A device for opening a blasting hole in a mine

Abstract

The present invention discloses a technology related to the field of mine blasting, specifically a mine blasting hole opening device, which includes a concave lifting seat. The left and right sides and the rear side of the concave lifting seat are fixedly installed with first hydraulic cylinders. The lower end of the first hydraulic cylinder is fixedly installed with a support base. Below the inner side of the concave lifting seat, there is an installation bottom plate. The upper end of the installation bottom plate is symmetrically and fixedly connected with L-shaped support plates on the left and right. On the relatively far side of the two L-shaped support plates, there is a cylinder fixedly connected. The beneficial effect of the present invention is that when hole opening operation is required, first move the concave lifting seat above or near the position to be opened. By contracting the piston rod of the first hydraulic cylinder, the concave lifting seat moves downward for a certain distance. The concave lifting seat drives the L-shaped support plates, the installation bottom plate, the hole opening mechanism, the protective cover, and the square bellows to move downward, so that the square bellows covers the position to be opened.

Description

Technical Field

[0001] The present invention relates to the technical field of mine blasting, and specifically relates to a mine blasting hole opening device. Background Technique

[0002] When mining a mine, blasting means are usually used to blast the ore, so as to facilitate the collection of the ore. In the process of mine production, the excavation operation not only consumes the most manpower and material resources and occupies the most funds, but also has the greatest potential for reducing the mining cost. Before blasting a mine, it is usually necessary to drill the ore through a hole opening device, and then put explosives into the drilled holes for blasting operations. There are certain defects in the existing mine hole opening devices during the hole opening operation. The existing hole opening devices can basically only perform parallel drilling or vertical drilling singly, while in the actual process of mine blasting, different directions of hole opening are required according to different environments. Some need to perform inclined drilling, but the angle adjustment of the drill bit of the existing hole opening device cannot be adjusted. Some can be adjusted, but the adjustment method is very inconvenient, and the stability is poor during the inclined hole opening process, resulting in low hole opening efficiency. Summary of the Invention

[0003] The purpose of the present invention is to provide a mine blasting hole opening device to solve the problems raised in the above background technique.

[0004] To achieve the above purpose, the present invention provides the following technical solution: A mine blasting hole opening device, including a concave lifting seat, the left and right sides and the rear side of the concave lifting seat are fixedly installed with first hydraulic cylinders, the lower ends of the first hydraulic cylinders are fixedly installed with support bases, and an installation base plate is arranged below the inner side of the concave lifting seat. The upper end of the installation base plate is symmetrically and fixedly connected with L-shaped support plates on the left and right. One side of the two L-shaped support plates facing away from each other is fixedly connected with a cylinder. The two L-shaped support plates are respectively rotatably connected to the two side plates of the concave lifting seat through the two cylinders. One end of the cylinder away from the L-shaped support plate passes through the side wall of the concave lifting seat and is fixedly sleeved with a rotating crown gear. The two outer sides of the concave lifting seat are symmetrically and fixedly connected with concave plates on the left and right. One of the cylinders is driven by the motor shaft of a synchronous motor fixedly installed on one of the concave plates;

[0005] Locking mechanisms for locking the rotating crown gear are symmetrically installed on the left and right of the two outer sides of the concave lifting seat. An opening mechanism is installed on the installation base plate, a transmission mechanism for driving the opening mechanism to move up and down is installed inside the installation base plate, and a protective cover is fixedly installed at the lower end of the installation base plate.

[0006] Preferably, annular grooves are symmetrically formed on the left and right sides of the inner side surface of the concave lifting seat. Sector-shaped blocks are symmetrically and fixedly connected to the upper and lower sides of the relatively far-away sides of the two L-shaped support plates. The sector-shaped blocks are rotatably connected to the annular grooves, and the cylinder is arranged between the two sector-shaped blocks.

[0007] Preferably, sliding grooves are symmetrically formed on the upper and lower sides of the side surface of the concave plate. The locking mechanism includes a locking crown gear clamped on the side surface of the rotating crown gear. Sliders are symmetrically and fixedly connected to the upper and lower sides of the cylindrical surface of the locking crown gear. The sliders are slidably connected to the sliding grooves in the left and right directions. Fixed ear blocks are symmetrically and fixedly connected to the front and rear sides of the cylindrical surface of the locking crown gear. A second hydraulic cylinder is fixedly installed on the side surface of the fixed ear block, and the second hydraulic cylinder is fixedly installed on the side surface of the concave lifting seat.

[0008] Preferably, transparent observation windows are installed on the front and rear sides of the protective cover. A square corrugated pipe is fixedly installed at the lower end of the protective cover. The square corrugated pipe is made of rubber material. Spraying heads and dust suction heads are symmetrically installed on the left and right sides of the protective cover respectively. The spraying heads are connected to the output end of the water pump through flexible water pipes, and the dust suction heads are connected to the air extraction device through flexible connecting pipes.

[0009] Preferably, a rotating groove is formed through the upper end of the installation base plate from top to bottom. An activity groove is formed on the side surface of the rotating groove. The transmission mechanism includes a rotating seat rotatably installed in the rotating groove. An external tooth ring is fixedly sleeved on the outer side of the rotating seat. A driving gear is meshed with the side surface of the external tooth ring. The driving gear is driven by the output shaft of a servo motor fixedly installed on the upper end of the installation base plate. The external tooth ring and the driving gear are both installed in the activity groove.

[0010] Preferably, a regular polygon groove is formed through the upper end of the rotating seat from top to bottom. The hole opening mechanism includes a regular polygon column inserted through the regular polygon groove. A circular groove is recessed upward at the lower end of the regular polygon column. Guide grooves are symmetrically and externally formed on the left and right sides of the inner side of the circular groove. The lower end of the regular polygon column is fixedly connected with a hole opening drill barrel;

[0011] The upper end of the regular polygon column is fixedly connected with a threaded column. An internal threaded sleeve is sleeved on the threaded column. The internal threaded sleeve is threadedly connected with the threaded column. Support brackets are symmetrically and fixedly connected to the left and right sides of the inner side surface of the internal threaded sleeve. The two support brackets are respectively fixedly connected to the upper ends of the two L-shaped support plates.

