Grouting device of shield tunneling machine

Abstract

The grouting device of the shield tunneling machine comprises a grouting assembly, the grouting assembly comprises a rectangular movable vehicle body, a grouting pipe arranged in the longitudinal center of the vehicle body and an auger arranged in the grouting pipe, the grouting pipe comprises three sections of short grouting pipes which are coaxially arranged, and every two adjacent sections of short grouting pipes are detachably connected through a butt joint ring. A moving assembly capable of removing the detached short grouting pipes for internal cleaning is arranged above the vehicle body, the moving assembly comprises a lead screw mechanism, a connecting assembly capable of reciprocating along a lead screw is arranged on the lead screw in the lead screw mechanism, and the connecting assembly is connected with the short grouting pipe located in the middle. The grouting assembly can be prevented from being blocked due to the fact that slurry is solidified in the grouting assembly, and follow-up use is affected, and the grouting assembly has the beneficial effects that disassembly and assembly are convenient, grouting equipment can be conveniently cleaned, the operation efficiency is high, and the workload of workers can be reduced.

Description

Technical Field

[0001] The invention relates to the technical field of shield machine grouting, in particular to a shield machine grouting device. Background Art

[0002] A shield machine is a tunnel boring machine that uses the shield method. The shield construction method is that the tunnel boring machine builds (lays) the "shield" (referring to the supporting segments) of the tunnel while excavating. It is different from the open construction method. Internationally, the broad shield machine can also be used in rock formations, but it is different from the open (non-shield method) tunnel boring machine. In my country, it is customary to call the tunnel boring machine used in soft soil formations a (narrow sense) shield machine, and the one used in rock formations a (narrow sense) TBM.

[0003] The basic working principle of the shield machine is that a steel component of a circular grouting pipe is pushed forward along the axis of the tunnel while excavating the soil. The shell of the circular grouting pipe component is the shield, which plays a temporary support role for the excavated tunnel section that has not yet been lined, bearing the pressure of the surrounding soil layers, and sometimes also bearing the groundwater pressure and keeping the groundwater out. Excavation, soil discharge, lining and other operations are carried out under the cover of the shield. During the shield excavation process, synchronous grouting is required to be carried out simultaneously with the excavation, and the appropriate amount of grouting material is filled to make it dense, so that the surrounding rock and soil can obtain timely support, effectively prevent the collapse of the soil, control the settlement of the surface, fix the position of the pipe segment, prevent water accumulation behind the pipe segment, and ensure that the shield tunnel will not deform or leak after construction.

[0004] At present, the existing grouting device for shield machines stops grouting for too long, and the slurry remaining in the slurry pipe hardens and causes blockage. The grouting pipe needs to be removed to clear the blockage. However, the existing grouting equipment is not convenient to disassemble and assemble after use, which affects the operator's cleaning of the grouting equipment and affects the operating efficiency. Summary of the invention

[0005] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a shield machine grouting device which is easy to disassemble and assemble, convenient for cleaning the grouting equipment and has high operating efficiency.

[0006] In order to solve the above technical problems, the technical solution provided by the present invention is: A shield machine grouting device includes a grouting assembly, which includes a rectangular movable body, a grouting pipe arranged at the longitudinal center of the body, and an auger installed on the grouting pipe. The grouting pipe includes three coaxially arranged short grouting pipes, and two adjacent short grouting pipes are detachably connected via a docking ring. A movable assembly is provided above the body, which can remove the disassembled short grouting pipes for internal cleaning. The movable assembly includes a screw mechanism, and the screw in the screw mechanism is provided with a connecting assembly that can reciprocate along the screw, and the connecting assembly is connected to the short grouting pipe located in the middle.

[0007] As a further improvement of the above technical solution: The three short grouting pipes are respectively a butt-joint grouting pipe located in the middle, a grouting pipe one located at the feed end and a grouting pipe two located at the discharge end. The butt-joint ring comprises a butt-joint ring one with an annular boss and a butt-joint ring two with an inner concave countersunk hole. One end of the butt-joint grouting pipe is provided with a butt-joint ring one, and the other end is provided with a butt-joint ring two. One end of the grouting pipe one is provided with a butt-joint ring one for docking with the butt-joint ring two on the butt-joint grouting pipe, and one end of the grouting pipe two is provided with a butt-joint ring two for docking with the butt-joint ring one on the butt-joint grouting pipe. When docking, the boss of the butt-joint ring one is embedded in the concave hole of the butt-joint ring two, and the butt-joint ring one and the butt-joint ring two are detachably connected by circumferentially arranged bolts.

