Modular minimally invasive grouting treatment equipment

Abstract

The application discloses a modular minimally invasive grouting treatment equipment and relates to the technical field of road repair.The application comprises a walking vehicle body, the front end of the walking vehicle body is provided with a drilling and grouting integrated assembly, the drilling and grouting integrated assembly comprises a lifting linear slide rail module installed at the front end of the walking vehicle body, a drilling motor is fixedly installed on the lifting linear slide rail module, a drilling shaft is installed at the bottom of the output end of the drilling motor, a detachable drill bit is arranged at the bottom of the drilling shaft, outer spiral fins are arranged on the outer side of the drilling shaft, and a grouting connecting cylinder is rotatably and sealingly installed on the drilling shaft.The application adopts a step-by-step residue discharging mode, in the drilling process, large-particle drilling residues are synchronously discharged out of the hole through the screw conveying force upwards, then the left and right half cylinders are combined to form a complete guide cylinder, high-pressure gas is sprayed from the one-way high-pressure gas hole at the bottom of the cylinder, the high-pressure gas forms a dust raising effect in the hole, and the residual fine dust at the bottom of the hole is completely suspended and discharged out of the hole.

Description

Technical Field

[0001] This invention relates to the field of road repair equipment technology, specifically to a modular minimally invasive grouting treatment equipment. Background Technology

[0002] Grouting reinforcement is currently the mainstream technology for treating defects in urban arterial roads. By injecting grout into the defective layer to fill the voids and cement the loose base layer, the strength and integrity of the pavement structure can be quickly restored. Minimally invasive grouting technology has become the core development direction for urban arterial road maintenance operations because of its small borehole diameter, low damage to the pavement structure, and no need for large-scale traffic closures.

[0003] However, in current minimally invasive grouting engineering practices, there are still many unresolved industry pain points: First, deep drilling has poor hole cleaning efficiency, highlighting the conflict between energy consumption and environmental protection. Current minimally invasive grouting drilling cleaning methods mostly employ negative pressure suction technology. However, for deep boreholes in urban main roads with a "surface layer + semi-rigid base + subbase + roadbed" structure, the negative pressure airflow attenuates significantly along the path, resulting in insufficient vacuum at the bottom of the hole. This fails to effectively adsorb fine dust and drill cuttings, leading to incomplete cleaning and insufficient adhesion between the grout and the base layer, significantly reducing the grouting reinforcement effect. Furthermore, using high-power, high-negative-pressure equipment is not only bulky and energy-intensive, making it difficult to adapt to new energy mobile work vehicles, but also prone to hole wall collapse. Additionally, conventional wet slag removal processes generate large amounts of wastewater, polluting urban roads and softening the semi-rigid base layer, causing secondary road surface damage—completely failing to meet the environmental control requirements of main urban areas.

[0004] Secondly, existing grouting operations require multiple sequential steps, including drilling, drill removal, lowering the cleaning pipe, cleaning the hole, pulling out the cleaning pipe, lowering the grouting pipe, and grouting. The operation cycle for a single hole is long, while urban main roads can usually only be closed for construction from 0:00 to 6:00 at night, resulting in a very short effective working window. The multiple sequential steps severely limit the daily treatment mileage. At the same time, the repeated drilling and pipe lowering process can easily cause the semi-rigid base hole wall to collapse, leading to blockage of the grouting channel and directly causing the grouting operation to fail.

[0005] Existing grouting processes rely solely on grouting pumps to control grouting pressure. For grouting scenarios involving semi-rigid base courses on urban main roads, excessively low pressure can lead to incomplete grouting and incomplete filling of voids, while excessively high pressure can cause problems such as road surface heave, base course cracking, and grout leakage that contaminates the road surface. Furthermore, during the process of lowering the grouting pipe after cleaning the borehole, scum can easily be introduced into the borehole wall, clogging the grouting channel and further exacerbating fluctuations in grouting pressure, making it impossible to guarantee the uniformity and stability of the treatment effect. Summary of the Invention

[0006] The purpose of this invention is to provide a modular minimally invasive grouting treatment device to solve the above problems.

