Underground engineering surrounding rock refined intelligent grouting device

Abstract

The invention relates to the technical field of constructional engineering, and discloses an underground engineering surrounding rock refined intelligent grouting device which comprises a bottom plate and further comprises a material storage barrel arranged at the top of the bottom plate, a discharging pipe is arranged on the outer side of the material storage barrel, a first flow sensor for monitoring the grouting flow of a slurry material is arranged on the outer side of the discharging pipe, and a second flow sensor for monitoring the grouting flow of the slurry material is arranged on the outer side of the discharging pipe. Slurry in the mixing cylinder is pumped out through the second material pump and the backflow pipe, the slurry is discharged into the mixing cylinder through the circulating pipe, slurry precipitation and layering are prevented, slurry flowing can be kept, sediment accumulation and precipitation are reduced, it can be ensured that slurry keeps uniform in the flowing process, particles are prevented from being accumulated in a specific area, and the slurry mixing efficiency is improved. The flow speed of the backflow slurry can be monitored through the second flow sensor, and if the slurry is layered, the backflow speed and time can be properly increased so as to improve the uniformity of the slurry.

Description

Technical Field

[0001] The present invention relates to the technical field of construction engineering, and particularly to a refined intelligent grouting device for surrounding rock of underground engineering. Background Technique

[0002] The surrounding rock of underground engineering refers to the rock mass that serves as the environment for underground excavation projects. In rock underground engineering, the surrounding rock mass whose stress state changes due to excavation is also called the surrounding rock. To ensure the safety and stability of underground engineering, sometimes it is necessary to reinforce the surrounding rock, such as using methods like concrete lining, steel plate lining, shotcrete and various supports, grouting, etc. The underground engineering surrounding rock grouting device is an efficient and intelligent engineering equipment. This device injects a special slurry into the cracks of the surrounding rock through a grouting pump, thereby filling the cracks, improving the overall strength and bearing capacity of the surrounding rock, and can realize the closed and automated process of slurry storage, mixing and grouting. It not only reduces the labor input but also significantly improves the working environment. In addition, this device is also equipped with an intelligent sensing control unit, which can accurately control the grouting pressure and slurry ratio to ensure the grouting effect and quality. In short, this kind of grouting device plays an important role in underground engineering and provides a strong guarantee for project safety and quality.

[0003] When the existing grouting device is in use, it usually mixes various ingredients to prepare a slurry that meets the requirements. However, in the prior art, the fluidity of the slurry in the mixing drum is poor, and the slurry particles need sufficient fluid power to maintain their suspended state. When the slurry flow is insufficient, the fluid power weakens, and the particles cannot be effectively suspended, and are prone to sedimentation under the action of gravity. This sedimentation process will show different speeds due to differences in particle size, density and shape, and thus form a stratification phenomenon. The sedimentation and stratification of the particles in the stable slurry will cause blockage of the machine pipelines and formation voids, and in severe cases, it will cause the premature end of the grouting process. After the grouting is completed, the sedimentation and stratification of the particles change the density of the slurry in the vertical direction, reducing the solidification rate and uniformity of the slurry, and the grouting water plugging effect will also decline. Moreover, when grouting the surrounding rock, the grouting volume cannot be monitored in real time, which may lead to too much or too little grouting, thus affecting the grouting effect. At the same time, during the grouting process, the slurry may be uneven due to poor flow or uneven distribution, and the lack of monitoring means will make it difficult to detect and correct this problem in a timely manner. Summary of the Invention

[0004] The purpose of the present invention is to provide a refined intelligent grouting device for surrounding rock of underground engineering to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A refined intelligent grouting device for surrounding rock of underground engineering, including a bottom plate, and further including:

