Transient electromagnetic instrument multi-degree-of-freedom auxiliary support

Abstract

The utility model relates to the technical field of transient electromagnetic instruments, in particular to a multi-degree-of-freedom auxiliary support of a transient electromagnetic instrument. The device comprises a concentric-square-shaped supporting frame, a containing groove formed in the upper surface of the concentric-square-shaped supporting frame and used for containing a transient electromagnetic instrument coil, fixing assemblies symmetrically arranged on the lower surface of the concentric-square-shaped supporting frame, angle adjusting assemblies fixedly connected to the bottoms of the two fixing assemblies correspondingly, and upper supporting rods connected with the bottoms of the two angle adjusting assemblies correspondingly. According to the utility model, the horizontal sensor is arranged to carry out horizontal detection on the electromagnetic instrument coil in the placing groove, and the horizontal adjusting assembly is arranged to be matched with the rotating positioning screw rod to position and unfix one of the lower supporting rods, so that the two upper supporting rods can be rotatably controlled; the two upper supporting rods and the lower supporting rods are adjusted to be in a vertical state, so that the coil is ensured to be horizontal before angle adjustment, the accuracy of angle adjustment of the coil is ensured, and the quality of a detection result of the transient electromagnetic instrument is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of transient electromagnetic instruments, in particular to a multi-degree-of-freedom auxiliary bracket for transient electromagnetic instruments. Background Art

[0002] The transient electromagnetic method uses an ungrounded return line or a grounded line source to emit a pulse magnetic field underground, and uses a coil or a grounding electrode to observe the secondary induced eddy current field caused in the underground medium during the interval of the pulse magnetic field, thereby detecting the resistivity of the medium. Its basic working method is: a transmitting coil with a certain waveform current is set on the ground or in the air, thereby generating an electromagnetic field in the surrounding space and generating an induced current in the underground conductive rock ore body. After power failure, the induced current decays over time due to heat loss.

[0003] When using a transient electromagnetic detector to analyze the physical property differences of rock formations in a tunnel, the angle between the plane where the coil is located and the top and bottom plates depends on the detection requirements and the inclination of the position to be measured, and the coil angle needs to be changed multiple times during the detection process. At present, when the transient electromagnetic detector is used for detection, it is difficult to ensure that the initial angle of the coil is horizontal, which can easily affect the accuracy of the coil angle and orientation control when controlling the coil angle and orientation, thereby reducing the quality of subsequent data acquisition.

[0004] In view of this, we propose a multi-degree-of-freedom auxiliary bracket for transient electromagnetic instrument. Utility Model Content

[0005] The utility model aims to provide a multi-degree-of-freedom auxiliary bracket for a transient electromagnetic instrument to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides a transient electromagnetic instrument multi-degree-of-freedom auxiliary bracket, comprising a round-shaped support frame and a placement groove opened on the upper surface of the round-shaped support frame and used to place the transient electromagnetic instrument coil, a fixing component symmetrically arranged on the lower surface of the round-shaped support frame, an angle adjustment component respectively fixedly connected to the bottom of two fixing components, an upper support rod respectively connected to the bottom of the two angle adjustment components, a lower support rod arranged on the two upper support rods, a horizontal adjustment component respectively connected to the bottom of the two lower support rods, and a horizontal control component arranged below the two horizontal adjustment components;

[0007] The two upper support rods are respectively fixedly connected with a guide column and a guide rod on the opposite sides thereof;

[0008] The fixing assembly cooperates with the angle adjustment assembly to complete the connection between the two upper support rods and the circular support frame, and can fine-tune the angle of the circular support frame;

[0009] The horizontal adjustment component is suitable for rotating the two lower support rods at a fixed point to adjust the relative angle of the two lower support rods.

[0010] Further, the horizontal adjustment assembly includes a base, a support fixedly connected to the upper surface of the base, a movable shaft rotatably connected to the support, a positioning rod movably inserted into the movable shaft, and the positioning rod passes through the movable shaft, an end toothed plate and a positioning plate respectively fixedly connected to both ends of the positioning rod, a tooth groove provided on one side of the support, and a positioning spring movably sleeved on the outside of the positioning rod, and the two ends of the positioning spring are respectively connected to the positioning plate and the support;

[0011] The bottom of the lower support rod is installed on the movable rotating shaft;

[0012] The end toothed disc and the toothed groove are meshed with each other;

[0013] Among them, pressing the positioning plate can make the positioning rod move in the movable shaft and control the end tooth plate to disengage from the tooth groove.

