Soil moisture content automatic detection equipment

Abstract

The utility model relates to the technical field of soil moisture content detection, in particular to automatic soil moisture content detection equipment which comprises a mounting pipe, a partition plate is arranged in the mounting pipe, the partition plate and the inner wall of the mounting pipe on one side form a moving chamber, and the partition plate and the inner wall of the mounting pipe on the other side form an abutting chamber. A lead screw is rotationally arranged in the moving chamber, a through gap is formed in the partition plate in the length direction of the partition plate, a resistance type soil sensor is arranged on the moving block, a probe of the soil sensor extends into the abutting chamber through the gap, and a plurality of pin sets are arranged on the pipe wall of the mounting pipe in the length direction of the mounting pipe. One end of each pin group is located outside the mounting tube, and the other end is located in the abutting chamber; the probes can be correspondingly abutted against the contact pin groups at the corresponding parts; and a motor for driving the screw rod to rotate is arranged on the mounting pipe. According to the invention, one soil sensor can be used for detecting the moisture content of soil at different depths, so that the production input cost of detection equipment is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of soil moisture detection, in particular to automatic soil moisture detection equipment. Background Art

[0002] Soil moisture monitoring is a means of farmland irrigation management that monitors the soil moisture content of the cultivated layer and the soil moisture supply. It is a basic work for farmland water management and regional water resources management. By monitoring soil moisture, we can strictly follow the characteristics of soil moisture to water appropriately at critical moments, control and reduce the number of irrigations and irrigation quotas, reduce inter-tree evaporation, make efficient use of irrigation water, and achieve the purpose of water conservation.

[0003] A tubular soil moisture monitoring station is a device used to monitor soil moisture content and temperature. It includes a hollow mounting tube, multiple tubular soil sensors, and a corresponding data acquisition and storage system. These tubular soil sensors are spaced apart on the mounting tube. When in use, the mounting tube is inserted into the soil to measure the moisture content and temperature of the soil at different depths. Soil sensors usually use capacitive or resistive measurement principles. Capacitive sensors estimate soil moisture content by measuring the dielectric constant between the soil and the sensor, while resistive sensors determine moisture content by measuring the effect of moisture in the soil on resistance through a probe. The sensors of the tubular soil moisture monitoring station transmit the collected moisture content and temperature data to the data acquisition and storage system. This system can be wired or wireless, and it is responsible for receiving and storing sensor data. Common data acquisition and storage systems can store data on the device itself, or upload data in real time by connecting to a cloud platform. The collected soil moisture and temperature data can be transmitted to a computer or mobile device for further processing and analysis. By using the corresponding software, farmers or researchers can view and analyze the changing trends of soil moisture and temperature, understand the dynamic changes in soil moisture conditions, and formulate appropriate irrigation strategies.

[0004] The applicant believes that the tubular soil moisture monitoring station in the related art is convenient for real-time detection of soil moisture at different depths, but the use of more soil sensors leads to increased equipment costs, more data from various parts are collected at the same time, the power consumption caused by data analysis is relatively higher, and the storage space occupied by the data is higher. Utility Model Content

[0005] The utility model aims to provide a soil moisture automatic detection device to solve the problem of high equipment cost of tubular soil moisture monitoring station.

[0006] The utility model is realized by the following technical solutions:

[0007] A soil moisture automatic detection device comprises a mounting tube, wherein a partition is arranged inside the mounting tube along the length direction of the mounting tube, the partition forms a moving chamber with the inner wall of the mounting tube on one side and forms an abutment chamber with the inner wall of the mounting tube on the other side, a moving block is arranged in the moving chamber for sliding along the length direction of the mounting tube, a screw rod is arranged in the moving chamber along the length direction of the mounting tube, and the screw rod rotates along the central axis of the screw rod, a through gap is opened on the partition along the length direction of the partition, a resistive soil sensor is arranged on the moving block, a probe of the resistive soil sensor extends into the abutment chamber through the gap, a plurality of pin groups are arranged on the wall of the mounting tube close to the abutment chamber along the length direction of the mounting tube, one end of the plurality of pin groups is located outside the mounting tube and the other end is located in the abutment chamber; when the resistive soil sensor moves along the length direction of the mounting tube, the probe of the resistive soil sensor can abut against the pin groups at corresponding positions; a motor for driving the screw rod to rotate is arranged on the mounting tube.