[0008] The side wall of the inner concave counterbore of the docking ring 2 is symmetrically provided with docking grooves, and the boss of the docking ring 1 is symmetrically provided with docking blocks corresponding to the positions of the docking grooves, and the docking blocks can be clamped in the docking grooves.

[0009] Support blocks are symmetrically arranged at both ends of the vehicle body between the two side plates, and a concave semicircular support portion is arranged on the top of the support block. Grouting pipe 1 and grouting pipe 2 are respectively placed on the semicircular support portion of a support block. A mounting block is inserted into the inner cavity of the outer end of grouting pipe 1 and is detachably connected by bolts. The driving end of the auger is mounted on the mounting block, and a feed hopper is arranged on the top of grouting pipe 1.

[0010] A fixing plate for installing the screw mechanism is installed on the top of each supporting block on both side plates of the vehicle body. The fixing plate and the corresponding supporting block are located in the same vertical plane and are connected to the top of the side plate of the vehicle body by bolts. A semicircular recess is provided on the bottom of the fixing plate, and a circular space for the grouting pipe to pass through is formed between the semicircular recess and the semicircular supporting portion of the supporting block; the motor in the screw mechanism is arranged in the middle of the fixing plate corresponding to the second grouting pipe, the screw is arranged parallel to the top of the grouting pipe, one end of the screw is connected to the output shaft of the motor, and the other end extends longitudinally along the vehicle body and is rotatably installed on the fixing plate corresponding to the first grouting pipe.

[0011] The connecting assembly includes a movable plate slidably mounted on a screw rod, the movable plate is in a door-shaped structure and is parallel to a fixed plate, two screw rods vertically penetrating downward are provided on the top of the movable plate, two connecting blocks are provided on the top of the docking grouting pipe, and the bottom end of the screw rod is connected to the connecting block by a thread.

[0012] When the movable plate moves along the screw rod, it is guided by the guide assembly. The guide assembly includes two guide rods symmetrically arranged on both sides of the screw rod and parallel to it. One end of the guide rod is slidably inserted into the fixed plate corresponding to the grouting pipe 2, and the other end of the guide rod is provided with a thread and is threadedly connected to the fixed plate corresponding to the grouting pipe 1. The middle part of the guide rod slides out of the side of the movable plate.

[0013] The guide assembly also includes longitudinal grooves symmetrically arranged on the tops of the two side plates of the vehicle body and pulleys arranged on the bottoms of the two sides of the movable plate, and the movable plate is slidably arranged in the grooves through the pulleys.

[0014] The vehicle body is provided with through grooves symmetrically opened at both ends of the bottom plate and a scraper located below the grouting pipe and between the through grooves at both ends. The top of the scraper is provided with a semicircular inner recess, and the bottom of the scraper is in slidable contact with the top of the bottom plate of the vehicle body. Slide rods extending outward to both sides of the vehicle body are symmetrically installed on both sides of the scraper. Longitudinal slide grooves are opened on the two side plates of the vehicle body, and the outer ends of the slide rods pass through the corresponding slide grooves. Connecting plates extending downward are provided on both sides of the movable plate, and the slide rods are connected to the connecting plates by bolts. When the movable plate moves back and forth, it can drive the scraper to move, scrape and collect the mud dripping into the vehicle body, and discharge it through the through grooves at both ends.

[0015] Both ends of the butt grouting pipe are provided with sealing pads, and the bottom of the vehicle body is provided with moving wheels.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The shield machine grouting device of the present invention comprises a grouting pipe including three sections of coaxially arranged short grouting pipes, two adjacent sections of short grouting pipes are detachably connected via a docking ring, a screw mechanism capable of removing the disassembled short grouting pipes for internal cleaning is provided above the vehicle body, the grouting pipe 2 and the docking grouting pipe are disassembled, and then the motor is started to transport the movable plate and the docking grouting pipe out via the screw, and then the docking grouting pipe is disassembled for separate cleaning. The disassembly and cleaning of the grouting assembly is convenient, and the slurry can be prevented from solidifying inside the grouting assembly, causing the grouting assembly to be blocked, and affecting subsequent use.