[0014] Furthermore, the fixing assembly includes a fixing platform, a fixing groove provided in the middle of the fixing platform and used to place the circular support frame, a fixing block arranged in the fixing groove, and a fixing screw screwedly mounted on the fixing platform and rotatably connected to the fixing block;

[0015] Wherein, rotating the fixing screw can control the fixing block to move in the fixing groove and approach the circular support frame.

[0016] Further, the angle adjustment assembly includes a first damping shaft, an adjustment seat rotatably connected to the top end of the upper support rod through the first damping shaft, an angle plate fixedly connected to one end of the first damping shaft, and a marking block fixedly connected to the outer wall of the adjustment seat;

[0017] The identification block and the angle disc are arranged on the same side of the adjustment seat, and the identification block is arranged directly above the angle disc;

[0018] The adjustment seat is fixedly connected to the bottom of the fixing platform.

[0019] Further, the horizontal control assembly includes a positioning plate arranged below the two horizontal adjustment assemblies, a positioning slot provided in the positioning plate, a second damping shaft installed at the bottom of the positioning plate, a moving plate rotatably connected to the bottom of the positioning plate through the second damping shaft, and a plurality of universal wheels installed at the bottom of the moving plate;

[0020] The two bases and the support are slidably installed in the positioning groove;

[0021] The upper surface of the movable plate is provided with a scale groove, and the side wall of the positioning plate is fixedly connected with an indicating rod.

[0022] Furthermore, one of the upper support rods is hinged to the lower support rod at its bottom, a slide groove is provided inside the other upper support rod, and a positioning screw is spirally installed at the slide groove of the other upper support rod;

[0023] The lower support rod arranged at the bottom of the other upper support rod has its upper end extending into the slide slot, and one end of the positioning screw rod close to the slide slot abuts against the outer wall of one of the lower support rods.

[0024] Furthermore, the outer walls of the two loop-shaped support frame are fixedly connected with a plurality of mounting blocks, and the plurality of mounting blocks are rotatably connected with positioning blocks;

[0025] The plurality of positioning blocks can be rotated to fit with the upper surface of the circular support frame.

[0026] Furthermore, a guide groove is provided inside the guide column, and the guide rod is slidably inserted into the guide groove.

[0027] Furthermore, a level sensor is fixedly mounted on the lower surface of the guide column, a buzzer is fixedly mounted on the front surface of the guide column, and both the level sensor and the buzzer are electrically connected to the external controller.

[0028] Compared with the prior art, the utility model has the following beneficial effects:

[0029] 1. In the multi-degree-of-freedom auxiliary bracket of a transient electromagnetic instrument, the coil of the transient electromagnetic instrument can be placed in the placement groove, and the connection between the mezzanine support frame and the angle adjustment component can be completed under the action of the fixing component. The angle adjustment component is set to adjust the angle of the mezzanine support frame, which can change the detection angle of the transient electromagnetic instrument, thereby realizing directional detection and effectively improving the detection efficiency and effect of the transient electromagnetic instrument.

[0030] 2. In this transient electromagnetic instrument multi-degree-of-freedom auxiliary bracket, the transient electromagnetic instrument coil to be used is placed in the placement groove, and under the action of the horizontal sensor, the horizontal detection can be carried out before the coil is used. When the coil is tilted due to terrain reasons, the two lower support rods can be adjusted to be vertical with the positioning plate through the two horizontal adjustment components, and the positioning screws can be rotated to release the limit on one of the upper support rods, so that it is convenient to control the two upper support rods to be adjusted to a vertical state around the hinge point of the other upper support rod, so that the coil in the placement groove can be kept horizontal, thereby improving the accuracy of the angle adjustment component in controlling the angle of the coil, which can ensure that the accuracy of the angle and orientation control of the coil is increased when controlling the angle and orientation of the coil, and improve the quality of subsequent transient electromagnetic instrument data acquisition. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0032] Figure 2 It is a three-dimensional structural diagram of the utility model in another state;

[0033] Figure 3 The local split structure of the utility model Figure 1 ;

[0034] Figure 4 The local split structure of the utility model Figure 2 ;

[0035] Figure 5 The local split structure of the utility model Figure 3 ;

[0036] Figure 6 It is a partial three-dimensional structural diagram of the utility model;

[0037] Figure 7 It is a partially disassembled three-dimensional structural diagram of the utility model.

