Automatic propelling device suitable for drilling television

Abstract

The invention belongs to the technical field of engineering investigation drilling detection, and particularly relates to an automatic propelling device suitable for a drilling television, the automatic propelling device comprises a drilling television host, a probe main body and a storage battery, and the bottom ends of the drilling television host and the storage battery are jointly and fixedly connected with an L-shaped frame. According to the drilling television, all parts of the drilling television are integrated through integrated design, the preparation procedure of drilling detection is effectively shortened, the convenience and efficiency of drilling detection can be improved, the probe of the drilling television further has the functions of automatically propelling and detecting drilling and preventing inclination, the protection capacity of the probe of the drilling television is improved, and the service life of the drilling television is prolonged. In addition, the borehole television can feed back information in time when encountering severe geological structures through the feedback mechanism, and the probe main body is controlled by the manual control panel to improve the shooting definition of detection pictures of the severe geological structures, so that the use reliability of the borehole television is improved, and the service life of the borehole television is prolonged. And thus, the drilling geological exploration accuracy of the drilling television is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of engineering survey and drilling detection, and in particular relates to an automatic propulsion device suitable for a drilling television. Background Art

[0002] Borehole television is a device used to detect the condition of borehole walls. It uses a probe that goes deep into the borehole, uses a high-definition camera to photograph the borehole wall, and transmits the image of the borehole wall to the ground display device in real time. In the field of geophysical exploration, borehole television plays an important role. It can intuitively present the structure, texture and geological anomalies of underground rock strata. For example, it can clearly display faults, local collapses, medium and large cracks, and harsh geological structures such as karst caves, providing an accurate basis for geophysical interpretation. In mineral exploration, it helps determine the location and shape of the ore body. In engineering geological surveys, it can evaluate the stability of the foundation and potential geological risks. At the same time, combined with other geophysical methods, it can improve the accuracy and reliability of geophysical exploration results, provide more comprehensive geological information for engineering design and construction, and ensure the safe and smooth progress of the project.

[0003] At present, when a borehole TV is used for borehole detection, a tripod needs to be arranged above the borehole first, and then the borehole TV host, the probe body and the cable-winding pay-off device need to be moved, and the two ends of the cable of the wiring device need to be connected to the borehole TV host and the probe body respectively, and then the cable is arranged on the guide wheel on the top of the tripod, and finally the gravity of the probe body is used to lower the probe for detection. After the detection is completed, the corresponding parts of the borehole TV need to be disassembled, which makes the process of borehole TV detection of drilling holes more cumbersome, affecting the convenience and efficiency of borehole TV detection of drilling holes; In addition, when the probe body is lowered, the swing of the cable can easily cause the probe body to swing, which in turn causes the probe body to swing and hit the inner wall of the borehole, and even damage the drilling probe, affecting the reliability and life of the drilling TV. Moreover, during the lowering process of the probe body, when encountering severe geological structures such as faults, local collapses, medium-to-large cracks, and karst caves, information cannot be fed back in a timely manner, causing the probe body to easily and quickly pass through the hole wall area located in these geological structures. At the same time, these geological structures cannot be clearly detected, affecting the accuracy of the borehole television for borehole geological detection.

[0004] Therefore, we propose an automatic propulsion device suitable for drilling television to solve the above problems. Summary of the invention

[0005] The object of the present invention is to provide an automatic propulsion device suitable for drilling television in view of the above problems.

[0006] To achieve the above object, the present invention adopts the following technical solutions: an automatic propulsion device suitable for a drilling TV, comprising a drilling TV host, a probe body and a battery, wherein the bottom ends of the drilling TV host and the battery are fixedly connected to an L-shaped frame, the L-shaped frame is fixedly connected to a mobile frame, and the bottom end of the mobile frame is fixedly connected to two symmetrically distributed rollers and a positioning mechanism; The outer wall of the mobile frame and the L-shaped frame are commonly connected to a cable retracting mechanism, the outer wall of the L-shaped frame is fixedly connected to a PLC controller, and the input end of the PLC controller is electrically connected to a manual control panel; The outer wall of the probe body is fixedly sleeved with a connecting ring, the connecting ring and the outer wall of the probe body are jointly fixedly connected with a connecting cover, the connecting ring divides the connecting cover into an exhaust area and an intake area, and the top of the connecting cover is fixedly connected with a probe self-propulsion mechanism; The outer wall of the connection cover is evenly and fixedly connected with three feedback mechanisms.

[0007] In the above-mentioned automatic propulsion device suitable for drilling television, the positioning mechanism includes two threaded barrels, the lower surface of the movable frame is provided with two fixing through holes for fixing the threaded barrels, the inner wall of the threaded barrel is threadedly connected with a screw rod, the bottom end of the screw rod is provided with a conical inclined surface, the rod wall of the screw rod is fixedly sleeved with a chassis, and the outer wall of the chassis is fixedly connected with two symmetrically distributed handles.

