Pipe wall crack repairing device based on trenchless pipeline repairing technology

Abstract

The utility model relates to the technical field of underground pipeline maintenance, in particular to a pipe wall crack repairing device based on a trenchless pipeline repairing technology, which comprises a support and the like. The supports are assembly carriers of the repairing device, the supports are placed in dug grooves in the two ends of a to-be-repaired pipeline for use, the guide rod and the lead screw are arranged between the two supports in parallel and penetrate through the to-be-repaired pipeline, a first motor is fixedly installed on the support on one side, and an output shaft of the first motor is connected with the lead screw. The guide rod and the lead screw are spliced and then extend into a pipeline to be repaired, the first motor drives the shell, the baffle, the rotating frame and the like to integrally move and repair in the pipeline through the lead screw, and the second motor is matched to drive the gear to be meshed with the gear ring, so that the to-be-repaired positions of the pipe walls of the gluing piece and the uniform smearing piece on the rotating frame are rotationally glued and repaired; large-scale manual intervention is not needed, and the working efficiency of pipeline crack repairing is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of underground pipeline maintenance, in particular to a pipe wall crack repair device based on the trenchless pipeline repair technology. Background Technique

[0002] As a key component of modern urban infrastructure, the urban underground pipeline system is responsible for various important functions such as water supply, drainage, and gas transmission. However, over time, these pipelines are prone to problems such as cracks and leaks due to factors such as long-term use, corrosion, and geological changes, which not only affect their normal operation but also shorten their service life.

[0003] Traditional repair methods often rely on excavating the road surface to access the damaged pipeline. Although this method is direct, it has significant drawbacks: the construction process is time-consuming and costly, it also disrupts traffic flow and may damage the surrounding environment. In addition, the excavation operation may pose a threat to adjacent buildings and other underground facilities, increasing additional risks and repair costs. Since the trenchless pipeline repair technology is a technology that repairs and updates underground pipelines without damaging the ground surface, it can greatly reduce the impact of construction on the environment and quickly restore the function of the pipeline. Therefore, we propose a pipe wall crack repair device based on the trenchless pipeline repair technology to overcome the defects of traditional repair technologies. Content of the Utility Model

[0004] In order to overcome the above-mentioned shortcomings of the prior art, the utility model provides a pipe wall crack repair device based on the trenchless pipeline repair technology, which can achieve the effect of quickly repairing pipeline cracks while reducing the impact of construction on the environment.

[0005] A pipe wall crack repair device based on trenchless pipe repair technology, comprising a bracket, a guide rod and a lead screw. The bracket is an assembly carrier of this repair device. The bracket is placed in the excavation grooves at both ends of the pipe to be repaired for use. The guide rod and the lead screw are arranged in parallel between the two brackets and penetrate through the pipe to be repaired. A first motor is fixedly installed on one of the brackets, and the output shaft of the first motor is connected to the lead screw. It further includes: a housing, which is disc-shaped and slidably arranged on the guide rod and the lead screw; a baffle, fixedly connected to the housing through a bearing. The bearing is clamped between the housing and the baffle. The outer side wall of the bearing is a chute and there are two through ports inside it. One through port of the bearing is slidably connected to the guide rod, and the other through port of the bearing is in threaded cooperation with the lead screw; a rotating frame, rotatably installed in the chute on the outer wall of the bearing. The rotating frame consists of two inner and outer rings; a toothed ring, fixedly connected to one side of the inner ring of the rotating frame. The bearing is located inside the housing; a second motor, fixedly connected to the side of the baffle close to the housing; a gear, fixedly installed on the output shaft of the second motor; a plurality of cameras, circumferentially arranged on the outer side wall of the baffle. The cameras are used to assist external personnel in detecting cracks on the inner wall of the pipe; a glue application member, arranged on the rotating frame and used for applying glue to the pipe wall cracks; a smoothing member, arranged on the rotating frame and used for smoothing the repair glue sprayed by the glue application member onto the inner wall of the pipe, so as to achieve the effect of repairing the pipe wall cracks based on trenchless pipe repair technology.

[0006] Further, one end of the guide rod is a splicing screw one, and the other end of the guide rod is provided with a threaded port adapted to the splicing screw one. One end of the lead screw is a splicing screw two, and the other end of the lead screw is also provided with a threaded port adapted to the splicing screw two. Both the guide rod and the lead screw are composed of small continuous segments spliced together. The operator first continuously splices the guide rod and the lead screw in the excavation grooves of the pipe to be repaired, then penetrates them into the pipe to be repaired, and finally installs the guide rod and the lead screw on the brackets placed in the excavation grooves at both ends for use.