[0012] Preferably, a material discharging mechanism is installed in the circular groove of the regular polygon column. The material discharging mechanism includes a lifting sliding seat horizontally inserted into the two guide grooves. An annular limiting seat is sleeved on the outer side of the regular polygon column. The two ends of the lifting sliding seat respectively pass through the two guide grooves and are fixedly connected to the inner side of the annular limiting seat. A support pipe is fixedly inserted at the lower end of the lifting sliding seat. The lower end of the support pipe extends downward into the inner cavity of the hole opening drill barrel and is fixedly connected with a material discharging head. The material discharging head is slidably connected to the inner cavity of the hole opening drill barrel in the up and down direction.

[0013] Preferably, a water inlet mechanism is installed on the annular limiting seat. The water inlet mechanism includes an annular water passing seat sleeved outside the annular limiting seat. An annular water passing cavity is formed inside the annular water passing seat. A convex portion is protruded on the side surface of the annular limiting seat. The convex portion on the side surface of the annular limiting seat is clamped with the annular water passing cavity. The outer side of the annular limiting seat is in rotational contact with the inner side of the annular water passing seat. A water inlet pipe is fixedly inserted on the outer side surface of the annular water passing seat. The water inlet pipe is communicated with the annular water passing cavity. One end of the water inlet pipe is connected with a hose through a pipe joint. The other end of the hose is connected with the output end of a water pump through a pipe joint;

[0014] A water inlet groove is formed through the side surface of the lifting sliding seat. Through grooves are symmetrically formed through the left and right sides of the side surface of the annular limiting seat. The two through grooves are respectively communicated with the two ends of the water inlet groove. The upper end of the support pipe extends upward to the bottom of the water inlet groove, and the inner cavity of the support pipe is communicated with the water inlet groove;

[0015] A circular cavity is formed inside the blanking head. Water outlet grooves are annularly arrayed downward at the bottom of the circular cavity. The lower end of the support pipe extends downward to the bottom of the circular cavity. Water outlet notches are symmetrically formed on the left and right sides of the lower end of the support pipe. The inner cavity of the support pipe is communicated with the circular cavity through the water outlet notches.

[0016] Preferably, a docking mechanism is installed on the side surface of the annular water passing seat. The docking mechanism includes a docking plate fixedly connected to the side surface of the annular water passing seat. Rectangular blocks are symmetrically and fixedly connected to one end of the docking plate away from the annular water passing seat. A lifting groove is formed on the side surface of an L-shaped support plate close to the docking plate. Vertical grooves are symmetrically formed inside the lifting groove. The docking plate is slidably connected up and down with the lifting groove, and the rectangular blocks are slidably connected up and down with the vertical grooves;

[0017] A concave contraction groove is recessed downward at the upper end of the docking plate. A movable plate is slidably connected inside the concave contraction groove. Extension plates are symmetrically protruded upward at the upper end of the movable plate. The upper ends of the two extension plates respectively penetrate through the two ends of the concave contraction groove and extend to the outside. An elastic sheet is installed on one side of an extension plate at the upper end of the movable plate. One side of the elastic sheet abuts against the inner side of the concave contraction groove. A docking block is fixedly connected to the upper end of one side of the extension plate at the upper end of the movable plate, and a pressing block is fixedly connected to the upper end of the other side of the extension plate. The upper ends of the docking block and the pressing block are both in a slope shape. An annular transmission plate is fixedly sleeved on the upper end of the regular polygon column above the docking block.

[0018] Preferably, a pushing mechanism is installed above the docking mechanism. The pushing mechanism includes a pressing block arranged above the pressing block. A third hydraulic cylinder is fixedly installed at the upper end of the L-shaped support plate. The piston rod of the third hydraulic cylinder passes through the L-shaped support plate downward and is fixedly connected to the upper end of the pressing block.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows: The structure of the present invention is reasonably arranged and has strong functionality, with the following advantages:

[0020] 1. When hole-opening operation is required, first move the concave lifting seat above or near the position to be hole-opened. By the contraction of the piston rod of the first hydraulic cylinder, the concave lifting seat moves downward by a certain distance. The concave lifting seat drives the L-shaped support plate, the mounting base plate, the hole-opening mechanism, the protective cover, and the square corrugated pipe to move downward, so that the square corrugated pipe covers the position to be hole-opened. At the same time, the hole-opening drill barrel in the hole-opening mechanism is aligned with the position to be hole-opened. The protective cover and the square corrugated pipe provided can effectively prevent the flying of crushed stones during the hole-opening process and prevent dust from spreading in the air.

[0021] 2. Drive the hole-opening mechanism to rotate through the transmission mechanism, so that the regular polygon column drives the hole-opening drill barrel to move downward while rotating, thereby enabling the hole-opening drill barrel to perform hole-opening operation; at this time, pump water from the water tank through the water pump, convey the water to the spray head through the flexible water pipe, and the water sprays out along the spray head for dust reduction; perform air extraction through the air extraction device, so that the dust suction head sucks away the dust generated during the hole-opening process; at the same time, the water pump conveys the water through the hose and the water inlet pipe to the annular water passage cavity of the annular water passage seat, and the water flows downward along the through groove, the water inlet groove, and the inner cavity of the support pipe. The water flows into the circular cavity of the material discharging head through the water outlet notch at the lower end of the support pipe, and then flows downward along the water outlet groove at the lower end of the material discharging head and enters the inner cavity of the hole-opening drill barrel. The water flows downward along the inner cavity of the hole-opening drill barrel, thereby performing dust reduction on the dust drilled during the work of the hole-opening drill barrel.

[0022] 3. When it is necessary to move the hole-opening drill barrel out of the hole after drilling is completed, drive the hole-opening mechanism to reverse through the transmission mechanism, so that the regular polygon column drives the hole-opening drill barrel to move upward while rotating, thereby enabling the hole-opening drill barrel to move upward out of the hole.

[0023] 4. When it is necessary to discharge the stones in the hole-opening drill barrel, the piston rod of the third hydraulic cylinder extends downward to drive the pressing block to move downward. The pressing block pushes the extrusion block to move, the extrusion block drives the extension plate to move, the extension plate drives the movable plate to move, and at the same time the movable plate drives another extension plate to move, so that the docking block is separated from the annular transmission plate; drive the entire docking mechanism to move downward through the pressing block. At this time, the docking mechanism drives the annular water passage seat, the annular limiting seat, and the lifting sliding seat to move downward. At the same time, the lifting sliding seat drives the material discharging head to move downward through the support pipe, so that the material discharging head moves downward along the inner cavity of the hole-opening drill barrel, and the stones in the inner cavity of the hole-opening drill barrel are pushed out by the material discharging head, thus facilitating the next hole-opening operation, and the method of discharging the stones in the hole-opening drill barrel is simple and convenient; at the same time, the water flows downward along the water outlet groove at the lower end of the material discharging head and enters the inner cavity of the hole-opening drill barrel, and the inner cavity of the hole-opening drill barrel is flushed by the water, further cleaning the stones and the like in the inner cavity of the hole-opening drill barrel, greatly improving the cleaning effect.

