An apparatus for measuring the resistivity of a pile of crushed stone in indoor experiments.

By designing a multi-point measurement and linkage component for the resistivity measurement of crushed stone piles, the problem of existing equipment being unable to simulate the test environment in real time was solved, thus achieving accuracy and ease of operation in resistivity measurement and improving data reliability.

CN119716252BActive Publication Date: 2025-11-14EAST CHINA UNIV OF TECH
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Patent Information

Application Number
CN202411839295.1
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-12-13
Publication Date
2025-11-14
Estimated Expiration
2044-12-13

AI Technical Summary

Technical Problem

Existing equipment cannot simulate the test environment in real time when detecting the resistivity of crushed stone, resulting in large data errors. Furthermore, the measurement environment is in direct contact with the external environment, which affects the accuracy of the resistivity data.

Method used

Design an indoor test device for measuring the resistivity of a pile of crushed stone, comprising a multi-point measurement component and a linkage component. Through components such as a lifting electric slide rail, a vibration motor, and a vacuum pump, the device controls the temperature, humidity, and air pressure of the test environment, adjusts the electrode positions, and performs resistivity measurement using the four-electrode method, thereby reducing errors caused by environmental changes.

Benefits of technology

It effectively improves the accuracy of resistivity measurement, reduces data errors, enhances the ease and comfort of operation, and reduces the cumbersomeness and labor intensity of personnel operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention discloses a device for measuring the resistivity of a gravel pile in indoor testing, relating to the field of gravel resistivity measurement technology. It integrates a processing frame attached to the bottom of the inner side of a processing box. Several lifting electric slide rails are symmetrically installed at equal intervals inside the processing frame. One end of each lifting electric slide rail is connected to a U-shaped locking strip via a slide rail seat. A correction electric slide rail is attached to one end of the U-shaped locking strip. An insulating sleeve is installed at one end of the correction electric slide rail via a slide rail seat. Inlet and outlet electric slide rails are symmetrically installed inside the insulating sleeve. Inlet and outlet electrodes are attached to one end of each inlet and outlet electric slide rail via a slide rail seat. This invention effectively solves the problem in existing technologies where the measurement environment is in direct contact with the external environment, and the environment cannot be effectively controlled, affecting the accuracy of resistivity measurements. Furthermore, by controlling the compaction of the gravel, the resistivity of the gravel pile under different conditions can be measured, effectively improving the accuracy of data measurement.
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Description

Technical Field

[0001] This invention relates to the field of gravel resistivity measurement technology, specifically to a device for measuring the resistivity of gravel piles in indoor tests. Background Technology

[0002] Resistivity measurement of crushed rock piles is an important test method for evaluating the electrical characteristics of soil and rock materials. This measurement has wide applications in civil engineering, geological exploration and environmental monitoring. Resistivity can reflect the water content, porosity and mineral composition of soil or rock. Measurement methods include the four-electrode method, traditional resistance method and georesistivity meter. Nowadays, it is generally done by sampling soil or rock in the environment and using the sampled products for testing.

[0003] However, when testing sampled products, changes in the environment and the compactness of the sample itself, coupled with the inability of existing equipment to simulate the testing environment in real time, lead to data errors at the testing site. Furthermore, the measurement environment is in direct contact with the external environment and cannot be effectively controlled, causing the resistivity to be affected by the external environment during measurement, thus affecting the accuracy of the measured resistivity data. Summary of the Invention

[0004] This invention provides a device for measuring the resistivity of a pile of crushed stone for indoor testing. It can effectively solve the problems mentioned in the background art, such as the changes in the environment and compactness of the sample during the testing of sampled products, the inability of existing equipment to simulate the testing environment in real time, the resulting data errors, and the inability to effectively control the measurement environment due to direct contact with the external environment, which affects the accuracy of the measured resistivity data.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a device for measuring the resistivity of a pile of gravel for indoor testing, comprising an integrated processing box, wherein multiple measuring components are arranged inside the integrated processing box;

[0006] The multi-point measurement assembly includes a processing mating frame;

[0007] The integrated processing box has a processing support frame attached to its inner bottom. Several lifting electric slide rails are symmetrically installed at equal intervals on the inner side of the processing support frame. One end of each lifting electric slide rail is connected to a U-shaped locking strip via a slide rail seat. One end of the U-shaped locking strip is attached to a correction electric slide rail. One end of the correction electric slide rail is installed with an insulating sleeve via a slide rail seat. Inlet and outlet electric slide rails are symmetrically installed on the inner side of the insulating sleeve. One end of each inlet and outlet electric slide rail is attached to an inlet and outlet electrode via a slide rail seat.