[0008] Furthermore, each of the pin groups includes two pins, and the two pins of each pin group are arranged side by side. The two probes of the resistive soil sensor are arranged side by side, and the gap between the two probes is smaller than the gap between the two pins of the pin group. Conductive sheets are provided on the two probes of the resistive soil sensor, and the two conductive sheets are located on the side of the corresponding probe away from the other probe. The two conductive sheets are bent along the circumference of the corresponding probe, and the arc-shaped outer side walls of the two conductive sheets are used to abut against the outer walls of the corresponding pins, and the two conductive sheets are elastic.

[0009] Furthermore, a plurality of through mounting holes are provided on the wall of the mounting tube near the abutment chamber along the length direction of the mounting tube, a mounting post is slidably provided in each mounting hole, a pin group is passed through each mounting post, an adjusting rod is provided in the abutment chamber along the length direction of the mounting tube, the adjusting rod can rotate along its own central axis, a plurality of gears are provided on the adjusting rod, a plurality of racks are provided on the plurality of mounting posts, the racks extend into the abutment chamber, the racks are perpendicular to the length direction of the adjusting rod, and a plurality of gears are correspondingly meshed with a plurality of racks, and when the adjusting rod is rotated, a plurality of pin groups can be adjusted into the mounting tube.

[0010] Furthermore, a sealing ring is arranged in each of the mounting holes, and the plurality of mounting posts pass through the inner ring of the corresponding sealing ring and are slidably sealed with the corresponding sealing ring.

[0011] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0012] In the utility model, before use, a pit is first dug on the ground at a suitable position near the farmland, one side wall of the pit is leveled, and then the detection device is vertically placed in the pit, and multiple pin groups are inserted into the inner side wall of the pit, and then the pit is filled and leveled, and then it can be used. The motor can drive the screw rod to rotate, and the rotation of the screw rod can drive the moving block to move in the moving room, and then the resistive soil sensor can be driven to move in the moving room. The initial position of the resistive soil sensor can be set above the multiple pin groups. When detecting the moisture content of the soil, the resistive soil sensor is controlled to move downward so that the probe of the resistive soil sensor The resistive soil sensor is in correspondence with the pin group at the corresponding position, and one end of the pin group located outside the mounting tube is connected through the soil, so that the resistive soil sensor can measure the moisture content in the soil at the corresponding position by measuring the resistance of the soil. The resistive soil sensor is then controlled to continue to move downward, so as to detect the moisture content of the soil at different depths below, thereby achieving the effect of automatically detecting the moisture content of the soil at different depths through one resistive soil sensor, which is beneficial to reducing the manufacturing cost of the detection equipment. Moreover, since the detection equipment only detects one part of the soil at the same time, it is beneficial to reduce power consumption and reduce data collection and storage. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The drawings described herein are used to provide a further understanding of the embodiments of the present utility model, constitute a part of this application, and do not constitute a limitation of the embodiments of the present utility model.

[0014] In the attached picture:

[0015] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present utility model;

[0016] Figure 2 It is a partial top view of Example 1 of the utility model.

[0017] Marks and corresponding parts names in the attached drawings:

[0018] 1. Mounting tube; 2. Partition; 3. Moving chamber; 4. Abutment chamber; 5. Moving block; 6. Screw rod; 7. Gap; 8. Resistive soil sensor; 9. Pin group; 10. Motor; 11. Conductive sheet; 12. Mounting hole; 13. Mounting column; 14. Adjustment rod; 15. Gear; 16. Rack; 17. Sealing ring; 18. Knob. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in combination with the embodiments and drawings. The schematic implementation mode and description of the utility model are only used to explain the utility model and are not intended to limit the utility model. It should be noted that the utility model is already in the actual development and use stage.

[0020] Example 1

[0021] A soil moisture automatic detection device, referring to Figure 1 , Figure 2 , including a mounting tube 1, a partition 2 is arranged in the mounting tube 1 along the length direction of the mounting tube 1, the partition 2 forms a moving chamber 3 with the inner wall of the mounting tube 1 on one side, and forms an abutting chamber 4 with the inner wall of the mounting tube 1 on the other side, a moving block 5 is slidably arranged in the moving chamber 3 along the length direction of the mounting tube 1, a screw rod 6 is arranged in the moving chamber 3 along the length direction of the mounting tube 1, and the screw rod 6 rotates along the central axis of the screw rod 6, a through gap 7 is opened on the partition 2 along the length direction of the partition 2, and a resistive soil is arranged on the moving block 5 Sensor 8, the probe of the resistive soil sensor 8 extends through the gap 7 into the abutment chamber 4, and a plurality of pin groups 9 are arranged on the wall of the mounting tube 1 near the abutment chamber 4 along the length direction of the mounting tube 1, and one end of the plurality of pin groups 9 is located outside the mounting tube 1 and the other end is located in the abutment chamber 4; when the resistive soil sensor 8 moves along the length direction of the mounting tube 1, the probe of the resistive soil sensor 8 can abut against the pin group 9 at the corresponding position; the mounting tube 1 is provided with a motor 10 for driving the screw rod 6 to rotate. It should be noted that the number of probes must be consistent with the number of pins of each pin group 9, so as to facilitate the effect of connecting the probe with the inside of the soil through the pin group 9.

