basis for irrigation decisions, achieve efficient use of water resources and prevent drought and flood disasters. At the same time, based on the growth needs of crops, they accurately regulate the supply of nutrients such as nitrogen, phosphorus and potassium, improve fertilizer utilization through water-fertilizer integration technology, improve soil environment, promote high-quality and high-yield crops, and ultimately achieve the multiple goals of cost saving, efficiency improvement, ecological protection and sustainable development.

[0003] In the prior art, for example, a patent with application number 202120963173.9 discloses a soil moisture monitoring station for intelligent water, fertilizer and water-saving irrigation. In order to solve the problem in the prior art that it is impossible to monitor soil moisture in real time and irrigate in time during the growth of plants, by simultaneously collecting and monitoring soil and atmospheric data information in the irrigation area, it is possible to realize real-time regulation of irrigation and fertilization in the irrigation area, meet the growth and development requirements of crops in the irrigation area, and help improve the irrigation and improvement effects of the soil. At the same time, the collected soil and atmospheric information can help establish an evaporation and transpiration model, and provide data support for on-demand irrigation operations under the irrigation scheduling framework of the irrigation area.

[0004] Similar to the above application, there are still some shortcomings:

[0005] At present, during the installation process of the tubular soil moisture detector, it is necessary to use a soil drill to open holes and a soil screen to screen and backfill the soil. This is not only inconvenient to operate, but also takes a long time to install if the soil in the installation area is hard. The practicality is low, and during the measurement process, the soil moisture content is measured by measuring the pressure or capacitance changes in the soil profile, which results in a certain measurement error.

[0006] Therefore, an intelligent farmland soil moisture monitoring and water-fertilizer regulation equipment is designed to optimize the above problems. Summary of the invention

[0007] The main purpose of the present invention is to provide an intelligent farmland soil moisture monitoring and water and fertilizer regulation equipment.

[0008] The purpose of the present invention can be achieved by adopting the following technical solutions:

[0009] An intelligent farmland soil moisture monitoring and water and fertilizer regulation device comprises a cylinder, a mounting seat is fixedly installed on the top of the cylinder, a drill bit is fixedly installed on the bottom of the cylinder, a spray hole is obliquely opened inside the drill bit, a water injection mechanism for supplying water to the spray hole is arranged on the top of the cylinder and the mounting seat, a water and fertilizer spraying mechanism is arranged on the top of the mounting seat, an adjusting ring is fixed on the top of the outer side of the cylinder, sensor probes are arranged on different horizontal surfaces inside the cylinder, a telescopic mechanism for controlling the horizontal sliding of the sensor probe is arranged inside the cylinder, a through hole matched with the sensor probe is opened on the outer side of the cylinder, a reinforcement mechanism is evenly arranged on the top of the outer side of the cylinder, a filter cartridge is rotatably installed on the top of the outer side of the cylinder above the adjusting ring, a support rod is vertically installed above the mounting seat, a control box is arranged on the side of the support rod, a solar panel is installed on the top of the support rod, the sensor probe is electrically connected to a data acquisition host inside the control box through a wire, the data acquisition host is electrically connected to a controller inside the control box through a wire, and the control box is electrically connected to the water and fertilizer spraying mechanism through a wire.

[0010] Preferably: the water injection mechanism includes a guide pipe, a confluence water tank, a rotary joint, a water inlet pipe and a switch valve, the confluence water tank is located at the top of the mounting seat, a rotary joint is provided between the bottom end of the confluence water tank and the top of the mounting seat, the top of the rotary joint is communicated with the interior of the confluence water tank, a guide pipe is installed at the bottom end of the rotary joint, the guide pipe extends to the interior of the cylinder and is communicated with the top of the spray hole, a water inlet pipe is installed on the outside of the confluence water tank, a switch valve is provided on the water inlet pipe, the bottom end of the support rod is threadedly installed on the top of the confluence water tank, and a positioning mechanism is provided between the bottom of the confluence water tank and the mounting seat.

