Grouting pipe automatic propelling device for deep hole grouting

Abstract

The invention relates to the technical field of deep hole grouting, in particular to an automatic grouting pipe propelling device for deep hole grouting. According to the automatic grouting pipe propelling device for deep hole grouting, the grouting pipe can automatically move in a drilled hole so that multi-section grouting can be conveniently conducted on the drilled hole, meanwhile, the grouting pipe can be automatically pushed out of the drilled hole after grouting is completed, and the grouting compactness is ensured. An automatic grouting pipe propelling device for deep hole grouting comprises a connecting pipe, a rotating pipe and the like, and the left side of the connecting pipe is rotationally connected with the rotating pipe. Moving wheels make contact with the inner wall of a drill hole, a sliding frame is kept at the relative position through the acting force of a first spring, the moving wheels make contact with the inner wall of the drill hole all the time, then a first motor is started, the moving wheels are driven to rotate, a connecting pipe moves in the drill hole, and the grouting pipe can automatically move in the drill hole; therefore, the effect of multi-section grouting on the drilled hole is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of deep hole grouting, and in particular to an automatic propelling device for a grouting pipe used for deep hole grouting. Background Art

[0002] Deep hole grouting is a commonly used geological engineering technology, widely used in many fields such as mines, tunnels, bridges, and building foundation reinforcement. Its main purpose is to inject slurry into holes deep underground to achieve multiple purposes such as strengthening the stratum, preventing leakage, and improving structural stability. When performing deep hole grouting, a grouting pipe is required.

[0003] When performing deep hole grouting, the existing grouting pipe is usually pushed into the borehole by the staff, moved to the designated position for grouting, and taken out from the borehole after the grouting is completed. However, since the staff pushes the grouting pipe to move in the borehole, it is more laborious and difficult to accurately control the position of the grouting pipe, which may result in uneven grouting. In addition, when the staff takes out the grouting pipe, it is difficult to judge the density of the grouting in the borehole, which may result in incomplete grouting and affect the quality of deep hole grouting construction.

[0004] Therefore, a grouting pipe automatic propulsion device for deep hole grouting has been developed which can automatically move the grouting pipe in the borehole to facilitate multi-stage grouting of the borehole, and can automatically push the grouting pipe out of the borehole after the grouting is completed to ensure the grouting density. Summary of the invention

[0005] In order to overcome the shortcomings that it is laborious for workers to push the grouting pipe to move in the borehole, it is difficult to accurately control the position of the grouting pipe, which may lead to uneven grouting, and it is difficult for workers to judge the density of the grouting in the borehole when taking out the grouting pipe, which may lead to incomplete grouting and affect the quality of deep hole grouting construction. The present invention provides a grouting pipe automatic propulsion device for deep hole grouting, which can enable the grouting pipe to automatically move in the borehole to facilitate multi-stage grouting of the borehole, and can automatically push the grouting pipe out of the borehole after grouting is completed to ensure the density of grouting.

[0006] A grouting pipe automatic propulsion device for deep hole grouting includes a connecting pipe, a rotating pipe, a grouting pipe, a propulsion mechanism and a sealing mechanism. The left side of the connecting pipe is rotatably connected to the rotating pipe, the left side of the rotating pipe is connected to the grouting pipe, the connecting pipe is provided with a propulsion mechanism that can automatically move in the borehole, and the rotating pipe is provided with a sealing mechanism that can seal the borehole.

[0007] Further description: the connecting pipe is provided with threads.

[0008] It is further explained that a plurality of grouting holes are provided on the grouting pipe.