[0022] Before use, dig a pit at a suitable location near the farmland, level one side wall of the pit, and then place the detection equipment vertically in the pit, and insert multiple pin groups 9 into the inside of the side wall of the pit, and then fill the pit, and then you can start using it. The motor 10 can drive the screw rod 6 to rotate, and the rotation of the screw rod 6 can drive the moving block 5 to move in the moving chamber 3, and then drive the resistive soil sensor 8 to move in the moving chamber 3. The initial position of the resistive soil sensor 8 can be set above the multiple pin groups 9. When detecting the moisture content of the soil, the resistive soil sensor 8 is controlled to move downward, so that the probe of the resistive soil sensor 8 is correspondingly abutted against the pin group 9 at the corresponding position, and the pin group 9 is located outside the mounting tube 1. One end of the sensor is connected through the soil, so that the resistive soil sensor 8 can measure the moisture content of the soil at the corresponding part by measuring the resistance of the soil, and then control the resistive soil sensor 8 to continue to move downward, so as to detect the moisture content of the soil at different depths below, thereby achieving the effect of automatically detecting the moisture content of the soil at different depths through a resistive soil sensor 8, which is conducive to reducing the manufacturing cost of the detection equipment, and because the detection equipment only detects one part of the soil at the same time, in fact, the change in the moisture content inside the soil in a short time is very small, so the necessity of detecting each depth of the soil at all times is not high, and this solution is conducive to reducing power consumption and reducing data collection and storage. It should be noted that since the data acquisition and storage system belongs to a known technical means, the data acquisition and storage system of this device is not shown in the attached figure.

[0023] Further, refer to Figure 1 , Figure 2 Each pin group 9 includes two pins, and the two pins of each pin group 9 are arranged side by side. The two probes of the resistive soil sensor 8 are arranged side by side, and the gap between the two probes is smaller than the gap between the two pins of the pin group 9. Conductive sheets 11 are arranged on the two probes of the resistive soil sensor 8. The two conductive sheets 11 are located on the side of the corresponding probe away from the other probe. The two conductive sheets 11 are bent along the circumference of the corresponding probe, and the arc-shaped outer side walls of the two conductive sheets 11 are used to abut against the outer walls of the corresponding pins, and the two conductive sheets 11 are elastic. When the probe of the resistive soil sensor 8 approaches the pin group 9 at the corresponding position, the outer walls of the two probes are in contact with the protruding outer walls of the corresponding conductive sheet 11, and the two pins can squeeze and deform the corresponding conductive sheet 11, and the two conductive sheets 11 can be bent and deformed in the direction close to the corresponding probes, so that the conductive sheet 11 can be tightly pressed against the corresponding pin, and on the other hand, the moving block 5 and the resistive soil sensor 8 are continuously moved, so that the conductive sheet 11 can pass over the corresponding pin and then be tightly connected with the pin of the pin group 9 below. When the pin is pressed against the conductive sheet 11, the probe of the resistive soil sensor 8 is electrically connected to the corresponding pin.

[0024] Further, refer to Figure 1 , Figure 2 A plurality of through mounting holes 12 are provided on the wall of the mounting tube 1 near the abutting chamber 4 along the length direction of the mounting tube 1, a mounting column 13 is slidably provided in each mounting hole 12, and a pin group 9 is penetrated on each mounting column 13, an adjusting rod 14 is provided in the abutting chamber 4 along the length direction of the mounting tube 1, the adjusting rod 14 can rotate along its own central axis, a plurality of gears 15 are provided on the adjusting rod 14, a plurality of mounting columns 13 are provided with racks 16, one end of the rack 16 extends into the abutting chamber 4, the rack 16 is perpendicular to the length direction of the adjusting rod 14, and a plurality of gears 15 are correspondingly meshed with a plurality of racks 16, and when the adjusting rod 14 is rotated, the plurality of pin groups 9 can be adjusted into the mounting tube 1. In this solution, there is no need to dig a pit. First, multiple pin groups 9 are adjusted into the mounting tube 1, and then the mounting tube 1 is directly inserted below the ground. Then, the adjusting rod 14 is rotated to drive the gear 15 to rotate, and the gear 15 drives the rack 16 to move toward the outside of the mounting tube 1, thereby making the mounting column 13 and multiple pin groups 9 move toward the outside of the mounting tube 1, so that one end of the pin group 9 is located outside the mounting tube 1, which helps to reduce the workload of users in digging pits.

