Dredging equipment for drainage blind pipe of railway tunnel

Abstract

The invention belongs to the technical field of railway tunnels, particularly relates to dredging equipment for a drainage blind pipe of a railway tunnel, and aims to solve the problems that the dredging equipment cannot adapt to variable pipe diameters and is difficult to stably move forwards on the circumferential inner wall of the drainage blind pipe in the prior art. A dust collection assembly is rotationally installed on the other side of the power box, an air blowing assembly is arranged on the other side of the circumference of the power box, a first walking mechanism is arranged on the other side of the rotating assembly, a second walking mechanism is arranged on one side of the circumference of the power box, and a third walking mechanism is arranged on the outer side of the dust collection assembly. The first walking mechanism comprises an air pressure rod, a first roller and an air pump, the second walking mechanism comprises a rotating rod, a hydraulic column and a second roller, and the third walking mechanism comprises a side plate, an air cylinder, a rocker and a third roller, so that the first roller, the second roller and the third roller can be always attached to and adapt to the circumferential inner wall of the drainage blind pipe; and therefore, the dredging equipment stably moves forwards.

Description

Technical Field

[0001] The invention relates to the technical field of railway tunnels, and in particular to a drainage blind pipe dredging device for railway tunnels. Background Art

[0002] The drainage blind pipe is also called the drainage blind ditch. Its material is hydrophobic and has low resistance. It has extremely high surface water permeability and internal water permeability, and has excellent pressure resistance and deformation adaptability. It also has excellent chemical inertness. It can maintain a long life in geotechnical engineering. It is light in weight, easy to cut, and easy to install. It is widely used in underground water supply and drainage projects in civil engineering, transportation, water conservancy, civil engineering, mining, environmental protection and other construction projects. The working principle of the drainage blind pipe in the tunnel is that the fissure water in the tunnel rock mass leaks down along the geotextile behind the waterproof board, the gap between the geotextile and the initial support surface of the tunnel to the drainage blind pipe, and is discharged in time to the tunnel drainage ditch through the blind pipe. Its purpose is to discharge the fissure water behind the tunnel lining, prevent water accumulation behind the tunnel, and avoid the fissure water behind the tunnel lining from being blocked behind the lining due to failure to be discharged in time, resulting in the destruction of the lining structure and cracks, which eventually leads to tunnel leakage, and even endangers the structural safety and causes safety accidents.

[0003] After searching, the patent publication number CN216827691U discloses a patent named a railway tunnel drainage blind pipe dredging equipment. The technical problem to be solved is for the drainage blind pipe blocked by calcium salt crystal precipitation, in which the acidic solution that has not fully reacted will be directly discharged, thereby causing serious pollution to the environment. By setting a liquid injection part and a waste liquid recovery part, when the scale layer in the drainage blind pipe is dissolved and dredged by chemical methods, the chemical reaction residues of the sediment inside the railway tunnel drainage blind pipe are recovered to prevent the chemical residues from being directly discharged into the natural environment and causing pollution.

[0004] However, the following drawbacks still need to be addressed: the drainage blind pipes of railway tunnels are characterized by small diameter, variable diameter, curved pipes, and strong blockage. The drainage blind pipe dredging equipment cannot adapt to the variable pipe diameter and is not easy to move forward stably on the inner wall of the drainage blind pipe circle. Summary of the invention

[0005] Based on the existing technical problems that the equipment cannot adapt to variable pipe diameters and is not easy to move stably along the inner wall of the drainage blind pipe, the present invention proposes a railway tunnel drainage blind pipe dredging device.

