High-pressure rotary sealer for deep hole grouting

Abstract

The invention provides a high-pressure rotary sealer for deep hole grouting, and belongs to the technical field of deep hole grouting sealing. The high-pressure rotary sealer for deep hole grouting comprises a sealing base, a first anchor nail is arranged on the sealing base, a hole wall finishing mechanism is arranged on the sealing base and comprises a following rotating base and a rotating table, the following rotating base is rotationally arranged on the inner wall of the sealing base, a lifting table is arranged in the following rotating base, and a first anchor nail is arranged on the first anchor nail. A plurality of avoiding grooves are formed in the lifting table, and the rotating table is rotationally arranged in the lifting table. According to the device, the hole wall trimming mechanism is arranged, the hole wall is ground and trimmed through trimming wings, the interior of the hole wall becomes smooth under friction of the trimming wings, subsequent sealing operation is facilitated, after the trimming wings work, the trimming wings are retracted into an avoiding groove, a lifting table is moved upwards, the lifting table returns to the interior of a follow-up rotating seat, and then the hole wall is trimmed. And subsequent mud pollution is avoided.

Description

Technical Field

[0001] This invention relates to the field of deep hole grouting and sealing technology, and more specifically, to a high-pressure rotary sealer for deep hole grouting. Background Technology

[0002] In deep hole grouting and soil and rock reinforcement projects, it is necessary to perform high-pressure sealing of the annular gap between the borehole wall and the construction device to prevent high-pressure grout from surging and leaking out along the gap during grouting, thus ensuring stable grouting pressure and construction safety. In existing technologies, the sealing device for the borehole wall mostly adopts a fixed sealing structure, which mainly includes a sealing seat and a sealing airbag. After the entire device is lowered into the preset position in the borehole, the sealing airbag is inflated by inflation to squeeze and fit against the borehole wall, and the annular gap is sealed by the extrusion force between the airbag and the borehole wall.

[0003] However, the inner wall of natural boreholes is uneven, has a large deviation in roundness, and has a rough surface. When the airbag is directly bonded to the rough borehole wall for sealing, there are gaps in the sealing contact surface, which can easily lead to slurry leakage and pressure loss. The leakage problem is particularly prominent under high pressure conditions, which cannot meet the sealing requirements of deep hole high-pressure grouting. At the same time, the rough borehole wall can easily scratch the surface of the airbag, causing the airbag to rupture and fail, which greatly reduces the service life of the device. Summary of the Invention

[0004] To overcome the above deficiencies, the present invention provides a high-pressure rotary seal for deep hole grouting that overcomes or at least partially solves the above technical problems.

[0005] This invention is implemented as follows:

[0006] This invention provides a high-pressure rotary seal for deep hole grouting, including a sealing seat, a first anchor pin disposed on the sealing seat, and a hole wall trimming mechanism disposed on the sealing seat. The hole wall trimming mechanism includes...

[0007] A rotating seat is rotatably mounted on the inner wall of the sealing seat. The interior of the rotating seat is provided with a lifting platform, and the lifting platform is provided with several clearance grooves.

[0008] A rotating platform is rotatably disposed inside a lifting platform. Several trimming wings are hinged to the bottom of the rotating platform. Arc-shaped guide grooves are provided at the bottom of the trimming wings. A fixed platform is fixed inside the lifting platform. Several guide columns are fixed to the top of the fixed platform. The number of guide columns is the same as the number of arc-shaped guide grooves. The guide columns are fitted inside the arc-shaped guide grooves.

[0009] In a preferred embodiment, a first gear ring is fixedly provided on the top of the rotary table, and a first gear is rotatably provided on the inner wall of the lifting table, the first gear meshing with the first gear ring.

[0010] In a preferred embodiment, a sleeve is coaxially fixed to the top of the first gear, and a spiral groove drive rod is slidably provided on the top wall of the lifting platform, the spiral groove drive rod and the sleeve being threadedly connected.

[0011] In a preferred embodiment, a mounting plate is fixedly mounted on the top of the spiral groove drive rod, a first heavy-duty spring is provided between the mounting plate and the lifting platform, a fixing ring is fixedly mounted inside the rotating seat, a hydraulic cylinder is provided on the fixing ring, and the output end of the hydraulic cylinder is fixedly connected to the mounting plate.

