Rock drilling and grouting equipment and method based on rock permeability

Abstract

The application discloses a rock drilling and grouting equipment and method based on rock permeability, and particularly relates to the technical field of rock grouting, which comprises a drilling and grouting device, one end of the drilling and grouting device is provided with an auxiliary supporting device, the drilling and grouting device comprises a first cross frame, one end of the first cross frame is fixedly provided with a second cross frame, a first seat is vertically installed at the end of the first cross frame away from the second cross frame, and a second seat is vertically installed at the end of the second cross frame away from the first cross frame. The drilling and grouting device is arranged to automatically process deep drilling at the rock grouting position, and the grouting hole is immediately subjected to grouting operation. Meanwhile, the long drilling pipe slowly separates from the grouting hole during grouting, and the long drilling pipe always supports the grouting hole during the grouting operation, so that the collapse of the hole wall of some high-permeability rocks or the leakage of residues, which leads to the blockage of the hole or the early loss of the slurry, is prevented, and the effect and efficiency of the whole equipment on rock grouting are improved.

Description

Technical Field

[0001] This invention relates to the field of rock grouting technology, specifically to a rock drilling grouting device and method based on rock permeability. Background Technology

[0002] Rock drilling and grouting technology is a key technology in the field of geotechnical engineering. By injecting grout into rock boreholes, the grout can penetrate into the rock fissures and pores and solidify, improving the integrity of the rock mass and its compressive and shear strength. In scenarios such as water conservancy projects and mining, fissures in rocks may become channels for groundwater seepage. Grouting can fill the fissures with grout to form a water-resistant curtain, blocking the flow of groundwater and preventing disasters such as water inrush and sudden water flow.

[0003] However, due to the different permeability of rocks, different drilling and grouting methods are used. Traditional rock drilling and grouting usually involves drilling holes in the rock with a drilling machine, then removing the drill rod and inserting a grouting rod for grouting reinforcement. During the process of removing the drill rod and installing the grouting rod, some rocks with high permeability may experience hole wall collapse or slag leakage, leading to hole blockage or premature loss of grout. To address these issues, we propose a rock drilling and grouting equipment and method based on rock permeability to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide a rock drilling grouting device and method based on rock permeability to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a rock drilling and grouting device based on rock permeability, comprising a drilling and grouting device, one end of which is provided with an auxiliary support device, the drilling and grouting device including a first crossbeam, a second crossbeam fixedly installed at one end of the first crossbeam, a first seat vertically installed at the end of the first crossbeam away from the second crossbeam, a second seat vertically installed at the end of the second crossbeam away from the first crossbeam, a guide crossbar fixedly installed at one end of the first seat and the second seat, a translation screw rotatably installed at the other end of the first seat and the second seat, a movable bracket slidably installed on the outer side of the guide crossbar, the translation screw threaded through the movable bracket, a first bearing fixedly clamped in the middle of the second seat, a drive cylinder fixedly clamped in the middle of the first bearing, a second bearing fixedly clamped in the middle of the movable bracket, and a drilling and grouting mechanism provided between the drive cylinder and the second bearing.

[0006] In a preferred embodiment of the present invention, the drilling and grouting mechanism includes a long drilling tube. An elongated clamping strip is integrally formed on the outer side of the long drilling tube. The long drilling tube and the elongated clamping strip are slidably engaged in the middle of a drive cylinder. One end of the long drilling tube is fixedly engaged in the middle of a second bearing. A grouting inner cylinder is provided inside the long drilling tube. An inner sealing cover is fixedly engaged at the end of the grouting inner cylinder away from the second bearing. The inner sealing cover is slidably engaged in the long drilling tube. A grouting groove is formed at the end of the grouting inner cylinder near the inner sealing cover. The end of the long drilling tube away from the second bearing passes through… A drill bit is fixed in place by a bolt. A connector is integrally formed at the end of the grouting inner cylinder away from the inner cover. A valve is threaded into the connector. An elongated groove corresponding to the valve is opened on the side of the drilling tube. A connecting bend is fixedly installed at the end of the valve. A connecting hose is threadedly installed at the end of the connecting bend away from the valve. A threaded inner groove is opened at the end of the grouting inner cylinder away from the inner cover. An inner deep insertion rod is threaded into the inner groove. A limit plate is fixedly installed at the outer end of the inner deep insertion rod. The limit plate is movably engaged with one end of the drilling tube.

[0007] As a preferred embodiment of the present invention, a transmission gear ring is fixedly installed on the outer side of the drive cylinder, a transmission gear is meshed with the bottom of the transmission gear ring, a drive horizontal shaft is fixedly installed in the middle of the transmission gear, the drive horizontal shaft is rotatably installed at the bottom of the second seat, a second motor is fixedly installed at the bottom of the second seat, and the drive end of the second motor and the shaft end of the drive horizontal shaft are fixedly installed.

[0008] As a preferred embodiment of the present invention, a first motor is fixedly installed at one end of the first base near the translation screw, and the drive end of the first motor is fixedly installed at one end of the translation screw.

[0009] As a preferred embodiment of the present invention, a fixing seat is fixedly installed at each of the four corners of the second seat, and a fixing bolt is movably engaged at the end of the fixing seat.