[0017] The shield machine grouting device of the present invention can drive the scraper to scrape the mud dripping from the inside of the vehicle body while the movable plate moves, and discharge it through the through groove, which is convenient for operators to clean up, thereby reducing the workload of operators and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the main structure of the present invention.

[0019] Figure 2 It is a schematic diagram of the internal structure of the grouting pipe in the present invention.

[0020] Figure 3 It is a schematic diagram of the three-dimensional installation structure of the vehicle body and the screw mechanism in the present invention.

[0021] Figure 4 It is a schematic diagram of the main structure of the butt-jointed grouting pipe in the present invention.

[0022] Figure 5 It is a schematic diagram of the side structure of the docking ring 2 in the present invention.

[0023] Figure 6 It is a schematic diagram of the side structure of the movable plate in the present invention.

[0024] In the figure: 1. Grouting assembly; 11. Car body; 111. Support block; 12. Through groove; 13. Grouting pipe one; 131. Feed hopper; 14. Docking ring one; 15. Docking grouting pipe; 151. Docking ring two; 16. Grouting pipe two; 17. Auger; 2. Moving assembly; 21. Fixed plate; 22. Movable plate; 23. Motor; 231. Screw rod; 24. Connecting plate; 25. Screw rod; 26. Connecting block; 27. Slide groove; 28. Scraper; 281. Slide rod; 3. Guide assembly; 30. Guide rod; 31. Groove; 32. Pulley; 33. Docking groove; 34. Docking block; 35. Sealing pad; 37. Mounting block. DETAILED DESCRIPTION

[0025] The invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] like Figure 1-Figure 6 As shown, the shield machine grouting device of this embodiment includes a grouting assembly 1, which includes a rectangular movable body 11, a grouting pipe arranged at the longitudinal center of the body 11, and an auger 17 installed on the grouting pipe. The grouting pipe includes three coaxially arranged short grouting pipes, and two adjacent short grouting pipes are detachably connected through a docking ring. A movable assembly 2 is provided above the body 11, which can remove the disassembled short grouting pipe for internal cleaning. The movable assembly 2 includes a screw mechanism, and a screw 231 in the screw mechanism is provided with a connecting assembly that can reciprocate along it, and the connecting assembly is connected to the short grouting pipe located in the middle. The present invention facilitates the disassembly and cleaning of the grouting assembly, and can prevent the mud from solidifying inside the grouting assembly, causing the grouting assembly to be blocked, affecting subsequent use.

[0027] In this embodiment, the three short grouting pipes are respectively a docking grouting pipe 15 located in the middle, a grouting pipe 13 located at the feed end and a grouting pipe 16 located at the discharge end. The docking ring includes a docking ring 14 with an annular boss and a docking ring 151 with an inner concave countersunk hole. One end of the docking grouting pipe 15 is provided with a docking ring 14, and the other end is provided with a docking ring 151. One end of the grouting pipe 13 is provided with a docking ring 14 to dock with the docking ring 151 on the docking grouting pipe 15. One end of the grouting pipe 16 is provided with a docking ring 151 to dock with the docking ring 14 on the docking grouting pipe 15. When docking, the boss of the docking ring 14 is embedded in the concave hole of the docking ring 151, and the docking ring 14 and the docking ring 151 are detachably connected by circumferentially arranged bolts.

[0028] In this embodiment, a docking groove 33 is symmetrically provided on the side wall of the inner concave counterbore of the docking ring 2 151, and a docking block 34 corresponding to the position of the docking groove 33 is symmetrically provided on the boss of the docking ring 14, and the docking block 34 can be clamped in the docking groove 33. During subsequent installation, the docking groove 33 and the docking block 34 can be docked, which is convenient for the docking of the bolts at the circumferential position with the threaded groove, and is convenient for fixing, thereby improving the installation efficiency.

[0029] In this embodiment, support blocks 111 are symmetrically arranged between the two side plates at both ends of the vehicle body 11. The two support blocks 111 are parallel to each other and perpendicular to the longitudinal direction of the vehicle body. A concave semicircular support portion is arranged on the top of the support block 111. Grouting pipe 13 and grouting pipe 2 16 are respectively placed on the semicircular support portion of one support block 111. A mounting block 37 is inserted into the inner cavity of the outer end of the grouting pipe 13 and is detachably connected by bolts. The driving end of the auger 17 is mounted on the mounting block 37. A feed hopper 131 is arranged on the top of the grouting pipe 13. When the auger 17 needs to be cleaned after use, the mounting block 37 can be disassembled, and then the entire auger 17 can be disassembled for cleaning or maintenance, which is convenient and quick to use.