[0011] Preferably: a threaded column is provided at the middle position of the top of the confluence water bin, and a threaded hole is provided at the bottom end of the support rod.

[0012] Preferably: the positioning mechanism includes a groove, a positioning ring and a positioning bolt, the groove is opened at the top of the mounting seat, a positioning ring is fixed to the bottom end of the confluence water bin, the positioning ring is located inside the groove, and positioning bolts are evenly installed on the mounting seat outside the groove, and the end of the positioning bolt extends to the inside of the groove and contacts with the positioning ring.

[0013] Preferably: the water and fertilizer spraying mechanism includes a middle partition, a shunt pipe, a solenoid valve, a drain pipe, a fixed socket and a rotating nozzle. The middle partition is horizontally fixed inside the confluence water bin, the end of the water inlet pipe is located below the middle partition, a shunt pipe is installed between the top of the water inlet pipe and the top of the confluence water bin, a solenoid valve is provided on the shunt pipe, a drain pipe is installed on the top of the outer side of the confluence water bin, rotating nozzles are evenly installed on the drain pipe, fixed sockets are installed at the bottom of the rotating nozzles, and the solenoid valve is connected to the controller in the control box through a wire.

[0014] Preferably, the reinforcement mechanism includes a cross bar, a limiting ring, a plug rod and a locking assembly. The cross bar is uniformly fixed on the outer side of the cylinder body along the circumference. Limiting rings are installed at the ends of the cross bar. Plug rods are vertically inserted into the inside of the limiting rings. A locking assembly for positioning the plug rod is provided on the inner side of the limiting ring.

[0015] Preferably, the locking assembly includes a U-shaped guide groove and a positioning post. The U-shaped guide groove is vertically opened on the outer side of the plug rod. A positioning post is slidably arranged inside the U-shaped guide groove. The positioning post is fixed on the inner side of the limiting ring.

[0016] Preferably, there are four groups of plug rods. Pressure blocks are fixed at the tops of the plug rods. The diameter of the pressure block is larger than the diameter of the plug rod.

[0017] Preferably, the telescopic mechanism includes an annular support plate, a strip groove, a first slider, a mounting block, a sleeve, a polygonal cone block, an inclined groove, a second slider and a lifting assembly. The annular support plates are uniformly fixed on different planes on the inner side of the cylinder body. Strip grooves are uniformly opened at the tops of the annular support plates. First sliders are slidably installed inside the strip grooves. Mounting blocks are fixed at the tops of the first sliders. The sensor probe is fixed on the side of the mounting block. A sleeve is vertically installed inside the cylinder body. Polygonal cone blocks are uniformly fixed on the outer side of the sleeve. Inclined grooves are uniformly opened on the outer sides of the polygonal cone blocks. Second sliders are slidably arranged inside the inclined grooves. The second sliders are all fixed on the mounting block. A lifting assembly for controlling the up and down movement of the sleeve is provided inside the cylinder body.

[0018] Preferably, the lifting assembly includes a fixing ring, a retaining ring, a return spring, a pulling rope and a collar. The fixing ring is fixed at the top of the sleeve. A retaining ring is horizontally fixed at the inner top of the cylinder body. A return spring is provided between the top of the fixing ring and the retaining ring. Pulling ropes are uniformly arranged at the top of the fixing ring. The pulling ropes slide out through the inside of the cross bar and the limiting ring. A collar is rotatably installed at the bottom end of the plug rod. The end of the pulling rope is fixedly connected to the outer side of the collar.

[0019] The beneficial effects of the present invention are as follows:

[0020] An intelligent farmland soil moisture monitoring and water and fertilizer regulation device provided by the present invention is used in cooperation with a water injection mechanism composed of a drill bit arranged at the bottom end of the cylinder body, with spray holes opened inside the drill bit, a diversion pipe, a confluence water tank, a rotary joint, a water inlet pipe and a switching valve. During the installation process, hold the adjusting ring to control the rotation and insertion of the cylinder body. The installation is not only more convenient, but also uses the water flow to impact out a slot larger than the cylinder diameter during the installation process. Then, use the telescopic mechanism to extend the sensor probe to the outside of the cylinder body. The sensor probe does not contact the inner wall of the slot. Finally, use the filter cylinder to screen the soil and fall into the water-containing slot to bury the sensor probe. After the soil dries, the monitoring operation is carried out. This not only ensures the contact effect between the sensor probe and the soil, avoids the interference of stones, but also uses a contact measurement method, making the measurement results more accurate;