[0007] Further, the glue application member includes a storage tank, a filling pipe and a nozzle. The storage tank is fixedly installed on the outer wall of the inner ring of the rotating frame. The storage tank is a glue container and is internally provided with a liquid pumping pump. The filling pipe penetrates through the outer ring side wall of the rotating frame and communicates with the inside of the storage tank. The nozzle is installed on the outer ring side wall of the rotating frame. The nozzle communicates with the inside of the storage tank. The storage tank provides glue to the nozzle through the liquid pumping pump it internally installs, so that the nozzle sprays glue to repair the cracks in the pipe wall.

[0008] Further, the nozzle is integrally fan-shaped. The nozzle can spray the glue in a fan shape onto the cracks on the inner wall of the pipe, so that the glue can be more evenly covered on the cracks on the inner wall of the pipe body when sprayed, improving the quality of glue application by the nozzle.

[0009] Furthermore, the spreading member includes a cylinder, a mounting plate, a spring telescopic rod, and a spreading roller. A plurality of cylinders are provided and fixedly installed on the outer side of the inner ring of the rotating frame. The telescopic rods of the cylinders all pass through the outer ring of the rotating frame and are connected to a mounting plate. A spring telescopic rod is fixedly connected to the mounting plate. The spring telescopic rod has elasticity and a spreading roller is installed at its end. The spreading roller is used to spread the glue sprayed on the inner wall of the pipe evenly, so that the glue can be fully repaired into the cracks in the pipe wall.

[0010] Furthermore, an air drying member is provided on the rotating frame. The air drying member includes a mounting frame, a fan, and an air outlet. A mounting frame is also fixedly installed between the inner and outer rings of the rotating frame. A fan is installed in the mounting frame. An air outlet is opened at the port of the mounting frame located outside the rotating frame. The fan blows air from the air outlet of the mounting frame onto the glue at the crack on the inner wall of the pipe, improving the air drying efficiency of the glue.

[0011] Furthermore, a filter screen is provided at the air outlet of the mounting frame. The filter screen is used to block the dust in the pipe wall from entering the fan in the mounting frame, thus affecting the normal use of the fan.

[0012] Furthermore, a circle of lamp holders is circumferentially arranged on the outer wall of the baffle. The lamp holders are arranged outside the camera. The camera faces outward towards the lamp holders. A plurality of lighting lamps are installed on the lamp holders. The lighting lamps are used to make the camera detect the splitting condition on the inner wall of the pipe more clearly, improving the accuracy of operating and repairing the cracks in the pipe wall.

[0013] The beneficial effects are as follows: 1. In the present utility model, the guide rod and the lead screw are spliced and extended into the pipe to be repaired. The first motor drives the overall movement of the shell, the baffle, the rotating frame, etc. in the pipe for repair through the lead screw. Then, in cooperation with the second motor driving the gear and the toothed ring to mesh, the glue applying member and the spreading member on the rotating frame rotate to apply glue for repair at the place to be repaired on the pipe wall, without large-scale manual intervention, improving the working efficiency of repairing the pipe cracks.

[0014] 2. The nozzle of the present utility model is designed as a fan shape, which helps the glue to cover the crack more evenly. Then, the air drying member is set to accelerate the drying speed of the glue, enabling the repaired pipe to resume use faster and reducing the downtime.

[0015] 3. The guide rod and the lead screw of the present utility model adopt a modular design, and the length can be adjusted according to actual needs, suitable for pipes with different diameters and lengths. At the same time, with the use of the camera and the lighting system, the operator can clearly observe the internal situation of the pipe, ensuring that the cracks are accurately identified and repaired targeted. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the present utility model.

[0017] Figure 2 This is a schematic diagram of the guide rod, splicing screw one, lead screw, and splicing screw two of the present utility model.

[0018] Figure 3 This is a schematic diagram of the cooperation relationship among the toothed ring, motor two, and gear of the present utility model.

[0019] Figure 4 This is an exploded view of the rotating frame and the baffle of the present utility model.

[0020] Figure 5 This is a connection relationship diagram of the rotating frame, nozzle, coating roller, and fan of the present utility model.

[0021] Figure 6 This is a position relationship diagram of the baffle, camera, lamp holder, and illuminating lamp of the present utility model.

