Transient electromagnetic detection device

Abstract

The utility model provides a transient electromagnetic detection device, and mainly relates to the field of transient electromagnetic detection equipment. A transient electromagnetic detection device comprises a chassis. The beneficial effects of the utility model lie in that the rotatable supporting rod is arranged in the middle of the chassis, so that the transmitting and receiving coil can rotate, the vertical surface of the cavern can be detected, the transmitting and receiving coil can also be rotated to the ground direction, the ground direction of the cavern can be detected, and the rotating wheel and the push rod are further arranged, so that the detection accuracy is improved. A telescopic supporting rod is further arranged to enable the transmitting and receiving coil to ascend and descend and used for adjusting the height of the transmitting and receiving coil and adjusting the detection height position, an electric push rod capable of adjusting the telescopic length of the transmitting and receiving coil is arranged on the rear portion of the transmitting and receiving coil, and the extension length of the transmitting and receiving coil is adjusted. And the positions of the inner and outer transmitting coils can be respectively adjusted to adapt to more rock wall shapes and increase the use scenes of the device.

Description

Technical Field

[0001] The utility model mainly relates to the field of transient electromagnetic equipment, in particular to a transient electromagnetic detection device. Background Art

[0002] Transient electromagnetic method is a geophysical exploration method that uses an ungrounded return line or grounded line source to emit a pulse magnetic field underground, and during the interval of a pulse magnetic field, a coil or grounding electrode is used to observe the secondary eddy current field. Simply put, the basic principle of transient electromagnetic method is the law of electromagnetic induction. The attenuation process is generally divided into early, middle and late stages. The early electromagnetic field is equivalent to the high-frequency component in the frequency domain, which decays quickly and has a small skin depth; while the late component is equivalent to the low-frequency component in the frequency domain, which decays slowly and has a large skin depth. By measuring the time-varying law of the secondary field in each time period after power failure, the geoelectric characteristics at different depths can be obtained.

[0003] At present, the method of transient electromagnetic dynamic measurement is to use a towed or hand-pushed non-magnetic measuring vehicle, fix the transmitting and receiving coils on the measuring vehicle for data collection. In the process of transient electromagnetic measurement, it is generally necessary to measure the vertical surface of the rock wall and the ground of the cave. The fixed transmitting and receiving coils make it difficult to take into account the measurement of the vertical surface and the ground, resulting in incomplete data collection. Therefore, a transient electromagnetic detection device that can take into account multiple measurement directions at the same time is needed. Utility Model Content

[0004] In order to solve the shortcomings of the prior art, the utility model provides a transient electromagnetic detection device, the main effect of which is that a rotatable support rod is provided so that the transmitting and receiving coil can be rotated, so that the vertical surface of the cave can be detected, and the transmitting and receiving coil can be rotated to the ground direction to detect the ground direction of the cave. Further, by providing a rotating wheel and a pushing rod, the device can be quickly moved and the direction can be adjusted. A retractable support rod is further provided so that the transmitting and receiving coil can be raised and lowered to adjust the height of the transmitting and receiving coil and to adjust the detection height position. An electric push rod that can adjust the telescopic length of the transmitting and receiving coil is provided at the rear of the transmitting and receiving coil to adjust the extension length of the transmitting and receiving coil, and the positions of the inner and outer transmitting coils can be adjusted respectively to adapt to more rock wall shapes and increase the use scenarios of the device.

