Non-excavation repairing equipment for underground pipeline

Abstract

The utility model relates to underground pipeline non-excavation repairing equipment which comprises an air bag axle and a repairing air bag arranged on the air bag axle, fixing seats are arranged at the two ends of the air bag axle, mounting seats are arranged on the side walls of the fixing seats, a plurality of mounting pipes are fixed to the side walls of the mounting seats, threaded rods are arranged in the mounting pipes, and lifting rods are slidably connected to the inner walls of the mounting pipes; the lifting rod is arranged on the threaded rod in a sleeving mode and is in threaded connection with the threaded rod, a walking wheel is arranged at the end, away from the mounting base, of the lifting rod, and a driving assembly used for driving the threaded rod to rotate is mounted on the mounting base. Due to the fact that the threaded rod is in threaded connection with the lifting rod and the lifting rod is in sliding connection with the inner wall of the mounting pipe, the lifting rod moves in the axial direction of the threaded rod, the walking wheels abut against the inner wall of the underground pipeline, the walking wheels can be conveniently adjusted according to the pipe diameter of the underground pipeline, and underground pipelines with different pipe diameters can be conveniently repaired.

Description

Technical Field

[0001] The utility model relates to the technical field of underground pipeline repair, in particular to a trenchless repair device for underground pipelines. Background Art

[0002] Underground pipelines refer to various pipes and cables constructed underground, including those for water supply, drainage, gas, heat, electricity, communications, radio and television, and industrial purposes, as well as their ancillary facilities. These pipelines, typically buried underground, are a vital component of urban infrastructure, responsible for the distribution and transmission of water, electricity, heating, gas, and communications for both industrial and civilian use. They are known as the city's "underground lifeline." Trenchless repair methods are commonly used for the maintenance and repair of underground pipelines. A common trenchless repair method involves inflating a bladder to compress the inner liner, forcing it to fit tightly against the wall of the old pipe.

[0003] A trenchless pipe repairer is disclosed in the Chinese utility model patent with publication number CN210424171U, which includes two groups of positioning seats and a cylindrical airbag body. The two groups of positioning seats are parallel to and opposite each other, and the two groups of positioning seats are provided with walking wheels. The two side surfaces of the two groups of positioning seats facing each other are fixedly connected to the two ends of the airbag body respectively. The two groups of positioning seats and the airbag body form an airbag cavity, and an ultraviolet lamp is provided in the airbag cavity. A first sleeve is installed on the side of one group of positioning seats, and the first sleeve is rotatably connected to a screw rod. The motor is fixed to the other group of positioning seats, and the rotating shaft of the motor is fixedly connected to the screw rod. The two groups of positioning seats are installed with a limit device to limit the relative rotation of the two groups of positioning seats. The middle position of the outer circumference of the airbag body is wrapped with plastic wrap, and the outside of the plastic wrap is wrapped with repair material.

[0004] Regarding the above-mentioned related technologies, the inventors believe that the following defects exist: the running wheels in the above-mentioned device cannot be adjusted according to the diameter of the underground pipeline, the scope of application is small, and it cannot meet the needs of underground pipelines with various diameters. If the running wheels do not match the diameter, the airbag will be skewed, resulting in a repair device that can only be applied to underground pipelines with one diameter, thereby increasing the repair cost of the underground pipeline. Utility Model Content

[0005] In order to solve the above problems, the utility model provides a trenchless repair device for underground pipelines.

[0006] The above technical purpose of the present utility model is achieved through the following technical solutions: a trenchless repair device for underground pipelines, comprising an airbag axle and a repair airbag arranged on the airbag axle, a fixed seat is provided at both ends of the airbag axle, a mounting seat is provided on the side wall of the fixed seat, a plurality of mounting tubes are fixed on the side wall of the mounting seat, a threaded rod is provided in the mounting tube, a lifting rod is slidably connected to the inner wall of the mounting tube, the lifting rod is sleeved on the threaded rod and threadedly connected to the threaded rod, a walking wheel is provided on the end of the lifting rod away from the mounting seat, and a driving component for driving the threaded rod to rotate is installed on the mounting seat.

[0007] By adopting the above technical solution, when it is necessary to repair the underground pipeline, the repair equipment is placed in the underground pipeline, and the threaded rod is driven to rotate by the driving assembly. Since the threaded rod is threadedly connected to the lifting rod, and the lifting rod is slidingly connected to the inner wall of the installation pipe, the lifting rod moves axially along the threaded rod, so that the walking wheel abuts against the inner wall of the underground pipeline, which is convenient for adjusting the walking wheel according to the diameter of the underground pipeline, which is conducive to repairing underground pipelines with different diameters.

