Mobile automatic leveling directional device for advanced detection under mine and method of using same

Abstract

The application discloses a mobile automatic leveling directional device for advanced detection under a mine and a use method thereof, and discloses a device which can accurately direct and prevent detection results from being deviated by leveling a supporting leveling plate through a leveling smooth cylinder and a leveling rod, and adjusting the pitch angle and the azimuth angle of a launch line frame by referring to a rotating pointing strip and a scale on a lifting supporting buckle. The device is characterized in that the device comprises a directional assembly and a mobile leveling assembly, the directional assembly is arranged on the mobile leveling assembly, the mobile leveling assembly is composed of a bearing plate, a caterpillar type moving mechanism, a leveling rod, a tension screw knob and a leveling smooth cylinder, the caterpillar type moving mechanism is arranged at four corners of the bearing plate, the leveling smooth cylinder is arranged on the bearing plate, an acute angle between the leveling smooth cylinder and the bearing plate extends towards the middle part of the bearing plate in an oblique direction, the leveling smooth cylinder has three, the three leveling smooth cylinders are equidistantly distributed along the circumference of the bearing plate, and the leveling rod is slidably arranged in the leveling smooth cylinder.

Description

TECHNICAL FIELD

[0001] The present application relates to a mobile automatic leveling directional device for coal mine underground advanced detection and its use method, belongs to the technical field of underground exploration, and particularly relates to a device used in underground advanced detection, which can be leveled and accurately directed when adjusting the pitch angle and azimuth angle of a transmission line frame, thereby improving detection accuracy. BACKGROUND

[0002] The geophysical method (referred to as geophysical prospecting) advanced detection of mine tunneling working face is a geophysical exploration work with special working environment, high technical difficulty, high work requirement and relation to mine safety. The transient electromagnetic method is one of important physical detection methods in coal mine. The mine transient electromagnetic instrument is usually used to detect water-bearing and water-conducting geology, such as karst cave water-conducting channel, coal mining area, irregular water body, etc. in the coal mine with gas and coal dust explosion hazard environment. A pulsed primary electromagnetic field is established in the surrounding rock of the roadway by the transmission line frame arranged in the roadway. The secondary electromagnetic field generated by the underground eddy current induced by the pulsed electromagnetic field is observed by the receiving antenna. The spatial and temporal distribution of the secondary field is analyzed to understand the related geological problems.

[0003] When doing underground transient electromagnetic advanced detection, the head area is very small, and the fan-shaped detection technology is often used. In the actual work process, the pitch angle and azimuth angle of the transmission line frame can be adjusted to detect the surrounding rock changes in the direction of the roadway roof, bedding and floor from different directions for each measurement point. However, the ground surface of the roadway is uneven, and the pitch angle and azimuth angle of the transmission line frame are adjusted by manual rotation, so that the adjustment angle is not accurate enough, resulting in deviation of the detection results.

[0004] Publication No. CN105824047A discloses a transient electromagnetic advanced detection monitoring device and method, which includes a portable transmitting and receiving unit, a data acquisition station, an optical fiber communication transmission platform and a ground control center. During measurement, the ground surface of the roadway is uneven, and the pitch angle and azimuth angle of the transmission line frame are adjusted by manual rotation, so that the adjustment angle is not accurate enough, resulting in deviation of the detection results.

[0005] Publication No. CN103472487A discloses a roadway tunneling working face transient electromagnetic multi-component advanced detection method and device, which includes three detection line frames. Each detection line frame is arranged at a certain angle. The detection line frames arranged at different angles are used to collect transient electromagnetic data in three directions. During measurement, the ground surface of the roadway is uneven, and the pitch angle and azimuth angle of the transmission line frame are adjusted by manual rotation, so that the adjustment angle is not accurate enough, resulting in deviation of the detection results. SUMMARY

[0006] In order to improve the above situation, the application provides a mobile automatic leveling directional device for advanced detection in a mine and a use method thereof, which can accurately direct and prevent detection results from being deviated by leveling a support leveling plate through a leveling smooth cylinder cooperating with a leveling rod and adjusting the pitch angle and azimuth angle of a launch line frame by referring to a rotating pointing strip and a scale on a lifting support buckle.

