A pipe segment grouting pipe reaming device

Abstract

The application relates to the field of tunnel construction, in particular to a segment grouting pipe reaming device, which comprises a telescopic assembly used for being positioned on a tunnel segment, a first driving assembly is connected to the telescopic assembly, a rotating shaft rod is connected to the first driving assembly, a screw thread milling cutter is connected to the rotating shaft rod, and a slag discharging groove is formed in the rotating shaft rod and the screw thread milling cutter. The application has the effect that a hoisting screw can be screwed into a corresponding grouting pipe without damaging the grouting pipe.

Description

Technical Field

[0001] This application relates to the field of tunnel construction, and in particular to a segment grouting pipe expansion device. Background Technology

[0002] After the initial excavation of the subway tunnel is completed using a tunnel boring machine, several tunnel pipes connected end to end need to be laid in the subway tunnel. The outer wall of the tunnel pipe is attached to the subway tunnel wall. The tunnel pipe can support the tunnel and leave space in the tunnel pipe for the subway track to be laid and for the subway to pass through. Each tunnel pipe is spliced ​​together from several arc-shaped pipe segments.

[0003] In the existing technology, during the splicing of tunnel segments, in order to facilitate the hoisting of arc-shaped segments, it is necessary to leave several grouting holes on the arc-shaped sidewalls of the segments in advance, and fix a plastic grouting pipe in each grouting hole; the inner wall of the grouting pipe is provided with an internal thread that mates with the pre-set hoisting screw thread; in practice, the hoisting of the corresponding arc-shaped segment is achieved by screwing the hoisting screw into the corresponding grouting pipe and connecting it with the corresponding grouting pipe thread, and then moving the hoisting screw.

[0004] In the process of developing this application, it was found that the above-mentioned technology has at least the following problems: However, since the arc-shaped pipe segment has an arc-shaped structure, the grouting pipe will be subjected to a large compressive force during the processing and movement of the arc-shaped pipe segment. Also, since the grouting pipe is made of plastic, its internal threads are easily deformed when it is compressed, which makes it difficult to screw the lifting screw into the corresponding grouting pipe. If the lifting screw is forcibly screwed into the corresponding grouting pipe, it is easy to damage the corresponding grouting pipe. It can be seen that it is difficult to screw the lifting screw into the corresponding grouting pipe without damaging the grouting pipe using the existing technology. Summary of the Invention

[0005] To facilitate the screwing of the hoisting bolt into the corresponding grouting pipe without damaging the grouting pipe, this application provides a segment grouting pipe expansion device.

[0006] This application provides a segment grouting pipe expansion device, which adopts the following technical solution:

[0007] A grouting pipe expansion device for tunnel segments includes a telescopic assembly, a first driving member connected to the telescopic assembly, a rotating shaft connected to the first driving member, a threaded milling cutter connected to the rotating shaft, and a slag discharge groove jointly formed on the threaded milling cutter and the rotating shaft.

[0008] By adopting the above technical solution, the first drive component drives the rotating shaft, which in turn drives the threaded milling cutter to rotate. At the same time, the telescopic component drives the rotating shaft to gradually extend into the grouting pipe in the tunnel segment. As the threaded milling cutter rotates as it gradually extends into the grouting pipe, it mills a new thread in the grouting pipe that is compatible with the lifting screw, thus achieving the enlargement of the grouting pipe. The slag generated during the enlargement process is discharged from the discharge chute. In this way, the lifting screw can be screwed into the grouting pipe normally, which makes it easy to screw the lifting screw into the corresponding grouting pipe without damaging the grouting pipe.

[0009] In one specific implementation, the telescopic component is connected to a second driving component, the second driving component is connected to the first driving component, and the first driving component is provided with a first slag suction component.

[0010] By adopting the above technical solution, during the reaming process of the grouting pipe, the telescopic component allows the rotating shaft and the threaded milling cutter connected to the rotating shaft to detach from the grouting pipe. Then, the second drive component is driven to rotate, thereby aligning the second slag suction structure on the second drive component with the grouting pipe. Then, the telescopic component gradually moves the first slag suction component closer to the grouting pipe, stops after moving to a preset position, and then activates the first slag suction component to suck out the slag generated during the reaming process of the grouting pipe. This helps to prevent the slag in the grouting pipe from adversely affecting the subsequent screwing-in process of the hoisting screw.