[0010] As a preferred embodiment of the present invention, the rock drilling grouting equipment further includes a limiting component, which includes an extension rod. One end of the extension rod is integrally formed with a positioning block, and a hand handle is vertically installed at the end of the extension rod away from the positioning block. The extension rod and the positioning block pass through an elongated groove and are movably engaged in the long borehole pipe. The positioning block is in contact with the outer end of the grouting inner cylinder.

[0011] As a preferred embodiment of the present invention, a limiting ring is fixedly provided at one end of the grouting inner cylinder away from the inner cover, and the limiting ring is movably engaged in the grouting inner cylinder.

[0012] As a preferred embodiment of the present invention, the rock drilling grouting equipment further includes a support plate, a support nut, and a plug. The end of the grouting inner cylinder near the limiting ring movably passes through the middle of the support plate. The support nut is threadedly installed at the end of the grouting inner cylinder near the limiting ring. The support plate is located between the limiting ring and the support nut. Fixing grooves corresponding to fixing bolts are opened at the four corners of the support plate. The plug is threadedly installed in the connector.

[0013] As a preferred embodiment of the present invention, the auxiliary support device includes a rotating support shaft, which is fixedly installed at one end of the first crossbeam near the first seat. A connecting top frame is rotatably installed at both ends of the rotating support shaft. A connecting bottom frame is provided at the end of the connecting top frame away from the rotating support shaft. An adjusting screw is rotatably installed at the end of the connecting top frame away from the rotating support shaft. The adjusting screw is threaded onto the connecting bottom frame at the end away from the connecting top frame. An auxiliary support seat is vertically installed at the end of the connecting bottom frame away from the connecting top frame. An auxiliary support bolt is movably inserted into the auxiliary support seat.

[0014] A method for using a rock drilling and grouting device based on rock permeability includes the following steps:

[0015] Step 1: In the initial state, the moving support is close to the first position. At this time, the entire drilling mechanism is close to the first position, and the drill bit is located inside the second position without passing through it.

[0016] When installing the grouting inner cylinder, the inner deep insertion rod is threaded into the inner groove of the thread. Then, the grouting inner cylinder is inserted into the long borehole pipe from one end, and the inner deep insertion rod is used to fully push the grouting inner cylinder into the long borehole pipe. The angle and position of the grouting inner cylinder are adjusted so that the connector and the long groove correspond, until the limit plate is movable and locked at one end of the long borehole pipe to assist in positioning the grouting inner cylinder. Then, the valve with the connecting bend is threaded into the connector to complete the installation of the grouting inner cylinder. At this time, the inner cap seals one end of the long borehole pipe to prevent rock fragments from entering the long borehole pipe during drilling and causing blockage of the subsequent grouting groove, which would affect grouting.

[0017] Step 2: Use a small drilling rig to drill a positioning groove at the rock grouting location to fit the fixing bolts. Then, install the second unit into the positioning groove using the fixing bolt threads to fix it, thereby positioning the drilling and grouting device at the rock grouting location.

[0018] Subsequently, rotate the top frame and bottom frame, and use a tool to rotate the adjusting screw to adjust the distance between the top frame and bottom frame until the auxiliary support seat contacts other parts of the rock. Then, use a small drilling rig to drill an auxiliary support mounting groove that matches the auxiliary support bolt. Pass the auxiliary support bolt through the auxiliary support seat and install it into the auxiliary support mounting groove to fix the auxiliary support device to the rock. In this way, the top frame, bottom frame and the entire drilling device form a triangular stable structure, which further improves the stability of the drilling device.

[0019] Step 3: By turning on the second motor to drive the horizontal shaft to rotate, the transmission gear drives the transmission ring and drive cylinder to rotate at high speed, which in turn drives the drilling tube, drill bit and grouting inner cylinder to rotate at high speed. In conjunction with turning on the first motor to drive the translation screw to rotate, the moving bracket moves and slides to one side of the second seat outside the guide crossbar. This controls the drilling tube, drill bit and grouting inner cylinder to move into the rock together, automatically drilling deep holes in the rock until the grouting hole is completed.

[0020] Step 4: Install the connecting hose on the connecting bend and connect the connecting hose to the output port of the grouting pump mechanism. The grouting pump mechanism will automatically adjust the grouting pressure and flow rate according to the different rock permeability.

[0021] Remove the inner deep insertion rod from the threaded inner groove, and pass the extension rod and positioning block through the long groove and movably engage them in the long drill pipe, and make the positioning block contact the outer end of the grouting inner cylinder;

[0022] Subsequently, by turning on the first motor to drive the translation screw to rotate in the opposite direction, the moving bracket is moved to slide on the outside of the guide crossbar towards one side of the first seat, thereby controlling the drilling tube to slowly move in the opposite direction and detach from the grouting hole. At the same time, the hand handle is manually held, and the head of the grouting inner cylinder gradually extends out of the drilling tube and drill bit to prevent the grouting inner cylinder from detaching from the grouting hole along with the drilling tube.

[0023] At the same time, the grouting pump mechanism and valves are turned on to deliver grout with appropriate pressure and flow rate into the grouting inner cylinder, and gradually discharge it from the inside of the grouting hole through the grouting groove at the head. While grouting, the drilling long pipe slowly detaches from the grouting hole. The drilling long pipe will always support the grouting hole during the grouting operation to prevent some high-permeability rocks from experiencing hole wall collapse or slag leakage, which could lead to hole blockage or premature loss of grout.

