Mine mining drilling equipment

Abstract

The invention relates to the technical field of mining, and discloses mining drilling equipment which comprises a base, a lifting frame is arranged on the upper portion of one side of the base, a drilling mechanism is arranged on one side of the lifting frame, a protection mechanism used for preventing soil particles and stones from splashing is further arranged on the base, and the drilling mechanism comprises a beam plate. A hollow drill rod is rotatably arranged on the upper portion of the end, away from the lifting frame, of the beam plate in a penetrating mode, the drilling mechanism further comprises a drilling driving mechanism used for driving the hollow drill rod to rotate, a fixing base communicated with the interior of the hollow drill rod is arranged at the lower end of the hollow drill rod, and L-shaped drill bits transversely penetrate through the outer wall of the fixing base in a sliding mode at equal intervals. According to the mining drilling equipment, the distance between the L-shaped drill bits can be adjusted by rotating the handle, so that holes of different sizes can be drilled according to needs, the drill bits of corresponding sizes and models do not need to be replaced, time is saved, and the mining drilling efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of mining, in particular to a mining drilling device. Background Art

[0002] The mining industry plays an important role in the global economy, providing raw materials for many industrial sectors. Mining drilling equipment is a vital tool in the mining industry, used to drill and extract underground mineral deposits.

[0003] However, when traditional mining drilling equipment needs to drill holes of different sizes, it is necessary to replace the drill bit of the corresponding model, and during drilling, it is impossible to quickly judge the geological conditions, thus wasting unnecessary resource investment. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a mining drilling device, which solves the problem that traditional mining drilling equipment needs to replace the drill bit of corresponding models when drilling holes of different sizes, and cannot quickly judge the geological conditions during drilling.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a mining drilling device, including a base, a lifting frame is provided on the upper part of one side of the base, a drilling mechanism is provided on one side of the lifting frame, and a protective mechanism for preventing soil particles and stones from splashing is also provided on the base.

[0006] The drilling mechanism includes a beam plate, a hollow drill rod is rotatably arranged on the upper part of one end of the beam plate away from the lifting frame, and the drilling mechanism also includes a drilling drive mechanism for driving the hollow drill rod to rotate, the lower end of the hollow drill rod is provided with a fixed seat communicated with the interior thereof, the outer wall of the fixed seat is equidistantly and laterally slidably interspersed with an L-shaped drill bit, the drilling end of the L-shaped drill bit is lower than the bottom of the fixed seat, the upper end of the hollow drill rod is rotatably provided with a handle, the lower end of the handle is located in the hollow drill rod and connected to a limiting shaft, the lower end of the limiting shaft is connected to an adjusting screw, the lower end of the adjusting screw extends into the fixed seat, and the outer part of the adjusting screw is screwed with a movable plate through a thread, and a plurality of adjusting rods corresponding to each L-shaped drill bit are equidistantly hinged on the lower part of the movable plate, the end of the adjusting rod away from the movable plate is hinged to one end of the L-shaped drill bit corresponding thereto, and the lower end of the adjusting screw is connected to an observation mechanism for detecting geological conditions at different positions.

[0007] Preferably, the lifting frame includes a concave frame arranged on the upper part of the base, a lifting servo motor is installed on the top of the concave frame, the output shaft of the lifting servo motor is located at the inner side of the concave frame and is vertically connected to a lifting screw, the outside of the lifting screw is screwed to a limit seat through a thread, and one end of the beam plate away from the hollow drill rod is connected to one side of the limit seat.

[0008] Preferably, the drilling drive mechanism includes a slave gear arranged outside the hollow drill rod and located above the beam plate, and a driving servo motor installed at the bottom of the beam plate near the hollow drill rod, and the output shaft of the driving servo motor is connected to the main gear, and the main gear is meshed with the slave gear.

