Mining fissure drilling and grouting device

Abstract

The present invention provides a mining fissure drilling and grouting device, comprising a base, an L-shaped plate movably arranged on the top of the base through an adjustment mechanism and a support mechanism, a drilling and grouting mechanism arranged on the top of the L-shaped plate, the drilling and grouting mechanism comprising a first fixed plate, a second fixed plate, a first drill rod, a second drill rod, a first casing and a second casing, the second fixed plate being fixedly arranged on the top of one end of the L-shaped plate, and a fixed pipe being fixedly installed inside the second fixed plate. The present invention installs the first casing and the second casing on the outside of the first drill rod and the second drill rod through a one-way limiting mechanism, and lays a grouting pipe while drilling, which can improve the drilling and grouting efficiency and shorten the drilling and grouting period.

Description

Technical Field

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

[0002] The process of coal mining will cause deformation and damage of the overlying rock strata of the coal seam, resulting in collapse zones, fracture zones and bending deformation zones in the rock strata. The collapse zones and fracture zones have the ability to conduct water, which can easily cause water damage to the working face. In order to ensure the installation of the working face construction, grouting is injected into the fracture zones to block the water conduction channel. The grouting filling method is mainly used, and the material is mainly cement fly ash slurry. The slurry is injected into the "upper three zones" of the goaf through drilling.

[0003] In the existing mining fissure drilling and grouting technology, it is necessary to drill holes around the fissures, and then install grouting pipes inside the holes. The grouting pipes inject mixed slurry into the mining fissures. Due to the large number of holes, the drilling and grouting period is long, which reduces the drilling and grouting efficiency.

[0004] To this end, the present invention adopts a fissure drilling and grouting device. Summary of the invention

[0005] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a mining fissure drilling and grouting device to solve the problems raised in the above-mentioned background technology. The present invention installs the first casing and the second casing on the outside of the first drill rod and the second drill rod through a one-way limiting mechanism, and lays the grouting pipe while drilling, which can improve the drilling and grouting efficiency and shorten the drilling and grouting period.

[0006] In order to achieve the above-mentioned purpose, the present invention is implemented through the following technical scheme: a mining fissure drilling and grouting device comprises a base, an L-shaped plate is movably arranged on the top of the base through an adjustment mechanism and a support mechanism, a drilling and grouting mechanism is arranged on the top of the L-shaped plate, the drilling and grouting mechanism comprises a first fixed plate, a second fixed plate, a first drill rod, a second drill rod, a first casing and a second casing, the second fixed plate is fixedly arranged on the top of one end of the L-shaped plate, a fixed pipe is fixedly installed inside the second fixed plate, the first fixed plate is limitedly slidably installed inside the other end of the L-shaped plate, a rotating head is limitedly rotated and installed on one end of the first fixed plate, and one end of the rotating head A first drill rod is installed at one end through a mounting mechanism, a first sleeve and a second sleeve are provided on the outside of the first drill rod through a one-way limiting mechanism, a drill bit is fixedly provided at one end of the first drill rod, and flaring cutter heads are symmetrically and movably provided on both sides of the drill bit through mounting grooves, the mounting grooves are symmetrically arranged on both sides of the drill bit, the flaring cutter heads are movably installed in the inside of the mounting grooves through a torsion spring rotating shaft, the flaring cutter head is in close contact with one end of the first sleeve, the adjusting mechanism comprises a fixed box, a first rack and a second rack, a top plate is fixedly provided on the top of the first rack, a nail rod is fixedly provided on the bottom end of the second rack, and the one-way limiting mechanism comprises a movable block, a fixed stop rod and a fixed block.

[0007] Furthermore, the fixed box is fixedly arranged on the top of one end of the base, the first rack and the second rack are symmetrically and slidably installed inside the fixed box, and a gear is rotatably arranged between the first rack and the second rack.

