Safety monitoring equipment for fully mechanized coal mining face

Abstract

The invention discloses safety monitoring equipment for a fully mechanized coal mining face, and relates to the technical field of coal mining, the safety monitoring equipment comprises a base plate, a seismometer and a monitoring sensor are arranged on the base plate, and a plurality of insertion rods are arranged on the base plate; the base plate is extruded and driven by an automatic driving unit, so that the inserting rod is inserted into a fully mechanized coal mining face; when the fully-mechanized coal mining face needs to be monitored, the seismic geophone can be inserted into different positions of the fully-mechanized coal mining face through the automatic driving unit, seismic wave information generated in the micro-fracture process of rock mass is captured through the seismic geophone arranged in different orientations in the space, and the seismic wave information is analyzed and processed to monitor the fully-mechanized coal mining face. Key parameters such as the time, the position, the size, the number and energy release of micro-seismic events can be accurately determined, the fully mechanized coal mining face is monitored and processed through the multiple seismic geophone bodies which are evenly arranged, and the safety of coal mining operation on the fully mechanized coal mining face is improved.

Description

Technical Field

[0001] The invention relates to the technical field of coal mining, in particular to a safety monitoring device for a fully mechanized mining working face. Background Art

[0002] As is known to all, comprehensive mechanized coal mining refers to the entire production process of the coal mining face, including coal breaking, coal loading, coal transportation, support, goaf treatment, and mining tunnel transportation and excavation, all of which are mechanized. The main equipment of the comprehensive mining face includes: coal mining machine, flexible scraper conveyor and self-moving hydraulic support. The scraper conveyor is the main transportation equipment of the comprehensive mechanized coal mining face. In addition to transporting coal, it can also serve as the running track of the coal mining machinery, the fulcrum for the movement of the hydraulic support, the tensioning device with chain traction or the rack rail without chain traction for the coal mining machine, and has the functions of cleaning the floating coal on the working face and placing cables, water pipes, emulsion hoses, etc. When the coal mining machine is mining on the comprehensive mining face, in order to ensure the safety of the coal mining machine in the tunnel, it is necessary to monitor the safety of the comprehensive mining face and the coal mining machine, take precautions in advance for the collapse of the comprehensive mining face, and ensure the safety of the comprehensive mining face.

[0003] For example, the patent entitled "Video Monitoring Method, Device, Electronic Equipment and Medium for Coal Mine Comprehensive Mining Face" with publication number CN116347240A and publication date June 27, 2023, relates to a method, device, electronic equipment and medium for video monitoring of a coal mine comprehensive mining face. At least one video monitoring device is installed on either side of the top beam adjacent to at least one hydraulic support, and the mounting frame for fixing the video monitoring device has a set upward elevation angle relative to the horizontal direction. The method includes: obtaining the position of the coal mining machine; determining, based on the position of the coal mining machine, multiple video monitoring devices that need to be turned on, as well as preset points for each video monitoring device; and controlling each of the multiple video monitoring devices to rotate according to the determined preset points to achieve video monitoring of the coal mine comprehensive mining face. Thus, by properly installing the video monitoring equipment, the video monitoring equipment can complete intelligent video monitoring of the coal mine comprehensive mining face through preset points based on the position of the coal mining machine.

[0004] The shortcoming of the existing technology is that, when conducting safety monitoring of the fully-mechanized mining face and the coal mining machine, most of them use seismic pickups to capture key seismic parameters such as elastic waves of the fully-mechanized mining face in real time, and use intelligent algorithms to extract disaster precursor information to provide continuous and reliable early warning for coal, rock and gas dynamic disasters. However, after the coal mining machine collects coal from the fully-mechanized mining face, when the fully-mechanized mining face changes, the seismic pickup needs to change with the position of the fully-mechanized mining face. The existing solution is to manually change the installation position of the seismic pickup, so as to achieve the purpose of moving with the advancement of the fully-mechanized mining face. However, manually changing the installation position of the seismic pickup is obviously very inconvenient and poses a great safety hazard. Summary of the Invention

[0005] The purpose of the present invention is to provide a safety monitoring device for fully mechanized mining working faces to solve the technical problems in related technologies.

