Environment-friendly water supply and drainage pipeline repairing device

Abstract

The application provides an environment-friendly water supply and drainage pipeline repairing device, and relates to the technical field of pipeline connection repairing.The environment-friendly water supply and drainage pipeline repairing device comprises a pipeline robot, a rotating head rotatably arranged on the front side of the pipeline robot, and an outer wall repairing assembly arranged on the rotating head and used for repairing the outer wall of the pipeline.The outer wall repairing assembly comprises a plurality of expansion plates movably arranged on the rotating head at equal angles, a plurality of insertion tubes for mortar spraying are arranged on the expansion plates, a plurality of arc-shaped pipes are communicatively arranged on the insertion tubes, the plurality of arc-shaped pipes are unfolded to form a complete ring, and when the pipeline is repaired, the plurality of arc-shaped pipes and the insertion tubes are separated from the rotating head to form a keel frame in the mortar, so that the inside and the outside of the pipeline are simultaneously repaired, the subsequent corrosion of the pipeline is reduced, and the service life of the pipeline is prolonged.

Description

Technical Field

[0001] This invention relates to the field of pipeline connection and repair technology, and in particular to an environmentally friendly water supply and drainage pipeline repair device. Background Technology

[0002] In municipal water supply and drainage networks, plastic pipes are generally used. When plastic pipes are in use, external corrosion is one of the main causes of thinning of the pipe wall, structural failure, and even road collapse.

[0003] Traditional repair methods often involve excavation and pipe replacement or lining repair. However, excavation operations have a significant impact on traffic and the environment, while conventional lining repair can only treat the inner wall of the pipe and cannot prevent the continuous intrusion of external corrosive media. As a result, the service life of the repaired pipe is short, leading to further damage. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an environmentally friendly water supply and drainage pipeline repair device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: An environmentally friendly water supply and drainage pipeline repair device includes: a pipeline robot, and a rotating head rotatably disposed on the front side of the pipeline robot. It also includes an outer wall repair component disposed on the rotating head for discharging pipeline outer wall repair materials. The outer wall repair component includes multiple expansion plates movably disposed at equal angles on the rotating head. Multiple insertion tubes for mortar spraying are disposed on the expansion plates, and multiple arc-shaped tubes are connected to the insertion tubes. The multiple arc-shaped tubes unfold to form a complete ring. During pipeline repair, the multiple arc-shaped tubes and insertion tubes detach from the rotating head, forming a framework in the mortar. The pipeline robot is equipped with an inner wall repair component for supporting the repair material on the inner wall of the drainage pipe. After the inner wall repair is completed, the inner wall repair component moves the inner wall repair material to the expansion plate, which lifts it up to repair the inner wall of the pipe. The inner wall repair component includes a support plate that is slidably mounted on the pipeline robot at equal angles for supporting the inner wall repair material.

[0006] Preferably, the expansion plate is hollow, the arc-shaped tube is slidably disposed inside the insertion tube, the arc-shaped tube forms a T-shape with the insertion tube when it is unfolded, and the two are interconnected, the top of the insertion tube is conical, and the tail is movably engaged with the expansion plate, and a first airbag for the arc-shaped tube to be pushed out is provided between the insertion tube and the arc-shaped tube, the first airbag being interconnected with the expansion plate.

[0007] Preferably, the expansion plate has an arc-shaped slot for locking, and an arc-shaped interface is provided on the upper side of the slot. A flexible ring is provided at the bottom of the insertion tube, and the bottom of the insertion tube is movably locked into the arc-shaped interface.

[0008] Preferably, the pipeline robot is equipped with a delivery pipe, one end of which extends to the outside of the drain pipe, and the delivery pipe is interconnected with multiple insertion pipes.

[0009] Preferably, the rotating head is provided with a plurality of second airbags for lifting the expansion plate.

[0010] Preferably, the inner wall repair assembly includes multiple guide slots formed on the pipeline robot, the guide slots being formed between every two expansion plates, and a support plate being slidably disposed within the guide slots, with a third airbag provided on one side of the guide slots for pushing the support plate to move.

