A drilling device for soil resistivity detection
By designing a drilling device for soil resistivity testing, and utilizing a servo motor to drive a threaded rod and a worm gear mechanism, the height and angle of the auger rod can be adjusted, solving the problem of inconvenient sampling location of existing soil sampling tubes and improving sampling flexibility and diversity.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GEOLOGICAL INFORMATION EXPLORATION BRANCH OF SINOPEC PETROLEUM ENG GEOPHYSICS CO LTD
- Filing Date
- 2025-08-11
- Publication Date
- 2026-05-26
AI Technical Summary
Existing soil sampling tubes are inconvenient to adjust the sampling position during sampling, making it difficult to effectively sample other soil around the soil.
A drilling device for soil resistivity testing was designed, comprising a base, mounting frame, drive motor, screw rod, servo motor, and adjustment components. The servo motor drives the screw rod and worm gear mechanism to adjust the height and angle of the screw rod, facilitating soil sampling at different locations and angles.
It improves the diversity and flexibility of soil sampling, enabling convenient sampling of soil at different locations and angles, and enhancing the diversity of sampling results.
Smart Images

Figure CN224282621U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of soil drilling equipment, specifically a drilling device for soil resistivity detection. Background Technology
[0002] Soil resistivity is a physical quantity that measures the resistance of soil to electric current. It is crucial for the design and installation of grounding systems because the performance of a grounding system largely depends on the conductivity of the soil. Understanding soil resistivity is very important in designing lightning protection grounding systems or other applications that require good grounding. Soil with low resistivity helps to form a more effective grounding system, thereby ensuring the safety and reliability of electrical equipment.
[0003] Chinese utility model patent CN219495690U discloses a soil sampling tube, including an outer tube and a drill pipe. The bottom end of the outer tube is fixedly connected to the drill pipe. A connecting frame is fixedly connected to the outside of the outer tube. A movable cover plate is embedded and connected to the front of the outer tube. The connecting frame includes a fixing ring and a fixing plate. The fixing ring is located below the fixing plate and is fixedly connected to the outer wall of the outer tube. This design allows the outer tube to be connected and fixed to an external drive motor. In case of damage to the outer tube or the drill pipe, the outer tube can be quickly removed and replaced. The capacity of the inner tube can be adjusted by rotating an adjusting screw according to the sampling capacity. Soil stored in the inner tube is extracted. The design is simpler, eliminating the need for electromechanical equipment to extract the sampled soil from the sampling tube, thus reducing the overall energy consumption of the device.
[0004] Regarding the aforementioned technologies, the inventors believe that the following defects exist: the soil sampling tube is inconvenient to adjust the sampling position during sampling, and it is inconvenient to sample other soil around the soil.
[0005] To address the problems raised in the background art, those skilled in the art have proposed a drilling device for soil resistivity testing. Utility Model Content
[0006] To address the aforementioned technical problems, this utility model provides a drilling device for soil resistivity detection, which solves the problem that existing soil sampling tubes are inconvenient to adjust the sampling position during sampling and inconvenient to sample other soil around the soil.
[0007] A drilling device for soil resistivity testing includes a base, a through groove at one end of the base, and a mounting frame fixedly connected to the upper surface of the base. The mounting frame has a "U" shaped structure and a mounting column is provided inside the mounting frame. The mounting column includes a mounting groove at its front end, a drive motor installed in the mounting groove, and a screw rod installed at the output end of the drive motor. An adjustment component for adjusting the angle of the mounting column is provided inside the mounting frame.
[0008] The adjustment assembly includes grooves on both sides inside the mounting bracket, sliders slidably connected in the grooves, a rotating shaft fixedly fitted in the mounting column, and a worm gear fixedly fitted on the surface of the rotating shaft. The two ends of the rotating shaft are respectively rotatably connected to one side of the two sliders.
[0009] Preferably, the base has a plurality of symmetrically arranged casters installed at its bottom and a handle installed at its top.
[0010] Preferably, a first servo motor is mounted on the upper end of the mounting bracket, and a threaded rod is mounted on the output end of the first servo motor, the threaded rod being threadedly connected to one of the sliders.
[0011] With the above technical solution, the application scenario of this device is to facilitate drilling and sampling of soil at different locations when detecting soil resistivity. Specifically, by installing the screw rod on the drive motor, starting the drive motor causes the screw rod to rotate. Starting the first servo motor allows its output end to drive the screw rod to rotate, which in turn causes the slider to move within the groove. This allows for adjusting the height of the slider, thus adjusting the height of the mounting column and the screw rod on it, facilitating soil sampling. Furthermore, the tilt angle of the mounting column can be adjusted by the adjustment component, facilitating sampling of other soil around the sampled soil. Compared to existing soil sampling tubes, this device effectively improves the diversity of soil sampling results.