[0008] A fixed electromagnetic ring is sleeved on the top inner side of the processing frame. The side end of the fixed electromagnetic ring is magnetically connected to the inlet and outlet processing box. Several vibration springs are equidistantly installed on the bottom inner side of the inlet and outlet processing box. The top ends of the multiple vibration springs are snapped with a load-bearing support frame. A vibration motor is installed on the bottom end of the load-bearing support frame through a motor base. A damper is snapped between the load-bearing support frame and the inside of the inlet and outlet processing box. A sealing airbag is bonded between the side end of the load-bearing support frame and the inlet and outlet processing box.

[0009] An isolation limiting sleeve is snapped into the middle of the inner side of the integrated processing box. A dual-axis motor is installed at equal intervals on the outer end of the isolation limiting sleeve through a motor base. A fixed electromagnet is snapped into the output shaft side of the dual-axis motor. One end of the fixed electromagnet is magnetically connected to an isolation support plate. Several insertion holes are equally spaced on the side end of the isolation limiting sleeve.

[0010] According to the above technical solution, an external pipe rack is connected through one end of the integrated processing box, a vacuum pump is installed at the position of the external pipe rack at one end of the integrated processing box via a motor mount, and a closed sealing cover is hinged to the top of the integrated processing box.

[0011] Several temperature and humidity detectors are equidistantly installed on the top of the closed sealing cover. A sealing electromagnet is snapped into the top of the integrated processing box at the position corresponding to the closed sealing cover. Heating plates are embedded in both ends of the inner side of the isolation limiting sleeve.

[0012] According to the above technical solution, the C-shaped locking strip is slidably sleeved on the side end of the processing and fitting frame, the electrode inlet / outlet side end is slidably fitted with the insulating sleeve, and the insulating sleeve is slidably connected to the C-shaped locking strip.

[0013] According to the above technical solution, there are eight inlet and outlet electrodes and eight insulating sleeves, and the inlet and outlet processing box is placed in the middle of the inner side of the integrated processing box.

[0014] According to the above technical solution, the load-bearing support frame is placed inside the inlet / outlet processing box, and the top of the inlet / outlet processing box is fitted and connected to the bottom of the isolation limiting sleeve.

[0015] According to the above technical solution, the isolation support plate is rotatably embedded in the inner side of the inlet and outlet insertion hole, and one end of the vacuum pump is connected to one end of the outer pipe rack through an adapter.

[0016] According to the above technical solution, the sealing electromagnet is magnetically connected to the closed sealing cover;

[0017] The input terminals of the lifting electric slide rail, the correction electric slide rail, the inlet and outlet electric slide rail, the inlet and outlet electrodes, the fixed electromagnetic ring, the vibration motor, the dual-axis motor, the fixed electromagnet, the vacuum pump, the temperature and humidity detector, the sealing electromagnet, and the heating plate are all electrically connected to the output terminal of the external controller.

[0018] The signal output terminals of the inlet and outlet electrodes and the temperature and humidity detector are electrically connected to the signal input terminal of the external controller;

[0019] The input terminal of the external controller is electrically connected to the output terminal of the external power supply.