[0009] Further description, the propulsion mechanism includes a support block, a rotating plate, a moving wheel, a sliding frame, a swing rod, a first motor, a fixed seat, a first telescopic rod and a first spring, the left and right parts of the connecting tube are connected to multiple support blocks, the support blocks are rotatably connected to the rotating plates, the rotating plates are rotatably connected to the moving wheels, the middle part of the connecting tube is slidably connected to the left and right sliding frames, the sliding frames are rotatably connected to multiple swing rods, the swing rods are rotatably connected to the adjacent rotating plates, the upper parts of the rotating plates are connected to the first motor, the output shafts of the first motor are connected to the adjacent moving wheels, the left and right parts of the connecting tube are connected to multiple fixed seats, and the fixed seats are located Between two adjacent support blocks, a first telescopic rod is connected to the fixed seat, and the telescopic ends of the first telescopic rod are connected to adjacent sliding frames. A first spring is connected between the first telescopic rod and the connected sliding frames. The connecting pipe is placed in the borehole that needs grouting, and the moving wheel contacts the inner wall of the borehole. At this time, the swing arm rotates downward, the rotating plate rotates, and the sliding frames are pushed closer to each other. The sliding frames are kept in relative positions through the action of the first telescopic rod and the first spring, so that the moving wheel is always in contact with the inner wall of the borehole, and then the first motor is started to drive the moving wheel to rotate, so that the connecting pipe moves in the borehole again, and the grouting pipe is pushed to the designated position for grouting.

[0010] Further description: the moving wheels are provided with anti-skid grooves.

[0011] To further explain, the sealing mechanism includes a connecting seat, an air pump, an air guide tube and an expansion air bag. The connecting seat is rotatably connected to the outer side of the rotating tube. Multiple air pumps are connected to the outer side of the right part of the connecting seat. The air pumps are all connected to air guide tubes. The outer side of the middle part of the connecting seat is connected to the expansion air bag. The air guide tubes are all connected to the expansion air bag. When the grouting pipe starts grouting deep in the borehole, the air pump is started to ventilate the air guide tube into the expansion air bag, so that the expansion air bag expands and contacts the inner wall of the borehole. When the grouting in the borehole is complete, the pressure in the borehole increases, pushing the expansion air bag outward, causing the connecting pipe to move outward.

[0012] Further description, it also includes a rotating mechanism, which includes a support base, a second motor, a spur gear and a ring gear. The support base is connected to the upper left side of the connecting pipe, the support base is connected to the second motor, the spur gear is connected to the output shaft of the second motor, and the ring gear is connected to the outer right side of the rotating pipe. The ring gear is meshed with the spur gear. Starting the second motor on the support base drives the spur gear to rotate and mesh with the ring gear, so that the rotating pipe rotates, driving the grouting pipe to rotate.

[0013] Further description, it also includes an isolation mechanism, the isolation mechanism includes a guide frame, a space cam, a second spring, an isolation frame and a push rod, a plurality of guide frames are connected to the left part of the rotating tube, the space cams are slidably connected between the guide frames, an inclined groove is opened on the space cam, a second spring is connected between the guide frames and the space cam, a plurality of isolation frames are slidably connected to the grouting pipe, the space cam is slidably connected to the isolation frame through the inclined groove, a plurality of push rods are connected to the right side of the space cam, the push rods are squeezed and cooperated with the expansion airbag, when the expansion airbag expands, the squeeze push rod moves to the left, so that the space cam moves to the left along the guide frame, the second spring is squeezed and contracted, and at this time the space cam triggers the isolation frame to move away from the grouting hole on the grouting pipe.

[0014] Further explanation, it also includes an auxiliary mechanism, which includes a guide rod, a push plate, an extension plate and a third spring. A plurality of guide rods are connected to the left part of the connecting seat, and push plates are slidably connected between the guide rods. A plurality of extension plates are clamped on the push plate, and a third spring is connected between the guide rods and the push plates. According to the size of the borehole, an extension plate of a corresponding shape is installed on the push plate. When the connecting pipe enters the borehole, the extension plate contacts the inner wall of the borehole. When the pressure in the borehole increases, the push plate is pushed to move, so that the push plate contacts the expansion airbag, and the third spring is squeezed and contracted.

[0015] Further description, it also includes a guiding mechanism, which includes a second telescopic rod, a fourth spring and a guide plate. Multiple groups of second telescopic rods are connected to the middle of the connecting tube, each group is composed of two second telescopic rods, and a guide plate is connected between the telescopic ends of the two second telescopic rods in the same group. The fourth spring is connected between the guide plate and the connected second telescopic rod. When the connecting tube enters the drill hole, the force of the fourth spring ensures that the guide plate on the second telescopic rod is always close to the inner wall of the drill hole.