[0011] In one specific implementation, the telescopic assembly is connected to a mounting plate, and at least two limiting rods are connected to the mounting plate. The limiting rods are slidably connected to the first driving component. A spring is sleeved on the limiting rod to abut against the first driving component, and an abutment joint is connected to the limiting rod to abut against the spring.

[0012] By adopting the above technical solution, if the grouting pipe is severely bent or broken inside, the first drive component will not be able to continue moving downwards. At this time, the spring can play a certain buffering role when the telescopic component moves the first drive component. The spring will be further compressed. The staff can observe the changes in the spring to confirm whether there is a severe bend or break inside the grouting pipe, so as to deal with the severe bend or break inside the grouting pipe in a timely manner.

[0013] In one specific implementation, the abutment is connected to a pressure sensor that abuts against the spring, the pressure sensor is communicatively connected to a logic controller, and the logic controller is communicatively connected to the telescopic assembly.

[0014] By adopting the above technical solution, the pressure sensor can easily detect the pressure generated by the spring deformation in a timely manner. If the grouting pipe is severely bent or broken, making it difficult for the first drive component to continue moving downward, the spring will be further compressed, thereby increasing the pressure of the spring on the pressure sensor. The pressure sensor transmits the pressure data to the logic controller in real time. After the logic controller determines that the pressure data is greater than the preset pressure threshold, it immediately controls the telescopic component to stop telescopicing, which facilitates subsequent staff to handle abnormal situations in a timely manner and prevent damage to the grouting pipe.

[0015] In one specific implementation, a rotating rod is connected to the mounting plate; a flat plate is connected to the telescopic assembly; a positioning seat is connected to the flat plate; a bearing is connected to the positioning seat; the bearing is connected to the rotating rod; and the rotating rod is connected to the second drive component.

[0016] By adopting the above technical solution, the connection stability between telescopic components can be increased through the swivel rod, positioning seat, bearing, and plate. Furthermore, the stability of the second drive component when driving the first drive component connected to the mounting plate can be increased through the swivel rod, positioning seat, and bearing.

[0017] In one specific implementation, the first slag suction assembly includes a first collection box connected to the first drive member, a first filter screen disposed in the first collection box, a first negative pressure pump connected to the first collection box, and a slag suction pipe connected to the first collection box; the first collection box is provided with a first transmission belt assembly, and a brush head slidably connected to the first filter screen is provided on the first transmission belt assembly.

[0018] By adopting the above technical solution, the first negative pressure pump can generate negative pressure in the first collection box and the slag suction pipe. Under the drive of the second drive component, the slag suction pipe is directed toward the opening of the grouting pipe. Under the drive of the telescopic component, the opening of the slag suction pipe is brought close to the opening of the grouting pipe. Then the first negative pressure pump is started, so that the slag in the grouting pipe can be adsorbed into the first collection box under the action of negative pressure. This helps to prevent the slag generated during the expansion of the grouting pipe from adversely affecting the screwing in of the hoisting screw.

[0019] In one specific implementation, a slag suction hopper is connected to the slag suction pipe, and the diameter of the slag suction hopper gradually widens in the direction away from the slag suction pipe; the first collection box is provided with an anti-backflow funnel connected to the slag suction pipe, and the diameter of the anti-backflow funnel gradually narrows in the direction away from the slag suction pipe.

[0020] By adopting the above technical solution, the slag suction hopper facilitates the introduction of slag sucked from the grouting pipe into the slag suction pipe, and the anti-tipping funnel facilitates the prevention of slag sucked into the first collection box from returning to the slag suction pipe under the action of gravity, thereby improving the collection effect of the first collection box.

[0021] In one specific implementation, the telescopic component is connected to a second collection box, the second collection box is connected to a second negative pressure pump, and the second collection box is connected to a ring bucket arranged around the outer edge of a preset grouting hole on the tunnel segment; the second collection box is provided with a second filter screen and a second transmission belt assembly, and the second transmission belt assembly is connected to a scraper that is slidably connected to the second filter screen.