[0024] The grouting operation is complete when the long groove moves in the opposite direction to the valve at one end near the drill bit. Then, stop grouting, manually remove the valve, and install the plug thread in the connector to prevent the grout from leaking through the connector before it solidifies.

[0025] Subsequently, the positioning block continues to hold the outer end of the grouting inner cylinder against the grouting cylinder, and the drilling pipe and drill bit continue to move outward until the drilling pipe and drill bit are completely removed from the grouting hole. At this time, the grouting inner cylinder remains in the grouting hole and is completely separated from the drilling pipe.

[0026] Step 5: Remove the fixing bolts and remove all parts of the drilling and grouting device except for the grouting inner cylinder, inner cover, and limit ring from the rock grouting position;

[0027] At this point, the limiting ring is exposed on the outside of the rock. Then, the support plate is installed at the end of the grouting inner cylinder near the limiting ring, and the support nut is screwed on. Then, the fixing bolts are installed in the original positioning groove and the corresponding fixing groove, so that the fixing bolts fix the support plate, thereby conveniently fixing the grouting inner cylinder.

[0028] This enables integrated drilling and grouting operations in rocks.

[0029] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0030] 1. By setting up a drilling and grouting device, automatic deep drilling is performed at the rock grouting location, and grouting is then carried out on the grouting hole. At the same time as grouting, the drilling tube slowly detaches from the grouting hole. The drilling tube will support the grouting hole throughout the grouting operation, preventing the hole wall from collapsing or the leakage of slag in some highly permeable rocks, which would lead to hole blockage or premature loss of grout. This improves the effect and efficiency of the entire equipment for rock grouting.

[0031] 2. By setting an inner cap to seal one end of the borehole tube, rock fragments are prevented from entering the borehole tube during drilling and causing blockage during subsequent grouting.

[0032] 3. By setting up auxiliary support devices, the connecting top frame, connecting bottom frame and the entire drilling and grouting device form a triangular stable structure, which further improves the stability of the drilling and grouting device, thereby further improving the stability of subsequent rock drilling and grouting. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 This is a schematic diagram of the structure of the present invention.

[0035] Figure 2 This is a schematic diagram of the drilling and injection device in this invention.

[0036] Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle.

[0037] Figure 4 This is a schematic diagram of the partial structural connections of the drilling and injection device in this invention.

[0038] Figure 5 For the present invention Figure 4 Enlarged view of point B in the middle.

[0039] Figure 6 This is a schematic diagram of the drilling and injection mechanism in this invention.

[0040] Figure 7 For the present invention Figure 6 Enlarged view of point C in the middle.

[0041] Figure 8 For the present invention Figure 6 Enlarged view of point D in the middle.

[0042] Figure 9 This is a schematic diagram of the partial structural connections of the drilling and injection device in this invention.

[0043] Figure 10 This is a partial structural schematic diagram of the drilling and injection device in this invention.

[0044] Figure 11 For the present invention Figure 10 Enlarged view of point E in the middle.

[0045] Figure 12 This is a schematic diagram of the limiting component in this invention.

[0046] Figure 13 This is a schematic diagram of the grouting inner cylinder and the support plate in this invention.

[0047] Figure 14 For the present invention Figure 13 Enlarged view of point F in the middle.

[0048] Figure 15 This is a schematic diagram of the structure of the first crossbeam and the auxiliary support device in this invention.

[0049] In the diagram: 1. Drilling device; 2. Auxiliary support device; 3. Drilling mechanism; 4. Limiting component; 41. Extension rod; 42. Positioning block; 43. Hand handle; 5. Support plate; 51. Support nut; 52. Plug; 501. Fixing groove; 11. First crossbeam; 111. First seat; 12. Second crossbeam; 121. Second seat; 122. First bearing; 123. Drive cylinder; 124. Transmission gear ring; 125. Transmission gear; 1251. Drive cross shaft; 126. Second motor; 13. Guide crossbar; 131. Translation screw; 132. First motor; 14. Transfer... Moving support; 141, second bearing; 15, fixed seat; 151, fixing bolt; 31, drilling long pipe; 311, long clamping strip; 32, grouting inner cylinder; 321, grouting groove; 322, connector; 323, threaded inner groove; 324, limiting ring; 33, inner cover; 34, drill bit; 35, inner deep insertion rod; 351, limiting plate; 301, long groove; 36, valve; 361, connecting bend; 37, connecting hose; 21, rotating support shaft; 22, connecting top frame; 23, connecting bottom frame; 24, adjusting screw; 25, auxiliary support seat; 251, auxiliary support bolt. Detailed Implementation

[0050] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0051] Example: Figure 1-15 As shown, the present invention provides a rock drilling and grouting device based on rock permeability, including a drilling and grouting device 1. One end of the drilling and grouting device 1 is provided with an auxiliary support device 2. The drilling and grouting device 1 includes a first crossbeam 11. A second crossbeam 12 is fixedly installed at one end of the first crossbeam 11. A first seat 111 is vertically installed at the end of the first crossbeam 11 away from the second crossbeam 12. A second seat 121 is vertically installed at the end of the second crossbeam 12 away from the first crossbeam 11. Fixing seats 15 are fixedly installed at the four corners of the second seat 121. Fixing bolts 151 are movably engaged at the end of the fixing seats 15. A positioning groove that mates with the fixing bolts 151 is drilled at the rock grouting position using a small drilling machine. The second seat 121 is fixed by threading the fixing bolts 151 into the positioning groove, thereby positioning the drilling and grouting device 1 at the rock grouting position and improving the stability of subsequent rock drilling and grouting.