[0016] The beneficial effects are as follows: 1. The present invention contacts the inner wall of the borehole through the moving wheel, and the sliding frame is kept in a relative position through the action force of the first spring, so that the moving wheel is always in contact with the inner wall of the borehole, and then the first motor is started to drive the moving wheel to rotate, so that the connecting pipe moves in the borehole, thereby achieving the effect of enabling the grouting pipe to automatically move in the borehole, so as to facilitate multi-stage grouting of the borehole.

[0017] 2. When the present invention starts grouting at a depth of a borehole through a grouting pipe, the air pump is started to ventilate the air guide pipe into the expansion airbag, causing the expansion airbag to expand and contact the inner wall of the borehole. When the borehole is completely grouted, the pressure in the borehole increases, pushing the expansion airbag outward, causing the connecting pipe to move outward, thereby achieving the effect of automatically pushing the grouting pipe out of the borehole after the grouting is completed, thereby ensuring the density of the grouting.

[0018] 3. The present invention starts the second motor on the support seat to drive the spur gear to rotate and mesh with the gear ring, so that the rotating tube rotates and drives the grouting tube to rotate, thereby achieving the effect of being able to adjust the grouting direction of the grouting holes on the grouting tube to adapt to different drilling crack conditions.

[0019] 4. When the inflatable airbag is inflated, the extrusion push rod moves to the left, causing the space cam to move to the left along the guide frame, and the second spring is squeezed and contracted. At this time, the space cam triggers the isolation frame to move away from the grouting hole on the grouting pipe, thereby achieving the effect of blocking the grouting hole on the grouting pipe and avoiding blockage of the grouting hole.

[0020] 5. The present invention installs an extension plate of a corresponding shape on the push plate according to the size of the drill hole. When the connecting tube enters the drill hole, the extension plate contacts the inner wall of the drill hole. When the pressure in the drill hole increases, the push plate is pushed to move, so that the push plate contacts the expansion airbag, and the third spring is squeezed and contracted, so that the pressure can be evenly distributed on the expansion airbag, which facilitates the connection tube to be moved out of the drill hole.

[0021] 6. When the connecting tube of the present invention enters the borehole, the guide plate on the second telescopic rod is always in close contact with the inner wall of the borehole through the action of the fourth spring, thereby achieving the effect of guiding the connecting tube and preventing the connecting tube from rotating. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0023] Figure 2 It is a partial three-dimensional structural schematic diagram of the present invention.

[0024] Figure 3 It is a schematic diagram of the three-dimensional structure of the first part of the propulsion mechanism of the present invention.

[0025] Figure 4 It is a schematic diagram of the three-dimensional structure of the second part of the propulsion mechanism of the present invention.

[0026] Figure 5 It is a partial three-dimensional structural schematic diagram of the sealing mechanism of the present invention.

[0027] Figure 6 It is a schematic diagram of the three-dimensional structure of the rotating mechanism of the present invention.

[0028] Figure 7 It is a partial three-dimensional structural schematic diagram of the isolation mechanism of the present invention.

[0029] Figure 8 It is a schematic diagram of the three-dimensional structure of the auxiliary mechanism part of the present invention.

[0030] Fig. 9 It is a schematic diagram of the three-dimensional structure of the guide mechanism part of the present invention.

[0031] Markings in the accompanying drawings: 1: connecting pipe, 2: rotating pipe, 3: grouting pipe, 4: propulsion mechanism, 41: support block, 42: rotating plate, 43: moving wheel, 44: sliding frame, 45: rocker arm, 46: first motor, 47: fixed seat, 48: first telescopic rod, 49: first spring, 5: sealing mechanism, 51: connecting seat, 52: air pump, 53: air guide tube, 54: expansion airbag, 6: rotating mechanism, 61: supporting seat, 62: second motor, 63: spur gear, 64: ring gear, 7: isolation mechanism, 71: guide frame, 72: space cam, 73: second spring, 74: isolation frame, 75: push rod, 8: auxiliary mechanism, 81: guide rod, 82: push plate, 83: extension plate, 84: third spring, 9: guide mechanism, 91: second telescopic rod, 92: fourth spring, 93: guide plate. DETAILED DESCRIPTION

[0032] The preferred technical solutions of the present invention are described in detail below with reference to the accompanying drawings.