[0022] By adopting the above technical solution, a negative pressure environment will be generated in both the second collection box and the ring hopper under the action of the second negative pressure pump. This makes it easier for the slag discharged through the slag discharge channel to enter the second collection box for collection under the action of negative pressure. This also makes it easier for the slag discharged through the slag discharge channel to remain near the grouting pipe, thereby preventing the slag from entering the grouting pipe and thus preventing the slag from adversely affecting the subsequent screwing in of the hoisting screws.

[0023] In one specific implementation, a pin hole is provided on the rotating shaft; a connecting seat is connected to the first driving component, and a pin passing through the pin hole is connected to the connecting seat.

[0024] By adopting the above technical solution, the first drive component and the rotating shaft can be detachably connected, which facilitates timely replacement of the threaded end mill on the rotating shaft when it is damaged, thus improving the convenience of replacement.

[0025] In one specific implementation, the spacing between adjacent threaded end mills is the same as the pitch of the lifting screw thread.

[0026] By adopting the above technical solution, it is convenient to mill a new thread that can be used to cooperate with the lifting screw on the inner wall of the grouting pipe using a thread milling cutter, so that the lifting screw can be properly inserted into the grouting pipe in the future.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] 1. Facilitates the screwing of the hoisting bolts into the corresponding grouting pipe without damaging the grouting pipe;

[0029] 2. It helps prevent slag in the grouting pipe from adversely affecting the screwing-in process of the hoisting bolts;

[0030] 3. It helps prevent damage to the grouting pipe. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure of a segment grouting pipe expansion device in an embodiment of this application.

[0032] Figure 2 This is a structural schematic diagram in the embodiments of this application used to illustrate the positional relationship between the telescopic component and the tunnel segment.

[0033] Figure 3 This is a structural diagram illustrating the connection relationship between the telescopic component and the transposition component in the embodiments of this application.

[0034] Figure 4 This is a structural schematic diagram illustrating the connection relationship between the transposition component and the hole expansion component in the embodiments of this application.

[0035] Figure 5 This is a structural schematic diagram illustrating the connection relationship between the limiting rod, the first driving component, the spring, the abutment, and the pressure sensor in the embodiments of this application.

[0036] Figure 6 This is a structural schematic diagram in the embodiments of this application used to illustrate the positional relationship between the telescopic component and the second slag suction component.

[0037] Figure 7 This is a structural schematic diagram illustrating the positional relationship between the second collection box, the second transmission belt assembly, and the scraper in the embodiments of this application.

[0038] Figure 8 This is a schematic diagram of the structure of the first slag suction component in the embodiments of this application.

[0039] Figure 9 This is a structural schematic diagram illustrating the positional relationship between the first collection box, the first transmission belt assembly, and the brush head in the embodiments of this application.

[0040] Explanation of reference numerals in the attached drawings: 1. Telescopic assembly; 11. Arc-shaped positioning plate; 12. Cylinder; 2. Positioning assembly; 21. Flat plate; 22. Second drive component; 23. Positioning seat; 24. Bearing; 25. Rotary rod; 26. Mounting plate; 261. Through hole; 3. Hole enlarging assembly; 31. Limiting rod; 32. First drive component; 33. Spring; 34. Abutment joint; 35. Pressure sensor; 36. Logic controller; 37. Connecting seat; 38. Pin; 39. Rotating shaft; 391. Slag discharge channel; 310. Screw 4. Thread milling cutter; 5. Second slag suction assembly; 6. Second collection box; 7. Second negative pressure pump; 8. Second filter screen; 9. Ring hopper; 10. Second transmission belt assembly; 11. Scraper; 12. First slag suction assembly; 13. First collection box; 14. First negative pressure pump; 15. First filter screen; 16. First transmission belt assembly; 17. Brush head; 18. Slag suction pipe; 19. Anti-tipping funnel; 20. Slag suction hopper; 21. Tunnel segment; 22. Segment hole; 33. Limiting groove hole; 44. Grouting hole; 55. Grouting pipe. Detailed Implementation

[0041] The following is in conjunction with the appendix Figure 1-9 This application will be described in further detail.