[0008] In the above-mentioned automatic propulsion device suitable for drilling television, the cable retracting mechanism includes a first fixed tube fixedly connected to the outer wall of the mobile frame, the tube wall of the first fixed tube is connected to a hollow turntable through a rolling bearing, the side of the hollow turntable away from the first fixed tube is fixedly connected to a second fixed tube, the outer wall of the second fixed tube is connected to an L-shaped frame through a rolling bearing, the outer wall of the L-shaped frame is provided with a mounting hole matched with the rolling bearing, the inner wall of the second fixed tube is fixedly connected to a multi-channel conductive slip ring, the rotating part of the multi-channel conductive slip ring is electrically connected to a transmission cable, the fixed part of the multi-channel conductive slip ring is electrically connected to a data cable and a wire assembly, the data cable is electrically connected to the input end of the drilling television host, the wire assembly is electrically connected to the input end of the PLC controller, and the end of the transmission cable away from the multi-channel conductive slip ring passes through the hollow turntable and the fixed cover, and is electrically connected to the connection end of the probe body.

[0009] In the above-mentioned automatic propulsion device suitable for drilling television, the probe self-propulsion mechanism includes a brushless fan for propelling the probe body deep into the drill hole, the upper surface of the connecting cover is provided with a fixed through hole cooperating with the brushless fan, the top of the connecting cover is fixedly connected with a diverter cover, the inner wall of the diverter cover is fixedly connected with a plurality of air guide pipes, the jet end of the air guide pipe passes through the connecting cover and the connecting ring, and is connected with the exhaust area, the bottom end of the connecting cover is fixedly connected with a plurality of arc-shaped air pipes, the outer wall of the connecting cover located in the air inlet area is provided with two air inlets, and the inner wall of the air inlet is fixedly connected with a filter mesh.

[0010] In the above-mentioned automatic propulsion device suitable for drilling television, the feedback mechanism includes two telescopic rods fixedly connected to the outer wall of the connecting cover, the outer sides of the two telescopic rods are commonly fixedly connected to the fixed cover, the outer wall of the fixed cover is sealed and fixedly connected to a rubber cover, the outer wall of the rubber cover is fixedly connected to a spandex elastic cloth cover, the outer wall of the spandex elastic cloth cover is fixedly connected to the outer wall of the fixed cover, the outer walls of the spandex elastic cloth cover and the rubber cover are jointly provided with a plurality of connecting circular holes, and the hole walls of the connecting circular holes are fixedly connected to universal balls, the rod wall of the telescopic rod is movably sleeved with a reset spring, the two ends of the reset spring are respectively fixedly connected to the outer walls of the fixed cover and the connecting cover, an arc tube is provided inside the connecting cover, the two ends of the arc tube both penetrate the connecting cover, and the outer walls of the three fixed covers are fixedly connected with hoses, wherein the ends of the two hoses away from the fixed cover are respectively fixedly connected to the two side ends of the arc tube, and the end of the other hose away from the fixed cover passes through the inner wall of the connecting cover and is fixedly connected to the tube wall of the arc tube, and the tube wall of the arc tube is fixedly connected with an inflation nozzle and an air pressure sensor.

[0011] In the above-mentioned automatic propulsion device suitable for drilling television, the bottom end of the fixed cover is fixedly connected with an arc-shaped guide plate, and the inner wall of the fixed cover is fixedly connected with a temperature control component.

[0012] In the above-mentioned automatic propulsion device suitable for drilling television, the transmission cable includes a data wire and a plurality of conductive connecting wires, the outer walls of the data wire and the plurality of conductive connecting wires are commonly wrapped with an insulating protective sleeve, the outer wall of the insulating protective sleeve is fixedly sleeved with a scale marking sleeve, the bottom end of the data wire is electrically connected to the connecting end of the probe body, the data wire is electrically connected to the data wire through a multi-channel conductive slip ring, the bottom ends of the plurality of conductive connecting wires are electrically connected to the brushless fan and the air pressure sensor respectively, and the plurality of conductive connecting wires are electrically connected to the wire assembly through the multi-channel conductive slip ring.

[0013] In the above-mentioned automatic propulsion device suitable for drilling television, a wire threading hole is opened at the bottom end of the movable frame, a threaded hole is opened on the side wall of the movable frame, and the hole wall of the threaded hole is threadedly connected with a limit bolt for limiting the hollow turntable, and a reciprocating electric push rod is fixedly embedded at the bottom end of the movable frame, and a cable frame is sleeved on the outer wall of the transmission cable, and the outer wall of the cable frame is fixedly connected to the movable end of the electric push rod.