[0006] A storage cylinder is arranged on the top of the bottom plate. An outlet pipe is arranged on the outer side of the storage cylinder. A first flow sensor for monitoring the injection flow rate of the slurry material is arranged on the outer side of the outlet pipe. One end of the outlet pipe is provided with a first pumping pump. The outlet end of the first pumping pump is provided with a feed pipe. One end of the feed pipe is provided with a mixing cylinder for mixing the slurry material. A temperature sensor for monitoring the slurry temperature is arranged on the top of the mixing cylinder. A return pipe for preventing the slurry from precipitating and stratifying is arranged on the outer side of the mixing cylinder. One end of the return pipe is provided with a second pumping pump. The outlet end of the second pumping pump is provided with a circulation pipe. A second flow sensor for monitoring the flow rate of the return slurry is arranged on the outer side of the circulation pipe;

[0007] A connecting pipe is arranged on one side of the mixing cylinder. A third flow sensor for monitoring the grouting flow rate is arranged on the outer side of the connecting pipe. One end of the connecting pipe is provided with a grouting pump. The outlet end of the grouting pump is provided with a grouting pipe. One end of the grouting pipe is provided with a connecting hose for adjusting the grouting depth. One end of the connecting hose is provided with a grouting head. An installation sleeve is fixedly connected to the outer side of the connecting hose. An installation rod is fixedly connected to the outer side of the installation sleeve. A protective cover is arranged at the bottom of the installation rod. An installation block is fixedly connected to the inner wall of the protective cover. One side of the installation block is fixedly connected to an installation plate. A probe for monitoring the grouting process is arranged at the bottom of the installation plate. An observation pipe is installed on the inner wall of the protective cover. An observation cover for protecting the probe is installed on the inner wall of the observation pipe.

[0008] Preferably, a first motor is fixedly connected to the top of the mixing cylinder. The output end of the first motor is fixedly connected to a driving rod. Stirring blades for mixing the slurry are fixedly connected to the outer side of the driving rod.

[0009] Preferably, a first control panel is installed on the top of the mixing cylinder. A feed inlet is arranged on the top of the mixing cylinder. A visual window for observing the slurry mixing is arranged on the outer side of the mixing cylinder.

[0010] Preferably, a fixing plate is fixedly connected to the outer side of the grouting pipe. A support rod is fixedly connected to the inner wall of the fixing plate. A guide rod for stretching the length of the connecting hose is slidably connected to the inner wall of the support rod.

[0011] Preferably, a second motor is installed on the top of the support rod. The output end of the second motor is fixedly connected to a threaded rod. A limiting plate is fixedly connected to the outer side of the guide rod. A limiting rod for limiting the guide rod is fixedly connected to the inner wall of the support rod.

[0012] Preferably, a second control panel for controlling the probe is installed on the top of the installation plate. A water storage pipe is installed at the bottom of the installation plate.

[0013] Preferably, a water pump is installed at the bottom of the mounting plate. An outlet pipe is arranged at the water outlet end of the water pump, and a spray head for cleaning the observation cover is arranged at one end of the outlet pipe.

[0014] Preferably, a mounting seat is fixedly connected to the top of the bottom plate. A guide block is slidably connected to the inner wall of the mounting seat, and a protection plate for protecting the mixing cylinder is fixedly connected to one side of the guide block.

[0015] Preferably, a limiting block for limiting the guide block is fixedly connected to the inner wall of the mounting seat, and a mounting bolt for mounting the guide block is threadedly connected to the inner wall of the mounting seat.

[0016] Preferably, a clamping rod is fixedly connected to one side of the protection plate, and a clamping block is clamped inside the protection plate.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] 1. In the present invention, the slurry inside the mixing cylinder is pumped out through the second pumping pump and the return pipe, and the slurry is discharged into the mixing cylinder through the circulation pipe, preventing the slurry from precipitating and stratifying, maintaining the flow of the slurry, reducing the accumulation and precipitation of sediment, ensuring the uniformity of the slurry during the flow process, and preventing particles from accumulating in specific areas. The flow rate of the returned slurry can be monitored by the second flow sensor. If the slurry shows a stratification phenomenon, the return speed and time can be appropriately increased to improve its uniformity.