[0020] According to the above technical solution, a linkage component is provided on the side of the integrated processing box;

[0021] The linkage component includes an inlet / outlet electric actuator;

[0022] The integrated processing box has several inlet and outlet electric push rods equidistantly clamped at its inner bottom. The bottom of each inlet and outlet electric push rod is clamped to an inlet and outlet alignment plate. Several linkage electric push rods are equidistantly installed at the top of the inlet and outlet alignment plate. The bottom of each linkage electric push rod is clamped to a linkage support plate. One end of the integrated processing box is fixed with an inner hole support block. One end of the inner hole support block is mounted with a rotary motor via a motor base. The output shaft of the rotary motor is clamped to a rotary alignment plate. One end of the rotary alignment plate is symmetrically clamped with alignment electric slide rails. One end of the alignment electric slide rails is mounted with an operation display via a slide rail seat.

[0023] According to the above technical solution, the top end of the inlet / outlet alignment plate is fixedly connected to the bottom end of the inlet / outlet processing box, and the rotating alignment plate is rotatably fitted with the inner hole support block.

[0024] According to the above technical solution, the operation display and the rotating alignment plate are slidably fitted together;

[0025] The input ends of the infeed electric actuator, the linkage electric actuator, the rotary motor, and the positioning electric slide rail are all electrically connected to the output end of the operation display.

[0026] The input terminal of the operation display is electrically connected to the external power supply output.

[0027] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0028] 1. A multi-point measurement component is set up. The crushed stone is placed inside the inlet and outlet processing box and the isolation limit sleeve. The sealing electromagnet is used to close the sealing cover and the integrated processing box sealing combination. The temperature of the environment is changed by the heating plate and the air pressure of the environment is changed by the vacuum pump. The internal humidity can be controlled by the interaction of these components. The temperature, humidity and air pressure of the test environment can be adjusted according to the test requirements to reduce the influence of the test environment on resistivity.

[0029] The lifting electric slide rail drives the U-shaped locking strip, the correction electric slide rail drives the insulating sleeve, and the in-and-out electric slide rail drives the in-and-out electrodes. The positions of the four sets of electrodes are adjusted according to the test requirements. Using the four-electrode method, resistivity is calculated by applying current and measuring voltage. With the help of a dual-axis motor with a fixed electromagnet and an isolation support plate, the in-and-out insertion holes are opened. The vibration motor drives the load-bearing support frame to vibrate and compact the crushed stone with the assistance of vibration springs, dampers and sealing airbags. Multiple sets of resistivity data are tested by measuring the compaction between the crushed stone, the position of the electrode insertion and the distance between the electrodes. This allows for more data to be obtained during the test. Furthermore, real-time simulation is used to detect the corresponding environment, reducing the occurrence of large data errors caused by changes in the test environment and the environment of the crushed stone itself. This makes it easier for testers to understand the resistivity of the crushed stone pile more accurately.

[0030] By controlling the internal temperature, humidity, and pressure through electric heating and air pumps, and coordinating with vibration to change the compaction between the crushed stones, and by using multiple components to change the position of the electrodes relative to the stones and between the electrodes themselves, this effectively solves the problem in existing technologies where the measurement environment is in direct contact with the external environment and the environment cannot be effectively controlled, thus affecting the accuracy of resistivity measurements. Furthermore, by controlling the compaction of the crushed stones, the resistivity of the crushed stone pile under different conditions can be measured, effectively improving the accuracy of data measurement.

[0031] 2. Equipped with a linkage component, the linkage electric actuator drives the linkage support plate to rise and fall, changing the height of the integrated processing box. The in-and-out electric actuator drives the in-and-out alignment plate to move in and out of the processing box, realizing the fitting connection between the in-and-out alignment plate and the processing box and the integrated processing box. This allows for the rapid removal of internal gravel during testing, and the direct lifting process prevents gravel from splashing and falling into the equipment, ensuring the stability of the equipment. At the same time, it improves the efficiency of continuous testing for replacing stones, reduces the tediousness and labor intensity of the testing personnel, and drives the rotation alignment plate by a rotary motor. The alignment electric slide rail drives the operation display, changing the angle and position of the operation display, thereby adjusting the position of the operation display according to the operating habits and improving the comfort of the operator during testing.