[0033] A grouting pipe automatic propulsion device for deep hole grouting, such as Figure 1 and Figure 2 As shown, it includes a connecting pipe 1, a rotating pipe 2, a grouting pipe 3, a propulsion mechanism 4 and a sealing mechanism 5. The connecting pipe 1 is rotatably connected to the rotating pipe 2 on the left side. The connecting pipe 1 is provided with a thread for easy docking. The rotating pipe 2 is connected to the grouting pipe 3 on the left side. The grouting pipe 3 is provided with a plurality of grouting holes for easy grouting. The connecting pipe 1 is provided with a propulsion mechanism 4, and the rotating pipe 2 is provided with a sealing mechanism 5.

[0034] like Figure 1 , Figure 3 and Figure 4 As shown, the propulsion mechanism 4 includes a support block 41, a rotating plate 42, a moving wheel 43, a sliding frame 44, a swing rod 45, a first motor 46, a fixing seat 47, a first telescopic rod 48 and a first spring 49. The left and right parts of the connecting pipe 1 are connected to four support blocks 41, and the support blocks 41 are rotatably connected to the rotating plates 42, and the rotating plates 42 are rotatably connected to the moving wheels 43. The moving wheels 43 are provided with anti-skid patterns to improve the movement stability. The middle part of the connecting pipe 1 is slidably connected to the left and right sliding frames 44, and the sliding frames 44 are rotatably connected to the left and right sliding frames 44. Four rocker arms 45 are connected, and the rocker arms 45 are rotatably connected to the adjacent rotating plates 42. The upper part of the rotating plates 42 is connected to a first motor 46, and the output shaft of the first motor 46 is connected to the adjacent moving wheel 43. The left and right parts of the connecting tube 1 are connected to two fixed seats 47, and the fixed seats 47 are located between two adjacent support blocks 41. The fixed seats 47 are connected to a first telescopic rod 48, and the telescopic ends of the first telescopic rod 48 are connected to the adjacent sliding frames 44. A first spring 49 is connected between the first telescopic rod 48 and the connected sliding frames 44.

[0035] like Figure 1 and Figure 5 As shown, the sealing mechanism 5 includes a connecting seat 51, an air pump 52, an air guide tube 53 and an inflation air bag 54. The connecting seat 51 is rotatably connected to the outer side of the rotating tube 2. Four air pumps 52 are connected to the outer side of the right part of the connecting seat 51. The air pumps 52 are all connected to air guide tubes 53. The expansion air bag 54 is connected to the outer side of the middle part of the connecting seat 51, and the air guide tubes 53 are all connected to the inflation air bag 54.

[0036] When using the present invention, first connect the connecting pipe 1 to the grouting machine, then place the connecting pipe 1 in the borehole that needs grouting, and the moving wheel 43 contacts the inner wall of the borehole. At this time, the rocker arm 45 rotates downward, the rotating plate 42 rotates, and the sliding frames 44 are pushed to approach each other. The sliding frames 44 are kept in relative positions through the action of the first telescopic rod 48 and the first spring 49, so that the moving wheel 43 is always in contact with the inner wall of the borehole, and then the first motor 46 is started to drive the moving wheel 43 to rotate, so that the connecting pipe 1 moves in the borehole, and the grouting pipe 3 is pushed to the specified position for grouting, thereby enabling the grouting pipe 3 to automatically move in the borehole to facilitate multi-stage grouting of the borehole. When the grouting pipe 3 starts grouting deep in the borehole, the air pump 52 is started to ventilate the air guide tube 53 into the expansion airbag 54, causing the expansion airbag 54 to expand and contact the inner wall of the borehole. When the borehole is completely grouted, the pressure in the borehole increases, pushing the expansion airbag 54 outward, causing the connecting pipe 1 to move outward, thereby automatically pushing the grouting pipe 3 out of the borehole after the grouting is completed, thereby ensuring the density of the grouting.

