CN212958453U

CN212958453U - Dustless drilling equipment of blasting

Info

Publication number: CN212958453U
Application number: CN202021995459.7U
Authority: CN
Inventors: 杨卓健; 高峰; 张盛; 冀宪成; 韩凤飞; 王卓彧; 刘宏宇; 康海江; 许院院
Original assignee: North Weijiamao Coal Power Co Ltd
Current assignee: North Weijiamao Coal Power Co Ltd
Priority date: 2020-09-14
Filing date: 2020-09-14
Publication date: 2021-04-13
Anticipated expiration: 2030-09-14

Abstract

The utility model belongs to the technical field of drilling devices, in particular to a blasting dust-free drilling device, which provides a proposal that comprises a drilling machine body, wherein one side of the top part of the drilling machine body is fixedly connected with a supporting arm, the other end of the supporting arm is rotationally connected with a supporting column, one side of the supporting column far away from the drilling machine body is slidably connected with an L-shaped slide block, one side of the bottom part of the L-shaped slide block is fixedly connected with a drilling motor, and a drilling rod is fixedly connected on a vertical downward output shaft of the drilling motor, the utility model has simple structure and convenient use, and can drive a suction fan blade and a spiral conveying blade to simultaneously rotate when the drilling rod is driven by the drilling motor to perform drilling operation, thereby realizing the effect of automatic dust collection, simultaneously conveying sucked dust into a water tank, greatly reducing the diffusion of the dust through precipitation in water, and being suitable, the practicability is improved, and the surrounding environment and the physical health of workers are greatly protected.

Description

Dustless drilling equipment of blasting

Technical Field

The utility model relates to a drilling equipment technical field especially relates to a dustless drilling equipment of blasting.

Background

Blasting engineering is mainly used for blasting construction of basic construction engineering such as mining, road construction, tunnel construction and the like, construction progress is accelerated, the most common construction mode at present is drilling blasting, and after rock is drilled, civil blasting articles such as explosives or detonators are loaded into drilled blast holes for blasting.

The existing blasting drilling device can generate a large amount of dust through high-speed rotation of a drill rod in the drilling process of rocks when an open coal mine is mined and drilled, so that the dust is scattered everywhere, the surrounding environment is greatly polluted, the condition of drilling is not favorable for a drilling worker to observe the drilling in time, and the scattered dust can cause great harm to the body of the drilling worker, so that the blasting dust-free drilling device is provided for solving the mentioned problems.

Disclosure of Invention

The utility model aims at solving the defects existing in the prior art and providing a blasting dust-free drilling device.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a blasting dust-free drilling device comprises a drilling machine body, wherein a supporting arm is fixedly connected to one side of the top of the drilling machine body, the other end of the supporting arm is rotatably connected with a supporting column, an L-shaped sliding block is slidably connected to one side of the supporting column, which is far away from the drilling machine body, a drilling motor is fixedly connected to one side of the bottom of the L-shaped sliding block, a drilling rod is fixedly connected to an output shaft of the drilling motor in a vertical downward direction, a fixed block is fixedly connected to the bottom of one side, which is close to the drilling motor, of the supporting column, the fixed block is of a hollow structure, a dust suction pipeline is fixedly connected to the outer wall of the bottom of the fixed block, a dust suction component is arranged in the dust suction pipeline, the bottom end of the drilling rod penetrates through the top and the bottom of the fixed block and extends into the dust suction pipeline, one side that dust absorption pipeline was kept away from to pipeline's bottom runs through fixedly connected with air-supply line, and the one end of air-supply line extends to the outside of pillar and communicates with there is the water tank, and water tank fixed mounting is in one side that dust absorption pipeline was kept away from to the pillar, and the top of water tank is equipped with out tuber pipe and inlet tube respectively, goes out the tuber pipe and is located between air-supply line and the inlet tube, and one side that the pillar was kept away from to the bottom of water tank is equipped with the blow off pipe, and one side of blow off pipe.