[0032] In summary, by cooperating with the multi-point measuring components and linkage components, and through lifting and alignment, rapid replacement of crushed stone can be achieved. In addition, with the help of external control, the internal measuring position can be changed to achieve accurate alignment measurement, which improves the ease and comfort of operation. At the same time, it reduces the error caused by manual direct contact measurement. Through the cooperation of multiple components, the accuracy of measurement is effectively improved. Attached Figure Description

[0033] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0034] In the attached diagram:

[0035] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0036] Figure 2 This is a schematic diagram of the structure of the multi-point measurement component of the present invention;

[0037] Figure 3 This is a schematic diagram of the installation structure of the U-shaped locking strip of the present invention;

[0038] Figure 4 This is a schematic diagram of the mounting structure of the fixed electromagnet of the present invention;

[0039] Figure 5 This is a schematic diagram of the installation structure of the vibration spring of the present invention;

[0040] Figure 6 This is a schematic diagram of the installation structure of the electric slide rail of the present invention;

[0041] Figure 7 This is a schematic diagram of the linkage component of the present invention;

[0042] Figure 8 This is a schematic diagram of the mounting structure of the rotary motor of the present invention;

[0043] Figure 9 This is a cross-sectional schematic diagram of the present invention;

[0044] Labels in the diagram: 1. Integrated processing box;

[0045] 2. Multi-point measurement assembly; 201. Processing mounting frame; 202. Lifting electric slide rail; 203. C-shaped locking strip; 204. Correction electric slide rail; 205. Insulating sleeve; 206. Inlet / outlet electric slide rail; 207. Inlet / outlet electrode; 208. Fixing electromagnetic ring; 209. Inlet / outlet processing box; 210. Vibration spring; 211. Load-bearing support frame; 212. Vibration motor; 213. Damper; 214. Sealing airbag; 215. Isolation limit sleeve; 216. Dual-axis motor; 217. Fixing electromagnet; 218. Isolation support plate; 219. Inlet / outlet insertion hole; 220. External pipe rack; 221. Vacuum pump; 222. Closing sealing cover; 223. Temperature and humidity detector; 224. Sealing electromagnet; 225. Heating plate;

[0046] 3. Linkage components; 301. Infeed / outfeed electric actuator; 302. Infeed / outfeed alignment plate; 303. Linkage electric actuator; 304. Linkage support plate; 305. Inner hole support block; 306. Rotary motor; 307. Rotary alignment plate; 308. Alignment electric slide rail; 309. Operation display. Detailed Implementation

[0047] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0048] Example: Figure 1-9 As shown, the present invention provides a technical solution, a device for measuring the resistivity of a pile of gravel for indoor testing, including an integrated processing box 1, and a multi-point measuring component 2 is arranged inside the integrated processing box 1.

[0049] The multi-point measurement assembly 2 includes a processing mounting frame 201, a lifting electric slide rail 202, a U-shaped locking strip 203, a correction electric slide rail 204, an insulating sleeve 205, an inlet / outlet electric slide rail 206, an inlet / outlet electrode 207, a fixed electromagnetic ring 208, an inlet / outlet processing box 209, a vibration spring 210, a load-bearing support frame 211, a vibration motor 212, a damper 213, a sealing airbag 214, an isolation limit sleeve 215, a dual-axis motor 216, a fixed electromagnet 217, an isolation support plate 218, an inlet / outlet insertion hole 219, an external pipe rack 220, a vacuum pump 221, a closing sealing cover 222, a temperature and humidity detector 223, a sealing electromagnet 224, and a heating plate 225.

[0050] The processing box 1 has a processing support frame 201 attached to its inner bottom. Several lifting electric slide rails 202 are symmetrically installed at equal intervals on the inner side of the processing support frame 201. One end of each lifting electric slide rail 202 is connected to a U-shaped locking strip 203 via a slide rail seat. The U-shaped locking strip 203 is slidably sleeved onto the side end of the processing support frame 201. The side end of the inlet / outlet electrode 207 is slidably attached to the insulating sleeve 205. The insulating sleeve 205 is slidably connected to the U-shaped locking strip 203. Multi-position lifting adjustment is used to simultaneously guide... The support ensures that the electrode can be accurately inserted into the required measurement position, thus ensuring the accuracy of the results. One end of the U-shaped locking strip 203 is locked with a correction electric slide rail 204. One end of the correction electric slide rail 204 is equipped with an insulating sleeve 205 through a slide rail seat. The inner side of the insulating sleeve 205 is symmetrically equipped with inlet and outlet electric slide rails 206. One end of the inlet and outlet electric slide rail 206 is locked with an inlet and outlet electrode 207 through a slide rail seat. There are eight inlet and outlet electrodes 207 and eight insulating sleeves 205 to ensure the accuracy of measurement alignment.