[0019] 2. In the present invention, the probe is used to monitor the grouting process, avoiding problems such as improper slurry ratio, insufficient grouting pressure, or too fast grouting speed, thereby improving the density and uniformity of grouting, ensuring the quality and effect of grouting. Real-time monitoring can also help construction personnel adjust the grouting plan in time to ensure the safety and stability of the construction process. The observation cover is sprayed and cleaned through the outlet pipe and the spray head, avoiding the problem that dust and impurities affect the monitoring clarity of the probe and improving the monitoring effect of the grouting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of a preferred embodiment of the refined intelligent grouting device for underground engineering surrounding rock provided by the present invention;

[0021] Figure 2 is a schematic structural diagram of the bottom plate provided by the present invention;

[0022] Figure 3 is a schematic structural diagram of the mixing cylinder provided by the present invention;

[0023] Figure 4 is a schematic structural diagram of the grouting pipe provided by the present invention;

[0024] Figure 5Schematic diagram of the support rod provided by the present invention;

[0025] Figure 6 Schematic diagram of the protective cover provided by the present invention;

[0026] Figure 7 Schematic diagram of the bottom of the mounting plate provided by the present invention;

[0027] Figure 8 Schematic diagram of the protective plate provided by the present invention.

[0028] In the figure: 1, bottom plate; 2, storage barrel; 3, discharge pipe; 4, first flow sensor; 5, first pumping pump; 6, feed pipe; 7, mixing barrel; 8, temperature sensor; 9, return pipe; 10, second pumping pump; 11, circulation pipe; 12, second flow sensor; 13, connecting pipe; 14, third flow sensor; 15, grouting pump; 16, grouting pipe; 17, connecting hose; 18, grouting head; 19, mounting sleeve; 20, mounting rod; 21, protective cover; 22, mounting block; 23, mounting plate; 24, probe; 25, observation pipe; 26, observation cover; 27, first motor; 28, driving rod; 29, stirring blade; 30, first control panel; 31, feed inlet; 32, visual window; 33, fixing plate; 34, support rod; 35, guide rod; 36, second motor; 37, threaded rod; 38, limiting plate; 39, limiting rod; 40, second control panel; 41, water storage pipe; 42, water pump; 43, water outlet pipe; 44, spray head; 45, mounting seat; 46, guiding block; 47, protective plate; 48, limiting block; 49, mounting bolt; 50, clamping rod; 51, clamping block. Detailed implementation manners

