Soil humidity detection equipment

Abstract

The soil humidity detection equipment comprises a top plate, and a detection device is installed at the center position of the lower surface of the top plate. The detection device is provided with a drilling assembly used for drilling soil, a detection mechanism used for detecting the soil humidity of the circumferential inner wall of a drilled hole and a driving mechanism used for driving the drilling assembly or the detection mechanism to rotate, and the drilling assembly is provided with a hollow drill rod. The top end of the hollow drill rod penetrates through a bearing in the center of the bottom end of the box body and extends into the box body, an end cover is installed at the top end of the hollow drill rod, a hollow rotating shaft is installed in the center of the surface of the end cover, a third bevel gear is installed on the outer wall of the hollow rotating shaft, and spiral blades are installed on the outer wall of the hollow drill rod. According to the invention, holes are directly drilled in the soil, soil humidity detection can be carried out on the circumferential inner walls of the drilled holes with different depths, and rapid, continuous and accurate humidity measurement on the soil with different depths is realized.

Description

Technical Field

[0001] The invention belongs to the technical field of soil moisture detection, and in particular relates to soil moisture detection equipment. Background Art

[0002] Soil moisture refers to the soil moisture content, which is an important physical parameter of the soil. Soil water is the link between surface water and groundwater, and plays an important role in the formation, transformation and consumption of water resources. Soil moisture conditions are of great significance to rainfall runoff, evapotranspiration and changes in the ecosystem. At the same time, soil moisture content is also a key indicator in agricultural production conditions, and the amount of soil moisture content plays a vital role in the growth of crops. The decomposition and mineralization of organic nutrients in the soil cannot be separated from water. Chemical fertilizers applied to the soil can only be dissolved in water. The migration of nutrient ions to the root surface and the absorption of nutrients by crop roots must be achieved through water media. Therefore, effective measurement and control of soil moisture content is the basis of modern agricultural production, and soil moisture detection equipment is needed at this time.

[0003] In actual use, the existing soil moisture detection equipment generally uses a drilling device to drill the soil. After the soil of different depths is taken out and put into a sample bag, the staff sends the sample bags with soil of different depths to the laboratory for soil moisture detection. This soil moisture detection method is not only labor-intensive and has low detection efficiency, but also currently drives the soil moisture detection sensor to move along the direction of the drilling hole through the drilling equipment. When the soil depth to be detected is reached, the soil moisture detection sensor can only detect one position on the circumferential inner wall of the drilled hole, and the accuracy of the detected data is low. Therefore, a soil moisture detection device is designed. Summary of the invention

[0004] In view of the defects or shortcomings of soil moisture detection equipment, the purpose of the present invention is to provide a soil moisture detection equipment, which can directly drill holes in the soil and detect soil moisture on the circumferential inner walls of the holes drilled at different depths, thereby realizing fast, continuous and accurate moisture measurement of soil at different depths.

[0005] In order to achieve the above-mentioned object of the invention, the present invention adopts the following technical solutions:

[0006] A soil moisture detection device provided by the present invention comprises a top plate, a detection device is installed at the center of the lower surface of the top plate, and the detection device is provided with a drilling assembly for drilling a hole in the soil, a detection mechanism for detecting the soil moisture on the circumferential inner wall of the drilled hole, and a driving mechanism for driving the drilling assembly or the detection mechanism to rotate;

[0007] The drilling assembly is provided with a hollow drill rod, the top end of the hollow drill rod passes through the bearing at the center position of the bottom end of the box and extends into the interior of the box, the top end of the hollow drill rod is installed with an end cover, a hollow rotating shaft is installed at the center position of the surface of the end cover, and a third bevel gear is installed on the outer wall of the hollow rotating shaft, and a spiral blade is installed on the outer wall of the hollow drill rod;

[0008] A threaded sleeve is provided on the detection mechanism, and the threaded sleeve is located inside the hollow drill rod, a threaded hole is opened at the center position of the end wall of the threaded sleeve, a fourth rotating shaft is installed in the threaded hole, and the other end of the fourth rotating shaft passes through the bearing at the center position of the end cover surface and the interior of the hollow rotating shaft, extends to the interior of the box and is connected to the fourth bevel gear, a mounting frame is installed at the bottom end of the fourth rotating shaft, a connecting shaft is installed at the bottom end of the mounting frame, the other end of the connecting shaft is installed in the bearing seat, the bearing seat is installed at the top center position of the conical drill bit, and the conical drill bit is located at the bottom end of the hollow drill rod, a second mounting plate is provided on the inner side of the mounting frame, an electric push rod is installed on the outer wall of one side of the second mounting plate, and the other end of the electric push rod is connected to the humidity detection probe through the connecting plate.