[0006] In order to achieve the above-mentioned objectives, the present invention provides the following technical solutions: a safety monitoring device for a comprehensive mining working face, comprising a base plate, on which a vibration pickup and a monitoring sensor are provided, and a plurality of insertion rods are provided on the base plate, and the base plate is squeezed and driven by an automatic driving unit so that the insertion rods are inserted into the comprehensive mining working face.

[0007] As mentioned above, the substrate and the vibration pickup are connected to each other through magnetic attraction.

[0008] As mentioned above, the end of each of the insertion rods is a tip that facilitates the insertion of the insertion rod into the fully mechanized mining working face.

[0009] As mentioned above, a plurality of through holes are evenly formed on the bottom end of the base plate, and a supporting rod is slidably arranged in each of the through holes.

[0010] As mentioned above, each of the supporting rods is sleeved with a first elastic member.

[0011] As mentioned above, each of the two ends of each supporting rod is provided with a baffle to prevent the supporting rod from sliding out of the through hole.

[0012] As mentioned above, the automatic driving unit is provided with a monitoring probe.

[0013] As mentioned above, a plurality of through holes are evenly provided on the substrate, a plurality of recessed holes are evenly provided on the vibration pickup, and a through groove is provided in each of the insertion rods. The through groove axially passes through the entire insertion rod, and a driven pointed rod is slidably installed in the through groove, and each of the driven pointed rods extends out from the corresponding insertion rod end.

[0014] As mentioned above, each of the driven pointed rods and the inner wall of the corresponding through slot is connected via a second elastic member.

[0015] As mentioned above, each of the driven pointed rods and the corresponding recessed holes and through holes are plugged into and fitted with each other.

[0016] The beneficial effect of the present invention is that when it is necessary to monitor the fully mechanized mining working face, the base plate and the vibration pickup are inserted into the fully mechanized mining working face through the automatic driving unit, and the vibration pickup can be inserted into different positions of the fully mechanized mining working face through the automatic driving unit. The vibration pickups arranged in different orientations in space are used to capture the seismic wave information generated by the rock mass during the micro-fracture process. Through the analysis and processing of these seismic wave information, the key parameters such as the time, position, size, number and energy release of the micro-seismic event can be accurately determined. These parameters provide an important basis for inferring the internal stress state and damage condition of the fully mechanized mining working face, and provide continuous and reliable early warning for coal, rock and gas dynamic disasters. The fully mechanized mining working face is monitored and processed by multiple vibration pickups evenly arranged, thereby improving the safety of coal mining operations on the fully mechanized mining working face. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments described in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0018] Figure 1 Schematic diagram of the three-dimensional structure of the automatic drive unit of the present invention;

[0019] Figure 2 For the present invention Figure 1 Schematic diagram of the cross-section structure;

[0020] Figure 3 A schematic diagram of a partial three-dimensional structure of another embodiment provided by the present invention from a first viewing angle;

[0021] Figure 4 A schematic diagram of a partial three-dimensional structure from a second viewing angle of another embodiment provided by the present invention;

[0022] Figure 5 For the present invention Figure 4 Schematic diagram of the cross-section structure;

[0023] Figure 6 A schematic diagram of a partial three-dimensional structure of another embodiment provided by the present invention;

[0024] Figure 7 For the present invention Figure 6 Schematic diagram of the local cross-section structure;

[0025] Figure 8 A schematic diagram of a partial cross-sectional structure of a first viewing angle of another embodiment provided by the present invention;

[0026] Figure 9 For the present invention Figure 8 A schematic diagram of a partially enlarged cross-sectional structure at L;

[0027] Figure 10 For the present invention Figure 9 A schematic diagram of the partially enlarged cross-sectional structure at position M;

[0028] Figure 11 A schematic partial cross-sectional view of a passive lever in a locked state according to another embodiment of the present invention;

[0029] Figure 12 For the present invention Figure 11 A schematic diagram of a partially enlarged cross-sectional structure at location N;

[0030] Figure 13 It is a schematic diagram of the partial cross-sectional structure of the insertion rod of the present invention when it is in a bent state;

[0031] Figure 14 For the present invention Figure 13 A schematic diagram of the partially enlarged cross-sectional structure at P;

[0032] Figure 15 A schematic diagram of a partial cross-sectional structure from a second viewing angle of yet another embodiment provided by the present invention.