[0030] In this embodiment, rectangular fixing plates 21 for installing the screw mechanism are installed on the top of each side plate of the vehicle body 11 above each support block 111. The fixing plates 21 are parallel to each other and perpendicular to the longitudinal direction of the vehicle body 11. The fixing plates 21 and the corresponding support blocks 111 are located in the same vertical plane and are connected to the top of the side plates of the vehicle body 11 by bolts. The length of the fixing plate 21 is consistent with the width of the vehicle body. A semicircular recess is provided at the bottom of the fixing plate 21, and a circular space for the grouting pipe to pass through is formed between the semicircular recess and the semicircular support portion of the support block 111; the motor 23 in the screw mechanism is arranged in the middle of the fixing plate 21 corresponding to the grouting pipe 16, and the screw 231 is arranged parallel to the top of the grouting pipe, one end of which is connected to the output shaft of the motor 23, and the other end extends longitudinally along the vehicle body 11 and is rotatably installed on the fixing plate 21 corresponding to the grouting pipe 13. The fixing plate is connected to the vehicle body by bolts. When parts are damaged later, the entire moving assembly can be disassembled for maintenance or replacement of the parts, avoiding the disassembly and cleaning of the grouting assembly affected by the damage of the parts.

[0031] In this embodiment, the connection assembly includes a movable plate 22 slidably mounted on the screw rod 231, the movable plate 22 is a door-shaped structure and is parallel to the fixed plate 21, two screw rods 25 are vertically penetrated downward on the top of the movable plate 22, and two connecting blocks 26 are arranged on the top of the docking grouting pipe 15, and the bottom ends of the screw rods 25 are connected to the connecting blocks 26 by threads. The movable plate 22 plays an auxiliary supporting role for the docking grouting pipe 15 to prevent the docking grouting pipe 15 from being too heavy and causing difficulty in disassembly.

[0032] In this embodiment, the movable plate 22 is guided by the guide assembly 3 when moving along the screw rod 231. The guide assembly 3 includes two guide rods 30 symmetrically arranged on both sides of the screw rod 231 and parallel to the screw rod 231. One end of the guide rod 30 is slidably inserted into the fixed plate 21 corresponding to the grouting pipe 16. The other end of the guide rod 30 is provided with a thread and is threadedly connected with the fixed plate 21 corresponding to the grouting pipe 13. The middle part of the guide rod 30 slides out of the side of the movable plate 22. When the guide rod 30 is damaged and deformed later, it can be screwed out of the fixed plate 21 by screwing the guide rod 30 for replacement and disassembly, so as to avoid affecting the movement of the movable plate 22.

[0033] In this embodiment, the guide assembly 3 further includes longitudinal grooves 31 symmetrically arranged at the top of the two side plates of the vehicle body 11 and pulleys 32 arranged at the bottom of the two sides of the movable plate 22, and the movable plate 22 is slidably arranged in the grooves 31 through the pulleys 32. This structure can make the movement of the movable plate easier and more stable, and more convenient to use.

[0034] In this embodiment, the vehicle body 11 is provided with through grooves 12 symmetrically opened at both ends of the bottom plate and a scraper 28 located below the grouting pipe and between the through grooves 12 at both ends. The top of the scraper 28 is provided with a semicircular inner concave portion, and the bottom of the scraper 28 can slidably contact with the top of the bottom plate of the vehicle body 11. The two sides of the scraper 28 are symmetrically equipped with slide bars 281 extending outwards from both sides of the vehicle body 11. The two side plates of the vehicle body 11 are provided with longitudinal slide grooves 27, and the outer ends of the slide bars 281 pass through the corresponding slide grooves 27. The two sides of the movable plate 22 are provided with connecting plates 24 extending downwards, and the slide bars 281 are connected to the connecting plates 24 by bolts. When the movable plate 22 moves back and forth, it can drive the scraper 28 to move and scrape and collect the mud dripping into the vehicle body 11 and discharge it through the through grooves 12 at both ends. It can prevent the mud from falling directly to the ground, which makes it difficult to clean up, and can reduce the workload of the operator and improve the working efficiency.