[0009] Preferably, the observation mechanism includes a fixed plate connected to the lower end of the adjusting screw, and movable shafts are longitudinally slidably inserted in the upper parts of both sides of the fixed plate, and the lower ends of the two movable shafts are connected to limit bars, and a night vision camera is connected between the lower ends of the two limit bars. The outsides of the two movable shafts located below the fixed plate are sleeved with springs, and the two ends of the springs are respectively connected to the upper part of the limit bar and the lower part of the fixed plate, and the upper ends of the two movable shafts are connected to magnetic blocks, and the upper parts of both sides of the fixed plate are connected to electromagnets corresponding to the magnetic blocks, and the movable shafts longitudinally slide through the electromagnets, and a connecting rod is hinged at the bottom of one of the limit bars, and a sealing plate is hinged at the end of the connecting rod away from the limit bar.

[0010] Preferably, an opening groove corresponding to the night vision camera is provided at the bottom of the fixing seat, a storage groove is provided on one side of the inner part of the opening groove, the sealing plate is laterally slidably arranged in the storage groove, a limiting groove corresponding to the connecting rod is provided on the inner upper side of the fixing seat, and the connecting rod slides through the limiting groove.

[0011] Preferably, the suction force of the electromagnet on the magnetic block is greater than the elastic force of the spring. After the electromagnet absorbs the magnetic block, the night vision camera is exactly located at the position of the opening slot, and the sealing plate just slides completely into the storage slot. When the spring is at its original length, the night vision camera is away from the position of the opening slot, and the sealing plate just seals the opening slot.

[0012] Preferably, the protection mechanism includes a protection servo motor installed on the side of the base away from the lifting frame, the output shaft of the protection servo motor is located in the base and connected to a threaded rod, the outside of the threaded rod is screwed with a concave plate through a thread, and two through grooves corresponding to the two ends of the concave plate are provided on the side of the base away from the protection servo motor, the two ends of the concave plate respectively slide horizontally through the two through grooves and are hinged with a movable plate, hydraulic cylinders are installed on both sides of the inside of the concave plate, the output shaft of the hydraulic cylinder slides horizontally through the through groove and is hinged with a driving rod, and the end of the driving rod away from the output shaft of the hydraulic cylinder is hinged to one side of the movable plate.

[0013] Preferably, the inner width of the concave plate is greater than the outer diameter distance between each L-shaped drill bit, and when the two movable plates are respectively perpendicular to the two ends of the concave plate, the two movable plates just block the space between the two ends of the concave plate.

[0014] The present invention provides a mining drilling device, which has the following beneficial effects compared with the prior art:

[0015] 1. The mining drilling equipment can adjust the spacing between each L-shaped drill bit by turning the handle, so that holes of different sizes can be drilled according to needs without replacing the drill bit of corresponding size and model, thereby saving time and improving the efficiency of mining drilling.

[0016] 2. The mine uses drilling equipment. When the equipment drills to a certain extent and it is necessary to understand the geological conditions of the location, the night vision camera can be moved to the opening slot of the fixed seat by turning on the power of the electromagnet. At the same time, the opening slot will be opened, so that the night vision camera can detect the geological conditions of the location. When the detection is completed, the power of the electromagnet is turned off to seal the opening slot, which plays a dust-proof role for the night vision camera. The night vision camera will move upward so that it will not be too close to the inner wall of the fixed seat, avoiding damage to the night vision camera caused by excessive temperature of the inner wall of the fixed seat.

[0017] 3. The mining drilling equipment can open the protective mechanism during drilling to surround the fixed seat to prevent soil particles or stones from splashing and injuring personnel, thus playing a role of safety protection. After drilling is completed, the protective servo motor can be used to store the protective mechanism to reduce the space it occupies. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention;

[0019] Figure 2 It is a structural schematic diagram of the drilling mechanism of the present invention;

[0020] Figure 3 It is a structural schematic diagram of the observation mechanism of the present invention when it is not in operation;

[0021] Figure 4 It is a structural schematic diagram of the observation mechanism of the present invention in a working state;

[0022] Figure 5 For the present invention Figure 3 A partial enlarged schematic diagram of the structure at A in the middle;

[0023] Figure 6 It is a structural schematic diagram of the protection mechanism of the present invention.