[0007] The application is achieved as follows: the mobile automatic leveling directional device for advanced detection in a mine comprises a directional assembly and a mobile leveling assembly,

[0008] characterized in that the directional assembly is arranged on the mobile leveling assembly,

[0009] the mobile leveling assembly comprises a bearing plate, a tracked mobile mechanism, a leveling rod, a tension screw knob and a leveling smooth cylinder,

[0010] the tracked mobile mechanism is arranged at the four corners of the bearing plate,

[0011] the leveling smooth cylinder is arranged on the bearing plate,

[0012] Preferably, the leveling smooth cylinder and the bearing plate form an acute angle and extend obliquely upward toward the middle part of the bearing plate, the leveling smooth cylinder has three, and the three leveling smooth cylinders are distributed equidistantly along the circumference of the bearing plate,

[0013] the leveling rod is slidably arranged in the leveling smooth cylinder, and the leveling rod and the leveling smooth cylinder are fixed through the tension screw knob,

[0014] the directional assembly comprises a lifting support buckle, a lifting support plate, a support leveling plate, a rotating pointing strip, a compass, a rotating outer bearing, an annular reinforcing plate, a horizontal bubble instrument, a fixed mounting cylinder, a rotating inner bearing, a connecting block, a coil placing groove and a connecting column,

[0015] the support leveling plate is arranged on the leveling rod,

[0016] Preferably, the support leveling plate and the leveling rod form an acute angle,

[0017] the horizontal bubble instrument is arranged at the edge of the support leveling plate, and the compass is arranged at the corner of the support leveling plate,

[0018] the fixed mounting cylinder is arranged at the middle part of the support leveling plate,

[0019] the rotating outer bearing sleeve is arranged on the fixed mounting cylinder, and a plurality of rotating pointing strips are equidistantly arranged on the circumference of the rotating outer bearing,

[0020] Preferably, the rotating direction indicator strip has 72, the rotating direction indicator strip is marked with azimuth scale, and the azimuth scale of the plurality of rotating direction indicator strips is increased by 5 degrees from 0 degrees to 180 degrees on both sides respectively,

[0021] The annular reinforcing plate is arranged on the plurality of rotating direction indicator strips, and the annular reinforcing plate is provided with a fixing hole,

[0022] Preferably, the annular reinforcing plate is located at two-thirds of the rotating direction indicator strip from the end connected with the rotating outer bearing to the other end,

[0023] The rotating inner bearing is arranged in the fixed mounting cylinder,

[0024] The connecting column is arranged in the rotating inner bearing, one end of the connecting column is connected with the inner wall of the rotating inner bearing, and the other end of the connecting column extends outward through the rotating inner bearing,

[0025] The connecting block is arranged on the other end of the connecting column, one side of the connecting block is connected with the connecting column,

[0026] The other side of the connecting block is provided with a coil placing groove,

[0027] Preferably, the coil placing groove is a through groove structure, and the cross section of the coil placing groove is rectangular from one side to one-half, and is a quarter of a circle from one-half to the other side,

[0028] The lifting support plate is arranged on the supporting leveling plate, one end of the lifting support plate is connected with the supporting leveling plate,

[0029] Preferably, the cross section of the lifting support plate is an arc structure, the lifting support plate is perpendicular to the supporting leveling plate or is an acute angle included angle and extends obliquely upward away from the supporting leveling plate, the lifting support plate has four, and the four lifting support plates are distributed equidistantly around the annular reinforcing plate on the edge of the supporting leveling plate,

[0030] The lifting support plate is provided with a plurality of lifting support buckles,

[0031] Preferably, one side of the lifting support buckle is connected with the lifting support plate, and the other side extends obliquely upward after being bent in an arc shape,

[0032] Preferably, the lifting support buckle has 15, and the lifting support buckle is marked with a pitch angle scale,

[0033] The application also relates to a use method of the mobile automatic leveling directional device for underground mine advanced detection.

[0034] 1) The tracked mobile mechanism drives the mobile automatic leveling directional device for underground mine advanced detection to move in the roadway, and each measuring point is detected point by point in a clockwise direction;

[0035] 2) when reaching the measuring point position, unscrew the tension screw knob, and adjust the extension length of the leveling lever in the leveling cylinder to level the supporting leveling plate;

[0036] 3) rotate the annular reinforcing plate, so that the outer bearing rotates to drive the rotating direction bar to rotate, and then the rotating direction bar with 0 scale and the magnetic needle of the compass are aligned, the orientation reference is determined, and the rotating direction bar is fixed through the fixing bolt passing through the fixing hole on the annular reinforcing plate;