[0008] Furthermore, the first rack and the second rack are meshed with the gear, through holes are provided on both the top and bottom sides of the fixed box, a rotating rod is fixed inside the gear, and a hand wheel is fixed at one end of the rotating rod corresponding to the outer side of the fixed box.

[0009] Furthermore, the support mechanism includes a limiting slide groove, which is symmetrically opened on both sides of the top of the other end of the base. A slider is installed inside the limiting slide groove for limiting sliding, and a support rod is installed on the top of the slider through a rotating shaft.

[0010] Furthermore, the top end of the support rod is movably connected to the bottom of the L-shaped plate through a rotating shaft, a strong magnet is fixedly provided at one end of the limiting slide groove, the sliding block is made of iron, and a stop block is movably provided at the bottom of the inner side of the limiting slide groove through a spring, the top of the stop block is provided with an arc surface, and the stop block is provided on one side of the strong magnet.

[0011] Furthermore, the first sleeve and the second sleeve are plugged into each other, and screw holes are provided inside both ends of the first sleeve and the second sleeve, and bolts are threadedly installed inside the screw holes.

[0012] Furthermore, the installation mechanism includes a screw, which is fixedly arranged at the center position of one end of the rotating head. A screw hole is opened inside the other end of the first drill rod, and the screw is threadedly installed inside the screw hole.

[0013] Furthermore, a mounting ring is fixedly installed on the outer side of one end of the rotating head through a connecting rod, one end of the second sleeve is sleeved on the outer side of the mounting ring, the mounting ring and the second sleeve are fixed by bolts, a servo motor is fixedly installed on the other side of the first fixed plate, the output shaft of the servo motor is fixedly connected to the rotating head, a hydraulic rod is fixedly installed between the first fixed plate and the second fixed plate, and the hydraulic rod is arranged below the rotating head.

[0014] Furthermore, the movable block is hingedly mounted on both ends of the second sleeve and both sides of the inner wall of the first sleeve, the fixed baffle is fixedly arranged on one side of the hinge of the movable block, and a spring is fixedly arranged between the movable block and the inner walls of the second sleeve and the first sleeve.

[0015] Furthermore, the fixed block is symmetrically fixed on the outer walls of the two ends of the first drill rod and the second drill rod, a clamping rod is fixedly provided at one end of the fixed block, the fixed block is in close contact with the movable block, the clamping rod is clamped inside the other end of the movable block, screw holes and screws are respectively provided at both ends of the second drill rod, and the first sleeve and the second sleeve are slidably installed inside the fixed tube.

[0016] The beneficial effects of the present invention: The mining fissure drilling and grouting device of the present invention includes a base, an adjustment mechanism, a supporting mechanism, an L-shaped plate, a first fixed plate, a servo motor, a rotating head, a second casing, a first casing, a first drill rod, a fixed pipe, a second fixed plate, a hydraulic rod, a fixed box, a gear, a first rack, a second rack, a limiting slide groove, a slider, a support rod, a strong magnet, a block, an installation groove, a flaring cutter head, a fixed block, a movable block, a fixed block rod, a mounting ring, a screw, and a second drill rod.

[0017] The device can perform splicing and installation between the rotating head and the first drill rod, between the rotating head and the second drill rod, and between the first drill rod and the second drill rod through the screw rod and the screw hole, so as to facilitate the drilling operation through the first drill rod and the second drill rod; the second casing and the first casing are conveniently fixed through the mounting ring and the bolt, so as to splice the first casing and the second casing, so as to facilitate the installation of the first casing and the second casing on the outside of the first drill rod and the second drill rod; the flaring cutter head can flare the borehole so that the first casing and the second casing can enter the borehole, so as to facilitate the laying of the first casing while drilling. , and the second casing, so that grouting can be carried out into the mining fissure through the first casing and the second casing, thereby improving the drilling and grouting efficiency of the mining fissure; through the one-way limiting mechanisms such as the movable block, the fixed block and the fixed stop rod, the first drill rod and the second drill rod can support the first casing and the second casing, and at the same time, the first drill rod and the second drill rod can be separated from the first casing and the second casing when they are pulled out of the borehole, so that the first casing and the second casing can be left in the borehole for grouting; the fixed pipe can limit the first drill rod and the second drill rod to prevent the borehole from shifting.