[0014] Compared with the existing technology, the advantages of an automatic propulsion device suitable for drilling television are: 1. Through the positioning mechanism, rollers, mobile frame and L-shaped frame, when the drilling hole needs to be detected by the drilling TV, first the mobile frame of the drilling TV is transferred to the top of the drilling hole by the rollers, and then the positioning is performed by the positioning mechanism. The positioning by inserting the screw can ensure the stability of the arrangement of the drilling TV, and then the limiting bolt is rotated to make the side end of the limiting bolt away from the hollow turntable, so that the hollow turntable loses the restricted rotation and can rotate smoothly. During the rotation of the hollow turntable, the transmission cable is loosened, and the probe body at the bottom of the transmission cable is extended into the borehole mouth, so that the drilling TV does not need to arrange a tripod when detecting the borehole, and does not need to carry the various parts of the drilling TV, which saves time and effort. The mechanism integrates the various parts of the drilling TV through an integrated design, effectively shortens the preparation process for the drilling TV to detect the borehole, which can not only improve the convenience and efficiency of the drilling TV to detect the borehole, but also reduce the labor intensity of the staff.

[0015] 2. Through the cable retracting and releasing mechanism, the probe self-propelling mechanism, the feedback mechanism and the transmission cable, when the probe body 2 is just extended into the borehole mouth, it is first limited by the three feedback mechanisms to prevent the probe body from swinging and hitting the inner wall of the borehole. At the same time, the probe self-propelling mechanism is used to realize the automatic propulsion of the probe body along the inner wall of the borehole. The automatic propulsion can speed up the borehole detection efficiency of the drilling television, and the cable retracting and releasing mechanism and the transmission cable are coordinated during the detection process to ensure that the drilling television can operate reliably. This mechanism enables the probe of the drilling television to not only have the function of automatic propulsion to detect boreholes, but also has the function of anti-tilting, thereby improving the protection capability of the drilling television probe and improving the reliability and life of the drilling television.

[0016] 3. Through the feedback mechanism, when the probe body is pushed by the brushless fan to detect the inner wall of the borehole and encounters faults, local collapses, medium and large cracks, caves and other adverse geological structures, the aperture of the borehole at these adverse geological structures will expand, and when the feedback mechanism is pushed to these adverse geological structures, the air pressure in the feedback mechanism will decrease due to the lack of constraints from the inner wall of the borehole, and the air pressure sensor will transmit the reduced air pressure to the PLC controller in the form of an electrical signal in real time. The PLC controller controls the brushless fan to stop working for 30 seconds according to the air pressure electrical signal that is lower than the preset warning air pressure threshold. Within 0 seconds, the staff can judge the automatic advancement pause based on the screen of the drilling TV host, and the staff can manually control the brushless fan manually through the manual control panel in time. Manual control can accurately control the lowering speed of the probe body and ensure that the probe body can clearly capture the detection images of harsh geological structures. This mechanism enables the drilling TV to provide timely feedback when encountering harsh geological structures, interrupt the automatic advancement of the probe body, and control the probe body through the manual control panel to improve the clarity of the detection images of these harsh geological structures, thereby improving the accuracy of the drilling TV's drilling geological detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of an automatic propulsion device applicable to a drilling television provided by the present invention; Figure 2 It is a structural schematic diagram of an automatic propulsion device applicable to a drilling television provided by the present invention; Figure 3 It is a structural schematic diagram of an automatic propulsion device applicable to a drilling television provided by the present invention; Figure 4 It is a structural schematic diagram of an automatic propulsion device applicable to a drilling television provided by the present invention; Figure 5 It is a structural schematic diagram of an automatic propulsion device applicable to a drilling television provided by the present invention; Figure 6 The present invention is a schematic structural diagram of an automatic propulsion device suitable for drilling television.