[0024] 5. When it is necessary to adjust the opening angle of the opening mechanism, first separate the locking crown gear in the locking mechanism from the rotating crown gear. At this time, the motor shaft of the synchronous motor drives the cylinder to rotate, the cylinder drives the L-shaped support plate to rotate, the L-shaped support plate drives the mounting base plate to swing, and the mounting base drives the opening mechanism to rotate, adjusting the inclination angle of the opening drill tube, so as to realize the adjustment of the opening angle of the opening mechanism. The adjustment method is simple and convenient. After the adjustment is completed, make the locking crown gear in the locking mechanism engage with the rotating crown gear, so as to lock the locking crown gear. At this time, the cylinder cannot rotate either, and at the same time, the L-shaped support plate and the mounting base plate will not rotate either, and then stable opening operations can be carried out. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a three-dimensional structure diagram of the opening device for mine blasting holes of the present invention;

[0026] Figure 2 is a cross-sectional view of the structure of the opening device for mine blasting holes of the present invention;

[0027] Figure 3 is an exploded view of the structure of the opening device for mine blasting holes of the present invention;

[0028] Figure 4 is a cross-sectional view of the structures of the opening mechanism, transmission mechanism, material discharging mechanism, water inlet mechanism and docking mechanism of the present invention;

[0029] Figure 5 is an exploded view of the structures of the mounting base plate, opening mechanism, material discharging mechanism, docking mechanism and pushing mechanism of the present invention;

[0030] Figure 6 is an exploded view of the structures of the mounting base plate, transmission mechanism, water inlet mechanism and docking mechanism of the present invention;

[0031] Figure 7 is an exploded view of the structures of the transmission mechanism, opening mechanism, material discharging mechanism, water inlet mechanism and docking mechanism of the present invention;

[0032] Figure 8 is a cross-sectional view of the structures of the support pipe and the material discharging head of the present invention;

[0033] Figure 9 is a schematic diagram of the structure after the docking mechanism and the annular transmission plate are engaged of the present invention.

[0034] In the figure: 1. Concave lifting seat; 11. First hydraulic cylinder; 12. Support base; 13. Annular groove; 14. Concave plate; 15. Chute; 2. Installation base plate; 21. Rotation groove; 22. Activity groove; 23. L-shaped support plate; 24. Lifting groove; 25. Internal thread sleeve; 26. Cylinder; 27. Rotating crown gear; 28. Sector block; 3. Locking crown gear; 31. Slide block; 32. Fixed ear block; 33. Second hydraulic cylinder; 4. Protective cover; 41. Square bellows; 42. Spraying head; 43. Dust suction head; 5. Rotating seat; 51. External tooth ring; 52. Driving gear; 53. Regular polygon column; 54. Circular groove; 55. Guide groove; 56. Drilling barrel; 57. Threaded column; 6. Lifting slide seat; 61. Annular limiting seat; 62. Water inlet groove; 63. Support pipe; 64. Discharging head; 65. Water outlet notch; 66. Water outlet groove; 7. Annular water passing seat; 71. Water inlet pipe; 72. Hose; 73. Annular transmission plate; 8. Docking plate; 81. Concave contraction groove; 82. Movable plate; 83. Elastic sheet; 84. Docking block; 85. Extrusion block; 9. Third hydraulic cylinder; 91. Pressing block. Detailed implementation manners

[0035] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0036] Please refer to Figures 1 to 9 , the present invention provides a technical solution: a device for opening a blasting hole in a mine, including a concave lifting seat 1. The left, right and rear sides of the concave lifting seat 1 are fixedly installed with first hydraulic cylinders 11. The lower ends of the first hydraulic cylinders 11 are fixedly installed with support bases 12. Anti-slip patterns are provided at the lower ends of the support bases 12. The number of the first hydraulic cylinders 11 can be adjusted according to actual situations. An installation base plate 2 is arranged below the inner side of the concave lifting seat 1. The upper ends of the installation base plate 2 are symmetrically and fixedly connected with L-shaped support plates 23 on the left and right. Cylinders 26 are fixedly connected to the relatively far sides of the two L-shaped support plates 23. The two L-shaped support plates 23 are respectively rotationally connected to the two side plates of the concave lifting seat 1 through the two cylinders 26. The ends of the cylinders 26 far from the L-shaped support plates 23 pass through the side walls of the concave lifting seat 1 and are fixedly sleeved with rotating crown gears 27. Concave plates 14 are symmetrically and fixedly connected to the outer sides of the two sides of the concave lifting seat 1. One of the cylinders 26 is driven by the motor shaft of a synchronous motor fixedly installed on one of the concave plates 14;

[0037] On the left and right sides of the outer sides of the concave lifting seat 1, locking mechanisms for locking the rotating crown gear 27 are symmetrically installed. An opening mechanism is installed on the mounting base plate 2, a transmission mechanism for driving the opening mechanism to move up and down is installed inside the mounting base plate 2, and a protective cover 4 is fixedly installed at the lower end of the mounting base plate 2.

[0038] Please refer to Figures 1 to 3 , annular grooves 13 are symmetrically opened on the left and right sides of the inner side of the concave lifting seat 1. On the relatively far sides of the two L-shaped support plates 23, sector blocks 28 are symmetrically fixedly connected up and down. The sector blocks 28 are rotationally connected to the annular grooves 13, and the cylinder 26 is arranged between the two sector blocks 28.

[0039] When the motor shaft of the synchronous motor drives the cylinder 26 to rotate, the cylinder 26 drives the L-shaped support plate 23 to rotate. The L-shaped support plate 23 drives the mounting base plate 2 to swing. At the same time, the L-shaped support plate 23 drives the sector blocks 28 on the side to rotate along the annular grooves 13, so that the L-shaped support plate 23 can rotate stably. At the same time, during the opening operation, through the cooperation of the set sector blocks 28 and the annular grooves 13, the L-shaped support plate 23 can be more stable, preventing the L-shaped support plate 23 from shaking randomly and ensuring the stability of the opening.