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0030] Please refer to Figures 1 - 8As shown in the figure, a refined intelligent grouting device for surrounding rock of underground engineering includes a bottom plate 1. At the top of the bottom plate 1, there are multiple groups of material storage cylinders 2. Through the material storage cylinders 2, it is convenient to store slurry materials such as cement, water, additives, etc. On the outside of the material storage cylinder 2, there is a discharge pipe 3. On the outside of the discharge pipe 3, there is a first flow sensor 4. Through the first flow sensor 4, the injection flow rate of the slurry material can be monitored to improve the slurry mixing effect. One end of the discharge pipe 3 is provided with a first pumping pump 5. The discharge end of the first pumping pump 5 is provided with a feed pipe 6. One end of the feed pipe 6 is provided with a mixing cylinder 7. Through the first pumping pump 5 and the feed pipe 6, the slurry material is pumped into the mixing cylinder 7. Through the mixing cylinder 7, the effect of mixing the slurry material is achieved. At the top of the mixing cylinder 7, there is a temperature sensor 8. Through the temperature sensor 8, the effect of monitoring the slurry temperature is achieved, avoiding the problem that the reaction rate may get out of control due to the inability to monitor the temperature, thus affecting the performance and stability of the slurry. On the outside of the mixing cylinder 7, there is a reflux pipe 9. Through the reflux pipe 9, the precipitation and stratification of the slurry can be prevented. One end of the reflux pipe 9 is provided with a second pumping pump 10. The discharge end of the second pumping pump 10 is provided with a circulation pipe 11. One end of the circulation pipe 11 is communicated with the outside of the mixing cylinder 7. Through the second pumping pump 10 and the reflux pipe 9, the slurry inside the mixing cylinder 7 is pumped out, and through the circulation pipe 11, the slurry is discharged into the mixing cylinder 7 to prevent the precipitation and stratification of the slurry, maintain the flow in the slurry, reduce the accumulation and precipitation of sediment, ensure the uniformity of the slurry during the flow process, and prevent the accumulation of particles in specific areas. On the outside of the circulation pipe 11, there is a second flow sensor 12. Through the second flow sensor 12, the flow rate of the reflux slurry can be monitored. If the slurry shows a stratification phenomenon, the reflux speed and time can be appropriately increased to improve its uniformity. On one side of the mixing cylinder 7, there is a connecting pipe 13. On the outside of the connecting pipe 13, there is a third flow sensor 14. Through the third flow sensor 14, the grouting flow rate can be monitored to improve the accuracy of surrounding rock grouting. The above-mentioned flow sensors are all prior arts, instruments for measuring the flow rate of liquids or gases, which can convert the flow rate of fluids into electrical signal outputs for monitoring, control, and data processing. One end of the connecting pipe 13 is provided with a grouting pump 15. The grouting pump 15 is a prior art and can pump the slurry. The discharge end of the grouting pump 15 is provided with a grouting pipe 16. One end of the grouting pipe 16 is provided with a connecting hose 17. The connecting hose 17 is a prior art and can adjust the pipe length by stretching, thereby adjusting the grouting depth. One end of the connecting hose 17 is provided with a grouting head 18. Through the grouting pump 15, the slurry inside the mixing cylinder 7 is pumped out. Through the third flow sensor 14, the grouting flow rate can be monitored to improve the accuracy of surrounding rock grouting. Through the grouting pipe 16 and the grouting head 18, the surrounding rock is grouted. On the outside of the connecting hose 17, there is a fixed mounting sleeve 19. On the outside of the mounting sleeve 19, there is a fixed mounting rod 20. At the bottom of the mounting rod 20, there is a protective cover 21.The inner wall of the protective cover 21 is fixedly connected with a mounting block 22. One side of the mounting block 22 is fixedly connected with a mounting plate 23. A probe 24 is arranged at the bottom of the mounting plate 23. The probe 24 is used to monitor the grouting process, avoiding problems such as improper slurry ratio, insufficient grouting pressure or too fast grouting speed, so as to improve the compactness and uniformity of grouting, ensure the quality and effect of grouting. Real-time monitoring can also help construction personnel adjust the grouting plan in time to ensure the safety and stability of the construction process. An observation tube 25 is installed on the inner wall of the protective cover 21. An observation cover 26 is installed on the inner wall of the observation tube 25. The probe 24 can monitor the grouting process through the observation tube 25, and the observation cover 26 can protect the lens of the probe 24 to avoid the problem that dust and impurities affect the monitoring effect of the probe 24.,

[0031] A first motor 27 is fixedly connected to the top of the mixing cylinder 7. The output end of the first motor 27 is fixedly connected with a driving rod 28. Stirring blades 29 are fixedly connected to the outside of the driving rod 28. The stirring blades 29 are used to mix the slurry. A first control panel 30 is installed on the top of the mixing cylinder 7. The first motor 27 can be controlled to start and stop through the first control panel 30. A feed inlet 31 is arranged at the top of the mixing cylinder 7. Appropriate dispersant or stabilizer can be added into the mixing cylinder 7 through the feed inlet 31, which can help improve the stability of the slurry and reduce the risk of stratification. These additives can enhance the interaction between particles and make the slurry more stable. A viewing window 32 is arranged on the outside of the mixing cylinder 7. The mixing process of the slurry can be observed through the viewing window 32.,