[0033] Description of reference numerals:

[0034] 1. Vibration pickup; 2. Walking robot; 4. Base plate; 5. Insertion rod; 11. Monitoring probe; 15. Perforation; 16. Support rod; 17. First elastic member; 18. Baffle; 19. Through hole; 20. Concave hole; 21. Through slot; 22. Driven pointed rod; 23. Second elastic member; 24. Clamping plate; 25. Second driving member; 26. Placement slot; 27. Accommodation slot; 28. Through slot; 29. Passive rod; 30. Clamping plate; 31. Third elastic member; 32. First elastic barrier; 33. Second elastic barrier; 34. Locking slot; 35. Clamping slot; 36. Positioning shaft; 37. Straight rod; 38. First locking member; 39. Second locking member; 40. Square rod; 41. Fourth elastic member; 42. Unlocking rod; 43. Insertion slot; 44. Fifth elastic member; 45. Unlocking rope. DETAILED DESCRIPTION

[0035] In order to make those skilled in the art better understand the technical solution of the present invention, Figure 1 To the attached Figure 15 The present invention is further described in detail.

[0036] An embodiment provided by the present invention relates to a safety monitoring device for a fully mechanized mining working face, comprising a substrate 4, on which a vibration pickup 1 and a monitoring sensor are provided, and on which a plurality of insertion rods 5 are provided. The substrate 4 is squeezed and driven by an automatic driving unit so that the insertion rods 5 are inserted into the fully mechanized mining working face.

[0037] Specifically, the fully mechanized mining face is the coal face where coal is mined in the tunnel, that is, the coal mining face where the coal shearer mines coal. The monitoring equipment (also known as the safety monitoring equipment) is the equipment for safety monitoring of the coal mining work. In order to provide safety protection for the coal shearer to perform coal mining work in the tunnel, it is necessary to monitor the safety of the fully mechanized mining face and the coal shearer to ensure the safety of the fully mechanized mining face. The monitoring sensor (not shown in the figure) is a sensor that detects other parameters of the fully mechanized mining face (such as temperature sensors, air quality sensors, and carbon monoxide sensors that can monitor other parameters of the fully mechanized mining face). The vibration pickup 1 is a tool for safety monitoring of the fully mechanized mining face. The vibration pickup 1 can capture the real-time Key seismic parameters such as elastic waves of coal and rock masses are used to extract disaster precursor information through monitoring equipment and intelligent algorithms to provide continuous and reliable early warning for coal, rock, gas and dynamic disasters, thereby ensuring the safety of the fully-mechanized mining face. The vibration pickup 1 and the monitoring sensor are connected to the monitoring equipment through signal lines, so that the vibration pickup 1 and the monitoring sensor can transmit the key seismic parameters such as the elastic waves of coal and rock masses and other parameters captured in real time to the monitoring equipment in real time. The monitoring equipment can display the signals transmitted by the vibration pickup 1 and the monitoring sensor in real time, and then extract disaster precursor information. The automatic driving unit is capable of inserting the rod 5 on the base plate 4 into the fully-mechanized mining face, and the automatic driving unit can perform linear reciprocating motion and The automatic driving unit can move by itself (such as the walking robot 2), and the automatic driving unit is a carrier that can move freely, so that the automatic driving unit can not only insert the rod 5 on the base plate 4 into the comprehensive mining working surface, but also can take out the base plate 4 and the rod 5 in the comprehensive mining working surface, so that the automatic driving unit can change the position of the base plate 4 and the rod 5, so that the automatic driving unit drives the vibration pickup 1 to move synchronously with the advancement of the comprehensive mining working surface. The walking robot 2 inserts the rod 5 into the comprehensive mining working surface and takes the rod 5 out of the comprehensive mining working surface by swinging back and forth through the swing arm. This is common knowledge in the field and will not be repeated. The automatic driving unit is provided with a monitoring probe 11. Through the monitoring probe 11 monitors the fully mechanized mining face, and can also monitor the coal mining machine, the movable frame and the push conveyor respectively through different monitoring probes 11, and can perform multi-faceted monitoring and processing on the fully mechanized mining face. The substrate 4 and the vibration pickup 1 are connected to each other by magnetic attraction, and the substrate 4 has a magnetic attraction force (that is, a magnetic block is provided on the middle part of the substrate 4, so that the substrate 4 has a magnetic force, and the outer wall of the vibration pickup 1 is made of metal material, so that the vibration pickup 1 can be magnetically attracted to the substrate 4, or a magnetic block with magnetic attraction is provided on the vibration pickup 1, and the substrate 4 is made of metal material, so that the vibration pickup 1 can be adsorbed on the substrate 4), and the end of each of the insertion rods 5 is a tip for facilitating the insertion of the insertion rod 5 into the fully mechanized mining face;The automatic driving unit can drive the base plate 4 and the insertion rod 5 to move to the appropriate insertion position (that is, the automatic driving unit drives the base plate 4 and the insertion rod 5 to the installation position of the vibration pickup 1). When it is necessary to monitor the comprehensive mining working face, the automatic driving unit drives the base plate 4 to move to the appropriate insertion position, and then the automatic driving unit applies a driving force to the base plate 4, so that the insertion rod 5 on the base plate 4 is inserted into the comprehensive mining working face. The hardness of the comprehensive mining working face (that is, the coal face of coal mining) is relative. The hardness of coal generally includes Mohs hardness, Vickers hardness and BrineⅡ hardness, and the hardness is generally between 1-4. The force applied to the automatic driving unit is greater than the hardness of the coal, so the base plate 4 and the insertion rod 5 can be inserted into the comprehensive mining working face, and then the vibration pickup 1 is adsorbed on the base plate 4. The vibration pickup 1 and the base plate 4 can be inserted into different positions of the comprehensive mining working face through the automatic driving unit, and the automatic driving unit can place the monitoring sensor Deployed at different locations on different fully mechanized mining faces, using spatially positioned vibration pickups 1 and monitoring sensors to capture seismic wave information generated by rock mass during microfracture. By analyzing and processing this seismic wave information, the monitoring equipment can accurately determine key parameters such as the time, location, magnitude, quantity, and energy release of microseismic events. These parameters provide an important basis for inferring the internal stress state and damage status of the fully mechanized mining face, providing continuous and reliable early warning for coal, rock, and gas dynamic disasters. By evenly disposing multiple vibration pickups 1 to monitor and process the fully mechanized mining face, the safety of coal mining operations on the fully mechanized mining face is improved. The position of the vibration pickup 1 is changed by an automatic drive unit, eliminating the safety risks associated with manual installation of the vibration pickup 1. Furthermore, the vibration pickup 1 provides safer monitoring of the fully mechanized mining face.