[0051] A fixed electromagnetic ring 208 is sleeved on the top of the inner side of the processing frame 201. The side end of the fixed electromagnetic ring 208 is magnetically connected to the inlet and outlet processing box 209. Several vibration springs 210 are installed at equal intervals on the bottom of the inner side of the inlet and outlet processing box 209. The top of the multiple vibration springs 210 is snapped with a load-bearing support frame 211. The bottom end of the load-bearing support frame 211 is mounted with a vibration motor 212 through a motor base. A damper 213 is snapped between the load-bearing support frame 211 and the inner side of the inlet and outlet processing box 209. A sealing airbag 214 is bonded between the side end of the load-bearing support frame 211 and the inlet and outlet processing box 209.

[0052] An isolation limiting sleeve 215 is snapped into the middle of the inner side of the integrated processing box 1. The inlet and outlet processing box 209 is placed in the middle of the inner side of the integrated processing box 1. The load-bearing support frame 211 is placed inside the inlet and outlet processing box 209. The top of the inlet and outlet processing box 209 is fitted and connected to the bottom of the isolation limiting sleeve 215 to achieve stable feeding and prevent the gravel from splashing and falling to positions outside the measurement, thus ensuring the accuracy of the data. A dual-axis motor 216 is installed at equal intervals on the outer side of the isolation limiting sleeve 215 through the motor base. A fixed electromagnet 217 is snapped into the side of the output shaft of the dual-axis motor 216. One end of the fixed electromagnet 217 is magnetically connected to an isolation support plate 218. Several inlet and outlet insertion holes 219 are opened at equal intervals on the side of the isolation limiting sleeve 215. The isolation support plate 218 is rotatably embedded and installed inside the inlet and outlet insertion holes 219 to ensure the stability of the isolation protection. At the same time, it can be unfolded as required according to the measurement, which is convenient for testing and isolation protection.

[0053] One end of the integrated processing box 1 is connected to an external exhaust pipe rack 220. A vacuum pump 221 is installed at one end of the integrated processing box 1 corresponding to the position of the external exhaust pipe rack 220 via a motor mount. One end of the vacuum pump 221 is connected to one end of the external exhaust pipe rack 220 via an adapter to achieve steady air intake and exhaust processing. A closed sealing cover 222 is hinged to the top of the integrated processing box 1. Several temperature and humidity detectors 223 are equidistantly installed on the top of the closed sealing cover 222. A sealing electromagnet 224 is snapped at the top of the integrated processing box 1 corresponding to the position of the closed sealing cover 222. The sealing electromagnet 224 is magnetically connected to the closed sealing cover 222 to ensure the sealing effect and stability. Electric heating plates 225 are embedded in both ends of the inner side of the isolation limiting sleeve 215.

[0054] For stable operation of the equipment, the input terminals of the lifting electric slide rail 202, the correction electric slide rail 204, the inlet and outlet electric slide rail 206, the inlet and outlet electrode 207, the fixed electromagnetic ring 208, the vibration motor 212, the dual-axis motor 216, the fixed electromagnet 217, the vacuum pump 221, the temperature and humidity detector 223, the sealing electromagnet 224, and the heating plate 225 are all electrically connected to the output terminal of the external controller.

[0055] The signal output terminals of the inlet / outlet electrode 207 and the temperature and humidity detector 223 are both electrically connected to the signal input terminal of the external controller;

[0056] The input terminal of the external controller is electrically connected to the output terminal of the external power supply.