[0018] The device can drive the gear to rotate through a hand wheel and a rotating rod. The gear meshes with the first rack and the second rack to rise and fall and slide inside the fixed box respectively. The first rack drives the top plate to squeeze the L-shaped plate, so that the L-shaped plate drives the drilling and grouting mechanism to tilt, which is convenient for subsequent drilling and grouting; the second rack drives the nail rod to descend and insert it into the ground, which is convenient for fixing the base, thereby improving the stability of the device.

[0019] When the L-shaped plate of the device rotates upward, the support rod can be pulled, and the support rod drives the slider to slide inside the limiting slide groove. The slider is conveniently fixed by the magnetic attraction of the strong magnet and the slider. At the same time, the stopper is arranged on the right side of the slider, which is convenient for limiting the slider and supporting the L-shaped plate through the slider and the support rod, thereby improving the stability of the L-shaped plate and the drilling and grouting mechanism; by adjusting the L-shaped plate, the adjustment of the device can be reduced, and the transportation of the device is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural diagram of the mining fissure drilling and grouting device of the present invention;

[0021] Figure 2 It is a front cross-sectional view of the mining fissure drilling and grouting device of the present invention;

[0022] Figure 3 The invention is a mining fissure drilling grouting device Figure 2 Enlarged view of point A in the middle;

[0023] Figure 4 The invention is a mining fissure drilling grouting device Figure 2 Enlarged view of point B in the middle;

[0024] Figure 5 It is a cross-sectional view of the adjustment state of the mining fissure drilling and grouting device of the present invention;

[0025] Figure 6 This is a structural diagram of the rotating head of the mining fissure drilling and grouting device of the present invention;

[0026] Figure 7 This is a structural diagram of a second drill rod of the mining fissure drilling and grouting device of the present invention;

[0027] In the figure: 1. base; 2. adjustment mechanism; 3. support mechanism; 4. L-shaped plate; 5. first fixed plate; 6. servo motor; 7. rotating head; 8. second casing; 9. first casing; 10. first drill rod; 11. fixed pipe; 12. second fixed plate; 13. hydraulic rod; 14. fixed box; 15. gear; 16. first rack; 17. second rack; 18. limiting slide groove; 19. slider; 20. support rod; 21. strong magnet; 22. block; 23. mounting groove; 24. flaring cutter head; 25. fixed block; 26. movable block; 27. fixed stop rod; 28. mounting ring; 29. ​​screw; 30. second drill rod. DETAILED DESCRIPTION