[0037] 4) the bottom of the rectangular emission line frame is clamped into the coil slot on the connecting block, and the emission line frame is rotated to adjust the azimuth angle according to the azimuth angle scale on the rotating direction bar for detection;

[0038] 5) the emission line frame is clamped into different lifting support buckles on the lifting support plate to adjust the pitch angle for detection, and one point is measured, then the next point is changed, and the continuity of the record is ensured, and the detection direction or order is not randomly changed in the middle;

[0039] Preferably, the lifting support buckle at the lowest point makes the included angle between the emission line frame and the supporting leveling plate be 15 degrees, and the included angles between the emission line frame and the supporting leveling plate of the remaining lifting support buckles are increased by 5 degrees in sequence from bottom to top.

[0040] Beneficial effects.

[0041] I. It can be leveled, and it can be oriented when adjusting the pitch angle and azimuth angle of the emission line frame, so as to prevent the detection result from being deviated.

[0042] II. Simple structure and convenient to use.

[0043] III. Low cost and easy to promote. DETAILED DESCRIPTION

[0044] Figure 1 The application is a three-dimensional structure diagram of a mobile automatic leveling and orienting device for advanced detection in a mine.

[0045] Figure 2 The application is a three-dimensional structure diagram of a mobile automatic leveling and orienting device for advanced detection in a mine.

[0046] Figure 3 The application is a three-dimensional structure diagram of a mobile automatic leveling and orienting device for advanced detection in a mine.

[0047] In the drawings

[0048] Wherein is: lifting support buckle (1), lifting support plate (2), support leveling plate (3), bearing plate (4), rotating pointing strip (5), compass (6), tracked mobile mechanism (7), rotating outer bearing (8), annular reinforcing plate (9), horizontal bubble instrument (10), fixed mounting cylinder (11), rotating inner bearing (12), connecting block (13), coil placing groove (14), leveling rod (15), tension screw knob (16), leveling smooth cylinder (17), connecting column (18). DETAILED DESCRIPTION

[0049] The mobile automatic leveling directional device for advanced detection in a mine comprises a directional assembly and a mobile leveling assembly,

[0050] The directional assembly is arranged on the mobile leveling assembly,

[0051] The mobile leveling assembly comprises a bearing plate (4), a tracked mobile mechanism (7), a leveling rod (15), a tension screw knob (16) and a leveling smooth cylinder (17),

[0052] The tracked mobile mechanism (7) is arranged at the four corners of the bearing plate (4),

[0053] The leveling smooth cylinder (17) is arranged on the bearing plate (4),

[0054] Preferably, the leveling smooth cylinder (17) and the bearing plate (4) form an acute angle, and the leveling smooth cylinder (17) extends upward toward the middle of the bearing plate (4), and the leveling smooth cylinder (17) has three, and the three leveling smooth cylinders (17) are distributed equidistantly along the circumference of the bearing plate (4),

[0055] The leveling rod (15) is slidably arranged in the leveling smooth cylinder (17), and the leveling rod (15) and the leveling smooth cylinder (17) are fixed through the tension screw knob (16),

[0056] The directional assembly comprises a lifting support buckle (1), a lifting support plate (2), a support leveling plate (3), a rotating pointing strip (5), a compass (6), a rotating outer bearing (8), an annular reinforcing plate (9), a horizontal bubble instrument (10), a fixed mounting cylinder (11), a rotating inner bearing (12), a connecting block (13), a coil placing groove (14) and a connecting column (18),

[0057] The support leveling plate (3) is arranged on the leveling rod (15),

[0058] Preferably, the support leveling plate (3) and the leveling rod (15) form an acute angle,

[0059] The horizontal bubble instrument (10) is arranged at the edge of the support leveling plate (3), and the compass (6) is arranged at the corner of the support leveling plate (3),

[0060] The fixed mounting cylinder (11) is arranged in the middle of the support leveling plate (3),

[0061] The rotating outer bearing (8) is arranged on the fixed mounting cylinder (11), and a plurality of rotating direction bars (5) are arranged on the rotating outer bearing (8) at equal intervals in the circumferential direction,

[0062] Preferably, the rotating direction bars (5) are 72, and the rotating direction bars (5) are marked with azimuth angle scales, and the azimuth angle scales of the plurality of rotating direction bars (5) are increased by 5 degrees from 0 degrees to 180 degrees on both sides,