[0012] In a preferred embodiment, a second gear ring is coaxially fixed to the surface of the rotating seat, a second gear is rotatably arranged inside the sealing seat, the second gear meshes with the second gear ring, a motor is fixed to the top of the sealing seat, and the output end of the motor is fixedly connected to the second gear.

[0013] In a preferred embodiment, a plurality of first limiting rods are fixedly provided on the inner wall of the rotating seat, the lifting platform is slidably sleeved on the surface of the first limiting rods, a stop rod is fixedly provided on the outer surface of the lifting platform, and a stop block is fixedly provided on the first limiting rod.

[0014] In a preferred embodiment, a sealing mechanism is provided below the lifting platform. The sealing mechanism includes a support platform, which is located below the fixed platform. An annular airbag is provided on the surface of the support platform, and the outer diameter of the support platform is larger than the inner diameter of the rotating seat.

[0015] In a preferred embodiment, an air cylinder is fixedly mounted on the top of the support platform, a piston bolt is slidably mounted inside the air cylinder, a piston rod is fixedly mounted on the top of the piston bolt, the top of the piston rod is fixedly connected to the bottom of the fixed platform, and a second heavy-duty spring is provided between the piston bolt and the inner top wall of the air cylinder.

[0016] In a preferred embodiment, a receiving box is fixedly provided on the inner wall of the rotating seat, the receiving box has a receiving cavity inside, a second limiting rod is fixedly provided on the inner wall of the receiving cavity, and a second anchor is slidably sleeved on the surface of the second limiting rod.

[0017] In a preferred embodiment, the bottom of the receiving box is provided with a through groove, the top of the support platform is fixedly provided with a top rod, a toothed plate is slidably provided inside the through groove, a third gear is rotatably provided inside the receiving box, the toothed plate and the third gear mesh with each other, a lead screw is coaxially fixed on the third gear, and the lead screw is threaded inside the second anchor.

[0018] The present invention provides a high-pressure rotary seal for deep hole grouting, the advantages of which include:

[0019] 1. By setting up a hole wall trimming mechanism, the hole wall is ground and trimmed by trimming wings. The friction of the trimming wings makes the inside of the hole wall smooth, which facilitates the subsequent sealing operation. After the trimming wings have finished working, the trimming wings are retracted into the clearance groove, and the lifting platform is moved upward so that the lifting platform returns to the inside of the rotating seat to avoid subsequent mud contamination.

[0020] 2. By setting up a sealing mechanism, after the borehole wall is treated, the lifting platform is moved upward, which in turn moves the support platform upward until the support platform contacts the bottom of the rotating seat. At this point, the support platform can no longer move upward, and the annular airbag begins to expand until the annular airbag is squeezed into contact with the treated borehole wall, tightly fitting the smooth borehole wall after finishing, thereby achieving a seal on the borehole wall and avoiding the problem of mud rushing up and causing waste. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the overall three-dimensional structure provided by an embodiment of the present invention.

[0023] Figure 2 A bottom-view overall structural diagram is provided for embodiments of the present invention.

[0024] Figure 3 A partial cross-sectional view of the sealing seat and the rotating seat is provided for embodiments of the present invention.

[0025] Figure 4 Exploded views of the sealing seat and the rotating seat are provided for embodiments of the present invention.

[0026] Figure 5 A structural schematic diagram of the lifting platform is provided for embodiments of the present invention.

[0027] Figure 6 A schematic diagram of the stop rod is provided for embodiments of the present invention.

[0028] Figure 7 A partial sectional view of the lifting platform is provided for embodiments of the present invention.

[0029] Figure 8 A partial cross-sectional view of the sleeve is provided for embodiments of the present invention.

[0030] Figure 9 An exploded view of the rotating seat and trimmer wing is provided for an embodiment of the present invention.

[0031] Figure 10 A partial cross-sectional view of the air cylinder is provided for embodiments of the present invention.

[0032] Figure 11 A partial cross-sectional view of the housing is provided for an embodiment of the present invention.