[0021] By evenly arranging a reinforcement mechanism composed of cross bars, limit rings, insertion rods, U-shaped guide grooves, and positioning columns on the outside of the cylinder body, the stability during device installation can be improved. In addition, the use of the reinforcement mechanism, in cooperation with a telescopic mechanism composed of an annular support plate, strip-shaped grooves, first sliders, mounting blocks, sleeves, polygon cones, inclined grooves, second sliders, fixed rings, retaining rings, return springs, pull ropes, and collar rings, can automatically control the extension of the sensor probe, making installation and use more convenient;

[0022] By arranging a water and fertilizer spraying mechanism composed of an intermediate partition, shunt pipes, solenoid valves, drain pipes, fixed sockets, and rotary nozzles on the confluence water storage tank, and electrically connecting the solenoid valves to the controller inside the control box, the solenoid valves can be automatically controlled to open in the case of dry soil for water and fertilizer supplementation, making it more intelligent and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a sectional view of the installation state of a preferred embodiment in an intelligent farmland soil moisture monitoring and water and fertilizer regulation device of the present invention;

[0024] Figure 2 It is a sectional view of the cylinder body of a preferred embodiment in an intelligent farmland soil moisture monitoring and water and fertilizer regulation device of the present invention;

[0025] Figure 3 It is a front view of the cylinder body of a preferred embodiment in an intelligent farmland soil moisture monitoring and water and fertilizer regulation device of the present invention;

[0026] Figure 4 It is a partial structure diagram of the top of the cylinder body of a preferred embodiment in an intelligent farmland soil moisture monitoring and water and fertilizer regulation device of the present invention;

[0027] Figure 5 It is a preferred embodiment in an intelligent farmland soil moisture monitoring and water and fertilizer regulation device of the present invention Figure 2 Enlarged view at A;

[0028] Figure 6 It is a front view of the insertion rod of a preferred embodiment in an intelligent farmland soil moisture monitoring and water and fertilizer regulation device of the present invention;

[0029] Figure 7 It is a sectional view of the confluence water storage tank of a preferred embodiment in an intelligent farmland soil moisture monitoring and water and fertilizer regulation device of the present invention;

[0030] Figure 8 It is a diagram of the water and fertilizer spraying mechanism of a preferred embodiment in an intelligent farmland soil moisture monitoring and water and fertilizer regulation device of the present invention.

[0031] In the figure: 1, cylinder body; 2, mounting seat; 3, drill bit; 4, spray hole; 5, diversion pipe; 6, confluent water storage bin; 7, rotary joint; 8, water inlet pipe; 9, switch valve;

[0032] 10, water and fertilizer spraying mechanism; 1001, middle partition board; 1002, shunt pipe; 1003, solenoid valve; 1004, drain pipe; 1005, fixed socket; 1006, rotary spray head;

[0033] 11, adjusting ring; 12, sensor probe;

[0034] 13, telescopic mechanism; 1301, annular supporting plate; 1302, strip-shaped groove; 1303, first slider; 1304, mounting block; 1305, sleeve; 1306, polygonal cone block; 1307, inclined groove; 1308, second slider; 1309, fixed ring; 1310, retaining ring; 1311, return spring; 1312, pull rope; 1313, collar;

[0035] 14, reinforcement mechanism; 1401, cross bar; 1402, limiting ring; 1403, inserting rod; 1404, U-shaped guide groove; 1405, positioning post;

[0036] 15, support rod; 16, control box; 17, solar panel; 18, filter cartridge;

[0037] 19, positioning mechanism; 1901, groove; 1902, positioning ring; 1903, positioning bolt. Specific implementation manners

[0038] To make the technical personnel in this technical field more clear and definite about the technical solution of the present invention, the present invention will be further described in detail below in conjunction with embodiments and the accompanying drawings, but the implementation manners of the present invention are not limited thereto.

