Farmland irrigation monitoring device based on soil water potential

Abstract

The invention relates to the technical field of agricultural equipment, and discloses a farmland irrigation monitoring device based on soil water potential, which comprises irrigation detection equipment, a mounting sleeve is detachably connected to the exterior of a stand column of the irrigation detection equipment, a mainframe box body is fixedly connected to the exterior of the mounting sleeve, and a mounting mechanism is arranged in the mainframe box body. The mounting mechanism is used for mounting electronic components, a dust discharging mechanism is arranged at the top of the mounting mechanism, the dust discharging mechanism is used for discharging dust in the mainframe box body by utilizing gas provided by the mounting mechanism, and a dustproof mechanism is arranged at the top of the mainframe box body. Through the cooperation of the mounting mechanism and the dust discharging mechanism, electronic elements can be moved out of the case body when the electronic elements in the case body are mounted, replaced or overhauled, so that the operation space can be expanded, and the efficiency of mounting, overhauling or replacing the electronic elements in the case body of the case is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of agricultural equipment, in particular to a farmland irrigation monitoring device based on soil water potential. BACKGROUND

[0002] The farmland irrigation monitoring device based on soil water potential can capture the soil moisture energy state in real time through the water potential sensor buried in the soil, and analyze the irrigation demand in combination with the farmland crop water demand model after processing by the data acquisition module in the host box. The device contains a host box, integrates a power supply, a communication and control unit, and can realize automatic irrigation by linking a valve. Wireless transmission is supported, and the remote platform can display data in real time. The degree of crop water shortage can be accurately judged by soil water potential, waste or deficiency caused by traditional experience-based irrigation can be avoided, water resource utilization rate can be improved, and the device is suitable for intelligent irrigation management of various farmlands.

[0003] In the prior art farmland irrigation monitoring device based on soil water potential, the host box is mainly opened by rotating the front side door, and the electronic components are installed in the interior of the host box body. However, the space in the interior of the host box body is limited, which leads to the fact that when the electronic components are installed, repaired or replaced, tools are needed for detecting or disassembling the electronic components, which leads to the fact that the tools are inconvenient to use in the narrow space in the interior of the box body, and the installation, repair or replacement of the electronic components is time-consuming and laborious, and the efficiency of the installation, repair or replacement of the electronic components in the interior of the host box is reduced. SUMMARY

[0004] In view of the deficiencies of the prior art, the present application provides a farmland irrigation monitoring device based on soil water potential, which solves the problem that the space in the interior of the host box body is limited in the prior art farmland irrigation monitoring device based on soil water potential, which leads to the fact that it is inconvenient to use tools to install, repair or replace the electronic components in the interior of the box body, and reduces the efficiency of the installation, repair or replacement of the electronic components.

[0005] To achieve the above purpose, the present application is implemented by the following technical scheme: a farmland irrigation monitoring device based on soil water potential, comprising an irrigation detection device, a mounting sleeve is detachably connected to the outside of the stand column of the irrigation detection device, a host box body is fixedly connected to the outside of the mounting sleeve, an installation mechanism is arranged in the interior of the host box body, the installation mechanism is used for installing electronic components, a dust removal mechanism is arranged at the top of the installation mechanism, the dust removal mechanism removes dust in the interior of the host box body by using the gas provided by the installation mechanism, and a dustproof mechanism is arranged at the top of the host box body, the dustproof mechanism is used for filtering air entering the interior of the host box body.

[0006] Preferably, the installation mechanism comprises an installation hole plate arranged inside the main case body, upper and lower sides of the installation hole plate are fixedly connected with baffle plates, both sides of the main case body are fixedly connected with outer cylinders, the inner sides of the outer cylinders are slidably connected with pistons, the bottoms of the two pistons are fixedly connected with a connecting rod, the bottom outer side of the connecting rod is fixedly connected with a connecting handle, the top of the connecting handle is fixedly connected to the bottom of the lower baffle plate, and both ends of the connecting rod penetrate through the bottom of the outer cylinder.