[0038] The shortcoming of the existing technology is that when conducting safety monitoring of the fully-mechanized mining working face and the coal mining machine, most of them use seismic pickups to capture the elastic waves and other key seismic parameters of the fully-mechanized mining working face in real time, and use intelligent algorithms to extract disaster precursor information to provide continuous and reliable early warning for coal, rock and gas dynamic disasters. However, after the coal mining machine collects coal from the fully-mechanized mining working face, after the fully-mechanized mining working face changes, the seismic pickup needs to change with the position of the fully-mechanized mining working face. The existing solution is to manually change the installation position of the seismic pickup, so as to achieve the purpose of moving with the advancement of the fully-mechanized mining working face. However, manually changing the installation position of the seismic pickup poses a great safety hazard.

[0039] The beneficial effect of this embodiment is that when it is necessary to monitor the fully mechanized mining face, the vibration pickup 1 is inserted into the fully mechanized mining face through the automatic driving unit. The vibration pickup 1 can be inserted into different positions of the fully mechanized mining face through the automatic driving unit. The vibration pickups 1 arranged at different orientations in space are used to capture the seismic wave information generated by the rock mass during the micro-fracture process. Through the analysis and processing of these seismic wave information, the key parameters such as the time, position, size, number and energy release of the micro-seismic event can be accurately determined. These parameters provide an important basis for inferring the internal stress state and damage condition of the fully mechanized mining face, and provide continuous and reliable early warning for coal, rock and gas dynamic disasters. The fully mechanized mining face is monitored and processed by multiple vibration pickups 1 evenly arranged, thereby improving the safety of coal mining operations on the fully mechanized mining face.