[0033] In the diagram: 1. Sealing seat; 2. First anchor bolt; 301. Rotating seat; 302. Lifting platform; 303. Clearance groove; 304. Rotating table; 305. Trimming wing; 306. Arc-shaped guide groove; 307. Fixed platform; 308. Guide column; 309. First gear ring; 310. First gear; 311. Sleeve; 312. Spiral groove drive rod; 313. Mounting plate; 314. First heavy-duty spring; 315. Fixing ring; 316. Hydraulic cylinder; 317. Second gear ring; 31 8. Second gear; 319. Motor; 320. First limiting rod; 321. Stop rod; 322. Stop block; 401. Support platform; 402. Annular airbag; 403. Air cylinder; 404. Piston bolt; 405. Piston rod; 406. Second heavy spring; 407. Receiving box; 408. Receiving cavity; 409. Second limiting rod; 410. Second anchor pin; 411. Through groove; 412. Push rod; 413. Gear plate; 414. Third gear; 415. Lead screw. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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, 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.

[0035] Reference Figures 1-11This invention provides a technical solution: a high-pressure rotary sealer for deep hole grouting, comprising a sealing seat 1, a first anchor 2 disposed on the sealing seat 1, and a hole wall trimming mechanism disposed on the sealing seat 1. The hole wall trimming mechanism includes a follower seat 301 and a rotating platform 304. The follower seat 301 is rotatably disposed on the inner wall of the sealing seat 1 via a rotary support bearing. A lifting platform 302 is axially slidably disposed inside the follower seat 301. The lifting platform 302 has several clearance grooves 303. The rotating platform 304 is rotatably disposed inside the lifting platform 302. Several trimming wings 3 are hinged to the bottom of the rotating platform 304 via hinge pins. 05. The bottom of the trimming wing 305 is provided with an arc-shaped guide groove 306. A fixed platform 307 is fixedly installed inside the lifting platform 302. Several guide posts 308 are fixedly installed on the top of the fixed platform 307. The number of guide posts 308 is the same as the number of arc-shaped guide grooves 306. The guide posts 308 are fitted inside the arc-shaped guide grooves 306. The drill rod is installed inside the sealing seat 1 through a sealing structure. The sealing structure is provided with at least one set of sealing rings. The sealing rings are fitted on the outer wall of the drill rod. The inner circumferential surface of the sealing rings forms a dynamic sealing fit with the outer wall of the drill rod. The outer circumferential surface of the sealing rings is fixed or floatingly fitted with the sealing shell. The sealing rings are elastic. The sealing element or pressure self-tightening sealing structure relies on its own elasticity or medium pressure to keep the inner circumferential surface in constant contact with the outer wall of the drill pipe, thereby forming a seal between the drill pipe and the sealing shell. This is existing technology and will not be elaborated here. By setting a hole wall trimming mechanism, the sealing seat 1 is placed above the pre-drilled hole and fixed by the first anchor 2. The lifting platform 302 is moved downward until it reaches the preset position. At this time, the trimming wing 305 is located below the rotating seat 301, and the rotating table 304 begins to rotate, causing the hinge point between the trimming wing 305 and the rotating table 304 to rotate around the center of the rotating table 304. As the guide column 308 is pressed against the inner wall of the arc-shaped guide groove 306, the trimming wing 305 swings until it passes through the clearance groove 303 and extends outward. It then rotates with the rotating base 301, thereby grinding and trimming the hole wall through the trimming wing 305. Under the friction of the trimming wing 305, the inside of the hole wall becomes smooth, which facilitates the subsequent sealing operation. After the trimming wing 305 has finished working, it is retracted into the clearance groove 303, and the lifting platform 302 is moved upward so that it returns to the inside of the rotating base 301 to avoid subsequent contamination by mud.

[0036] Reference Figures 1-11 A first gear ring 309 is fixedly provided on the top of the rotary table 304, and a first gear 310 is rotatably provided on the inner wall of the lifting table 302. The first gear 310 and the first gear ring 309 mesh with each other. By setting the first gear ring 309 and the first gear 310, a stable gear meshing transmission pair is formed. When the first gear 310 rotates, it drives the first gear ring 309 to rotate, thereby driving the rotary table 304 to rotate.