[0007] Preferably, the dust removal mechanism comprises two top connectors, the outer sides of the two top connectors are fixedly connected to the top ends of the outer cylinders, the outer sides of the top connectors are rotatably connected with rotating tooth sleeves, the top ends of the top connectors and the rotating tooth sleeves are both provided with air grooves, the top of the rotating tooth sleeve is fixedly connected with a connecting cap pipe, the top of the connecting cap pipe is fixedly connected with a connecting pipe, both sides of the outer cylinder are provided with vertical pipes, the top of the outer cylinder is provided with a top pipe, the inner sides of the top pipe and the vertical pipes are both fixedly connected with a plurality of air injection pipes, the inner sides of the plurality of air injection pipes are fixedly connected to the outer side of the main case body, the outer top ends of the outer cylinders are fixedly connected with fixed sleeve, the inner sides of the fixed sleeve are slidably connected with sliding rings, the inner sides of the sliding rings are fixedly connected with pulling rods, the inner side of the fixed sleeve is provided with a reset spring, and one side of the pulling rod close to the rotating tooth sleeve is fixedly connected with a clamping plate.

[0008] Preferably, the dustproof mechanism comprises a filter cylinder, the bottom of the filter cylinder is fixedly connected to the top of the main case body, the top of the filter cylinder is rotatably connected with a rotating shaft, the top of the rotating shaft is fixedly connected with a wind-driven impeller, the outer side of the rotating shaft is fixedly connected with a mounting rotating frame, the inner sides of both sides of the mounting rotating frame are both provided with a plurality of abutting springs, the inner sides of both sides of the mounting rotating frame are both slidably connected with limiting plates, one side of the limiting plate away from the abutting spring is fixedly connected with a connecting plate, one end of the connecting plate away from the limiting plate is fixedly connected with a wiping brush, and the top of the lower baffle plate is fixedly connected with two dust extraction fans.

[0009] Preferably, the outer side of the upper baffle plate is slidably connected to the inner side of the main case body, and the outer side of the lower baffle plate is arranged inside the bottom end of the main case body.

[0010] Preferably, one end of the reset spring is fixedly connected to the inner side of the fixed sleeve, and the other end of the reset spring is fixedly connected to the side of the sliding ring away from the clamping plate.

[0011] Preferably, the clamping plate is engaged with the outer side of the rotating tooth sleeve, and the reset spring is sleeved on the outer side of the pulling rod.

[0012] Preferably, one end of the abutting spring is fixedly connected to the inside of the mounting turntable, and the other end of the abutting spring is fixedly connected to the side of the limiting plate away from the connecting plate.

[0013] Preferably, the connecting plate penetrates the side of the mounting turntable close to the filter cartridge, and the side of the wiping brush away from the connecting plate is in contact with the outside of the filter cartridge.

[0014] Preferably, the bottom of the irrigation detection device is fixedly connected with a mounting base, the side of the main box body close to the irrigation detection device is detachably connected with a sealing connecting pipe, and the side of the sealing connecting pipe away from the main box body is fixedly connected to the outside of the stand column of the irrigation detection device.

[0015] The application provides a farmland irrigation monitoring device based on soil water potential.

[0016] 1、The electronic element can be moved out of the inside of the box body when the electronic element is installed, replaced or repaired in the inside of the main box body, so that the operation space is enlarged, and therefore the electronic element can be installed, repaired or replaced by using tools, and the efficiency of the installation, repair or replacement of the electronic element in the inside of the main box body is improved.

[0017] 2、The dust in the inside of the box body can be discharged by using the sprayed gas when the electronic element is installed, repaired or replaced and then placed in the inside of the box body, and the dust attached to the electronic element can be blown down, so that the damage of the electronic element caused by the dust attached to the electronic element during the installation, repair or replacement is prevented, and the electronic element is protected.

[0018] 3、The air entering the inside of the box body can be filtered by the dustproof mechanism, and the air in the inside of the box body can be discharged by the dust extraction fan and replaced by the filtered air, so that the air in the inside of the box body is kept clean, the air cooling heat dissipation is realized by the flowing air, the damage of the electronic element caused by the dust is prevented, and the service life of the main box is prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a perspective view of the application;

[0020] Figure 2 It is a structure schematic view of the sealing connecting pipe in the application;

[0021] Figure 3 It is a structure schematic view of the main box body in the application;

[0022] Figure 4 It is a structure schematic view of the mounting hole plate in the application;

[0023] Figure 5 It is the internal structure schematic view of the outer tube in the application;

[0024] Figure 6 It is the structure schematic view of the top connecting piece in the application;

[0025] Figure 7 It is the internal structure schematic view of the fixed sleeve in the application;

[0026] Figure 8 It is the structure schematic view of the rotating shaft in the application;

[0027] Figure 9 It is the internal structure schematic view of the installation rotating frame in the application.