Preferably, the dust absorption subassembly includes that the slip cap establishes the sleeve pipe in drilling rod one side, and the sheathed tube top is connected with the top inner wall rotation of fixed block, and the sheathed tube bottom runs through the bottom of fixed block and extends to the dust absorption pipeline in, and two suction fan blades of one side outer wall symmetry fixedly connected with of sleeve pipe in being located the dust absorption pipeline, and the bottom of dust absorption pipeline is equipped with the fill type mouth of pipe, when the sleeve pipe rotates and drives the suction fan blade and rotate, can play the effect of dust absorption to can enlarge the area of dust absorption through the fill type mouth of pipe.

Preferably, sheathed tube inner wall is the annular equidistance and is equipped with a plurality of spouts, and the outer wall of drilling rod is the annular and is equipped with a plurality of sand grips, and a plurality of sand grips are sliding connection in a plurality of spouts respectively, through the cooperation of sand grip and spout, can rotate the drive sleeve pipe through the drilling rod and rotate.

Preferably, the one end that dust absorption pipeline was kept away from to pipeline is for remaining silent, and the bottom of one side inner wall that dust absorption pipeline was kept away from to the mounting groove is rotated and is connected with first bull stick, and the other end of first bull stick runs through pipeline's the inside that the closure end extends to pipeline, and one side that first bull stick is located pipeline inside is equipped with the auger delivery blade, rotates through first bull stick and drives the auger delivery blade and rotate, can play auger delivery's effect to absorbent dust.

Preferably, the inner wall of one side of the top of the mounting groove, which is far away from the fixing block, is rotatably connected with a second rotating rod, the bottom of one side of the second rotating rod and one side of the first rotating rod, which is located in the mounting groove, are fixedly sleeved with bevel gears, the two bevel gears are meshed with each other, and when the second rotating rod rotates, the first rotating rod can be driven to rotate through the meshing motion of the two bevel gears.

Preferably, one side top of second bull stick and the inside one side transmission of sleeve pipe position fixed block are connected with same belt, and when the sleeve pipe rotated, can drive the second bull stick through the belt and rotate.

Preferably, the fixed cover in one side of second bull stick is equipped with the cam that is located the belt below, one side bottom that the fixed block is close to the pillar runs through sliding connection and has the slide bar, and the one end of slide bar extends to in the mounting groove and cooperatees with the cam, one side of slide bar extends to the inside of fixed block and runs through the cover and be equipped with reset spring, reset spring's both ends respectively with one side inner wall of fixed block and one side fixed connection of slide bar, it rotates to drive the cam through the second bull stick, when the cam contacts with the slide bar, can drive the slide bar and remove, when the cam breaks away from the contact with the slide bar, can play the effect that resets to the slide.

Preferably, the same diaphragm of one side fixedly connected with that the fixed block and mounting groove are close to each other, and one side of second bull stick runs through to rotate with top one side of diaphragm and is connected, one side equidistance that the top of diaphragm is close to the fixed block runs through sliding connection and has a plurality of carriage release levers, the bottom of a plurality of carriage release levers extends to the below of diaphragm and equal fixedly connected with tup respectively, and the bottom of a plurality of tups contacts with pipeline's top outer wall respectively, the top of a plurality of carriage release levers extends to the top of diaphragm respectively and all rotates and is connected with the connecting rod, the other end of a plurality of connecting rods rotates with one side that the slide bar is located the mounting groove respectively and is connected, when slide bar horizontal migration, can drive the carriage release lever through the connecting rod and reciprocate, and then drive the tup reciprocates.

Preferably, the air inlet pipe is Z-shaped, and the air inlet pipe in the Z-shaped can not influence the absorption of dust when the water tank is in a vertical state or in a horizontal state after clockwise rotating for 90 degrees.