[0037] like Figure 1 and Figure 6 As shown, it also includes a rotating mechanism 6, which includes a support base 61, a second motor 62, a spur gear 63 and a ring gear 64. The support base 61 is connected to the upper left side of the connecting tube 1, the second motor 62 is connected to the support base 61, the spur gear 63 is connected to the output shaft of the second motor 62, and the ring gear 64 is connected to the outer side of the right part of the rotating tube 2, and the ring gear 64 is meshed with the spur gear 63.

[0038] By using the rotating mechanism 6 of the device, the grouting pipe 3 can be rotated, and the second motor 62 on the support seat 61 can be started to drive the spur gear 63 to rotate and mesh with the ring gear 64, so that the rotating tube 2 rotates, driving the grouting pipe 3 to rotate, thereby adjusting the grouting direction of the grouting holes on the grouting pipe 3 to adapt to different drilling crack conditions.

[0039] like Figure 1 and Figure 7As shown, an isolation mechanism 7 is also included, and the isolation mechanism 7 includes a guide frame 71, a space cam 72, a second spring 73, an isolation frame 74 and a push rod 75. Four guide frames 71 are connected to the left part of the rotating tube 2, and the space cams 72 are slidably connected between the guide frames 71. The space cams 72 are provided with inclined grooves, and the second spring 73 is connected between the guide frames 71 and the space cams 72. Four isolation frames 74 are slidably connected to the grouting pipe 3, and the space cams 72 are slidably connected to the isolation frames 74 through the inclined grooves. Four push rods 75 are connected to the right side of the space cam 72, and the push rods 75 are squeezed and matched with the expansion airbag 54.

[0040] The isolation mechanism 7 of the device can be used to close the grouting pipe 3. When the expansion bag 54 is inflated, the extrusion push rod 75 moves to the left, causing the space cam 72 to move to the left along the guide frame 71, and the second spring 73 is squeezed and contracted. At this time, the space cam 72 triggers the isolation frame 74 to move away from the grouting holes on the grouting pipe 3, thereby blocking the grouting holes on the grouting pipe 3 and avoiding blockage of the grouting holes. After the expansion bag 54 is inflated and recovered, the second spring 73 rebounds, causing the space cam 72 and the push rod 75 to reset, thereby causing the isolation frame 74 to reset and block the grouting holes on the grouting pipe 3.

[0041] like Figure 1 and Figure 8 As shown, an auxiliary mechanism 8 is also included, and the auxiliary mechanism 8 includes a guide rod 81, a push plate 82, an extension plate 83 and a third spring 84. Four guide rods 81 are connected to the left part of the connecting seat 51, and push plates 82 are slidably connected between the guide rods 81. Four extension plates 83 are clamped on the push plates 82, and a third spring 84 is connected between the guide rods 81 and the push plates 82.

[0042] The auxiliary mechanism 8 of the device can be used to assist the connecting tube 1 in moving out of the borehole. According to the size of the borehole, an extension plate 83 of a corresponding shape is installed on the push plate 82. When the connecting tube 1 enters the borehole, the extension plate 83 contacts the inner wall of the borehole. When the pressure in the borehole increases, the push plate 82 is pushed to move, so that the push plate 82 contacts the expansion airbag 54. The third spring 84 is squeezed and contracted, thereby playing a role in evenly distributing the pressure on the expansion airbag 54, making it easier to move the connecting tube 1 out of the borehole. After the pressure in the borehole is restored, the third spring 84 rebounds, so that the push plate 82 is reset.

[0043] like Figure 1 and Fig. 9As shown, a guide mechanism 9 is also included, and the guide mechanism 9 includes a second telescopic rod 91, a fourth spring 92 and a guide plate 93. Four groups of second telescopic rods 91 are connected to the middle of the connecting tube 1, and each group is composed of two second telescopic rods 91. A guide plate 93 is connected between the telescopic ends of the two second telescopic rods 91 in the same group, and a fourth spring 92 is connected between the guide plate 93 and the second telescopic rod 91 connected thereto.