[0028] Among them, 1, irrigation detection equipment; 2, installation sleeve; 3, main machine box body; 4, installation mechanism; 401, installation hole plate; 402, baffle; 403, outer tube; 404, piston; 405, connecting rod; 406, connecting handle; 5, dust removal mechanism; 501, top connecting piece; 502, rotating tooth sleeve; 503, air groove; 504, connecting cap tube; 505, connecting tube; 506, vertical tube; 507, top tube; 508, air jet tube; 509, fixed sleeve; 510, sliding ring; 511, reset spring; 512, pull rod; 513, clamping plate; 6, dustproof mechanism; 601, filter cylinder; 602, rotating shaft; 603, air-driven impeller; 604, installation rotating frame; 605, abutting spring; 606, limiting plate; 607, connecting plate; 608, wiping brush; 609, dust extraction fan; 7, sealing connecting pipe; 8, installation base. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the application will be described clearly and completely below with reference to the drawings in the application description. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments. Based on the embodiments in the application, all the other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the application.

[0030] Please refer to the drawings in the application description Figure 1 - the drawings in the application description Figure 9The embodiment of the present application provides a kind of farmland irrigation monitoring device based on soil water potential, including irrigation detection equipment 1, the outside of the stand of irrigation detection equipment 1 is detachably connected with mounting sleeve 2, the outside of mounting sleeve 2 is fixedly connected with mainframe box body 3, the inside of mainframe box body 3 is provided with mounting mechanism 4, and mounting mechanism 4 is used to install electronic component, the top of mounting mechanism 4 is provided with dust removal mechanism 5, dust removal mechanism 5 is discharged with the gas provided by mounting mechanism 4 to the dust inside mainframe box body 3, the top of mainframe box body 3 is provided with dustproof mechanism 6, dustproof mechanism 6 is used to filter the air entering the inside of mainframe box body 3, the bottom of irrigation detection equipment 1 is fixedly connected with installation base 8, one side of mainframe box body 3 close to irrigation detection equipment 1 is detachably connected with sealed connector pipe 7, and one side of sealed connector pipe 7 away from mainframe box body 3 is fixedly connected to the outside of the stand of irrigation detection equipment 1.

[0031] The mounting mechanism 4 comprises a mounting hole plate 401 capable of providing a mounting position of electronic components, the mounting hole plate 401 is arranged in the inside of the mainframe box body 3, the upper and lower sides of the mounting hole plate 401 are fixedly connected with baffle plates 402, the top of the baffle plate 402 has a hole, which can realize ventilation, and when the upper baffle plate 402 reaches the highest point in the inside of the mainframe box body 3, there is space between the upper outer cylinder 403 and the inside of the mainframe box body 3, which is convenient for storing cables, the two sides of the mainframe box body 3 are fixedly connected with outer cylinders 403, the inside of the outer cylinder 403 is slidably connected with pistons 404, the bottoms of the two pistons 404 are fixedly connected with a connecting rod 405, the connecting rod 405 connects the pistons 404 and can drive the pistons 404 to move in the inside of the outer cylinder 403, the bottom of the connecting rod 405 is fixedly connected with a connecting handle 406 outside, the connecting handle 406 can drive the connecting rod 405 and the lower mounting hole plate 401 to move downwards, the top of the connecting handle 406 is fixedly connected to the bottom of the lower baffle plate 402, the two ends of the connecting rod 405 respectively penetrate through the bottom of the outer cylinder 403, the outside of the upper baffle plate 402 is slidably connected in the inside of the mainframe box body 3, and the outside of the lower baffle plate 402 is arranged in the bottom end of the inside of the mainframe box body 3. When the dust removal mechanism 5 is opened, the air pressure in the inside of the outer cylinder 403 is balanced, at this time, the connecting handle 406 can be pulled downwards, the connecting handle 406 drives the lower baffle plate 402 to move downwards, and then the mounting hole plate 401 and the upper baffle plate 402 can be pulled downwards, when the upper baffle plate 402 is pulled to the bottom end in the inside of the mainframe box body 3, the upper baffle plate 402 is blocked by the bottom end in the inside of the mainframe box body 3, so that the mounting hole plate 401 is prevented from being pulled out of the inside of the mainframe box body 3 completely, when the mounting hole plate 401 is pulled out of the inside of the mainframe box body 3, the electronic components on the mounting hole plate 401 can be repaired, mounted or replaced, since the mounting hole plate 401 is pulled out of the inside of the mainframe box body 3, the inner wall of the mainframe box body 3 does not block, and then the electronic components mounted on the mounting hole plate 401 can be repaired, mounted or replaced conveniently, when the electronic components are put into the inside of the mainframe box body 3, the connecting handle 406 is pushed upwards, and when the mounting hole plate 401 moves to the inside of the mainframe box body 3, the lower baffle plate 402 can be blocked, and the next time the baffle plate 402 can be blocked at the bottom of the mainframe box body 3, so that the mainframe box body 3 forms a closed space with the lower baffle plate 402, at the same time, when the connecting handle 406 moves upwards, the connecting rod 405 drives the piston 404 to move upwards, so that the air in the outer cylinder 403 is discharged into the inside of the mainframe box body 3 through the dust removal mechanism 5, and the dust cannot be attached to the electronic components in the inside of the mainframe box body 3 due to the rapid gas flow, or the dust during repair, mounting or replacement is blown down, so that the electronic components on the mounting hole plate 401 are prevented from being damaged,Turning off the dust discharging mechanism 5 makes the inside of the outer cylinder 403 not inhale gas again, so that the piston 404 cannot move downward under the action of air pressure, and then the connecting handle 406 cannot move downward, so that the bottom of the lower baffle 402 cannot move away from the bottom of the main case body 3, so that the mounting hole plate 401 and the electronic elements thereon can be installed in the inside of the main case body 3.