[0006] The present invention proposes a railway tunnel drainage blind pipe dredging device, comprising a power box, a rotating assembly is rotatably mounted on one side of the power box, a dust suction assembly is rotatably mounted on the other side of the power box, and an air blowing assembly is arranged on the other side of the circumference of the power box, a first walking mechanism is arranged on the other side of the rotating assembly, a second walking mechanism is arranged on one side of the circumference of the power box, and a third walking mechanism is arranged on the outside of the dust suction assembly, the first walking mechanism comprises three pneumatic rods at equal angles, and a first roller is rotatably mounted on the movable end of the pneumatic rod, an air pump is arranged on the outside of the bottom end of the pneumatic rod, and the third ... The second walking mechanism includes three rotating rods at equal angles, and the bottom end of the rotating rod is rotatably installed on one side of the outer side of the power box circle, a hydraulic column is rotatably installed between the inner side of the rotating rod and the middle of the outer side of the power box circle, and a second roller is rotatably installed on the end of the rotating rod, and the third walking mechanism includes three side panels at equal angles, and the bottom end of the side panel is fixedly connected to one side of the dust collection assembly, a cylinder is fixedly installed in the middle of the side panel, a rocker is fixedly installed on the movable end of the cylinder, and the third roller is rotatably installed on the bottom end of the rocker, one side of the top end of the third roller is rotatably connected to the other side of the rocker, and the third roller is cam-shaped.

[0007] Preferably, a driving assembly and a control assembly are arranged inside the power box, a protective shell is arranged outside the power box, and connecting shafts are fixedly installed in the middle of the outer walls on both sides of the protective shell.

[0008] Preferably, the rotating component includes a mounting plate, and a driving motor is fixedly installed in the middle of one side of the mounting plate, a first fixing ear is fixedly installed in the middle of the other side of the mounting plate, a rotating shaft is fixedly installed at the output end of the driving motor, and a cutting component is provided on one side of the circumference of the rotating shaft, a fixing ring is fixedly installed on the other side of the circumference of the rotating shaft, a plurality of electric push rods with equal angles are fixedly installed on the outer wall of one side of the fixing ring, and moving rings are fixedly installed at the ends of the plurality of electric push rods.

[0009] Preferably, the cutting assembly includes a drill bit, and a stirring frame is fixedly installed in the middle of one side of the drill bit, and a plurality of cutting blades with equal angles are rotatably installed on the outer wall of the other side of the drill bit. A support rod is rotatably installed between the inner side of the cutting blade and the outer side of the circumference of the moving circle, and the stirring rod is composed of two L-shaped rods overlapping in reverse, and the two L-shaped rods have different lengths and widths.

[0010] Preferably, the air blowing assembly comprises a diverter ring, and a plurality of jet pipes with equal angles are fixedly mounted on the outer side of the diverter ring, each of the jet pipes is a telescopic pipe, and a support spring is slidably sleeved on the outer side of the jet pipe.

[0011] Preferably, the dust collection assembly includes a dust collection box, and the dust collection box is in the shape of an equilateral triangle, a second fixing ear is fixedly installed in the middle of the outer wall of one side of the dust collection box, an exhaust pipe is fixedly connected between the outlet end of one side of the dust collection box and the inlet end of the diverter ring, and a dust collection hood is fixedly installed at the inlet end of the other side of the dust collection box, and the dust collection hood is outward-expanding.

[0012] Preferably, a fixing frame is fixedly mounted on the lower end of the other side of the outer walls on the three sides of the dust collection box, and the top end of the fixing frame is rotatably sleeved with the middle of the third roller.

[0013] Preferably, the three first rollers of the first walking mechanism, the three second rollers of the second walking mechanism, and the three third rollers of the third walking mechanism are arranged crosswise, and the outer circumferences of the first rollers, the second rollers and the third rollers are all provided with anti-slip grooves.

[0014] Preferably, a dust collection assembly and a dust filtering mechanism are provided inside the dust collection box.

[0015] Preferably, the outer sides of the power box, the rotating assembly, the dust suction assembly, the cutting assembly and the air blowing assembly are all provided with corrosion-resistant and wear-resistant coatings.