[0052] The auxiliary support device 2 includes a rotating support shaft 21, which is fixedly installed at one end of the first crossbeam 11 near the first seat 111. A connecting top frame 22 is rotatably mounted at both ends of the rotating support shaft 21. A connecting bottom frame 23 is provided at the end of the connecting top frame 22 away from the rotating support shaft 21. An adjusting screw 24 is rotatably mounted at the end of the connecting top frame 22 away from the rotating support shaft 21. The adjusting screw 24 is threaded onto the connecting bottom frame 23 at the end of the connecting bottom frame 23 away from the connecting top frame 22. An auxiliary support seat 25 is vertically mounted at the end of the connecting bottom frame 23 away from the connecting top frame 22. An auxiliary support bolt 251 is movably inserted into the auxiliary support seat 25. The device is controlled by rotating the connecting top frame 21. Connect the top frame 22 and the bottom frame 23, and use a tool to rotate the adjusting screw 24 to adjust the distance between the top frame 22 and the bottom frame 23 until the auxiliary support seat 25 contacts other parts of the rock. Then, use a small drilling rig to drill an auxiliary support mounting groove that matches the auxiliary support bolt 251. Pass the auxiliary support bolt 251 through the auxiliary support seat 25 and install it into the auxiliary support mounting groove to fix the auxiliary support device 2 to the rock. In this way, the top frame 22 and the bottom frame 23 form a triangular stable structure with the entire drilling and grouting device 1, which further improves the stability of the drilling and grouting device 1, thereby further improving the stability of subsequent rock drilling and grouting.

[0053] A guide crossbar 13 is fixedly installed at one end of the first seat 111 and the second seat 121. A translation screw 131 is rotatably installed at the other end of the first seat 111 and the second seat 121. A movable bracket 14 is slidably installed on the outside of the guide crossbar 13. The translation screw 131 is threaded through the movable bracket 14. A first motor 132 is fixedly installed at one end of the first seat 111 near the translation screw 131. The drive end of the first motor 132 is fixedly installed at one end of the translation screw 131. By turning on the first motor 132, the translation screw 131 is driven to rotate, causing the movable bracket 14 to slide and translate to one side of the second seat 121 on the outside of the guide crossbar 13. Conversely, by turning on the first motor 132, the translation screw 131 is driven to rotate in the opposite direction, causing the movable bracket 14 to slide and translate to one side of the first seat 111 on the outside of the guide crossbar 13.

[0054] The middle fixing bracket of the second bracket 121 is provided with a first bearing 122, the middle fixing bracket of the first bearing 122 is provided with a drive cylinder 123, the middle fixing bracket of the movable bracket 14 is provided with a second bearing 141, and a drilling mechanism 3 is provided between the drive cylinder 123 and the second bearing 141.

[0055] The drilling mechanism 3 includes a long drilling tube 31, and an elongated retaining strip 311 is integrally formed on the outer side of the long drilling tube 31. The long drilling tube 31 and the elongated retaining strip 311 are slidably engaged in the middle of the drive cylinder 123. The long drilling tube 31 can slide in the middle of the drive cylinder 123, and the drive cylinder 123 can be rotated by controlling the rotation of the drive cylinder 123.

[0056] One end of the drilling tube 31 is fixedly clamped to the middle of the second bearing 141. By driving the movable bracket 14 to slide horizontally, the drilling tube 31 is driven to slide horizontally in the middle of the drive cylinder 123.

[0057] The drilling tube 31 is provided with a grouting inner cylinder 32. An inner cover 33 is fixedly fastened at the end of the grouting inner cylinder 32 away from the second bearing 141. The inner cover 33 is slidably fastened in the drilling tube 31. The inner cover 33 blocks the end of the grouting inner cylinder 32 away from the second bearing 141 and seals one end of the drilling tube 31 to prevent rock fragments from entering the drilling tube 31 during drilling and causing subsequent grouting blockage. A grouting groove 321 is opened at the end of the grouting inner cylinder 32 near the inner cover 33. A drill bit 34 is fixedly fastened at the end of the drilling tube 31 away from the second bearing 141 by bolts.

[0058] A transmission gear ring 124 is fixedly installed on the outer side of the drive cylinder 123. A transmission gear 125 is meshed with the bottom of the transmission gear ring 124. A drive horizontal shaft 1251 is fixedly installed in the middle of the transmission gear 125. The drive horizontal shaft 1251 is rotatably installed at the bottom of the second seat 121. A second motor 126 is fixedly installed at the bottom of the second seat 121. The drive end of the second motor 126 and the shaft end of the drive horizontal shaft 1251 are fixedly installed. By turning on the second motor 126, the drive horizontal shaft 1251 is controlled to rotate, thereby driving the transmission gear 125 to drive the transmission gear ring 124 and the drive cylinder 123 to rotate at high speed, thereby driving the drilling tube 31 and the drill bit 34 to rotate at high speed. This, in conjunction with controlling the drilling tube 31 and the drill bit 34 to move into the rock, performs automatic deep drilling on the rock.