[0032] The dust discharging mechanism 5 comprises two top connecting pieces 501, the outer portions of the two top connecting pieces 501 are fixedly connected to the top end of the outer cylinder 403, the outer portions of the top connecting pieces 501 are rotatably connected with rotating tooth sleeves 502, the rotating tooth sleeves 502 can rotate on the outer portions of the top connecting pieces 501, the top end of each of the top connecting pieces 501 and the rotating tooth sleeves 502 is provided with a gas groove 503, when the gas grooves 503 on the top connecting pieces 501 and the rotating tooth sleeves 502 are aligned, the gas in the inner portion of the outer cylinder 403 can be discharged, the top portion of each of the rotating tooth sleeves 502 is fixedly connected with a connecting cap pipe 504, the connecting cap pipe 504 functions as a gas passage, the top portion of the connecting cap pipe 504 is fixedly connected with a connecting pipe 505, the connecting pipe 505 functions as a gas passage, the two sides of the outer cylinder 403 are provided with vertical pipes 506, the top portion of the outer cylinder 403 is provided with a top pipe 507, the inner sides of the top pipe 507 and the vertical pipes 506 are fixedly connected with a plurality of air jet pipes 508, the air jet pipes 508 on the two sides of the main case body 3 are obliquely arranged, the air jet pipes 508 can blow the dust in the main case body 3 and the dust attached to the electronic components, the inner sides of the plurality of air jet pipes 508 are fixedly connected to the outer portion of the main case body 3, the outer top end of the outer cylinder 403 is fixedly connected with a fixed sleeve 509, the fixed sleeve 509 provides a mounting position, the inner portion of the fixed sleeve 509 is slidably connected with a sliding ring 510, the sliding ring 510 functions as a limiting part, the inner side of the sliding ring 510 is fixedly connected with a pulling rod 512, the inner portion of the fixed sleeve 509 is provided with a return spring 511, one end of the return spring 511 is fixedly connected to the inner portion of the fixed sleeve 509, the other end of the return spring 511 is fixedly connected to the side of the sliding ring 510 away from the clamping plate 513, the clamping plate 513 is clamped with the outer portion of the rotating tooth sleeve 502, after the clamping plate 513 is clamped with the rotating tooth sleeve 502, the rotating tooth sleeve 502 can be prevented from rotating, the return spring 511 is sleeved on the outer portion of the pulling rod 512, the pulling rod 512 is pulled away from the gas groove 503, so that the sliding ring 510 can be driven to move away from the rotating tooth sleeve 502, then the clamping plate 513 can be driven to move away from the rotating tooth sleeve 502, so that the clamping of the clamping plate 513 with the rotating tooth sleeve 502 can be released, at this time, the rotating tooth sleeve 502 can be rotated, when the rotating tooth sleeve 502 rotates, the gas groove 503 on the rotating tooth sleeve 502 can be aligned with the gas groove 503 on the top connecting piece 501, so that the inner portion of the outer cylinder 403 can be connected with the outside air, then the air pressure in the inner portion of the outer cylinder 403 can be balanced, at this time, the piston 404 can be driven to move downwards, so that the mounting hole plate 401 can be pulled out of the inner portion of the main case body 3, the air in the outer cylinder 403 is pushed into the inner portion of the connecting cap pipe 504 through the gas groove 503, and is connected into the inner portion of the top pipe 507 and the vertical pipes 506 through the connecting pipe 505, and is jetted out through the air jet pipes 508.Thus, the dust attached during the maintenance, installation or replacement of electronic components can be blown away, and at the same time, the gas sprayed can be used to discharge the dust inside the main case body 3 outside the main case body 3 before the slowly rising lower baffle 402 rises to the bottom of the main case body 3. After the piston 404 moves to the inner top end of the outer cylinder 403, the pulling rod 512 can be pulled again in the direction away from the main case body 3, and the clamping plate 513 is disengaged from the rotating tooth sleeve 502. At this time, the rotating tooth sleeve 502 is rotated again to stagger the two air grooves 503, so that the inner part of the outer cylinder 403 will not suck in gas again, thereby enabling the mounting hole plate 401 to be installed inside the main case body 3. Loosing the pulling rod 512, under the elastic force of the return spring 511, the sliding ring 510 moves in the direction close to the main case body 3, and the clamping plate 513 is re-engaged with the rotating tooth sleeve 502, thereby preventing the rotating tooth sleeve 502 from rotating.