[0011] Preferably, the pipeline robot is provided with a flow guiding component for airflow delivery to the second airbag. The flow guiding component includes an annular air box disposed on the delivery pipe, and the annular air box includes two rotatably disposed semi-rings. The rotating head has multiple airflow channels that communicate with the expansion plate and the second airbag. The airflow channels are Y-shaped, and two solenoid valves are disposed on the airflow channels. The two solenoid valves are disposed at the communication points with the second airbag and the expansion plate. One end of the airflow channel communicates with the annular air box.

[0012] Preferably, the pipeline robot is provided with a drive assembly for driving the rotating head to rotate and generating airflow. The drive assembly includes a gear ring fixedly mounted on the rotating head. The pipeline robot is provided with a drive motor, and the output shaft end of the drive motor is provided with a one-way intermittent gear that meshes with the gear ring. A cam is also provided on the output shaft of the drive motor. The pipeline robot is provided with an airflow section for supplying air to the expansion plate, the second airbag, and the third airbag.

[0013] Preferably, the airflow section includes a fixed cylinder fixedly installed inside the pipeline robot, and a piston rod is slidably installed inside the fixed cylinder. A piston plate is provided at the end of the piston rod, and the piston rod is in movable contact with a cam. Springs are sleeved on the outer sides of the third airbag, the piston rod, and the second airbag. The fixed cylinder is interconnected with the annular air box, and the connection point is located behind the piston plate. Two hoses are provided on the fixed cylinder, and the hoses are located in front of the piston plate. Two one-way valves with opposite airflow directions are provided at the connection points of the hoses, and one of the hoses is interconnected with the third airbag.

[0014] Compared with the prior art, the beneficial effects of the present invention are: After the insertion tube pierces the pipe wall, the arc-shaped tube unfolds to form a T-shaped structure. Mortar is then directly poured onto the corroded area of ​​the pipe's outer wall, achieving in-situ protection and repair of the pipe's exterior without excavating the ground. This effectively isolates the pipe from contact with soil and groundwater, significantly extending the corrosion resistance life of the repaired pipe. Simultaneously, after repair, the arc-shaped tube and insertion tube remain in the mortar, forming a framework that effectively increases the mortar's strength. Furthermore, the automatic disengagement of the insertion tube from the expansion plate and the flush end design during rotation, combined with the rotating head's grinding function, allow for direct internal wall grinding pretreatment without removing the equipment after external wall repair. This achieves seamless integration of external and internal wall repair, significantly shortening the time for a single repair operation. During grinding, the exposed pores after the insertion tube disengages are used for dust extraction, promptly removing grinding dust and ensuring a clean internal wall surface for subsequent resin bonding. This guarantees the adhesion strength between the resin material and the pipe's inner wall, preventing issues such as weak adhesion or detachment caused by dust. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the front-view structure proposed in this invention; Figure 2 This is a schematic diagram of the rear-view structure proposed in this invention; Figure 3 This is a schematic diagram of the rear-view cross-sectional structure proposed in this invention; Figure 4 for Figure 3 Enlarged view of point A in the middle; Figure 5 This is a schematic diagram of the internal structure from a partial upper viewpoint proposed in this invention; Figure 6 This is a schematic diagram of the partial right-side view structure proposed in this invention. Figure 1 ; Figure 7 This is a schematic diagram of the partial right-side view structure proposed in this invention. Figure 2 ; Figure 8 For the present invention Figure 7 Enlarged view of point B in the middle; Figure 9 This is a schematic diagram of the partial right-side cross-sectional structure proposed in this invention; Figure 10 This is a schematic diagram of the internal structure from a partial left-side perspective proposed in this invention; Figure 11 This is a schematic diagram of the internal structure from a partial right-side perspective proposed in this invention; Figure 12 Workflow diagram Figure 1 ; Figure 13 Workflow diagram Figure 2 .

[0016] In the diagram: 1. Pipeline robot; 2. Rotating head; 21. Delivery pipe; 3. Outer wall repair component; 31. Expansion plate; 32. Insertion tube; 33. Arc-shaped tube; 34. First airbag; 35. Snap-fit ​​groove; 36. Second airbag; 4. Inner wall repair component; 41. Support plate; 42. Guide groove; 43. Third airbag; 5. Flow guiding component; 51. Annular air box; 52. Airflow channel; 6. Drive component; 61. Gear ring; 62. Drive motor; 63. One-way intermittent gear; 64. Cam; 65. Airflow section; 66. One-way valve. Detailed Implementation

[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0018] The terms used in this invention, such as "upper," "lower," "left," "right," "middle," and "one," are merely for clarity of description and are not intended to limit the scope of the invention. Any changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention.