[0028] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0029] See also Figures 1 to 7The present invention provides a technical solution: a mining fissure drilling and grouting device, comprising a base 1, an L-shaped plate 4 is movably arranged on the top of the base 1 through an adjustment mechanism 2 and a support mechanism 3, a drilling and grouting mechanism is arranged on the top of the L-shaped plate 4, the drilling and grouting mechanism comprises a first fixed plate 5, a second fixed plate 12, a first drill rod 10, a second drill rod 30, a first sleeve 9 and a second sleeve 8, the second fixed plate 12 is fixedly arranged on the top of one end of the L-shaped plate 4, a fixed tube 11 is fixedly installed inside the second fixed plate 12, the first fixed plate 5 is limitedly slidably installed inside the other end of the L-shaped plate 4, a rotating head 7 is limitedly rotated and installed at one end of the first fixed plate 5, one end of the rotating head 7 is installed with the first drill rod 10 through a mounting mechanism, the outer side of the first drill rod 10 is provided with the first sleeve 9 and the second sleeve 8 through a one-way limiting mechanism, one end of the first drill rod 10 is fixedly provided with a drill bit, and both sides of the drill bit are connected by mounting grooves 23 is symmetrically and movably provided with a flaring cutter head 24, the mounting groove 23 is symmetrically opened on both sides of the drill bit, the flaring cutter head 24 is movably installed in the mounting groove 23 through a torsion spring rotating shaft, the flaring cutter head 24 is in close contact with one end of the first sleeve 9, the adjusting mechanism 2 includes a fixed box 14, a first rack 16 and a second rack 17, a top plate is fixedly provided on the top of the first rack 16, and a nail rod is fixedly provided on the bottom end of the second rack 17, the one-way limiting mechanism includes a movable block 26, a fixed stop rod 27 and a fixed block 25, and by installing the first sleeve 9 and the second sleeve 8 on the outside of the first drill rod 10 and the second drill rod 30, the first sleeve 9 and the second sleeve 8 can be laid in the borehole while drilling, thereby improving the efficiency of mining fissure drilling and grouting, and shortening the drilling and grouting period; the flaring cutter head 24 can expand the borehole, so that the first sleeve 9 and the second sleeve 8 can enter the inside of the borehole, which is convenient for subsequent grouting into the borehole.

[0030] In this embodiment, the fixed box 14 is fixedly arranged on the top of one end of the base 1, and the first rack 16 and the second rack 17 are symmetrically limited and slidably installed in the fixed box 14. A gear 15 is rotatably arranged between the first rack 16 and the second rack 17, and the first rack 16 and the second rack 17 are meshed with the gear 15. Through holes are opened on both sides of the top and bottom of the fixed box 14, and a rotating rod is fixedly arranged inside the gear 15. A hand wheel is fixedly arranged at one end of the rotating rod corresponding to the outer side of the fixed box 14. The hand wheel and the rotating rod can drive the gear 15 to rotate inside the fixed box 14, which is convenient for adjusting the first rack 16 and the second rack 17 at the same time. The first rack 16 can drive the top plate to squeeze the L-shaped plate 4, so that the L-shaped plate 4 rotates on the base 1, which is convenient for tilting and adjusting the drilling and grouting mechanism, and convenient for subsequent drilling. At the same time, the second rack 17 drives the nail rod to move downward and insert into the ground, which can improve the stability of the base 1.

[0031] In this embodiment, the supporting mechanism 3 includes a limiting slide groove 18, which is symmetrically arranged on both sides of the top of the other end of the base 1. A slider 19 is installed in the limiting sliding position inside the limiting slide groove 18. A support rod 20 is movably installed on the top of the slider 19 through a rotating shaft. The top of the support rod 20 is movably connected to the bottom of the L-shaped plate 4 through a rotating shaft. A strong magnet 21 is fixedly arranged at one end of the limiting slide groove 18. The slider 19 is made of iron. A stopper 22 is movably arranged at the bottom of the inner side of the limiting slide groove 18 through a spring. The top of the stopper 22 is provided with an arc surface, and the stopper 22 is arranged on one side of the strong magnet 21. The limiting slide groove 18 can limit the slider 19, and the slider 19 can be magnetically fixed by the strong magnet 21, and the stopper 22 is blocked on the right side of the slider 19, so as to facilitate the phase of the slider 19, thereby facilitating the support of the L-shaped plate 4 by the slider 19 and the support rod 20, and improving the stability of the L-shaped plate 4.