[0040] Chutes 15 are symmetrically opened up and down on the side of the concave plate 14. The locking mechanism includes a locking crown gear 3 clamped on the side of the rotating crown gear 27. Sliders 31 are symmetrically fixedly connected to the cylindrical surface of the locking crown gear 3 up and down. The sliders 31 are slidably connected left and right with the chutes 15. Fixed ear blocks 32 are symmetrically fixedly connected to the front and rear of the cylindrical surface of the locking crown gear 3. A second hydraulic cylinder 33 is fixedly installed on the side of the fixed ear block 32, and the second hydraulic cylinder 33 is fixedly installed on the side of the concave lifting seat 1.

[0041] A circular hole is penetrated and opened on the side of the locking crown gear 3. The motor shaft of the synchronous motor passes through the circular hole on the side of the locking crown gear 3, and there is no interference between the motor shaft and the locking crown gear 3 during the rotation process.

[0042] The piston rod of the second hydraulic cylinder 33 is connected to the fixed ear block 32. When the piston rod of the second hydraulic cylinder 33 extends, it drives the locking crown gear 3 to move outwards. The locking crown gear 3 drives the slider 31 to slide along the chute 15. At the same time, the locking crown gear 3 is separated from the rotating crown gear 27. At this time, the rotating crown gear 27 can rotate freely. Since the rotating crown gear 27 is fixed to the cylinder 26, the motor shaft can drive the cylinder 26 to rotate at this time;

[0043] When the piston rod of the second hydraulic cylinder 33 contracts, it drives the locking crown gear 3 to move inwards, making the locking crown gear 3 engage with the rotating crown gear 27, thereby locking the rotating crown gear 27. At this time, the cylinder 26 also cannot rotate. At the same time, the L-shaped support plate 23 and the mounting base plate 2 also do not rotate, and thus stable opening operations can be carried out.

[0044] Transparent observation windows are installed on both the front and rear sides of the protective cover 4. A square bellows 41 is fixedly installed at the lower end of the protective cover 4. The square bellows 41 is made of rubber material. Spraying heads 42 and dust suction heads 43 are symmetrically installed on the left and right sides of the protective cover 4 respectively. The spraying head 42 is connected to the output end of the water pump through a flexible water pipe. Water is pumped out of the water tank by the water pump, and the water is transported to the spraying head 42 through the flexible water pipe. The water is sprayed out along the spraying head 42 for dust reduction. The dust suction head 43 is connected to the air extraction device through a flexible connecting pipe. A dust filtering and treatment device can be installed at the outlet end of the air extraction device to treat the dust in the opening.

[0045] Please refer to Figure 5 and Figure 6 , a rotating groove 21 is vertically penetrated and opened at the upper end of the mounting base plate 2. An activity groove 22 is opened on the side of the rotating groove 21. The transmission mechanism includes a rotating seat 5 rotatably installed in the rotating groove 21. An external gear ring 51 is fixedly sleeved on the outside of the rotating seat 5. A driving gear 52 is meshed with the side of the external gear ring 51. The driving gear 52 is driven by the output shaft of a servo motor fixedly installed at the upper end of the mounting base plate 2. Both the external gear ring 51 and the driving gear 52 are installed in the activity groove 22.

[0046] When the external gear ring 51 rotates, it rotates along the activity groove 22. The external gear ring 51 drives the rotating seat 5 to rotate along the rotating groove 21. At this time, the activity groove 22 limits the external gear ring 51 to prevent the external gear ring 51 from moving up and down. Through the cooperation of the rotating groove 21, the activity groove 22 and the external gear ring 51, the rotating seat 5 can only rotate along the rotating groove 21.

[0047] The output end of the servo motor drives the driving gear 52 to rotate, and the driving gear 52 drives the rotating seat 5 to rotate through the external gear ring 51.

[0048] Please refer to Figures 2 to 6 , a regular polygon groove is vertically penetrated and opened at the upper end of the rotating seat 5. The opening mechanism includes a regular polygon column 53 inserted through the regular polygon groove of the rotating seat 5. The regular polygon column 53 is slidably connected up and down with the regular polygon groove of the rotating seat 5. A circular groove 54 is recessed upward at the lower end of the regular polygon column 53. Guide grooves 55 are symmetrically penetrated outward on the left and right sides of the inner side of the circular groove 54. The lower end of the regular polygon column 53 is fixedly connected with an opening drill cylinder 56. The inner cavity of the opening drill cylinder 56 is communicated with the inner cavity of the circular groove 54, and the diameter of the inner cavity of the opening drill cylinder 56 is the same as the diameter of the circular groove 54;

[0049] A threaded column 57 is fixedly connected to the upper end of the regular polygon column 53. An internally threaded sleeve 25 is sleeved on the threaded column 57. The internally threaded sleeve 25 is threadedly connected to the threaded column 57. Brackets are fixedly connected to the left and right sides of the internally threaded sleeve 25 symmetrically. The two brackets are respectively fixedly connected to the upper ends of the two L-shaped support plates 23.

[0050] When the rotating seat 5 rotates, it drives the regular polygon column 53 to rotate synchronously. When the regular polygon column 53 rotates, it drives the threaded column 57 to rotate. At this time, the threaded column 57 rotates along the internally threaded sleeve 25. By driving the threaded column 57 to rotate forward or backward through the regular polygon column 53, the threaded column 57 moves upward or downward along the internally threaded sleeve 25. The threaded column 57 drives the regular polygon column 53 to move upward or downward. The regular polygon column 53 drives the hole-opening drill cylinder 56 to move downward or upward while rotating, so as to perform hole-opening operations or move the hole-opening drill cylinder 56 upward out of the hole.