[0039] As Figure 1-Figure 8As shown, this embodiment provides an intelligent farmland soil moisture monitoring and water and fertilizer regulation device, including a cylinder 1, a mounting seat 2 is fixedly installed on the top of the cylinder 1, a drill bit 3 is fixedly installed on the bottom of the cylinder 1, a spray hole 4 is obliquely opened inside the drill bit 3, a water injection mechanism for supplying water to the spray hole 4 is provided on the top of the cylinder 1 and the mounting seat 2, a water and fertilizer spraying mechanism 10 is provided on the top of the mounting seat 2, an adjusting ring 11 is fixed on the top of the outer side of the cylinder 1, sensor probes 12 are provided on different horizontal surfaces inside the cylinder 1, and a telescopic mechanism 13 for controlling the horizontal sliding of the sensor probe 12 is provided inside the cylinder 1, and the cylinder 1 is provided with a plurality of screw terminals, and the plurality of screw terminals are provided with a plurality of screw terminals. A through hole cooperating with the sensor probe 12 is opened on the outside of the cylinder 1, a reinforcement mechanism 14 is evenly arranged on the top of the outside of the cylinder 1, a filter cartridge 18 is rotatably installed on the top of the outside of the cylinder 1 above the adjusting ring 11, a support rod 15 is vertically installed above the mounting seat 2, a control box 16 is provided on the side of the support rod 15, and a solar panel 17 is installed on the top of the support rod 15. The sensor probe 12 is electrically connected to a data acquisition host inside the control box 16 through a wire, the data acquisition host is electrically connected to a controller inside the control box 16 through a wire, and the control box 16 is electrically connected to the water and fertilizer spraying mechanism 10 through a wire.

[0040] The general working principle: during the installation process, first find the installation position, then hold the adjustment ring 11 to vertically insert the drill bit 3 at the bottom of the cylinder 1 into the ground, and use the water injection mechanism to inject water into the spray hole 4 at the same time. The water in the spray hole 4 is sprayed out at an angle, which can not only moisten the soil, but also flush the soil out. The drilled slot will be larger than the outer diameter of the cylinder 1. When the cylinder 1 is inserted to the preset depth, because the inner diameter of the slot is larger than the cylinder 1, the outside of the cylinder 1 and the inner wall of the slot are filled with water. Then, the reinforcement mechanism 14 is used to vertically fix the position of the cylinder 1, and then the telescopic mechanism 13 is used to horizontally push out multiple groups of sensor probes 12 on different planes. The sensor probes 12 are inserted between the slot and the cylinder 1. It does not fit the inner wall of the slot, and then dry soil is injected into the filter cartridge 18. The fine soil filtered out by the filter cartridge 18 falls into the gap between the slot and the cylinder body 1, and buries the sensor probe 12. When the soil overflows the top of the slot, the filling is stopped, and after waiting for the soil to dry, the equipment is turned on for monitoring. The sensor probe 12 includes a probe for a temperature and humidity sensor and a probe for a PH sensor. Therefore, during monitoring, the sensor probe 12 detects the temperature, humidity and PH value of the soil on different planes, and then transmits them to the data acquisition host inside the control box 16. At the same time, the controller analyzes the data. If the degree of dryness of the soil reaches the set threshold, the water and fertilizer spraying mechanism 10 sprays water and fertilizer.

[0041] In this embodiment, the water injection mechanism includes a guide pipe 5, a confluence water tank 6, a rotary joint 7, a water inlet pipe 8 and a switch valve 9. The confluence water tank 6 is located at the top of the mounting seat 2. A rotary joint 7 is provided between the bottom end of the confluence water tank 6 and the top of the mounting seat 2. The top of the rotary joint 7 is connected to the interior of the confluence water tank 6. The bottom end of the rotary joint 7 is installed with a guide pipe 5. The guide pipe 5 extends to the interior of the cylinder 1 and is connected to the top of the spray hole 4. The outer side of the confluence water tank 6 is installed with a water inlet pipe 8. The water inlet pipe 8 is provided with a switch valve 9. The bottom end of the support rod 15 is threadedly installed on the top of the confluence water tank 6. A positioning mechanism 19 is provided between the bottom of the confluence water tank 6 and the mounting seat 2.