[0019] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0020] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0021] In the description of this specification, the references to terms such as "embodiment," "one embodiment," "some implementations," "exemplary," and "one implementation," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or implementation is included in at least one embodiment or implementation of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or implementation. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or implementations.

[0022] The terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature.

[0023] Combination Figures 1-13 This invention provides an environmentally friendly water supply and drainage pipeline repair device, including: a pipeline robot 1, and a rotating head 2 rotatably disposed on the front side of the pipeline robot 1. It also includes an outer wall repair component 3 disposed on the rotating head 2 for discharging pipeline outer wall repair. The outer wall repair component 3 includes multiple expansion plates 31 movably disposed at equal angles on the rotating head 2. Multiple insertion tubes 32 for mortar spraying are disposed on the expansion plates 31, and multiple arc-shaped tubes 33 are connected to the insertion tubes 32. The multiple arc-shaped tubes 33 unfold to form a complete ring. When the pipeline is repaired, the multiple arc-shaped tubes 33 and insertion tubes 32 detach from the rotating head 2 and form a skeleton in the mortar. The pipeline robot 1 is equipped with an inner wall repair component 4 for supporting the repair material on the inner wall of the drain pipe. After the inner wall repair is completed, the inner wall repair component 4 moves the inner wall repair material to the expansion plate 31, where the expansion plate 31 lifts it up to repair the inner wall of the pipe. The inner wall repair component 4 includes a support plate 41 that is equidistantly slidably mounted on the pipeline robot 1 for supporting the inner wall repair material; Reference Figure 1 , Figure 12 and Figure 13 The pipe robot 1 is placed in the pipe that needs repair, and its movement is controlled to the repair location. The number of insertion tubes 32 can be adjusted according to the repair area. Since the pipe is annular, if half of the ring needs repair, the number of insertion tubes 32 can be adjusted based on the repair area. Initially, the arc-shaped tube 33 is located inside the insertion tubes 32. Therefore, when the expansion plate 31 expands, the resistance is minimal when the insertion tubes 32 pass through the pipe. After the insertion tubes 32 pass through the pipe, the arc-shaped tube 33 is opened, forming a T-shape with the insertion tubes 32, and the arc-shaped tube 33 adheres to the outer wall of the pipe. Subsequently, the pipe is moved through the pipe. The delivery pipe 21 injects mortar into the rotating head 2. At this time, the mortar is sprayed out through the holes on the arc-shaped pipe 33 and the insertion pipe 32, so that the mortar forms a protective layer on the outer wall of the pipe, isolating the pipe from corrosive materials and preventing the pipe from being corroded again after subsequent repairs. After the outer repair is completed, the rotating head 2 is rotated to separate the expansion plate 31 and the insertion pipe 32. At the same time, the support plate 41 moves the internal repair material to the expansion plate 31, and the expansion plate 31 opens again, attaching the repair material to the inside of the pipe. This completes the repair of both the inside and outside of the pipe at the same time, reducing subsequent corrosion of the pipe and extending its service life.

[0024] Preferred, Reference Figure 7 , Figure 8 , Figure 9The expansion plate 31 is hollow, and the arc-shaped tube 33 is slidably disposed inside the insertion tube 32. When the arc-shaped tube 33 is unfolded, it forms a T-shape with the insertion tube 32 and the two are interconnected. The top of the insertion tube 32 is conical, and the tail is movably engaged with the expansion plate 31. A first air bladder 34 is provided between the insertion tube 32 and the arc-shaped tube 33 for the arc-shaped tube 33 to be pushed out. The first air bladder 34 is interconnected with the expansion plate 31. When the insertion tube 32 extends out of the drain pipe, the first air bladder 34 expands and pushes out the arc-shaped tube 33, so that the arc-shaped tube 33 and the insertion tube 32 form a T-shape, which facilitates the pouring of mortar.