[0024] In the figure: 1. base; 2. lifting frame; 21. concave frame; 22. lifting screw; 23. limit seat; 24. lifting servo motor; 3. drilling mechanism; 31. beam plate; 32. hollow drill rod; 33. drilling drive mechanism; 331. slave gear; 332. drive servo motor; 333. main gear; 34. fixed seat; 341. opening slot; 342. storage slot; 343. limit slot; 35. L-shaped drill bit; 36. handle; 37. limit shaft; 38. Adjusting screw; 39. Observation mechanism; 391. Fixed plate; 392. Moving shaft; 393. Limiting strip; 394. Night vision camera; 395. Spring; 396. Electromagnet; 397. Magnetic block; 398. Connecting rod; 399. Sealing plate; 310. Moving plate; 311. Adjusting rod; 4. Protective mechanism; 41. Protective servo motor; 42. Threaded rod; 43. Concave plate; 44. Movable plate; 45. Hydraulic cylinder; 46. Driving rod; 47. Through groove. DETAILED DESCRIPTION

[0025] 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.

[0026] See also Figure 1-Figure 6 , the present invention provides three technical solutions:

[0027] Embodiment 1

[0028] See also Figure 1 In an embodiment of the present invention, a mining drilling device includes a base 1, a lifting frame 2 is arranged on the upper part of one side of the base 1, a drilling mechanism 3 is arranged on one side of the lifting frame 2, and a protective mechanism 4 for preventing soil particles and stones from splashing is also arranged on the base 1.

[0029] See also Figure 2-Figure 3In the embodiment of the present invention, the drilling mechanism 3 includes a beam plate 31, and a hollow drill rod 32 is rotatably provided on the upper part of one end of the beam plate 31 away from the lifting frame 2, and the drilling mechanism 3 also includes a drilling driving mechanism 33 for driving the hollow drill rod 32 to rotate, and a fixing seat 34 communicating with the interior thereof is provided at the lower end of the hollow drill rod 32, and an L-shaped drill bit 35 is equidistantly and laterally slidably inserted into the outer wall of the fixing seat 34, and the drilling end of the L-shaped drill bit 35 is lower than the bottom of the fixing seat 34, and a handle 36 is rotatably provided on the upper end of the hollow drill rod 32, and the lower end of the handle 36 is located A limit shaft 37 is connected inside the hollow drill rod 32, and an adjusting screw 38 is connected to the lower end of the limit shaft 37. The lower end of the adjusting screw 38 extends into the fixed seat 34, and a movable plate 310 is screwed to the outside of the adjusting screw 38 through a thread. A plurality of adjusting rods 311 corresponding to each L-shaped drill bit 35 are hinged at equal intervals at the lower part of the movable plate 310. One end of the adjusting rod 311 away from the movable plate 310 is hinged to one end of the L-shaped drill bit 35 corresponding thereto, and the lower end of the adjusting screw 38 is connected to an observation mechanism 39 for detecting geological conditions at different positions.

[0030] In the above scheme: when it is necessary to adjust the diameter of the drilled hole, the handle 36 is rotated to drive the limit shaft 37 to rotate, the limit shaft 37 drives the adjusting screw 38 to rotate, the adjusting screw 38 drives the moving plate 310 to move, and the moving plate 310 will cause the adjusting rod 311 to drive the L-shaped drill bit 35 to move, and adjust the spacing between each L-shaped drill bit 35 to the required size.