[0051] When it is necessary to adjust the hole-opening angle of the hole-opening mechanism, first loosen the locking of the rotating crown gear 27 by the locking mechanism. Drive the cylinder 26 to rotate through the motor shaft of the synchronous motor. The cylinder 26 drives the L-shaped support plate 23 to rotate. The L-shaped support plate 23 drives the mounting base plate 2 to swing. The mounting base plate 2 drives the hole-opening mechanism to rotate, and the inclination angle of the hole-opening drill cylinder 56 is adjusted, so as to realize the adjustment of the hole-opening angle of the hole-opening mechanism. The adjustment method is simple and convenient;

[0052] After the adjustment is completed, lock the rotating crown gear 27 through the locking mechanism, so that the cylinder 26, the L-shaped support plate 23, the mounting base plate 2 and the hole-opening mechanism cannot rotate or swing randomly, so that the hole-opening mechanism can stably perform hole-opening operations.

[0053] Please refer to Figure 4 、 Figure 5 、 Figure 7 and Figure 8 As shown in, a material discharging mechanism is installed in the circular groove 54 of the regular polygon column 53. The material discharging mechanism includes a lifting slide seat 6 horizontally inserted in two guide grooves 55. The lifting slide seat 6 is slidably connected to the guide grooves 55 up and down. An annular limiting seat 61 is sleeved on the outside of the regular polygon column 53. The two ends of the lifting slide seat 6 respectively pass through the two guide grooves 55 and are fixedly connected to the inner side of the annular limiting seat 61. The inner side of the annular limiting seat 61 does not contact the regular polygon column 53. A support tube 63 is fixedly inserted at the lower end of the lifting slide seat 6. The lower end of the support tube 63 extends downward into the inner cavity of the hole-opening drill cylinder 56 and is fixedly connected to a material discharging head 64. The material discharging head 64 is slidably connected to the inner cavity of the hole-opening drill cylinder 56 up and down.

[0054] The support tube 63 can move up and down along the circular groove 54 and the inner cavity of the hole-opening drill cylinder 56.

[0055] An inlet mechanism is installed on the annular limit seat 61. The inlet mechanism includes an annular water passing seat 7 sleeved on the outside of the annular limit seat 61. An annular water passing cavity is formed on the inner side of the annular water passing seat 7. A convex portion protrudes from the side surface of the annular limit seat 61. The cross-section of the annular limit seat 61 is convex. The convex portion on the side surface of the annular limit seat 61 is clamped with the annular water passing cavity, and the convex portion is in rotational contact with the annular water passing cavity. A gap is left between the convex portion and the side wall of the annular water passing cavity for the flow of water. The outside of the annular limit seat 61 is in rotational contact with the inner side of the annular water passing seat 7. The contact position between the annular limit seat 61 and the annular water passing seat 7 is sealed. A water inlet pipe 71 is fixedly inserted into the outer side surface of the annular water passing seat 7. The water inlet pipe 71 communicates with the annular water passing cavity. One end of the water inlet pipe 71 is connected to a hose 72 through a pipe joint, and the other end of the hose 72 is connected to the output end of a water pump through a pipe joint;

[0056] A water inlet groove 62 is formed through the side surface of the lifting slide seat 6. Through grooves are symmetrically formed through the left and right sides of the side surface of the annular limit seat 61. The two through grooves are respectively communicated with the two ends of the water inlet groove 62. The upper end of the support pipe 63 extends upward to the bottom of the water inlet groove 62, and the inner cavity of the support pipe 63 communicates with the water inlet groove 62;

[0057] A circular cavity is formed inside the material discharging head 64. Water outlet grooves 66 are annularly arrayed downward at the bottom of the circular cavity. The lower end of the support pipe 63 extends downward to the bottom of the circular cavity. Water outlet notches 65 are symmetrically formed on the left and right sides of the lower end of the support pipe 63. The inner cavity of the support pipe 63 communicates with the circular cavity through the water outlet notches 65.

[0058] The water pump transports water through the hose 72 and the water inlet pipe 71 to the annular water passing cavity of the annular water passing seat 7. The water flows into the water inlet groove 62 along the through grooves, then flows downward along the water inlet groove 62 into the inner cavity of the support pipe 63, and flows downward along the inner cavity of the support pipe 63. The water flows into the circular cavity of the material discharging head 64 through the water outlet notches 65 at the lower end of the support pipe 63. Finally, the water flows downward out of the water outlet grooves 66 at the lower end of the material discharging head 64 and enters the inner cavity of the hole opening drill cylinder 56. The water flows downward along the inner cavity of the hole opening drill cylinder 56, thereby dust suppressing the dust drilled during the operation of the hole opening drill cylinder 56.

[0059] Please refer to Figures 4 to 7 、 Figure 9 As shown in

[0060] The upper end of the docking plate 8 is recessed downward to form a concave contraction groove 81. A movable plate 82 is slidably connected in the concave contraction groove 81. The upper end of the movable plate 82 is symmetrically protruded upward on the left and right to form extension plates. The upper ends of the two extension plates respectively penetrate through both ends of the concave contraction groove 81 and extend to the outside. The movable plate 82 and the two extension plates form a concave-shaped plate, and the movable plate 82 and the two extension plates are both slidably connected to the concave contraction groove 81 left and right. An elastic sheet 83 is installed on one side of an extension plate at the upper end of the movable plate 82. One side of the elastic sheet 83 abuts against the inner side of the concave contraction groove 81. The elastic sheet 83 applies an elastic force to the extension plate. A docking block 84 is fixedly connected to the upper end of the side surface of one of the extension plates at the upper end of the movable plate 82, and an extrusion block 85 is fixedly connected to the upper end of the side surface of the other extension plate. The upper ends of the docking block 84 and the extrusion block 85 are both in a slope shape. An annular transmission plate 73 is fixedly sleeved on the upper end of the regular polygon column 53 above the docking block 84.