[0007] To achieve the above objectives, the present invention specifically adopts the following technical solution: A modular minimally invasive grouting treatment device includes a mobile vehicle body. The front end of the mobile vehicle body is provided with an integrated drilling and grouting assembly. The integrated drilling and grouting assembly includes a lifting linear slide rail module installed at the front end of the mobile vehicle body. A drilling motor is fixedly installed on the lifting linear slide rail module. A drilling shaft is installed at the bottom of the output end of the drilling motor. A detachable drill bit is provided at the bottom of the drilling shaft. An outer spiral blade is provided on the outside of the drilling shaft. A grouting connecting cylinder is rotatably and sealed on the drilling shaft. The lifting linear slide rail module is provided with a swingable left support and a right support on the left and right sides respectively. Both the left and right supports are provided with semi-circular mounting claws. A left semi-circular cylinder is inserted into the left semi-circular mounting claw, and a right semi-circular cylinder is inserted into the right semi-circular mounting claw. When the left and right semi-circular cylinders are put together, they can form a complete guide cylinder. The outer diameter of the guide cylinder is smaller than the outer diameter of the drill bit, and the inner diameter of the guide cylinder is the same as the outer diameter of the outer spiral blade. One-way high-pressure air holes are opened on the inner walls of the bottom ends of the left and right semi-circular cylinders. The grouting connecting cylinder can be sealed and fitted onto the guide cylinder. The rear end of the vehicle body is equipped with a high-pressure air pump and a grouting module. The high-pressure air pump is connected to a one-way high-pressure air hole through an air pipe, and the grouting connecting cylinder is connected to the grouting module through a grouting pipe.

[0008] Furthermore, two sets of sealing protrusions are provided on the outer sides of both the left and right semi-cylinders. The semi-circular mounting claws can be tightly inserted between the two sets of sealing protrusions. A sealing rubber sleeve is provided on the outer side of the sealing protrusions, which can seal the grouting hole.

[0009] Furthermore, a connecting bottom ring is provided at the bottom of the left semi-cylinder, the inner diameter of the connecting bottom ring is the same as the outer diameter of the guide cylinder, a connecting plug is provided at the bottom of the grouting connecting cylinder, the frictional force between the connecting plug and the guide cylinder is greater than the weight of the guide cylinder, and a ash discharge port is provided through the outer side of the connecting plug.

[0010] Furthermore, a left hinge shaft and a right hinge shaft are rotatably mounted on the left and right sides of the lifting linear slide rail module, respectively. A worm gear is provided at the top of both the left and right hinge shafts. A swing motor is mounted on the back of the lifting linear slide rail module. A transmission shaft is fixedly mounted on the output end of the swing motor. A worm is provided at both ends of the transmission shaft. The worm meshes with the corresponding worm gear. The left bracket is fixedly mounted on the left hinge shaft, and the right bracket is slidably connected to the right hinge shaft. A support protrusion is provided on the right side of the lifting linear slide rail module. A top spring is provided between the support protrusion and the right bracket. A retaining ring is provided on the inner top of the connecting plug.

[0011] Furthermore, two sealing protrusions are also provided at the upper ends of the left and right semi-cylinders.

[0012] Furthermore, a sealing groove is provided on the inner wall of the connector, the sealing groove is located below the retaining ring, and a rubber baffle is provided below the sealing groove, the rubber baffle is located above the ash discharge port.

[0013] Furthermore, the bottom end of the connector is provided with a tapered opening.

[0014] Furthermore, both the left and right brackets are provided with two semi-circular mounting claws.

[0015] Furthermore, the semi-circular mounting claw has a built-in permanent magnet.

[0016] Furthermore, a guide protrusion is provided at the opening of the left semi-cylinder, and a guide groove is provided at the opening of the right semi-cylinder. The guide protrusion can be sealed and inserted into the guide groove.