Preferably, the corner fixed sleeve that one side of air-supply line is located the water tank is equipped with the connecting block, and one side of connecting block and one side inner wall fixed connection that the water tank is close to the pillar can play the effect of stable connection to the air-supply line through the connecting block.

Compared with the prior art, the beneficial effects of the utility model are that: 1. in the utility model, the sand grip is driven to slide in the chute when the drill rod rotates and moves, the sleeve can be driven to rotate under the condition that the sliding of the drill rod is not influenced, and the suction fan blade is driven to rotate at the same time, so that dust generated by drilling can be absorbed into a dust absorption pipeline, the dust is prevented from diffusing, the dust absorption range can be enlarged through the bucket-shaped pipe orifice, and the dust absorption effect is improved;

2. in the utility model, the second rotating rod can be driven to rotate through the belt when the sleeve rotates, the first rotating rod can be driven to rotate, and further the spiral conveying blade is driven to rotate, at the moment, the dust sucked in the dust suction pipeline can be conveyed into the air inlet pipe through the spiral conveying blade, so that the dust can be input into the water inlet tank to be in contact precipitation with water, and the dust removal effect is achieved;

3. in the utility model, the air inlet pipe is arranged in a Z shape, so that the dust can not be absorbed in the horizontal state after the water tank is in a vertical state or clockwise rotation degree, and the practicability of the operation is improved;

4. the utility model discloses in, it can drive the cam rotation to rotate through the second bull stick, rotate when the cam to with the slide bar contact, can drive the slide bar and remove left, can drive the carriage release lever rebound through the connecting rod, drive tup rebound simultaneously, rotate when the cam to break away from the contact with the slide bar, under reset spring's elasticity left and right sides, can drive the slide bar and remove right, and drive the carriage release lever rebound through the connecting rod, and then drive the tup rebound and contact with pipeline's top, with this effect that realizes shaking the striking to pipeline, prevent that the dust from attaching to pipeline's inner wall in transportation process, cause pipeline's jam.

The utility model discloses simple structure, convenient to use when driving the drilling rod through the drilling motor and carrying out the drilling operation, can drive suction fan leaf and auger delivery blade and rotate simultaneously to this effect of realizing automatic dust absorption carries the case of intaking with inspiratory dust simultaneously, can greatly reduced the diffusion of dust through the deposit in aqueous, and this dust extraction is fit for vertical and horizontal operation simultaneously, has improved the practicality, and also the surrounding environment who protects greatly is healthy with staff.

Drawings

Fig. 1 is a schematic view of the overall structure of a blasting dust-free drilling device provided by the present invention;

fig. 2 is a partial structural sectional view of a blasting dust-free drilling device shown in fig. 1 according to the present invention;

FIG. 3 is an enlarged view of the structure of part A of the blasting dust-free drilling device of the present invention;

FIG. 4 is a schematic view of a connection structure of a drill rod and a casing of the blasting dust-free drilling device of the present invention;

fig. 5 is a sectional view of a water tank structure of a blasting dust-free drilling device provided by the utility model;

fig. 6 is the utility model provides a structural schematic diagram of blasting dust-free drilling equipment fig. 5 after clockwise rotation 90 degrees.