[0032] In this embodiment, the first sleeve 9 and the second sleeve 8 are plugged and installed with each other, screw holes are provided at both ends of the first sleeve 9 and the second sleeve 8, bolts are screwed and installed inside the screw holes, the installation mechanism includes a screw 29, the screw 29 is fixedly arranged at the center position of one end of the rotating head 7, a screw hole is provided inside the other end of the first drill rod 10, the screw 29 is screwed and installed inside the screw hole, a mounting ring 28 is fixedly installed on the outer side of one end of the rotating head 7 through a connecting rod, one end of the second sleeve 8 is sleeved on the outer side of the mounting ring 28, the mounting ring 28 and the second sleeve 8 are fixed by bolts, and the first fixing A servo motor 6 is fixedly installed on the other side of the plate 5, and the output shaft of the servo motor 6 is fixedly connected to the rotating head 7. A hydraulic rod 13 is fixedly installed between the first fixed plate 5 and the second fixed plate 12, and the hydraulic rod 13 is arranged below the rotating head 7. The screw 29 and the screw hole are used to facilitate the installation between the rotating head 7 and the first drill rod 10, and between the rotating head 7 and the second drill rod 30. The first sleeve 9 or the second sleeve 8 can be fixedly connected to the rotating head 7 through the mounting ring 28 and the bolt, so that the first sleeve 9 and the second sleeve 8 are installed on the outside of the first drill rod 10 or the second drill rod 30, which is convenient for laying the first sleeve 9 and the second sleeve 8 while drilling.

[0033] In this embodiment, the movable block 26 is hingedly mounted on both ends of the second sleeve 8 and both sides of the inner wall of the first sleeve 9, the fixed stop rod 27 is fixedly arranged on one side of the hinge of the movable block 26, a spring is fixedly arranged between the movable block 26 and the inner walls of the second sleeve 8 and the first sleeve 9, the fixed block 25 is symmetrically fixedly arranged on the outer walls of both ends of the first drill rod 10 and the second drill rod 30, one end of the fixed block 25 is fixedly arranged with a clamping rod, the fixed block 25 is in close contact with the movable block 26, the clamping rod is clamped inside the other end of the movable block 26, and screw holes are respectively arranged at both ends of the second drill rod 30 and a screw rod 29, the first sleeve 9 and the second sleeve 8 are slidably installed inside the fixed tube 11, the fixed stop rod 27 can limit the movable block 26, the movable block 26 and the fixed block 25 can be mutually clamped and installed, and the first sleeve 9 and the second sleeve 8 are squeezed during the drilling process of the first drill rod 10 and the second drill rod 30 to facilitate their insertion into the drill hole; when the first drill rod 10 and the second drill rod 30 are pulled out in reverse, the fixed block 25 can be separated from the movable block 26, which is convenient for separating the first drill rod 10 and the second drill rod 30 from the first sleeve 9 and the second sleeve 8, and the set spring can rebound the movable block 26.