[0037] Reference Figures 1-11 A sleeve 311 is coaxially fixed to the top of the first gear 310. A spiral groove drive rod 312 is slidably provided on the top wall of the lifting platform 302. The spiral groove drive rod 312 is threadedly connected to the threaded groove inside the sleeve 311. The spiral groove drive rod 312 and the spiral groove inside the sleeve 311 form a spiral transmission engagement. The spiral groove drive rod 312 can only move relative to the sleeve 311 in the axial direction, and can drive the sleeve 311 to rotate when moving axially. An axial limiting structure is provided between the spiral groove drive rod 312 and the sleeve 311. To prevent the two from separating, a mounting plate 313 is fixed to the top of the spiral groove drive rod 312. A first heavy-duty spring 314 is provided between the mounting plate 313 and the lifting platform 302. A fixing ring 315 is fixed inside the rotating seat 301. A hydraulic cylinder 316 is provided on the fixing ring 315. The output end of the hydraulic cylinder 316 is fixedly connected to the mounting plate 313. When no external force is applied, the preload of the first heavy-duty buffer spring is sufficient to offset the total weight of the lifting platform 302 and its auxiliary components, maintaining the initial high-level retracted state of the lifting platform 302. In this state, by setting the spiral groove drive rod 312 and sleeve 311, the user activates the hydraulic cylinder 316, which drives the mounting plate 313 to move downward, thereby driving the lifting platform 302 to move downward until it reaches the preset position. The lifting platform 302 then stops moving. At this point, the hydraulic cylinder 316 is continued to be driven, the first heavy-duty spring 314 is compressed, and the spiral groove drive rod 312 moves downward relative to the sleeve 311. Due to the threaded connection between the spiral groove drive rod 312 and the sleeve 311, the sleeve 311 drives the first gear 3... 10 rotates, and the first gear 310 and the first gear ring 309 mesh together, so that the first gear ring 309 drives the rotary table 304 to rotate, and the trimming wing 305 extends outward. Conversely, when the trimming wing 305 finishes its work, it drives the hydraulic cylinder 316 in the opposite direction. At this time, under the action of the first heavy spring 314, the lifting table 302 does not move, and the spiral groove drive rod 312 moves upward relative to the sleeve 311 until the trimming wing 305 is fully retracted, and then the lifting table 302 begins to move upward.

[0038] Reference Figures 1-11A second gear ring 317 is coaxially fixed to the surface of the rotating base 301. A second gear 318 is rotatably installed inside the sealing base 1. The second gear 318 meshes with the second gear ring 317. A motor 319 is fixed to the top of the sealing base 1 by bolts and a mounting plate. The output end of the motor 319 is fixedly connected to the second gear 318 through a coupling. By setting the second gear 318 and the second gear ring 317, when the trimming wing 305 is extended, the motor 319 is started, driving the second gear 318 to rotate. Through the meshing connection of the second gear 318 and the second gear ring 317, the second gear ring 317 is driven to rotate with the rotating base 301. Thus, the trimming wing 305 processes the inner wall of the hole, achieving all-round grinding and trimming of the drilled hole wall, ensuring consistent smoothness of the hole wall, and improving the subsequent sealing and bonding effect.

[0039] Reference Figures 1-11 A number of first limiting rods 320 are fixedly provided on the inner wall of the rotating seat 301. The lifting platform 302 is slidably sleeved on the surface of the first limiting rods 320. A stop rod 321 is fixedly provided on the outer surface of the lifting platform 302. A stop block 322 is fixedly provided on the first limiting rod 320. By setting the stop rod 321 and the stop block 322, the downward limit position of the lifting platform 302 is precisely limited. When the lifting platform 302 moves downward, it drives the stop rod 321 to move downward together until it reaches the preset position. Then, the stop rod 321 contacts the stop block 322. Under the action of the stop block 322, the stop rod 321 cannot continue to move downward, so the lifting platform 302 cannot continue to move downward. At this time, the hydraulic cylinder 316 is driven to make the spiral groove drive rod 312 move downward relative to the sleeve 311.

[0040] Reference Figures 1-11 A sealing mechanism is provided below the lifting platform 302. The sealing mechanism includes a support platform 401, which is located below the fixed platform 307. An annular airbag 402 is provided on the surface of the support platform 401. The outer diameter of the support platform 401 is larger than the inner diameter of the rotating base 301. By setting up the sealing mechanism, after the hole wall is processed, the lifting platform 302 is moved upward, which simultaneously drives the support platform 401 to move upward until the support platform 401 contacts the bottom of the rotating base 301. At this point, the support platform 401 can no longer move upward, and the annular airbag 402 begins to inflate until... The annular airbag 402 presses against the treated borehole wall, tightly fitting the smooth borehole wall. The upper end face of the support platform 401 and the lower end face of the follower rotating seat are provided with matching sealing end faces. When the support platform 401 moves upward to abut against the follower rotating seat, the sealing end faces are tightly fitted by axial pressing force to form an end face seal. The sealing mating surfaces are tightly fitted by axial pressing to form a contact seal. The inner wall of the support platform 401 is also combined with the drill pipe through a sealing structure, thereby achieving a seal on the borehole wall and avoiding the problem of mud rushing up and causing waste.