[0040] In another embodiment provided by the present invention, a plurality of through holes 15 are evenly provided at the bottom end of the substrate 4, a supporting rod 16 is slidably arranged in each of the through holes 15, and a first elastic member 17 is sleeved on each of the supporting rods 16; and a baffle 18 is provided at each end of each of the supporting rods 16 to prevent the supporting rod 16 from sliding out of the through hole 15.

[0041] Specifically, in the process of the automatic driving unit inserting the base plate 4 and the insertion rod 5 into the comprehensive mining working surface, as the insertion rod 5 is inserted into the comprehensive mining working surface, the supporting rod 16 and the baffle 18 will be pressed against the comprehensive mining working surface. When the baffle 18 and the supporting rod 16 are pressed against the comprehensive mining working surface, the baffle 18 and the supporting rod 16 are squeezed by the comprehensive mining working surface, so that the baffle 18 and the supporting rod 16 slide out of the perforation 15. Synchronously, the baffle 18 provides a certain extrusion force to the first elastic member 17 (the first elastic member 17 is a component that can be telescopically reset, preferably a spring), so that the first elastic member 17 is in a compressed state until the surface of the base plate 4 is in close contact with the comprehensive mining working surface. At this time, the baffle 18 and the supporting rod 16 are located below the vibration pickup 1. When the coal mining machine mines the comprehensive mining working surface, the comprehensive mining work The vibration generated on the working surface is large, which causes large vibration to the vibration pickup 1 adsorbed on the substrate 4, and may cause the vibration pickup 1 to slide down on the substrate 4. Since the supporting rod 16 extends out of the substrate 4, the supporting rod 16 can support the vibration pickup 1 to prevent the vibration pickup 1 from falling from the substrate 4, thereby affecting the monitoring effect of the vibration pickup 1. At the same time, the first elastic member 17 provides elastic force for the baffle 18 and the supporting rod 16, so that the supporting rod 16 and the baffle 18 provide a certain elastic force for the substrate 4. Since the insertion force of the first elastic member 17 and the insertion rod 5 into the comprehensive mining working surface is different by orders of magnitude, the first elastic member 17 and the supporting rod 16 can effectively prevent the insertion rod 5 from shaking in the comprehensive mining working surface, thereby improving the stability of the substrate 4 and the insertion rod 5 inserted into the comprehensive mining working surface.

[0042] In another embodiment provided by the present invention, a plurality of through holes 19 are evenly provided on the substrate 4, a plurality of recessed holes 20 are evenly provided on the vibration pickup 1, and a through groove 21 is provided in each of the insertion rods 5. The through groove 21 axially penetrates the entire insertion rod 5, and a driven pointed rod 22 is slidably installed in the through groove 21. Each of the driven pointed rods 22 extends out from the end of the corresponding insertion rod 5, and each of the driven pointed rods 22 and the inner wall of the corresponding through groove 21 are connected by a second elastic member 23. Each of the driven pointed rods 22 and the corresponding recessed hole 20 and the through hole 19 are plugged into and fitted with each other.

[0043] Specifically, since the vibration pickup 1 is subjected to the vibration generated by the coal mining machine when mining the fully mechanized mining face on the base plate 4, the vibration pickup 1 may slide down the surface of the base plate 4 (since the vibration generated by the coal mining machine when it approaches the vibration pickup 1 is too large, the vibration pickup 1 may vibrate and slide on the surface of the base plate 4). Due to the movement of the vibration pickup 1, the vibration signal transmitted by the vibration pickup 1 to the monitoring device is deviated. In this embodiment, during the process of the automatic driving unit inserting the base plate 4 and the insertion rod 5 into the fully mechanized mining face, the tip portion of the driven pointed rod 22 extends out of the insertion rod 5. During the process of inserting the insertion rod 5 into the fully mechanized mining face, the driven pointed rod 22 is first pressed against the fully mechanized mining face, and since the second elastic member 23 (the second elastic member 23) is passed between the driven pointed rod 22 and the inner wall of the through groove 21 Part 23 is a component that can be telescopically reset, preferably a spring), and the driven pointed rod 22 has a certain elastic force. As the insertion rod 5 is inserted into the comprehensive mining working surface, the driven pointed rod 22 gradually slides into the through groove 21, and the driven pointed rod 22 slides from the through groove 21 into the through hole 19 and the concave hole 20, so that the driven pointed rod 22 can position the vibration pickup 1 through the plug-in cooperation with the concave hole 20, which can prevent the vibration pickup 1 from sliding on the substrate 4 due to vibration. Until the surface of the substrate 4 and the comprehensive mining working surface are in close contact with each other, the driven pointed rod 22 is inserted into the end of the concave hole 20, so that the driven pointed rod 22 can stably position the vibration pickup 1, and can also directly transmit the vibration of the driven pointed rod 22 to the vibration pickup 1, thereby improving the accuracy of the vibration pickup 1 in monitoring the comprehensive mining working surface.