[0017] The beneficial effects of this invention are as follows: 1. This invention employs a step-by-step slag removal method. During drilling, large-particle drill slag is simultaneously discharged upwards from the borehole via a spiral conveyor. The slag is then conveyed through a converging left and right semi-cylinders forming a complete guide tube. High-pressure gas ejected from the bottom of the tube via a one-way high-pressure vent creates a dust-raising effect within the borehole, completely suspending any remaining fine dust particles. The drilling shaft then drives the outer spiral blades to rotate, creating an upward swirling conveying force. Combined with the upward flow of the high-pressure airflow, this completely removes the suspended dust from the borehole. The entire process requires no high-power, high-negative-pressure equipment, significantly reducing energy consumption and adapting to the power supply limitations of new energy mobile vehicles.

[0018] 2. This invention integrates drilling, hole cleaning, and grouting functions into a single integrated drilling and grouting execution end. After hole cleaning is completed, the grouting mode can be directly switched through the insertion and connection of the grouting connecting cylinder and the guide cylinder. The entire process eliminates the need for repeated drill bit removal and replacement of the working pipe, completely avoiding the hole collapse problem caused by drill bit removal after drilling semi-rigid base layers. The mileage for treating defects during the single nighttime working window can be significantly increased, solving the pain point of short effective construction time on urban main roads. Simultaneously, the dust discharge port on the grouting connecting cylinder allows dust to be discharged during the hole cleaning stage, and automatically sealed during the grouting stage through the insertion of the guide cylinder, eliminating the need for additional pipeline switching. This achieves both hole cleaning and grouting functions in one structure.

[0019] 3. This invention utilizes both pump pressure grouting and spiral conveyor pressure grouting in the grouting module to more accurately control the grouting pressure and provides a wider grouting pressure range, making it suitable for deep hole grouting.

[0020] 4. This invention eliminates the need for complex multi-channel coaxial drill rods and multiple independent drive systems. It achieves automatic switching of operating modes and integrated hole cleaning and grouting operations solely through a purely mechanical structure, significantly reducing equipment processing costs and failure rates. Furthermore, the core operating components adopt a modular design, allowing for individual replacement of easily worn parts such as drill bits and semi-cylinders, eliminating the need for complete scrapping. This further reduces the cost of equipment use and maintenance, and allows for rapid adaptation to upgrades and modifications of existing road maintenance equipment, making it suitable for large-scale application in the urban road maintenance industry. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the front axial side of the integrated drilling and grouting assembly of the present invention; Figure 3 This is a schematic diagram of the rear axial side of the integrated drilling and grouting assembly of the present invention; Figure 4 This is an exploded view of the integrated drilling and grouting component of the present invention; Figure 5 This is a schematic diagram of the drilling shaft structure of the present invention; Figure 6 This is a cross-sectional view of the grouting connecting cylinder of the present invention; Figure 7 This is a schematic diagram of the left semi-cylindrical structure of the present invention; Figure 8 This is a schematic diagram of the right semi-cylindrical structure of the present invention.

[0022] Reference numerals: 1. Walking vehicle body; 2. Lifting linear slide rail module; 21. Swing motor; 22. Drive shaft; 3. Drilling motor; 4. Drilling shaft; 41. Outer spiral blade; 5. Drill bit; 6. Grouting connecting cylinder; 61. Connecting plug; 62. Retaining ring; 63. Sealing groove; 64. Rubber baffle; 65. Ash discharge port; 7. Left hinge shaft; 8. Right hinge shaft; 81. Top spring; 9. Left bracket; 10. Right bracket; 11. Semi-circular mounting claw; 12. Left semi-cylinder; 121. Sealing protrusion; 122. One-way high-pressure air hole; 123. Connecting bottom ring; 124. Guide protrusion; 13. Right semi-cylinder; 131. Guide groove. Detailed Implementation

[0023] 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.