[0041] Reference Figures 1-11 An air cylinder 403 is fixedly mounted on the top of the support platform 401. The inner cavity of the air cylinder 403 is connected to the inner cavity of the annular airbag 402 via a connecting pipe (not shown in the figure, located inside the support platform 401). A piston bolt 404 is slidably mounted inside the air cylinder 403. A piston rod 405 is fixedly mounted on the top of the piston bolt 404. The top of the piston rod 405 is fixedly connected to the bottom of the fixed platform 307. A second heavy-duty spring 406 is provided between the piston bolt 404 and the inner top wall of the air cylinder 403. When no external force is applied, the preload of the second heavy-duty return spring is sufficient to counteract the total weight of the support platform 401 and its auxiliary components, maintaining the initial low position of the support platform 401. With the air cylinder 403 in place, when the support platform 401 and the rotating seat 301 come into contact, the support platform 401 cannot move upward. Moving the lifting platform 302 upward will cause the piston rod 405 to drive the piston bolt 404 to move upward relative to the air cylinder 403. Under the compression of the piston bolt 404, the gas inside the air cylinder 403 enters the annular air bladder 402 through the connecting pipe, thereby causing the annular air bladder 402 to inflate. After the grouting is completed, the lifting platform 302 moves downward, the second heavy-duty reset spring is released, driving the piston bolt 404 to reset, the gas inside the annular air bladder 402 flows back, the annular air bladder 402 contracts, and the support platform 401 moves downward and resets accordingly.

[0042] Reference Figures 1-11A receiving box 407 is bolted to the inner wall of the rotating base 301. A receiving cavity 408 is formed inside the receiving box 407. A second limiting rod 409 is fixed to the inner wall of the receiving cavity 408. A second anchor 410 is slidably sleeved on the surface of the second limiting rod 409. A through hole for the second anchor 410 to pass through is formed on the rotating shell. A through groove 411 is formed at the bottom of the receiving box 407. A top rod 412 is fixed to the top of the support platform 401. A toothed plate 413 is slidably arranged inside the through groove 411. A return spring (not shown in the figure) is arranged between the toothed plate 413 and the inner wall of the through groove 411 to reset the second anchor 410. A third gear 414 is rotatably arranged inside the receiving box 407. The toothed plate 413 and the third gear 414 mesh. A lead screw 415 is coaxially fixed on the third gear 414. The lead screw 415 is threaded. The second anchor 410 is fitted inside the second anchor 410. By setting the second anchor 410, the overall stability of the sealing mechanism is improved. When the support platform 401 moves upward, it drives the top rod 412 to move upward. After reaching the preset position, the top rod 412 contacts the toothed plate 413, causing the toothed plate 413 to move upward. Through the meshing connection between the toothed plate 413 and the third gear 414, the third gear 414 drives the lead screw 415 to rotate. Through the threaded hole inside the second anchor 410, the lead screw 415 forms a threaded transmission engagement. The second limiting rod 409 slides with the second anchor 410 to form a radial guiding constraint, causing the second anchor 410 to move radially away from the center of the rotating shell, thereby inserting into the hole wall in the horizontal direction. This avoids the impact force of the mud on the annular airbag 402, causing the annular airbag 402 to move along the hole wall direction.