[0059] The grouting inner cylinder 32 has an integrally formed connector 322 at the end away from the inner cover 33. A valve 36 is threaded into the connector 322. The side of the drilling tube 31 has an elongated groove 301 corresponding to the valve 36. A connecting elbow 361 is fixedly installed at the end of the valve 36. A connecting hose 37 is threaded into the end of the connecting elbow 361 away from the valve 36. The grouting inner cylinder 32 has a threaded inner groove 323 at the end away from the inner cover 33. An inner deep insertion rod 35 is threaded into the inner groove 323. A limit plate 351 is fixedly installed at the outer end of the inner deep insertion rod 35. The limit plate 351 is movably engaged with the drilling tube 31. When installing the grouting inner cylinder 32, the inner deep insertion rod 35 is threaded into the threaded inner groove 323. Then, the grouting inner cylinder 32 is inserted into the drilling long pipe 31 from one end, and the inner deep insertion rod 35 is used to completely push the grouting inner cylinder 32 into the drilling long pipe 31. The angle position of the grouting inner cylinder 32 is adjusted so that the connector 322 and the elongated groove 301 correspond, until the limiting plate 351 is movably engaged with one end of the drilling long pipe 31 to assist in positioning the grouting inner cylinder 32. Then, the valve 36 with the connecting bend 361 is threaded into the connector 322 to realize the installation of the grouting inner cylinder 32.

[0060] The rock drilling and grouting equipment also includes a limiting component 4, which includes an extension rod 41. One end of the extension rod 41 is integrally formed with a positioning block 42. The end of the extension rod 41 away from the positioning block 42 is vertically mounted with a hand handle 43. The extension rod 41 and the positioning block 42 pass through the elongated groove 301 and are movably engaged in the drilling tube 31. The positioning block 42 is in contact with the outer end of the grouting inner cylinder 32. When drilling is completed and the drilling tube 31 needs to be slowly moved in the reverse direction to detach from the drilling hole, the extension rod 41 and the positioning block 42 are passed through the elongated groove 301 and movably engaged in the drilling tube 31, and the positioning block 42 is made to contact the outer end of the grouting inner cylinder 32. The hand handle 43 is manually held, and the drilling tube 31 is slowly moved in the reverse direction to detach from the drilling hole. When this happens, the head of the grouting inner cylinder 32 gradually extends out of the drilling tube 31 to prevent the grouting inner cylinder 32 from detaching from the drilling hole along with the drilling tube 31.

[0061] A limiting ring 324 is fixedly fastened at one end of the grouting inner cylinder 32 away from the inner cover 33. The limiting ring 324 is movably engaged within the grouting inner cylinder 32. The rock drilling grouting equipment also includes a support plate 5, a support nut 51, and a plug 52. The end of the grouting inner cylinder 32 near the limiting ring 324 movably passes through the middle of the support plate 5. The support nut 51 is threadedly installed at the end of the grouting inner cylinder 32 near the limiting ring 324. The support plate 5 is located between the limiting ring 324 and the support nut 51. Each of the four corners of the support plate 5 has a fixing screw. After grouting is completed and the drilled pipe 31 is removed from the drill hole, the grouting inner cylinder 32 is positioned inside the grouting hole, with the limiting ring 324 exposed on the outside of the rock. Then, the support plate 5 is installed at one end of the grouting inner cylinder 32 near the limiting ring 324, and the support nut 51 is screwed on. Subsequently, the fixing bolt 151 is installed at the original positioning groove in conjunction with the corresponding fixing groove 501, so that the fixing bolt 151 fixes the support plate 5, thereby conveniently fixing the grouting inner cylinder 32.

[0062] The plug 52 is threaded into the connector 322. After grouting is completed, the connector 322 is sealed by the plug 52 to prevent leakage of grout through the connector 322 before it solidifies.

[0063] A method for using a rock drilling and grouting device based on rock permeability includes the following steps:

[0064] Step 1: In the initial state, the movable support 14 is close to the position of the first seat 111. At this time, the entire drilling mechanism 3 is close to the position of the first seat 111, and the drill bit 34 is located inside the second seat 121 without passing through the second seat 121.

[0065] When installing the grouting inner cylinder 32, the inner deep insertion rod 35 is threaded into the threaded inner groove 323. Then, the grouting inner cylinder 32 is inserted into the drilling long pipe 31 from one end, and the inner deep insertion rod 35 is used to completely push the grouting inner cylinder 32 into the drilling long pipe 31. The angle position of the grouting inner cylinder 32 is adjusted so that the connector 322 and the long groove 301 correspond, until the limiting plate 351 is movably engaged with one end of the drilling long pipe 31 to assist in positioning the grouting inner cylinder 32. Then, the valve 36 with the connecting bend 361 is threaded into the connector 322 to complete the installation of the grouting inner cylinder 32. At this time, the inner cover 33 seals one end of the drilling long pipe 31 to prevent rock fragments from entering the drilling long pipe 31 during drilling and causing blockage of the subsequent grouting groove 321, which affects grouting.

[0066] Step 2: Use a small drilling rig to drill a positioning groove at the rock grouting location to match the fixing bolt 151. Fix the second seat 121 in the positioning groove by threading the fixing bolt 151, thereby positioning the drilling and grouting device 1 at the rock grouting location.