[0044] In another embodiment provided by the present invention, a clamping mechanism is provided on the automatic drive unit, and the clamping mechanism includes a clamping plate 24 and a second drive member 25. A second drive member 25 is provided in the middle of the automatic drive unit, and the two ends of the second drive member 25 are respectively connected to a clamping plate 24. The two clamping plates 24 move synchronously to clamp the opposite sides of the substrate 4. A placement groove 26 is provided at the end of the automatic drive unit, and a vibration pickup 1 is placed in the placement groove 26. A plurality of through holes 19 are evenly provided on the substrate 4, and a plurality of concave holes 20 are evenly provided on the vibration pickup 1. Each of the insertion rods 5 has an accommodating groove 27, and each of the outer walls of the insertion rods 5 has an opening. There is a through slot 28, and a passive rod 29 is slidably installed in each of the accommodating slots 27. A clamping plate 30 is provided on the end of each of the passive rods 29 away from the base plate 4, and each of the clamping plates 30 is slidably arranged in the through slot 28 corresponding thereto, so that one end of each of the clamping plates 30 is located outside the insertion rod 5, and the end of each of the passive rods 29 away from the base plate 4 is connected to the inner wall of the corresponding accommodating slot 27 by a third elastic member 31. The end of each of the clamping plates 30 close to the base plate 4 is connected to a first elastic barrier piece 32, and the end of each of the first elastic barrier pieces 32 is connected to the base plate 4, and the end of each of the clamping plates 30 away from the base plate 4 is connected to a second elastic barrier piece. The spacer 33, each of the second elastic barrier pieces 33 is connected to the insertion rod 5, and each of the passive rods 29 is provided with a locking groove 34 at one end close to the substrate 4, and a tightening groove 35 is provided at the end of each of the passive rods 29 close to the substrate 4. A straight rod 37 is rotatably provided on the side wall of the end of each of the recessed holes 20 away from the substrate 4 through a positioning shaft 36, that is, the end of the straight rod 37 away from the substrate 4 is rotatably provided on the side wall of the end of the recessed hole 20 through the positioning shaft 36, and the end of the straight rod 37 away from the substrate 4 is provided with a first locking piece 38, and the first locking piece 38 and the tightening groove 35 are adapted to each other, and the other end of the straight rod 37 is provided with a second locking piece 39, and the second locking piece 39 and the locking groove 34 are adapted to each other. They are adapted to each other, and each of the straight rods 37 is connected to a square rod 40 at one end away from the base plate 4. Each of the square rods 40 and the inner wall of the recessed hole 20 is connected by a fourth elastic member 41. An unlocking rod 42 is slidably arranged in each of the recessed holes 20. Each of the second locking members 39 is provided with an inserting groove 43. Each of the unlocking rods 42 and the corresponding inserting groove 43 are plugged into and matched with each other. Each of the unlocking rods 42 and the inner wall of the corresponding recessed hole 20 are connected by a fifth elastic member 44. Each of the unlocking rods 42 is connected to an unlocking rope 45, which passes through the shock absorber 1, the base plate 4 and the clamping plate 30 and is connected to the tip part of the insertion rod 5.