[0016] The beneficial effects of the present invention are:

[0017] 1. A railway tunnel drainage blind pipe dredging device proposed by the present invention comprises a first walking mechanism disposed on the other side of a rotating assembly, a second walking mechanism disposed on the circumferential side of a power box, and a third walking mechanism disposed on the outer side of a dust collecting assembly. When the dredging device moves forward in the drainage blind pipe, it is driven by the power box, and the rotating cutting assembly crushes and cuts the condensate on the inner wall of the drainage blind pipe, so as to achieve the effect of dredging and cleaning the circumferential inner wall of the drainage blind pipe, wherein the first walking mechanism comprises a pneumatic rod, a first roller and an air pump, the second walking mechanism comprises a rotating rod, a hydraulic column and a second roller, and the third walking mechanism comprises a side plate, a cylinder, and a rocker and the third roller, so that the first roller, the second roller and the third roller can always fit and adapt to the circumferential inner wall of the drainage blind pipe, so that the dredging equipment can move forward stably, and the three first rollers of the first walking mechanism, the three second rollers of the second walking mechanism, and the three third rollers of the third walking mechanism are cross-arranged, which greatly increases the effective forward movement of the dredging equipment in the drainage blind pipe and reduces the slippage of the first roller and the second roller on the inner wall of the drainage blind pipe. The third roller is cam-shaped, and when the cylinder reciprocates and extends, the rocker can push the third roller to rotate, thereby pushing the dredging equipment forward as a whole when the drainage blind pipe is curved and has a small diameter.

[0018] 2. A railway tunnel drainage blind pipe dredging device proposed by the present invention drives a motor to rotate a rotating shaft, thereby causing a cutting assembly to rotate accordingly to break condensate on the circumferential inner wall of the drainage blind pipe while advancing. The stirring frame first rotates and breaks the circumferential center of the drainage blind pipe, wherein the stirring rod is composed of two L-shaped rods with different lengths and widths overlapping in reverse, thereby expanding the range of breaking up and breaking. Then the drill bit rotates and advances, and a plurality of cutting blades further expand the cutting and breaking range to remove condensate on the circumferential inner wall of the drainage blind pipe. A plurality of electric push rods with equal angles are fixedly installed between a fixed circle and a moving circle arranged on the circumference of the rotating shaft. The extension of the electric push rods can cause the moving circle to move along the rotating shaft, and a plurality of cutting blades are spread apart by a supporting rod, so that the ends of the cutting blades are always inclined to fit the circumferential inner wall of the drainage blind pipe, thereby cutting and removing condensate on the circumferential inner wall of the drainage blind pipe as much as possible. The diameters of the stirring frame, the drill bit and the cutting blades are increased in sequence, and the circumferential inner wall of the drainage blind pipe is comprehensively dredged and cleaned from point to surface.

[0019] 3. A railway tunnel drainage blind pipe dredging device proposed by the present invention has a dust collection component and a dust filtering mechanism arranged inside a dust collection box, and a dust collection hood is located at the end of the dredging device. The dust collection component firstly vacuums the inside of the dredged drainage blind pipe under negative pressure, and collects the particles inside the drainage blind pipe into the dust collection box, and then the airflow is filtered by the dust filtering mechanism and introduced into the diversion circle by the exhaust pipe, and then sprayed on the circumferential inner wall of the drainage blind pipe by multiple jet pipes, which can not only vibrate the drainage blind pipe to make the particles on the circumferential inner wall fall off, but also further clean the circumferential inner wall of the drainage pipe, and each jet pipe is a telescopic pipe, and a support spring is slidably sleeved on the outer side of the circumference of the jet pipe, so that the jet pipe can adapt to drainage blind pipes with variable diameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of a railway tunnel drainage blind pipe dredging device proposed by the present invention;

[0021] Figure 2 A schematic diagram of the side structure of a railway tunnel drainage blind pipe dredging device proposed by the present invention;

[0022] Figure 3 A schematic diagram of the side structure of a cutting assembly of a railway tunnel drainage blind pipe dredging device proposed by the present invention;

[0023] Figure 4 This is a schematic structural diagram of a cutting assembly for a railway tunnel drainage blind pipe dredging device proposed by the present invention;

[0024] Figure 5 This is a schematic diagram of the structure of an air blowing assembly of a railway tunnel drainage blind pipe dredging device proposed by the present invention;

[0025] Figure 6This is a structural schematic diagram of the third traveling mechanism of a railway tunnel drainage blind pipe dredging device proposed by the present invention.

