A soil moisture monitor

Abstract

The invention discloses a soil moisture monitor, which relates to the technical field of soil detection. The instrument comprises an outer shell, a plurality of monitoring components, wherein wires are arranged between the plurality of monitoring components and the outer shell, a rotating shaft is rotatably connected inside the outer shell, a plurality of baffles are arranged on the rotating shaft, a space for winding the wires is provided between two adjacent baffles, one end of the rotating shaft leaks out of the outer shell, a knob is arranged on the outer wall of the outer shell, a plug rod is fixedly connected to the middle end of the knob, a slot is provided at one end of the rotating shaft, the plug rod is inserted into the slot, two slide grooves are symmetrically provided in the slot, the end of the plug rod is fixedly connected to a limiting block, a sliding block is fixedly connected to the side of the limiting block, and the sliding block slides and contacts in the sliding groove. The instrument can monitor multiple points and has high monitoring accuracy.

Description

Technical Field

[0001] The present invention relates to the technical field of soil detection, and in particular to a soil moisture monitoring instrument. Background Art

[0002] Soil temperature and humidity have an important impact on the growth of crops. Timely understanding of the impact of soil temperature and humidity is of great significance for guiding agricultural operations, ensuring the healthy growth of crops, and improving the yield and quality of agricultural products. In both industry and agriculture, it is necessary to test the temperature and humidity of the soil before further construction or farming. The existing soil temperature and humidity detector is generally composed of a soil moisture detector and a detection probe connected to it by a long wire.

[0003] The Chinese patent with publication number CN217058895U discloses a soil temperature and humidity detector, including a mounting frame and a placement plate fixed to the oblique side wall of the mounting frame, the mounting frame is provided with a soil moisture detector body, and the soil moisture detector body is connected to a detection probe through a long wire, the mounting frame is provided with a fixing mechanism, a spring clamping mechanism and a soil breaking mechanism in sequence, and the fixing mechanism includes two symmetrically arranged fixing components. The utility model is provided with a soil breaking mechanism, which can extend the detection probe into the soil at a deeper depth for detection, thereby improving the detection range and detection quality, and improving practicality; a fixing mechanism and a spring clamping mechanism are provided, and the fixing mechanism is used to facilitate the entire detector to be well fixed on the outdoor mud ground, thereby improving the fixing effect, and the spring clamping mechanism facilitates the disassembly and assembly of the soil moisture detector body, thereby improving the disassembly and assembly efficiency.

[0004] However, the following problems still exist in the current patent: when the humidity sensor is detecting, debris in the soil layer can easily block the detection port of the humidity sensor, and the above patent only detects one place in the area and cannot detect multiple places in the same area at the same time, which reduces the reliability of the detection results. Summary of the invention

[0005] The object of the present invention is to provide a soil moisture monitor to solve the problems raised in the above background technology.

[0006] The technical solution of the present invention is: a soil moisture monitor, comprising an outer shell, a plurality of monitoring components, wires are arranged between the plurality of monitoring components and the outer shell, a rotating shaft is rotatably connected inside the outer shell, a plurality of baffles are arranged on the rotating shaft, a space for winding the wires is provided between two adjacent baffles, one end of the rotating shaft movably passes through the outer shell and extends to the outside, a knob is arranged on the outer wall of the outer shell, a plug rod is fixedly connected to the middle end of the knob, a slot is provided at one end of the rotating shaft, the plug rod is inserted into the slot, two slide grooves are symmetrically provided in the slot, the end of the plug rod is fixedly connected to a limiting block, a slider is fixedly connected to the side of the limiting block, and the slider slides against the slide groove;

[0007] A locking groove is also provided on the outer wall of the housing, and a locking block is fixedly connected to one side of the knob;

[0008] A plurality of mounting sleeves are provided at the bottom of the outer shell, and the monitoring components are connected to corresponding mounting sleeves. The monitoring components are used to monitor soil moisture.