[0025] Preferred, Reference Figure 7 and Figure 8 An arc-shaped groove 35 is provided on the expansion plate 31, and an arc-shaped locking slot 35 is provided on the upper side of the locking slot 35. A flexible ring is provided at the bottom of the insertion tube 32, and the bottom of the insertion tube 32 is movably locked in the arc-shaped locking slot. When the arc-shaped tube 33 is unfolded, the mortar gradually flows on the outside of the drainage pipe. At this time, the rotating head 2 is rotated. When the rotating head 2 rotates, the bottom of the insertion tube 32 disengages from the arc-shaped locking slot. At the same time, because the inner wall of the locking groove 35 is arc-shaped, As the rotating head 2 rotates, the insertion tube 32 not only disengages from the locking groove 35, but the inner wall of the locking groove 35 also presses against the insertion tube 32, causing the insertion tube 32 to move a certain distance again, so that the surface of the insertion tube 32 is flush with the inner surface of the drain pipe. This prevents the insertion tube 32 from damaging the rotating head 2 when it rotates. When the rotating head 2 rotates, it can fully polish the inner wall of the drain pipe, so as to increase the adhesion between the repair material and the inner wall of the drain pipe when repairing the inner wall.

[0026] Preferred, Reference Figure 3 The pipeline robot 1 is equipped with a delivery pipe 21. One end of the delivery pipe 21 extends to the outside of the drainage pipe, and the delivery pipe 21 is interconnected with multiple insertion pipes 32. Mortar can be delivered directly from the outside through the delivery pipe 21 into the insertion pipes 32, which facilitates the rapid laying of mortar.

[0027] Preferred, Reference Figure 4 The rotating head 2 is equipped with multiple second airbags 36 for lifting the expansion plate 31. When the multiple second airbags 36 inflate, they lift the expansion plate 31, making it easier for the insertion tube 32 to puncture the drain pipe and repair the outside of the drain pipe. When the second airbags 36 deflate, the expansion plate 31 is reset.

[0028] Preferred, Reference Figure 1 , Figure 6 and Figure 13The inner wall repair component 4 includes multiple guide grooves 42 formed on the pipe robot 1. The guide grooves 42 are formed between every two expansion plates 31, and a support plate 41 is slidably disposed within the guide grooves 42. A third airbag 43 is provided on one side of the guide groove 42 for pushing the support plate 41 to move. When the pipe robot 1 enters the pipe, it brings the annular material made of polyester resin into the pipe. At this time, the material is supported by multiple support plates 41, which are L-shaped, while one side of the expansion plate 31 is arc-shaped. After the external repair of the drain pipe is completed... The third airbag 43 inflates, pushing the support plate 41 to slide within the guide groove 42. Since the guide groove 42 is located between every two expansion plates 31, when the support plate 41 moves between the two expansion plates 31, one side of the expansion plate 31 is arc-shaped. At this time, the material can be pushed onto the expansion plate 31 by relying on the convex edge of the support plate 41. At the same time, the expansion plate 31 lifts up the polyester resin material, and the support plate 41 resets. Then the expansion plate 31 unfolds, adhering the polyester resin to the inner wall of the drain pipe. Simultaneously, heating causes the material to solidify, thus completing the pipe repair.

[0029] Preferred, Reference Figure 3 , Figure 4 and Figure 11 The pipeline robot 1 is equipped with a flow guiding component 5 for airflow delivery to the second airbag 36. The flow guiding component 5 includes an annular air box 51 mounted on the delivery pipe 21, and the annular air box 51 comprises two rotatably mounted semi-rings. The rotating head 2 has multiple airflow channels 52 that communicate with the expansion plate 31 and the second airbag 36. The airflow channels 52 are Y-shaped and equipped with two solenoid valves located at the connection points between the airflow channels 52 and the second airbag 36 and the expansion plate 31. One end of the airflow channel 52 communicates with the annular air box 51. When the rotating head 2 rotates, the two semi-rings rotate simultaneously relative to each other, ensuring a continuous gas supply. When the equipment repairs the outer wall of the drain pipe, the gas directly enters the expansion plate 31. The expansion plate 31 enters the first airbag 34 and the second airbag 36 respectively, causing the arc-shaped tube 33 to be pushed out and the expansion plate 31 to unfold. After the outer wall repair is completed, in order to fit the polyester resin material on the outside of the expansion plate 31, the second airbag 36 needs to be deflated first, so that the expansion plate 31 is gradually retracted. When the insertion tube 32 leaves the expansion plate 31, the connection between the expansion plate 31 and the first airbag 34 is open. Therefore, the airflow needs to directly enter the second airbag 36. That is to say, at this time, the solenoid valve connecting the snap-fit ​​groove 35 and the second airbag 36 is opened, allowing the airflow to directly enter the second airbag 36, which can inflate the second airbag 36, thereby completing the expansion of the resin material and ensuring the normal operation of the expansion plate 31.