[0033] The dustproof mechanism 6 includes a filter cylinder 601 capable of filtering the air entering the inside of the main case body 3, thereby preventing dust from entering the inside of the main case body 3. The bottom of the filter cylinder 601 is fixedly connected to the top of the main case body 3. The top of the filter cylinder 601 is rotatably connected with a rotating shaft 602 capable of providing an installation position. The top of the rotating shaft 602 is fixedly connected with a wind-driven impeller 603 capable of rotating under the flow of gas. The outside of the rotating shaft 602 is fixedly connected with a mounting rotating frame 604 capable of rotating under the rotation of the wind-driven impeller 603. The inside of the mounting rotating frame 604 on both sides is provided with a plurality of abutting springs 605. The inside of the mounting rotating frame 604 on both sides is slidably connected with a limiting plate 606 capable of providing a limit. The side of the limiting plate 606 away from the abutting spring 605 is fixedly connected with a connecting plate 607 serving as a connection. The end of the connecting plate 607 away from the limiting plate 606 is fixedly connected with a wiping brush 608 capable of cleaning the outer wall of the filter cylinder 601. The top of the lower baffle 402 is fixedly connected with two dust extraction fans 609 capable of constantly discharging the gas inside the main case body 3 and introducing the filtered gas through the filter cylinder 601, so that the gas inside the main case body 3 remains clean and the airflow inside the main case body 3 flows to achieve air cooling. One end of the abutting spring 605 is fixedly connected to the inside of the mounting rotating frame 604. The other end of the abutting spring 605 is fixedly connected to the side of the limiting plate 606 away from the connecting plate 607. The connecting plate 607 penetrates the side of the mounting rotating frame 604 close to the filter cylinder 601. The side of the wiping brush 608 away from the connecting plate 607 is in contact with the outside of the filter cylinder 601.