[0038] The meaning of each number in the figure is:

[0039] 1. Meandering support frame; 2. Placement slot; 3. Fixing assembly; 4. Angle adjustment assembly; 5. Upper support rod; 6. Lower support rod; 7. Horizontal adjustment assembly; 8. Guide column; 9. Guide rod; 10. Base; 11. Support; 12. Movable shaft; 13. Positioning rod; 14. End tooth plate; 15. Positioning plate; 16. Tooth groove; 17. Positioning spring; 18. Fixed table; 19. Fixed slot; 20. Fixed block; 21. Fixed screw; 22. First damping shaft; 23. Adjustment seat; 24. Angle plate; 25. Marking block; 26. Slide slot; 27. Positioning screw; 28. Mounting block; 29. ​​Positioning block; 30. Guide slot; 31. Horizontal sensor; 32. Buzzer; 33. Horizontal control assembly; 34. Positioning plate; 35. Positioning slot; 36. Second damping shaft; 37. Moving plate; 38. Scale slot; 39. Indicator rod. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0041] See also Figure 1 - Figure 7 As shown, this embodiment provides a transient electromagnetic instrument multi-degree-of-freedom auxiliary bracket, including a mezzanine support frame 1 and a placement groove 2 opened on the upper surface of the mezzanine support frame 1 and used to place the transient electromagnetic instrument coil, a fixing component 3 symmetrically arranged on the lower surface of the mezzanine support frame 1, an angle adjustment component 4 fixedly connected to the bottom of two fixing components 3, an upper support rod 5 connected to the bottom of two angle adjustment components 4, a lower support rod 6 arranged on the two upper support rods 5, a horizontal adjustment component 7 connected to the bottom of two lower support rods 6, and a horizontal control component 33 arranged below the two horizontal adjustment components 7;

[0042] The two upper support rods 5 are respectively fixedly connected to the opposite sides thereof with a guide column 8 and a guide rod 9;

[0043] The fixing assembly 3 cooperates with the angle adjustment assembly 4 to complete the connection between the two upper support rods 5 and the circular support frame 1, and can fine-tune the angle of the circular support frame 1;

[0044] The horizontal adjustment component 7 is suitable for rotating the two lower support rods 6 at a fixed point to adjust the relative angle between the two lower support rods 6 .

[0045] The above working principle: when in use, the two bases 10 can be placed at the position to be detected, and the coil of the transient electromagnetic instrument can be placed in the placement slot 2. Under the action of the horizontal sensor 31, the horizontal state of the guide column 8 can be detected. When the two upper support rods 5 and the lower support rod 6 are in a non-vertical state, the two lower support rods 6 can be adjusted to a vertical state under the action of the horizontal adjustment component 7. At the same time, the positioning screw 27 can be rotated to release the restriction on the position of one of the lower support rods 6, so that the other upper support rod 5 can be controlled to rotate around the other lower support rod 6. After adjusting the two upper support rods 5 to a vertical state, the positioning screw 27 is rotated to position the lower support rod 6, thereby ensuring that the initial state of the electromagnetic instrument coil in the placement slot 2 is horizontal, and then the angle adjustment component is used to adjust the position of the lower support rod 6. When the component 4 adjusts the coil angle, the accurate and stable adjustment of the coil angle can be ensured, the placement accuracy of the coil during detection is improved, which is beneficial to improving the accuracy of the detection results of the transient electromagnetic instrument, and increasing the quality of subsequent data acquisition. Under the action of the fixing component 3, the disassembly of the mezzanine support frame 1 is convenient, so that when the transient electromagnetic instrument is not in use, the device can be conveniently stored. The angle adjustment component 4 is convenient for adjusting the angle of the transient electromagnetic instrument when the transient electromagnetic instrument is in use, which is convenient for directional detection and effectively improves the detection efficiency. At the same time, when it is necessary to explore different positions in the tunnel, the horizontal control component 33 is set to move the entire support and control the entire support to rotate, thereby completing multi-position and multi-angle exploration of the coil.