[0005] In order to achieve the above purpose, the utility model is implemented through the following technical solutions:

[0006] A transient electromagnetic detection device includes a chassis. A support column groove is provided at the center of the chassis. A rotating support column rod is provided at the front of the support column groove. A rotating support column is sleeved on the rotating support column rod and is rotatably connected thereto. One side of the end of the rotating support column is fixedly provided with a support square tube. An expansion support column is arranged inside the support square tube and is slidably connected thereto. The upper part of the expansion support column is fixedly provided with an outer electromagnetic coil support plate. An inner electromagnetic coil support plate is arranged inside the outer electromagnetic coil support plate. A plurality of connecting plates are fixedly arranged on the inner side of the outer electromagnetic coil support plate and are fixedly connected to the inner electromagnetic coil support plate. A plurality of electric push rods are fixedly arranged on the front sides of the inner electromagnetic coil support plate and the outer electromagnetic coil support plate. An outer electromagnetic coil moving plate is arranged on the front side of the outer electromagnetic coil support plate and is fixedly connected to the telescopic end of the electric push rod arranged thereon. An inner electromagnetic coil moving plate is arranged on the front side of the inner electromagnetic coil support plate and is fixedly connected to the telescopic end of the electric push rod arranged thereon. A plurality of electromagnetic coil buckles are fixedly arranged on the front sides of the outer electromagnetic coil moving plate and the inner electromagnetic coil moving plate. An outer electromagnetic coil is arranged inside the electromagnetic coil buckle arranged on the outer electromagnetic coil moving plate. An inner electromagnetic coil is arranged inside the electromagnetic coil buckle arranged on the inner electromagnetic coil moving plate.

[0007] Furthermore, two groups of moving wheels are fixedly arranged on both sides of the lower part of the chassis, and one side of each moving wheel is provided with two groups.

[0008] Furthermore, a fixed support column is fixedly arranged in the middle of the support column groove. Limit column seats are fixedly arranged on both sides of the lower part of the front side of the support column groove. Limit column holes are provided on the side surfaces of the limit column seats. Limit columns are arranged through the two limit column holes and are slidably connected thereto.

[0009] Furthermore, push rod columns are fixedly arranged on both sides of the upper part of one end of the chassis. Push rod bent columns are fixedly arranged on the upper parts of the two push rod columns. A push rod is fixedly arranged between the upper ends of the two push rod bent columns. Lifting limit tracks are fixedly arranged on the inner sides of the two push rod columns. An equipment fixing plate is arranged inside the two lifting limit tracks. An equipment operation table is fixedly arranged on the upper part of the equipment fixing plate. An equipment display screen is fixedly arranged on the upper part of the equipment operation table. A hydraulic cylinder is fixedly arranged at the center of the upper part of one end of the chassis and is fixedly connected to the bottom of the equipment fixing plate.

[0010] Furthermore, a threaded column is fixedly arranged on one side of the upper part of the support square tube. A threaded hole is provided at the center of the threaded column. A threaded knob is arranged inside the threaded hole and is threadedly connected thereto. The end of the threaded knob penetrates through the support square tube and abuts against the side surface of the expansion support column.

[0011] Compared with the prior art, the beneficial effects of the present utility model are:

[0012] 1. By setting up a chassis and rotatable support rods on the chassis, the transmitting and receiving coils on the rotatable support rods can be used to detect the vertical surface of the rock cave. Also, by rotating the support rods, the transmitting and receiving coils can be made to fit the ground for detecting the floor of the rock cave. Further, by rotating the support rods, the transmitting and receiving coils can be folded on top of the chassis, enabling the device to contract, reducing its volume and allowing it to be moved to more narrow positions inside the rock cave.

[0013] 2. By setting up telescopic support rods and telescopic electric push rods at the rear of the transmitting and receiving coils, the detection height of the transmitting and receiving coils can be adjusted, and the extended length of the transmitting and receiving coils can also be adjusted. This allows the transmitting and receiving coils to fit perfectly on the rock wall. Additionally, the inner and outer electromagnetic coils can be adjusted separately by the electric push rods, enabling the transmitting and receiving coils to be adjusted to the correct position to adapt to different rock wall shapes.