[0009] Preferably, the monitoring component includes a chassis, a top plate and a humidity detector, a fixing rod is fixedly connected in the middle of the top plate, a sealing plate is connected to the bottom of the fixing rod, the bottom of the sealing plate is abutted against the top of the humidity detector, top rods are fixedly connected on both sides of the bottom of the sealing plate, the bottom of the top rod is fixedly connected to the chassis, the bottom of the humidity detector is fixedly connected to the chassis, a support plate is fixedly connected to the top of the sealing plate, a first electric telescopic rod is fixedly connected to the support plate, a second electric telescopic rod is snap-connected to the bottom of the top plate, a first filter ring net is fixedly connected to the bottom of the first electric telescopic rod, a second filter ring net is fixedly connected to the bottom of the second electric telescopic rod, and the second filter ring net is located on the outside of the first filter ring net.

[0010] Preferably, the sealing plate is provided with an annular groove for the first filter ring net to pass through, the top and the bottom of the first filter ring net are fixedly connected with sealing blocks, and the chassis is provided with a sealing groove.

[0011] Preferably, cushion blocks are fixedly connected to both sides of the sealing plate, and a sealing ring is fixedly connected to the top of the second filter ring net.

[0012] Preferably, a first cleaning ring and a second cleaning ring are fixedly connected to the top of the sealing plate, and brushes are arranged on the outer peripheral walls of the first cleaning ring and the second cleaning ring.

[0013] Preferably, the bottom of the fixing rod is fixedly connected to a driving motor, the bottom of the driving motor output shaft is clamped and connected to the sealing plate, and the outer peripheral wall of the driving motor output shaft is fixedly connected to a fan blade.

[0014] Preferably, a cross bar is fixedly connected to the outer peripheral wall of the output shaft of the driving motor, and a scraper rod with double scraper heads is fixedly connected to the end of the cross bar.

[0015] Preferably, a frustum is fixedly connected to the bottom of the chassis, and a plurality of stakes are fixedly connected to the bottom of the frustum.

[0016] Preferably, a thread groove is provided at the bottom of the installation sleeve, the top plate is threadably connected to the thread groove, and a wire groove is provided in the middle of the installation sleeve.

[0017] Preferably, a plurality of balls are rollingly connected to the inner peripheral wall of the wire groove.

[0018] The present invention provides a soil moisture monitor through improvement, which has the following improvements and advantages compared with the prior art:

[0019] First, the present invention places the monitoring component on the soil, and multiple monitoring components can monitor multiple groups of data, thereby improving the reliability of the monitoring data. After the monitoring is completed, the knob drives the rotating shaft to rotate, thereby retracting the wire, and reinstalling the monitoring component on the mounting sleeve, and then pushing the knob to move toward the inside of the outer shell, the locking block contacts the locking groove to prevent the knob from rotating, so that the wire can be stably retracted on the rotating shaft.

[0020] Second, the chassis of the present invention is placed on the soil, and the sealing plate and the chassis seal the top and bottom of the humidity detector. The circumferential space of the humidity detector is blocked by the first filter ring net or the second filter ring net. The first filter ring net or the second filter ring net can block debris in the soil and allow moisture on the soil to pass through, thereby improving the accuracy of humidity detection. The first filter ring net and the second filter ring net can be alternately located on the periphery of the humidity detector to avoid clogging of one of the filter ring nets, which would cause the humidity detection work to be unable to continue, and the humidity monitoring work can be carried out continuously.

[0021] Third: the sealing block at the bottom of the present invention is in sealing contact with the sealing groove, and the sealing block at the top is in sealing contact with the ring groove, thereby improving the sealing performance of the top and bottom of the first filter ring net, and the gasket is in contact with the sealing ring, thereby improving the sealing performance of the top and bottom of the second filter ring net and preventing mud from entering the detection ring cavity.

[0022] Fourthly, when the first filter ring net and the second filter ring net of the present invention are replaced alternately, the first filter ring net and the second filter ring net will move up and down. During the up and down movement, the brush can clean the inner side of the filter ring net to effectively clean the filter ring net.

[0023] Fifth, in the present invention, when the first filter ring network is at the periphery of the humidity detector, the second filter ring network is first moved down to the periphery of the humidity detector, and then the first filter ring network is moved up, thereby avoiding the vacuum period of filtration.

