Soil hardness detector for soil detection

By adding an extension rod and a movable plate structure to the soil hardness tester, the problems of time-consuming, labor-intensive, and incomplete information in existing testers are solved, enabling flexible depth adjustment and soil moisture detection, and improving the accuracy and comprehensiveness of the measurement.

CN224066547UActive Publication Date: 2026-03-31SHANDONG HUANUO ENG CONSULTING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-13
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

Existing soil hardness testers are time-consuming and labor-intensive, cannot flexibly adjust the testing depth, and can only measure soil hardness at a fixed depth, providing insufficient information.

Method used

A soil hardness tester was designed, which adds an extension rod and a movable plate structure to allow for flexible adjustment of the testing depth and integrates soil moisture detection function. It ensures that the measuring rod is inserted vertically into the ground and adopts a spiral structure for easy installation and disassembly.

Benefits of technology

It enables flexible adjustment of the detection depth, improves the accuracy and comprehensiveness of measurement data, and can simultaneously measure soil hardness and moisture.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of soil hardness detection, in particular to a soil hardness detector for soil detection, which comprises a structure main body, the structure main body comprises a top plate and a bottom plate which are arranged in parallel, a guide post is arranged between the top plate and the bottom plate, a support plate and a movable plate are arranged on the guide post, the support plate is arranged above the movable plate, and the movable plate is arranged above the support plate. The bottom plate is of a triangular structure, a limiting hole is formed in the center of the bottom plate, the bottom of the bottom plate is fixedly connected with a lifting rod, a conical head is arranged at the bottom of the lifting rod, a plurality of through holes are formed in the side edge of the top of the top plate, and extension rods and a humidity measuring mechanism are inserted into the through holes. In addition, a soil humidity detection part is additionally arranged, so that soil information is more comprehensive, and a movable plate is arranged, so that the measuring rod can vertically enter the ground, and measured data is more accurate.
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Description

Technical Field

[0001] This utility model relates to the field of soil testing technology, specifically to a soil hardness tester for soil testing. Background Technology

[0002] Soil hardness, also known as soil compaction, refers to the degree of compaction of soil particles. It is also called soil penetration resistance, or the resistance of soil to wedging. It is generally expressed as the resistance when a metal plunger or probe is pressed into the soil. The resistance of soil to plunger penetration is composed of soil shear force, compressive force, and friction, and is a composite index of soil strength. Soil environmental monitoring refers to determining environmental quality (or pollution level) and its changing trends by measuring representative values ​​of factors affecting soil environmental quality. Soil monitoring, as we usually refer to it, generally includes soil environmental monitoring, which typically includes sampling, sample preparation, analytical methods, result characterization, data statistics, and quality evaluation. Soil testing requires measuring soil hardness. Currently, measuring soil hardness generally requires personnel to forcefully insert the testing instrument into the soil. This method is uneven in force and time-consuming. Soil hardness usually changes with depth, and existing soil hardness testing instruments can only measure soil hardness at a fixed depth, and measuring only soil hardness does not provide comprehensive soil information. Utility Model Content

[0003] The purpose of this invention is to provide a soil hardness tester for soil testing, thereby enabling soil testing.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a soil hardness tester for soil testing, characterized in that it includes a structural body, the structural body comprising a top plate and a bottom plate arranged in parallel, a guide column between the top plate and the bottom plate, a support plate and a movable plate on the guide column, the support plate being above the movable plate, the bottom plate having a triangular structure, a limiting hole in the center of the bottom plate, a lifting rod fixedly connected to the bottom of the bottom plate, the bottom of the lifting rod having a conical head, the limiting hole ensuring that the hardness measuring rod and the moisture measuring mechanism are vertically inserted into the ground, the conical head ensuring that the tester is stably fixed on the ground, the lifting rod adjusting the height of the tester, the support plate having a triangular structure to prevent the extension rod and the moisture measuring mechanism from falling, and the movable plate having a triangular structure to drive the hardness measuring body to move up and down.

[0005] Preferably, the system includes a top plate, which has a triangular structure and multiple through holes on the top side. A motor, a soil hardness display device, and a soil moisture display device are installed on the top of the top plate. An extension rod and a moisture measuring mechanism are inserted into the through holes. The extension rod extends the hardness measuring rod to measure a deeper depth.

[0006] Preferably, a hardness measuring body is fixedly installed at the center of the bottom surface of the movable plate, a hardness measuring rod is rotatably connected to the bottom of the hardness measuring body, and a conductive connector is screwed onto the hardness measuring body. The conductive connector can be connected to a soil hardness display device and a soil moisture display device respectively through wires. When measuring hardness, the wire is connected to the soil hardness display device, and when measuring moisture, it is connected to the soil moisture display device.