[0014] 3. A push rod is set on one side of the chassis, and an equipment fixing plate that can be lifted and lowered by the telescopic hydraulic cylinder is set inside the push rod. An operation console and a display screen are provided to improve the integration of the device. Also, through the lifting structure, the operation console and the display screen can be lifted for convenient use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural view of the present utility model;

[0016] Figure 2 is a schematic structural view of the present utility model;

[0017] Figure 3 is a schematic structural view of the present utility model;

[0018] Figure 4 is a schematic structural view of the chassis of the present utility model;

[0019] Figure 5 is a schematic structural view of the electromagnetic coil support plate of the present utility model;

[0020] Reference numerals shown in the drawings: 1. Chassis; 2. Support column groove; 3. Rotatable support column rod; 4. Rotatable support column; 5. Support square tube; 6. Telescopic support column; 7. Outer electromagnetic coil support plate; 8. Inner electromagnetic coil support plate; 9. Connecting plate; 10. Electric push rod; 11. Outer electromagnetic coil moving plate; 12. Inner electromagnetic coil moving plate; 13. Electromagnetic coil buckle; 14. Outer electromagnetic coil; 15. Inner electromagnetic coil; 16. Moving wheel; 17. Fixed support column; 18. Limit column seat; 19. Limit column hole; 20. Limit column; 21. Push rod column; 22. Push rod bent column; 23. Push rod; 24. Lifting limit track; 25. Equipment fixing plate; 26. Equipment operation console; 27. Equipment display screen; 28. Hydraulic cylinder; 29. Threaded column; 30. Threaded hole; 31. Threaded knob. Detailed Implementation Modes

[0021] In combination with the accompanying drawings and specific embodiments, the present utility model will be further described. It should be understood that these embodiments are only used to illustrate the present utility model and not to limit the scope of the present utility model. In addition, it should be understood that after reading the content taught by the present utility model, those skilled in the art can make various changes or modifications to the present utility model, and these equivalent forms also fall within the scope defined by this application.

[0022] Embodiment: A transient electromagnetic detection device

[0023] As Figures 1-5 shown, a transient electromagnetic detection device, its specific structure includes:

[0024] A transient electromagnetic detection device includes a chassis 1 for supporting the device. A support column groove 2 is provided at the center of the chassis 1. A rotating support column rod 3 is provided at the front of the support column groove 2. A rotating support column 4 is sleeved on the rotating support column rod 3 and is rotatably connected thereto. One side of the end of the rotating support column 4 is fixedly provided with a support square tube 5. A telescopic support column 6 is provided inside the support square tube 5 and is slidably connected thereto. By sliding the telescopic support column 6 inside the support square tube 5, the height of the device connected to the upper part of the telescopic support column 6 is adjusted. The upper part of the telescopic support column 6 is fixedly provided with an outer electromagnetic coil support plate 7. An inner electromagnetic coil support plate 8 is provided inside the outer electromagnetic coil support plate 7. A plurality of connecting plates 9 are fixedly provided on the inner side of the outer electromagnetic coil support plate 7 and are fixedly connected to the inner electromagnetic coil support plate 8. The outer electromagnetic coil 14 and the inner electromagnetic coil 15 are supported by the outer electromagnetic coil support plate 7 and the inner electromagnetic coil support plate 8 for performing transient electromagnetic detection. A plurality of electric push rods 10 are fixedly provided on the front sides of the inner electromagnetic coil support plate 8 and the outer electromagnetic coil support plate 7. An outer electromagnetic coil moving plate 11 is provided on the front side of the outer electromagnetic coil support plate 7 and is fixedly connected to the telescopic end of the electric push rod 10 provided thereon. An inner electromagnetic coil moving plate 12 is provided on the front side of the inner electromagnetic coil support plate 8 and is fixedly connected to the telescopic end of the electric push rod 10 provided thereon. The outer electromagnetic coil support plate 7 and the inner electromagnetic coil support plate 8 are driven to move by the electric push rod 10. A plurality of electromagnetic coil buckles 13 are fixedly provided on the front sides of the outer electromagnetic coil moving plate 11 and the inner electromagnetic coil moving plate 12 for fixing the inner and outer electromagnetic coils. The outer electromagnetic coil 14 is provided inside the electromagnetic coil buckle 13 provided on the outer electromagnetic coil moving plate 11. The inner electromagnetic coil 15 is provided inside the electromagnetic coil buckle 13 provided on the inner electromagnetic coil moving plate 12.