[0009] Preferably, hydraulic telescopic rods are installed on both sides of the lower surface of the top plate, and the bottom ends of the hydraulic telescopic rods are installed on the upper surface of the base. A through hole is opened at the center of the surface of the base, and mud wheels are provided on both sides of the lower surface of the base.

[0010] Preferably, an external thread is provided on the outer wall of the fourth rotating shaft, and the external thread on the outer wall of the fourth rotating shaft is threadedly matched with the threaded hole on the threaded sleeve.

[0011] Preferably, a positioning column is installed at the top of the conical drill bit, there are six positioning columns, and the six positioning columns are distributed in a ring array, a positioning hole is opened at the bottom end of the hollow drill rod, there are six positioning holes, and the six positioning holes are distributed in a ring array, the outer diameter of the positioning column is equal to the inner diameter of the positioning hole, and a strip slot is opened on the inner wall of the hollow drill rod, and a strip electromagnet is installed in the strip slot, there are four strip slots, and the four strip slots are distributed in a ring array.

[0012] Preferably, a connecting column is installed above the outer wall of the threaded sleeve, there are four connecting columns, and the four connecting columns are distributed in a ring array, a third mounting groove is opened on the end wall of one end of the connecting column, and a third electromagnet is installed on the end wall of one end of the third mounting groove, a second slider is arranged inside the third mounting groove, a third iron block and a fourth iron block are respectively installed at both ends of the second slider, and there is a clearance fit between the outer wall of the second slider and the groove wall of the third mounting groove.

[0013] Preferably, a partition is provided on the driving mechanism, and the partition is arranged above the interior of the box body, a safety door is provided on the front end wall of the box body, a safety lock is provided on the safety door, and heat dissipation windows are provided on the outer walls on both sides of the box body, a reduction motor and a battery are respectively installed on both sides of the upper surface of the partition, a driving pulley is installed on the output shaft of the reduction motor, a first mounting plate is installed on the lower surface of the partition, and a second rotating shaft, a third rotating shaft and a first rotating shaft are sequentially arranged on the outer wall of the first mounting plate from top to bottom, and the second rotating shaft, the third rotating shaft and the first rotating shaft are all installed in the bearings on the first mounting plate.

[0014] Preferably, the first transmission assembly and the second bevel gear are respectively installed on the end walls at both ends of the second rotating shaft, the fourth transmission assembly and the first bevel gear are respectively installed on the end walls at both ends of the first rotating shaft, a driven pulley is installed on the end wall at one end of the third rotating shaft, the second transmission assembly and the third transmission assembly are arranged on the outer wall of the third rotating shaft, and the second transmission assembly is located on one side of the third transmission assembly;

[0015] The driving pulley is connected to the driven pulley through a transmission belt, and the transmission belt passes through the rectangular slot on the surface of the partition, the first transmission assembly is connected to the second transmission assembly through a transmission belt, and the third transmission assembly is connected to the fourth transmission assembly through a transmission belt;

[0016] The second bevel gear is meshed and connected with the fourth bevel gear, and the first bevel gear is meshed and connected with the third bevel gear.

[0017] Preferably, the first transmission assembly, the second transmission assembly, the third transmission assembly and the fourth transmission assembly are all provided with a transmission wheel, and a hollow belt single groove pulley is installed on the circumferential outer wall of the transmission wheel, and an annular protrusion is provided on the circumferential inner wall of the hollow belt single groove pulley, and the other end of the annular protrusion is installed in an annular groove, and there is a clearance fit between the outer wall of the annular protrusion and the groove wall of the annular groove, and the annular groove is opened on the circumferential outer wall of the transmission wheel.

[0018] Preferably, a first mounting groove is provided on the inner wall of the bearing of the annular protrusion, a first electromagnet is installed on the end wall inside the first mounting groove, there are six first mounting grooves, and the six first mounting grooves are distributed in an annular array, a second mounting groove is provided on the inner end wall of the annular groove, there are six second mounting grooves, and the six second mounting grooves are distributed in an annular array, a second electromagnet is installed on the end wall inside the second mounting groove, a first slider is provided inside the second mounting groove, a first iron block and a second iron block are respectively installed on the end walls at both ends of the first slider, and there is a clearance fit between the outer wall of the first slider and the groove wall of the second mounting groove.