[0022] Names and serial numbers of components in the figure: 1 - bracket, 2 - guide rod, 201 - splicing screw one, 3 - lead screw, 301 - splicing screw two, 4 - motor one, 5 - housing, 51 - baffle, 6 - bearing, 7 - rotating frame, 8 - storage tank, 9 - filling pipe, 10 - nozzle, 11 - camera, 12 - mounting frame, 13 - fan, 14 - air outlet, 15 - filter screen, 151 - cylinder, 16 - mounting plate, 17 - spring telescopic rod, 18 - coating roller, 19 - lamp holder, 20 - illuminating lamp, 21 - toothed ring, 22 - motor two, 23 - gear. Specific embodiments

[0023] The following will describe in detail the preferred technical solutions of the present utility model with reference to the accompanying drawings.

[0024] A pipeline wall crack repair device based on trenchless pipeline repair technology, as Figures 1-6As shown in the figure, it includes a bracket 1, a guide rod 2 and a lead screw 3. The bracket 1 is the assembly carrier of this repair device and is placed in the excavation grooves at both ends of the pipeline to be repaired for use. The guide rod 2 and the lead screw 3 are arranged in parallel between the two brackets 1 and penetrate through the pipeline to be repaired. A motor 4 is fixedly installed on one of the brackets 1, and the output shaft of the motor 4 is connected to the lead screw 3. It also includes: a housing 5, which is disc-shaped and slidably arranged on the guide rod 2 and the lead screw 3; a baffle 51, fixedly connected to the housing 5 through a bearing 6, and the bearing 6 is clamped between the housing 5 and the baffle 51. The outer side wall of the bearing 6 is a chute and there are two through ports inside it. One through port of the bearing 6 is slidably connected to the guide rod 2, and the other through port of the bearing 6 is in threaded cooperation with the lead screw 3; a rotating frame 7, rotatably installed in the chute on the outer wall of the bearing 6, and the rotating frame 7 is composed of two inner and outer rings; a toothed ring 21, fixedly connected to one side of the inner ring of the rotating frame 7, and the bearing 6 is located inside the housing 5; a motor 22, fixedly connected to the side of the baffle 51 close to the housing 5; a gear 23, fixedly installed on the output shaft of the motor 22; a plurality of cameras 11, circumferentially arranged on the outer side wall of the baffle 51, and the cameras 11 are used to assist external personnel in detecting cracks on the inner wall of the pipe; a gluing member, arranged on the rotating frame 7 and used for gluing the cracks on the pipe wall; a smoothing member, arranged on the rotating frame 7 and used for smoothing the repair glue sprayed by the gluing member onto the inner wall of the pipe, so as to achieve the effect of repairing the cracks on the pipe wall based on the trenchless pipe repair technology.

[0025] As Figure 1 and Figure 2 shown, one end of the guide rod 2 is a splicing screw 201, and the other end of the guide rod 2 is provided with a threaded port adapted to the splicing screw 201. One end of the lead screw 3 is a splicing screw 301, and the other end of the lead screw 3 is also provided with a threaded port adapted to the splicing screw 301. Both the guide rod 2 and the lead screw 3 are continuously spliced by small segments. The operator first continuously splices the guide rod 2 and the lead screw 3 in the excavation grooves of the pipeline to be repaired, then penetrates them into the pipeline to be repaired, and finally installs the guide rod 2 and the lead screw 3 on the brackets 1 placed in the excavation grooves at both ends for use.

[0026] As Figures 3-6 shown, the gluing member includes a storage tank 8, a filling pipe 9 and a nozzle 10. The storage tank 8 is fixedly installed on the outer wall of the inner ring of the rotating frame 7. The storage tank 8 is a glue container and is internally provided with a liquid pumping pump. The filling pipe 9 penetrates through the outer ring side wall of the rotating frame 7 and communicates with the storage tank 8. The nozzle 10 is installed on the outer ring side wall of the rotating frame 7 and is communicated with the storage tank 8. The storage tank 8 provides glue to the nozzle 10 through its internally installed liquid pumping pump, so that the nozzle 10 sprays glue to repair the cracks in the pipe wall; the nozzle 10 is integrally fan-shaped, and the nozzle 10 can spray the glue in a fan shape onto the cracks on the inner wall of the pipe, so that the glue can more evenly cover the cracks on the inner wall of the pipe body when spraying, improving the gluing quality of the nozzle 10.