[0067] Subsequently, the top frame 22 and the bottom frame 23 are rotated and the adjusting screw 24 is rotated to adjust the distance between the top frame 22 and the bottom frame 23 until the auxiliary support seat 25 contacts other parts of the rock. Then, the auxiliary support mounting groove that mates with the auxiliary support bolt 251 is drilled using a small drilling rig. The auxiliary support bolt 251 is passed through the auxiliary support seat 25 and installed into the auxiliary support mounting groove to fix the auxiliary support device 2 to the rock. In this way, the top frame 22, the bottom frame 23 and the entire drilling device 1 form a triangular stable structure, which further improves the stability of the drilling device 1.

[0068] Step 3: By turning on the second motor 126, the drive shaft 1251 is rotated, which in turn drives the transmission gear 125 to drive the transmission gear ring 124 and the drive cylinder 123 to rotate at high speed. This causes the drilling tube 31, the drill bit 34, and the grouting inner cylinder 32 to rotate at high speed together. In conjunction with turning on the first motor 132, the translation screw 131 is rotated, which causes the moving bracket 14 to slide and translate on the outside of the guide crossbar 13 towards one side of the second seat 121. This controls the drilling tube 31, the drill bit 34, and the grouting inner cylinder 32 to move into the rock together, automatically drilling deep holes in the rock until the grouting hole is completed.

[0069] Step 4: Install the connecting hose 37 onto the connecting bend 361, and connect the connecting hose 37 to the output port of the grouting pump mechanism. The pressure and flow rate of the grout delivered by the grouting pump mechanism will be automatically adjusted according to the different permeability of the rock.

[0070] Remove the inner deep insertion rod 35 from the threaded inner groove 323, and pass the extension rod 41 and the positioning block 42 through the long groove 301 and movably engage them in the drilling long pipe 31, and make the positioning block 42 and the outer end of the grouting inner cylinder 32 contact each other.

[0071] Subsequently, by turning on the first motor 132 to drive the translation screw 131 to rotate in the opposite direction, the moving bracket 14 is driven to slide in the direction of the guide crossbar 13 to the side of the first seat 111, thereby controlling the drilling tube 31 to slowly move in the opposite direction and detach from the grouting hole. At the same time, the hand handle 43 is manually held, and the head of the grouting inner cylinder 32 gradually extends out of the drilling tube 31 and the drill bit 34 to prevent the grouting inner cylinder 32 from detaching from the grouting hole along with the drilling tube 31.

[0072] At the same time, the grouting pump mechanism and valve 36 are turned on to deliver grout with appropriate pressure and flow rate into the grouting inner cylinder 32, and gradually discharge it from the inside of the grouting hole through the grouting groove 321 at the head. While grouting, the drilling long pipe 31 slowly detaches from the grouting hole. The drilling long pipe 31 will always support the grouting hole during the grouting operation to prevent some high permeability rocks from collapsing or leaking slag, which would cause the hole to be blocked or the grout to be lost in advance.

[0073] The grouting operation is completed when the end of the elongated groove 301 near the drill bit 34 moves in the opposite direction to the valve 36. Then, the grouting is stopped, the valve 36 is manually disassembled, and the plug 52 is threaded into the connector 322 to prevent the grout from leaking through the connector 322 before it solidifies.

[0074] Subsequently, the positioning block 42 continues to press against the outer end of the grouting inner cylinder 32, and continues to control the drilling long pipe 31 and the drill bit 34 to move outward until the drilling long pipe 31 and the drill bit 34 are completely moved out of the grouting hole. At this time, the grouting inner cylinder 32 remains in the grouting hole and the grouting inner cylinder 32 is completely separated from the drilling long pipe 31.

[0075] Step 5: Remove the fixing bolts 151 and remove all parts of the drilling and injection device 1 except for the grouting inner cylinder 32, the inner cover 33, and the limiting ring 324 from the rock grouting position.

[0076] At this time, the limiting ring 324 is exposed on the outside of the rock. Then, the support plate 5 is installed at one end of the grouting inner cylinder 32 near the limiting ring 324, and the support nut 51 is screwed on. Then, the fixing bolt 151 is installed in the original positioning groove and the corresponding fixing groove 501, so that the fixing bolt 151 fixes the support plate 5, thereby conveniently fixing the grouting inner cylinder 32.

[0077] This enables integrated drilling and grouting operations in rocks.