[0034] Working principle: when the installation or maintenance of the electronic components inside the mainframe box 3 is carried out, first pull the pull rod 512 away from the air groove 503, so as to drive the sliding ring 510 to move away from the rotating tooth sleeve 502, in turn, drive the clamping plate 513 to move away from the rotating tooth sleeve 502, so as to release the clamping of the clamping plate 513 and the rotating tooth sleeve 502, at this time, the rotating tooth sleeve 502 can be rotated, when the rotating tooth sleeve 502 rotates, the air groove 503 on the rotating tooth sleeve 502 can be aligned with the air groove 503 on the top connecting piece 501, so that the inside of the outer cylinder 403 can be connected with the outside air, in turn, the air pressure inside the outer cylinder 403 can be balanced, at this time, the connecting handle 406 can be pulled down, the lower baffle 402 is driven to move downward, in turn, the installation hole plate 401 and the upper baffle 402 are pulled down, when the upper baffle 402 is pulled to the bottom of the mainframe box 3, it is blocked by the bottom of the mainframe box 3, preventing the installation hole plate 401 from being pulled out of the mainframe box 3, when the installation hole plate 401 is pulled out of the mainframe box 3, the electronic components on the installation hole plate 401 can be maintained, installed or replaced, because the installation hole plate 401 is pulled out of the mainframe box 3, there is no inner wall of the mainframe box 3 to block, in turn, it is convenient to maintain, install or replace the electronic components installed on the installation hole plate 401, when the electronic components are put into the mainframe box 3, the connecting handle 406 is pushed up, and when the installation hole plate 401 moves into the mainframe box 3, it is blocked by the lower baffle 402, and the next time the baffle 402 is blocked at the bottom of the mainframe box 3, the mainframe box 3 cooperates with the lower baffle 402 to form a closed space, at the same time, when the connecting handle 406 moves upward, the connecting rod 405 drives the piston 404 to move upward, so that the air in the outer cylinder 403 is pushed into the inside of the connecting cap tube 504 through the air groove 503, and is connected into the inside of the top pipe 507 and the vertical pipe 506 through the connecting pipe 505, and is sprayed out through the air jet pipe 508, so that the sprayed gas can be used to exhaust the dust in the mainframe box 3 before the lower baffle 402 rises to the bottom of the mainframe box 3, when the piston 404 moves to the top of the outer cylinder 403, the pull rod 512 is pulled away from the mainframe box 3 again, and the clamping of the clamping plate 513 and the rotating tooth sleeve 502 is released, at this time, the rotating tooth sleeve 502 is rotated again, the two air grooves 503 are staggered, so that the inside of the outer cylinder 403 will not suck air again, so that the piston 404 will not move downward under the action of air pressure, in turn, the connecting handle 406 will not move downward, so that the bottom of the lower baffle 402 will not leave the bottom of the mainframe box 3,Thus, the mounting hole plate 401 and the electronic components mounted thereon can be installed inside the mainframe box body 3.

[0035] When the mainframe box is in operation, the dust extraction fan 609 is started, and the dust extraction fan 609 generates gas, which can continuously discharge the gas inside the mainframe box body 3 through the dust extraction fan 609, and the dust cannot enter the inside of the mainframe box body 3 through the dust extraction fan 609 due to the airflow generated below the dust extraction fan 609. When the gas enters the inside of the mainframe box body 3, the gas first passes through the filter cylinder 601 for filtration before entering the inside of the mainframe box body 3, which can play a dustproof role. If wind power is generated, the wind-driven impeller 603 can be driven to rotate under the driving of the flowing airflow, so that the mounting rotating frame 604 can be driven to rotate, and the limiting plate 606, the connecting plate 607 and the wiping brush 608 can be driven to rotate after the mounting rotating frame 604 rotates, and the dust attached to the outside of the filter cylinder 601 can be scraped off by the wiping brush 608, preventing the efficiency of air entering the inside of the mainframe box body 3 from being reduced.

[0036] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A farmland irrigation monitoring device based on soil water potential, comprising irrigation detection equipment (1), characterized in that, The irrigation testing equipment (1) has an externally detachable mounting sleeve (2) on its column. The mounting sleeve (2) is fixedly connected to a main unit housing (3). The main unit housing (3) has an internal mounting mechanism (4) for mounting electronic components. The top of the mounting mechanism (4) has a dust removal mechanism (5) for removing dust from inside the main unit housing (3) using gas provided by the mounting mechanism (4). The top of the main unit housing (3) has a dustproof mechanism (6) for filtering air entering inside the main unit housing (3).

2. The farmland irrigation monitoring device based on soil water potential according to claim 1, characterized in that, The mounting mechanism (4) includes a mounting plate (401), which is located inside the main unit housing (3). Baffles (402) are fixedly connected to both the upper and lower sides of the mounting plate (401). Outer cylinders (403) are fixedly connected to both sides of the main unit housing (3). Pistons (404) are slidably connected inside the outer cylinder (403). A connecting rod (405) is fixedly connected between the bottoms of the two pistons (404). A connecting handle (406) is fixedly connected to the bottom of the connecting rod (405). The top of the connecting handle (406) is fixedly connected to the bottom of the lower baffle (402). Both ends of the connecting rod (405) pass through the bottom of the outer cylinder (403).