[0031] For further information, see Figure 1 In the embodiment of the present invention, the lifting frame 2 includes a concave frame 21 arranged on the upper part of the base 1, and a lifting servo motor 24 is installed on the top of the concave frame 21. The output shaft of the lifting servo motor 24 is located at the inner side of the concave frame 21 and is vertically connected with a lifting screw 22. The outer part of the lifting screw 22 is screwed with a limit seat 23 through a thread, and one end of the beam plate 31 away from the hollow drill rod 32 is connected to one side of the limit seat 23. The lifting servo motor 24 drives the lifting screw 22 to rotate, and the lifting screw 22 drives the limit seat 23 to move downward, and the limit seat 23 drives the drilling mechanism 3 to move downward, so that the equipment completes the drilling work.

[0032] For further information, see Figure 2In the embodiment of the present invention, the drilling drive mechanism 33 includes a slave gear 331 arranged outside the hollow drill rod 32 and located above the beam plate 31, and a driving servo motor 332 installed at the bottom of the beam plate 31 near the hollow drill rod 32. The output shaft of the driving servo motor 332 is connected to the main gear 333, and the main gear 333 is meshed with the slave gear 331 to move the device to the position where drilling is required. Then the servo motor 332 is driven to drive the main gear 333 to rotate, and the main gear 333 drives the slave gear 331 meshed with it to rotate, and the slave gear 331 drives the hollow drill rod 32 to rotate, and the hollow drill rod 32 will drive the fixed seat 34 to rotate, and then drive the L-shaped drill bit 35 to rotate, and the L-shaped drill bit 35 drills the land rock.

[0033] The second embodiment is different from the first embodiment in that:

[0034] See also Figure 3-Figure 5 In the embodiment of the present invention, the observation mechanism 39 includes a fixed plate 391 connected to the lower end of the adjusting screw 38, and the upper parts of both sides of the fixed plate 391 are longitudinally slidably interspersed with movable shafts 392, and the lower ends of the two movable shafts 392 are connected to limit bars 393, and a night vision camera 394 is connected between the lower ends of the two limit bars 393. The outsides of the two movable shafts 392 are located below the fixed plate 391 and are sleeved with springs 395. The two ends of the spring 395 are respectively connected to the upper part of the limit bar 393 and the lower part of the fixed plate 391, and the upper ends of the two movable shafts 392 are connected to magnetic blocks 397. The upper parts of both sides of the fixed plate 391 are connected to electromagnets 396 corresponding to the magnetic blocks 397. The movable shaft 392 longitudinally slides through the electromagnet 396, and a connecting rod 398 is hinged at the bottom of one of the limit bars 393, and a sealing plate 399 is hinged at one end of the connecting rod 398 away from the limit bar 393.

[0035] See also Figure 3-Figure 5 In the embodiment of the present invention, an opening groove 341 corresponding to the night vision camera 394 is provided at the bottom of the fixing seat 34, a receiving groove 342 is provided on one side of the inner part of the opening groove 341, a sealing plate 399 is horizontally slidably arranged in the receiving groove 342, and a limiting groove 343 corresponding to the connecting rod 398 is provided on the inner upper side of the fixing seat 34, and the connecting rod 398 slides through the limiting groove 343.

[0036] See also Figure 3-Figure 5 In the embodiment of the present invention, the suction force of the electromagnet 396 on the magnetic block 397 is greater than the elastic force of the spring 395. After the electromagnet 396 absorbs the magnetic block 397, the night vision camera 394 is exactly located at the position of the opening groove 341, and the sealing plate 399 just slides completely into the storage groove 342. When the spring 395 is at its original length, the night vision camera 394 is away from the position of the opening groove 341, and the sealing plate 399 just seals the opening groove 341.