[0024] Example 1, as Figures 1-8As shown, a modular minimally invasive grouting treatment equipment includes a mobile vehicle body 1. The front end of the mobile vehicle body 1 is provided with an integrated drilling and grouting component. The integrated drilling and grouting component includes a lifting linear slide rail module 2 installed at the front end of the mobile vehicle body 1. A drilling motor 3 is fixedly installed on the lifting linear slide rail module 2. A drilling shaft 4 is installed at the bottom of the output end of the drilling motor 3. A detachable drill bit 5 (threaded connection or quick-connect coupling) is provided at the bottom of the drilling shaft 4. An outer spiral blade 41 is provided on the outer side of the drilling shaft 4. A grouting connecting cylinder 6 is rotatably sealed on the drilling shaft 4. The left and right sides of the lifting linear slide rail module 2 are respectively provided with swingable left bracket 9 and right bracket 10. Both the left bracket 9 and right bracket 10 are provided with semi-circular mounting claws 11. A left semi-circular cylinder 12 is inserted into the left semi-circular mounting claw 11, and a right semi-circular cylinder 13 is inserted into the right semi-circular mounting claw 11. When the left semi-circular cylinder 12 and the right semi-circular cylinder 13 are put together, they can form a complete guide tube. The outer diameter of the guide tube is smaller than the outer diameter of the drill bit 5. The inner diameter of the guide tube is the same as the outer diameter of the outer spiral blade 41. The bottom inner wall of the left semi-circular cylinder 12 and the right semi-circular cylinder 13 are provided with one-way high-pressure air holes 122. The grouting connecting cylinder 6 can be sealed and sleeved on the guide tube. The rear end of the traveling vehicle body 1 is equipped with a high-pressure air pump and a grouting module. The high-pressure air pump is connected to the one-way high-pressure air hole 122 through an air pipe, and the grouting connecting cylinder 6 is connected to the grouting module through a grouting pipe.

[0025] The vehicle body 1 primarily uses a new energy forklift as the chassis, with the fork arms removed. The integrated drilling and grouting assembly is directly mounted on the swing mast, allowing the drilling angle to be adjusted according to different road inclines, ensuring the drilled hole is perpendicular to the road surface. In actual use, impurities inside the drilled hole are generally discharged through negative pressure. However, if the hole is too deep, the negative pressure may not be able to completely remove the impurities. Using a higher-power negative pressure device would consume too much electricity, be more expensive, and be larger in size. This invention mainly aims to solve this problem.

[0026] Operating steps: (1) Drilling: At this time, the left support 9 and the right support 10 are far apart from each other, and the left semi-cylinder 12 and the right semi-cylinder 13 on them are far away from the drilling shaft 4. Start the equipment, the drilling motor 3 drives the drilling shaft 4 to rotate, the drilling shaft 4 drives the drill bit 5 to rotate, and at the same time, the lifting linear slide rail module 2 drives the drilling motor 3 to descend. The drill bit 5 is inserted into the road surface to drill. During the drilling process, large particles of debris are conveyed upward under the action of the spiral conveying force of the outer spiral blade 41 until they are discharged from the hole.

[0027] (2) Dust removal and grouting: After the deep drilling is completed, the lifting linear slide rail module 2 drives the drilling motor 3 to rise, the drill bit 5 is pulled out of the hole, and then the drill bit 5 is removed. The left support 9 and the right support 10 are controlled to move closer to each other, so that the left half cylinder 12 and the right half cylinder 13 on it are joined together to form a guide cylinder. The guide cylinder is sleeved on the outside of the outer spiral blade 41. Then the guide cylinder and the drilling shaft 4 are inserted into the hole together. The high-pressure air pump is started, and the air pipe and the one-way high-pressure air hole 122 spray high-pressure gas. The drilling shaft 4 rotates, causing the outer spiral blade 41 to draw air upward. The high-pressure gas blows up the small particles and dust inside the hole, which has a dust-raising effect. The dust raised is transported upward by the outer spiral blade 41, and the high-pressure airflow also flows upward, which can completely remove the dust and achieve a good deep hole cleaning effect. After the ash discharge is completed, the grouting connecting cylinder 6 is connected to the guide cylinder. The grouting module injects the grout into the guide cylinder through the grouting connecting cylinder 6. At the same time, the drilling shaft 4 is reversed, and the outer spiral blade 41 generates a downward conveying force to increase the grouting pressure.

[0028] In the second embodiment, based on the above embodiment, two sets of sealing protrusions 121 are provided on the outer sides of both the left semi-cylinder 12 and the right semi-cylinder 13. The semi-circular mounting claw 11 can be tightly inserted between the two sets of sealing protrusions 121. A sealing rubber sleeve is provided on the outer side of the sealing protrusion 121, and the sealing rubber sleeve can seal the grouting hole.