[0035] In this embodiment, both ends of the butt joint grouting pipe 15 are provided with sealing pads 35, which can increase the sealing between the butt joint grouting pipe 15 and the other two short grouting pipes to avoid mud leakage during use, which affects the use of the device. The bottom of the vehicle body 11 is provided with moving wheels for easy mobile use.

[0036] Working principle: When in use, the mud is transported to the interior of the grouting pipe 13 through the feed hopper 131, and then pushed out through the auger 17 to fill the soil layer so that the subsequent shield machine can operate. Since the docking ring 151 is bolted to the docking ring 14, the fixing bolts between the docking ring 151 and the docking ring 14 are removed after use, and the grouting pipe 16 is taken down, and then the motor 23 is started by an external power supply to drive the screw rod 231 to rotate. Since the two guide rods 30 pass through the movable plate 22 and are slidably connected thereto, and the movable plate 22 is connected to the docking grouting pipe 15 through the screw rod 25 and the connecting block 26, the rotation of the screw rod 231 can drive the movable plate 22 to move back and forth on the top of the vehicle body 11, and move the docking grouting pipe 15 to the tail of the vehicle body 11 (i.e., the discharging end), and then the screw rod 25 is screwed out of the connecting block 26 to release the connection with the docking grouting pipe 15, and the docking grouting pipe 15 is removed for separate cleaning. After the docking grouting pipe 15 and the grouting pipe 16 are disassembled, the entire auger 17 is exposed to the outside, which is convenient for operators to dredge or clean. Cleaning and disassembly are more convenient, which can prevent mud from solidifying inside the grouting component 1 and causing blockage of the grouting component 1, affecting subsequent use.

[0037] Since the connecting plates 24 arranged on both sides of the movable plate 22 are connected to the sliding rods 281 arranged on both sides of the scraper 28, when the movable plate 22 moves, the connecting plates 24 can drive the sliding rods 281 to slide in the slide grooves 27, and drive the scraper 28 to move back and forth inside the vehicle body 11, so that the mud dripping inside the vehicle body 11 is scraped and collected and discharged through the through grooves 12, which is convenient for the operator to clean and avoids the mud from falling directly to the ground, which makes it difficult to clean. The workload of the operator can be reduced and the working efficiency can be improved.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A shield machine grouting device, comprising a grouting assembly (1), wherein the grouting assembly (1) comprises a rectangular movable vehicle body (11), a grouting pipe arranged at the longitudinal center of the vehicle body (11), and an auger (17) installed on the grouting pipe, characterized in that: The grouting pipe comprises three sections of coaxially arranged short grouting pipes, two adjacent sections of the short grouting pipes are detachably connected via a docking ring, a moving component (2) capable of removing the disassembled short grouting pipes for internal cleaning is provided above the vehicle body (11), the moving component (2) comprising a screw mechanism, a screw (231) in the screw mechanism being provided with a connecting component capable of reciprocating along the screw, the connecting component being connected to the short grouting pipe located in the middle.

2. The shield machine grouting device according to claim 1, characterized in that: The three short grouting pipes are respectively a butt-joint grouting pipe (15) located in the middle, a grouting pipe 1 (13) located at the feed end, and a grouting pipe 2 (16) located at the discharge end. The butt-joint ring comprises a butt-joint ring 1 (14) having an annular boss and a butt-joint ring 2 (151) having an inner concave countersunk hole. The butt-joint grouting pipe (15) is provided with a butt-joint ring 1 (14) at one end and a butt-joint ring 2 (151) at the other end. The butt-joint grouting pipe 1 (13) is provided with a butt-joint ring 1 (14) at one end and is butt-jointed with the butt-joint ring 2 (151) on the butt-joint grouting pipe (15). The butt-joint ring 2 (151) is provided with a butt-joint ring 1 (14) at one end and is butt-jointed with the butt-joint ring 1 (14) on the butt-joint grouting pipe (15). When butt-joined, the boss of the butt-joint ring 1 (14) is embedded in the concave hole of the butt-joint ring 2 (151). The butt-joint ring 1 (14) and the butt-joint ring 2 (151) are detachably connected by bolts arranged circumferentially.