[0057] A linkage component 3 is provided on the side of the integrated processing box 1;

[0058] The linkage component 3 includes an inlet / outlet electric push rod 301, an inlet / outlet alignment plate 302, a linkage electric push rod 303, a linkage support plate 304, an inner hole support block 305, a rotary motor 306, a rotary alignment plate 307, an alignment electric slide rail 308, and an operation display 309.

[0059] Several infeed / outfeed electric actuators 301 are equidistantly engaged at the bottom inner side of the integrated processing box 1. An infeed / outfeed alignment plate 302 is engaged at the bottom of each actuator 301. Several linkage electric actuators 303 are equidistantly mounted at the top of the alignment plate 302. A linkage support plate 304 is engaged at the bottom of each linkage electric actuator 303. An inner hole support block 305 is fixed to one end of the integrated processing box 1. A rotary motor 306 is mounted on one end of the inner hole support block 305 via a motor mount. The output shaft of the rotary motor 306 is engaged with a rotary alignment plate 307. One end of the alignment plate 307 is symmetrically connected to the alignment electric slide rail 308. One end of the alignment electric slide rail 308 is equipped with an operation display 309 through the slide rail seat. The top of the inlet and outlet alignment plate 302 is fixedly connected to the bottom of the inlet and outlet processing box 209. The rotating alignment plate 307 is rotated and fitted with the inner hole support block 305. The operation display 309 is slidably fitted with the rotating alignment plate 307. The multi-stage lifting alignment facilitates the adjustment and processing of the equipment according to the actual operating habits and actual operating conditions of the personnel, thereby improving the comfort of operation.

[0060] To ensure stable operation of the equipment, the input ends of the inlet / outlet electric actuator 301, the linkage electric actuator 303, the rotary motor 306, and the alignment electric slide rail 308 are all electrically connected to the output end of the operation display 309.

[0061] The input terminal of the operation display 309 is electrically connected to the external power supply output.

[0062] The working principle and usage process of this invention are as follows: When resistivity testing of a pile of crushed stone is required, the operator places the integrated processing box 1 on the operating table, supplies power to the equipment via an external power source, and after power supply is complete, activates the operation display 309. The operation display 309 controls the operation of various electrical components of the equipment. The linkage electric push rod 303 drives the linkage support plate 304 to move downwards, lifting the integrated processing box 1. Simultaneously, the in-and-out electric push rod 301 drives the in-and-out alignment plate 302 to push the in-and-out processing box 2 into the inner side of the integrated processing box 1. 09, and finally fit the inlet / outlet alignment plate 302 with the bottom of the integrated processing box 1. At this time, the inlet / outlet processing box 209 is fitted into the position of the fixed electromagnetic ring 208 on the inner side of the processing matching frame 201. The fixed electromagnetic ring 208 positions and engages the inlet / outlet processing box 209 to realize the connection of the equipment. By driving the linkage support plate 304 and the inlet / outlet processing box 209 to rise and fall, the internal crushed stone is quickly discharged, so that it can be operated quickly during continuous testing and reduces the labor intensity and tediousness of the test personnel in picking up and putting down stones.

[0063] The rotary motor 306 drives the rotary alignment plate 307 to rotate along the inner hole support block 305, changing the angle between the rotary alignment plate 307 and the operation display 309. The alignment electric slide rail 308 drives the operation display 309 to move along the rotary alignment plate 307, changing the position of the operation display 309. Thus, the position of the operation display 309 can be adjusted according to the operating habits, improving the comfort of the operator during the test operation.

[0064] After connection, rotate to open the closed sealing cover 222, and pour the debris along the isolation limiting sleeve 215 into the top of the load-bearing support frame 211 at the top of the inlet and outlet processing box 209. After the filling is completed, rotate the closed sealing cover 222 again, and use the sealing electromagnet 224 to seal the closed sealing cover 222 and the integrated processing box 1. After sealing, at this time, according to the type of stone to be tested, the stone environment and the application environment of the stone, the electric heating plate 225 and the vacuum pump 221 can be started. The electric heating plate 225 changes the temperature in the environment, and the vacuum pump 221 changes the air pressure in the environment. The combination of the two can control the internal humidity, so as to adjust the temperature, humidity and air pressure of the test environment.