[0034] When using the mining fissure drilling and grouting device, the device is moved to the position where drilling is required, and the hand wheel and the rotating rod are turned. The hand wheel and the rotating rod drive the gear 15 to rotate inside the fixed box 14. The gear 15 engages to drive the first rack 16 and the second rack 17 to rise and fall respectively inside the fixed box 14. The first rack 16 squeezes the L-shaped plate 4 through the top plate at its top, so that the L-shaped plate 4 rotates upward on the top of the base 1 and drives the drilling and grouting mechanism to tilt. The second rack 17 drives the nail rod to be inserted into the ground, which is convenient for limiting the base 1 and can improve the stability of the device. While the L-shaped plate 4 rotates, it can drive the support rod 20 to move through the shaft rod, and the support rod 20 drives the slider 19 inside the limiting slide groove 18 through the shaft rod. The slider 19 moves to the left, and the slider 19 squeezes the stopper 22, and the stopper 22 compresses the spring downward, so that the slider 19 is in contact with the strong magnet 21 and is fixed by magnetic attraction. The stopper 22 is blocked on the right side of the slider 19 by the elastic force of the spring, which is convenient for fixing the slider 19 and supporting the L-shaped plate 4 through the slider 19 and the support rod 20, which can improve the stability of the L-shaped plate 4 and the drilling and grouting mechanism. The second sleeve 8 is mounted on the outside of the first drill rod 10 and the mounting ring 28, and the mounting bolts are screwed inside the mounting ring 28 and the second sleeve 8. One end of the first sleeve 9 is plugged and installed with one end of the second sleeve 8 and fixed by bolts. The first sleeve 9 is slidably installed in the interior of the fixed tube 11, and the first drill rod 10 is connected to the second sleeve 8 through the screw 29 on the rotating head 7. The screw connection of the screw hole is screwed and fixed with the rotating head 7, and the first drill rod 10 is installed inside the first sleeve 9 and the second sleeve 8. At this time, the flaring cutter head 24 rotates from the inside of the installation groove 23 under the torsion of the torsion spring shaft and fits with the first sleeve 9. At the same time, the fixed block 25 is clamped and installed between the clamping rod and the movable block 26. The servo motor 6 is started, and the servo motor 6 drives the first drill rod 10, the first sleeve 9 and the second sleeve 8 to rotate through the rotating head 7. The hydraulic rod 13 is started, and the hydraulic rod 13 drives the first fixed plate 5 to slide downward along the L-shaped plate 4. The first fixed plate 5 drives the first drill rod 10, the first sleeve 9 and the second sleeve 8 to tilt and descend through the rotating head 7, and the drill bit is drilled into the ground. The fixed pipe 11 is set to be able to pass through the first The casing 9 and the second casing 8 are limited to prevent the borehole from tilting. After the first drill rod 10 and the second casing 8 move a certain distance, they are separated from the rotating head 7, and the rotating head 7 and the first fixed plate 5 are controlled to move in the opposite direction. A second drill rod 30 is installed between the rotating head 7 and the first drill rod 10, and another second casing 8 is installed between the rotating head 7 and the second casing 8 until the borehole reaches the mining fissure. By moving the first fixed plate 5 and the rotating head 7 in the opposite direction, the first drill rod 10 and the second drill rod 30 can be pulled out of the borehole, and the fixed block 25 is separated from the movable block 26, so that the first casing 9 and multiple second casings 8 remain in the borehole. After the first drill rod 10 is completely taken out, grouting is injected into the mining fissure through the second casing 8 and the first casing 9.

[0035] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the attached claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0036] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A mining fissure drilling and grouting device, comprising a base (1), characterized in that: An L-shaped plate (4) is movably arranged on the top of the base (1) via an adjustment mechanism (2) and a support mechanism (3); a drilling and grouting mechanism is arranged on the top of the L-shaped plate (4); the drilling and grouting mechanism comprises a first fixed plate (5), a second fixed plate (12), a first drill rod (10), a second drill rod (30), a first casing (9) and a second casing (8); the second fixed plate (12) is fixedly arranged on the top of one end of the L-shaped plate (4); a fixed tube (11) is fixedly installed inside the second fixed plate (12); the first fixed plate (5) is limitedly slidably installed inside the other end of the L-shaped plate (4); a rotating head (7) is limitedly rotatably installed on one end of the first fixed plate (5); one end of the rotating head (7) is installed with the first drill rod (10) via a mounting mechanism; the first drill rod (10) is fixedly installed on one end of the rotating head (7); ) is provided with a first sleeve (9) and a second sleeve (8) through a one-way limiting mechanism on the outer side of the first drill rod (10); a drill bit is fixedly provided at one end of the first drill rod (10); and flaring cutter heads (24) are symmetrically and movably provided on both sides of the drill bit through mounting grooves (23); the mounting grooves (23) are symmetrically arranged on both sides of the drill bit; the flaring cutter heads (24) are movably installed inside the mounting grooves (23) through torsion spring rotating shafts; the flaring cutter heads (24) are in close contact with one end of the first sleeve (9); the adjusting mechanism (2) comprises a fixed box (14), a first rack (16) and a second rack (17); a top plate is fixedly provided on the top of the first rack (16); and a nail rod is fixedly provided on the bottom end of the second rack (17); and the one-way limiting mechanism comprises a movable block (26), a fixed stop rod (27) and a fixed block (25).