[0042] This application discloses a device for expanding the borehole of a segment grouting pipe. (Refer to...) Figure 1 The grouting pipe expansion device includes a telescopic component 1 for positioning on the tunnel segment 6, a repositioning component 2 connected to the telescopic component 1, and an expansion component 3 connected to the repositioning component 2. The expansion component 3 is used to mill threads in the grouting pipe 7 under the drive of the telescopic component 1 to cooperate with the preset lifting screw, thereby expanding the grouting pipe 7. The telescopic component 1 is provided with a second slag suction component 4, which is used to absorb the slag generated when expanding the grouting pipe 7. The expansion component 3 is connected to a first slag suction component 5. The repositioning component 2 is used to reposition the expansion component 3 and the first slag suction component 5 after the expansion component 3 completes the expansion of the grouting pipe 7. The first slag suction component 5 is used to absorb the slag left in the grouting pipe 7 during the expansion process.

[0043] Reference Figure 2 The tunnel segment 6 has countersunk holes 61 on its arc-shaped sidewall. The larger diameter portion of the hole 61 is referred to as the limiting slot 611, and the smaller diameter portion is referred to as the grouting hole 612. The telescopic assembly 1 includes an arc-shaped positioning plate 11 partially embedded in the limiting slot 611. The bottom wall of the arc-shaped positioning plate 11 is also connected to the arc-shaped top wall of the tunnel segment 6. The arc-shaped positioning plate 11 has a positioning plate hole, which is coaxial with the grouting hole 612 and has the same diameter. Two cylinders 12 are fixed on the arc-shaped positioning plate 11, which are radially distributed along a diameter of the positioning plate hole. The two cylinders 12 are symmetrically arranged along the central axis of the positioning plate hole, and both cylinders 12 are parallel to the central axis of the grouting hole 612.

[0044] In practice, the arc-shaped positioning plate 11 is first embedded in the limiting slot 611, which facilitates the limiting of the segment grouting pipe expansion device, thereby preventing the segment grouting pipe expansion device from sliding along the arc-shaped sidewall of the tunnel segment 6, thus improving the stability of the segment grouting pipe expansion device during use.

[0045] Reference Figure 3 Each cylinder 12 has a shifting component 2 at its top. Specifically, the shifting component 2 includes a flat plate 21 connected to the end of the cylinder 12 away from the arc-shaped positioning plate 11. The flat plate 21 is perpendicular to the extension and retraction direction of the cylinder 12. A second drive component 22 and a positioning seat 23 are fixed on the top wall of the flat plate 21. A bearing 24 coaxial with the output shaft of the second drive component 22 is connected to the positioning seat 23. A rotating rod 25 connected to the output shaft of the second drive component 22 is coaxially fixed on the inner ring of the bearing 24. The two rotating rods 25 are coaxially arranged and a mounting plate 26 is connected between the two rotating rods 25. In the initial state, the mounting plate 26 is placed in the horizontal direction. In this example, the second drive component 22 is specifically a rotary cylinder.

[0046] Reference Figure 4 and Figure 5 The enlarged hole assembly 3 includes four limiting rods 31 evenly distributed around the through hole 261 on the top wall of the mounting plate 26 shown in the figure. The four limiting rods 31 are slidably connected to a first drive member 32. In this example, the first drive member 32 is preferably a motor. In the initial state, the bottom end of the first drive member 32 abuts against the mounting plate 26. Taking one of the limiting rods 31 as an example, the limiting rod 31 is set perpendicular to the mounting plate 26 and extends upward through the first drive member 32. The part of the limiting rod 31 that extends through the first drive member 32 is fitted with a spring 33. The bottom end of the spring 33 abuts against the first drive member 32. The top end of the limiting rod 31 is fixed with an abutment 34. The bottom end of the abutment 34 is fixed with a pressure sensor 35 that abuts against the top end of the spring 33. The four pressure sensors 35 are communicatively connected to a logic controller 36 connected to the first drive member 32.