[0026] In the figure: 1 power box, 2 rotating assembly, 3 dust suction assembly, 4 cutting assembly, 5 first walking mechanism, 6 second walking mechanism, 7 third walking mechanism, 8 air blowing assembly;

[0027] 11 protective shell, 12 connecting shaft;

[0028] 21 mounting plate, 22 driving motor, 23 rotating shaft, 24 first fixing ear;

[0029] 31 dust collection box, 32 exhaust pipe, 33 second fixing ear, 34 dust collection hood;

[0030] 41 drill bit, 42 stirring frame, 43 fixed circle, 44 moving circle, 45 cutting disc, 46 support rod, 47 electric push rod;

[0031] 51 air pressure rod, 52 air pump, 53 first roller;

[0032] 61 rotating rod, 62 second roller, 63 hydraulic column;

[0033] 71 side plate, 72 cylinder, 73 rocker, 74 fixed frame, 75 third roller;

[0034] 81 is a flow divider, 82 is a jet pipe, and 83 is a support spring. DETAILED DESCRIPTION

[0035] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0036] In the description of this patent, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be fixedly connected or set, or it can be detachably connected or set, or connected or set in one piece. For ordinary technicians in this field, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0037] Reference Figure 1-6A railway tunnel drainage blind pipe dredging device comprises a power box 1, a rotating assembly 2 is rotatably mounted on one side of the power box 1, a dust suction assembly 3 is rotatably mounted on the other side of the power box 1, and an air blowing assembly 8 is arranged on the other side of the circumference of the power box 1, a first walking mechanism 5 is arranged on the other side of the rotating assembly 2, a second walking mechanism 6 is arranged on one side of the circumference of the power box 1, and a third walking mechanism 7 is arranged on the outside of the dust suction assembly 3, the first walking mechanism 5 comprises three pneumatic rods 51 at equal angles, and a first roller 53 is rotatably mounted on the movable end of the pneumatic rod 51, an air pump 52 is arranged on the outside of the bottom end of the pneumatic rod 51, and the second walking mechanism 6 comprises three equal angles. The third walking mechanism 7 comprises a rotating rod 61 with an angle, and the bottom end of the rotating rod 61 is rotatably installed with one side of the outer side of the circumference of the power box 1, a hydraulic column 63 is rotatably installed between the inner side of the rotating rod 61 and the middle of the outer side of the circumference of the power box 1, a second roller 62 is rotatably installed at the end of the rotating rod 61, and the third walking mechanism 7 comprises three side plates 71 with equal angles, and the bottom end of the side plate 71 is fixedly connected to one side of the dust collection component 3, a cylinder 72 is fixedly installed in the middle of the side plate 71, a rocker 73 is fixedly installed at the movable end of the cylinder 72, and a third roller 75 is rotatably installed at the bottom end of the rocker 73, one side of the top end of the third roller 75 is rotatably connected to the other side of the rocker 73, and the third roller 75 is cam-shaped.

[0038] In the present invention, a driving assembly and a control assembly are arranged inside the power box 1, a protective shell 11 is arranged outside the power box 1, and a connecting shaft 12 is fixedly installed in the middle of the outer walls on both sides of the protective shell 11, and the connecting shaft 12 is rotatably connected with the first fixing ear 24 and the second fixing ear 33, so that the rotating assembly 2, the dust collecting assembly 3 and the power box 1 are rotatably installed, so as to better adapt to the unevenness caused by the condensation on the inner wall of the drainage blind pipe and the curved corners of the drainage blind pipe;