[0019] Compared with the prior art, one or more of the above technical solutions have the following beneficial effects:

[0020] 1. In the present invention, through the coordinated arrangement of a series of structures, after the staff starts the equipment to drill the soil and reaches a certain depth, the staff starts the hydraulic telescopic rod and makes the conical drill bit move upward for a certain distance and then closes the hydraulic telescopic rod, and the conical drill bit is still in the drilled hole. The staff controls the connection relationship between the threaded sleeve and the hollow drill rod by controlling whether the bar electromagnet and the third electromagnet are energized and have magnetism. After the staff makes the threaded sleeve and the hollow drill rod have a certain connection relationship, the staff starts the driving mechanism and makes the driving mechanism drive the fourth rotating shaft on the detection mechanism to rotate forward or reverse. When the fourth rotating shaft rotates forward or reversely, the threaded sleeve will make a straight line motion upward or downward along the outer wall of the fourth rotating shaft. The staff makes the threaded sleeve move along the outer wall of the fourth rotating shaft. When making a downward linear motion, it will drive the tapered drill bit, humidity detection probe and other structures to make an upward linear motion. When the humidity detection probe and other structures are moved out from the inside of the hollow drill rod, the staff will close the driving mechanism, and the staff will start the electric push rod to drive the humidity detection probe to telescopically move and make the humidity detection probe detect the soil moisture of the circumferential inner wall of the drilled hole. When it is necessary to detect different positions of the circumferential inner wall of the drilled hole, the staff will make the threaded sleeve and the hollow drill rod have no connection relationship, and then start the driving mechanism and make the driving mechanism drive the fourth rotating shaft to rotate. At this time, when the fourth rotating shaft rotates, it will drive the threaded sleeve, the mounting frame and the humidity detection probe to rotate. The humidity detection probe can rotate so that the soil moisture of different positions of the circumferential inner wall of the drilled hole can be detected.

[0021] 2. In the present invention, through the coordinated arrangement of a series of structures, when the staff conducts humidity detection on the soil at different depths in the drilled hole, the staff activates the hydraulic telescopic rod to indirectly drive the humidity detection sensor to move in the Y-axis direction. From the above, it can be seen that the humidity detection probe can rotate, so that the humidity detection probe can detect different depths of the drilled hole and different positions inside the circumference of the hole.

[0022] Therefore, it can be seen from the above that the present invention directly drills holes in the soil and can detect soil moisture on the circumferential inner walls of the holes drilled at different depths, thereby achieving rapid, continuous and accurate moisture measurement of soil at different depths. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0024] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention.

[0025] Figure 2 It is a cross-sectional view of the detection device of the present invention.

[0026] Figure 3 It is a schematic structural diagram of the drilling assembly of the present invention.

[0027] Figure 4 It is a cross-sectional view of the drilling assembly of the present invention.

[0028] Figure 5 It is a structural schematic diagram of the detection mechanism of the present invention.

[0029] Figure 6 It is a cross-sectional view of the detection mechanism of the present invention.

[0030] Figure 7 The present invention Figure 6 Schematic diagram of the local enlarged structure at A in the figure.

[0031] Figure 8 The present invention Figure 6 Schematic diagram of the local enlarged structure at B in the figure.

[0032] Fig. 9 It is a structural schematic diagram of the driving mechanism of the present invention.

[0033] Fig.10 It is a schematic diagram of the internal structure of the driving mechanism of the present invention.

[0034] Fig.11 It is a structural schematic diagram of the first transmission assembly, the second transmission assembly, the third transmission assembly and the fourth transmission assembly of the present invention.

[0035] Fig.12 It is a cross-sectional view of the first transmission assembly, the second transmission assembly, the third transmission assembly and the fourth transmission assembly of the present invention.

[0036] Fig.13 The present invention Fig.12 Schematic diagram of the local enlarged structure at point C in the figure.

[0037] In the figure:

[0038] 100, detection device; 110, box; 120, battery; 130, driving mechanism; 140, drilling assembly; 150, detection mechanism;

[0039] 131, partition; 1311, first mounting plate; 132, reduction motor; 1321, driving pulley; 133, first transmission assembly; 134, second transmission assembly; 135, third transmission assembly; 136, first rotating shaft; 1361, first bevel gear; 137, second rotating shaft; 1371, second bevel gear; 138, third rotating shaft; 1381, driven pulley; 139, fourth transmission assembly; 1391, transmission wheel; 1392, hollow belt single groove wheel; 1393, first electromagnet; 1394, first slider; 1395, second electromagnet; 1396, first iron block; 1397, second iron block; 1398, first mounting groove; 1399, second mounting groove;

[0040] 141, end cover; 142, hollow drill rod; 143, hollow rotating shaft; 144, third bevel gear; 145, spiral blade; 146, strip slot hole; 147, strip electromagnet; 148, positioning hole;

[0041] 151, fourth rotating shaft; 1511, fourth bevel gear; 152, threaded sleeve; 1521, connecting column; 1522, mounting frame; 1523, third iron block; 1524, second sliding block; 1525, third mounting groove; 1526, fourth iron block; 1527, third electromagnet; 1528, second mounting plate; 1529, connecting shaft; 153, conical drill bit; 1531, bearing seat; 1532, positioning column; 154, electric push rod; 155, connecting plate; 156, humidity detection probe;

[0042] 200, top plate;

[0043] 300, base; 310, through hole; 320, mud wheel;