[0024] Sixth, in any case, when the first filter ring moves up and down, the second filter ring is always at the outer periphery of the humidity detector and in contact with the bottom plate. Thus, when the first filter ring is in contact with the brush for cleaning, the debris generated will fly out along the top of the second filter ring and will not be adsorbed on the inner circumference of the second filter ring.

[0025] Seventh, the driving motor in the present invention can be started at a fixed time. When started, it drives the fan blades and the cross bar to rotate, thereby driving the scraper rod to rotate. The rotation of the fan blades can generate wind force, and the rotation of the scraper rod can clean the brush. Combined with the wind force, the cleaning effect of the brush can be improved, thereby realizing self-cleaning of the brush, the first filter ring net and the second filter ring net, extending the monitoring time of the humidity detection equipment working outdoors, and reducing the maintenance cycle. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 It is an overall cross-sectional schematic diagram of the present invention;

[0028] Figure 2 It is a schematic diagram of the three-dimensional structure of the monitoring component in the present invention;

[0029] Figure 3 It is a cross-sectional schematic diagram of the monitoring component in the present invention;

[0030] Figure 4 It is a cross-sectional schematic diagram of the first filter ring network and the second filter ring network after alternation in the present invention;

[0031] Figure 5 It is a plan view schematic diagram of the driving motor and the fan blades in the present invention;

[0032] Figure 6 It is a plan view of the scraper rod in the present invention;

[0033] Figure 7 for Figure 1 A in the enlarged view;

[0034] Figure 8It is a cross-sectional schematic diagram of the installation sleeve in the present invention.

[0035] In the figure: 1, outer shell; 2, monitoring component; 201, chassis; 202, top plate; 203, humidity detector; 204, fixing rod; 205, sealing plate; 206, top rod; 207, support plate; 208, first electric telescopic rod; 209, second electric telescopic rod; 210, first filter ring net; 211, second filter ring net; 212, ring groove; 213, sealing block; 214, sealing groove; 215, cushion block; 2 16. Sealing ring; 3. Rotating shaft; 301. Baffle; 302. Knob; 303. Rod; 304. Slot; 305. Slide; 306. Limit block; 307. Locking block; 308. Mounting sleeve; 4. First cleaning ring; 401. Second cleaning ring; 5. Driving motor; 501. Fan blade; 502. Cross bar; 503. Scraper rod; 6. Cone; 601. Stake; 7. Threaded groove; 701. Wire groove; 702. Ball bearing. DETAILED DESCRIPTION

[0036] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0037] The components of the embodiments of the present invention generally described and shown in the drawings herein may be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0038] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present invention.

[0039] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0040] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] like Figure 1-Figure 8 As shown, the embodiment of the present invention provides a soil moisture monitor, including an outer shell 1, a plurality of monitoring components 2, a wire is arranged between the plurality of monitoring components 2 and the outer shell 1, a rotating shaft 3 is rotatably connected inside the outer shell 1, a plurality of baffles 301 are arranged on the rotating shaft 3, a space for winding the wire is provided between two adjacent baffles 301, one end of the rotating shaft 3 movably passes through the outer shell 1 and extends to the outside, a knob 302 is arranged on the outer wall of the outer shell 1, a plug rod 303 is fixedly connected to the middle end of the knob 302, a slot 304 is provided at one end of the rotating shaft 3, the plug rod 303 is inserted into the slot 304, two slide grooves 305 are symmetrically provided in the slot 304, an end of the plug rod 303 is fixedly connected to a limiting block 306, a slider is fixedly connected to the side of the limiting block 306, the slider slides and contacts in the slide groove 305, the wire is wound around the rotating shaft 3, one end of the wire is fixedly connected to the rotating shaft 3, and the other end of the guide is connected to the monitoring component 2, a power supply device is provided in the outer shell 1, and the power supply device is preferably an outdoor power supply;

[0042] A locking groove is also provided on the outer wall of the outer shell 1, and a locking block 307 is fixedly connected to one side of the knob 302;

[0043] A plurality of mounting sleeves 308 are provided at the bottom of the outer shell 1 , and the monitoring components 2 are connected to corresponding mounting sleeves 308 . The monitoring components 2 are used to monitor the moisture of the soil.