[0032] A fixing plate 33 is fixedly connected to the outer side of the grouting pipe 16. Fixing plates 33 are fixedly connected to the outer sides of both the grouting pipe 16 and the connecting hose 17. A support rod 34 is fixedly connected to the inner wall of the fixing plate 33. A guide rod 35 is slidably connected to the inner wall of the support rod 34. The bottom of the guide rod 35 is fixed to the fixing plate 33 on the outer side of the connecting hose 17. The length of the connecting hose 17 can be stretched by the guide rod 35, which is convenient for adjusting the grouting depth. A second motor 36 is installed at the top of the support rod 34. The output end of the second motor 36 is fixedly connected to a threaded rod 37. The outer side of the threaded rod 37 is threadedly connected to the inner wall of the guide rod 35. A limiting plate 38 is fixedly connected to the outer side of the guide rod 35. A limiting rod 39 for limiting the guide rod 35 is fixedly connected to the inner wall of the support rod 34. The outer side of the limiting rod 39 is slidably connected to the inner wall of the limiting plate 38. Start the second motor 36 to drive the threaded rod 37 to rotate, so that the guide rod 35 slides inside the support rod 34, driving the limiting plate 38 to slide on the outer side of the limiting rod 39, making the guide rod 35 move vertically up and down. The movement of the guide rod 35 pushes the fixing plate 33 on the outer side of the connecting hose 17 to move, stretching the length of the connecting hose 17, which is convenient for adjusting the grouting depth. A second control panel 40 for controlling the probe 24 is installed at the top of the mounting plate 23. A water storage pipe 41 is installed at the bottom of the mounting plate 23. A water pump 42 is installed at the bottom of the mounting plate 23. The water inlet end of the water pump 42 is communicated with one side of the water storage pipe 41 through a pipeline. The water outlet end of the water pump 42 is provided with a water outlet pipe 43. One end of the water outlet pipe 43 is communicated with the outer side of the observation pipe 25. A spray head 44 is provided at one end of the water outlet pipe 43. The observation cover 26 can be cleaned through the spray head 44. The water flow inside the water storage pipe 41 is pumped out by the water pump 42, and the observation cover 26 is sprayed and cleaned through the water outlet pipe 43 and the spray head 44, avoiding the problem that dust and impurities affect the monitoring clarity of the probe 24 and improving the monitoring effect during the grouting process. A mounting seat 45 is fixedly connected to the top of the bottom plate 1. There are multiple groups of the mounting seats 45. A guide block 46 is slidably connected to the inner wall of the mounting seat 45. A protective plate 47 is fixedly connected to one side of the guide block 46. The mixing cylinder 7 is protected by the protective plate 47, and the mixing cylinder 7 is isolated, which can effectively prevent construction workers or other personnel from accidentally entering the construction area and avoid accidents. By dividing the area of the mixing cylinder 7 through the protective plate 47, the mutual interference during the construction process can be reduced, ensuring the smooth progress of the grouting construction. A limiting block 48 is fixedly connected to the inner wall of the mounting seat 45. The inner wall of the guide block 46 is clamped with the outer side of the limiting block 48. The guide block 46 is limited by the limiting block 48. A mounting bolt 49 for installing the guide block 46 is threadedly connected to the inner wall of the mounting seat 45. The guide block 46 is installed inside the mounting seat 45 through the mounting bolt 49. A clamping rod 50 is fixedly connected to one side of the protective plate 47. Two groups of protective plates 47 are installed through the clamping rod 50. A clamping block 51 is clamped inside the protective plate 47. Two groups of protective plates 47 are limited by the clamping block 51.