In the figure: 1. drilling a machine body; 2. a support arm; 3. a pillar; 4. an L-shaped slider; 5. a drilling motor; 6. a drill stem; 7. a fixed block; 8. a dust collection duct; 9. a bucket-type orifice; 10. a sleeve; 11. an intake fan blade; 12. a chute; 13. a convex strip; 14. mounting grooves; 15. a delivery conduit; 16. a first rotating lever; 17. a screw conveying blade; 18. a second rotating rod; 19. a bevel gear; 20. a belt; 21. a transverse plate; 22. a travel bar; 23. a hammer head; 24. a slide bar; 25. a connecting rod; 26. a return spring; 27. a cam; 28. a water tank; 29. an air inlet pipe; 30. connecting blocks; 31. an air outlet pipe; 32. a water inlet pipe; 33. a blow-off pipe; 34. a blowoff valve.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-6, a blasting dust-free drilling device comprises a drilling machine body 1, a supporting arm 2 is fixedly connected to one side of the top of the drilling machine body 1, a pillar 3 is rotatably connected to the other end of the supporting arm 2, an L-shaped slider 4 is slidably connected to one side of the pillar 3 away from the drilling machine body 1, a drilling motor 5 is fixedly connected to one side of the bottom of the L-shaped slider 4, a drill rod 6 is fixedly connected to a vertically downward output shaft of the drilling motor 5, a fixing block 7 is fixedly connected to the bottom of one side of the pillar 3 close to the drilling motor 5, the fixing block 7 is of a hollow structure, a dust suction pipeline 8 is fixedly connected to the outer wall of the bottom of the fixing block 7, a dust suction component is arranged in the dust suction pipeline 8, the bottom end of the drill rod 6 penetrates through the top and the bottom of the, the top of one side of the dust absorption pipeline 8 close to the pillar 3 is fixedly connected with a conveying pipeline 15 in a penetrating way, one side of the conveying pipeline 15 extends into the installation groove 14 and is connected with a dust absorption component in a transmission way, one side of the bottom of the conveying pipeline 15 far away from the dust absorption pipeline 8 is fixedly connected with an air inlet pipe 29 in a penetrating way, one end of the air inlet pipe 29 extends to the outer side of the pillar 3 and is communicated with a water tank 28, the water tank 28 is fixedly installed at one side of the pillar 3 far away from the dust absorption pipeline 8, the top of the water tank 28 is respectively provided with an air outlet pipe 31 and a water inlet pipe 32, the air outlet pipe 31 is positioned between the air inlet pipe 29 and the water inlet pipe 32, one side of the bottom of the water tank 28 far away from the pillar 3 is provided with a sewage discharge pipe 33, one side of the sewage discharge pipe 33 extends to the lower, with this effect of realizing automatic dust absorption, carry into water tank 28 with inspiratory dust simultaneously, can greatly reduced the dust diffuse through the deposit in aqueous to this dust extraction is fit for vertical and horizontal operation simultaneously, has improved the practicality, and also the surrounding environment who protects greatly is healthy with staff.