[0037] In the above scheme: after drilling into a certain position, when it is necessary to understand the geological conditions of the position, the power supply of the electromagnet 396 is turned on, and the electromagnet 396 will adsorb the magnetic block 397. Under the elasticity of the spring 395, the movable shaft 392 will drive the night vision camera 394 to move downward. When moving downward, the limit bar 393 will make the connecting rod 398 drive the sealing plate 399 to slide in the storage groove 342 on the fixing seat 34. When the night vision camera 394 moves to the position of the opening groove 341, the sealing plate 399 just opens the opening groove 341. At this time, the night vision camera 394 can detect the geological conditions of the location, and then be connected to the night vision camera 394 through a computer. The night vision camera 394 transmits the image to the computer, and understands the geological conditions of the location through the computer. When the detection is completed, turn off the power of the electromagnet 396, and the spring 395 will reset the moving shaft 392, so that the night vision camera 394 moves upward, and the sealing plate 399 will seal the opening groove 341, which plays a dust-proof role for the night vision camera 394. At the same time, the temperature of the night vision camera 394 will not be too high.

[0038] Embodiment 3 is different from Embodiment 1 in that:

[0039] See also Figure 6 In the embodiment of the present invention, the protection mechanism 4 includes a protection servo motor 41 installed on the side of the base 1 away from the lifting frame 2. The output shaft of the protection servo motor 41 is located in the base 1 and is connected to a threaded rod 42. The outer side of the threaded rod 42 is screwed with a concave plate 43 through a thread. Two through grooves 47 corresponding to the two ends of the concave plate 43 are provided on the side of the base 1 away from the protection servo motor 41. The two ends of the concave plate 43 slide horizontally through the two through grooves 47 and are hinged with a movable plate 44. Hydraulic cylinders 45 are installed on both sides of the inside of the concave plate 43. The output shaft of the hydraulic cylinder 45 slides horizontally through the through groove 47 and is hinged with a driving rod 46. The end of the driving rod 46 away from the output shaft of the hydraulic cylinder 45 is hinged to one side of the movable plate 44.

[0040] In the above scheme: when drilling, the hydraulic cylinder 45 causes the driving rod 46 to drive the movable plate 44 to rotate so that it is flush with the concave plate 43. After being flush, the protective servo motor 41 drives the threaded rod 42 to rotate, and the threaded rod 42 drives the concave plate 43 to move, so that the concave plate 43 surrounds the fixed seat 34. After being surrounded, the hydraulic cylinder 45 again causes the driving rod 46 to drive the movable plate 44 to rotate, so that the two movable plates 44 close the position on one side of the fixed seat 34. In this way, when drilling, the concave plate 43 and the movable plate 44 will block the splashing soil particles and stones to prevent injuries. When not working, the concave plate 43 and the movable plate 44 can be stored by the work of the protective servo motor 41 and the hydraulic cylinder 45 to reduce the occupied space.

[0041] For further information, see Figure 6 In the embodiment of the present invention, the inner width of the concave plate 43 is greater than the outer diameter distance between each L-shaped drill bit 35. When the two movable plates 44 are respectively perpendicular to the two ends of the concave plate 43, the two movable plates 44 just block the space between the two ends of the concave plate 43, so that the concave plate 43 and the two movable plates 44 can surround each L-shaped drill bit 35, thereby preventing soil particles and stones from splashing.

[0042] Working principle: Move the device to the position where drilling is required, and then drive the servo motor 332 to drive the main gear 333 to rotate, the main gear 333 drives the slave gear 331 meshing with it to rotate, the slave gear 331 drives the hollow drill rod 32 to rotate, the hollow drill rod 32 will drive the fixed seat 34 to rotate, and then drive the L-shaped drill bit 35 to rotate, the L-shaped drill bit 35 drills the land and rock, and at the same time the lifting servo motor 24 drives the lifting screw 22 to rotate, the lifting screw 22 drives the limit seat 23 to move downward, and the limit seat 23 drives the drilling mechanism 3 to move downward to complete the drilling work;

[0043] When the diameter of the drilled hole needs to be adjusted, the handle 36 is turned to drive the limit shaft 37 to rotate, the limit shaft 37 drives the adjusting screw 38 to rotate, the adjusting screw 38 drives the moving plate 310 to move, and the moving plate 310 causes the adjusting rod 311 to drive the L-shaped drill bit 35 to move, and the spacing between each L-shaped drill bit 35 is adjusted to the required size;