[0008] Furthermore, a mounting groove is provided on the side wall of the mounting seat away from the fixed seat, the threaded rod is penetrated and arranged on the mounting seat and is rotatably connected, and the driving assembly includes a driving motor fixed to the inner wall of the mounting groove, a driving bevel gear fixed to the output shaft end of the driving motor, and a driven bevel gear fixed to the end of the threaded rod away from the walking wheel and meshing with the driving bevel gear.

[0009] By adopting the above technical solution, the driving motor is started to drive the active bevel gear to rotate, so that the driven bevel gear meshing with the active bevel gear and the driven bevel gear meshing with the active bevel gear rotate, thereby rotating the threaded rod fixed to the driven bevel gear, thereby driving the lifting rod and the travel wheel to move axially along the threaded rod, thereby facilitating the adjustment of the travel wheel.

[0010] Furthermore, a limiting groove is provided on the inner wall of the installation tube, and a limiting block is fixed on the side wall of the lifting rod and is slidably connected to the limiting groove.

[0011] By adopting the above technical solution, the limit block is slidably connected to the inner wall of the limit groove, which limits the moving range of the lifting rod, avoids the lifting rod from detaching from the installation tube, and enhances the stability of the repair equipment.

[0012] Furthermore, a baffle for closing the mounting slot is provided on the side wall of the mounting seat away from the fixing seat.

[0013] By adopting the above technical solution, the baffle seals the installation slot opening, reducing the probability of external dust and debris entering the installation slot and damaging the drive component.

[0014] Further, the side wall of the mounting seat is fixed with a rib plate, and the side wall of the rib plate is fixed with the side wall of the mounting pipe.

[0015] By adopting the above technical scheme, the mounting pipe is reinforced by the rib plate connecting the mounting seat and the mounting pipe, and the stability of the mounting pipe and the lifting rod is enhanced.

[0016] Further, the side wall of the mounting seat near the fixed seat is fixed with a screw rod which is threadedly connected with the fixed seat.

[0017] By adopting the above technical scheme, the mounting seat is threadedly connected with the fixed seat through the screw rod, so that the mounting seat and the fixed seat are detachably connected, and the mounting seat can be easily disassembled for installation and maintenance of the air bag.

[0018] Further, the side wall of the fixed seat near the mounting seat is fixed with a rubber sheet.

[0019] By adopting the above technical scheme, the rubber sheet is made of rubber material and has a large friction coefficient on the surface, the mounting seat cooperates with the fixed seat and abuts against the rubber sheet, so that the friction between the mounting seat and the fixed seat is increased, and the probability of the side wall of the mounting seat rotating on the side wall of the fixed seat is reduced.

[0020] In summary, the utility model has the following beneficial effects:

[0021] 1. In the application, when the underground pipeline needs to be repaired, the repair equipment is placed in the underground pipeline, the threaded rod is rotated by the driving assembly, the lifting rod moves axially along the threaded rod because the threaded rod is threadedly connected with the lifting rod and the lifting rod is slidingly connected with the inner wall of the mounting pipe, the walking wheel abuts against the inner wall of the underground pipeline, the walking wheel is adjusted according to the pipe diameter of the underground pipeline, and different pipe diameters of the underground pipeline are repaired.

[0022] 2. In the application, the driving motor is started to rotate the driving bevel gear, the driven bevel gear meshing with the driving bevel gear is rotated, the threaded rod fixed with the driven bevel gear is rotated, the lifting rod and the walking wheel move axially along the threaded rod, and the walking wheel is adjusted.

[0023] 3. In the application, the limiting block is slidingly connected with the inner wall of the limiting groove, the movement range of the lifting rod is limited, the lifting rod is prevented from being separated from the mounting pipe, and the stability of the repair equipment is enhanced. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is a whole structure schematic view of the embodiment of the utility model;

[0025] Figure 2 is a cross-sectional structure schematic view of the embodiment of the utility model.

[0026] In the figure: 1. Airbag axle; 2. Repair airbag; 3. Fixing seat; 4. Mounting seat; 41. Mounting slot; 5. Mounting tube; 51. Limiting slot; 6. Threaded rod; 7. Lifting rod; 8. Travel wheel; 9. Driving assembly; 91. Driving motor; 92. Driving bevel gear; 93. Driven bevel gear; 10. Limiting block; 11. Baffle; 12. Rib; 13. Screw; 14. Rubber sheet. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application; it is obvious that the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0028] like Figure 1 and Figure 2 As shown, an embodiment of the present application discloses a trenchless repair device for underground pipelines, including an airbag axle 1, a repair airbag 2, a fixing seat 3, a mounting seat 4, a mounting tube 5, a threaded rod 6, a lifting rod 7, a walking wheel 8 and a drive assembly 9.