[0046] Optionally, the horizontal adjustment component 7 includes a base 10, a support 11 fixedly connected to the upper surface of the base 10, a movable shaft 12 rotatably connected to the support 11, a positioning rod 13 movably inserted into the movable shaft 12, and the positioning rod 13 passes through the movable shaft 12, an end toothed disc 14 and a positioning disc 15 respectively fixedly connected to both ends of the positioning rod 13, a tooth groove 16 provided on one side of the support 11, and a positioning spring 17 movably sleeved on the outside of the positioning rod 13, and the two ends of the positioning spring 17 are respectively connected to the positioning disc 15 and the support 11;

[0047] The bottom of the lower support rod 6 is mounted on the movable shaft 12;

[0048] The end toothed disc 14 and the toothed groove 16 are meshed with each other;

[0049] Among them, pressing the positioning plate 15 can make the positioning rod 13 move in the movable shaft 12, and control the end tooth plate 14 to disengage from the tooth groove 16. When in use, the positioning plates 15 on the two horizontal adjustment components 7 can be adjusted at the same time, so that the positioning plates 15 can drive the positioning rod 13 to move in the movable shaft 12 and compress the positioning spring 17. During the movement of the positioning rod 13, the end tooth plate 14 can be disengaged from the tooth groove 16. At this time, the lower support rod 6 can be rotated at a fixed point, so that the lower support rod 6 is adjusted to a vertical state, thereby adjusting the horizontal state of the coil on the mezzanine support frame 1, thereby increasing the accuracy of subsequent coil angle adjustment.

[0050] Optionally, the fixing assembly 3 includes a fixing platform 18, a fixing groove 19 opened in the middle of the fixing platform 18 and used to place the circular support frame 1, a fixing block 20 arranged in the fixing groove 19, and a fixing screw 21 screwed on the fixing platform 18 and rotatably connected to the fixing block 20;

[0051] Among them, rotating the fixing screw 21 can control the fixing block 20 to move in the fixing groove 19 and approach the arched support frame 1. When in use, the arched support frame 1 can be placed in the two fixing grooves 19, and then the two fixing screws 21 are rotated to make the two fixing blocks 20 move in the fixing grooves 19 and approach the arched support frame 1, thereby completing the installation and fixation of the arched support frame 1. At the same time, the arched support frame 1 is easy to disassemble and assemble, making it convenient to carry the device.

[0052] Optionally, the angle adjustment assembly 4 includes a first damping shaft 22, an adjustment seat 23 rotatably connected to the top of the upper support rod 5 through the first damping shaft 22, an angle plate 24 fixedly connected to one end of the first damping shaft 22, and an identification block 25 fixedly connected to the outer wall of the adjustment seat 23;

[0053] The identification block 25 and the angle disc 24 are arranged on the same side of the adjustment seat 23, and the identification block 25 is arranged directly above the angle disc 24;

[0054] The adjustment seat 23 is fixedly connected to the bottom of the fixed platform 18. When in use, the first damping shaft 22 is provided to provide damping for the rotation between the adjustment seat 23 and the upper support rod 5, so that the mezzanine support frame 1 can be kept in a stable state before the angle adjustment is performed. After ensuring that the coil is level before use, the mezzanine support frame 1 can be rotated through the first damping shaft 22 to adjust the mezzanine support frame 1 and change the angle of the coil. With the cooperation of the identification block 25 and the angle disk 24, the accuracy of the coil angle adjustment can be guaranteed, and the coil angle can be changed conveniently according to the detection position, thereby ensuring the accuracy and quality of the transient electromagnetic instrument results.

[0055] Optionally, the horizontal control assembly 33 includes a positioning plate 34 disposed below the two horizontal adjustment assemblies 7, a positioning slot 35 provided in the positioning plate 34, a second damping shaft 36 installed at the bottom of the positioning plate 34, a moving plate 37 rotatably connected to the bottom of the positioning plate 34 through the second damping shaft 36, and a plurality of universal wheels installed at the bottom of the moving plate 37;

[0056] The two bases 10 and the support 11 are slidably installed in the positioning groove 35;

[0057] A scale groove 38 is provided on the upper surface of the movable disk 37, and an indicator rod 39 is fixedly connected to the side wall of the positioning plate 34. When in use, the entire bracket can be moved by means of a number of universal wheels, which is convenient for surveying different positions in the tunnel and can ensure the stability of the antenna coil during survey. At the same time, the second damping shaft 36 is provided to facilitate the rotation and positioning of the positioning plate 34 during movement, which is convenient for surveying at different angles in the tunnel. With the cooperation of the indicator rod 39 and the scale groove 38, the angle change during the observation and movement process can be effectively recorded, which is convenient for recording information at different angles and directions. The positioning groove 35 is provided to facilitate the movement of the base 10 and the support 11 in the positioning plate 34, so as not to affect the two fixing components 3 to fix the mezzanine support frames 1 of different sizes. After the mezzanine support frame 1 is fixed, the two bases 10 and the support 11 are fixed in the positioning groove 35 and do not move, thereby ensuring the stability of the antenna coil on the mezzanine support frame 1 during use.