[0044] 400. Hydraulic telescopic rod. DETAILED DESCRIPTION

[0045] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0046] It should be noted that the following detailed descriptions are exemplary and are intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0047] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0048] like Figure 1-13 As shown, a soil moisture detection device comprises a top plate 200, a detection device 100 is installed at the center of the lower surface of the top plate 200, and the detection device 100 is provided with a drilling assembly 140 for drilling a hole in the soil, a detection mechanism 150 for detecting the soil moisture on the circumferential inner wall of the drilled hole, and a driving mechanism 130 for driving the drilling assembly 140 or the detection mechanism 150 to rotate;

[0049] The drilling assembly 140 is provided with a hollow drill rod 142, the top end of the hollow drill rod 142 passes through the bearing at the center position of the bottom end of the box body 110 and extends into the interior of the box body 110, the top end of the hollow drill rod 142 is installed with an end cover 141, the end cover 141 and the hollow drill rod 142 are fixedly connected by fastening bolts, a hollow shaft 143 is installed at the center position of the surface of the end cover 141, and a third bevel gear 144 is installed on the outer wall of the hollow shaft 143, and a spiral blade 145 is installed on the outer wall of the hollow drill rod 142;

[0050] The detection mechanism 150 is provided with a threaded sleeve 152, and the threaded sleeve 152 is located inside the hollow drill rod 142. A threaded hole is provided at the center of the end wall of the threaded sleeve 152, and a fourth rotating shaft 151 is installed in the threaded hole. The other end of the fourth rotating shaft 151 passes through the bearing at the center of the surface of the end cover 141 and the inside of the hollow rotating shaft 143, extends to the inside of the box body 110 and is connected to the fourth bevel gear 1511. A mounting frame 1522 is installed at the bottom end of the fourth rotating shaft 151, and a connecting shaft 1529 is installed at the bottom end of the mounting frame 1522. The other end of the connecting shaft 1529 is installed on the bearing seat. In 1531, the bearing seat 1531 is installed at the top center position of the conical drill bit 153, and the conical drill bit 153 is located at the bottom end of the hollow drill rod 142. A second mounting plate 1528 is provided on the inner side of the mounting frame 1522. An electric push rod 154 is installed on the outer wall of one side of the second mounting plate 1528, and the other end of the electric push rod 154 is connected to the humidity detection probe 156 through the connecting plate 155. When the electric push rod 154 starts to extend and retract, it will drive the humidity detection probe 156 to extend and retract. When the humidity detection probe 156 contacts the circumferential inner wall of the drilled hole, the humidity of the soil will be detected.

[0051] Hydraulic telescopic rods 400 are installed on both sides of the lower surface of the top plate 200, and the bottom end of the hydraulic telescopic rods 400 is installed on the upper surface of the base 300. When the hydraulic telescopic rods 400 are started, they will drive the detection device 100 to move in the Y-axis direction. A through hole 310 is opened at the center of the surface of the base 300, and mud wheels 320 are set on both sides of the lower surface of the base 300. The setting of the mud wheels 320 makes it easy for the device to move on muddy ground.

[0052] An external thread is provided on the outer wall of the fourth rotating shaft 151, and the external thread on the outer wall of the fourth rotating shaft 151 and the threaded hole on the threaded sleeve 152 are threadedly connected. Because the external thread on the outer wall of the fourth rotating shaft 151 and the threaded hole on the threaded sleeve 152 are threadedly connected, when there is a certain connection relationship between the threaded sleeve 152 and the hollow drill rod 142, when the fourth rotating shaft 151 rotates forward or reversely, the threaded sleeve 152 will make a linear motion upward or downward along the outer wall of the fourth rotating shaft 151.

[0053] The top of the conical drill bit 153 is provided with a positioning column 1532, and there are six positioning columns 1532, and the six positioning columns 1532 are arranged in a ring array. The bottom of the hollow drill rod 142 is provided with a positioning hole 148, and there are six positioning holes 148, and the six positioning holes 148 are arranged in a ring array. The outer diameter of the positioning column 1532 is equal to the inner diameter of the positioning hole 148. The positioning column 1532, the positioning hole 148, the hollow drill rod 142, the conical drill bit 153 and other structures are arranged in a coordinated manner. The hollow drill rod 142 and the conical drill bit 153 are The drill bits 153 are designed to be separated. When the positioning column 1532 on the conical drill bit 153 moves into the positioning hole 148 on the hollow drill rod 142, the conical drill bit 153 and the hollow drill rod 142 are in a merged state. When the hollow drill rod 142 rotates, the conical drill bit 153 will be driven to rotate. A strip slot 146 is provided on the inner wall of the hollow drill rod 142. A strip electromagnet 147 is installed in the strip slot 146. There are four strip slots 146, and the four strip slots 146 are distributed in a ring array.