[0025] Further, refer to Figure 1 , Figure 2 A sealing ring 17 is disposed in each mounting hole 12, and a plurality of mounting posts 13 pass through the inner ring of the corresponding sealing ring 17 and are slidably sealed with the corresponding sealing ring 17. The sealing ring 17 can prevent the soil in the soil from entering the interior of the mounting pipe 1 through the mounting hole 12 to a certain extent, which is conducive to keeping the interior of the mounting pipe 1 clean and dry.

[0026] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above description is only the specific implementation method of the utility model and is not used to limit the protection scope of the utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A soil moisture automatic detection device, comprising a mounting pipe (1), characterized in that: A partition (2) is arranged inside the mounting tube (1) along the length direction of the mounting tube (1); the partition (2) forms a moving chamber (3) with the inner wall of the mounting tube (1) on one side and forms an abutting chamber (4) with the inner wall of the mounting tube (1) on the other side; a moving block (5) is slidably arranged inside the moving chamber (3) along the length direction of the mounting tube (1); a screw rod (6) is arranged inside the moving chamber (3) along the length direction of the mounting tube (1), and the screw rod (6) rotates along the central axis of the screw rod (6); a through slit (7) is provided on the partition (2) along the length direction of the partition (2); and a resistive soil sensor is arranged on the moving block (5). The invention relates to a device (8), wherein the probe of the resistive soil sensor (8) extends into the abutment chamber (4) through the slit (7); a plurality of pin groups (9) are arranged on the wall of the mounting tube (1) close to the abutment chamber (4) along the length direction of the mounting tube (1); one end of the plurality of pin groups (9) is located outside the mounting tube (1) and the other end is located inside the abutment chamber (4); when the resistive soil sensor (8) moves along the length direction of the mounting tube (1), the probe of the resistive soil sensor (8) can abut against the pin group (9) at the corresponding position; and a motor (10) for driving the screw rod (6) to rotate is arranged on the mounting tube (1).

2. The automatic soil moisture detection device according to claim 1, characterized in that: Each of the pin groups (9) comprises two pins, and the two pins of each pin group (9) are arranged side by side. The two probes of the resistive soil sensor (8) are arranged side by side, and the gap between the two probes is smaller than the gap between the two pins of the pin group (9). Both probes of the resistive soil sensor (8) are provided with conductive sheets (11), and the two conductive sheets (11) are located on the side of the corresponding probe away from the other probe. The two conductive sheets (11) are bent along the circumference of the corresponding probe, and the arc-shaped outer side walls of the two conductive sheets (11) are used to abut against the outer wall of the corresponding pin, and the two conductive sheets (11) are elastic.

3. The automatic soil moisture detection device according to claim 2, characterized in that: A plurality of through mounting holes (12) are provided on the wall of the mounting tube (1) near the abutment chamber (4) along the length direction of the mounting tube (1), a mounting post (13) is slidably provided in each mounting hole (12), a pin group (9) is penetrated on each mounting post (13), an adjustment rod (14) is provided in the abutment chamber (4) along the length direction of the mounting tube (1), the adjustment rod (14) can rotate along its own central axis, a plurality of gears (15) are provided on the adjustment rod (14), a plurality of racks (16) are provided on the plurality of mounting posts (13), the racks (16) extend into the abutment chamber (4), the racks (16) are perpendicular to the length direction of the adjustment rod (14), and a plurality of gears (15) and a plurality of racks (16) are correspondingly meshed, and when the adjustment rod (14) is rotated, the plurality of pin groups (9) can be adjusted into the mounting tube (1).

4. The automatic soil moisture detection device according to claim 3 is characterized in that: A sealing ring (17) is provided in each of the mounting holes (12), and the plurality of mounting posts (13) pass through the inner ring of the corresponding sealing ring (17) and are slidably sealed with the corresponding sealing ring (17).

Images