3. The shield machine grouting device according to claim 2, characterized in that: A docking groove (33) is symmetrically provided on the side wall of the inner concave counterbore of the docking ring 2 (151), and a docking block (34) corresponding to the position of the docking groove (33) is symmetrically provided on the boss of the docking ring 1 (14), and the docking block (34) can be clamped in the docking groove (33).

4. The shield machine grouting device according to claim 2, characterized in that: Support blocks (111) are symmetrically arranged between the two side plates at both ends of the vehicle body (11), and a concave semicircular support portion is arranged on the top of the support block (111). The grouting pipe (13) and the grouting pipe (16) are respectively placed on the semicircular support portion of the support block (111). A mounting block (37) is inserted into the inner cavity of the outer end of the grouting pipe (13) and is detachably connected by bolts. The driving end of the auger (17) is mounted on the mounting block (37), and a feed hopper (131) is arranged on the top of the grouting pipe (13).

5. The shield machine grouting device according to claim 4, characterized in that: A fixing plate (21) for mounting the screw mechanism is installed above each support block (111) on the top of both side plates of the vehicle body (11); the fixing plate (21) and the corresponding support block (111) are located in the same vertical plane and are connected to the top of the side plate of the vehicle body (11) by bolts; a semicircular recess is provided at the bottom of the fixing plate (21); a circular space for the grouting pipe to pass through is formed between the semicircular recess and the semicircular support portion of the support block (111); the motor (23) in the screw mechanism is arranged in the middle of the fixing plate (21) corresponding to the second grouting pipe (16); the screw (231) is arranged in parallel above the grouting pipe, one end of which is connected to the output shaft of the motor (23), and the other end of which extends longitudinally along the vehicle body (11) and is rotatably installed on the fixing plate (21) corresponding to the first grouting pipe (13).

6. The shield machine grouting device according to claim 5, characterized in that: The connection assembly comprises a movable plate (22) slidably mounted on a screw rod (231); the movable plate (22) is in a door-shaped structure and is parallel to the fixed plate (21); two screw rods (25) are vertically penetrated downwardly at the top of the movable plate (22); two connecting blocks (26) are provided at the top of the butt grouting pipe (15); and the bottom ends of the screw rods (25) are connected to the connecting blocks (26) by threads.

7. The shield machine grouting device according to claim 6, characterized in that: When the movable plate (22) moves along the screw rod (231), it is guided by the guide assembly (3). The guide assembly (3) comprises two guide rods (30) symmetrically arranged on both sides of the screw rod (231) and parallel to the screw rod (231). One end of the guide rod (30) is slidably inserted into the fixed plate (21) corresponding to the second grouting pipe (16). The other end of the guide rod (30) is provided with a thread and is threadedly connected to the fixed plate (21) corresponding to the first grouting pipe (13). The middle part of the guide rod (30) slides out of the side of the movable plate (22).

8. The shield machine grouting device according to claim 7, characterized in that: The guide assembly (3) further comprises longitudinal grooves (31) symmetrically arranged at the tops of the two side plates of the vehicle body (11) and pulleys (32) arranged at the bottoms of the two sides of the movable plate (22); the movable plate (22) is slidably arranged in the grooves (31) via the pulleys (32).

9. The shield machine grouting device according to any one of claims 6 to 8, characterized in that: The vehicle body (11) is provided with through grooves (12) symmetrically opened at both ends of the bottom plate and a scraper (28) located below the grouting pipe and between the through grooves (12) at both ends. The top of the scraper (28) is provided with a semicircular inner concave portion. The bottom of the scraper (28) is in slidable contact with the top of the bottom plate of the vehicle body (11). Slide rods (281) extending outwards from both sides of the vehicle body (11) are symmetrically installed on both sides of the scraper (28). Longitudinal slide grooves (27) are opened on the two side plates of the vehicle body (11). The outer ends of the slide rods (281) pass through the corresponding slide grooves (27). The two sides of the movable plate (22) are provided with connecting plates (24) extending downwards. The slide rods (281) are connected to the connecting plates (24) by bolts. When the movable plate (22) moves back and forth, it can drive the scraper (28) to move, scrape and collect the mud dripping into the vehicle body (11), and discharge it through the through grooves (12) at both ends.

10. The shield machine grouting device according to any one of claims 2 to 8, characterized in that: Sealing pads (35) are provided at both ends of the butt grouting pipe (15), and moving wheels are provided at the bottom of the vehicle body (11).

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