[0045] Specifically, when the base plate 4 needs to be plugged into the comprehensive mining working surface, the vibration pickup 1 is located in the placement slot 26 on the automatic drive unit, and then the second drive member 25 (the second drive member 25 is a device with two output ends capable of synchronous movement, such as a bidirectional cylinder) drives the clamping plate 24 to clamp the base plate 4, and then the automatic drive unit drives the base plate 4 to move to a suitable plug-in position. In the process of the automatic drive unit inserting the base plate 4 and the insertion rod 5 into the comprehensive mining working surface, when the insertion rod 5 is inserted into a part of the comprehensive mining working surface, the clamping plate 30 is slidably arranged in the through slot 28, and One end of the clamping plate 30 is located outside the insertion rod 5, and the clamping plate 30 and the comprehensive mining working surface are in contact with each other. When the insertion rod 5 continues to be inserted into the comprehensive mining working surface, the clamping plate 30 drives the passive rod 29 to slide along the trajectory of the accommodating groove 27, so that the passive rod 29 passes through the through hole 19 and slides into the concave hole 20. The passive rod 29 stretches the third elastic member 31 (the third elastic member 31 is an original member that can be telescopically reset, preferably a spring) so that the third elastic member 31 is in a stretched state. Synchronously, the clamping plate 30 stretches the second elastic barrier sheet 33, and the second elastic barrier sheet 33 is a sheet made of elastic material (such as rubber), which makes the second elastic barrier 33 have good stretching and contraction capabilities. The second elastic barrier 33 stretches as the pressing plate 30 moves, so that the second elastic barrier 33 seals the through groove 28 to prevent coal from entering the receiving groove 27 from the through groove 28. At the same time, the first elastic barrier 32 rebounds. The first elastic barrier 32 is a sheet made of elastic material (such as rubber), which makes the first elastic barrier 32 have good stretching and contraction capabilities. Since the third elastic member 31 is in its original length, When the pressing plate 30 is located in the through groove 28 on the side away from the base plate 4, the base plate 4 stretches the first elastic barrier sheet 32 to prevent coal or other materials from entering the receiving groove 27 from the through groove 28. After the distance between the pressing plate 30 and the base plate 4 is reduced, the first elastic barrier sheet 32 contracts accordingly. The arrangement of the first elastic barrier sheet 32 and the second elastic barrier sheet 33 can ensure that the through groove 28 is always in a sealed state, and no coal or other materials will enter the receiving groove 27 from the through groove 28, thereby ensuring the cleanliness of the receiving groove 27.

[0046] Before the contact between the pressing groove 35 and the passive rod 29, under the elastic force of the fourth elastic member 41 (the fourth elastic member 41 is a member capable of telescopic reset, preferably a spring), the square rod 40 and the straight rod 37 are tilted around the positioning axis 36, so that the tilt direction of the square rod 40 and the straight rod 37 is from the end away from the insertion rod 5 to the end close to the insertion rod 5. Figure 9 and Figure 10The first locking member 38 and the second locking member 39 are rotated about the positioning shaft 36 by the tightening groove 35 on the passive rod 29. Synchronously, the straight rod 37 drives the second locking member 39 to rotate. During the rotation of the second locking member 39, the second locking member 39 first squeezes the unlocking rod 42, so that the unlocking rod 42 squeezes the fifth elastic member 44 (the fifth elastic member 44 is a component that can be telescopically reset, preferably a spring). Then, when the insertion groove 43 on the second locking member 39 moves to a position where it is inserted into the unlocking rod 42, under the rebound action of the fifth elastic member 44, the unlocking rod 42 is inserted into the insertion groove 43 on the second locking member 39. At this time, the straight rod 37 and the square rod 40 rotate to a position parallel to the passive rod 29. The square rod 40 squeezes the fourth elastic member 41, and the second locking member 39 is inserted into the locking groove 34 on the passive rod 29 (as shown in FIG. Figure 11 and Figure 12 As shown), the second locking piece 39, the first locking piece 38 and the straight rod 37 lock the passive rod 29, and the unlocking rod 42 positions the second locking piece 39, so that the passive rod 29 positions the vibration pickup 1 through the recessed hole 20, thereby preventing the vibration pickup 1 from sliding on the substrate 4, improving the stability of the installation of the vibration pickup 1, and improving the accuracy of the vibration pickup 1 in monitoring the comprehensive mining working face.