[0054] A connecting column 1521 is installed above the outer wall of the threaded sleeve 152. There are four connecting columns 1521, and the four connecting columns 1521 are distributed in a ring array. A third mounting groove 1525 is opened on the end wall of one end of the connecting column 1521, and a third electromagnet 1527 is installed on the end wall of one end of the third mounting groove 1525. A second slider 1524 is arranged inside the third mounting groove 1525. A third iron block 1523 and a fourth iron block 1526 are respectively installed at both ends of the second slider 1524, and a clearance fit is formed between the outer wall of the second slider 1524 and the groove wall of the third mounting groove 1525. The second slider 1524, the third electromagnet 1527, the third iron block 1523, the fourth iron block 1526 and other structures are arranged in coordination. When the staff controls the connection relationship between the threaded sleeve 152 and the hollow drill rod 142, the staff makes the bar electromagnet 147 energized and magnetic, and the first When the third electromagnet 1527 is powered off and has no magnetism, the strip electromagnet 147 will absorb the third iron block 1523. When the strip electromagnet 147 and the third iron block 1523 are magnetically connected, a part of the second slider 1524 will move into the strip slot 146. There is a clearance fit between the outer wall of the second slider 1524 and the inner wall of the strip slot 146. At this time, the threaded sleeve 152 and the hollow drill rod 142 are in a connected state. When the staff makes the strip electromagnet 147 powered off and has no magnetism, and the third electromagnet 1527 is powered on and has magnetism, the third electromagnet 1527 will absorb the fourth iron block 1526. When the third electromagnet 1527 and the fourth iron block 1526 are magnetically connected, the second slider 1524 itself will move completely into the third mounting groove 1525. At this time, the threaded sleeve 152 and the hollow drill rod 142 are in a disconnected state.

[0055] A partition 131 is provided on the driving mechanism 130, and the partition 131 is arranged above the interior of the box 110. A safety door is provided on the front end wall of the box 110, and a safety lock is provided on the safety door. Heat dissipation windows are provided on the outer walls of both sides of the box 110. The setting of the heat dissipation windows can naturally dissipate the heat inside the box 110. A reduction motor 132 and a battery 120 are respectively installed on both sides of the upper surface of the partition 131. The battery 120 is provided so that the battery 120 can provide electrical energy for the device. A driving pulley 1321 is installed on the output shaft of the reduction motor 132. A first mounting plate 1311 is installed on the lower surface of the partition 131. A second rotating shaft 137, a third rotating shaft 138 and a first rotating shaft 136 are arranged on the outer wall of the first mounting plate 1311 from top to bottom in sequence, and the second rotating shaft 137, the third rotating shaft 138 and the first rotating shaft 136 are all installed in the bearings on the first mounting plate 1311.

[0056] The first transmission assembly 133 and the second bevel gear 1371 are respectively installed on the end walls at both ends of the second rotating shaft 137, the fourth transmission assembly 139 and the first bevel gear 1361 are respectively installed on the end walls at both ends of the first rotating shaft 136, and a driven pulley 1381 is installed on the end wall at one end of the third rotating shaft 138. The second transmission assembly 134 and the third transmission assembly 135 are arranged on the outer wall of the third rotating shaft 138, and the second transmission assembly 134 is located on one side of the third transmission assembly 135. When the reduction motor 132 is started, it will drive the driving pulley 1321 to rotate, and when the driving pulley 1321 rotates, it will drive the driven pulley When the driven pulley 1381 rotates, the third rotating shaft 138 is driven to rotate. When the second transmission assembly 134 and the transmission wheel 1391 on the first transmission assembly 133 are in a connected state with the hollow belt single groove wheel 1392, the rotation of the third rotating shaft 138 drives the second transmission assembly 134 to rotate. The rotation of the second transmission assembly 134 drives the first transmission assembly 133 to rotate. The rotation of the first transmission assembly 133 drives the second rotating shaft 137 to rotate. The rotation of the second rotating shaft 137 drives the second bevel gear 1371 to rotate. The second bevel gear 1371 rotates. When the fourth bevel gear 1511 rotates, the fourth rotating shaft 151 is driven to rotate. When the third transmission assembly 135 and the transmission wheel 1391 on the fourth transmission assembly 139 are in a connected state with the hollow belt single groove wheel 1392, the rotation of the third rotating shaft 138 drives the third transmission assembly 135 to rotate. The rotation of the third transmission assembly 135 drives the fourth transmission assembly 139 to rotate. The rotation of the fourth transmission assembly 139 drives the first rotating shaft 136 to rotate. The rotation of the first rotating shaft 136 drives the first bevel gear 1361 to rotate. The first bevel gear 136 is driven to rotate. The rotation of the bevel gear 1361 drives the third bevel gear 144 to rotate, and the rotation of the third bevel gear 144 drives the hollow shaft 143, the hollow drill rod 142 and the spiral blade 145 to rotate, so that the staff controls the fourth shaft 151 on the detection mechanism 150 to rotate or the drilling assembly 140 to rotate by controlling the connection relationship between the transmission wheel 1391 on the second transmission assembly 134 and the first transmission assembly 133 and the hollow belt single groove wheel 1392, and the connection relationship between the transmission wheel 1391 on the third transmission assembly 135 and the fourth transmission assembly 139 and the hollow belt single groove wheel 1392;