[0018] In the figure: 1 drilling TV host, 2 probe body, 3 L-shaped frame, 4 mobile frame, 5 positioning mechanism, 51 threaded barrel, 52 screw, 53 chassis, 54 handle, 6 cable retracting mechanism, 61 first fixed tube, 62 hollow turntable, 63 second fixed tube, 64 multi-channel conductive slip ring, 65 data line, 66 wire assembly, 7 probe self-propelling mechanism, 71 brushless fan, 72 diverter cover, 73 air guide tube, 74 arc air tube, 75 filter mesh, 8 feedback mechanism, 81 telescopic rod, 82 fixed cover, 83 rubber cover , 84 spandex elastic cloth cover, 85 universal ball, 86 return spring, 87 arc tube, 88 hose, 89 inflation nozzle, 810 air pressure sensor, 9 transmission cable, 91 data wire, 92 conductive connecting wire, 93 insulating protective cover, 94 scale marking cover, 10 roller, 11 PLC controller, 12 manual control panel, 13 connecting ring, 14 battery, 15 connecting cover, 16 exhaust area, 17 air intake area, 18 arc guide plate, 19 temperature control component, 20 limit bolt, 21 electric push rod, 22 cable frame. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] like Figure 1-Figure 6 As shown, an automatic propulsion device suitable for a drilling TV comprises a drilling TV host 1, a probe body 2 and a battery 14. The bottom ends of the drilling TV host 1 and the battery 14 are fixedly connected with an L-shaped frame 3. The L-shaped frame 3 is fixedly connected with a moving frame 4. The bottom end of the moving frame 4 is fixedly connected with two symmetrically distributed rollers 10 and a positioning mechanism 5. The positioning mechanism 5 comprises two threaded barrels 51. The lower surface of the moving frame 4 is provided with two fixing through holes for fixing the threaded barrels 51. The inner wall of the threaded barrel 51 is threadedly connected with a screw 52. The bottom end of the screw 52 is provided with a conical inclined surface. The rod wall of the screw 52 is fixedly sleeved with a chassis 53. The outer wall of the chassis 53 is fixedly connected with two symmetrically distributed handles 54. The mechanism can improve the stability of the drilling TV during detection.

[0021] The outer walls of the moving frame 4 and the L-shaped frame 3 are commonly connected with a cable retracting mechanism 6, which includes a first fixed tube 61 fixedly connected to the outer wall of the moving frame 4, a tube wall of the first fixed tube 61 is connected with a hollow turntable 62 through a rolling bearing, a second fixed tube 63 is fixedly connected to the side of the hollow turntable 62 away from the first fixed tube 61, an outer wall of the second fixed tube 63 is connected to the L-shaped frame 3 through a rolling bearing, an outer wall of the L-shaped frame 3 is provided with a mounting hole matched with the rolling bearing, an inner wall of the second fixed tube 63 is fixedly connected with a multi-channel conductive slip ring 64, and a multi-channel conductive slip ring 64 is fixedly connected to the inner wall of the second fixed tube 63. The rotating part of the ring 64 is electrically connected to the transmission cable 9, the fixed part of the multi-channel conductive slip ring 64 is electrically connected to the data line 65 and the wire assembly 66, the data line 65 is electrically connected to the input end of the drilling TV host 1, the wire assembly 66 is electrically connected to the input end of the PLC controller 11, the end of the transmission cable 9 away from the multi-channel conductive slip ring 64 passes through the hollow turntable 62 and the fixed cover 82, and is electrically connected to the connection end of the probe body 2, the outer wall of the L-shaped frame 3 is fixedly connected to the PLC controller 11, and the input end of the PLC controller 11 is electrically connected to the manual control panel 12; The outer wall of the probe body 2 is fixedly sleeved with a connecting ring 13, and the connecting ring 13 and the outer wall of the probe body 2 are fixedly connected with a connecting cover 15, and the connecting ring 13 divides the connecting cover 15 into an exhaust area 16 and an intake area 17. The top of the connecting cover 15 is fixedly connected with a probe self-propelling mechanism 7, and the probe self-propelling mechanism 7 includes a brushless fan 71 for propelling the probe body 2 deep into the drilling hole. The upper surface of the connecting cover 15 is provided with a fixed through hole that cooperates with the brushless fan 71, and the top of the connecting cover 15 is fixed It is connected to a diverter hood 72, and a plurality of air guide tubes 73 are fixedly connected to the inner wall of the diverter hood 72. The jet ends of the air guide tubes 73 pass through the connecting hood 15 and the connecting ring 13, and are connected to the exhaust area 16. The bottom end of the connecting hood 15 is fixedly connected to a plurality of arc-shaped air pipes 74. The outer wall of the connecting hood 15 located in the air inlet area 17 is provided with two air inlets, and a filter mesh 75 is fixedly connected to the inner wall of the air inlet. This mechanism enables the probe of the drilling television to have the function of automatically advancing to detect drilling holes, thereby improving the efficiency of drilling detection.