[0007] Preferably, the top of the hardness measuring rod has a first external spiral structure, the bottom of the hardness measuring body has a first internal spiral structure, the top of the humidity measuring mechanism has a second external spiral structure, and the top of the hardness measuring body has a second internal spiral structure. The spiral structures facilitate disassembly and installation.

[0008] Preferably, the extension rod has an external spiral at one end and an internal spiral at the other, which facilitates installation and disassembly.

[0009] Preferably, the first inner spiral structure is aligned with the limiting hole to ensure that the measuring rod and the moisture measuring mechanism are inserted vertically into the ground.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] This invention adds a position for extending the rod above the soil hardness tester, allowing for selection of increased testing depth as needed. In addition, this invention adds a soil moisture detection section, making the soil information more comprehensive, and installs a movable plate, allowing the measuring rod to enter the ground vertically, making the measurement data more accurate. Attached Figure Description

[0012] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the installation structure of the soil hardness measuring rod of this utility model;

[0015] Figure 3 This is a schematic diagram of the installation structure of the soil moisture measuring rod of this utility model.

[0016] In the diagram: 1 Top plate, 2 Support plate, 3 Moving plate, 4 Conductive joint, 5 Hardness measuring body, 6 Hardness measuring rod, 7 Guide column, 8 Limiting hole, 9 Base plate, 10 Lifting rod, 11 Conical head, 12 Extension rod, 13 Moisture measuring mechanism, 14 Soil hardness display device, 15 Soil moisture display device, 16 Motor, 17 Wire, 18 First inner spiral structure, 19 First outer spiral structure, 20 Second inner spiral structure, 21 Through hole, 22 Second outer spiral structure. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please refer to the following: Figure 1 Testing soil hardness typically requires personnel to forcefully insert the testing instrument into the soil. This process is uneven and time-consuming. Soil hardness usually changes with depth, and existing soil hardness testers can only measure soil hardness at a fixed depth. Furthermore, measuring only soil hardness does not provide comprehensive soil information.

[0019] Based on the above-mentioned problems, this utility model adds a position for extending the rod above the soil hardness tester, which can be selected to increase the detection depth as needed. In addition, this utility model adds a soil moisture detection part to make the soil information more comprehensive, and installs a movable plate to allow the measuring rod to enter the ground vertically, making the measurement data more accurate. For details, please refer to the following embodiments.

[0020] Please see Figure 1-3 A soil hardness tester for soil testing, characterized in that it comprises: a main body, the main body including a top plate 1 and a bottom plate 9 arranged in parallel, a guide column 7 between the top plate 1 and the bottom plate 9, a support plate 2 and a movable plate 3 on the guide column, the support plate 2 being above the movable plate 3, the bottom plate 9 having a triangular structure, a limiting hole 8 at the center of the bottom plate 9, a lifting rod 10 fixedly connected to the bottom of the bottom plate 9, the lifting rod 10 having a conical head 11 at the bottom, the limiting hole 8 ensuring that the hardness measuring rod 6 and the moisture measuring mechanism 13 are vertically inserted into the ground, the conical head 11 ensuring the tester is stably fixed on the ground, the lifting rod 10 adjusting the height of the tester, the support plate 2 having a triangular structure to prevent the extension rod 12 and the moisture measuring mechanism 13 from falling, and the movable plate 3 having a triangular structure to move the hardness measuring body 5 up and down.

[0021] The device includes a top plate 1, which has a triangular structure. The top side of the top plate 1 has multiple through holes 21. The top of the top plate 1 is equipped with a motor 16, a soil hardness display device 14, and a soil moisture display device 15. An extension rod 12 and a moisture measuring mechanism 13 are inserted into the through holes 21. The function of the extension rod 12 is to extend the hardness measuring rod 6 so as to measure a deeper depth.

[0022] The hardness measuring body 5 is fixedly installed at the center of the bottom surface of the movable plate 3. The hardness measuring body 5 is rotatably connected to the bottom of the hardness measuring body 5. The hardness measuring body 5 is screwed with a conductive connector 4. The conductive connector 4 can be connected to the soil hardness display device 14 and the soil moisture display device 15 respectively through the wire 17. When measuring hardness, the wire 17 is connected to the soil hardness display device 14, and when measuring moisture, it is connected to the soil moisture display device 15.