2. The mining fissure drilling and grouting device according to claim 1 is characterized in that: The fixed box (14) is fixedly arranged on the top of one end of the base (1); the first rack (16) and the second rack (17) are symmetrically limited and slidably installed inside the fixed box (14); and a gear (15) is rotatably arranged between the first rack (16) and the second rack (17).

3. The mining fissure drilling and grouting device according to claim 2 is characterized in that: The first rack (16) and the second rack (17) are meshed with the gear (15), through holes are provided on both sides of the top and bottom of the fixed box (14), a rotating rod is fixedly installed inside the gear (15), and a hand wheel is fixedly installed at one end of the rotating rod corresponding to the outer side of the fixed box (14).

4. The mining fissure drilling and grouting device according to claim 1 is characterized in that: The support mechanism (3) comprises a limit slide groove (18), wherein the limit slide groove (18) is symmetrically arranged on both sides of the top of the other end of the base (1), a slider (19) is installed inside the limit slide groove (18) for limit sliding, and a support rod (20) is installed on the top of the slider (19) for movement via a rotating shaft.

5. The mining fissure drilling and grouting device according to claim 4 is characterized in that: The top end of the support rod (20) is movably connected to the bottom of the L-shaped plate (4) via a rotating shaft; a strong magnet (21) is fixedly provided at one end of the limiting slide groove (18); the sliding block (19) is made of iron; a stopper (22) is movably provided at the bottom of the inner side of the limiting slide groove (18) via a spring; a curved surface is provided at the top of the stopper (22); and the stopper (22) is provided on one side of the strong magnet (21).

6. The mining fissure drilling and grouting device according to claim 1 is characterized in that: The first sleeve (9) and the second sleeve (8) are plugged into each other and installed. Screw holes are provided inside both ends of the first sleeve (9) and the second sleeve (8), and bolts are threadedly installed inside the screw holes.

7. The mining fissure drilling and grouting device according to claim 6 is characterized in that: The mounting mechanism comprises a screw rod (29), the screw rod (29) being fixedly arranged at the center position of one end of the rotating head (7), a screw connection hole being provided inside the other end of the first drill rod (10), and the screw rod (29) being screwed and mounted inside the screw connection hole.

8. The mining fissure drilling and grouting device according to claim 7 is characterized in that: A mounting ring (28) is fixedly mounted on the outer side of one end of the rotating head (7) via a connecting rod; one end of the second sleeve (8) is sleeved on the outer side of the mounting ring (28); the mounting ring (28) and the second sleeve (8) are fixed via bolts; a servo motor (6) is fixedly mounted on the other side of the first fixing plate (5); an output shaft of the servo motor (6) is fixedly connected to the rotating head (7); a hydraulic rod (13) is fixedly mounted between the first fixing plate (5) and the second fixing plate (12); the hydraulic rod (13) is arranged below the rotating head (7).

9. The mining fissure drilling and grouting device according to claim 1, characterized in that: The movable block (26) is hingedly mounted at both ends of the second sleeve (8) and both sides of the inner wall of the first sleeve (9), the fixed stop rod (27) is fixedly arranged on one side of the hinge of the movable block (26), and a spring is fixedly arranged between the movable block (26) and the inner walls of the second sleeve (8) and the first sleeve (9).

10. The mining fissure drilling and grouting device according to claim 9, characterized in that: The fixed block (25) is symmetrically fixedly arranged on the outer walls of both ends of the first drill rod (10) and the second drill rod (30); a clamping rod is fixedly arranged on one end of the fixed block (25); the fixed block (25) is in close contact with the movable block (26); the clamping rod is clamped inside the other end of the movable block (26); screw holes and screws (29) are respectively arranged at both ends of the second drill rod (30); and the first sleeve (9) and the second sleeve (8) are slidably installed inside the fixed tube (11).

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