[0022] The outer wall of the connecting cover 15 is evenly fixedly connected with three feedback mechanisms 8, and the feedback mechanism 8 includes two telescopic rods 81 fixedly connected to the outer wall of the connecting cover 15, and the outer sides of the two telescopic rods 81 are commonly fixedly connected with a fixed cover 82, and the bottom end of the fixed cover 82 is fixedly connected with an arc-shaped guide plate 18, and the inner wall of the fixed cover 82 is fixedly connected with a temperature control component 19, and the temperature control component 19 includes a temperature sensor and an electric heating tube. The temperature sensor can detect the air temperature in the fixed cover 82, and the electric heating tube can increase the temperature of the low-temperature air. To ensure that the air temperature in the feedback mechanism 8 is stable and does not shrink with the increase of the drilling depth, the arc-shaped guide plate 18 can lead out the feedback mechanism 8 that extends into the harsh geological structure, the outer wall of the fixed cover 82 is sealed and fixedly connected with a rubber cover 83, the outer wall of the rubber cover 83 is fixedly connected with a spandex elastic cloth cover 84, the outer wall of the spandex elastic cloth cover 84 is fixedly connected with the outer wall of the fixed cover 82, the outer walls of the spandex elastic cloth cover 84 and the rubber cover 83 are jointly provided with a plurality of connecting circular holes, and the hole walls of the connecting circular holes are fixedly connected with universal balls 85, The rod wall of the retracted rod 81 is movably sleeved with a return spring 86, and the two ends of the return spring 86 are respectively fixedly connected to the outer walls of the fixed cover 82 and the connecting cover 15. The interior of the connecting cover 15 is provided with an arc tube 87, and both ends of the arc tube 87 penetrate the connecting cover 15. The outer walls of the three fixed covers 82 are fixedly connected with hoses 88, wherein one end of the two hoses 88 away from the fixed cover 82 is respectively fixedly connected to the two side ends of the arc tube 87, and one end of the other hose 88 away from the fixed cover 82 passes through the inner wall of the connecting cover 15 and the pipe of the arc tube 87. The wall of the arc tube 87 is fixedly connected, and the wall of the arc tube 87 is fixedly connected with an inflation nozzle 89 and an air pressure sensor 810. This mechanism enables the borehole TV to provide timely feedback information when encountering harsh geological structures, and interrupt the automatic advancement of the probe body 2. The probe body 2 is controlled by the manual control panel 12 to improve the clarity of the detection images of these harsh geological structures, thereby improving the accuracy of the borehole TV in drilling geological detection, and the feedback mechanism 8 also improves the protection capability of the borehole TV probe, and improves the reliability and life of the borehole TV.

[0023] A threading hole is provided at the bottom end of the movable frame 4, and a threaded hole is provided on the side wall of the movable frame 4, and a limit bolt 20 for limiting the position of the hollow turntable 62 is threadedly connected to the hole wall of the threaded hole, and a reciprocating electric push rod 21 is fixedly embedded at the bottom end of the movable frame 4, and a cable frame 22 is sleeved on the outer wall of the transmission cable 9, and the outer wall of the cable frame 22 is fixedly connected to the movable end of the electric push rod 21. The reciprocating motion of the electric push rod 21 drives the cable frame 22 to reciprocate, so that the transmission cable 9 in the cable frame 22 is evenly wound around the hollow turntable 62.

[0024] The transmission cable 9 includes a data conductor 91 and a plurality of conductive connecting wires 92. The outer walls of the data conductor 91 and the plurality of conductive connecting wires 92 are jointly wrapped with an insulating protective sleeve 93. The outer wall of the insulating protective sleeve 93 is fixedly sleeved with a scale marking sleeve 94. The scale marking sleeve 94 can facilitate the staff to understand the lowering depth of the probe body 2. The bottom end of the data conductor 91 is electrically connected to the connecting end of the probe body 2. The data conductor 91 is electrically connected to the data line 65 through a multi-channel conductive slip ring 64. The bottom ends of the plurality of conductive connecting wires 92 are respectively electrically connected to the brushless fan 71, the air pressure sensor 810 and the temperature control component 19. The plurality of conductive connecting wires 92 are electrically connected to the conductor assembly 66 through a multi-channel conductive slip ring 64. The battery 14 can supply power to the above-mentioned channel equipment. The power supply technology and electrical connection technology of the battery 14 are both existing technologies and will not be repeated here.