[0044] Specifically: the knob 302 is pulled outward from the outer shell 1, and the locking block 307 is disengaged from the locking groove, so that the shaft 3 is in an active state, and then the multiple monitoring components 2 are pulled out and placed on the soil. The multiple monitoring components 2 can monitor multiple sets of data, thereby improving the reliability of the monitoring data. After the monitoring is completed, the knob 302 drives the shaft 3 to rotate, thereby retracting the wire, and reinstalling the monitoring component 2 on the mounting sleeve 308, and then the knob 302 is pushed to move toward the inner side of the outer shell 1, and the locking block 307 conflicts with the locking groove to prevent the knob 302 from rotating, so that the wire can be stably reeled on the shaft 3. The locking block 307 is preferably a magnetic block with magnetic force, and the magnetic block and the locking groove have an adsorption force to improve the stability of the locking block 307 in the locking groove;

[0045] When the knob 302 rotates, the knob 302 drives the insertion rod 303 to rotate. The insertion rod 303 can drive the rotating shaft 3 to rotate through the sliding engagement effect of the slider and the sliding groove 305.

[0046] The monitoring component 2 includes a chassis 201, a top plate 202 and a humidity detector 203. A fixing rod 204 is fixedly connected in the middle of the top plate 202. A sealing plate 205 is connected to the bottom of the fixing rod 204. The bottom of the sealing plate 205 abuts against the top of the humidity detector 203. Top rods 206 are fixedly connected to both sides of the bottom of the sealing plate 205. The bottom of the top rod 206 is fixedly connected to the chassis 201. The bottom of the humidity detector 203 is fixedly connected to the chassis 201. A support plate 207 is fixedly connected to the top of the sealing plate 205. A first electric telescopic rod 208 is fixedly connected, and a second electric telescopic rod 209 is snap-connected to the bottom of the top plate 202. A first filter ring net 210 is fixedly connected to the bottom of the first electric telescopic rod 208, and the first electric telescopic rod 208 is used to control the up and down movement of the first filter ring net 210. A second filter ring net 211 is fixedly connected to the bottom of the second electric telescopic rod 209, and the second electric telescopic rod 209 is used to control the up and down movement of the second filter ring net 211. The second filter ring net 211 is located on the outside of the first filter ring net 210.

[0047] Specifically: the chassis 201 is placed on the soil, the sealing plate 205 and the chassis 201 seal the top and bottom of the humidity detector 203, and the circumferential space of the humidity detector 203 is blocked by the first filter ring net 210 or the second filter ring net 211. The first filter ring net 210 or the second filter ring net 211 can block debris in the soil and allow moisture on the soil to pass through, thereby improving the accuracy of humidity detection. The first filter ring net 210 and the second filter ring net 211 can be alternately located on the periphery of the humidity detector 203 to avoid clogging one of the filter ring nets, which would cause the humidity detection work to be unable to continue.

[0048] The sealing plate 205 is provided with an annular groove 212 through which the first filter ring net 210 passes. The top and bottom of the first filter ring net 210 are fixedly connected with sealing blocks 213 . The bottom plate 201 is provided with a sealing groove 214 .

[0049] Pads 215 are fixedly connected to both sides of the sealing plate 205 , a sealing ring 216 is fixedly connected to the top of the second filter ring net 211 , and a sealing block 213 is also provided at the bottom of the second filter ring net 211 .

[0050] Specifically: the lower sealing block 213 is in sealing contact with the sealing groove 214, and the upper sealing block 213 is in sealing contact with the ring groove 212, thereby improving the sealing of the top and bottom of the first filter ring net 210. The gasket 215 is in contact with the sealing ring 216, and similarly improves the sealing of the top and bottom of the second filter ring net 211 to prevent soil from entering the detection ring cavity. The detection ring cavity is an annular cavity surrounded by the first filter ring net 210 or the second filter ring net 211.

[0051] The top of the sealing plate 205 is fixedly connected with the first cleaning ring 4 and the second cleaning ring 401 , and brushes are arranged on the outer peripheral walls of the first cleaning ring 4 and the second cleaning ring 401 .