3. The farmland irrigation monitoring device based on soil water potential according to claim 2, characterized in that, The dust removal mechanism (5) includes two top connectors (501), which are fixedly connected to the top of the outer cylinder (403). A rotating gear sleeve (502) is rotatably connected to the outside of each top connector (501). Air grooves (503) are provided at the top of both the top connectors (501) and the rotating gear sleeve (502). A connecting cap tube (504) is fixedly connected to the top of the rotating gear sleeve (502), and a connecting pipe (505) is fixedly connected to the top of the connecting cap tube (504). Vertical pipes (506) are provided on both sides of the outer cylinder (403), and a top pipe (505) is provided at the top of the outer cylinder (403). 507), the top pipe (507) and the inner side of the vertical pipe (506) are both fixedly connected to multiple jet pipes (508), the inner side of the multiple jet pipes (508) are both fixedly connected to the outside of the main unit box (3), the outer top of the outer cylinder (403) is fixedly connected to a fixed sleeve (509), the inside of the fixed sleeve (509) is slidably connected to a sliding ring (510), the inside of the sliding ring (510) is fixedly connected to a pull rod (512), the inside of the fixed sleeve (509) is provided with a return spring (511), and the pull rod (512) is fixedly connected to a clamping plate (513) on the side near the rotating gear sleeve (502).

4. The farmland irrigation monitoring device based on soil water potential according to claim 2, characterized in that, The dustproof mechanism (6) includes a filter cartridge (601), the bottom of which is fixedly connected to the top of the main unit housing (3). A rotating shaft (602) is rotatably connected to the top of the filter cartridge (601). A fan impeller (603) is fixedly connected to the top of the rotating shaft (602). A mounting rotating frame (604) is fixedly connected to the outside of the rotating shaft (602). Multiple clamping springs (605) are provided inside both sides of the mounting rotating frame (604). Limiting plates (606) are slidably connected inside both sides of the mounting rotating frame (604). A connecting plate (607) is fixedly connected to the side of the limiting plate (606) away from the clamping springs (605). A wiping brush (608) is fixedly connected to the end of the connecting plate (607) away from the limiting plate (606). Two dust extraction fans (609) are fixedly connected to the top of the lower baffle (402).

5. A farmland irrigation monitoring device based on soil water potential according to claim 2, characterized in that, The upper baffle (402) is slidably connected to the inside of the main unit housing (3), and the lower baffle (402) is disposed inside the bottom end of the main unit housing (3).

6. The farmland irrigation monitoring device based on soil water potential according to claim 3, characterized in that, One end of the return spring (511) is fixedly connected to the inside of the fixed sleeve (509), and the other end of the return spring (511) is fixedly connected to the side of the sliding ring (510) away from the card plate (513).

7. The farmland irrigation monitoring device based on soil water potential according to claim 3, characterized in that, The card plate (513) engages with the outside of the rotating toothed sleeve (502), and the return spring (511) is sleeved on the outside of the pull rod (512).

8. A farmland irrigation monitoring device based on soil water potential according to claim 4, characterized in that, One end of the clamping spring (605) is fixedly connected to the inside of the mounting rotating frame (604), and the other end of the clamping spring (605) is fixedly connected to the side of the limiting plate (606) away from the connecting plate (607).

9. A farmland irrigation monitoring device based on soil water potential according to claim 4, characterized in that, The connecting plate (607) passes through the side of the mounting rotating frame (604) near the filter cartridge (601), and the wiping brush (608) on the side away from the connecting plate (607) contacts the outside of the filter cartridge (601).

10. A farmland irrigation monitoring device based on soil water potential according to claim 1, characterized in that, The bottom of the irrigation testing equipment (1) is fixedly connected to an installation base (8), and a sealing pipe (7) is detachably connected to the side of the main unit box (3) near the irrigation testing equipment (1). The side of the sealing pipe (7) away from the main unit box (3) is fixedly connected to the outside of the column of the irrigation testing equipment (1).

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