[0030] Preferred, Reference Figure 5 , Figure 10 and Figure 11The pipeline robot 1 is equipped with a drive assembly 6 for driving the rotating head 2 and generating airflow. The drive assembly 6 includes a gear ring 61 fixedly mounted on the rotating head 2. The pipeline robot 1 is equipped with a drive motor 62, and the output shaft end of the drive motor 62 is equipped with a one-way intermittent gear 63 that meshes with the gear ring 61. A cam 64 is also provided on the output shaft of the drive motor 62. The pipeline robot 1 is equipped with an airflow section 65 for supplying air to the expansion plate 31, the second airbag 36, and the third airbag 43. The drive motor 62 has two working states: forward rotation and reverse rotation. When the drive motor 62 rotates forward, the one-way intermittent gear 63 does not rotate, but the cam 64 rotates. The cam 64 compresses the airflow section 65, causing gas to enter the expansion plate 31, thereby inflating the second airbag 36 and pushing the insertion tube 32 to puncture the drain pipe. At the same time, the first airbag 34 is inflated, causing the arc-shaped tube 33 to extend. When the external repair... After the repair is completed, the drive motor 62 rotates in the reverse direction. At the same time, the one-way intermittent gear 63 rotates simultaneously. When the one-way intermittent gear 63 meshes with the gear ring 61, the gear ring 61 drives the rotating head 2 to rotate. At this time, the rotating head 2 will polish the inner wall of the pipe to facilitate the subsequent bonding of the resin material. When the rotating head 2 rotates, the third airbag 43 expands simultaneously, pushing the support plate 41 to move towards the rotating head 2. Since the one-way intermittent gear 63 has intermittent teeth, when the one-way intermittent gear 63 disengages from the gear ring 61 for the last time, the number of rotations of the drive motor 62 compresses the gas generated by the airflow section 65, which just pushes the support plate 41 between the two expansion plates 31, thereby completing the replacement of the resin material. Then the third airbag 43 deflates and resets, and the drive motor 62 is controlled to rotate forward again. The gas re-enters the second airbag 36, causing the expansion plate 31 to unfold, thus completing the repair of the inner wall of the pipe with the resin material.

[0031] Preferred, Reference Figure 10 and Figure 11The airflow section 65 includes a fixed cylinder fixedly installed inside the pipeline robot 1, and a piston rod slidably installed inside the fixed cylinder. A piston plate is installed at the end of the piston rod, and the piston rod is in contact with the cam 64. Springs are sleeved on the outer sides of the third airbag 43, the piston rod, and the second airbag 36. The fixed cylinder is interconnected with the annular air box 51, and the connection point is located behind the piston plate. Two hoses are installed on the fixed cylinder, and the hoses are located in front of the piston plate. Two one-way valves 66 with opposite airflow directions are installed at the connection of the hoses, and one of the hoses is interconnected with the third airbag 43. When the drive motor 62 rotates in the forward direction, the piston rod is squeezed, and the gas in the fixed cylinder is forced into the guide assembly 5. Through the guide assembly 5, the gas enters the expansion plate 31, and at the same time, the gas enters the second airbag 36 and the first airbag 34, thereby completing the expansion of the expansion plate 31 and the extension of the arc-shaped tube 33. When the drive motor 62 rotates in the reverse direction, the rotating head 2 grinds the inner wall of the pipe, and at this time, the two airbags on the fixed cylinder are in contact with the cam 64. The hose has one inlet and one outlet, allowing for continuous inflation of the third airbag 43. This causes the third airbag 43 to gradually push the support plate 41. Because the piston plate is constantly moving, and its front side is in an inlet state, the insertion tube 32 is detached from the expansion plate 31. The air hole on the expansion plate 31 that connects to the first airbag 34 is exposed. Therefore, when the piston plate inhales, it can absorb the fly ash generated by the rotating head 2 during grinding through this air hole. At the same time, the airflow generated can clean the grinding surface, ensuring the subsequent resin adhesion. The gas flow pattern in the equipment is as follows: for external repairs, air is first supplied to the second airbag 36 to expand the expansion plate 31, and then air is supplied to the first airbag 34 to push out the arc tube 33. For internal repairs, after the rotating head 2 finishes grinding, the second airbag 36 is deflated to facilitate the placement of the resin material, and the third airbag 43 is supplied with air to facilitate the movement of the resin material towards the expansion plate 31. Then, the second airbag 36 is inflated to facilitate the unfolding of the resin material and its adhesion to the inner wall of the pipe.