[0029] The airbag axle 1 is a cylindrical structure, and the airbag axle 1 is arranged horizontally. The repair airbag 2 is a repair airbag 2 commonly used in the prior art and applicable to the present embodiment, and the repair airbag 2 is arranged on the airbag axle 1. The fixing seat 3 is a horizontally arranged circular plate-shaped structure, and there are two fixing seats 3. The two fixing seats 3 are respectively fixed at the two ends of the airbag axle 1, and the axis of each fixing seat 3 coincides with the axis of the airbag axle 1. The mounting seat 4 is a rectangular parallelepiped structure, and there are two mounting seats 4. The two mounting seats 4 are respectively arranged on the side walls of the two fixing seats 3, and each mounting seat 4 has a mounting groove 41 on the side away from the fixing seat 3. The mounting tube 5 is a rectangular tubular structure, and the mounting tube 5 is fixed on the side wall of the mounting seat 4. There are multiple mounting tubes 5. The threaded rod 6 is a rod-shaped structure, and the threaded rod 6 is arranged in the mounting tube 5. The threaded rod 6 is arranged on the mounting seat 4 and is rotatably connected. Lifting rod 7 is a rectangular rod-shaped structure, slidably connected to the inner wall of mounting tube 5, and is sleeved on and threadedly connected to threaded rod 6. Running wheel 8 is a common running wheel 8 in the prior art and suitable for this embodiment, and is disposed at the end of lifting rod 7 away from mounting base 4.

[0030] The driving assembly 9 is installed on the mounting seat 4, and is used for driving the threaded rod 6 to rotate. The driving assembly 9 comprises a driving motor 91, a driving bevel gear 92 and a driven bevel gear 93. The driving motor 91 is fixed on the inner wall of the mounting groove 41. The output shaft of the driving motor 91 extends horizontally, and the axis of the output shaft of the driving motor 91 coincides with the axis of the air bag vehicle axle 1. The driving bevel gear 92 is fixed on the end of the output shaft of the driving motor 91, and the axis of the driving bevel gear 92 coincides with the axis of the output shaft of the driving motor 91. The driven bevel gear 93 is fixed on the end of the threaded rod 6 away from the walking wheel 8. The driven bevel gear 93 is engaged with the driving bevel gear 92, and the axis of the driven bevel gear 93 coincides with the axis of the threaded rod 6.

[0031] When the underground pipeline needs to be repaired, the repair equipment is placed in the underground pipeline. The driving motor 91 is started to drive the driving bevel gear 92 to rotate, so that the driven bevel gear 93 engaged with the driving bevel gear 92 rotates, thereby driving the threaded rod 6 fixed with the driven bevel gear 93 to rotate. Since the threaded rod 6 is threadedly connected with the lifting rod 7, and the lifting rod 7 is slidingly connected with the inner wall of the mounting pipe 5, the lifting rod 7 moves along the axis of the threaded rod 6, so that the walking wheel 8 abuts against the inner wall of the underground pipeline. The walking wheel 8 can be adjusted according to the pipe diameter of the underground pipeline, and the underground pipeline with different pipe diameters can be repaired.

[0032] In order to avoid the lifting rod 7 from being separated from the mounting pipe 5, the limiting groove 51 is formed in the inner wall of the mounting pipe 5. The limiting block 10 is fixed on the side wall of the lifting rod 7 and slidingly connected with the limiting groove 51. The limiting block 10 is slidingly connected with the inner wall of the limiting groove 51, thereby limiting the movement range of the lifting rod 7, avoiding the lifting rod 7 from being separated from the mounting pipe 5, and enhancing the stability of the repair equipment.

[0033] In order to protect the driving assembly 9, the side wall of the mounting seat 4 away from the fixing seat 3 is provided with the baffle 11 used for closing the slot of the mounting groove 41. The baffle 11 closes the slot of the mounting groove 41, thereby reducing the probability that the driving assembly 9 is damaged by external dust and sundries entering the mounting groove 41.

[0034] In order to enhance the stability of the mounting pipe 5 and the lifting rod 7, the rib plate 12 is fixed on the side wall of the mounting seat 4. The side wall of the rib plate 12 is fixed with the side wall of the mounting pipe 5. The mounting seat 4 and the mounting pipe 5 are connected through the rib plate 12, thereby reinforcing the mounting pipe 5, and enhancing the stability of the mounting pipe 5 and the lifting rod 7.