[0078] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rock drilling and grouting device based on rock permeability, comprising a drilling and grouting apparatus (1), characterized in that: The drilling and injection device (1) is provided with an auxiliary support device (2) at one end. The drilling and injection device (1) includes a first crossbeam (11). A second crossbeam (12) is fixedly installed at one end of the first crossbeam (11). A first seat (111) is vertically installed at the end of the first crossbeam (11) away from the second crossbeam (12). A second seat (121) is vertically installed at the end of the second crossbeam (12) away from the first crossbeam (11). A guide crossbar (13) is fixedly installed at one end of the first seat (111) and the second seat (121). A translation screw (131) is rotatably mounted on the other end of the seat (121). A movable bracket (14) is slidably mounted on the outer side of the guide crossbar (13). The translation screw (131) is threaded through the movable bracket (14). A first bearing (122) is fixedly mounted in the middle of the second seat (121). A drive cylinder (123) is fixedly mounted in the middle of the first bearing (122). A second bearing (141) is fixedly mounted in the middle of the movable bracket (14). A drilling mechanism (3) is provided between the drive cylinder (123) and the second bearing (141). The drilling and grouting mechanism (3) includes a long drilling tube (31), on the outer side of which is integrally formed a long clamping strip (311). The long clamping strip (311) is slidably clamped to the middle of the drive cylinder (123). One end of the long drilling tube (31) is fixedly clamped to the middle of the second bearing (141). A grouting inner cylinder (32) is provided in the long drilling tube (31). An inner cover (33) is fixedly clamped at the end of the grouting inner cylinder (32) away from the second bearing (141). The inner cover (33) is slidably clamped in the long drilling tube (31). A grouting groove (321) is opened at the end of the grouting inner cylinder (32) near the inner cover (33). A drill bit (34) is fixedly clamped at the end of the long drilling tube (31) away from the second bearing (141) by bolts. The grouting inner cylinder (32) has an integrally formed connector (322) at the end away from the inner cover (33). A valve (36) is threaded in the connector (322). The side of the drilling tube (31) has an elongated groove (301) corresponding to the valve (36). A connecting bend (361) is fixedly installed at the end of the valve (36). A connecting hose (37) is threaded at the end of the connecting bend (361) away from the valve (36). A threaded inner groove (323) is opened at the end of the grouting inner cylinder (32) away from the inner cover (33). An inner deep insertion rod (35) is threaded in the inner groove (323). A limit plate (351) is fixedly installed at the outer end of the inner deep insertion rod (35). The limit plate (351) is movably engaged with one end of the drilling tube (31).

2. The rock drilling and grouting equipment based on rock permeability according to claim 1, characterized in that: A transmission gear ring (124) is fixedly installed on the outer side of the drive cylinder (123). A transmission gear (125) is meshed with the bottom of the transmission gear ring (124). A drive horizontal shaft (1251) is fixedly installed in the middle of the transmission gear (125). The drive horizontal shaft (1251) is rotatably installed on the bottom of the second seat (121). A second motor (126) is fixedly installed on the bottom of the second seat (121). The drive end of the second motor (126) and the shaft end of the drive horizontal shaft (1251) are fixedly installed.

3. The rock drilling and grouting equipment based on rock permeability according to claim 2, characterized in that: The first motor (132) is fixedly installed at one end of the first base (111) near the translation screw (131), and the driving end of the first motor (132) and the translation screw (131) are fixedly installed.

4. A rock drilling and grouting device based on rock permeability according to claim 3, characterized in that: The second base (121) is fixedly installed at each of its four corners with a fixing seat (15), and the end of the fixing seat (15) is movably secured with a fixing bolt (151).

5. A rock drilling and grouting device based on rock permeability according to claim 4, characterized in that: The rock drilling grouting equipment also includes a limiting component (4), which includes an extension rod (41). One end of the extension rod (41) is integrally formed with a positioning block (42). A hand-held rod (43) is vertically installed at the end of the extension rod (41) away from the positioning block (42). The extension rod (41) and the positioning block (42) pass through the elongated groove (301) and are movably engaged in the drilling long tube (31). The positioning block (42) is in contact with the outer end of the grouting inner cylinder (32).

6. A rock drilling and grouting device based on rock permeability according to claim 5, characterized in that: A limiting ring (324) is provided at one end of the grouting inner cylinder (32) away from the inner cover (33), and the limiting ring (324) is movably engaged in the grouting inner cylinder (32).

7. A rock drilling and grouting device based on rock permeability according to claim 6, characterized in that: The rock drilling grouting equipment also includes a support plate (5), a support nut (51), and a plug (52). The end of the grouting inner cylinder (32) near the limiting ring (324) moves through the middle of the support plate (5). The support nut (51) is threadedly installed at the end of the grouting inner cylinder (32) near the limiting ring (324). The support plate (5) is located between the limiting ring (324) and the support nut (51). The four corners of the support plate (5) are provided with fixing grooves (501) corresponding to the fixing bolts (151). The plug (52) is threadedly installed in the connector (322).

8. A rock drilling and grouting device based on rock permeability according to claim 7, characterized in that: The auxiliary support device (2) includes a rotating support shaft (21), which is fixedly installed at one end of the first crossbeam (11) near the first seat (111). Both ends of the rotating support shaft (21) are rotatably mounted with a connecting top frame (22). The end of the connecting top frame (22) away from the rotating support shaft (21) is provided with a connecting bottom frame (23). The end of the connecting top frame (22) away from the rotating support shaft (21) is rotatably mounted with an adjusting screw (24). The end of the adjusting screw (24) away from the connecting top frame (22) is threaded onto the connecting bottom frame (23). The end of the connecting bottom frame (23) away from the connecting top frame (22) is vertically mounted with an auxiliary support seat (25). An auxiliary support bolt (251) is movably inserted into the auxiliary support seat (25).