[0057] The driving pulley 1321 is connected to the driven pulley 1381 through a transmission belt, and the transmission belt passes through the rectangular slot on the surface of the partition 131. The first transmission component 133 is connected to the second transmission component 134 through a transmission belt, and the third transmission component 135 is connected to the fourth transmission component 139 through a transmission belt.

[0058] The second bevel gear 1371 is meshedly connected with the fourth bevel gear 1511 , and the first bevel gear 1361 is meshedly connected with the third bevel gear 144 .

[0059] The first transmission assembly 133, the second transmission assembly 134, the third transmission assembly 135 and the fourth transmission assembly 139 are all provided with a transmission wheel 1391, and a hollow belt single groove wheel 1392 is installed on the circumferential outer wall of the transmission wheel 1391, and an annular protrusion is provided on the circumferential inner wall of the hollow belt single groove wheel 1392, and the other end of the annular protrusion is installed in the annular groove, and the outer wall of the annular protrusion and the groove wall of the annular groove are clearance-fitted, and the annular groove is opened on the circumferential outer wall of the transmission wheel 1391.

[0060] A first mounting groove 1398 is provided on the inner wall of the bearing of the annular protrusion, and a first electromagnet 1393 is installed on the inner end wall of the first mounting groove 1398. There are six first mounting grooves 1398, and the six first mounting grooves 1398 are distributed in an annular array. A second mounting groove 1399 is provided on the inner end wall of the annular groove, and there are six second mounting grooves 1399, and the six second mounting grooves 1399 are distributed in an annular array. A second electromagnet 1395 is installed on the inner end wall of the second mounting groove 1399. The second mounting groove 1399 is provided with a There is a first slider 1394, and the end walls at both ends of the first slider 1394 are respectively installed with a first iron block 1396 and a second iron block 1397, and the outer wall of the first slider 1394 and the groove wall of the second mounting groove 1399 are clearance-matched. Since the outer wall of the first slider 1394 and the groove wall of the second mounting groove 1399 are clearance-matched, the movement of the first slider 1394 can be limited and guided. The first iron block 1396, the second iron block 1397, the first slider 1394, the second mounting groove 1399, and the first mounting groove 1399 are 98. The second electromagnet 1395, the first electromagnet 1393 and other structures are arranged in coordination. When the staff controls the connection between the transmission wheel 1391 and the hollow belt single groove wheel 1392, the staff makes the first electromagnet 1393 energized and magnetic, and the second electromagnet 1395 is powered off and non-magnetic, the first electromagnet 1393 will absorb the second iron block 1397. When the first electromagnet 1393 and the second iron block 1397 are magnetically connected, a part of the first slider 1394 will move into the first mounting groove 1398. At this time, the transmission wheel 1391 and the hollow belt single groove wheel 1392 are in a connected state. When the staff makes the first electromagnet 1393 power off and non-magnetic, and the second electromagnet 1395 power on and magnetic, the second electromagnet 1395 will absorb the first iron block 1396. When the second electromagnet 1395 and the first iron block 1396 are magnetically connected, the first slider 1394 itself will move entirely to the second mounting groove 1399. At this time, the transmission wheel 1391 and the hollow belt single groove wheel 1392 are not in a connected state.