[0061] During the process of the hole-opening operation, the regular polygon column 53 moves downward. When the regular polygon column 53 drives the annular transmission plate 73 to move downward to the lowest end, the annular transmission plate 73 first contacts the slope on the upper end of the docking block 84. When the annular transmission plate 73 continues to move downward, at this time the annular transmission plate 73 squeezes the docking block 84 to move. The docking block 84 drives the movable plate 82 to squeeze the elastic sheet 83 through the extension plate. When the annular transmission plate 73 moves to the lowest end, under the action of the elastic force of the elastic sheet 83, the movable plate 82 and the extension plate move back, and at the same time the extension plate drives the docking block 84 to move back, so that the docking block 84 is stuck above the annular transmission plate 73;

[0062] During the process of the hole-opening drill cylinder 56 moving downward, the docking plate 8 in the docking mechanism abuts against the upper end of the installation base plate 2, so that the docking mechanism cannot move downward. At the same time, the annular water connection seat 7, the annular limit seat 61, the lifting sliding seat 6, the support pipe 63 and the material discharging head 64 will not move downward. At this time, the inner cavity of the hole-opening drill cylinder 56 moves downward along the material discharging head 64;

[0063] When the regular polygon column 53 rotates, it drives the lifting sliding seat 6 to rotate. The lifting sliding seat 6 drives the annular limit seat 61 to rotate along the annular water connection cavity inside the annular water connection seat 7. At the same time, during the process of the regular polygon column 53 moving downward, the guiding groove 55 on its side slides downward along the lifting sliding seat 6;

[0064] After the hole opening is completed, the hole-opening drill barrel 56 needs to be moved upward out of the hole. At the same time, the regular polygon column 53 drives the annular drive plate 73 to move upward, and the annular drive plate 73 drives the docking block 84 to move upward, so that the entire docking mechanism moves upward. The docking mechanism drives the annular water seat 7 to move upward, and the annular water seat 7 drives the annular limit seat 61 and the lifting slide seat 6 to move upward. At the same time, the lifting slide seat 6 drives the material discharging head 64 to move upward through the support pipe 63, preventing the material discharging head 64 from pushing the stones in the hole-opening drill barrel 56 back into the hole during the upward movement of the hole-opening drill barrel 56.

[0065] Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 5 and Figure 9 As shown in, a pushing mechanism is installed above the docking mechanism. The pushing mechanism includes a lower pressing block 91 arranged above the extrusion block 85. The upper end of the L-shaped support plate 23 is fixedly installed with a third hydraulic cylinder 9. The piston rod of the third hydraulic cylinder 9 passes downward through the L-shaped support plate 23 and is fixedly connected to the upper end of the lower pressing block 91.

[0066] When it is necessary to discharge the stones in the hole-opening drill barrel 56, the piston rod of the third hydraulic cylinder 9 extends downward to drive the lower pressing block 91 to move downward. When the lower end of the lower pressing block 91 contacts the slope on the upper end of the extrusion block 85, when the lower pressing block 91 continues to move downward, it will push the extrusion block 85 to move. The extrusion block 85 drives the extension plate to move, the extension plate drives the movable plate 82 to move, and at the same time the movable plate 82 drives another extension plate to move, so that the docking block 84 is separated from the annular drive plate 73;

[0067] At this time, the lower pressing block 91 continues to move downward. When the lower end of the lower pressing block 91 contacts the upper end of the docking plate 8, the continuous downward movement of the lower pressing block 91 will drive the entire docking mechanism to move downward. At this time, the docking mechanism drives the annular water seat 7 to move downward, and the annular water seat 7 drives the annular limit seat 61 and the lifting slide seat 6 to move downward. At this time, the lifting slide seat 6 slides downward along the guide groove 55. At the same time, the lifting slide seat 6 drives the material discharging head 64 to move downward through the support pipe 63, so that the material discharging head 64 moves downward along the inner cavity of the hole-opening drill barrel 56, and the stones in the inner cavity of the hole-opening drill barrel 56 are pushed out by the material discharging head 64, thus facilitating the next hole-opening operation;

[0068] The operation of discharging the stones in the hole-opening drill barrel 56 is simple and convenient, greatly improving the work efficiency.

[0069] Working principle: When hole opening operation is required, first move the concave lifting seat 1 above or near the position where the hole is to be opened. By contracting the piston rod of the first hydraulic cylinder 11, the concave lifting seat 1 moves downward by a certain distance. The concave lifting seat 1 drives the L-shaped support plate 23, the mounting base plate 2, the hole opening mechanism, the protective cover 4, and the square corrugated pipe 41 to move downward, so that the square corrugated pipe 41 covers the position where the hole is to be opened. At the same time, the hole opening drill barrel 56 in the hole opening mechanism is aligned with the position where the hole is to be opened;

[0070] The output end of the servo motor drives the driving gear 52 to rotate. The driving gear 52 drives the rotating seat 5 to rotate through the external tooth ring 51. The rotating seat 5 drives the regular polygon column 53 to rotate. When the regular polygon column 53 rotates, it drives the threaded column 57 to rotate. At this time, the threaded column 57 rotates along the internal thread sleeve 25, so that the threaded column 57 moves downward along the internal thread sleeve 25. The threaded column 57 drives the regular polygon column 53 to move downward, so that the regular polygon column 53 drives the hole opening drill barrel 56 to move downward while rotating, so that the hole opening drill barrel 56 performs hole opening operation;

[0071] At this time, water is pumped out of the water tank by the water pump, and the water is conveyed to the spray head 42 through the flexible water pipe. The water sprays out along the spray head 42 for dust reduction; the air extraction device is used for air extraction, so that the dust suction head 43 sucks away the dust generated during the hole opening process; the protective cover 4 and the square corrugated pipe 41 provided can effectively prevent the flying of crushed stones during the hole opening process;

[0072] At the same time, the water pump conveys the water to the annular water passage cavity of the annular water passage seat 7 through the hose 72 and the water inlet pipe 71. The water flows downward along the through groove, the water inlet groove 62, and the inner cavity of the support pipe 63. The water flows into the circular cavity of the material discharging head 64 through the water outlet notch 65 at the lower end of the support pipe 63, and then flows downward along the water outlet groove 66 at the lower end of the material discharging head 64 and enters the inner cavity of the hole opening drill barrel 56. The water flows downward along the inner cavity of the hole opening drill barrel 56, so as to perform dust reduction on the dust drilled during the work of the hole opening drill barrel 56.