[0012] Preferably, the slider matches the groove, and a rectangular rod is fixedly connected to one side of one of the sliders. A rectangular groove is formed on the lower surface of the rectangular rod, and a worm gear is rotatably connected in the rectangular groove.
[0013] Preferably, a second servo motor is mounted on one end of the rectangular rod, and the output end of the second servo motor is connected to one end of the worm gear via a coupling. The worm gear is meshed with a worm wheel.
[0014] Preferably, a microcontroller is installed on the first servo motor, the second servo motor, and the drive motor.
[0015] With the above technical solution, when in use, starting the second servo motor can drive the worm gear to rotate, the worm gear to rotate, which in turn drives the worm wheel to rotate, which in turn drives the rotating shaft to rotate, and the rotating shaft to rotate the mounting column, thus achieving the effect of adjusting the angle of the screw rod. Furthermore, by installing a microcontroller on the first servo motor, the second servo motor, and the drive motor, the first servo motor, the second servo motor, and the drive motor can be easily controlled remotely with a remote control.
[0016] Compared with the prior art, the present invention has the following beneficial effects:
[0017] 1. This utility model mounts a screw rod onto a drive motor. Starting the drive motor rotates the screw rod, and starting the first servo motor drives the screw rod to rotate via its output end. The rotation of the screw rod causes a slider to move within a groove, thus adjusting the height of the slider. This allows for easier soil sampling by adjusting the height of the mounting column and the screw rod on it. Furthermore, the tilt angle of the mounting column can be adjusted via an adjustment component, facilitating sampling of surrounding soil. Compared to existing soil sampling tubes, this device effectively improves the diversity of soil sampling results.
[0018] 2. This utility model can drive the worm gear to rotate by starting the second servo motor. The rotation of the worm gear can drive the worm wheel to rotate, which can drive the rotating shaft to rotate. The rotation of the rotating shaft can drive the mounting column to rotate, thereby achieving the effect of adjusting the angle of the screw rod. By installing a microcontroller on the first servo motor, the second servo motor, and the drive motor, the first servo motor, the second servo motor, and the drive motor can be easily controlled remotely with a remote control. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0020] Figure 2 This is a bottom view of the base;
[0021] Figure 3 This is a bottom-view three-dimensional structural diagram of the present invention;
[0022] Figure 4 This is a cross-sectional structural diagram of the present invention.
[0023] In the picture:
[0024] 1. Base; 101. Through groove; 102. Caster wheel; 2. Mounting bracket; 201. Slide groove; 202. Slider; 203. First servo motor; 204. Threaded rod; 3. Mounting post; 301. Mounting slot; 302. Drive motor; 303. Helical rod; 304. Rotating shaft; 305. Worm gear; 4. Rectangular rod; 401. Rectangular groove; 402. Second servo motor; 403. Worm gear. Detailed Implementation
[0025] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.
[0026] Example 1: As shown in the attached document Figure 1 To be continued Figure 4 As shown: This utility model provides a drilling device for soil resistivity detection, including a base 1, a through groove 101 opened at one end of the base 1, and a mounting frame 2 fixedly connected to the upper surface of the base 1. The mounting frame 2 has a "U" shaped structure. A mounting column 3 is provided in the mounting frame 2. The mounting column 3 includes a mounting groove 301 opened at its front end face, a drive motor 302 installed in the mounting groove 301, and a spiral rod 303 installed at the output end of the drive motor 302. An adjustment component for adjusting the angle of the mounting column 3 is provided in the mounting frame 2.
[0027] The adjustment assembly includes a slide groove 201 opened on both sides inside the mounting bracket 2, a slider 202 slidably connected in the slide groove 201, a rotating shaft 304 fixedly mounted in the mounting column 3, and a worm gear 305 fixedly mounted on the surface of the rotating shaft 304. The two ends of the rotating shaft 304 are respectively rotatably connected to one side of the two sliders 202.
[0028] The bottom of the base 1 is equipped with several symmetrically arranged casters 102, and the top of the base 1 is equipped with a handle.
[0029] The upper end of the mounting bracket 2 is equipped with a first servo motor 203, and the output end of the first servo motor 203 is equipped with a threaded rod 204, which is threadedly connected to one of the sliders 202.