[0063] The annular reinforcing plate (9) is arranged on the plurality of rotating direction bars (5), and the annular reinforcing plate (9) is provided with a fixing hole,

[0064] Preferably, the annular reinforcing plate (9) is located at two-thirds of the rotating direction bar (5) from the end connected to the rotating outer bearing (8) to the other end,

[0065] The rotating inner bearing (12) is arranged in the fixed mounting cylinder (11),

[0066] The connecting column (18) is arranged in the rotating inner bearing (12), one end of the connecting column (18) is connected to the inner wall of the rotating inner bearing (12), and the other end of the connecting column (18) extends outward through the rotating inner bearing (12),

[0067] The connecting block (13) is arranged on the other end of the connecting column (18), and one side of the connecting block (13) is connected to the connecting column (18),

[0068] A coil placing groove (14) is formed on the other side of the connecting block (13),

[0069] Preferably, the coil placing groove (14) is a through groove structure, and the cross section of the coil placing groove (14) is rectangular from one side to one-half, and is seven-fourths circular from one-half to the other side,

[0070] The lifting support plate (2) is arranged on the support leveling plate (3), and one end of the lifting support plate (2) is connected to the support leveling plate (3),

[0071] Preferably, the cross section of the lifting support plate (2) is an arc structure, the lifting support plate (2) is perpendicular to the support leveling plate (3) or forms an acute angle and extends obliquely upward away from the support leveling plate (3), and the lifting support plate (2) has four, and the four lifting support plates (2) are arranged at equal intervals around the annular reinforcing plate (9) on the edge of the support leveling plate (3),

[0072] A plurality of lifting support buckles (1) are arranged on the lifting support plate (2),

[0073] Preferably, the lifting support buckle (1) is connected with the lifting support plate (2) on one side, and extends obliquely upward after being bent in an arc shape on the other side,

[0074] Preferably, the lifting support buckle (1) is 15 in number, and the lifting support buckle (1) is marked with a pitch angle scale;

[0075] Preferably, the lifting support plate (2) is of a wooden structure;

[0076] Preferably, the rotating direction bar (5), the annular reinforcing plate (9), the support leveling plate (3) and the bearing plate (4) are all of a wooden structure;

[0077] Preferably, the rotating outer bearing (8) is a ceramic bearing, and the rotating inner bearing (12) is a ceramic bearing;

[0078] The present application also relates to a use method of the mobile automatic leveling directional device for underground mine advanced detection, comprising the following steps:

[0079] 1) The crawler-type moving mechanism (7) drives the mobile automatic leveling directional device for underground mine advanced detection to move in the roadway, and each measuring point is detected point by point in a clockwise direction;

[0080] Preferably, the effective measuring points at the working face are not less than 8,

[0081] 2) When reaching the measuring point position, the loose screw knob (16) is unscrewed, the support leveling plate (3) is leveled by adjusting the extension length of the leveling rod (15) in the leveling smooth cylinder (17);

[0082] 3) The annular reinforcing plate (9) is actuated to rotate the rotating outer bearing (8) to drive the rotating direction bar (5) to rotate, so that the 0 scale rotating direction bar (5) is aligned with the magnetic needle of the compass (6), the orientation reference is determined, and the rotating direction bar (5) is fixed by the fixing bolt passing through the fixing hole on the annular reinforcing plate (9);

[0083] 4) The rectangular emission line frame bottom is clamped into the coil placing groove (14) on the connecting block (13), the emission line frame is rotated according to the azimuth scale on the rotating direction bar (5) to adjust the azimuth angle for detection;

[0084] 5) The emission line frame is clamped into different lifting support buckles (1) on the lifting support plate (2) to adjust the pitch angle for detection, one point is measured, then the next point is changed, and the points are measured in sequence to ensure the continuity of the record, and the detection direction or order is not arbitrarily changed in the middle;

[0085] Preferably, the lowest lifting support buckle (1) makes the angle between the launch frame and the support leveling plate (3) 15 degrees, and the remaining lifting support buckles (1) make the angle between the launch frame and the support leveling plate (3) increase by 5 degrees in order from bottom to top.

[0086] Preferably, when a wide range of detection is performed, the distance between the measuring points, that is, the moving step distance of the line frame in the transverse direction, should be between 5-10m, and the measuring point spacing can be selected as 15m. Generally, the measuring point spacing is less than 15m.