[0025] Two groups of moving wheels 16 are fixedly provided on both sides of the lower part of the chassis 1 for pushing the device to move through the moving wheels 16.

[0026] A fixed support column 17 is fixedly arranged in the middle of the support column groove 2, which is used to support the support square pipe 5 when it is in a folded state. On both sides of the lower part of the front side of the support column groove 2, limit column seats 18 are fixedly arranged. A limit column hole 19 is formed on the side surface of the limit column seat 18. A limit column 20 is arranged through the two limit column holes 19 on both sides and is slidably connected to them. By arranging the limit column 20 inside the limit column hole 19, the rotating support column 4 is supported by the limit column 20, so that the support square pipe 5 can be kept upright. Further, by removing the limit column 20, the rotating support column 4 can be rotated towards the ground, so that the support square pipe 5 and the outer electromagnetic coil 14 and the inner electromagnetic coil 15 arranged thereon can be attached to the ground to detect the ground direction.

[0027] On both sides of the upper part of one end of the chassis 1, push rod columns 21 are fixedly arranged. Push rod bent columns 22 are fixedly arranged on the upper parts of the two push rod columns 21. A push rod 23 is fixedly arranged between the upper ends of the two push rod bent columns 22, which is used to push the chassis 1 to drive the devices arranged thereon. On the inner sides of the two push rod columns 21, lifting limit tracks 24 are fixedly arranged. An equipment fixing plate 25 is arranged inside the two lifting limit tracks 24, which is used to fix the transient electromagnetic equipment. An equipment operation table 26 is fixedly arranged on the upper part of the equipment fixing plate 25. An equipment display screen 27 is fixedly arranged on the upper part of the equipment operation table 26. A hydraulic cylinder 28 is fixedly arranged at the center of the upper part of one end of the chassis 1 and is fixedly connected to the bottom of the equipment fixing plate 25. The hydraulic cylinder 28 is used to push the equipment fixing plate 25, the equipment operation table 26 and the equipment display screen 27 to lift, which is convenient for the operator to use, and the occupied area of the device can be reduced by contraction.

[0028] On one side of the upper part of the support square pipe 5, a threaded column 29 is fixedly arranged. A threaded hole 30 is formed in the center of the threaded column 29. A threaded knob 31 is arranged inside the threaded hole 30 and is threadedly connected to it. The end of the threaded knob 31 passes through the support square pipe 5 and abuts against the side surface of the telescopic support column 6. By the threaded cooperation between the threaded knob 31 and the threaded column 29, the threaded knob 31 moves into the threaded hole 30 to fix the telescopic support column 6, so that the telescopic support column 6 can be fixed to a certain height.

[0029] This solution also includes a controller, the position of which is set according to the actual situation by the staff during operation. The controller is used to control all the electrical appliances in this solution, including but not limited to sensors, motors, telescopic rods, water pumps, solenoid valves, heating wires, heat pumps, display screens, computer input devices, switch buttons, communication devices, lights, speakers and microphones. The controller is an Intel processor, AMD processor, PLC controller, ARM processor or single-chip microcomputer, and the supporting components also include a main board, a memory module, a storage medium and a power supply. The power supply is mains electricity or a lithium battery. When there is a display screen, there is also a graphics card. For the operating principle of the controller, please refer to "Principles of Automatic Control", "Principles and Application Simulation Cases of Microcontrollers" and "Principles and Applications of Sensors" published by Tsinghua University Press. Other books in this field can also be referred to for reading. Other automated controls and electrical appliances not mentioned are all well-known knowledge to those skilled in the art and will not be elaborated here.