In the utility model, the dust absorption component comprises a sleeve 10 which is sleeved on one side of the drill rod 6 in a sliding way, the top end of the sleeve 10 is rotationally connected with the inner wall at the top of the fixed block 7, the bottom end of the sleeve 10 penetrates through the bottom of the fixed block 7 and extends into the dust absorption pipeline 8, two dust absorption fan blades 11 are symmetrically and fixedly connected with the outer wall at one side of the sleeve 10 positioned in the dust absorption pipeline 8, the bottom end of the dust absorption pipeline 8 is provided with a hopper-shaped pipe orifice 9, when the sleeve 10 rotates to drive the dust absorption fan blades 11 to rotate, the dust absorption effect can be achieved, the dust absorption area can be enlarged through the hopper-shaped pipe orifice 9, the inner wall of the sleeve 10 is provided with a plurality of chutes 12 in an annular equidistance, the outer wall of the drill rod 6 is provided with a plurality of raised lines 13 in an annular shape, the plurality of raised lines 13 are respectively connected in the chutes 12 in a sliding way, through the, the bottom of the inner wall of one side of the mounting groove 14 far away from the dust collection pipeline 8 is rotatably connected with a first rotating rod 16, the other end of the first rotating rod 16 penetrates through the closed end of the conveying pipeline 15 and extends into the conveying pipeline 15, one side of the first rotating rod 16, which is positioned in the conveying pipeline 15, is provided with a spiral conveying blade 17, the spiral conveying blade 17 is driven to rotate through the rotation of the first rotating rod 15, the spiral conveying effect on the absorbed dust can be achieved, the inner wall of one side of the top of the mounting groove 14 far away from the fixed block 7 is rotatably connected with a second rotating rod 18, the bottom of one side of the second rotating rod 18 and one side of the first rotating rod 16, which is positioned in the mounting groove 14, are fixedly sleeved with bevel gears 19, the two bevel gears 19 are meshed, when the second rotating rod 18 rotates, the first rotating rod 16 can be driven to rotate through the meshing motion of the two bevel gears 19, the top of one side of the second rotating rod 18 and one, when the sleeve 10 rotates, the second rotating rod 18 can be driven to rotate through the belt 20, one side of the second rotating rod 18 is fixedly sleeved with a cam 27 positioned below the belt 20, the bottom of one side of the fixed block 7, which is close to the pillar 3, is in through sliding connection with a sliding rod 24, one end of the sliding rod 24 extends into the installation groove 14 and is matched with the cam 27, one side of the sliding rod 24 extends into the fixed block 7 and is in through sleeving connection with a return spring 26, two ends of the return spring 26 are respectively and fixedly connected with the inner wall of one side of the fixed block 7 and one side of the sliding rod 24, the cam 27 can be driven to rotate through the rotation of the second rotating rod 18, when the cam 27 is in contact with the sliding rod 24, the sliding rod 25 can be driven to move, when the cam 27 is out of contact with the sliding rod 24, the return spring 26 can play a return effect on the sliding rod 24, one, one side of the second rotating rod 18 is connected with one side of the top of the transverse plate 21 in a penetrating and rotating manner, one side of the top of the transverse plate 21, which is close to the fixed block 7, is connected with a plurality of moving rods 22 in an equidistant penetrating and sliding manner, the bottom ends of the plurality of moving rods 22 extend to the lower side of the transverse plate 21 respectively and are fixedly connected with hammers 23, the bottoms of the plurality of hammers 23 are contacted with the outer wall of the top of the conveying pipeline 15 respectively, the top ends of the plurality of moving rods 22 extend to the upper side of the transverse plate 21 respectively and are rotatably connected with connecting rods 25, the other ends of the plurality of connecting rods 25 are rotatably connected with one side of the sliding rod 24, which is positioned in the mounting groove 14, when the sliding rod 24 moves horizontally, the moving rods 22 can be driven to move up and down through the connecting rods 25, so that the effect of vibrating and knocking on the conveying pipeline 15 is achieved, the air inlet pipe 29 is in a Z shape, and the air inlet pipe 29 in a Influence, the fixed cover in the corner that one side of air-supply line 29 is located water tank 28 is equipped with connecting block 30, and one side of connecting block 30 and one side inner wall fixed connection that water tank 28 is close to pillar 3 can play the effect of stable connection to air-supply line 29 through connecting block 30.