[0039] The rotating assembly 2 includes a mounting plate 21, and a driving motor 22 is fixedly mounted in the middle of one side of the mounting plate 21, and a first fixing ear 24 is fixedly mounted in the middle of the other side of the mounting plate 21, a rotating shaft 23 is fixedly mounted on the output end of the driving motor 22, and a cutting assembly 4 is arranged on one side of the circumference of the rotating shaft 23, and a fixing ring 43 is fixedly mounted on the other side of the circumference of the rotating shaft 23, and a plurality of electric push rods 47 with equal angles are fixedly mounted on the outer wall of one side of the fixing ring 43, and a moving ring 44 is fixedly mounted on the ends of the plurality of electric push rods 47;

[0040] The cutting assembly 4 includes a drill bit 41, and a stirring frame 42 is fixedly installed in the middle of one side of the drill bit 41, and a plurality of cutting blades 45 with equal angles are rotatably installed on the outer wall of the other side of the drill bit 41, and a support rod 46 is rotatably installed between the inner side of the cutting blade 45 and the outer side of the circumference of the moving circle 44, and the stirring rod 42 is composed of two L-shaped rods overlapped in reverse, and the lengths and widths of the two L-shaped rods are different;

[0041] The air blowing assembly 8 includes a flow dividing ring 81, and a plurality of jet pipes 82 with equal angles are fixedly installed on the outer side of the flow dividing ring 81. Each jet pipe 82 is a telescopic pipe, and a support spring 83 is slidably sleeved on the outer side of the jet pipe 82.

[0042] The dust collection assembly 3 includes a dust collection box 31, and the dust collection box 31 is in the shape of an equilateral triangle. A second fixing ear 33 is fixedly installed in the middle of the outer wall of one side of the dust collection box 31. An exhaust pipe 32 is fixedly connected between the outlet end of one side of the dust collection box 31 and the inlet end of the diverter ring 81. A dust collection hood 34 is fixedly installed at the inlet end of the other side of the dust collection box 31. The dust collection hood 34 is outwardly expanded.

[0043] A fixing frame 74 is fixedly mounted on the lower end of the other side of the three side outer walls of the dust collecting box 31, and the top end of the fixing frame 74 is rotatably sleeved with the middle of the third roller 75;

[0044] The three first rollers 53 of the first walking mechanism 5, the three second rollers 62 of the second walking mechanism 6, and the three third rollers 75 of the third walking mechanism 7 are arranged crosswise, and the outer sides of the circumferences of the first rollers 53, the second rollers 62 and the third rollers 75 are all provided with anti-slip grooves;

[0045] The dust collecting box 31 is provided with a dust collecting assembly and a dust filtering mechanism;

[0046] The outer sides of the power box 1, the rotating assembly 2, the dust suction assembly 3, the cutting assembly 4 and the air blowing assembly 8 are all provided with corrosion-resistant and wear-resistant coatings.

[0047] Working principle: A first walking mechanism 5 is arranged on the other side of the rotating component 2, a second walking mechanism 6 is arranged on one side of the circumference of the power box 1, and a third walking mechanism 7 is arranged on the outside of the dust collection component 3. When the dredging equipment moves forward in the drainage blind pipe, it is driven by the power box 1, and the rotating cutting component 4 breaks and cuts the condensate on the inner wall of the drainage blind pipe to achieve the effect of dredging and cleaning the circumferential inner wall of the drainage blind pipe. The first walking mechanism 5 includes a pneumatic rod 51, a first roller 53 and an air pump 52, the second walking mechanism 6 includes a rotating rod 61, a hydraulic column 63 and a second roller 62, and the third walking mechanism 7 includes a side plate 71, a cylinder 72, a rocker 73 and a third roller 75. The first roller 53, the second roller 62 and the third roller 75 can all always fit and adapt to the inner wall of the drainage blind pipe, so that the dredging device can move forward stably, and the three first rollers 53 of the first walking mechanism 5, the three second rollers 62 of the second walking mechanism 6, and the three third rollers 75 of the third walking mechanism 7 are arranged crosswise, which greatly increases the effective forward movement of the dredging device in the drainage blind pipe and reduces the phenomenon that the first roller 53 and the second roller 62 slip on the inner wall of the drainage blind pipe. The third roller 75 is cam-shaped. When the cylinder 72 reciprocates and retracts, the rocker 73 can push the third roller 75 to rotate, thereby pushing the dredging device forward as a whole when the drainage blind pipe is curved and has a small diameter;