[0032] Working principle: The pipeline robot 1 is placed inside the drain pipe to be repaired and moved to the damaged location. The drive motor 62 rotates forward, and the cam 64 rotates and squeezes the piston rod, causing the piston plate to move within the fixed cylinder. Compressed air enters the second airbag 36 and the expansion plate 31 through the annular air box 51 and the Y-shaped airflow channel 52 in the rotating head 2. The second airbag 36 expands, pushing the expansion plate 31 outward. The insertion tube 32 at the end of the expansion plate 31 pierces the pipe wall and extends out of the pipe. At the same time, gas enters the first airbag 34 between the insertion tube 32 and the arc-shaped tube 33. The first airbag 34 expands, pushing the arc-shaped tube 33 out from the front end of the insertion tube 32. The arc-shaped tube 33 opens and forms a T-shaped structure with the insertion tube 32. The external delivery pipe 21 pumps mortar into the insertion tube 32, and a mortar protective layer is formed on the outer wall of the pipe through the nozzles on the arc-shaped tube 33.

[0033] After the outer wall repair is completed, the drive motor 62 reverses. The one-way intermittent gear 63 drives the gear ring 61 on the rotating head 2 to rotate. When the rotating head 2 rotates, the bottom of the insertion tube 32 disengages from the U-shaped retaining groove 35 of the expansion plate 31. The inner wall of the retaining groove 35 presses the insertion tube 32 so that its end face is flush with the inner wall of the pipe. The rotating head 2 continues to rotate and grind the inner wall of the pipe, while the piston rod continues to reciprocate under the action of the cam 64. The negative pressure and airflow generated on the front side of the piston plate draw the grinding dust into the expansion plate 31 through the exposed air holes after the insertion tube 32 disengages from the expansion plate 31, thus cleaning the grinding surface.

[0034] During the reverse rotation of the drive motor 62, the fixed cylinder draws air through one of the hoses, while the other hose intermittently supplies air to the third airbag 43. The third airbag 43 expands, pushing the support plate 41 to slide along the guide groove 42, pushing the annular polyester resin repair material from the support plate 41 to the outside of the retracted expansion plate 31. When the drive motor 62 rotates forward again, the second airbag 36 re-inflates, and the expansion plate 31 unfolds, pressing the polyester resin material tightly against the inner wall of the pipe. Heating then cures the resin, completing the inner wall repair.

[0035] While the present invention has been disclosed above, its scope of protection is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the scope of protection of the present invention.

Claims

1. An environmentally friendly water supply and drainage pipeline repair device, comprising: The pipeline robot (1) and the rotating head (2) rotatably disposed on the front side of the pipeline robot (1) are characterized in that they further include an outer wall repair component (3) disposed on the rotating head (2) for discharging pipeline outer wall repair, the outer wall repair component (3) including a plurality of expansion plates (31) movably disposed at equal angles on the rotating head (2), a plurality of insertion tubes (32) for mortar spraying are disposed on the expansion plates (31), and a plurality of arc-shaped tubes (33) are connected to the insertion tubes (32), the plurality of arc-shaped tubes (33) unfold to form a complete ring, and when the pipeline is repaired, the plurality of arc-shaped tubes (33) and insertion tubes (32) detach from the rotating head (2) and form a keel in the mortar; The pipeline robot (1) is equipped with an inner wall repair component (4) for supporting the inner wall repair material of the drainage pipe. After the inner wall repair is completed, the inner wall repair component (4) moves the inner wall repair material to the expansion plate (31) and the expansion plate (31) lifts it up to repair the inner wall of the pipe. The inner wall repair component (4) includes a support plate (41) that is slidably disposed on the pipeline robot (1) at equal angles for supporting the inner wall repair material.