[0035] In order to facilitate the installation and maintenance of the repair air bag 2, the side wall of the mounting seat 4 close to the fixing seat 3 is fixed with the threaded rod 13 threadedly connected with the fixing seat 3. The mounting seat 4 is threadedly connected with the fixing seat 3 through the threaded rod 13, so that the mounting seat 4 and the fixing seat 3 are detachably connected, thereby facilitating the disassembly of the mounting seat 4 for the installation and maintenance of the repair air bag 2.

[0036] In order to reduce the probability of the side wall of the mounting seat 4 rotating on the side wall of the fixing seat 3, a rubber sheet 14 is fixed to the side wall of the fixing seat 3 close to the mounting seat 4. The rubber sheet 14 is made of rubber material and its surface has a large friction coefficient. The mounting seat 4 cooperates with the fixing seat 3 and presses against the rubber sheet 14, which increases the friction between the mounting seat 4 and the fixing seat 3, thereby reducing the probability of the side wall of the mounting seat 4 rotating on the side wall of the fixing seat 3.

[0037] The operating principle of a trenchless repair device for underground pipelines in this embodiment is as follows: when it is necessary to repair an underground pipeline, the repair device is placed in the underground pipeline, and the driving motor 91 is started to drive the active bevel gear 92 to rotate, so that the driven bevel gear 93 meshing with the active bevel gear 92 and the driven bevel gear 93 meshing with the active bevel gear 92 rotate, thereby rotating the threaded rod 6 fixed to the driven bevel gear 93. Since the threaded rod 6 is threadedly connected to the lifting rod 7, the lifting rod 7 is slidingly connected to the inner wall of the mounting tube 5, so that the lifting rod 7 moves axially along the threaded rod 6, so that the walking wheel 8 abuts against the inner wall of the underground pipeline, which is convenient for adjusting the walking wheel 8 according to the diameter of the underground pipeline, which is conducive to repairing underground pipelines with different diameters.

[0038] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, certain improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A trenchless repair device for underground pipelines, comprising an airbag axle (1) and a repair airbag (2) arranged on the airbag axle (1), characterized in that: Both ends of the airbag axle (1) are provided with a fixing seat (3), a mounting seat (4) is provided on the side wall of the fixing seat (3), a plurality of mounting tubes (5) are fixed on the side wall of the mounting seat (4), a threaded rod (6) is provided in the mounting tube (5), a lifting rod (7) is slidably connected to the inner wall of the mounting tube (5), the lifting rod (7) is sleeved on the threaded rod (6) and threadedly connected to the threaded rod (6), a walking wheel (8) is provided at one end of the lifting rod (7) away from the mounting seat (4), and a driving component (9) for driving the threaded rod (6) to rotate is installed on the mounting seat (4).

2. The trenchless repair equipment for underground pipelines according to claim 1, characterized in that: A mounting groove (41) is formed on a side wall of the mounting seat (4) away from the fixed seat (3); the threaded rod (6) is arranged on the mounting seat (4) and is rotatably connected; the driving assembly (9) comprises a driving motor (91) fixed to the inner wall of the mounting groove (41), a driving bevel gear (92) fixed to the end of the output shaft of the driving motor (91), and a driven bevel gear (93) fixed to the end of the threaded rod (6) away from the walking wheel (8) and meshing with the driving bevel gear (92).

3. The trenchless repair equipment for underground pipelines according to claim 2, characterized in that: A limiting groove (51) is provided on the inner wall of the installation tube (5), and a limiting block (10) is fixed on the side wall of the lifting rod (7) and is slidably connected to the limiting groove (51).

4. The trenchless repair equipment for underground pipelines according to claim 3, characterized in that: A baffle (11) for closing the notch of the installation slot (41) is provided on the side wall of the installation seat (4) away from the fixing seat (3).

5. The trenchless repair equipment for underground pipelines according to claim 4, characterized in that: A rib plate (12) is fixed to the side wall of the mounting seat (4), and the side wall of the rib plate (12) is fixed to the side wall of the mounting tube (5).

6. The trenchless repair equipment for underground pipelines according to claim 1, characterized in that: A screw (13) threadedly connected to the fixing seat (3) is fixed to the side wall of the mounting seat (4) close to the fixing seat (3).

7. The trenchless repair equipment for underground pipelines according to claim 6, characterized in that: A rubber sheet (14) is fixed to the side wall of the fixing seat (3) close to the mounting seat (4).

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