[0029] By setting the sealing protrusion 121, when the guide tube is inserted into the hole, it can not only scrape the inner wall of the hole, but also block the high pressure air pressure, so that the high pressure gas can only be discharged through the outer spiral blade 41, resulting in better ash removal effect. At the same time, during grouting, there is no need to additionally seal the gap between the guide tube and the hole, making the operation simpler. After grouting, the guide tube is lifted to fill the hole with grout, and then the hole is sealed.

[0030] In the third embodiment, based on the above embodiments, a connecting bottom ring 123 is provided at the bottom of the left semi-cylinder 12. The inner diameter of the connecting bottom ring 123 is the same as the outer diameter of the guide cylinder. A connecting plug 61 is provided at the bottom of the grouting connecting cylinder 6. The frictional force between the connecting plug 61 and the guide cylinder is greater than the weight of the guide cylinder. A ash discharge port 65 is provided through the outer side of the connecting plug 61.

[0031] The left hinge shaft 7 and the right hinge shaft 8 are rotatably mounted on the left and right sides of the lifting linear slide rail module 2, respectively. The top of the left hinge shaft 7 and the right hinge shaft 8 are provided with worm gears. The back of the lifting linear slide rail module 2 is equipped with a swing motor 21. The output end of the swing motor 21 is fixedly mounted with a transmission shaft 22. Both ends of the transmission shaft 22 are provided with worms, which mesh with the corresponding worm gears. The left bracket 9 is fixedly mounted on the left hinge shaft 7, and the right bracket 10 is slidably connected to the right hinge shaft 8. The right side of the lifting linear slide rail module 2 is provided with a support protrusion. A top spring 81 is provided between the support protrusion and the right bracket 10. A retaining ring 62 is provided on the inner top of the connecting plug 61.

[0032] Two sealing protrusions 121 are also provided at the upper ends of the left semi-cylinder 12 and the right semi-cylinder 13.

[0033] A guide protrusion 124 is provided at the opening of the left semi-cylinder 12, and a guide groove 131 is provided at the opening of the right semi-cylinder 13. The guide protrusion 124 can be sealed and inserted into the guide groove 131. This provides guidance for misaligned insertion while improving the connection sealing performance.

[0034] In the actual design phase, the primary problem to be solved is how to achieve a stable and automatic connection between the left semi-cylinder 12 and the right semi-cylinder 13, and how to make them an integral part of the drilling shaft 4 after connection.

[0035] This implementation, through its ingenious design, achieves automatic connection without complex structures, additional drives, or manual intervention. Specifically: The swing motor 21 is energized, driving the left hinge shaft 7 and right hinge shaft 8 to rotate synchronously in opposite directions via a worm gear structure (the two worms rotate in opposite directions). The left and right hinge shafts 7 and 8 cause the left and right supports 9 and 10 to move closer together, bringing the left and right semi-cylinders 12 and 13 together. The guide protrusion 124 is sealed and inserted into the guide groove 131, and at this point, the right semi-cylinder 13 is higher than the left semi-cylinder 12. Finally, the lifting linear slide rail module 2 is controlled to operate, causing the drilling motor 3 to descend. The drilling motor 3 then drives the drilling shaft 4 to descend, and the drilling shaft 4 initiates grouting. As the connecting cylinder 6 descends, the right semi-cylinder 13, guided by the guide protrusion 124 and clamped and restricted by the semi-circular mounting claw 11, can only slide steadily up and down. The grouting connecting cylinder 6 drives the right semi-cylinder 13 to descend through the friction between the connecting plug 61 and the right semi-cylinder 13. The bottom end of the right semi-cylinder 13 is inserted into the connecting bottom ring 123, and the bottom end of the right semi-cylinder 13 and the bottom end of the left semi-cylinder 12 are tightly joined together through the connecting bottom ring 123. At the same time, the right semi-cylinder 13 pushes the right support 10 to slide downward relative to the right hinge shaft 8, squeezing the top spring 81. After the connection is complete, the right support 10 can no longer descend. As the grouting connecting cylinder 6 descends, it continues to descend. The connecting plug 61 is inserted into the guide cylinder and does not exceed the ash discharge port 65. The ash discharge port 65 can discharge ash normally.