[0047] The mounting plate 26 has a through hole 261 that is coaxial with the grouting hole 612. The output shaft of the first drive component 32 passes through the through hole 261 and is connected to a coupling. The end of the coupling away from the first drive component 32 is connected to a U-shaped connecting seat 37. The connecting seat 37 has seat holes on both sides in the horizontal direction. A pin 38 passes through the seat holes. A rotating shaft 39 coaxial with the first drive component 32 is connected to the pin 38, and the rotating shaft 39 abuts against the bottom wall of the groove of the connecting seat 37. The end of the rotating shaft 39 near the connecting seat 37 has a pin hole for the pin 38 to pass through. A locking screw is threaded onto one end of the pin 38, which passes through the connecting seat 37 and the rotating shaft 39. A number of threaded end mills 310 are coaxially connected to the end of the rotating shaft 39 away from the pin 38. The diameter of the threaded end mills 310 is larger than the inner diameter of the grouting pipe 7. The threaded end mills 310 are evenly distributed along the axial direction of the rotating shaft 39, and the spacing between adjacent threaded end mills 310 is the same as the pitch of the lifting screw thread. This facilitates milling internal threads on the inner wall of the grouting pipe 7 to cooperate with the lifting screw. The threaded end mills 310 and the rotating shaft 39 are provided together with a slag discharge groove 391 along the length of the rotating shaft 39.

[0048] In implementation, the second drive component 22 drives the mounting plate 26, thereby making the output shaft of the first drive component 32 connected to the mounting plate 26 coaxial with the grouting hole 612, and thus making the rotating shaft 39 coaxial with the grouting hole 612. At this time, several threaded end mills 310 connected to the bottom end of the rotating shaft 39 are directly above the grouting hole 612. Further, the first drive component 32 drives the rotating shaft 39, thereby making several threaded end mills 310 rotate. At the same time, the control cylinder 12 retracts downward, thereby making the threaded end mills 310 gradually approach the opening of the grouting hole 612. After the thread end mill 310 contacts the grouting pipe 7, it begins to mill the inner wall of the grouting pipe 7 in a rotating manner. At the same time, driven by the cylinder 12, the thread end mill 310 also gradually penetrates into the bottom end of the grouting hole 612. During this process, the thread end mill 310 can mill an internal thread on the inner wall of the grouting pipe 7 that is compatible with the thread of the lifting screw, and at the same time widen the inner diameter of the grouting pipe 7, thus realizing the enlargement of the grouting pipe 7. It should be noted that during the milling process of the thread end mill 310 on the grouting pipe 7, slag will be generated, and the generated slag will be discharged upward from the slag discharge groove 391.

[0049] It should be noted that under the squeezing action of the tunnel segment 6, the grouting pipe 7 may be bent or broken inside before the hole is enlarged. If the grouting pipe 7 is bent or broken, it will cause great resistance to the extension process of the rotating shaft 39. If the telescopic component 1 still forcibly drives the rotating shaft 39 to extend in at this time, it will not only further damage the grouting pipe 7, but also damage the rotating shaft 39 and the threaded end mill 310 on the rotating shaft 39.

[0050] It should be added that if the grouting pipe 7 is in normal condition, the rotating shaft 39 can descend normally and extend into the grouting pipe 7 under the drive of the telescopic component 1, and at this time the pressure data measured by the pressure sensor 35 is within the preset pressure threshold range.

[0051] To prevent damage to the grouting pipe 7, the rotating shaft 39, and the threaded milling cutter 310, if the rotating shaft 39 suddenly becomes difficult to extend further into the grouting pipe 7, it will transmit the upward resistance sequentially through the pin 38, the connecting seat 37, and the coupling to the first drive component 32, causing the first drive component 32 to move further upward. During this further upward movement, the first drive component 32 will further compress the spring 33, causing the pressure sensor 35 to measure pressure data exceeding the pressure threshold range. During the insertion of the rotating shaft 39 into the grouting pipe 7, the pressure sensor 35 acquires pressure data at a preset frequency and transmits the pressure data to the logic controller 36. The logic controller 36 determines whether the average value of the received pressure data exceeds the preset pressure threshold range. If so, it indicates that the descent of the rotating shaft 39 is obstructed, possibly due to bending or breakage during grouting. In this case, the logic controller 36 immediately controls the telescopic assembly 1 to stop retracting, thus allowing time for the staff to investigate. The use of spring 33 also serves as a buffer to prevent the shaft rod 39 from descending further when it is obstructed, thus preventing the shaft rod 39 from continuing to descend without being driven by the telescopic assembly, thereby protecting the shaft rod 39 and the threaded end mill 310.