[0030] Operating principle:

[0031] When the device is in use, the chassis 1 is pushed by the push rod 23. Further, when moving wheels 16 are arranged at the lower part of the bottom plate 1, the chassis 1 can be pushed to different positions, facilitating the movement of the device to the position to be detected. By arranging a support column groove 2 in the middle of the chassis 1 and arranging a rotating support column rod 3 inside the support column groove 2, a rotatable rotating support column 4 is further sleeved thereon. Further, a support square tube 5 is arranged on one side of the end of the rotating support column 4, and a telescopically slidable telescopic support column 6 is arranged inside the support square tube 5. The telescopic support column 6 is telescoped in the support square tube 5 so that the device provided thereon can be lifted. An outer electromagnetic coil support plate 7 and an inner electromagnetic coil support plate 8 are fixedly arranged on the upper part of the telescopic support column 6, and an electric push rod 10 is fixedly arranged in front of the outer electromagnetic coil support plate 7 and the inner electromagnetic coil support plate 8. The electric push rod 10 drives the outer electromagnetic coil moving plate 11 and the inner electromagnetic coil moving plate 12 to drive the outer electromagnetic coil 14 and the inner electromagnetic coil 15 to move respectively, so that the outer electromagnetic coil 14 and the electromagnetic coil 15 are attached to the rock wall position for further transient electromagnetic detection. By moving the outer electromagnetic coil 14 and the inner electromagnetic coil 15 respectively, the two can be completely attached to rock walls of different shapes. By rotating the rotating support column 4, the rotating support column 4 is placed on the limit column 20, and further the support square tube 5 is in a vertical state. Further, by rotating the threaded knob 31 and adjusting the height of the telescopic support column 6, the heights of the outer electromagnetic coil 14 and the inner electromagnetic coil 15 are adjusted. Further, by adjusting the telescopic length of the electric push rod 10, the outer electromagnetic coil moving plate 11 and the inner electromagnetic coil moving plate 12 are respectively driven to extend, so that the outer electromagnetic coil 14 and the inner electromagnetic coil 15 provided on the outer electromagnetic coil moving plate 11 and the inner electromagnetic coil moving plate 12 are attached to the vertical surface of the rock cave for further detection work. Further, the limit column 20 is removed, the rotating support column 4 is rotated to the bottom, and the outer electromagnetic coil support plate 7 and the inner electromagnetic coil support plate 8 are moved to the position of the rock cave ground, so that the outer electromagnetic coil 14 and the inner electromagnetic coil 15 provided thereon are attached to the ground for detection. After the detection is completed, the support square tube 5 is flipped to the upper part of the chassis, and the support square tube 5 is supported by the fixed support column 17, so that the telescopic support column 6 and the outer electromagnetic coil moving plate 11 and the like provided thereon are folded on the upper part of the chassis 1, reducing the volume of the device and improving the mobility of the device. Further, a lifting limit track 24 is fixedly arranged inside the push rod column 21, and a device fixing plate 25 is arranged inside the two lifting limit tracks 24 for fixing the transient electromagnetic device. An equipment operation platform 26 is fixedly arranged on the upper part of the device fixing plate 25, and an equipment display screen 27 is fixedly arranged on the upper part of the equipment operation platform 26.At the upper center of one end of the chassis 1, a hydraulic cylinder 28 is fixedly installed and fixedly connected to the bottom of the equipment fixing plate 25. The equipment fixing plate 25, the equipment operation table 26, and the equipment display screen 27 are lifted by the hydraulic cylinder 28, which is convenient for operators to use. Moreover, by retracting the equipment fixing plate 25, the occupied area of the device can be reduced. The structure of this device is simple, which can increase the usage scenarios of transient electromagnetic equipment, reduce the floor area of the device, and increase its mobility, making it suitable for popularization and use.