[0033] Working principle: When this device is in use, multiple sets of material storage cylinders 2 are provided. The material storage cylinders 2 facilitate the storage of slurry materials such as cement, water, additives, etc. The slurry materials inside the material storage cylinders 2 are pumped into the mixing cylinder 7 through the first pumping pump 5 and the feed pipe 6. The mixing effect of the slurry is achieved through the stirring blades 29. An appropriate amount of dispersant or stabilizer can be added into the mixing cylinder 7 through the feed port 31, which can help improve the stability of the slurry and reduce the risk of stratification. These additives can enhance the interaction between particles and make the slurry more stable. The injection flow rate of the slurry materials can be monitored through the first flow sensor 4 to improve the slurry mixing effect. The temperature of the slurry can be monitored through the temperature sensor 8 to avoid the problem that the reaction rate may get out of control due to the inability to monitor the temperature, thus affecting the performance and stability of the slurry. The slurry inside the mixing cylinder 7 is pumped out through the second pumping pump 10 and the return pipe 9, and the slurry is discharged into the mixing cylinder 7 through the circulation pipe 11, which can prevent the slurry from precipitating and stratifying, maintain the flow in the slurry, reduce the accumulation and precipitation of sediments, ensure the uniformity of the slurry during the flow process, and prevent the particles from accumulating in specific areas. The flow rate of the return slurry can be monitored through the second flow sensor 12. If the slurry shows a stratification phenomenon, the return speed and time can be appropriately increased to improve its uniformity. The slurry inside the mixing cylinder 7 is pumped out through the grouting pump 15, and the grouting flow rate can be monitored through the third flow sensor 14 to improve the accuracy of surrounding rock grouting. The surrounding rock is grouted through the grouting pipe 16 and the grouting head 18. The monitoring of the grouting process is achieved through the probe 24, avoiding problems such as improper slurry ratio, insufficient grouting pressure, or too fast grouting speed, thereby improving the density and uniformity of grouting, ensuring the quality and effect of grouting. Real-time monitoring can also help the construction personnel adjust the grouting plan in time to ensure the safety and stability of the construction process. The probe 24 can monitor the grouting process through the observation pipe 25. The lens of the probe 24 can be protected through the observation cover 26, avoiding the problem that dust and impurities affect the monitoring effect of the probe 24. The second motor 36 is started to drive the threaded rod 37 to rotate, so that the guide rod 35 slides inside the support rod 34, driving the limit plate 38 to slide outside the limit rod 39, making the guide rod 35 move vertically up and down. The movement of the guide rod 35 pushes the fixing plate 33 outside the connecting hose 17 to move, stretching the length of the connecting hose 17, facilitating the adjustment of the grouting depth. The water inside the water storage pipe 41 is pumped out through the water pump 42, and the observation cover 26 is sprayed and cleaned through the water outlet pipe 43 and the nozzle 44, avoiding the problem that dust and impurities affect the monitoring clarity of the probe 24 and improving the monitoring effect of the grouting process. The mixing cylinder 7 is protected through the protective plate 47, isolating the mixing cylinder 7, which can effectively prevent construction personnel or other personnel from accidentally entering the construction area and avoid accidents. The area of the mixing cylinder 7 is divided through the protective plate 47, which can reduce the mutual interference during the construction process and ensure the smooth progress of the grouting construction.

[0034] It should be noted that in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising a..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the said element.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An intelligent grouting device for underground engineering surrounding rock refinement, comprising a bottom plate (1), characterized in that: Also includes: A material storage barrel (2) is arranged on the top of the bottom plate (1), a discharge pipe (3) is arranged on the outside of the material storage barrel (2), a first flow sensor (4) for monitoring the injection flow of slurry material is arranged on the outside of the discharge pipe (3), a first pumping pump (5) is arranged at one end of the discharge pipe (3), a feed pipe (6) is arranged at the discharge end of the first pumping pump (5), a mixing barrel (7) for mixing the slurry material is arranged at one end of the feed pipe (6), a temperature sensor (8) for monitoring the slurry temperature is arranged at the top of the mixing barrel (7), a reflux pipe (9) for preventing slurry precipitation and stratification is arranged on the outside of the mixing barrel (7), a second pumping pump (10) is arranged at one end of the reflux pipe (9), a circulation pipe (11) is arranged at the discharge end of the second pumping pump (10), and a second flow sensor (12) for monitoring the flow rate of the reflux slurry is arranged on the outside of the circulation pipe (11); A connecting pipe (13) is arranged on one side of the mixing drum (7), a third flow sensor (14) for monitoring the grouting flow rate is arranged on the outer side of the connecting pipe (13), a grouting pump (15) is arranged at one end of the connecting pipe (13), a grouting pipe (16) is arranged at the discharge end of the grouting pump (15), a connecting hose (17) for adjusting the grouting depth is arranged at one end of the grouting pipe (16), a grouting head (18) is arranged at one end of the connecting hose (17), and a mounting sleeve (19) is fixedly connected to the outer side of the connecting hose (17), The outer side of the mounting sleeve (19) is fixedly connected to a mounting rod (20), the bottom of the mounting rod (20) is provided with a protective cover (21), the inner wall of the protective cover (21) is fixedly connected to a mounting block (22), one side of the mounting block (22) is fixedly connected to a mounting plate (23), the bottom of the mounting plate (23) is provided with a probe (24) for monitoring the grouting process, the inner wall of the protective cover (21) is provided with an observation tube (25), and the inner wall of the observation tube (25) is provided with an observation cover (26) for protecting the probe (24).