[0052] To prevent the slag discharged from the slag discharge channel 391 from accumulating at the opening of the grouting pipe 7, and to allow the slag to enter the grouting pipe 7 after the rotating shaft 39 is pulled out of the grouting hole 612, the slag is absorbed and treated by the second slag suction component 4 when it is discharged from the slag discharge channel 391.

[0053] Specifically, refer to Figure 6 and Figure 7 The second slag suction assembly 4 includes a second collection box 41 connected to the arc-shaped positioning plate 11. A second negative pressure pump 42 connected to the second collection box 41 via a first pipe is fixed on the top wall of the second collection box 41. A second filter screen 43 covering the opening of the first pipe is connected in the second collection box 41. The second collection box 41 is also connected to an annular hopper 44 via a second pipe. The annular hopper 44 is circular and is arranged around the outer edge of the grouting hole 612. The opening of the annular hopper 44 faces and is close to the opening of the grouting pipe 7.

[0054] In order to prevent slag from accumulating at the second filter screen 43 and affecting the collection of slag, the second collection box 41 is also provided with a second transmission belt assembly 45, and a scraper 46 that is slidably connected to the second filter screen 43 is connected to the second transmission belt assembly 45.

[0055] During implementation, as the slag is discharged from the slag discharge trough 391, the second negative pressure pump 42 is also started simultaneously. The second negative pressure pump 42 puts the second collection box 41 and the ring hopper 44 under negative pressure. In this way, the discharged slag will first enter the ring hopper 44 under the action of negative pressure, and then enter the second collection box 41 through the first pipe. Under the action of the second filter screen 43, the slag can be retained in the second collection box 41. In order to prevent the slag from accumulating on the second filter screen 43 and thus clogging the second filter screen 43, the second transmission belt assembly 45 is also started simultaneously when the second negative pressure pump 42 is started. This makes it easier to scrape off the slag adhering to the second filter screen 43.

[0056] It should be noted that during the process of the rotating shaft 39 driving the threaded milling cutter 310 to expand the hole in the grouting pipe 7, slag will be generated. Part of the slag will be discharged upward through the slag discharge groove 391, and the other part will fall into the bottom of the grouting pipe 7. The first slag suction component 5 can easily suck out and collect the slag that falls into the bottom of the grouting pipe 7.

[0057] Specifically, refer to Figure 8 and Figure 9 The first slag suction assembly 5 includes a base plate fixed to the top of the first drive member 32 shown in the figure. A first collection box 51 is fixed on the base plate, and a first negative pressure pump 52 is connected to the first collection box 51 through a third pipe. A first filter screen 53 is provided at the position where the first collection box 51 is connected to the pipe, and a first transmission belt assembly 54 is also provided in the first collection box 51 near the first filter screen 53. A brush head 55 is connected to the first transmission belt assembly 54 and slidably connected to the first filter screen 53. A slag suction pipe 56 is fixed to the top wall of the first collection box 51. An anti-tipping funnel 57 is provided at the connection between the first collection box 51 and the slag suction pipe 56. The diameter of the anti-tipping funnel 57 gradually narrows away from the slag suction pipe 56. A slag suction hopper 58 is fixed to the top of the slag suction pipe 56. The diameter of the slag suction hopper 58 gradually widens away from the slag suction pipe 56, and the outer diameter of the slag suction hopper 58 is the same as the outer diameter of the grouting pipe 7, so that the slag suction hopper 58 can cover the top of the grouting pipe 7.

[0058] In practice, after the grouting pipe 7 is enlarged by the threaded milling cutter 310, the telescopic component 1 drives the rotating shaft 39 to move upward and is pulled out of the grouting pipe 7. Then, the second drive component is controlled to drive the mounting plate 26 until the slag suction hopper 58 is coaxial with the grouting pipe 7. At this time, the position of the enlargement component 3 and the first slag suction component 5 is changed by the second drive component. Furthermore, the telescopic component 1 drives the slag suction component to descend until the first slag suction pipe 56 covers the top of the grouting pipe 7; then, the first negative pressure pump 52 and the first transmission belt assembly 54 are started simultaneously. The first negative pressure pump 52 creates a negative pressure environment in the first collection box 51, the slag suction pipe 56, and the slag suction hopper 58. At this time, under the action of negative pressure, the slag material stuck at the bottom of the grouting pipe 7 is sucked into the first collection box 51. Under the action of the anti-tipping funnel 57, the slag material sucked into the first collection box 51 is difficult to fall back into the grouting pipe 7. And because the slag suction hopper 58 covers the top of the grouting pipe 7, the slag material is also difficult to escape from the connection between the slag suction hopper 58 and the grouting pipe 7. In addition, during the operation, the first transmission belt assembly 54 drives the brush head 55 to brush off the slag material attached to the first filter screen 53. This helps to prevent the slag material from clogging the first filter screen 53, thereby helping to maintain the negative pressure environment in the first collection box 51 and thus improving the slag material collection effect.