[0023] The hardness measuring rod 6 has a first outer spiral structure 19 at the top, the hardness measuring body 5 has a first inner spiral structure 18 at the bottom, the humidity measuring mechanism 13 has a second outer spiral structure 22 at the top, and the hardness measuring body 5 has a second inner spiral structure 20 at the top. The spiral structures facilitate disassembly and installation.

[0024] The extension rod 12 has an external spiral at one end and an internal spiral at the other, which facilitates installation and disassembly.

[0025] The first inner spiral structure 18 is aligned with the limiting hole 8 to ensure that the measuring rod 6 and the moisture measuring mechanism 13 are inserted vertically into the ground.

[0026] Working principle: Place the soil hardness tester at the location to be tested, press down firmly to insert the cone head 11 into the ground and fix the tester. Screw the hardness measuring rod 6 into the first inner spiral structure 18 at the bottom of the hardness measuring body 5. Screw the guide connector 4 into the second inner spiral structure 20 at the top of the hardness measuring body 5. Connect the wires 17 to the guide connector 4 and the soil hardness display device 14 respectively. Start the motor 16 to drive the moving plate 3 to move downwards until the hardness measuring rod 6 is inserted into the ground through the limiting hole 8. To test deeper soil layers, turn off the motor 16 and raise the lifting rod 10 to increase the height of the tester. Screw the hardness measuring rod 6 into the middle of the bottom of the hardness measuring body 5. Extend the rod 12, restart the motor 16, and drive the moving plate 3 downward until the measuring rod 6 is inserted into the ground through the limiting hole 8. The detected data will be displayed on the soil hardness display device 14. When detecting soil moisture, screw the moisture measuring mechanism 13 into the first inner spiral structure 18 at the bottom of the hardness measuring body 5, screw the guide connector 4 into the second inner spiral structure 20 at the top of the hardness measuring body 5, connect the wire 17 to the guide connector 4 and the soil moisture display device 15 respectively, start the motor 16, and drive the moving plate 3 downward until the moisture measuring mechanism 13 is inserted into the ground through the limiting hole 8. The detected data will be displayed on the soil moisture display device 15.

[0027] In the description of this utility model, it should be noted that, unless otherwise stated, "a plurality of" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0028] Although the present invention has been described in detail through the above preferred embodiments, it should be understood that the above description should not be considered as a limitation of the present invention. Various modifications and substitutions to the present invention will be apparent to those skilled in the art after reading the above content. Therefore, the scope of protection of the present invention should be defined by the appended claims.

Claims

1. A soil hardness detector for soil testing, characterized by: Including, structural body, the structural body includes parallelly arranged top plate (1) and bottom plate (9), be equipped with guide column (7) between top plate (1) and bottom plate (9), be equipped with support plate (2) and moving plate (3) on the guide column, the support plate (2) is above moving plate (3), the bottom plate (9) is triangular structure, the bottom plate (9) center is equipped with limiting hole (8), the bottom plate (9) bottom fixedly connected lifting rod (10), the lifting rod (10) bottom is equipped with conical head (11).

2. The soil hardness tester for soil testing according to claim 1, characterized in that: Including top plate (1), the top plate (1) is triangular structure, and the top plate (1) top side edge is equipped with a plurality of through holes (21), and the top plate (1) top is equipped with motor (16), soil hardness display device (14) and soil humidity display device (15), the through hole (21) is inserted into extension rod (12) and wetness measuring mechanism (13).

3. The soil hardness tester for soil testing of claim 1, wherein: The moving plate (3) lower bottom surface center position is fixedly installed with hardness measuring body (5), and the hardness measuring body (5) bottom is rotatably connected with hardness measuring rod (6), and the hardness measuring body (5) is rotatably connected with conducting connector (4), and the conducting connector (4) is connected with soil hardness display device (14) and soil humidity display device (15) through wire (17) respectively.

4. The soil hardness tester for soil testing of claim 3, wherein: The hardness measuring rod (6) top has first outer spiral structure (19), and the hardness measuring body (5) bottom has first inner spiral structure (18), and the hardness measuring body (5) top has second inner spiral structure (20).

5. The soil hardness tester for soil testing of claim 2, wherein: The extension rod (12) is one head outer spiral one head inner spiral structure.

6. The soil hardness tester for soil testing of claim 4, wherein: The first inner spiral structure (18) is opposite limiting hole (8).

7. The soil hardness tester for soil testing of claim 2, wherein: The wetness measuring mechanism (13) top has second outer spiral structure (22).