[0030] As can be seen from the above, the application scenario of this device is to facilitate drilling and sampling of soil at different locations when detecting soil resistivity. Specifically, by installing the screw rod 303 on the drive motor 302, starting the drive motor 302 will cause the screw rod 303 to rotate. Starting the first servo motor 203 will drive the threaded rod 204 to rotate through its output end. The rotation of the threaded rod 204 will cause the slider 202 to move within the groove 201, thereby achieving the effect of raising the slider 202, which in turn achieves the effect of adjusting the height of the mounting column 3 and the screw rod 303 on it, facilitating soil sampling. The tilt angle of the mounting column 3 can be adjusted by the adjustment component, which facilitates sampling of other soil around the sampled soil. Compared with existing soil sampling tubes, this device effectively improves the diversity of soil sampling results.
[0031] Example 2: Based on Example 1, the slider 202 is matched with the groove 201. A rectangular rod 4 is fixedly connected to one side of one of the sliders 202. A rectangular groove 401 is opened on the lower surface of the rectangular rod 4. A worm gear 403 is rotatably connected in the rectangular groove 401.
[0032] A second servo motor 402 is installed at one end of the rectangular rod 4. The output end of the second servo motor 402 is connected to one end of the worm gear 403 via a coupling. The worm gear 403 is meshed with the worm wheel 305.
[0033] A microcontroller is installed on the first servo motor 203, the second servo motor 402, and the drive motor 302.
[0034] As can be seen from the above, in use, starting the second servo motor 402 can drive the worm gear 403 to rotate, the rotation of the worm gear 403 can drive the worm wheel 305 to rotate, which can drive the rotating shaft 304 to rotate, and the rotation of the rotating shaft 304 can drive the mounting column 3 to rotate, thus achieving the effect of adjusting the angle of the screw rod 303. Furthermore, by installing a microcontroller on the first servo motor 203, the second servo motor 402, and the drive motor 302, the first servo motor 203, the second servo motor 402, and the drive motor 302 can be easily controlled remotely with a remote control.
[0035] The embodiments of this utility model are given for the purpose of illustration and description. Although embodiments of this utility model have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the utility model. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this utility model.
[0036] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. "A plurality of" means two or more, unless otherwise explicitly specified.
[0037] All standard parts used in this invention can be purchased from the market, and irregularly shaped parts can be customized according to the description and drawings. The specific connection methods for each part all employ conventional methods such as bolts, rivets, and welding, which are mature technologies in the prior art. The machinery, parts, and equipment all use conventional models in the prior art, and the circuit connections also use conventional connection methods in the prior art, which will not be detailed here. Any content not described in detail in this specification belongs to the prior art known to those skilled in the art.
Claims
1. A drilling apparatus for soil resistivity detection, characterized by: The device includes a base (1), a through slot (101) at one end of the base (1), and a mounting bracket (2) fixedly connected to the upper surface of the base (1). The mounting bracket (2) has a "U" shaped structure. A mounting column (3) is provided inside the mounting bracket (2). The mounting column (3) includes a mounting groove (301) at its front end, a drive motor (302) installed in the mounting groove (301), and a screw rod (303) installed at the output end of the drive motor (302). An adjustment component for adjusting the angle of the mounting column (3) is provided inside the mounting bracket (2). The adjustment assembly includes a slide groove (201) opened on both sides inside the mounting bracket (2), a slider (202) slidably connected in the slide groove (201), a rotating shaft (304) fixedly fitted in the mounting column (3), and a worm gear (305) fixedly fitted on the surface of the rotating shaft (304). The two ends of the rotating shaft (304) are respectively rotatably connected to one side of the two sliders (202).
2. The drilling device for soil resistivity detection as described in claim 1, characterized in that: The base (1) is equipped with several symmetrically arranged casters (102) at its bottom and a handle at its top.
3. The drilling device for soil resistivity detection as described in claim 2, characterized in that: The upper end of the mounting bracket (2) is equipped with a first servo motor (203), and the output end of the first servo motor (203) is equipped with a threaded rod (204), which is threadedly connected to one of the sliders (202).
4. The drilling device for soil resistivity detection as described in claim 3, characterized in that: The slider (202) matches the groove (201), and a rectangular rod (4) is fixedly connected to one side of one of the sliders (202). A rectangular groove (401) is opened on the lower surface of the rectangular rod (4), and a worm gear (403) is rotatably connected in the rectangular groove (401).
5. The drilling device for soil resistivity detection as described in claim 4, characterized in that: A second servo motor (402) is installed at one end of the rectangular rod (4). The output end of the second servo motor (402) is connected to one end of the worm (403) via a coupling. The worm (403) is meshed with the worm wheel (305).
6. The drilling device for soil resistivity detection as described in claim 5, characterized in that: A microcontroller is installed on the first servo motor (203), the second servo motor (402), and the drive motor (302).
Citation Information
Patent Citations
Soil sampling tube
CN219495690U