[0048] The driving motor 22 is driven to rotate the rotating shaft 23, and then the cutting assembly 4 is rotated to break the condensate on the inner wall of the drainage blind pipe while moving forward. The stirring frame 42 first rotates and breaks the condensate on the inner wall of the drainage blind pipe. The stirring rod 42 is composed of two L-shaped rods of different lengths and widths overlapped in reverse to expand the range of breaking and breaking. Then the drill bit 41 rotates forward, and multiple cutting blades 45 further expand the cutting and breaking range to remove the condensate on the inner wall of the drainage blind pipe. The rotating shaft 23 is arranged around the circumference of the drainage blind pipe. A plurality of electric push rods 47 with equal angles are fixedly installed between the fixed circle 43 and the movable circle 44. The electric push rods 47 are extended to make the movable circle 44 move along the rotating shaft 23, and the plurality of cutting blades 45 are spread out through the support rods 46, so that the ends of the cutting blades 45 are always inclined to fit the inner wall of the circumference of the drainage blind pipe, and the condensation on the inner wall of the circumference of the drainage blind pipe is cut and removed as much as possible. The diameters of the stirring frame 42, the drill bit 41 and the cutting blades 45 are increased in sequence, and the inner wall of the circumference of the drainage blind pipe is fully dredged and cleaned from point to surface.

[0049] A dust collection assembly and a dust filtering mechanism are arranged inside the dust collection box 31, and the dust collection hood 34 is located at the end of the dredging device. The dust collection assembly 3 firstly vacuums the inside of the dredged drainage blind pipe with negative pressure, and collects the particles inside the drainage blind pipe into the dust collection box 31, and then the airflow is introduced into the diverter ring 81 by the exhaust pipe 32 after being filtered by the dust filtering mechanism, and is sprayed on the circumferential inner wall of the drainage blind pipe by multiple jet pipes 82, which can not only vibrate the drainage blind pipe to make the particles on the circumferential inner wall fall off, but also further clean the circumferential inner wall of the drainage pipe, and each jet pipe 82 is a telescopic pipe, and a support spring 83 is slidably sleeved on the outer side of the circumference of the jet pipe 82, so that the jet pipe 82 can adapt to drainage blind pipes with variable diameters.

[0050] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A railway tunnel drainage blind pipe dredging device, comprising a power box (1), a rotating assembly (2) rotatably mounted on one side of the power box (1), a dust suction assembly (3) rotatably mounted on the other side of the power box (1), and an air blowing assembly (8) is arranged on the other side of the circumference of the power box (1), characterized in that: A first walking mechanism (5) is arranged on the other side of the rotating assembly (2), a second walking mechanism (6) is arranged on one side of the circumference of the power box (1), and a third walking mechanism (7) is arranged on the outside of the dust collecting assembly (3), the first walking mechanism (5) comprises three pneumatic rods (51) at equal angles, and a first roller (53) is rotatably mounted on the movable end of the pneumatic rod (51), an air pump (52) is arranged on the outside of the bottom end of the pneumatic rod (51), and the second walking mechanism (6) comprises three rotating rods (61) at equal angles, and the bottom end of the rotating rod (61) is rotatably mounted on one side of the circumference of the power box (1), and the inner side of the rotating rod (61) is rotatably mounted on the outer side of the circumference of the power box (1). A hydraulic column (63) is rotatably mounted between the middle of the outer side of the force box (1), a second roller (62) is rotatably mounted at the end of the rotating rod (61), the third walking mechanism (7) comprises three side plates (71) with equal angles, the bottom end of the side plate (71) is fixedly connected to one side of the dust collecting assembly (3), a cylinder (72) is fixedly mounted in the middle of the side plate (71), a rocker (73) is fixedly mounted at the movable end of the cylinder (72), and a third roller (75) is rotatably mounted at the bottom end of the rocker (73), one side of the top end of the third roller (75) is rotatably connected to the other side of the rocker (73), and the third roller (75) is cam-shaped.