[0036] Subsequently, the guide tube and the drilling shaft 4 are inserted into the hole together. Since the grouting connecting tube 6 cannot rotate due to the restriction of the grouting connecting pipe, the grouting connecting tube 6 rotates relative to the drilling shaft 4 for sealing. The drilling shaft 4 rotates relative to the grouting connecting tube 6 and the guide tube, achieving efficient ash removal. The dust is discharged from the ash discharge port 65. It should be noted that the length of the guide tube is greater than the length of the drilling shaft 4. Therefore, the guide tube contacts the bottom of the hole, while the drilling shaft 4 does not. After ash removal, the drilling shaft 4 is directly controlled to continue descending relative to the guide tube. The guide tube inserts deeper into the connecting plug 61, sealing the ash discharge port 65 and making the connection tighter to prevent grout leakage during subsequent high-pressure grouting. Generally, the bottom of deep holes has a higher hardness. If a softer bottom is encountered, sealing protrusions 121 can be set at the upper ends of the left semi-cylinder 12 and the right semi-cylinder 13. The guide tube is supported by the lower semi-circular mounting claw 11 and the upper sealing protrusion 121. This design is optional.

[0037] The step of extending the guide tube and drilling shaft 4 after ash removal, as set in this embodiment, greatly improves construction efficiency. Furthermore, the entire process is automated. Both the left semi-cylinder 12 and the right semi-cylinder 13 are hollow, reducing weight while still allowing for the transmission of high-pressure gas. The left semi-cylinder 12 and right semi-cylinder 13 are made entirely of POM material, commonly known as plastic steel, which has extremely high rigidity and minimal creep. Long-term use with the insertion joint does not result in increased clearance or decreased friction. Even with ultra-deep and long guide tubes, it ensures stable positive pressure during insertion, balancing strength, wear resistance, sealing, and lightweight design, making it perfectly suited for deep-hole high-pressure slag removal and grouting conditions.

[0038] Example 4, based on the above examples, further includes a sealing groove 63 formed on the inner wall of the connector 61, the sealing groove 63 being located below the retaining ring 62, and a rubber baffle 64 being provided below the sealing groove 63, the rubber baffle 64 being located above the ash discharge port 65.

[0039] The bottom of the connector 61 is provided with a tapered opening to facilitate misaligned insertion.

[0040] By using the rubber baffle 64, during ash discharge, the rubber baffle 64 seals the gap between the connector 61 and the drilling shaft 4, preventing dust from entering the grouting connector 6 upwards. When the guide tube is inserted into the position of the rubber baffle 64, the rubber baffle 64 is squeezed into the sealing groove 63, improving the sealing performance.

[0041] Example 5, based on the above examples, further includes two semi-circular mounting claws 11 on both the left bracket 9 and the right bracket 10. The semi-circular mounting claws 11 have built-in permanent magnets.

[0042] The upper and lower semicircular mounting claws 11 allow for better insertion and fixation of the left semicircular cylinder 12 and the right semicircular cylinder 13, resulting in a better initial fixation effect.