[0042] Local working principle: During the installation of the device, the water inlet pipe 8 is connected to the water system, and then the switch valve 9 is opened, the water source is injected into the interior of the confluence water tank 6, and then enters the spray hole 4 through the guide pipe 5 and is discharged. In addition, when the control cylinder 1 is rotated and inserted, the use of the rotating joint 7 can avoid the entanglement of the pipeline.

[0043] In this embodiment, a threaded column is provided at the middle position of the top of the confluence water tank 6, and a threaded hole is provided at the bottom end of the support rod 15.

[0044] Partial working principle: After the cylinder 1 is installed and fixed, the support rod 15 is installed on the confluence water tank 6, and the solar panel 17 faces south.

[0045] In this embodiment, the positioning mechanism 19 includes a groove 1901, a positioning ring 1902 and a positioning bolt 1903. The groove 1901 is opened at the top of the mounting seat 2. The positioning ring 1902 is fixed to the bottom end of the confluence water tank 6. The positioning ring 1902 is located inside the groove 1901. The positioning bolts 1903 are evenly installed on the mounting seat 2 outside the groove 1901. The end of the positioning bolt 1903 extends to the inside of the groove 1901 and contacts with the positioning ring 1902.

[0046] Local working principle: After the support rod 15 is installed on the top of the confluence water tank 6, due to the rotational connection between the confluence water tank 6 and the mounting base 2, in order to ensure the stable position of the solar panel 17, the positioning bolt 1903 is tightened, and the positioning bolt 1903 squeezes and fixes the position of the positioning ring 1902, thereby fixing the position of the confluence water tank 6.

[0047] In this embodiment, the water and fertilizer spraying mechanism 10 includes an intermediate partition 1001, a shunt pipe 1002, a solenoid valve 1003, a drain pipe 1004, a fixed socket 1005, and a rotary nozzle 1006. The intermediate partition 1001 is horizontally fixed inside the confluence water storage tank 6. The end of the water inlet pipe 8 is located below the intermediate partition 1001. A shunt pipe 1002 is installed between the top of the water inlet pipe 8 and the top of the confluence water storage tank 6. A solenoid valve 1003 is provided on the shunt pipe 1002. The drain pipe 1004 is installed at the top outside the confluence water storage tank 6. Rotary nozzles 1006 are uniformly installed on the drain pipe 1004. Fixed sockets 1005 are installed at the bottoms of the rotary nozzles 1006. The solenoid valve 1003 is connected to the controller in the control box 16 through a wire.

[0048] Local working principle: After the installation of the cylinder 1, the fixed sockets 1005 are uniformly fixed in the farmland. When the dryness degree of the soil reaches the set threshold, the controller controls the opening of the solenoid valve 1003. The water and fertilizer enter the top of the confluence water storage tank 6 and then are discharged from the rotary nozzles 1006 to irrigate and fertilize the farmland.

[0049] In this embodiment, the reinforcement mechanism 14 includes a cross bar 1401, a limit ring 1402, a plug rod 1403, and a locking assembly. The cross bar 1401 is uniformly fixed on the outside of the cylinder 1 along the circumferential direction. Limit rings 1402 are installed at the ends of the cross bar 1401. Plug rods 1403 are vertically inserted into the inside of the limit rings 1402. A locking assembly for positioning the plug rod 1403 is provided on the inner side of the limit ring 1402.

[0050] Local working principle: When the cylinder 1 is inserted to the required depth of movement, at this time, the bottom of the limit ring 1402 contacts the soil. Then, by stepping on it, multiple plug rods 1403 are inserted into the soil. After the insertion is completed, the locking assembly is used to limit the position of the plug rod 1403.