[0025] The operating principle of the present invention is now described as follows: when the drilling hole needs to be detected by the drilling TV, the mobile frame 4 of the drilling TV is first transferred to the top of the drilling hole by the roller 10, and then the screw 52 is rotated by the handle 54 and the chassis 53, and the screw 52 is extended from the threaded barrel 51, and the bottom of the screw 52 is rotated and inserted into the ground until the chassis 53 contacts the ground. The insertion and positioning of the screw 52 can ensure the stability of the arrangement of the drilling TV, and then the limit bolt 20 is rotated to make the side end of the limit bolt 20 away from the hollow turntable 62, and the hollow turntable 62 loses the restricted rotation and can rotate smoothly. During the rotation of the hollow turntable 62, the transmission cable 9 is loosened, and the probe body 2 at the bottom of the transmission cable 9 is extended into the borehole mouth, so that the drilling TV can detect the drilling hole. Not only is there no need to arrange a tripod, there is also no need to carry the various parts of the drilling TV, which saves time and effort. After the drilling detection is completed, the hollow turntable 62 rotates in the opposite direction to reel in the transmission cable 9, so that the probe body 2 is discharged from the drill hole, and at the same time, the limit bolt 20 is rotated to squeeze the outer wall of the hollow turntable 62, and the hollow turntable 62 is prevented from rotating and loosening through the squeezing friction force, thereby preventing the probe body 2 from loosening after recovery, and then recovering the positioning mechanism 5 so that the roller 10 is not restricted by the positioning mechanism 5 when rolling, and finally the drilling TV can be conveniently moved by the roller 10. The mechanism integrates the various parts of the drilling TV through an integrated design, effectively shortening the preparation process for drilling TV for drilling detection, which not only improves the convenience and efficiency of drilling TV for drilling detection, but also reduces the labor intensity of the staff.

[0026] When the probe body 2 is just inserted into the borehole, air is filled into the arc tube 87 through the inflation nozzle 89, and the rubber cover 83 and the spandex elastic cloth cover 84 are inflated, and then the inflation is stopped, and then the drilling probe body 2 and the connecting cover 15 are inserted into the borehole. At this time, the ball end of the universal ball 85 rolls in contact with the inner wall of the hole, and the fixed cover 82 squeezes the telescopic rod 81 and the return spring 86 under the constraint of the hole wall. The return spring 86 is compressed to store energy. The elastic force accumulated in the return spring 86 can ensure that the universal ball 85 has a certain lateral extrusion when it contacts the hole wall, avoiding the free fall of the drilling probe, and the telescopic rod 81 can adjust the position of the feedback mechanism 8 by telescoping, so that the drilling TV can be applied to the detection of more holes with different diameters. After that, the battery 14 is used to supply power to each powered part of the borehole TV. At this time, the air pressure sensor 810 detects the air pressure value in the rubber cover 83 in the feedback mechanism 8, and the air pressure sensor 810 transmits the air pressure value in the form of an electrical signal to the PLC controller 11 through the conductive connecting wire 92, the multi-channel conductive slip ring 64 and the conductive component. The PLC controller 11 sets the air pressure as the warning air pressure threshold. At the same time, the picture taken by the probe body 2 is transmitted to the borehole TV host 1 through the data wire 91, the multi-channel conductive slip ring 64 and the data line 65 for display. The PLC controller 11 also transmits the air pressure value to the PLC controller 11 through the conductive connecting wire 92, the multi-channel conductive slip ring 64 and the data line 65. 92. The multi-channel conductive slip ring 64 and the conductive component control the brushless fan 71 and the temperature control component 19 to start. The temperature sensor in the temperature control component 19 can detect whether the air temperature in the feedback mechanism 8 is 25 degrees Celsius. If it is lower than 25 degrees Celsius, the temperature sensor in the temperature control component 19 sends an electrical signal to the PLC controller 11. The PLC controller 11 controls the electric heating tube in the temperature control component 19 to heat according to the electrical signal, so that the air in the feedback mechanism 8 always maintains a standard temperature of 25 degrees Celsius, avoiding the feedback mechanism 8 from shrinking due to cold as the drilling depth increases, thereby ensuring that the feedback mechanism 8 can be used continuously and reliably; After the brushless fan 71 is powered on, it draws air from the air inlet area 17 of the connecting cover 15. After the connecting cover 15 draws air, it also draws in external air through the air inlet hole for replenishment. In addition, since the brushless fan 71 has the characteristic of strong wind force, the reverse thrust generated by the brushless fan 71 is also relatively large. The reverse thrust of the brushless fan 71 can automatically push the probe body 2 forward in the borehole. At the same time, when the airflow blown out by the brushless fan 71 passes through the diverter cover 72, due to the diverting effect of the cover body of the diverter cover 72, part of the airflow blown out by the brushless fan 71 passes through the diverter cover 72 and enters the multiple air guide pipes 73, and enters the exhaust area 16 along the air guide pipes 73. Finally, the air in the exhaust area 16 is sprayed to the detection end of the probe body 2 through the multiple arc tubes 87, and then the air is discharged at the detection end of the probe body 2. A protective air film is formed, which can prevent dust and moisture from accumulating and blurring the clarity of the detection image of the probe body 2. When the brushless fan 71 pushes the probe body 2 down along the hole wall, the ball end of the universal ball 85 rolls on the hole wall without causing wear of the spandex elastic cloth cover 84. At the same time, due to the mutual cooperation of the three feedback mechanisms 8, the deflection of the probe body 2 in the connecting cover 15 and the collision with the hole wall can be avoided, and the swing of the transmission cable 9 will not cause the probe body 2 to shake and hit the hole wall of the borehole, thereby ensuring the safety of the probe body 2. This mechanism enables the probe of the drilling television to not only have the function of automatically advancing the detection of the borehole, but also has the function of preventing tilting, thereby improving the protection capability of the drilling television probe and improving the reliability and life of the drilling television.