[0087] The leveling smooth cylinder (17) and the bearing plate (4) are connected at an acute angle and extend obliquely upward toward the middle of the bearing plate (4). The leveling smooth cylinder (17) has three, which are distributed equidistantly along the circumference of the bearing plate (4). According to the principle of three-point surface, the bearing plate (4) can be leveled conveniently, which is beneficial to accurate orientation.

[0088] The rotating direction bar (5) has 72, and the azimuth scale is marked on the rotating direction bar (5). The azimuth scale of the plurality of rotating direction bars (5) is designed to increase by 5 degrees from 0 degrees to 180 degrees on both sides in multiples, which can facilitate the staff to adjust the azimuth according to the scale on the rotating direction bar (5) after determining the azimuth reference, and then accurately orient.

[0089] The annular reinforcing plate (9) is located at two-thirds of the end connected to the rotating outer bearing (8) of the rotating direction bar (5) toward the other end, which can reinforce and stabilize the plurality of rotating direction bars and prevent them from breaking and damaging.

[0090] The cross section of the coil placing groove (14) is designed to be rectangular from one side to one-half and four-sevenths circular from one-half to the other side, which can better hold the launch frame and prevent it from falling out of the coil placing groove (14) during rotation and orientation, affecting the detection process.

[0091] The cross section of the lifting support plate (2) is arc-shaped, and the lifting support plate (2) and the support leveling plate (3) are perpendicular or extend obliquely upward away from the support leveling plate (3) at an acute angle, which can avoid the launch frame and better adapt to the adjustment of various pitch angles of the launch frame. The lifting support buckle (1) on the lifting support plate (2) is used to fix and detect the launch frame.

[0092] One side of the lifting support buckle (1) is connected to the lifting support plate (2), and the other side is designed to be arc-shaped and extend obliquely upward after bending, which can fix the launch frame and prevent it from falling out of the lifting support buckle (1).

[0093] The leveling lever (15) matches the leveling smooth cylinder (17), can level the launch line frame, and is beneficial to accurate orientation;

[0094] The rotating direction strip (5) matches the lifting support buckle (1), can be oriented according to the scale on it when adjusting the pitch angle and azimuth angle of the launch line frame, and prevents the detection result from being deviated.

[0095] The leveling lever (15) matches the leveling smooth cylinder (17), can level the launch line frame, and is beneficial to accurate orientation;

[0096] It should be noted that, unless otherwise explicitly specified and limited, the terms "placed", "connected", "linked" should be understood broadly, for example, can be a folding edge connection, rivet connection, pin connection, bonding connection and welding connection and other fixed connection modes, can also be a threaded connection, buckle connection and hinge connection and other detachable connection mode, or integrated connection, can also be electrical connection, or directly connected, or indirectly connected through an intermediate medium, can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0097] The above embodiments are the preferred embodiments of the present application, and the applicant does not increase other embodiments in order to save space, but this does not limit the scope of the present application. Any person skilled in the art can make some improvements without departing from the scope of the present application, that is, any equivalent improvement made according to the present application should be covered by the scope of the present application.