[0032] In the explanation of the present utility model, it should be noted that the terms indicating directions are only for convenience of description and understanding, and do not uniquely limit the installation positions of specific technical features, excluding other installable ways that can be achieved.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model, rather than to limit them; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. A transient electromagnetic detection device, comprising a chassis (1), characterized in that: The center of the chassis (1) is provided with a support column slot (2), the front part of the support column slot (2) is provided with a rotating support column rod (3), the rotating support column rod (3) is sleeved with a rotating support column (4) and is rotatably connected thereto, a supporting square tube (5) is fixedly provided on one side of the end of the rotating support column (4), a telescopic support column (6) is provided inside the supporting square tube (5) and is slidably connected thereto, an outer electromagnetic coil support plate (7) is fixedly provided on the upper part of the telescopic support column (6), an inner electromagnetic coil support plate (8) is provided inside the outer electromagnetic coil support plate (7), a plurality of connecting plates (9) are fixedly provided on the inner side of the outer electromagnetic coil support plate (7) and are fixedly connected to the inner electromagnetic coil support plate (8), and the inner electromagnetic coil support plate (8) is connected to the outer electromagnetic coil support plate (7). ) are fixedly provided with a plurality of electric push rods (10) on the front side, the outer electromagnetic coil support plate (7) is provided with an outer electromagnetic coil moving plate (11) on the front side and is fixedly connected to the telescopic end of the electric push rod (10) provided thereon, the inner electromagnetic coil support plate (8) is provided with an inner electromagnetic coil moving plate (12) on the front side and is fixedly connected to the telescopic end of the electric push rod (10) provided thereon, a plurality of electromagnetic coil buckles (13) are fixedly provided on the front sides of the outer electromagnetic coil moving plate (11) and the inner electromagnetic coil moving plate (12), the outer electromagnetic coil moving plate (11) is provided with an outer electromagnetic coil (14) inside the electromagnetic coil buckle (13), and the inner electromagnetic coil moving plate (12) is provided with an inner electromagnetic coil (15) inside the electromagnetic coil buckle (13).

2. A transient electromagnetic detection device according to claim 1, characterized in that: Moving wheels (16) are fixedly provided on both sides of the lower part of the chassis (1), and two groups of moving wheels (16) are provided on one side.

3. A transient electromagnetic detection device according to claim 1, characterized in that: A fixed support column (17) is fixedly provided in the middle of the support column slot (2), and limiting column seats (18) are fixedly provided on both sides of the front lower part of the support column slot (2), and limiting column holes (19) are provided on the sides of the limiting column seats (18), and limiting columns (20) are provided inside the limiting column holes (19) on both sides to be slidably connected with the two.

4. A transient electromagnetic detection device according to claim 1, characterized in that: Push rod columns (21) are fixedly provided on both sides of the upper part of one end of the chassis (1), push rod bending columns (22) are fixedly provided on the upper parts of the push rod bending columns (21) on both sides, push rods (23) are fixedly provided between the upper ends of the push rod bending columns (22) on both sides, lifting limit rails (24) are fixedly provided on the inner sides of the push rod columns (21) on both sides, and equipment fixing plates (25) are provided inside the lifting limit rails (24) on both sides, equipment operating tables (26) are fixedly provided on the upper parts of the equipment fixing plates (25), and equipment display screens (27) are fixedly provided on the upper parts of the equipment operating tables (26), and a hydraulic cylinder (28) is fixedly provided at the center of the upper part of one end of the chassis (1) and is fixedly connected to the bottom of the equipment fixing plates (25).

5. A transient electromagnetic detection device according to claim 1, characterized in that: A threaded column (29) is fixedly provided on one side of the upper portion of the supporting square tube (5), a threaded hole (30) is provided at the center of the threaded column (29), a threaded knob (31) is provided inside the threaded hole (30) and is threadedly connected thereto, and an end of the threaded knob (31) passes through the supporting square tube (5) and abuts against a side surface of the telescopic supporting column (6).

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