[0058] Optionally, one of the upper support rods 5 is hinged to the lower support rod 6 at its bottom, a slide groove 26 is provided inside the other upper support rod 5, and a positioning screw 27 is spirally installed at the slide groove 26 of the other upper support rod 5;

[0059] The lower support rod 6 arranged at the bottom of the other upper support rod 5 has its upper end extended into the slide groove 26, and the end of the positioning screw 27 close to the slide groove 26 conflicts with the outer wall of one of the lower support rods 6. When in use, the positioning screw 27 can be rotated to release the conflict with one of the lower support rods 6, thereby facilitating the movement of the lower support rod 6 in the slide groove 26, and the other upper support rod 5 will rotate around the lower support rod 6 at its bottom, thereby further leveling the circular support frame 1 and increasing the horizontality of the coil before adjustment.

[0060] Optionally, the outer walls of the two loop-shaped support frame 1 are fixedly connected with a plurality of mounting blocks 28, and the plurality of mounting blocks 28 are rotatably connected with positioning blocks 29;

[0061] Among them, rotating multiple positioning blocks 29 can make them fit with the upper surface of the mezzanine support frame 1. After placing the electromagnetic instrument coil in the placement groove 2, the multiple limit blocks can be rotated to move it above the placement groove 2, thereby limiting the coil to ensure the stability of the transient electromagnetic instrument during detection, and preventing the coil from detaching from the mezzanine support frame 1 when the coil angle is adjusted later.

[0062] Optionally, a guide groove 30 is provided inside the guide column 8, and the guide rod 9 is slidably inserted into the guide groove 30. When in use, the guide groove 30 is provided to facilitate the movement of the guide rod 9 in the guide column 8, so that the distance between the two upper support rods 5 can be adjusted, and the distance between the two fixed components 3 can be conveniently changed. The mezzanine support frame 1 adapted to coils of different sizes can be fixed, which facilitates the use of transient electromagnetic instruments of different models and increases the practicality of the device.

[0063] Optionally, a horizontal sensor 31 is fixedly installed on the lower surface of the guide column 8, and a buzzer 32 is fixedly installed on the front surface of the guide column 8. The horizontal sensor 31 and the buzzer 32 are both electrically connected to the external controller. When in use, the horizontal sensor 31 can detect the vertical state of the two upper support rods 5 and transmit the data to the controller. The controller can control the buzzer 32 to sound an alarm to remind the user of the vertical state of the two upper support rods 5. After adjusting the horizontal angle of the coil, the buzzer 32 will stop ringing, thereby ensuring the horizontal adjustment effect of the coil.

[0064] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A multi-degree-of-freedom auxiliary bracket for a transient electromagnetic instrument, characterized in that: The invention comprises a circular support frame (1) and a placement groove (2) provided on the upper surface of the circular support frame (1) and used for placing the transient electromagnetic instrument coil, a fixing component (3) symmetrically arranged on the lower surface of the circular support frame (1), an angle adjustment component (4) respectively fixedly connected to the bottom of two fixing components (3), an upper support rod (5) respectively connected to the bottom of two angle adjustment components (4), a lower support rod (6) arranged on the two upper support rods (5), a horizontal adjustment component (7) respectively connected to the bottom of two lower support rods (6), and a horizontal control component (33) arranged below the two horizontal adjustment components (7); The two upper support rods (5) are respectively fixedly connected to the opposite sides thereof with a guide column (8) and a guide rod (9); The fixing assembly (3) cooperates with the angle adjustment assembly (4) to complete the connection between the two upper support rods (5) and the circular support frame (1), and can fine-tune the angle of the circular support frame (1); The horizontal adjustment component (7) is suitable for rotating the two lower support rods (6) at a fixed point to adjust the relative angle between the two lower support rods (6).