[0044] The guide mechanism 9 of the device can be used to guide the connecting pipe 1. When the connecting pipe 1 enters the drill hole, the force of the fourth spring 92 ensures that the guide plate 93 on the second telescopic rod 91 is always in close contact with the inner wall of the drill hole, thereby guiding the connecting pipe 1 and preventing the connecting pipe 1 from rotating.

[0045] Although the present disclosure has been described with respect to only a limited number of embodiments, those skilled in the art having benefit of this disclosure will appreciate that various other embodiments can be devised without departing from the scope of the present invention. Accordingly, the scope of the present invention should be limited only by the appended claims.

Claims

1. An automatic propulsion device for a grouting pipe for deep hole grouting, characterized in that: The invention comprises a connecting pipe (1), a rotating pipe (2), a grouting pipe (3), a propulsion mechanism (4) and a sealing mechanism (5); the left side of the connecting pipe (1) is rotatably connected to the rotating pipe (2); the left side of the rotating pipe (2) is connected to the grouting pipe (3); the connecting pipe (1) is provided with a propulsion mechanism (4) capable of automatically moving in a borehole; and the rotating pipe (2) is provided with a sealing mechanism (5) capable of sealing the borehole.

2. The automatic propulsion device for a grouting pipe for deep hole grouting according to claim 1 is characterized in that: The connecting pipe (1) is provided with threads.

3. The automatic propulsion device for a grouting pipe for deep hole grouting according to claim 1 is characterized in that: A plurality of grouting holes are provided on the grouting pipe (3).

4. The automatic grouting pipe advancing device for deep hole grouting according to claim 1 is characterized in that: The propulsion mechanism (4) comprises a support block (41), a rotating plate (42), a moving wheel (43), a sliding frame (44), a swing rod (45), a first motor (46), a fixed seat (47), a first telescopic rod (48) and a first spring (49). The left and right parts of the connecting tube (1) are both connected to a plurality of support blocks (41). The support blocks (41) are both rotatably connected to a rotating plate (42). The rotating plates (42) are both rotatably connected to the moving wheels (43). The middle part of the connecting tube (1) is slidably connected to the left and right sliding frames (44). The sliding frames (44) are both rotatably connected to a plurality of swing rods (45). The swing rods (45) are all rotatably connected to the adjacent rotating plates (42). The upper part of the rotating plates (42) is connected to the first motor (46). The output shaft of the first motor (46) is connected to the adjacent moving wheels (43). The left and right parts of the connecting tube (1) are both connected to the plurality of fixed seats (46). 7), the fixed seats (47) are located between two adjacent support blocks (41), the fixed seats (47) are connected with first telescopic rods (48), the telescopic ends of the first telescopic rods (48) are connected with adjacent sliding frames (44), and the first springs (49) are connected between the first telescopic rods (48) and the connected sliding frames (44). The connecting pipe (1) is placed in the borehole to be grouted, and the moving wheel (43) contacts the inner wall of the borehole. At this time, the swing rod (45) rotates downward, the rotating plate (42) rotates, and the sliding frames (44) are pushed to approach each other. The sliding frames (44) are kept in relative positions by the action of the first telescopic rod (48) and the first spring (49), so that the moving wheel (43) is always in contact with the inner wall of the borehole. Then the first motor (46) is started to drive the moving wheel (43) to rotate, so that the connecting pipe (1) moves in the borehole again, and the grouting pipe (3) is pushed to the designated position for grouting.

5. The automatic propulsion device for a grouting pipe for deep hole grouting according to claim 4 is characterized in that: The moving wheels (43) are all provided with anti-skid patterns.