[0027] When the probe body 2 is pushed by the brushless fan 71 to detect the inner wall of the borehole, when encountering severe geological structures such as faults, local collapses, medium and large cracks, and caves, the aperture of the borehole located at these severe geological structures will expand, and when the rubber cover 83 and the spandex elastic cloth cover 84 in the feedback mechanism 8 move to these severe geological structures, due to the lack of constraints from the inner wall of the borehole, the rubber cover 83 and the spandex elastic cloth cover 84 in the feedback mechanism 8 will be inflated by the air in the fixed cover 82, and the inflated rubber cover 83 will increase in size, further causing the internal air pressure of the common space formed by the feedback mechanism 8, the hose 88 and the arc tube 87 to decrease, and the air pressure sensor 810 transmits the reduced air pressure in the form of an electrical signal to the PLC controller 11 in real time, and the PLC controller 11 controls the brushless fan 71 to stop working for 30 seconds based on the air pressure electrical signal that is lower than the preset warning air pressure threshold, and works within these 30 seconds. Personnel can judge whether automatic advancement is paused according to the screen image of the drilling TV host 1, and the staff can manually control the brushless fan 71 through the manual control panel 12 in time. Manual control can accurately control the lowering speed of the probe body 2 and ensure that the probe body 2 can clearly capture the detection images of severe geological structures such as faults, local collapses, medium and large cracks, and caves. If the manual control panel 12 is not operated within 30 seconds, after the 30-second countdown is completed, the PLC controller 11 continues to control the brushless fan 71 to work, and the reverse thrust generated by the brushless fan 71 continues to push the probe body 2 downward. This mechanism enables the drilling TV to provide timely feedback when encountering severe geological structures, and interrupt the automatic advancement of the probe body 2. The probe body 2 is controlled by the manual control panel 12 to improve the clarity of the detection images of these severe geological structures, thereby improving the accuracy of the drilling TV in drilling geological detection.

[0028] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatic propulsion device suitable for a borehole television, comprising a borehole television host (1), a probe body (2) and a battery (14), characterized in that: The bottom ends of the drilling television host (1) and the storage battery (14) are fixedly connected to an L-shaped frame (3), the L-shaped frame (3) is fixedly connected to a movable frame (4), and the bottom end of the movable frame (4) is fixedly connected to two symmetrically distributed rollers (10) and a positioning mechanism (5); The outer walls of the movable frame (4) and the L-shaped frame (3) are commonly connected to a cable retracting mechanism (6); the outer wall of the L-shaped frame (3) is fixedly connected to a PLC controller (11); and the input end of the PLC controller (11) is electrically connected to a manual control panel (12); The outer wall of the probe body (2) is fixedly sleeved with a connecting ring (13); the connecting ring (13) and the outer wall of the probe body (2) are jointly fixedly connected with a connecting cover (15); the connecting ring (13) divides the connecting cover (15) into an exhaust area (16) and an intake area (17); the top of the connecting cover (15) is fixedly connected with a probe self-propulsion mechanism (7); The outer wall of the connection cover (15) is evenly and fixedly connected with three feedback mechanisms (8).

2. The automatic propulsion device for drilling television according to claim 1, characterized in that: The positioning mechanism (5) comprises two threaded barrels (51), the lower surface of the movable frame (4) is provided with two fixing through holes for fixing the threaded barrels (51), the inner wall of the threaded barrel (51) is threadedly connected with a screw rod (52), the bottom end of the screw rod (52) is provided with a conical inclined surface, the rod wall of the screw rod (52) is fixedly sleeved with a chassis (53), and the outer wall of the chassis (53) is fixedly connected with two symmetrically distributed handles (54).

3. The automatic propulsion device for drilling television according to claim 1, characterized in that: The cable retracting and releasing mechanism (6) comprises a first fixed tube (61) fixedly connected to the outer wall of the moving frame (4); the tube wall of the first fixed tube (61) is connected to a hollow turntable (62) via a rolling bearing; a second fixed tube (63) is fixedly connected to a side of the hollow turntable (62) away from the first fixed tube (61); the outer wall of the second fixed tube (63) is connected to the L-shaped frame (3) via a rolling bearing; the outer wall of the L-shaped frame (3) is provided with a mounting hole matched with the rolling bearing; the inner wall of the second fixed tube (63) is fixedly connected to a multi-channel conductive slip ring ( 64), the rotating part of the multi-channel conductive slip ring (64) is electrically connected to a transmission cable (9), the fixed part of the multi-channel conductive slip ring (64) is electrically connected to a data line (65) and a wire assembly (66), the data line (65) is electrically connected to the input end of the drilling television host (1), the wire assembly (66) is electrically connected to the input end of the PLC controller (11), and the end of the transmission cable (9) away from the multi-channel conductive slip ring (64) passes through the hollow turntable (62) and the fixed cover (82), and is electrically connected to the connection end of the probe body (2).