[0027] As shown in Figure 5 and Figure 6 shown, the spreading member includes a cylinder 151, a mounting plate 16, a spring telescopic rod 17 and a spreading roller 18. A plurality of cylinders 151 are provided and fixedly installed on the outer side of the inner ring of the rotating frame 7. The telescopic rods of the cylinders 151 all penetrate through the outer ring of the rotating frame 7 and are connected with a mounting plate 16. A spring telescopic rod 17 is fixedly connected to the mounting plate 16. The spring telescopic rod 17 has elasticity and a spreading roller 18 is installed at its end. The spreading roller 18 is used to spread the glue sprayed on the inner wall of the pipe evenly, so that the glue can be fully repaired into the cracks in the pipe wall.

[0028] As shown in Figures 3-5 shown, a drying member is provided on the rotating frame 7. The drying member includes a mounting frame 12, a fan 13 and an air outlet 14. A mounting frame 12 is also fixedly installed between the inner and outer rings of the rotating frame 7. A fan 13 is installed in the mounting frame 12. An air outlet 14 is opened at the port of the mounting frame 12 located outside the rotating frame 7. The fan 13 blows the air from the air outlet 14 of the mounting frame 12 onto the glue at the crack of the inner wall of the pipe, improving the drying efficiency of the glue; a filter screen 15 is provided at the air outlet 14 of the mounting frame 12. The filter screen 15 is used to block the dust in the pipe wall from entering the fan 13 in the mounting frame 12, so as to affect the normal use of the fan 13.

[0029] As shown in Figure 1 and Figure 6 shown, a circle of lamp holders 19 are circumferentially arranged on the outer wall of the baffle 51. The lamp holders 19 are arranged outside the camera 11. The camera 11 faces outwards towards the lamp holders 19. A plurality of lighting lamps 20 are installed on the lamp holders 19. The lighting lamps 20 are used to improve the clarity of the camera 11 to detect the splitting condition on the inner wall of the pipeline, improving the accuracy of operating and repairing the cracks in the pipeline wall.

[0030] First, place the bracket 1 in the dug groove at both ends of the pipe to be repaired, and then continuously splice the guide rod 2 and the screw rod 3 into the required length. Since one end of the guide rod 2 and the screw rod 3 are respectively spliced screw rod 1 201 and spliced screw rod 2 301, and the other end is provided with an adaptive threaded opening, the guide rod 2 and the screw rod 3 can be conveniently spliced and passed through the pipe and installed on the bracket 1 at the two locations. The rubber material is filled into the storage box 8 through the filling pipe 9 in advance, and then the motor 14 drives the screw rod 3 to rotate. The screw rod 3 drives the bearing 6 to move through the thread, thereby driving the shell 5, the baffle 51 and the rotating frame 7 to move along the guide rod 2 as a whole to the position to be repaired. At this time, the camera 11 located on the outside of the baffle 51 starts to work, and carefully inspects the inner wall of the pipe to determine the specific position and size of the crack. At the same time, the lighting lamp 20 on the lamp holder 19 provides sufficient light to ensure that the camera 11 can clearly capture the image, thereby improving the detection accuracy. Once the crack position in the pipe wall is determined, the motor 14 is turned off. The shell 5, the baffle plate 51 and the rotating frame 7 are stopped as a whole in the pipe to be repaired, and then the motor 22 is started. The output shaft of the motor 22 drives the gear 23 to rotate, and the gear 23 engages with the gear ring 21 to drive the entire rotating frame 7 to rotate around the slide groove on the outer wall of the bearing 6. The liquid pump in the storage box 8 starts to work, and the repair glue is delivered to the nozzle 10. The fan-shaped nozzle 10 sprays the glue evenly on the crack. At the same time, the cylinder 151 pushes the mounting plate 16 to extend outward, so that the spring telescopic rod 17 and the coating roller 18 connected thereto contact the inner wall of the pipe. The coating roller 18 rotates with the rotating frame 7 to smooth the glue just sprayed on, ensuring that the glue fully fills the crack. In order to accelerate the curing of the glue, the fan 13 in the mounting frame 12 starts to operate, and the air blown out from the air outlet 14 directly acts on the surface of the glue just applied, accelerating the drying speed of the glue. The design of the filter 15 can prevent dust from entering the fan 13, ensuring the long-term stable operation of the fan 13.

[0031] It should be understood that the above description is only for exemplary purposes and is not intended to limit the present invention. Those skilled in the art will understand that variations of the present invention will be included within the scope of the claims herein.