9. A method of using the rock drilling and grouting equipment based on rock permeability as described in claim 8, characterized in that, Includes the following steps: Step 1: In the initial state, the moving bracket (14) is close to the position of the first seat (111). At this time, the entire drilling mechanism (3) is close to the position of the first seat (111), and the drill bit (34) is located inside the second seat (121) without passing through the second seat (121). When installing the grouting inner cylinder (32), thread the inner deep insertion rod (35) into the threaded inner groove (323). Then, insert the grouting inner cylinder (32) into the long borehole pipe (31) from one end, and use the inner deep insertion rod (35) to fully insert the grouting inner cylinder (32) into the long borehole pipe (31). Adjust the angle of the grouting inner cylinder (32) so that the connector (322) and the long groove (301) correspond, until the limiting plate ( 351) The movable clip is attached to one end of the drilling long pipe (31) to assist in positioning the grouting inner cylinder (32). Then, the valve (36) with the connecting bend (361) is threaded into the connector (322) to realize the installation of the grouting inner cylinder (32). At this time, the inner cover (33) seals one end of the drilling long pipe (31) to prevent rock chips from entering the drilling long pipe (31) during drilling, causing blockage of the subsequent grouting groove (321) and affecting grouting. Step 2: Use a small drilling rig to drill a positioning groove that matches the fixing bolt (151) at the rock grouting location. Then, fix the second seat (121) in the positioning groove by threading the fixing bolt (151) to position the drilling and grouting device (1) at the rock grouting location. Subsequently, rotate the top frame (22) and bottom frame (23) and use a tool to rotate the adjusting screw (24) to adjust the distance between the top frame (22) and bottom frame (23) until the auxiliary support seat (25) and other parts of the rock are in contact. Then, use a small drilling rig to drill the auxiliary support mounting groove that matches the auxiliary support bolt (251), pass the auxiliary support bolt (251) through the auxiliary support seat (25) and install it into the auxiliary support mounting groove to achieve the fixation between the auxiliary support device (2) and the rock. In this way, the top frame (22) and bottom frame (23) form a triangular stable structure with the entire drilling device (1), which further improves the stability of the drilling device (1). Step 3: By turning on the second motor (126), the drive shaft (1251) is rotated, which drives the transmission gear (125) to drive the transmission gear ring (124) and the drive cylinder (123) to rotate at high speed, thereby driving the drilling tube (31), the drill bit (34) and the grouting inner cylinder (32) to rotate at high speed together. In conjunction with turning on the first motor (132), the translation screw (131) is rotated, which drives the moving bracket (14) to slide on the outside of the guide crossbar (13) towards the side of the second seat (121). The drilling tube (31), the drill bit (34) and the grouting inner cylinder (32) are controlled to move into the rock together to automatically drill deep holes in the rock until the grouting hole is completed. Step 4: Install the connecting hose (37) on the connecting bend (361) and connect the connecting hose (37) to the output port of the grouting pump mechanism. The pressure and flow rate of the grouting pump mechanism will be automatically adjusted according to the different permeability of the rock. Remove the inner deep insertion rod (35) from the threaded inner groove (323), and pass the extension rod (41) and positioning block (42) through the long groove (301) and movably snap them into the drilling long pipe (31), and make the positioning block (42) contact the outer end of the grouting inner cylinder (32); Subsequently, by turning on the first motor (132) to drive the translation screw (131) to rotate in the opposite direction, the moving bracket (14) is driven to slide in the direction of the first seat (111) on the outside of the guide crossbar (13), thereby controlling the drilling tube (31) to slowly move in the opposite direction and get away from the grouting hole. At the same time, the hand handle (43) is manually held, and the head of the grouting inner cylinder (32) gradually extends out of the drilling tube (31) and the drill bit (34) to prevent the grouting inner cylinder (32) from getting away from the grouting hole along with the drilling tube (31). At the same time, the grouting pump mechanism and valve (36) are turned on to deliver grout with appropriate pressure and flow rate to the grouting inner cylinder (32), and gradually discharge it from the inside of the grouting hole through the grouting groove (321) at the head. At the same time as grouting, the drilling long pipe (31) slowly detaches from the grouting hole. The drilling long pipe (31) will always support the grouting hole during the grouting operation to prevent the high permeability rock from collapsing the hole wall or leaking slag, which would cause the hole to be blocked or the grout to be lost in advance. The grouting operation is completed when the end of the long groove (301) near the drill bit (34) moves in the opposite direction to the valve (36). Then, the grouting is stopped, the valve (36) is manually disassembled, and the plug (52) is threaded into the connector (322) to prevent the grout from leaking through the connector (322) before it solidifies. Subsequently, the positioning block (42) continues to press against the outer end of the grouting inner cylinder (32), and the drilling tube (31) and drill bit (34) continue to move outward until the drilling tube (31) and drill bit (34) are completely moved out of the grouting hole. At this time, the grouting inner cylinder (32) remains in the grouting hole and the grouting inner cylinder (32) is completely separated from the drilling tube (31). Step 5: Remove the fixing bolts (151) and remove all parts of the drilling and grouting device (1) except for the grouting inner cylinder (32), inner cover (33), and limiting ring (324) from the rock grouting position; At this time, the limiting ring (324) is exposed on the outside of the rock. Then, the support plate (5) is installed on the end of the grouting inner cylinder (32) near the limiting ring (324), and the support nut (51) is screwed on. Then, the fixing bolt (151) is installed in the original positioning groove and the corresponding fixing groove (501) is matched to fix the support plate (5), so that the grouting inner cylinder (32) can be conveniently fixed. This enables integrated drilling and grouting operations in rocks.

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