The working principle is as follows: firstly, the whole device is sent to a position needing drilling through a drilling machine body 1, then the position of a drill rod is adjusted through an air cylinder and a drag chain (the air cylinder and the drag chain are drawn in figure 1, but the specific working principle and the wiring mode are well known in the technical field, so that the technology is not mentioned in the text), then the drill rod 6 is driven to rotate by starting a drilling motor 5, meanwhile, the drag chain drives an L-shaped sliding block 4 to slowly move, the drilling motor 5 can be driven to move, and further the drill rod 6 is driven to rotationally move, so that the drilling operation is realized, when the drill rod 6 rotationally moves, a raised line 13 is driven to slide in a sliding groove 12, a sleeve 10 can be driven to rotate under the condition that the sliding of the drill rod 6 is not influenced, a suction fan blade 11 is driven to rotate, further, dust generated by drilling can be absorbed into a dust suction pipeline 8, the dust is prevented from diffusing, and the dust suction range can be expanded through a, the dust collection effect is improved, the second rotating rod 18 can be driven to rotate through the belt 20 when the sleeve 10 rotates, the first rotating rod 16 can be driven to rotate due to the meshing of the two bevel gears 19, the spiral conveying blade 17 is driven to rotate, dust sucked in the dust collection pipeline 8 can be conveyed into the air inlet pipe 29 through the spiral conveying blade 17 at the moment, the dust can be input into the water inlet tank 28 to be in contact precipitation with water, the dust collection effect is achieved, redundant air is purified through the water and then discharged from the air outlet pipe 31, water can be injected into the water tank 28 through the water inlet pipe 32, sewage in the water tank 28 can flow out from the sewage discharge pipe 33 through the sewage discharge valve 34, and the air inlet pipe 29 is arranged in a Z shape as shown in figures 5 and 6, so that the dust absorption cannot be influenced when the water tank 28 is in a vertical state or in a horizontal state after being rotated clockwise by 90 degrees, the practicality of operation has been improved, can drive cam 27 when second bull stick 18 rotates and rotate, when cam 27 rotates to the contact with slide bar 24, can drive slide bar 24 and remove to the left, reset spring 26 is in tensile state this moment, can drive carriage release lever 22 through connecting rod 25 and upwards remove, drive tup 23 rebound simultaneously, when cam 27 rotates to and breaks away from the contact with slide bar 24, under reset spring 26's elasticity left and right sides, can drive slide bar 24 and remove to reset to the right, and drive carriage release lever 22 through connecting rod 25 and downwards remove, and then drive tup 23 downwards and contact with pipeline 15's top, thereby realize the effect of strikeing to pipeline 15 vibrations, prevent that the dust from attaching to pipeline 15's inner wall in transportation process, cause pipeline 15's jam.

Of course, as is well known to those skilled in the art, the working principle and wiring method of the drilling motor 5 are conventional means or common knowledge in the art, and will not be described in detail herein, and those skilled in the art can make any choice according to their needs or convenience.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A blasting dust-free drilling device comprises a drilling machine body (1) and is characterized in that one side of the top of the drilling machine body (1) is fixedly connected with a supporting arm (2), the other end of the supporting arm (2) is rotatably connected with a pillar (3), one side, far away from the drilling machine body (1), of the pillar (3) is connected with an L-shaped sliding block (4) in a sliding manner, one side of the bottom of the L-shaped sliding block (4) is fixedly connected with a drilling motor (5), a drill rod (6) is fixedly connected onto a vertical downward output shaft of the drilling motor (5), the bottom of one side, close to the drilling motor (5), of the pillar (3) is fixedly connected with a fixed block (7), the fixed block (7) is of a hollow structure, the outer wall of the bottom of the fixed block (7) is fixedly connected with a dust absorption pipeline (8), a dust absorption assembly is arranged in the dust absorption pipeline (8, and the dust collection assembly is matched with the drill rod (6), one side of the pillar (3) close to the fixed block (7) is provided with a mounting groove (14), the top of one side of the dust collection pipeline (8) close to the pillar (3) is fixedly connected with a conveying pipeline (15), one side of the conveying pipeline (15) extends into the mounting groove (14) and is in transmission connection with the dust collection assembly, one side of the bottom of the conveying pipeline (15) far away from the dust collection pipeline (8) is fixedly connected with an air inlet pipe (29), one end of the air inlet pipe (29) extends to the outer side of the pillar (3) and is communicated with a water tank (28), the water tank (28) is fixedly arranged on one side of the pillar (3) far away from the dust collection pipeline (8), the top of the water tank (28) is respectively provided with an air outlet pipe (31) and a water inlet pipe (32), the air outlet pipe (31) is positioned between the air inlet pipe (29) and the water inlet pipe, one side of the drain pipe (33) extends to the lower part of the water tank (28) and is provided with a drain valve (34).