[0051] In this embodiment, the locking assembly includes a U-shaped guide groove 1404 and a positioning column 1405. The U-shaped guide groove 1404 is vertically opened on the outside of the plug rod 1403. A positioning column 1405 is slidably arranged inside the U-shaped guide groove 1404. The positioning column 1405 is fixed on the inner side of the limit ring 1402.

[0052] Local working principle: In the initial state, the positioning column 1405 on the inner side of the limit ring 1402 is at the bottom end of the U-shaped guide groove 1404. When installing by insertion, first rotate the plug rod 1403 to position the positioning column 1405 in the vertical groove of the U-shaped guide groove 1404, and then vertically insert the plug rod 1403. After the insertion is completed, rotate the plug rod 1403 again to lock the positioning column 1405 at the top end of the U-shaped guide groove 1404 to prevent the plug rod 1403 from being maliciously pulled out.

[0053] In this embodiment, four groups of insertion rods 1403 are provided, and a pressure block is fixed at the top of each of the insertion rods 1403 , and the diameter of the pressure block is larger than the diameter of the insertion rod 1403 .

[0054] Partial working principle: By using multiple groups of insertion rods 1403, the insertion stability of the cylinder 1 can be improved.

[0055] In this embodiment, the telescopic mechanism 13 includes an annular support plate 1301, a strip groove 1302, a first slider 1303, a mounting block 1304, a sleeve 1305, a polygonal cone block 1306, an inclined groove 1307, a second slider 1308 and a lifting assembly. The annular support plate 1301 is evenly fixed on different planes inside the cylinder 1, and the top of the annular support plate 1301 is evenly provided with a strip groove 1302. The inside of the strip groove 1302 is slidably installed with a first slider 1303. The top of the first slider 1303 The parts are all fixed with mounting blocks 1304, the sensor probe 12 is fixed on the side of the mounting block 1304, a sleeve 1305 is vertically installed inside the cylinder 1, polygonal cone blocks 1306 are evenly fixed on the outside of the sleeve 1305, and inclined grooves 1307 are evenly opened on the outside of the polygonal cone blocks 1306. The inside of the inclined grooves 1307 are all slidably provided with second sliders 1308, and the second sliders 1308 are all fixed on the mounting block 1304. A lifting component for controlling the up and down movement of the sleeve 1305 is provided inside the cylinder 1.

[0056] Local working principle: When the sensor probe 12 is pushed out, the lifting assembly is used to control the sleeve 1305 to move upward. The upward movement of the sleeve 1305 simultaneously drives multiple groups of polygonal cone blocks 1306 to move upward. During the upward movement of the polygonal cone blocks 1306, the mounting block 1304 is pushed out horizontally, and then the end of the sensor probe 12 is pushed out of the cylinder 1. When the device is dismantled, the lifting assembly is used to control the downward movement of the sleeve 1305, and the sensor probe 12 can be horizontally pulled into the interior of the cylinder 1 for hiding.

[0057] In this embodiment, the lifting assembly includes a fixing ring 1309, a retaining ring 1310, a return spring 1311, a pull rope 1312 and a ring 1313. The fixing ring 1309 is fixed at the top of the sleeve 1305. The retaining ring 1310 is horizontally fixed at the inner top of the cylinder 1. A return spring 1311 is provided between the top of the fixing ring 1309 and the retaining ring 1310. Pull ropes 1312 are evenly provided on the top of the fixing ring 1309. The pull ropes 1312 slide out from the inside of the cross bar 1401 and the limit ring 1402. The ring 1313 is rotatably installed at the bottom end of the insertion rod 1403, and the end of the pull rope 1312 is fixedly connected to the outside of the ring 1313.

[0058] Local working principle: When the insertion rod 1403 is inserted into the soil, it will drive the pull rope 1312 to move downward, and the pull rope 1312 will pull the sleeve 1305 upward. Therefore, after the device is fixed, the extension of the sensor probe 12 will be automatically controlled. During the upward movement of the sleeve 1305, the reset spring 1311 between the fixing ring 1309 and the retaining ring 1310 will be compressed. Therefore, when the device is removed, the insertion rod 1403 is pulled up, and the reset spring 1311 will control the downward movement and reset of the sleeve 1305 to retract the sensor probe 12.