6. The automatic grouting pipe advancing device for deep hole grouting according to claim 4 is characterized in that: The sealing mechanism (5) comprises a connecting seat (51), an air pump (52), an air guide tube (53) and an expansion air bag (54). The outer side of the rotating tube (2) is rotatably connected to the connecting seat (51). The right outer side of the connecting seat (51) is connected to a plurality of air pumps (52). The air pumps (52) are all connected to the air guide tubes (53). The middle outer side of the connecting seat (51) is connected to the expansion air bag (54). The air guide tubes (53) are all connected to the expansion air bag (54). When the grouting pipe (3) starts grouting at the depth of the borehole, the air pump (52) is started to ventilate the air guide tube (53) into the expansion air bag (54), so that the expansion air bag (54) expands and contacts the inner wall of the borehole. When the grouting in the borehole is complete, the pressure in the borehole increases, pushing the expansion air bag (54) to move outward, so that the connecting pipe (1) moves outward.

7. The automatic grouting pipe advancing device for deep hole grouting according to claim 6 is characterized by: The invention also comprises a rotating mechanism (6), which comprises a support seat (61), a second motor (62), a spur gear (63) and a gear ring (64). The upper left side of the connecting pipe (1) is connected to the support seat (61), the second motor (62) is connected to the support seat (61), the output shaft of the second motor (62) is connected to the spur gear (63), the outer right side of the rotating pipe (2) is connected to the gear ring (64), the gear ring (64) is meshed with the spur gear (63), and the second motor (62) on the support seat (61) is started to drive the spur gear (63) to rotate and mesh with the gear ring (64), so that the rotating pipe (2) rotates, driving the grouting pipe (3) to rotate.

8. The automatic grouting pipe advancing device for deep hole grouting according to claim 7 is characterized in that: The invention also comprises an isolation mechanism (7), wherein the isolation mechanism (7) comprises a guide frame (71), a space cam (72), a second spring (73), an isolation frame (74) and a push rod (75); a plurality of guide frames (71) are connected to the left of the rotating tube (2); the space cams (72) are slidably connected between the guide frames (71); an inclined groove is formed on the space cam (72); a second spring (73) is connected between the guide frames (71) and the space cam (72); a plurality of isolation frames are slidably connected to the grouting tube (3); (74), the space cam (72) is slidably connected to the isolation frame (74) through an inclined groove, a plurality of push rods (75) are connected to the right side of the space cam (72), and the push rods (75) are squeezed and matched with the expansion airbag (54). When the expansion airbag (54) expands, the push rods (75) are squeezed to move leftward, so that the space cam (72) moves leftward along the guide frame (71), and the second spring (73) is squeezed and contracted. At this time, the space cam (72) triggers the isolation frame (74) to move away from the grouting hole on the grouting pipe (3).

9. The automatic grouting pipe advancing device for deep hole grouting according to claim 8 is characterized by: The invention also comprises an auxiliary mechanism (8), which comprises a guide rod (81), a push plate (82), an extension plate (83) and a third spring (84). The left part of the connecting seat (51) is connected with a plurality of guide rods (81), push plates (82) are slidably connected between the guide rods (81), a plurality of extension plates (83) are clamped on the push plates (82), and a third spring (84) is connected between the guide rods (81) and the push plates (82). According to the size of the drill hole, the extension plates (83) of corresponding shapes are installed on the push plates (82). When the connecting tube (1) and the rotating tube (2) enter the drill hole, the extension plate (83) contacts the inner wall of the drill hole. When the pressure in the drill hole increases, the push plate (82) is pushed to move, so that the push plate (82) contacts the expansion air bag (54), and the third spring (84) is squeezed and contracted.

10. The automatic grouting pipe advancing device for deep hole grouting according to claim 9, characterized in that: The invention also comprises a guiding mechanism (9), the guiding mechanism (9) comprising a second telescopic rod (91), a fourth spring (92) and a guiding plate (93); a plurality of groups of second telescopic rods (91) are connected to the middle of the connecting tube (1); each group is composed of two second telescopic rods (91); a guiding plate (93) is connected between the telescopic ends of the two second telescopic rods (91) in the same group; a fourth spring (92) is connected between the guiding plates (93) and the connected second telescopic rods (91); when the connecting tube (1) enters the borehole, the guiding plates (93) on the second telescopic rods (91) are always in close contact with the inner wall of the borehole through the action force of the fourth spring (92).

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