[0043] Specifically, the working process or working principle of this high-pressure rotary sealer for deep hole grouting is as follows: In use, the sealing seat 1 is placed above the pre-drilled hole and fixed with the first anchor pin 2. The hydraulic cylinder 316 is activated to move the mounting plate 313 downwards, first moving the lifting platform 302 downwards along the first limit rod 320 until the stop rod 321 on the outside of the lifting platform 302 contacts the stop block 322 on the first limit rod 320. The lifting platform 302 reaches the preset working position and cannot move further downwards. At this point, the hydraulic cylinder 316 is continued to be driven, the first heavy-duty spring 314 is compressed, and the spiral groove drive rod 312 moves downwards relative to the sleeve 311. Through spiral transmission, the sleeve 311 and the first gear 310 rotate. The first gear 310 meshes and drives... The first gear ring 309 and the rotary table 304 rotate. When the rotary table 304 rotates, it drives the trimming wing 305 to rotate around the hinge point. The inner wall of the arc-shaped guide groove 306 is squeezed by the guide post 308, causing the trimming wing 305 to swing around the hinge pin and extend outward through the clearance groove 303. Then, the motor 319 is started, and the motor 319 drives the second gear 318 to rotate. The second gear 318 meshes and drives the second gear ring 317 and the rotating base 301 to rotate as a whole. The rotating base 301 drives the extended trimming wing 305 to rotate synchronously. The trimming wing 305 grinds and trims the borehole wall, making the inner wall of the borehole smooth and flat, which is convenient for subsequent sealing operations. After trimming, the hydraulic cylinder 316 is reversed, and the first heavy spring 314 is released. First, it drives the spiral groove drive rod 3 12 moves upward relative to sleeve 311, driving sleeve 311, first gear 310, first gear ring 309 and rotary table 304 to reverse through reverse helical transmission. The trimming wing 305 swings back into the clearance groove 303. After the trimming wing 305 is fully retracted, hydraulic cylinder 316 continues to move in the opposite direction, driving lifting platform 302 to move upward along the first limit rod 320 and retract into the rotating seat 301 to avoid subsequent contamination by mud. As lifting platform 302 retracts upward, it drives fixed platform 307 and piston rod 405 to move upward. At this time, support platform 401 moves upward under the action of second heavy spring 406 until support platform 401 contacts the bottom of rotating seat 301 and can no longer move upward. Lifting platform 302 continues to move upward, driving piston rod 405 and piston bolt. As piston 404 moves upward relative to air cylinder 403, piston 404 compresses the gas inside air cylinder 403. The gas enters annular air bladder 402 through a connecting pipe, causing annular air bladder 402 to inflate and tightly press against the smoothed borehole wall. Simultaneously, the upper end face of support platform 401 and the lower end face of rotating seat 301 are tightly sealed by axial pressure to form an end face seal. The inner wall of support platform 401 is connected to drill pipe through a sealing structure, achieving all-round borehole wall sealing to prevent mud from flowing up and being wasted. As support platform 401 moves upward, it drives top push rod 412 to move upward synchronously. After push rod 412 reaches the preset position, it contacts toothed plate 413 and pushes toothed plate 413 to move upward along through groove 411. Toothed plate 413 meshes and drives third gear 414 to rotate.The third gear 414 drives the coaxial lead screw 415 to rotate. The lead screw 415 forms a threaded transmission engagement with the internal threaded hole of the second anchor 410. The second limiting rod 409 provides radial guidance constraint to the second anchor 410, causing the second anchor 410 to move radially away from the center of the rotating shell and insert into the hole wall in the horizontal direction. This counteracts the impact force of the mud on the annular airbag 402 and prevents the annular airbag 402 from shifting along the hole wall. After grouting is completed, the hydraulic cylinder 316 drives the lifting platform 302. Moving downwards, the second heavy-duty spring 406 releases its force, causing the piston bolt 404 to reset. Gas flows back from the annular airbag 402 to the air cylinder 403, causing the airbag to contract. The support platform 401 moves downwards synchronously with the lifting platform 302. The push rod 412 disengages from the gear plate 413, and the reset spring causes the gear plate 413 to reset. The third gear 414 and the lead screw 415 rotate in opposite directions. The second anchor pin 410 retracts into the receiving cavity 408 of the receiving box 407 under the transmission of the lead screw 415, completing the entire operation process.