[0059] The above description is only a further embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and concepts of the present invention within the scope disclosed by the present invention, which belong to the protection scope of the present invention.

Claims

1. An intelligent farmland soil moisture monitoring and water and fertilizer regulation device, comprising a cylinder (1), characterized in that: A mounting seat (2) is fixedly mounted on the top of the cylinder (1), a drill bit (3) is fixedly mounted on the bottom of the cylinder (1), a spray hole (4) is obliquely opened inside the drill bit (3), a water injection mechanism for supplying water to the spray hole (4) is provided on the top of the cylinder (1) and the mounting seat (2), a water and fertilizer spraying mechanism (10) is provided on the top of the outer side of the cylinder (1), sensor probes (12) are provided on different horizontal planes inside the cylinder (1), a telescopic mechanism (13) for controlling the horizontal sliding of the sensor probe (12) is provided inside the cylinder (1), and a telescopic mechanism (13) for controlling the horizontal sliding of the sensor probe (12) is provided on the outer side of the cylinder (1). ) through holes matched with the cylindrical body (1), the top of the outer side of the cylindrical body (1) is evenly provided with a reinforcement mechanism (14), the top of the outer side of the cylindrical body (1) is located above the adjusting ring (11) and a filter cartridge (18) is rotatably installed, a support rod (15) is vertically installed above the mounting seat (2), a control box (16) is provided on the side of the support rod (15), a solar panel (17) is installed on the top of the support rod (15), the sensor probe (12) is electrically connected to a data acquisition host inside the control box (16) through a wire, the data acquisition host is electrically connected to a controller inside the control box (16) through a wire, and the control box (16) is electrically connected to a water and fertilizer spraying mechanism (10) through a wire.

2. The intelligent farmland soil moisture monitoring and water and fertilizer regulation equipment according to claim 1 is characterized by: The water injection mechanism comprises a guide pipe (5), a confluence water tank (6), a rotary joint (7), a water inlet pipe (8) and a switch valve (9); the confluence water tank (6) is located at the top of the mounting seat (2); a rotary joint (7) is provided between the bottom end of the confluence water tank (6) and the top of the mounting seat (2); the top end of the rotary joint (7) is connected to the inside of the confluence water tank (6); the bottom end of the rotary joint (7) is provided with a guide pipe (5); the guide pipe (5) extends to the inside of the cylinder (1) and is connected to the top end of the spray hole (4); the outside of the confluence water tank (6) is provided with a water inlet pipe (8); the water inlet pipe (8) is provided with a switch valve (9); the bottom end of the support rod (15) is threadedly installed on the top of the confluence water tank (6); a positioning mechanism (19) is provided between the bottom of the confluence water tank (6) and the mounting seat (2).

3. The intelligent farmland soil moisture monitoring and water and fertilizer regulation equipment according to claim 2 is characterized by: A threaded column is provided at the middle position of the top of the confluence water bin (6), and a threaded hole is provided at the bottom end of the support rod (15).

4. The intelligent farmland soil moisture monitoring and water and fertilizer regulation equipment according to claim 2 is characterized by: The positioning mechanism (19) comprises a groove (1901), a positioning ring (1902) and a positioning bolt (1903); the groove (1901) is formed at the top of the mounting seat (2); the positioning ring (1902) is fixed to the bottom end of the confluence water tank (6); the positioning ring (1902) is located inside the groove (1901); positioning bolts (1903) are evenly installed on the mounting seat (2) outside the groove (1901); the ends of the positioning bolts (1903) extend into the interior of the groove (1901) and contact the positioning ring (1902).