2. According to claim 1, a refined intelligent grouting device for surrounding rock in underground engineering, characterized in that: A first motor (27) is fixedly connected to the top of the mixing cylinder (7), a driving rod (28) is fixedly connected to the output end of the first motor (27), and a stirring blade (29) for mixing the slurry is fixedly connected to the outer side of the driving rod (28).

3. According to claim 1, a refined intelligent grouting device for surrounding rock in underground engineering, characterized in that: A first control panel (30) is installed on the top of the mixing cylinder (7), a feed port (31) is arranged on the top of the mixing cylinder (7), and a visual window (32) for observing slurry mixing is arranged on the outside of the mixing cylinder (7).

4. According to claim 1, a refined intelligent grouting device for surrounding rock in underground engineering, characterized in that: A fixing plate (33) is fixedly connected to the outer side of the grouting pipe (16), a support rod (34) is fixedly connected to the inner wall of the fixing plate (33), and a guide rod (35) for stretching the length of the connecting hose (17) is slidably connected to the inner wall of the support rod (34).

5. According to claim 4, the underground engineering surrounding rock refined intelligent grouting device is characterized by: A second motor (36) is mounted on the top of the support rod (34); a threaded rod (37) is fixedly connected to the output end of the second motor (36); a limiting plate (38) is fixedly connected to the outer side of the guide rod (35); and a limiting rod (39) for limiting the guide rod (35) is fixedly connected to the inner wall of the support rod (34).

6. The underground engineering surrounding rock refined intelligent grouting device according to claim 1 is characterized by: A second control panel (40) for controlling the probe (24) is installed on the top of the installation plate (23), and a water storage pipe (41) is installed on the bottom of the installation plate (23).

7. The underground engineering surrounding rock refined intelligent grouting device according to claim 1 is characterized by: A water pump (42) is installed at the bottom of the mounting plate (23), a water outlet end of the water pump (42) is provided with a water outlet pipe (43), and one end of the water outlet pipe (43) is provided with a nozzle (44) for cleaning the observation cover (26).

8. The underground engineering surrounding rock refined intelligent grouting device according to claim 1 is characterized by: The top of the bottom plate (1) is fixedly connected to a mounting seat (45), the inner wall of the mounting seat (45) is slidably connected to a guide block (46), and one side of the guide block (46) is fixedly connected to a protective plate (47) for protecting the mixing cylinder (7).

9. The underground engineering surrounding rock refined intelligent grouting device according to claim 8, characterized in that: A limiting block (48) for limiting the position of the guide block (46) is fixedly connected to the inner wall of the mounting seat (45), and a mounting bolt (49) for mounting the guide block (46) is threadedly connected to the inner wall of the mounting seat (45).

10. The underground engineering surrounding rock refined intelligent grouting device according to claim 8, characterized in that: A clamping rod (50) is fixedly connected to one side of the protective plate (47), and a clamping block (51) is clamped on the inner wall of the protective plate (47).

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