[0044] When drilling to a certain position and needing to understand the geological conditions of the position, the power of electromagnet 396 is turned on, and electromagnet 396 will adsorb magnetic block 397. Under the elasticity of spring 395, movable shaft 392 will drive night vision camera 394 to move downward. When moving downward, limit bar 393 will make connecting rod 398 drive sealing plate 399 to slide in storage groove 342 on fixing seat 34. When night vision camera 394 moves to the position of opening groove 341, sealing plate 399 will just open opening groove 341. At this time, night vision camera 394 can be seen from above. The night vision camera 394 can detect the geological conditions of the location, and then connect to the night vision camera 394 through a computer. The night vision camera 394 transmits the picture to the computer, and the geological conditions of the location are understood through the computer. When the detection is completed, the power supply of the electromagnet 396 is turned off, and the spring 395 will reset the moving shaft 392, so that the night vision camera 394 moves upward, and the sealing plate 399 will seal the opening groove 341 to prevent dust from reaching the night vision camera 394, and the temperature of the night vision camera 394 will not be too high.

[0045] When drilling, the hydraulic cylinder 45 causes the driving rod 46 to drive the movable plate 44 to rotate so that it is flush with the concave plate 43. After being flush, the protective servo motor 41 drives the threaded rod 42 to rotate, and the threaded rod 42 drives the concave plate 43 to move, so that the concave plate 43 surrounds the fixed seat 34. After being surrounded, the hydraulic cylinder 45 again causes the driving rod 46 to drive the movable plate 44 to rotate, so that the two movable plates 44 close the position on one side of the fixed seat 34. In this way, when drilling, the concave plate 43 and the movable plate 44 will block the splashing soil particles and stones to prevent injuries. When not working, the concave plate 43 and the movable plate 44 can be stored by the operation of the protective servo motor 41 and the hydraulic cylinder 45 to reduce the occupied space.

[0046] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

Claims

1. A mining drilling device, comprising a base (1), characterized in that: A lifting frame (2) is provided on the upper part of one side of the base (1), a drilling mechanism (3) is provided on one side of the lifting frame (2), and a protective mechanism (4) for preventing soil particles and stones from splashing is also provided on the base (1); The drilling mechanism (3) comprises a beam plate (31), a hollow drill rod (32) is rotatably provided through the upper part of one end of the beam plate (31) away from the lifting frame (2), and the drilling mechanism (3) also comprises a drilling driving mechanism (33) for driving the hollow drill rod (32) to rotate, a fixing seat (34) which is in communication with the interior of the hollow drill rod (32) is provided at the lower end of the hollow drill rod (32), an L-shaped drill bit (35) is equidistantly and laterally slidably inserted through the outer wall of the fixing seat (34), a drilling end of the L-shaped drill bit (35) is lower than the bottom of the fixing seat (34), a handle (36) is rotatably provided at the upper end of the hollow drill rod (32), and the lower end of the handle (36) is located in the hollow A limit shaft (37) is connected inside the core drill rod (32), and an adjusting screw (38) is connected to the lower end of the limit shaft (37). The lower end of the adjusting screw (38) extends into the fixed seat (34), and a movable plate (310) is screwed to the outside of the adjusting screw (38) through a thread. A plurality of adjusting rods (311) corresponding to each L-shaped drill bit (35) are hinged at equal intervals on the lower part of the movable plate (310), and one end of the adjusting rod (311) away from the movable plate (310) is hinged to one end of the L-shaped drill bit (35) corresponding thereto, and the lower end of the adjusting screw (38) is connected to an observation mechanism (39) for detecting geological conditions at different positions.

2. A mining drilling device according to claim 1, characterized in that: The lifting frame (2) comprises a concave frame (21) arranged on the upper part of the base (1); a lifting servo motor (24) is installed on the top of the concave frame (21); the output shaft of the lifting servo motor (24) is located at the inner side of the concave frame (21) and is vertically connected to a lifting screw rod (22); the outer part of the lifting screw rod (22) is screwed to a limit seat (23) through a thread; and one end of the beam plate (31) away from the hollow drill rod (32) is connected to one side of the limit seat (23).