[0065] After adjustment, the lifting electric slide rail 202 drives the U-shaped locking strip 203 to move along the processing and mating frame 201, the correction electric slide rail 204 drives the insulating sleeve 205 to move along the U-shaped locking strip 203, and the in-and-out electric slide rail 206 drives the in-and-out electrode 207 to move along the insulating sleeve 205. The positions of the four sets of electrodes are adjusted according to the testing requirements. Using the four-electrode method, resistivity is calculated by applying current and measuring voltage. The fixed electromagnet 217 magnetically fixes the isolation support plate 218 according to the required testing position. The dual-axis motor... 216 The fixed electromagnet 217 and the isolation support plate 218 are rotated to open the inlet and outlet insertion hole 219, so that the inlet and outlet electrode 207 is inserted into the pile of crushed stone through the inlet and outlet insertion hole 219 to perform resistivity measurement. With the help of the vibration motor 212 driving the load-bearing support frame 211, the crushed stone is vibrated and compacted under the assistance of the vibration spring 210, damper 213 and sealing air bag 214, thereby further changing the state of the crushed stone pile, making it easier to measure the resistivity of the crushed stone pile under more different conditions, and ensuring the accuracy of the measurement results.

[0066] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An apparatus for measuring the resistivity of a pile of crushed stone in an indoor test, comprising an integrated processing box (1), characterized in that: The integrated processing box (1) is equipped with a multi-point measurement component (2) inside; The multi-point measurement assembly (2) includes a processing mating frame (201); The integrated processing box (1) has a processing support frame (201) attached to its inner bottom. Several lifting electric slide rails (202) are symmetrically installed at equal intervals on the inner side of the processing support frame (201). One end of the lifting electric slide rail (202) is connected to a U-shaped locking strip (203) through a slide rail seat. One end of the U-shaped locking strip (203) is attached to a correction electric slide rail (204). One end of the correction electric slide rail (204) is installed with an insulating sleeve box (205) through a slide rail seat. The inner side of the insulating sleeve box (205) is symmetrically installed with inlet and outlet electric slide rails (206). One end of the inlet and outlet electric slide rail (206) is attached to an inlet and outlet electrode (207) through a slide rail seat. A fixed electromagnetic ring (208) is sleeved on the top inner side of the processing frame (201). The fixed electromagnetic ring (208) is magnetically connected to the inlet and outlet processing box (209) on its side. Several vibration springs (210) are installed at equal intervals on the bottom inner side of the inlet and outlet processing box (209). A load-bearing support frame (211) is snapped onto the top of the multiple vibration springs (210). A vibration motor (212) is installed on the bottom of the load-bearing support frame (211) through a motor seat. A damper (213) is snapped between the load-bearing support frame (211) and the inside of the inlet and outlet processing box (209). A sealing airbag (214) is bonded between the side of the load-bearing support frame (211) and the inlet and outlet processing box (209). An isolation limiting sleeve (215) is snapped into the middle of the inner side of the integrated processing box (1). A dual-axis motor (216) is installed at equal intervals on the outer side of the isolation limiting sleeve (215) through a motor base. A fixed electromagnet (217) is snapped into the output shaft side of the dual-axis motor (216). One end of the fixed electromagnet (217) is magnetically connected to an isolation support plate (218). Several insertion holes (219) are opened at equal intervals on the side of the isolation limiting sleeve (215).

2. The apparatus for measuring the resistivity of a pile of crushed stone for indoor testing according to claim 1, characterized in that, One end of the integrated processing box (1) is connected to an external pipe rack (220). A vacuum pump (221) is installed at one end of the integrated processing box (1) at the position corresponding to the external pipe rack (220) via a motor mount. A closed sealing cover (222) is hinged to the top of the integrated processing box (1). Several temperature and humidity detectors (223) are equidistantly installed on the top of the closed sealing cover (222). A sealing electromagnet (224) is snapped into the top of the integrated processing box (1) at the position corresponding to the closed sealing cover (222). Electric heating plates (225) are embedded in both ends of the inner side of the isolation limiting sleeve (215).