5. The intelligent farmland soil moisture monitoring and water and fertilizer regulation equipment according to claim 2 is characterized by: The water and fertilizer spraying mechanism (10) includes an intermediate partition (1001), a shunt pipe (1002), a solenoid valve (1003), a drain pipe (1004), a fixed socket (1005) and a rotary nozzle (1006). The intermediate partition (1001) is horizontally fixed inside the confluent water tank (6). The end of the water inlet pipe (8) is located below the intermediate partition (1001). A shunt pipe (1002) is installed between the top of the water inlet pipe (8) and the top of the confluent water tank (6). A solenoid valve (1003) is provided on the shunt pipe (1002). A drain pipe (1004) is installed at the top outside the confluent water tank (6). Rotary nozzles (1006) are evenly installed on the drain pipe (1004). Fixed sockets (1005) are installed at the bottoms of the rotary nozzles (1006). The solenoid valve (1003) is connected to the controller in the control box (16) through a wire.

6. An intelligent farmland soil moisture monitoring and water and fertilizer regulation device according to any one of claims 1 to 5, characterized in that: The reinforcement mechanism (14) includes a cross bar (1401), a limit ring (1402), a plug rod (1403) and a locking assembly. The cross bar (1401) is evenly fixed along the circumferential direction outside the cylinder body (1). Limit rings (1402) are installed at the ends of the cross bar (1401). Plug rods (1403) are vertically inserted inside the limit rings (1402). A locking assembly for positioning the plug rods (1403) is provided inside the limit rings (1402).

7. The intelligent farmland soil moisture monitoring and water and fertilizer regulation equipment according to claim 6 is characterized by: The locking assembly includes a U-shaped guide groove (1404) and a positioning post (1405). The U-shaped guide groove (1404) is vertically opened on the outside of the plug rod (1403). A positioning post (1405) is slidably arranged inside the U-shaped guide groove (1404). The positioning post (1405) is fixed inside the limit ring (1402).

8. The intelligent farmland soil moisture monitoring and water and fertilizer regulation equipment according to claim 7 is characterized by: There are four groups of plug rods (1403). Press blocks are fixed at the tops of the plug rods (1403). The diameter of the press blocks is larger than that of the plug rods (1403).

9. The intelligent farmland soil moisture monitoring and water and fertilizer regulation equipment according to claim 7 is characterized by: The telescopic mechanism (13) includes an annular support plate (1301), a strip-shaped groove (1302), a first slider (1303), a mounting block (1304), a sleeve (1305), a polygonal cone block (1306), an inclined groove (1307), a second slider (1308) and a lifting assembly. The annular support plates (1301) are evenly fixed on different planes inside the cylinder body (1). Strip-shaped grooves (1302) are evenly opened at the tops of the annular support plates (1301). First sliders (1303) are slidably installed inside the strip-shaped grooves (1302). Mounting blocks (1304) are fixed at the tops of the first sliders (1303). The sensor probe (12) is fixed on the side of the mounting block (1304). A sleeve (1305) is vertically installed inside the cylinder body (1). Polygonal cone blocks (1306) are evenly fixed on the outside of the sleeve (1305). Inclined grooves (1307) are evenly opened on the outside of the polygonal cone blocks (1306). Second sliders (1308) are slidably arranged inside the inclined grooves (1307). The second sliders (1308) are all fixed on the mounting block (1304). A lifting assembly for controlling the up and down movement of the sleeve (1305) is provided inside the cylinder body (1).

10. The intelligent farmland soil moisture monitoring and water and fertilizer regulation equipment according to claim 9, characterized in that: The lifting assembly comprises a fixing ring (1309), a retaining ring (1310), a return spring (1311), a pull rope (1312) and a collar (1313); the fixing ring (1309) is fixed at the top of the sleeve (1305); a retaining ring (1310) is horizontally fixed at the inner top of the cylinder (1); a return spring (1311) is provided between the top of the fixing ring (1309) and the retaining ring (1310); pull ropes (1312) are evenly provided at the top of the fixing ring (1309); the pull ropes (1312) slide out from the inside of the cross bar (1401) and the limiting ring (1402); the collar (1313) is rotatably installed at the bottom end of the insertion rod (1403); and the end of the pull rope (1312) is fixedly connected to the outside of the collar (1313).

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