[0061] During use, when the staff conducts soil moisture detection on the soil to be detected, the staff first places the conical drill bit 153 at the bottom end of the hollow drill rod 142, and the staff starts the driving mechanism 130 and makes the driving mechanism 130 drive the drilling assembly 140 to rotate. When the drilling assembly 140 rotates, the conical drill bit 153 on the detection assembly will be driven to rotate. The staff starts the hydraulic telescopic rod 400 and makes the hydraulic telescopic rod 400 drive the detection device 100 to make a downward linear motion in the Y-axis direction. When the conical drill bit 153 and the drilling assembly 140 make a downward linear motion in the Y-axis direction, the soil will be drilled. When the drilled hole reaches a certain depth, the staff turns off the driving mechanism 130 and the hydraulic After the telescopic rod 400 is pressed, the staff starts the hydraulic telescopic rod 400 again and makes the conical drill bit 153 move upward a certain distance and then closes the hydraulic telescopic rod 400, and the conical drill bit 153 is still in the drilled hole. The staff controls the connection relationship between the threaded sleeve 152 and the hollow drill rod 142 by controlling whether the bar electromagnet 147 and the third electromagnet 1527 are energized and have magnetism. After the staff makes the threaded sleeve 152 and the hollow drill rod 142 have a certain connection relationship, the staff starts the driving mechanism 130 again and makes the driving mechanism 130 drive the fourth rotating shaft 151 on the detection mechanism 150 to rotate forward or reverse. The fourth rotating shaft 151 is connected by a threaded fit, so that when the fourth rotating shaft 151 rotates forward or reversely, the threaded sleeve 152 will make an upward or downward linear motion along the outer wall of the fourth rotating shaft 151. When the staff makes the threaded sleeve 152 make a downward linear motion along the outer wall of the fourth rotating shaft 151, it will drive the conical drill bit 153, the humidity detection probe 156 and other structures to make an upward linear motion. When the humidity detection probe 156 and other structures are moved out of the interior of the hollow drill rod 142, the staff turns off the driving mechanism 130, and the staff starts the electric push rod 154 to drive the humidity detection probe 156 to telescopically move and make the humidity detection probe 156 detect the soil humidity of the circumferential inner wall of the drilled hole. When different positions of the circumferential inner wall of the drilled hole need to be detected When performing the inspection, the staff makes the threaded sleeve 152 and the hollow drill rod 142 have no connection relationship, and then starts the driving mechanism 130 and makes the driving mechanism 130 drive the fourth rotating shaft 151 to rotate. At this time, when the fourth rotating shaft 151 rotates, it will drive the threaded sleeve 152, the mounting frame 1522 and the humidity detection probe 156 to rotate. The humidity detection probe 156 can rotate so as to detect the soil humidity at different positions of the circumferential inner wall of the drilled hole. When the staff detects the humidity of the soil at different depths in the drilled hole, the staff starts the hydraulic telescopic rod 400 to indirectly drive the humidity detection sensor to move in the Y-axis direction. From the above, it can be seen that the humidity detection probe 156 can rotate.Therefore, the humidity detection probe 156 can detect different depths of the drilled holes and different positions inside the holes in the circumference. Therefore, the present invention can directly drill holes in the soil and detect the soil humidity on the circumferential inner walls of the holes drilled at different depths, thereby realizing fast, continuous and accurate humidity measurement of soils at different depths.

[0062] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A soil moisture detection device, comprising a top plate (200), characterized in that: A detection device (100) is installed at the center of the lower surface of the top plate (200), and the detection device (100) is provided with a drilling assembly (140) for drilling soil, a detection mechanism (150) for detecting soil moisture on the circumferential inner wall of the drilled hole, and a driving mechanism (130) for driving the drilling assembly (140) or the detection mechanism (150) to rotate; The drilling assembly (140) is provided with a hollow drill rod (142), the top end of the hollow drill rod (142) passes through the bearing at the center position of the bottom end of the box (110) and extends into the interior of the box (110), the top end of the hollow drill rod (142) is installed with an end cover (141), the center position of the surface of the end cover (141) is installed with a hollow rotating shaft (143), and the outer wall of the hollow rotating shaft (143) is installed with a third bevel gear (144), and the outer wall of the hollow drill rod (142) is installed with a spiral blade (145); The detection mechanism (150) is provided with a threaded sleeve (152), and the threaded sleeve (152) is located inside the hollow drill rod (142). A threaded hole is opened at the center of the end wall of the threaded sleeve (152), and a fourth rotating shaft (151) is installed in the threaded hole. The other end of the fourth rotating shaft (151) passes through the bearing at the center of the surface of the end cover (141) and the inside of the hollow rotating shaft (143), extends to the inside of the box (110), and is connected to the fourth bevel gear (1511). The bottom end of the fourth rotating shaft (151) is provided with a mounting frame (1522), and the mounting frame (1522) is installed. A connecting shaft (1529) is installed at the bottom end of the mounting frame (1522), the other end of the connecting shaft (1529) is installed in a bearing seat (1531), the bearing seat (1531) is installed at the top center position of the conical drill bit (153), and the conical drill bit (153) is located at the bottom end of the hollow drill rod (142), a second mounting plate (1528) is arranged on the inner side of the mounting frame (1522), an electric push rod (154) is installed on the outer wall of one side of the second mounting plate (1528), and the other end of the electric push rod (154) is connected to the humidity detection probe (156) through a connecting plate (155).

2. The soil moisture detection device according to claim 1, characterized in that: Hydraulic telescopic rods (400) are installed on both sides of the lower surface of the top plate (200), and the bottom ends of the hydraulic telescopic rods (400) are installed on the upper surface of the base (300). A through hole (310) is opened at the center of the surface of the base (300), and mud wheels (320) are arranged on both sides of the lower surface of the base (300).

3. The soil moisture detection device according to claim 1, characterized in that: An external thread is provided on the outer wall of the fourth rotating shaft (151), and the external thread on the outer wall of the fourth rotating shaft (151) is thread-matched with the threaded hole on the threaded sleeve (152).