2. A railway tunnel drainage blind pipe dredging device according to claim 1, characterized in that: A driving component and a control component are arranged inside the power box (1), a protective shell (11) is arranged outside the power box (1), and a connecting shaft (12) is fixedly installed in the middle of the outer walls on both sides of the protective shell (11).

3. The railway tunnel drainage blind pipe dredging equipment according to claim 1 is characterized in that: The rotating assembly (2) comprises a mounting plate (21), wherein a driving motor (22) is fixedly mounted in the middle of one side of the mounting plate (21), and a first fixing ear (24) is fixedly mounted in the middle of the other side of the mounting plate (21); a rotating shaft (23) is fixedly mounted on the output end of the driving motor (22), and a cutting assembly (4) is arranged on one circumferential side of the rotating shaft (23); a fixing ring (43) is fixedly mounted on the other circumferential side of the rotating shaft (23); a plurality of electric push rods (47) at equal angles are fixedly mounted on the outer wall of one side of the fixing ring (43), and moving rings (44) are fixedly mounted at the ends of the plurality of electric push rods (47).

4. The railway tunnel drainage blind pipe dredging equipment according to claim 3 is characterized in that: The cutting assembly (4) comprises a drill bit (41), and a stirring frame (42) is fixedly installed in the middle of one side of the drill bit (41), and a plurality of cutting blades (45) with equal angles are rotatably installed on the outer wall of the other side of the drill bit (41), and a support rod (46) is rotatably installed between the inner side of the cutting blade (45) and the outer side of the circumference of the moving circle (44), and the stirring rod (42) is composed of two L-shaped rods overlapped in reverse, and the two L-shaped rods have different lengths and widths.

5. The railway tunnel drainage blind pipe dredging equipment according to claim 1 is characterized in that: The air blowing assembly (8) comprises a flow dividing ring (81), and a plurality of jet pipes (82) with equal angles are fixedly mounted on the outer circumference of the flow dividing ring (81), each of the jet pipes (82) is a telescopic pipe, and a support spring (83) is slidably sleeved on the outer circumference of the jet pipe (82).

6. The railway tunnel drainage blind pipe dredging equipment according to claim 5, characterized in that: The dust collection assembly (3) comprises a dust collection box (31), and the dust collection box (31) is in the shape of an equilateral triangle. A second fixing ear (33) is fixedly installed in the middle of an outer wall of one side of the dust collection box (31). An exhaust pipe (32) is fixedly connected between an outlet end of one side of the dust collection box (31) and an inlet end of a diverter ring (81). A dust collection hood (34) is fixedly installed at the inlet end of the other side of the dust collection box (31), and the dust collection hood (34) is outwardly expanded.

7. The railway tunnel drainage blind pipe dredging equipment according to claim 6, characterized in that: A fixing frame (74) is fixedly mounted on the lower end of the other side of the three side outer walls of the dust collection box (31), and the top end of the fixing frame (74) is rotatably sleeved with the middle of the third roller (75).

8. The railway tunnel drainage blind pipe dredging equipment according to claim 1 is characterized in that: The three first rollers (53) of the first walking mechanism (5), the three second rollers (62) of the second walking mechanism (6), and the three third rollers (75) of the third walking mechanism (7) are arranged crosswise, and the outer sides of the circumferences of the first rollers (53), the second rollers (62), and the third rollers (75) are all provided with anti-slip grooves.

9. The railway tunnel drainage blind pipe dredging device according to claim 5, characterized in that: A dust collection assembly and a dust filtering mechanism are arranged inside the dust collection box (31).

10. The railway tunnel drainage blind pipe dredging equipment according to claim 3, characterized in that: The outer sides of the power box (1), the rotating assembly (2), the dust suction assembly (3), the cutting assembly (4) and the air blowing assembly (8) are all provided with corrosion-resistant and wear-resistant coatings.

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