[0047] Since the insertion rod 5 and the base plate 4 are inserted and removed from the fully mechanized mining working surface for a long time, the insertion rod 5 is easily bent by the compression of the fully mechanized mining working surface. Figure 13 and Figure 14As shown in the figure, the insertion rod 5 drives the unlocking rope 45 to move toward one end close to the base plate 4, and the unlocking rope 45 drives the unlocking rod 42 to move toward one end close to the base plate 4, so that the unlocking rod 42 slides out of the locking groove 34 on the second locking member 39, so that the unlocking rod 42 releases the lock of the second locking member 39, and under the rebound action of the fourth elastic member 41, the fourth elastic member 41 pushes the square rod 40 and the straight rod 37 to rotate around the positioning axis 36, so that the second locking member 39 slides out of the locking groove 34 on the passive rod 29, so that the second locking member 39, the square rod 40 and the straight rod 37 release the lock of the passive rod 29, and at the moment the passive rod 29 is unlocked, under the rebound action of the third elastic member 31, the third elastic member 31 pulls the passive rod 29 to slide instantly toward the tip of the insertion rod 5, so that the passive rod 29 corrects the bending position of the insertion rod 5. At the same time, the passive rod 29 provides the insertion force for the insertion rod 5 to prevent the bending position of the insertion rod 5 from breaking. Furthermore, even if the insertion rod 5 breaks, it can be inserted into the comprehensive mining working surface through the passive rod 29 that slides out instantly, and will not affect the monitoring of the comprehensive mining working surface by the vibration pickup 1. Since the unlocking rope 45 is connected to the insertion rod 5, when the insertion rod 5 is taken out from the comprehensive mining working surface, the unlocking rope 45 can completely take out the broken insertion rod 5 from the comprehensive mining working surface. What people in this field can know is that the unlocking rod 42 has other active ways to release the positioning of the second locking piece 39 (such as: an electric push rod is set between the unlocking rod 42 and the inner wall of the recessed hole 20, and the unlocking rod 42 is driven by the electric push rod to perform linear reciprocating motion), so that the unlocking rod 42 can position and unlock the second locking piece 39.

[0048] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims.

Claims

1. A safety monitoring device for a fully mechanized mining face, comprising a base plate, on which a vibration pickup and a monitoring sensor are provided, characterized in that: A plurality of insertion rods are arranged on the base plate, and the base plate is squeezed and driven by an automatic driving unit so that the insertion rods are inserted into the fully mechanized mining working surface.

2. A safety monitoring device for fully mechanized mining working face according to claim 1, characterized in that: The substrate and the vibration pickup are connected to each other through magnetic attraction.

3. The safety monitoring device for fully mechanized mining working face according to claim 1, characterized in that: The end of each of the insertion rods is a pointed end for facilitating the insertion of the insertion rod into the fully mechanized mining working face.

4. The safety monitoring device for fully mechanized mining working face according to claim 1, characterized in that: A plurality of through holes are evenly formed on the bottom end of the base plate, and a supporting rod is slidably arranged in each of the through holes.

5. The safety monitoring device for fully mechanized mining working face according to claim 4 is characterized in that: Each of the supporting rods is sleeved with a first elastic member.

6. The safety monitoring device for fully mechanized mining working face according to claim 4, characterized in that: The two ends of each supporting rod are respectively provided with a baffle to prevent the supporting rod from sliding out of the perforation.

7. The safety monitoring device for fully mechanized mining working face according to claim 1, characterized in that: The automatic driving unit is provided with a monitoring probe.

8. The safety monitoring device for fully mechanized mining working face according to claim 1, characterized in that: A plurality of through holes are evenly provided on the substrate, a plurality of recessed holes are evenly provided on the vibration pickup, a through slot is provided in each of the insertion rods, the through slot axially passes through the entire insertion rod, a driven pointed rod is slidably installed in the through slot, and each of the driven pointed rods extends out from the end of the insertion rod corresponding to it.

9. The safety monitoring device for fully mechanized mining working face according to claim 8, characterized in that: Each of the driven pointed rods is connected to the inner wall of the corresponding through slot via a second elastic member.

10. The safety monitoring device for fully mechanized mining working face according to claim 8, characterized in that: Each of the driven pointed rods and the corresponding recessed holes and through holes are plugged and matched with each other.

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