3. The apparatus for measuring the resistivity of a pile of crushed stone for indoor testing according to claim 1, characterized in that, The C-shaped locking strip (203) is slidably sleeved on the side end of the processing and fitting frame (201), the side end of the inlet and outlet electrode (207) is slidably attached to the insulating sleeve (205), and the insulating sleeve (205) is slidably connected to the C-shaped locking strip (203).

4. The apparatus for measuring the resistivity of a pile of crushed stone for indoor testing according to claim 1, characterized in that, There are eight of each of the inlet and outlet electrodes (207) and the insulating sleeve (205), and the inlet and outlet processing box (209) is placed in the middle of the inner side of the integrated processing box (1).

5. The apparatus for measuring the resistivity of a pile of crushed stone for indoor testing according to claim 1, characterized in that, The load-bearing support frame (211) is placed inside the inlet / outlet processing box (209), and the top of the inlet / outlet processing box (209) is fitted and connected to the bottom of the isolation limiting sleeve (215).

6. The apparatus for measuring the resistivity of a gravel pile for indoor testing according to claim 2, characterized in that, The isolation support plate (218) is rotatably embedded in the inner side of the inlet / outlet insertion hole (219), and one end of the vacuum pump (221) is connected to one end of the outer pipe rack (220) via an adapter.

7. The apparatus for measuring the resistivity of a gravel pile in an indoor test according to claim 2, characterized in that, The sealing electromagnet (224) is magnetically connected to the closed sealing cover (222); The input terminals of the lifting electric slide rail (202), the correcting electric slide rail (204), the inlet and outlet electric slide rail (206), the inlet and outlet electrode (207), the fixed electromagnetic ring (208), the vibration motor (212), the dual-axis motor (216), the fixed electromagnet (217), the vacuum pump (221), the temperature and humidity detector (223), the sealing electromagnet (224), and the heating plate (225) are all electrically connected to the output terminal of the external controller; The signal output terminals of the inlet / outlet electrodes (207) and the temperature and humidity detector (223) are both electrically connected to the signal input terminal of the external controller; The input terminal of the external controller is electrically connected to the output terminal of the external power supply.

8. The apparatus for measuring the resistivity of a pile of crushed stone for indoor testing according to claim 7, characterized in that, The integrated processing box (1) is equipped with a linkage component (3) on its side; The linkage component (3) includes an inlet / outlet electric actuator (301); The integrated processing box (1) has several inlet and outlet electric push rods (301) equidistantly connected to its inner bottom. The bottom of the inlet and outlet electric push rods (301) is connected to an inlet and outlet alignment plate (302). The top of the inlet and outlet alignment plate (302) is equipped with several linkage electric push rods (303) equidistantly installed. The bottom of the linkage electric push rods (303) is connected to a linkage support plate (304). One end of the integrated processing box (1) is fixed with an inner hole support block (305). One end of the inner hole support block (305) is equipped with a rotary motor (306) through a motor seat. The output shaft of the rotary motor (306) is connected to a rotary alignment plate (307). One end of the rotary alignment plate (307) is symmetrically connected with an alignment electric slide rail (308). One end of the alignment electric slide rail (308) is equipped with an operation display (309) through a slide rail seat.

9. The apparatus for measuring the resistivity of a gravel pile for indoor testing according to claim 8, characterized in that, The top end of the inlet / outlet alignment plate (302) is fixedly connected to the bottom end of the inlet / outlet processing box (209), and the rotating alignment plate (307) is rotatably fitted with the inner hole support block (305).

10. The apparatus for measuring the resistivity of a gravel pile for indoor testing according to claim 8, characterized in that, The operation display (309) is slidably fitted with the rotating alignment plate (307); The input ends of the inlet / outlet electric actuator (301), the linkage electric actuator (303), the rotary motor (306), and the alignment electric slide rail (308) are all electrically connected to the output end of the operation display (309); The input terminal of the operation display (309) is electrically connected to the external power supply output.

Citation Information

Patent Citations

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