4. The soil moisture detection device according to claim 1, characterized in that: A positioning column (1532) is installed at the top of the conical drill bit (153), and there are six positioning columns (1532), and the six positioning columns (1532) are distributed in a ring array. A positioning hole (148) is opened at the bottom of the hollow drill rod (142), and there are six positioning holes (148), and the six positioning holes (148) are distributed in a ring array. The outer diameter of the positioning column (1532) is equal to the inner diameter of the positioning hole (148). A strip slot (146) is opened on the inner wall of the hollow drill rod (142), and a strip electromagnet (147) is installed in the strip slot (146), and there are four strip slots (146), and the four strip slots (146) are distributed in a ring array.

5. The soil moisture detection device according to claim 1, characterized in that: A connecting column (1521) is installed above the outer wall of the threaded sleeve (152), and there are four connecting columns (1521), and the four connecting columns (1521) are distributed in a ring array, and the end wall of one end of the connecting column (1521) is provided with a third installation groove (1525), and a third electromagnet (1527) is installed on the end wall of one end of the third installation groove (1525), and a second slider (1524) is arranged inside the third installation groove (1525), and a third iron block (1523) and a fourth iron block (1526) are respectively installed at both ends of the second slider (1524), and there is a clearance fit between the outer wall of the second slider (1524) and the groove wall of the third installation groove (1525).

6. The soil moisture detection device according to claim 1, characterized in that: The driving mechanism (130) is provided with a partition (131), the partition (131) is arranged above the interior of the box (110), a safety door is arranged on the front end wall of the box (110), a safety lock is arranged on the safety door, and heat dissipation windows are arranged on the outer walls of both sides of the box (110), a reduction motor (132) and a battery (120) are respectively installed on both sides of the upper surface of the partition (131), an output shaft on the reduction motor (132) is installed with a driving pulley (1321), a first mounting plate (1311) is installed on the lower surface of the partition (131), and a second rotating shaft (137), a third rotating shaft (138) and a first rotating shaft (136) are arranged on the outer wall of the first mounting plate (1311) from top to bottom, and the second rotating shaft (137), the third rotating shaft (138) and the first rotating shaft (136) are all installed in bearings on the first mounting plate (1311).

7. The soil moisture detection device according to claim 6, characterized in that: The end walls at both ends of the second rotating shaft (137) are respectively mounted with a first transmission assembly (133) and a second bevel gear (1371); the end walls at both ends of the first rotating shaft (136) are respectively mounted with a fourth transmission assembly (139) and a first bevel gear (1361); the end wall at one end of the third rotating shaft (138) is mounted with a driven pulley (1381); the outer wall of the third rotating shaft (138) is provided with a second transmission assembly (134) and a third transmission assembly (135), and the second transmission assembly (134) is located on one side of the third transmission assembly (135); The driving pulley (1321) is connected to the driven pulley (1381) via a transmission belt, and the transmission belt passes through the rectangular slot on the surface of the partition (131); the first transmission component (133) is connected to the second transmission component (134) via a transmission belt, and the third transmission component (135) is connected to the fourth transmission component (139) via a transmission belt; The second bevel gear (1371) is meshedly connected to the fourth bevel gear (1511), and the first bevel gear (1361) is meshedly connected to the third bevel gear (144).

8. The soil moisture detection device according to claim 7, characterized in that: The first transmission assembly (133), the second transmission assembly (134), the third transmission assembly (135) and the fourth transmission assembly (139) are all provided with a transmission wheel (1391), and a hollow belt single groove wheel (1392) is installed on the circumferential outer wall of the transmission wheel (1391), and an annular protrusion is provided on the circumferential inner wall of the hollow belt single groove wheel (1392), and the other end of the annular protrusion is installed in the annular groove, and the outer wall of the annular protrusion and the groove wall of the annular groove are clearance-fitted, and the annular groove is opened on the circumferential outer wall of the transmission wheel (1391).

9. The soil moisture detection device according to claim 8, characterized in that: A first mounting groove (1398) is provided on the inner wall of the bearing of the annular protrusion, and a first electromagnet (1393) is installed on the inner end wall of the first mounting groove (1398). There are six first mounting grooves (1398), and the six first mounting grooves (1398) are distributed in a ring array. A second mounting groove (1399) is provided on the inner end wall of the annular groove. There are six second mounting grooves (1399), and the six second mounting grooves (1399) are distributed in a ring array. A second electromagnet (1395) is installed on the inner end wall of the second mounting groove (1399). A first slider (1394) is provided inside the second mounting groove (1399). The end walls at both ends of the first slider (1394) are respectively installed with a first iron block (1396) and a second iron block (1397), and there is a clearance fit between the outer wall of the first slider (1394) and the groove wall of the second mounting groove (1399).

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