2. The blasting dust-free drilling device according to claim 1, wherein the dust collection assembly comprises a sleeve (10) which is slidably sleeved on one side of the drill rod (6), the top end of the sleeve (10) is rotatably connected with the inner wall of the top of the fixed block (7), the bottom end of the sleeve (10) penetrates through the bottom of the fixed block (7) and extends into the dust collection pipeline (8), two fan suction blades (11) are symmetrically and fixedly connected to the outer wall of one side of the sleeve (10) in the dust collection pipeline (8), and a bucket-shaped pipe orifice (9) is arranged at the bottom end of the dust collection pipeline (8).

3. A blasting dust-free drilling device according to claim 2, wherein the inner wall of the casing (10) is provided with a plurality of annular sliding grooves (12) at equal intervals, the outer wall of the drill rod (6) is provided with a plurality of annular protruding strips (13), and the plurality of protruding strips (13) are slidably connected in the plurality of sliding grooves (12) respectively.

4. The blasting dust-free drilling device according to claim 1, wherein one end of the conveying pipeline (15) far away from the dust suction pipeline (8) is closed, the bottom of the inner wall of one side of the mounting groove (14) far away from the dust suction pipeline (8) is rotatably connected with a first rotating rod (16), the other end of the first rotating rod (16) penetrates through the closed end of the conveying pipeline (15) and extends into the conveying pipeline (15), and one side of the first rotating rod (16) located inside the conveying pipeline (15) is provided with a spiral conveying blade (17).

5. A dust-free blasting drilling device as claimed in claim 1, wherein a second rotating rod (18) is rotatably connected to the inner wall of the top of the mounting groove (14) on the side away from the fixed block (7), a bevel gear (19) is fixedly arranged at the bottom of the second rotating rod (18) and the side of the first rotating rod (16) in the mounting groove (14), and the two bevel gears (19) are engaged with each other.

6. A blasting dust-free drilling device according to claim 5, wherein the top of one side of the second rotating rod (18) is in transmission connection with the same belt (20) as the side of the sleeve (10) located inside the fixed block (7).

7. A blasting dust-free drilling device according to claim 5, wherein a cam (27) located below the belt (20) is fixedly sleeved on one side of the second rotating rod (18), a sliding rod (24) is connected to the bottom of one side, close to the pillar (3), of the fixed block (7) in a penetrating and sliding mode, one end of the sliding rod (24) extends into the installation groove (14) and is matched with the cam (27), one side of the sliding rod (24) extends into the fixed block (7) and is sleeved with a return spring (26), and two ends of the return spring (26) are fixedly connected with the inner wall of one side of the fixed block (7) and one side of the sliding rod (24) respectively.

8. A dust-free drilling device for blasting according to claim 1, wherein the fixing block (7) and the mounting groove (14) are fixedly connected with the same transverse plate (21) at the side close to each other, one side of the second rotating rod (18) is connected with one side of the top of the transverse plate (21) in a penetrating and rotating way, one side of the top of the transverse plate (21), which is close to the fixed block (7), is equidistantly connected with a plurality of moving rods (22) in a penetrating and sliding way, the bottom ends of the plurality of moving rods (22) respectively extend to the lower part of the transverse plate (21) and are fixedly connected with hammers (23), and the bottoms of the hammers (23) are respectively contacted with the outer wall of the top of the conveying pipeline (15), the top ends of the moving rods (22) are respectively extended to the upper part of the transverse plate (21) and are respectively and rotatably connected with a connecting rod (25), and the other ends of the connecting rods (25) are respectively and rotatably connected with one side of the sliding rod (24) in the mounting groove (14).

9. A blasting dust-free drilling device according to claim 1, wherein the air inlet pipe (29) is zigzag-shaped.

10. A blasting dust-free drilling device as claimed in claim 1, wherein a connecting block (30) is fixedly attached to a corner of the air inlet pipe (29) in the water tank (28), and one side of the connecting block (30) is fixedly connected to the inner wall of the water tank (28) near the pillar (3).