[0044] The above description of the embodiments is only for the purpose of helping to understand the method and core ideas of the present invention. It should be noted that those skilled in the art can make several improvements and modifications to the present invention without departing from the principles of the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A high-pressure rotary sealer for deep hole grouting, comprising a sealing seat (1) provided with a first anchor nail (2), characterized in that: The sealing seat (1) is provided with a hole wall trimming mechanism, which includes, A rotating seat (301) is rotatably disposed on the inner wall of the sealing seat (1). A lifting platform (302) is provided inside the rotating seat (301), and several clearance grooves (303) are provided on the lifting platform (302). A rotating platform (304) is rotatably disposed inside a lifting platform (302). Several trimming wings (305) are hinged to the bottom of the rotating platform (304). An arc-shaped guide groove (306) is provided at the bottom of the trimming wings (305). A fixed platform (307) is fixed inside the lifting platform (302). Several guide posts (308) are fixed at the top of the fixed platform (307). The number of guide posts (308) is the same as the number of arc-shaped guide grooves (306). The guide posts (308) are sleeved inside the arc-shaped guide grooves (306).

2. The high-pressure rotary sealer for deep hole grouting according to claim 1, characterized in that, The top of the rotating platform (304) is fixedly provided with a first gear ring (309), and the inner wall of the lifting platform (302) is rotatably provided with a first gear (310), and the first gear (310) and the first gear ring (309) mesh with each other.

3. The high-pressure rotary sealer for deep hole grouting according to claim 2, characterized in that, A sleeve (311) is coaxially fixed to the top of the first gear (310), and a spiral groove drive rod (312) is slidably provided on the top wall of the lifting platform (302). The spiral groove drive rod (312) and the sleeve (311) are threadedly connected.

4. The high-pressure rotary sealer for deep hole grouting according to claim 3, characterized in that, The top of the spiral groove drive rod (312) is fixedly provided with a mounting plate (313), and a first heavy spring (314) is provided between the mounting plate (313) and the lifting platform (302). A fixing ring (315) is fixedly provided inside the rotating seat (301), and a hydraulic cylinder (316) is provided on the fixing ring (315). The output end of the hydraulic cylinder (316) is fixedly connected to the mounting plate (313).

5. The high-pressure rotary sealer for deep hole grouting according to claim 1, characterized in that, The surface of the rotating seat (301) is coaxially fixed with a second gear ring (317), and the sealing seat (1) is rotatably provided with a second gear (318). The second gear (318) meshes with the second gear ring (317). The top of the sealing seat (1) is fixed with a motor (319), and the output end of the motor (319) is fixedly connected to the second gear (318).

6. The high-pressure rotary sealer for deep hole grouting according to claim 1, characterized in that, The inner wall of the rotating seat (301) is fixed with a plurality of first limiting rods (320), the lifting platform (302) is slidably sleeved on the surface of the first limiting rods (320), the outer surface of the lifting platform (302) is fixed with a stop rod (321), and a stop block (322) is fixed on the first limiting rod (320).

7. The high-pressure rotary sealer for deep hole grouting according to claim 1, characterized in that, A sealing mechanism is provided below the lifting platform (302). The sealing mechanism includes a support platform (401). The support platform (401) is located below the fixed platform (307). An annular airbag (402) is provided on the surface of the support platform (401). The outer diameter of the support platform (401) is larger than the inner diameter of the rotating seat (301).

8. The high-pressure rotary sealer for deep hole grouting according to claim 7, characterized in that, An air cylinder (403) is fixedly installed on the top of the support platform (401). A piston bolt (404) is slidably installed inside the air cylinder (403). A piston rod (405) is fixedly installed on the top of the piston bolt (404). The top of the piston rod (405) is fixedly connected to the bottom of the fixed platform (307). A second heavy spring (406) is installed between the piston bolt (404) and the inner top wall of the air cylinder (403).

9. The high-pressure rotary sealer for deep hole grouting according to claim 7, characterized in that, The inner wall of the rotating seat (301) is fixedly provided with a receiving box (407), the receiving box (407) is provided with a receiving cavity (408), the inner wall of the receiving cavity (408) is fixedly provided with a second limiting rod (409), and the surface of the second limiting rod (409) is slidably sleeved with a second anchor (410).

10. The high-pressure rotary sealer for deep hole grouting according to claim 9, characterized in that, The bottom of the receiving box (407) is provided with a through groove (411), the top of the support platform (401) is fixedly provided with a top rod (412), a toothed plate (413) is slidably provided inside the through groove (411), a third gear (414) is rotatably provided inside the receiving box (407), the toothed plate (413) and the third gear (414) mesh with each other, a lead screw (415) is coaxially fixed on the third gear (414), and the lead screw (415) is threaded inside the second anchor (410).

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