[0073] During the downward movement of the hole opening mechanism, it drives the annular transmission plate 73 to move downward. When the annular transmission plate 73 moves to the lowest end, the docking block 84 is stuck above the annular transmission plate 73;

[0074] When it is necessary to move the hole opening drill barrel 56 out of the hole after the drilling is completed, the output end of the servo motor drives the driving gear 52 to reverse, so that the rotating seat 5 drives the regular polygon column 53 to reverse. The regular polygon column 53 drives the threaded column 57 to reverse. At this time, the threaded column 57 moves upward along the internal thread sleeve 25. The threaded column 57 drives the regular polygon column 53 to move upward, so that the regular polygon column 53 drives the hole opening drill barrel 56 to move upward while rotating, so that the hole opening drill barrel 56 moves upward out of the hole. At this time, the hole opening drill barrel 56 is removed from above, or the hole opening drill barrel 56 is tilted and rotated;

[0075] During the upward movement of the regular polygon column 53, the docking mechanism is driven to move upward through the annular drive plate 73. The docking mechanism drives the annular water supply seat 7 to move upward, and the annular water supply seat 7 drives the annular limit seat 61 and the lifting slide seat 6 to move upward. At the same time, the lifting slide seat 6 drives the blanking head 64 to move upward through the support pipe 63;

[0076] When it is necessary to discharge the stones in the hole drilling cylinder 56, the piston rod of the third hydraulic cylinder 9 extends downward to drive the pressing block 91 to move downward. The pressing block 91 pushes the extrusion block 85 to move, and the extrusion block 85 drives the extension plate to move. The extension plate drives the movable plate 82 to move. At the same time, the movable plate 82 drives another extension plate to move, so that the docking block 84 is separated from the annular drive plate 73;

[0077] At this time, the pressing block 91 continues to move downward. When the lower end of the pressing block 91 contacts the upper end of the docking plate 8, the continuous downward movement of the pressing block 91 will drive the entire docking mechanism to move downward. At this time, the docking mechanism drives the annular water supply seat 7 to move downward, and the annular water supply seat 7 drives the annular limit seat 61 and the lifting slide seat 6 to move downward. At this time, the lifting slide seat 6 slides downward along the guide groove 55. At the same time, the lifting slide seat 6 drives the blanking head 64 to move downward through the support pipe 63, so that the blanking head 64 moves downward along the inner cavity of the hole drilling cylinder 56, and the stones in the inner cavity of the hole drilling cylinder 56 are pushed out by the blanking head 64, which facilitates the next hole opening operation, and the method of discharging the stones in the hole drilling cylinder 56 is simple and convenient;

[0078] At the same time, water is pumped through the hose 72 and the water inlet pipe 71 to the annular water supply cavity of the annular water supply seat 7 by a water pump. The water flows downward along the through groove, the water inlet groove 62 and the inner cavity of the support pipe 63. The water flows into the circular cavity of the blanking head 64 through the water outlet notch 65 at the lower end of the support pipe 63, and then flows downward along the water outlet groove 66 at the lower end of the blanking head 64 and enters the inner cavity of the hole drilling cylinder 56. The inner cavity of the hole drilling cylinder 56 is washed by water, and the stones and the like in the inner cavity of the hole drilling cylinder 56 are further cleaned, greatly improving the cleaning effect.

[0079] When it is necessary to adjust the hole opening angle of the hole opening mechanism, first, the piston rod of the second hydraulic cylinder 33 extends to drive the locking crown gear 3 to move outward, so that the locking crown gear 3 is separated from the rotating crown gear 27. At this time, the motor shaft of the synchronous motor drives the cylinder 26 to rotate, the cylinder 26 drives the L-shaped support plate 23 to rotate, the L-shaped support plate 23 drives the mounting base plate 2 to swing, and the mounting base plate 2 drives the hole opening mechanism to rotate, adjusting the inclination angle of the hole drilling cylinder 56, so as to realize the adjustment of the hole opening angle of the hole opening mechanism, and the adjustment method is simple and convenient;

[0080] After the adjustment is completed, the piston rod of the second hydraulic cylinder 33 contracts to drive the locking crown gear 3 to move inward, so that the locking crown gear 3 is engaged with the rotating crown gear 27, thereby locking the rotating crown gear 27. At this time, the cylinder 26 also cannot rotate, and at the same time, the L-shaped support plate 23 and the mounting base plate 2 also cannot rotate, so that stable hole opening operations can be carried out.

[0081] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A mine blasting hole opening device, comprising a concave lifting seat (1), characterized in that: The left and right sides and the rear side of the concave lifting seat (1) are fixedly mounted with a first hydraulic cylinder (11); the lower end of the first hydraulic cylinder (11) is fixedly mounted with a support base (12); a mounting base plate (2) is arranged below the inner side of the concave lifting seat (1); the upper end of the mounting base plate (2) is symmetrically fixedly connected with an L-shaped support plate (23); the two L-shaped support plates (23) are fixedly connected with a cylinder (26) on the side away from each other; the two L-shaped support plates (23) are rotatably connected to the two side plates of the concave lifting seat (1) through the two cylinders (26); the end of the cylinder (26) away from the L-shaped support plate (23) passes through the side wall of the concave lifting seat (1) and is fixedly sleeved with a rotating crown gear (27); the two outer side surfaces of the concave lifting seat (1) are symmetrically fixedly connected with concave plates (14); one of the cylinders (26) is driven by a motor shaft of a synchronous motor fixedly mounted on one of the concave plates (14); The two outer side surfaces of the concave lifting seat (1) are symmetrically mounted with locking mechanisms for locking the rotating crown gear (27); a hole-opening mechanism is mounted on the mounting base plate (2); a transmission mechanism for driving the hole-opening mechanism to move up and down is mounted inside the mounting base plate (2); and a protective cover (4) is fixedly mounted at the lower end of the mounting base plate (2); The upper end of the mounting base plate (2) is provided with a rotating groove (21) extending from top to bottom, and a movable groove (22) is provided on the side of the rotating groove (21); the transmission mechanism comprises a rotating seat (5) rotatably mounted in the rotating groove (21); an outer gear ring (51) is fixedly sleeved on the outer side of the rotating seat (5); a driving gear (52) is meshed on the side of the outer gear ring (51); the driving gear (52) is driven by an output shaft of a servo motor fixedly mounted on the upper end of the mounting base plate (2); and the outer gear ring (51) and the driving gear (52) are both mounted in the movable groove (22); The upper end of the rotating seat (5) is provided with a regular polygonal groove extending from top to bottom, the hole-opening mechanism comprises a regular polygonal column (53) inserted into the regular polygonal groove, the lower end of the regular polygonal column (53) is recessed upwards and provided with a circular groove (54), the inner side of the circular groove (54) is provided with a guide groove (55) extending outwards and extending symmetrically from left to right, and the lower end of the regular polygonal column (53) is fixedly connected with a hole-opening drill tube (56); The upper end of the regular polygonal column (53) is fixedly connected to a threaded column (57), an internal threaded sleeve (25) is sleeved on the threaded column (57), the internal threaded sleeve (25) is threadedly connected to the threaded column (57), and brackets are fixedly connected to the side surfaces of the internal threaded sleeve (25) in a symmetrical manner, and the two brackets are respectively fixedly connected to the upper ends of the two L-shaped support plates (23).