Claims

1. A pipe wall crack repair device based on trenchless pipe repair technology, comprising a bracket (1), a guide rod (2) and a lead screw (3). The guide rod (2) and the lead screw (3) are arranged in parallel between the two brackets (1) and penetrate into the pipe to be repaired. A first motor (4) is fixedly installed on one of the brackets (1), and the output shaft of the first motor (4) is connected to the lead screw (3). Characterized in that, further Comprising: A housing (5), which is disc-shaped and slidably arranged on the guide rod (2) and the lead screw (3); A baffle (51), fixedly connected to the housing (5) through a bearing (6). The bearing (6) is clamped between the housing (5) and the baffle (51). The outer side wall of the bearing (6) is a chute and there are two through openings inside it. One through opening of the bearing (6) is slidably connected to the guide rod (2), and the other through opening of the bearing (6) is in threaded cooperation with the lead screw (3); A rotating frame (7), rotatably installed in the chute on the outer wall of the bearing (6). The rotating frame (7) consists of two concentric rings; A gear ring (21), fixedly connected to one side of the inner ring of the rotating frame (7). The bearing (6) is located inside the housing (5); A second motor (22), fixedly connected to the side of the baffle (51) close to the housing (5); A gear (23), fixedly installed on the output shaft of the second motor (22); A plurality of cameras (11), circumferentially arranged on the outer side wall of the baffle (51); A glue applying member, arranged on the rotating frame (7) and used for gluing the pipe wall crack; A smoothing member, arranged on the rotating frame (7) and used for smoothing the repair glue sprayed by the glue applying member onto the inner wall of the pipe.

2. The wall crack repair device based on the trenchless pipeline repair technology according to claim 1, characterized in that, One end of the guide rod (2) is a splicing screw one (201), and the other end of the guide rod (2) is provided with a threaded port adapted to the splicing screw one (201). One end of the lead screw (3) is a splicing screw two (301), and the other end of the lead screw (3) is also provided with a threaded port adapted to the splicing screw two (301). The guide rod (2) and the lead screw (3) are both continuously spliced by small segments.

3. The wall crack repair device based on the trenchless pipeline repair technology according to claim 2, characterized in that, The glue applying member comprises a storage tank (8), a filling pipe (9) and a nozzle (10). The storage tank (8) is fixedly installed on the outer wall of the inner ring of the rotating frame (7). The storage tank (8) is a glue container and is internally provided with a liquid pumping pump. The filling pipe (9) penetrates through the outer ring side wall of the rotating frame (7) and communicates with the storage tank (8). The nozzle (10) is installed on the outer ring side wall of the rotating frame (7), and the nozzle (10) communicates with the storage tank (8). The storage tank (8) provides glue to the nozzle (10) through the liquid pumping pump installed inside it.

4. A pipe wall crack repair device based on trenchless pipe repair technology according to claim 3, characterized in that, The nozzle (10) is integrally fan-shaped, and the nozzle (10) can spray the glue in a fan shape onto the crack on the inner wall of the pipe.

5. The wall crack repair device based on the trenchless pipeline repair technology according to claim 4, characterized in that, The spreading member includes a cylinder (151), a mounting plate (16), a spring telescopic rod (17), and a spreading roller (18). A plurality of cylinders (151) are provided and fixedly installed on the outer side of the inner ring of the rotating frame (7). The telescopic rods of the cylinders (151) all pass through the outer ring of the rotating frame (7) and are connected to a mounting plate (16). A spring telescopic rod (17) is fixedly connected to the mounting plate (16). The spring telescopic rod (17) is elastic and a spreading roller (18) is installed at its end. The spreading roller (18) is used to spread the glue sprayed on the inner wall of the pipe evenly.

6. The wall crack repair device based on the trenchless pipeline repair technology according to claim 5, characterized in that, An air drying member is provided on the rotating frame (7). The air drying member includes a mounting frame (12), a fan (13), and an air outlet (14). A mounting frame (12) is also fixedly installed between the inner and outer rings of the rotating frame (7). A fan (13) is installed in the mounting frame (12). An air outlet (14) is opened at the port of the mounting frame (12) located outside the rotating frame (7).

7. A pipe wall crack repair device based on trenchless pipe repair technology according to claim 6, characterized in that, A filter screen (15) is provided at the air outlet (14) of the mounting frame (12). The filter screen (15) is used to block dust inside the pipe wall from entering the fan (13) inside the mounting frame (12).

8. A pipe wall crack repair device based on trenchless pipe repair technology according to claim 7, characterized in that, A circle of lamp holders (19) is circumferentially arranged on the outer wall of the baffle (51). The lamp holders (19) are arranged outside the camera (11). The camera (11) faces outward towards the lamp holders (19), and a plurality of lighting lamps (20) are installed on the lamp holders (19).

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