2. A transient electromagnetic instrument multi-degree-of-freedom auxiliary bracket according to claim 1, characterized in that: The horizontal adjustment component (7) comprises a base (10), a support (11) fixedly connected to the upper surface of the base (10), a movable shaft (12) rotatably connected to the support (11), a positioning rod (13) movably inserted into the movable shaft (12), and the positioning rod (13) passes through the movable shaft (12), an end toothed disc (14) and a positioning disc (15) respectively fixedly connected to both ends of the positioning rod (13), a tooth groove (16) provided on one side of the support (11), and a positioning spring (17) movably sleeved on the outside of the positioning rod (13), and the two ends of the positioning spring (17) are respectively connected to the positioning disc (15) and the support (11); The bottom of the lower support rod (6) is mounted on the movable rotating shaft (12); The end toothed disc (14) and the toothed groove (16) are meshed with each other; Wherein, pressing the positioning plate (15) can make the positioning rod (13) move within the movable rotating shaft (12) and control the end tooth plate (14) to disengage from the tooth groove (16).

3. A transient electromagnetic instrument multi-degree-of-freedom auxiliary bracket according to claim 1, characterized in that: The fixing assembly (3) comprises a fixing platform (18), a fixing groove (19) provided in the middle of the fixing platform (18) and used for placing the circular support frame (1), a fixing block (20) arranged in the fixing groove (19), and a fixing screw (21) screwedly mounted on the fixing platform (18) and rotatably connected to the fixing block (20); The fixing screw (21) is rotated to control the fixing block (20) to move in the fixing groove (19) and approach the circular support frame (1).

4. A transient electromagnetic instrument multi-degree-of-freedom auxiliary bracket according to claim 3, characterized in that: The angle adjustment assembly (4) comprises a first damping shaft (22), an adjustment seat (23) rotatably connected to the top end of the upper support rod (5) via the first damping shaft (22), an angle plate (24) fixedly connected to one end of the first damping shaft (22), and an identification block (25) fixedly connected to the outer wall of the adjustment seat (23); The identification block (25) and the angle disc (24) are arranged on the same side of the adjustment seat (23), and the identification block (25) is arranged directly above the angle disc (24); The adjustment seat (23) is fixedly connected to the bottom of the fixing platform (18).

5. The multi-degree-of-freedom auxiliary bracket for transient electromagnetic instrument according to claim 2, characterized in that: The horizontal control assembly (33) comprises a positioning plate (34) arranged below the two horizontal adjustment assemblies (7), a positioning groove (35) provided in the positioning plate (34), a second damping shaft (36) installed at the bottom of the positioning plate (34), a moving plate (37) rotatably connected to the bottom of the positioning plate (34) via the second damping shaft (36), and a plurality of universal wheels installed at the bottom of the moving plate (37); The two bases (10) and the support (11) are slidably mounted in the positioning groove (35); The upper surface of the movable plate (37) is provided with a scale groove (38), and the side wall of the positioning plate (34) is fixedly connected with an indicating rod (39).

6. The multi-degree-of-freedom auxiliary bracket for transient electromagnetic instrument according to claim 1, characterized in that: One of the upper supporting rods (5) is hinged to the lower supporting rod (6) at its bottom, a slide groove (26) is provided inside the other upper supporting rod (5), and a positioning screw (27) is spirally installed at the slide groove (26) of the other upper supporting rod (5); The lower support rod (6) arranged at the bottom of the other upper support rod (5) has its upper end extending into the slide groove (26), and one end of the positioning screw rod (27) close to the slide groove (26) abuts against the outer wall of one of the lower support rods (6).

7. The multi-degree-of-freedom auxiliary bracket for transient electromagnetic instrument according to claim 1, characterized in that: The outer walls of the two loop-shaped support frame (1) are fixedly connected to a plurality of mounting blocks (28), and the plurality of mounting blocks (28) are rotatably connected to positioning blocks (29); The plurality of positioning blocks (29) can be rotated to fit the upper surface of the circular support frame (1).

8. The multi-degree-of-freedom auxiliary bracket for transient electromagnetic instrument according to claim 1, characterized in that: A guide groove (30) is provided inside the guide column (8), and the guide rod (9) is fitted and slidably inserted into the guide groove (30).

9. The multi-degree-of-freedom auxiliary bracket for transient electromagnetic instrument according to claim 1, characterized in that: A level sensor (31) is fixedly mounted on the lower surface of the guide column (8), and a buzzer (32) is fixedly mounted on the front surface of the guide column (8); both the level sensor (31) and the buzzer (32) are electrically connected to an external controller.

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