2. A mine blasting hole opening device according to claim 1, characterized in that: The inner side surface of the concave lifting seat (1) is symmetrically provided with an annular groove (13), and the two L-shaped support plates (23) are symmetrically fixedly connected with fan-shaped blocks (28) on the sides that are relatively far away from each other. The fan-shaped blocks (28) are rotatably connected to the annular groove (13), and the cylinder (26) is arranged between the two fan-shaped blocks (28).

3. A mine blasting hole opening device according to claim 1, characterized in that: The side surface of the concave plate (14) is symmetrically provided with a slide groove (15) in the upper and lower parts. The locking mechanism comprises a locking crown gear (3) which is clamped on the side surface of the rotating crown gear (27). A slider (31) is fixedly connected to the cylindrical surface of the locking crown gear (3) in a symmetrical manner in the upper and lower parts. The slider (31) is slidably connected to the slide groove (15) in the left and right parts. A fixed ear block (32) is fixedly connected to the cylindrical surface of the locking crown gear (3) in a symmetrical manner in the front and rear parts. A second hydraulic cylinder (33) is fixedly installed on the side surface of the fixed ear block (32). The second hydraulic cylinder (33) is fixedly installed on the side surface of the concave lifting seat (1).

4. A mine blasting hole opening device according to claim 1, characterized in that: Transparent observation windows are installed on both the front and rear sides of the protective cover (4); a square bellows (41) is fixedly installed on the lower end of the protective cover (4); the square bellows (41) is made of rubber material; a spray head (42) and a dust collector head (43) are symmetrically installed on the left and right sides of the protective cover (4); the spray head (42) is connected to the output end of the water pump through a soft water pipe, and the dust collector head (43) is connected to the air extraction device through a soft connecting pipe.

5. A mine blasting hole opening device according to claim 1, characterized in that: A material return mechanism is installed in the circular groove (54) of the regular polygonal column (53), and the material return mechanism includes a lifting slide (6) inserted horizontally into the two guide grooves (55). An annular limit seat (61) is sleeved on the outer side of the regular polygonal column (53). The two ends of the lifting slide (6) pass through the two guide grooves (55) and are fixedly connected to the inner side of the annular limit seat (61). A support tube (63) is fixedly inserted at the lower end of the lifting slide (6). The lower end of the support tube (63) extends downward to the inner cavity of the hole drilling tube (56) and is fixedly connected to a material return head (64). The material return head (64) is slidably connected to the inner cavity of the hole drilling tube (56) up and down.

6. A mine blasting hole opening device according to claim 5, characterized in that: A water inlet mechanism is installed on the annular limit seat (61), and the water inlet mechanism comprises an annular water passing seat (7) sleeved on the outside of the annular limit seat (61), an annular water passing cavity is provided on the inner side of the annular water passing seat (7), a convex portion is protruding from the side of the annular limit seat (61), the convex portion on the side of the annular limit seat (61) is engaged with the annular water passing cavity, the outer side of the annular limit seat (61) is in rotational contact with the inner side of the annular water passing seat (7), a water inlet pipe (71) is fixedly plugged on the outer side of the annular water passing seat (7), the water inlet pipe (71) is in communication with the annular water passing cavity, one end of the water inlet pipe (71) is connected to a hose (72) via a pipe joint, and the other end of the hose (72) is connected to an output end of a water pump via a pipe joint; A water inlet groove (62) is formed through the side of the lifting slide seat (6), and a through groove is formed through the side of the annular limit seat (61) symmetrically, the two through grooves are respectively connected to the two ends of the water inlet groove (62), the upper end of the support tube (63) extends upward to the bottom of the water inlet groove (62), and the inner cavity of the support tube (63) is connected to the water inlet groove (62); A circular cavity is formed on the inner side of the material return head (64), and a water outlet groove (66) is formed downwardly in a circular array at the bottom of the circular cavity. The lower end of the support tube (63) extends downwardly to the bottom of the circular cavity, and a water outlet notch (65) is formed symmetrically at the lower end of the support tube (63). The inner cavity of the support tube (63) is connected to the circular cavity through the water outlet notch (65).

7. A mine blasting hole opening device according to claim 6, characterized in that: A docking mechanism is installed on the side of the annular water-passing seat (7), and the docking mechanism includes a docking plate (8) fixedly connected to the side of the annular water-passing seat (7), and a rectangular block is symmetrically fixedly connected to one end of the docking plate (8) away from the annular water-passing seat (7), and a lifting groove (24) is opened on the side of an L-shaped support plate (23) close to the docking plate (8), and vertical grooves are symmetrically opened on the inner side of the lifting groove (24), and the docking plate (8) is connected to the lifting groove (24) in an up-and-down sliding manner, and the rectangular block is connected to the vertical groove in an up-and-down sliding manner; The upper end of the docking plate (8) is recessed downward to form a concave contraction groove (81), a movable plate (82) is slidably connected in the concave contraction groove (81), and an extension plate is symmetrically protruded upward at the upper end of the movable plate (82), and the upper ends of the two extension plates respectively penetrate the two ends of the concave contraction groove (81) and extend to the outside, an elastic sheet (83) is installed on one side of an extension plate at the upper end of the movable plate (82), and one side of the elastic sheet (83) abuts against the inner side of the concave contraction groove (81), a docking block (84) is fixedly connected to the upper end of the side of one of the extension plates at the upper end of the movable plate (82), and an extrusion block (85) is fixedly connected to the upper end of the side of the other extension plate, and the upper ends of the docking block (84) and the extrusion block (85) are both sloped, and an annular transmission plate (73) is fixedly sleeved on the upper end of the regular polygonal column (53) above the docking block (84).

8. A mine blasting hole opening device according to claim 7, characterized in that: A pushing mechanism is installed above the docking mechanism, and the pushing mechanism includes a lower pressing block (91) arranged above the extrusion block (85). A third hydraulic cylinder (9) is fixedly installed on the upper end of the L-shaped support plate (23), and a piston rod of the third hydraulic cylinder (9) passes downward through the L-shaped support plate (23) and is fixedly connected to the upper end of the lower pressing block (91).

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