[0052] Specifically: when the first filter ring net 210 and the second filter ring net 211 are replaced alternately, the first filter ring net 210 and the second filter ring net 211 will move up and down. During the up and down movement, the brush can clean the inner side of the filter ring net to effectively clean the filter ring net;

[0053] When the first filter ring net 210 is located at the periphery of the humidity detector 203, the second filter ring net 211 is first moved down to the periphery of the humidity detector 203, and then the first filter ring net 210 is moved up, thereby avoiding the vacuum period of filtration. Similarly, when the second filter ring net 211 is located at the periphery of the humidity detector 203, the action process is opposite to the above.

[0054] It is worth noting that no matter in which of the above situations, when the first filter ring net 210 moves up and down, the second filter ring net 211 is always at the periphery of the humidity detector 203 and in contact with the bottom plate 201. In this way, when the first filter ring net 210 is in contact with the brush for cleaning, the debris generated will fly out along the top of the second filter ring net 211 and will not be adsorbed on the inner circumference of the second filter ring net 211.

[0055] The bottom of the fixing rod 204 is fixedly connected with the driving motor 5 , the bottom of the output shaft of the driving motor 5 is snap-connected with the sealing plate 205 , and the outer peripheral wall of the output shaft of the driving motor 5 is fixedly connected with the fan blade 501 .

[0056] A cross bar 502 is also fixedly connected to the outer peripheral wall of the output shaft of the driving motor 5 , and a scraper rod 503 with double scrapers is fixedly connected to the end of the cross bar 502 .

[0057] Specifically: the driving motor 5 can be started at a fixed time. When started, it drives the fan blades 501 and the cross bar 502 to rotate, thereby driving the scraper rod 503 to rotate. The rotation of the fan blades 501 can generate wind force, and the rotation of the scraper rod 503 can clean the brush. Combined with the wind force, the cleaning effect of the brush can be improved, thereby achieving self-cleaning of the brush, the first filter ring net 210 and the second filter ring net 211, extending the monitoring time of the humidity detection equipment working outdoors, and reducing the maintenance cycle.

[0058] A frustum 6 is fixedly connected to the bottom of the chassis 201 , and a plurality of plugging piles 601 are fixedly connected to the bottom of the frustum 6 . The frustum 6 and the plurality of plugging piles 601 can improve the stability of the chassis 201 .

[0059] A thread groove 7 is provided at the bottom of the installation sleeve 308, and the top plate 202 is threadedly connected to the thread groove 7. A wire groove 701 is provided in the middle of the installation sleeve 308, and the top plate 202 is threadedly connected to the installation sleeve 308, so as to facilitate the disassembly and assembly of the monitoring component 2.

[0060] A plurality of balls 702 are rollingly connected to the inner wall of the wire groove 701, and the balls 702 can reduce the wear of the wires.

[0061] Working principle: Pull the knob 302 outward from the outer shell 1, and the locking block 307 is disengaged from the locking groove, so that the rotating shaft 3 is in an active state, and then pull out the multiple monitoring components 2 and place the monitoring components 2 on the soil;

[0062] When the chassis 201 is placed on the soil, the sealing plate 205 and the chassis 201 seal the top and bottom of the humidity detector 203, and the circumferential space of the humidity detector 203 is blocked by the first filter ring 210 or the second filter ring 211. The first filter ring 210 or the second filter ring 211 can block the debris in the soil and allow the moisture on the soil to pass through, thereby improving the accuracy of humidity detection. The first filter ring 210 and the second filter ring 211 can be alternately located at the periphery of the humidity detector 203 to avoid the blockage of one of the filter rings, resulting in the inability to continue the humidity detection work. When the first filter ring 210 and the second filter ring 211 are alternately replaced, the first filter ring 210 and the second filter ring 211 will move up and down. During the up and down movement, the brush can clean from the inside of the filter ring to effectively clean the filter ring.

[0063] Multiple monitoring components 2 can monitor multiple sets of data and improve the reliability of the monitoring data. After the monitoring is completed, the knob 302 drives the shaft 3 to rotate, thereby retracting the wire, and reinstalling the monitoring component 2 on the mounting sleeve 308, and then pushes the knob 302 to move toward the inside of the outer shell 1. The locking block 307 contacts the locking groove to prevent the knob 302 from rotating, so that the wire can be stably retracted on the shaft 3.