4. The automatic propulsion device for drilling television according to claim 3, characterized in that: The probe self-propulsion mechanism (7) comprises a brushless fan (71) for propelling the probe body (2) deep into the borehole; the upper surface of the connecting cover (15) is provided with a fixed through hole matched with the brushless fan (71); the top of the connecting cover (15) is fixedly connected with a diverter cover (72); the inner wall of the diverter cover (72) is fixedly connected with a plurality of air guide pipes (73); the jet end of the air guide pipe (73) passes through the connecting cover (15) and the connecting ring (13) and is connected with the exhaust area (16); the bottom end of the connecting cover (15) is fixedly connected with a plurality of arc-shaped air pipes (74); the outer wall of the connecting cover (15) located in the air inlet area (17) is provided with two air inlets, and the inner wall of the air inlet is fixedly connected with a filter mesh (75).

5. The automatic propulsion device for drilling television according to claim 4, characterized in that: The feedback mechanism (8) comprises two telescopic rods (81) fixedly connected to the outer wall of the connecting cover (15); the outer sides of the two telescopic rods (81) are commonly fixedly connected to a fixed cover (82); the outer wall of the fixed cover (82) is sealed and fixedly connected to a rubber cover (83); the outer wall of the rubber cover (83) is fixedly connected to a spandex elastic cloth cover (84); the outer wall of the spandex elastic cloth cover (84) is fixedly connected to the outer wall of the fixed cover (82); the outer walls of the spandex elastic cloth cover (84) and the rubber cover (83) are commonly provided with a plurality of connecting circular holes; the hole walls of the connecting circular holes are fixedly connected to universal balls (85); the rod walls of the telescopic rods (81) are movably sleeved with a return spring (86); The two ends of the return spring (86) are respectively fixedly connected to the outer walls of the fixed cover (82) and the connecting cover (15); an arc-shaped tube (87) is provided inside the connecting cover (15); both ends of the arc-shaped tube (87) penetrate the connecting cover (15); the outer walls of the three fixed covers (82) are fixedly connected with hoses (88); the ends of two hoses (88) away from the fixed cover (82) are respectively fixedly connected to the two side ends of the arc-shaped tube (87); the end of another hose (88) away from the fixed cover (82) passes through the inner wall of the connecting cover (15) and is fixedly connected to the tube wall of the arc-shaped tube (87); the tube wall of the arc-shaped tube (87) is fixedly connected with an inflation nozzle (89) and an air pressure sensor (810).

6. The automatic propulsion device for drilling television according to claim 5, characterized in that: The bottom end of the fixed cover (82) is fixedly connected to an arc-shaped guide plate (18), and the inner wall of the fixed cover (82) is fixedly connected to a temperature control component (19).

7. The automatic propulsion device for drilling television according to claim 5, characterized in that: The transmission cable (9) comprises a data conductor (91) and a plurality of conductive connecting wires (92); the outer walls of the data conductor (91) and the plurality of conductive connecting wires (92) are collectively wrapped with an insulating protective sleeve (93); the outer wall of the insulating protective sleeve (93) is fixedly sleeved with a scale marking sleeve (94); the bottom end of the data conductor (91) is electrically connected to a connection end of a probe body (2); the data conductor (91) is electrically connected to a data line (65) via a multi-channel conductive slip ring (64); the bottom ends of the plurality of conductive connecting wires (92) are electrically connected to a brushless fan (71) and an air pressure sensor (810), respectively; and the plurality of conductive connecting wires (92) are electrically connected to a conductor assembly (66) via a multi-channel conductive slip ring (64).

8. The automatic propulsion device for drilling television according to claim 3, characterized in that: A threading hole is provided at the bottom end of the movable frame (4), a threaded hole is provided at the side wall of the movable frame (4), and a limit bolt (20) for limiting the position of the hollow turntable (62) is threadedly connected to the hole wall of the threaded hole, a reciprocating electric push rod (21) is fixedly embedded at the bottom end of the movable frame (4), a cable frame (22) is sleeved on the outer wall of the transmission cable (9), and the outer wall of the cable frame (22) is fixedly connected to the movable end of the electric push rod (21).

Images