[0059] After enlarging the grouting pipe and collecting the generated slag, tighten the pre-set hoisting screws into the corresponding grouting pipes, and then hoist the tunnel segments by moving the hoisting screws.

[0060] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A pipe patch grouting pipe reaming device, characterized by: Including telescopic assembly (1), the telescopic assembly (1) is connected with first drive rotating part (32), the first drive rotating part (32) is connected with rotating shaft rod (39), the rotating shaft rod (39) is connected with screw thread milling cutter (310), the screw thread milling cutter (310) is set with slag guide groove (391) with the rotating shaft rod (39) on together; The telescopic assembly (1) is connected with second drive rotating part (22), the second drive rotating part (22) is connected with the first drive rotating part (32), and the first drive rotating part (32) is provided with first slag suction assembly (5); The telescopic assembly (1) is connected with mounting plate (26), the mounting plate (26) is connected with at least two limit rods (31), the limit rod (31) is slidably connected with the first drive rotating part (32), the limit rod (31) is provided with spring (33) abutting against the first drive rotating part (32), and the limit rod (31) is connected with abutting head (34) abutting against the spring (33); The mounting plate (26) is connected with rotating rod (25), the telescopic assembly (1) is connected with flat plate (21), the flat plate (21) is connected with positioning seat (23), the positioning seat (23) is connected with bearing (24), the bearing (24) is connected with the rotating rod (25), and the rotating rod (25) is connected with the second drive rotating part (22); The first slag suction assembly (5) includes base plate fixed on the top of the first drive rotating part (32), and the base plate is fixed with first collection box (51), and the position of the screw thread milling cutter (310) and the first slag suction assembly (5) is exchanged by the second drive rotating part (22).

2. The pipe patch grouting pipe reamer of claim 1, wherein: The abutting head (34) is connected with pressure sensor (35) abutting against the spring (33), the pressure sensor (35) is connected with logic controller (36) in communication, and the logic controller (36) is connected with the telescopic assembly (1) in communication.

3. The pipe patch grouting pipe reamer of claim 1, wherein: First collection box (51) is provided with first filter screen (53), first collection box (51) is connected with first negative pressure pump (52), and first collection box (51) is connected with slag suction pipe (56), first collection box (51) is provided with first transmission belt assembly (54), and first transmission belt assembly (54) is provided with brush head (55) slidably connected with first filter screen (53).

4. The pipe patch grouting pipe reamer of claim 3, wherein: The slag suction pipe (56) is connected with slag suction hopper (58), the diameter of the slag suction hopper (58) gradually widens along the direction away from the slag suction pipe (56), and the first collection box (51) is provided with anti-inverted funnel (57) connected with the slag suction pipe (56), and the diameter of the anti-inverted funnel (57) gradually narrows along the direction away from the slag suction pipe (56).

5. The pipe patch grouting pipe reamer of claim 1, wherein: The telescopic assembly (1) is connected with a second collecting box (41), the second collecting box (41) is connected with a second negative pressure pump (42), and the second collecting box (41) is connected with a ring bucket (44) arranged around the outer edge of the preset grouting hole (612) of the tunnel segment (6).

6. The pipe patch grouting pipe reamer of claim 1, wherein: The rotating shaft rod (39) is provided with a pin hole; the first driving part (32) is connected with a connecting seat (37), and the connecting seat (37) is connected with a pin (38) penetrating through the pin hole.

7. The pipe patch grouting pipe reamer of claim 1, wherein: The interval between adjacent screw milling cutters (310) is the same as the pitch of the lifting screw thread.

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