3. The mining drilling equipment according to claim 1, characterized in that: The drilling drive mechanism (33) comprises a slave gear (331) arranged outside the hollow drill rod (32) and located above the beam plate (31), and a driving servo motor (332) installed at the bottom of the beam plate (31) near the hollow drill rod (32), wherein the output shaft of the driving servo motor (332) is connected to a main gear (333), and the main gear (333) is meshed with the slave gear (331).

4. The mining drilling equipment according to claim 1, characterized in that: The observation mechanism (39) comprises a fixed plate (391) connected to the lower end of the adjusting screw (38), and movable shafts (392) are longitudinally slidably inserted into the upper parts of both sides of the fixed plate (391), and the lower ends of the two movable shafts (392) are connected to limit bars (393), and a night vision camera (394) is connected between the lower ends of the two limit bars (393), and the outer parts of the two movable shafts (392) are located below the fixed plate (391) and are sleeved with springs (395), and the two ends of the springs (395) are respectively connected to the limit bars. The upper part of the movable shaft (393) is connected to the lower part of the fixed plate (391), the upper ends of the two movable shafts (392) are connected to magnetic blocks (397), the upper parts of both sides of the fixed plate (391) are connected to electromagnets (396) corresponding to the magnetic blocks (397), the movable shaft (392) slides longitudinally through the electromagnet (396), and the bottom of one of the limit bars (393) is hinged with a connecting rod (398), and the end of the connecting rod (398) away from the limit bar (393) is hinged with a sealing plate (399).

5. A mining drilling device according to claim 4, characterized in that: The bottom of the fixing seat (34) is provided with an opening groove (341) corresponding to the night vision camera (394), a storage groove (342) is provided on one side inside the opening groove (341), the sealing plate (399) is laterally slidably arranged in the storage groove (342), and a limiting groove (343) corresponding to the connecting rod (398) is provided on the upper side inside the fixing seat (34), and the connecting rod (398) slides through the limiting groove (343).

6. The mining drilling equipment according to claim 4, characterized in that: The suction force of the electromagnet (396) on the magnetic block (397) is greater than the elastic force of the spring (395). After the electromagnet (396) adsorbs the magnetic block (397), the night vision camera (394) is exactly located at the position of the opening groove (341), and the sealing plate (399) just slides completely into the storage groove (342). When the spring (395) is at its original length, the night vision camera (394) is away from the position of the opening groove (341), and the sealing plate (399) just seals the opening groove (341).

7. The mining drilling equipment according to claim 1, characterized in that: The protection mechanism (4) comprises a protection servo motor (41) installed on a side of the base (1) away from the lifting frame (2); the output shaft of the protection servo motor (41) is located in the base (1) and is connected to a threaded rod (42); the outer portion of the threaded rod (42) is screwed with a concave plate (43) by means of a thread; two through grooves (47) corresponding to the two ends of the concave plate (43) are provided on the side of the base (1) away from the protection servo motor (41); the two ends of the concave plate (43) respectively slide transversely through the two through grooves (47) and are hinged to a movable plate (44); hydraulic cylinders (45) are installed on both sides of the interior of the concave plate (43); the output shaft of the hydraulic cylinder (45) slides transversely through the through groove (47) and is hinged to a driving rod (46); the end of the driving rod (46) away from the output shaft of the hydraulic cylinder (45) is hinged to one side of the movable plate (44).

8. The mining drilling equipment according to claim 7, characterized in that: The inner width of the concave plate (43) is greater than the outer diameter distance between each L-shaped drill bit (35), and when the two movable plates (44) are respectively perpendicular to the two ends of the concave plate (43), the two movable plates (44) just block the space between the two ends of the concave plate (43).

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