Claims

1. A method of using a mobile automatic levelling directional device for advanced detection in mines, characterised by The utility model provides a mobile automatic leveling directional device for advanced detection under mine, including directional component and mobile leveling component, directional component places on mobile leveling component, mobile leveling component is by bearing plate, crawler -type mobile mechanism, leveling rod, tight screw knob and leveling smooth cylinder, bearing plate four corners corresponded to have crawler -type mobile mechanism, leveling smooth cylinder places on bearing plate, leveling rod can slip in the leveling smooth cylinder, leveling rod and leveling smooth cylinder between through tight screw knob are fixed, directional component is by lifting support buckle, lifting support board, support leveling board, rotation direction bar, compass, rotation outer bearing, ring reinforcing plate, level bubble instrument, fixed installation cylinder, rotation inner bearing, connecting block, coil placing groove and connecting column composition, support leveling board places on leveling rod, support leveling board and leveling rod between acute angle angle, level bubble instrument places at the edge of support leveling board, compass places at the edge angle of support leveling board, fixed installation cylinder places in the middle part of support leveling board, rotation outer bearing sleeve places on fixed installation cylinder, rotation outer bearing has a plurality of rotation direction bars on the circumference equidistance, ring reinforcing plate places on a plurality of rotation direction bars, ring reinforcing plate is opened and has fixed hole, rotation inner bearing is placed in fixed installation cylinder, connecting column is placed in rotation inner bearing, one end of connecting column and rotation inner bearing inner wall are connected, the other end passes through rotation inner bearing and extends outward, connecting block is placed on the other end of connecting column, one side of connecting block and connecting column are connected, coil placing groove is opened on the other side of connecting block, lifting support board places on support leveling board, one end of lifting support board and support leveling board are connected, lifting support board is provided with a plurality of lifting support buckles on it. 1) control crawler -type mobile mechanism to drive mobile automatic leveling directional device for advanced detection under mine to move in the roadway, detect each measuring point in turn in the clockwise direction; 2) when reaching the measuring point position, loosen the tight screw knob, adjust the extension length of the leveling rod in the leveling smooth cylinder, and level the support leveling plate; 3) turn the ring reinforcing plate to make the rotation outer bearing rotate to drive the rotation direction bar to rotate, and then make the 0 scale rotation direction bar and the magnetic needle of the compass align, determine the orientation reference, and fix the rotation direction bar through the fixed bolt passing through the fixed hole on the ring reinforcing plate; 4) clamp the rectangular emission line frame bottom into the coil placing groove on the connecting block, rotate the emission line frame to adjust the azimuth angle according to the azimuth angle scale on the rotation direction bar for detection; 5) clamp the emission line frame into different lifting support buckles on the lifting support board to adjust the pitch angle for detection, measure one point, change to the next point, measure in turn, ensure the continuity of the record, and do not change the detection direction or order at will; the lifting support buckle at the lowest point makes the included angle between the emission line frame and the support leveling plate be 15 degrees, and the rest lifting support buckles make the included angle between the emission line frame and the support leveling plate increase by 5 degrees in turn from bottom to top.

2. The method of using a mobile automatic leveling directional device for advanced detection in a mine according to claim 1, characterized in that The acute angle between the leveling smooth cylinder and the bearing plate extends upward toward the middle of the bearing plate, the leveling smooth cylinder has three, three leveling smooth cylinders are equidistantly distributed along the circumference of the bearing plate, and the three-point surface principle can be used to facilitate leveling the bearing plate.

3. The method of using a mobile automatic leveling directional device for advanced detection in a mine according to claim 1, characterized in that The rotating direction strip has 72, the rotating direction strip is marked with an azimuth scale, the azimuth scale of the plurality of rotating direction strips is increased by 5 degrees from 0 degrees to 180 degrees on both sides, and the azimuth can be adjusted according to the scale on the rotating direction strip after the azimuth reference is determined.

4. The method of using a mobile automatic leveling directional device for advanced detection in a mine according to claim 1, characterized in that The annular reinforcing plate is located at two-thirds of the rotating direction strip from the end connected to the rotating outer bearing to the other end, which can reinforce and stabilize the plurality of rotating direction strips and prevent them from breaking and damaging.

5. The method of using a mobile automatic leveling directional device for advanced detection in a mine according to claim 1, characterized in that The coil placing groove is a through groove structure, the cross section of the coil placing groove is rectangular from one side to one-half, and is seven-fourths circular from one-half to the other side, which can better hold the launch frame and prevent it from falling out of the coil placing groove during rotation and orientation.

6. The method of using a mobile automatic leveling directional device for advanced detection in a mine according to claim 1, characterized in that The lifting support plate has an arc-shaped cross section, the lifting support plate and the support leveling plate are perpendicular or have an acute angle and extend upward away from the support leveling plate, the lifting support plate has four, the four lifting support plates are equidistantly distributed around the annular reinforcing plate on the edge of the support leveling plate, the lifting support plate can be used to avoid the launch frame and better adapt to the adjustment of various pitch angles of the launch frame, and the lifting support buckle on the lifting support plate can be used to fix and hold the launch frame for detection.

7. The method of using a mobile automatic leveling directional device for advanced detection in a mine according to claim 6, characterized in that The lifting support buckle has 15, and the lifting support buckle is marked with a pitch angle scale.

8. The method of using a mobile automatic leveling directional device for advanced detection in a mine according to claim 1, characterized in that The leveling rod cooperates with the leveling smooth cylinder to level the launch frame, which is beneficial to accurate orientation.

9. The method of using a mobile automatic leveling directional device for advanced detection in a mine according to claim 3, characterized in that The rotating direction strip cooperates with the lifting support buckle to orient according to the scale on the rotating direction strip when adjusting the pitch angle and azimuth of the launch frame.

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