2. The environmentally friendly water supply and drainage pipeline repair device according to claim 1, characterized in that, The expansion plate (31) is hollow, and the arc-shaped tube (33) is slidably disposed inside the insertion tube (32). When the arc-shaped tube (33) is unfolded, it forms a T-shape with the insertion tube (32) and the two are interconnected. The top of the insertion tube (32) is conical, and the tail is movably engaged with the expansion plate (31). A first airbag (34) for the arc-shaped tube (33) to be pushed out is provided between the insertion tube (32) and the arc-shaped tube (33). The first airbag (34) is interconnected with the expansion plate (31).

3. The environmentally friendly water supply and drainage pipeline repair device according to claim 2, characterized in that, The expansion plate (31) has an arc-shaped slot (35) and an arc-shaped interface on the upper side of the slot (35). The bottom of the insertion tube (32) is provided with a flexible ring and the bottom of the insertion tube (32) is movably engaged in the arc-shaped interface.

4. The environmentally friendly water supply and drainage pipeline repair device according to claim 3, characterized in that, The pipeline robot (1) is equipped with a delivery pipe (21), one end of which extends to the outside of the drain pipe, and the delivery pipe (21) is interconnected with multiple insertion pipes (32).

5. The environmentally friendly water supply and drainage pipeline repair device according to claim 4, characterized in that, The rotating head (2) is provided with a plurality of second airbags (36) for the expansion plate (31) to lift.

6. The environmentally friendly water supply and drainage pipeline repair device according to claim 5, characterized in that, The inner wall repair component (4) includes multiple guide grooves (42) formed on the pipeline robot (1), the guide grooves (42) being formed between every two expansion plates (31), and the support plate (41) being slidably disposed in the guide grooves (42), and a third airbag (43) for pushing the support plate (41) to move is provided on one side of the guide grooves (42).

7. The environmentally friendly water supply and drainage pipeline repair device according to claim 6, characterized in that, The pipeline robot (1) is equipped with a flow guide assembly (5) for airflow delivery to the second airbag (36). The flow guide assembly (5) includes an annular air box (51) on the delivery pipe (21), and the annular air box (51) includes two rotatably arranged semi-rings. The rotating head (2) is provided with multiple airflow channels (52) that communicate with the expansion plate (31) and the second airbag (36). The airflow channels (52) are Y-shaped. Two solenoid valves are provided on the airflow channels (52). The two solenoid valves are located at the connection between the second airbag (36) and the expansion plate (31). One end of the airflow channel (52) communicates with the annular air box (51).

8. The environmentally friendly water supply and drainage pipeline repair device according to claim 7, characterized in that, The pipeline robot (1) is provided with a drive assembly (6) for driving the rotating head (2) to rotate and generating airflow. The drive assembly (6) includes a gear ring (61) fixedly mounted on the rotating head (2). The pipeline robot (1) is provided with a drive motor (62), and the output shaft end of the drive motor (62) is provided with a one-way intermittent gear (63) that meshes with the gear ring (61). The output shaft of the drive motor (62) is also provided with a cam (64). The pipeline robot (1) is provided with an airflow section (65) for supplying air to the expansion plate (31), the second airbag (36), and the third airbag (43).

9. The environmentally friendly water supply and drainage pipeline repair device according to claim 8, characterized in that, The airflow section (65) includes a fixed cylinder fixedly installed inside the pipeline robot (1), and a piston rod is slidably installed inside the fixed cylinder. A piston plate is installed at the end of the piston rod, and the piston rod is in contact with the cam (64). Springs are sleeved on the outside of the third airbag (43), the piston rod, and the second airbag (36). The fixed cylinder is in communication with the annular air box (51), and the communication point is located behind the piston plate. Two hoses are installed on the fixed cylinder, and the hoses are located in front of the piston plate. Two one-way valves (66) with opposite airflow directions are installed at the connection of the hoses, and one of the hoses is in communication with the third airbag (43).

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