[0064] The above description enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A soil moisture monitoring instrument, comprising an outer shell (1) and a plurality of monitoring components (2), characterized in that: Conductive wires are arranged between the plurality of monitoring components (2) and the outer shell (1); a rotating shaft (3) is rotatably connected inside the outer shell (1); a plurality of baffles (301) are arranged on the rotating shaft (3); a space for winding the conductive wires is provided between two adjacent baffles (301); one end of the rotating shaft (3) movably passes through the outer shell (1) and extends to the outside; a knob (302) is arranged on the outer wall of the outer shell (1); a plug rod (303) is fixedly connected to the middle end of the knob (302); a slot (304) is provided at one end of the rotating shaft (3); the plug rod (303) is inserted into the slot (304); two slide grooves (305) are symmetrically provided in the slot (304); an end of the plug rod (303) is fixedly connected to a limit block (306); a slide block is fixedly connected to the side of the limit block (306); the slide block slides in contact with the slide groove (305); A locking groove is also provided on the outer wall of the outer shell (1), and a locking block (307) is fixedly connected to one side of the knob (302); A plurality of mounting sleeves (308) are provided at the bottom of the outer shell (1), and the monitoring components (2) are connected to corresponding mounting sleeves (308). The monitoring components (2) are used to monitor soil moisture; The monitoring assembly (2) comprises a chassis (201), a top plate (202), and a humidity detector (203); a fixing rod (204) is fixedly connected in the middle of the top plate (202); a sealing plate (205) is connected to the bottom of the fixing rod (204); the bottom of the sealing plate (205 abuts against the top of the humidity detector (203); top rods (206) are fixedly connected to both sides of the bottom of the sealing plate (205); the bottom of the top rods (206) is fixedly connected to the chassis (201); the bottom of the humidity detector (203) is fixedly connected to the chassis (201); a supporting plate (207) is fixedly connected to the top of the sealing plate (205); a first electric telescopic rod (208) is fixedly connected to the supporting plate (207); and the bottom of the top plate (202) is clamped to the bottom. A second electric telescopic rod (209) is connected, a first filter ring net (210) is fixedly connected to the bottom of the first electric telescopic rod (208), a second filter ring net (211) is fixedly connected to the bottom of the second electric telescopic rod (209), the second filter ring net (211) is located outside the first filter ring net (210), an annular groove (212) is provided on the sealing plate (205), the annular groove (212) is passed through by the first filter ring net (210), the top and bottom of the first filter ring net (210) are fixedly connected to sealing blocks (213), a sealing groove (214) is provided on the chassis (201), cushion blocks (215) are fixedly connected to both sides of the sealing plate (205), and a sealing ring (216) is fixedly connected to the top of the second filter ring net (211).

2. A soil moisture monitor according to claim 1, characterized in that: A first cleaning ring (4) and a second cleaning ring (401) are fixedly connected to the top of the sealing plate (205), and brushes are arranged on the outer peripheral walls of the first cleaning ring (4) and the second cleaning ring (401).

3. A soil moisture monitor according to claim 1, characterized in that: The bottom of the fixing rod (204) is fixedly connected to a driving motor (5), the bottom of the output shaft of the driving motor (5) is snap-connected to the sealing plate (205), and the outer peripheral wall of the output shaft of the driving motor (5) is fixedly connected to a fan blade (501).

4. A soil moisture monitor according to claim 3, characterized in that: A cross bar (502) is also fixedly connected to the outer peripheral wall of the output shaft of the driving motor (5), and a scraper rod (503) with double scrapers is fixedly connected to the end of the cross bar (502).

5. A soil moisture monitor according to claim 1, characterized in that: The bottom of the chassis (201) is fixedly connected to a frustum (6), and the bottom of the frustum (6) is fixedly connected to a plurality of plugging piles (601).

6. A soil moisture monitor according to claim 1, characterized in that: A thread groove (7) is provided at the bottom of the installation sleeve (308), the top plate (202) is threadably connected to the thread groove (7), and a wire groove (701) is provided in the middle of the installation sleeve (308).

7. A soil moisture monitor according to claim 6, characterized in that: The inner peripheral wall of the wire groove (701) is rollingly connected with a plurality of balls (702).

Images