[0043] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A modular minimally invasive grouting treatment device, comprising a mobile vehicle (1), characterized in that, The front end of the vehicle body (1) is provided with an integrated drilling and grouting assembly. The integrated drilling and grouting assembly includes a lifting linear slide rail module (2) installed at the front end of the vehicle body (1). A drilling motor (3) is fixedly installed on the lifting linear slide rail module (2). A drilling shaft (4) is installed at the bottom of the output end of the drilling motor (3). A detachable drill bit (5) is provided at the bottom of the drilling shaft (4). An outer spiral blade (41) is provided on the outside of the drilling shaft (4). A grouting connecting cylinder (6) is rotatably sealed on the drilling shaft (4). The lifting linear slide rail module (2) is provided with swingable left support (9) and right support (10) on the left and right sides respectively. Both the left support (9) and right support (10) are provided with semi-circular mounting claws (11). A left semi-circular cylinder (12) is inserted into the left semi-circular mounting claw (11), and a right semi-circular cylinder (13) is inserted into the right semi-circular mounting claw (11). When the left semi-circular cylinder (12) and the right semi-circular cylinder (13) are put together, they form a complete guide tube. The outer diameter of the guide tube is smaller than the outer diameter of the drill bit (5). The inner diameter of the guide tube is the same as the outer diameter of the outer spiral blade (41). The bottom inner walls of the left semi-circular cylinder (12) and the right semi-circular cylinder (13) are provided with one-way high-pressure air holes (122). The grouting connecting cylinder (6) is sealed and fitted into the guide tube. The rear end of the vehicle body (1) is equipped with a high-pressure air pump and a grouting module. The high-pressure air pump is connected to a one-way high-pressure air hole (122) through an air pipe, and the grouting connecting cylinder (6) is connected to the grouting module through a grouting pipe.

2. The modular minimally invasive grouting treatment equipment according to claim 1, characterized in that, The left semi-cylinder (12) and the right semi-cylinder (13) are each provided with two sets of sealing protrusions (121). The semi-circular mounting claw (11) is tightly inserted between the two sets of sealing protrusions (121). The sealing protrusions (121) are provided with sealing rubber sleeves on their outer sides. The sealing rubber sleeves can seal the grouting holes.

3. The modular minimally invasive grouting treatment equipment according to claim 2, characterized in that, The bottom of the left semi-cylinder (12) is provided with a connecting bottom ring (123), the inner diameter of the connecting bottom ring (123) is the same as the outer diameter of the guide cylinder, the bottom of the grouting connecting cylinder (6) is provided with a connecting plug (61), the insertion friction between the connecting plug (61) and the guide cylinder is greater than the weight of the guide cylinder, and the outer side of the connecting plug (61) is provided with a ash discharge port (65).

4. The modular minimally invasive grouting treatment equipment according to claim 3, characterized in that, The left hinge shaft (7) and the right hinge shaft (8) are rotatably installed on the left and right sides of the lifting linear slide rail module (2), respectively. The top of the left hinge shaft (7) and the right hinge shaft (8) are provided with worm gears. The back of the lifting linear slide rail module (2) is equipped with a swing motor (21). The output end of the swing motor (21) is fixedly installed with a transmission shaft (22). Both ends of the transmission shaft (22) are provided with worms. The worms mesh with the corresponding worm gears. The left bracket (9) is fixedly installed on the left hinge shaft (7). The right bracket (10) is slidably connected to the right hinge shaft (8). The right side of the lifting linear slide rail module (2) is provided with a support protrusion. A top spring (81) is provided between the support protrusion and the right bracket (10). The inner top of the connector (61) is provided with a retaining ring (62).

5. The modular minimally invasive grouting treatment equipment according to claim 4, characterized in that, The upper ends of the left semi-cylinder (12) and the right semi-cylinder (13) are provided with two sealing protrusions (121).

6. The modular minimally invasive grouting treatment equipment according to claim 5, characterized in that, The inner wall of the connector (61) is provided with a sealing groove (63), which is located below the retaining ring (62). A rubber baffle (64) is provided below the sealing groove (63), which is located above the ash discharge port (65).

7. The modular minimally invasive grouting treatment equipment according to claim 6, characterized in that, The bottom end of the connector (61) is provided with a tapered opening.

8. The modular minimally invasive grouting treatment equipment according to claim 7, characterized in that, Both the left bracket (9) and the right bracket (10) are provided with two semi-circular mounting claws (11).

9. The modular minimally invasive grouting treatment equipment according to claim 8, characterized in that, The semi-circular mounting claw (11) has a built-in permanent magnet.

10. The modular minimally invasive grouting treatment equipment according to claim 9, characterized in that, The opening of the left semi-cylinder (12) is provided with a guide protrusion (124), and the opening of the right semi-cylinder (13) is provided with a guide groove (131). The guide protrusion (124) is sealed and inserted into the guide groove (131).

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