Anti-falling ultraviolet light curing sewage pipe lining repairing device

Abstract

The invention discloses an anti-falling ultraviolet light curing sewage pipe lining repairing device which comprises a main body, the front end of the main body is fixedly connected with an air bag capable of expanding and shrinking, and an inflation pipeline is arranged in the main body or on the outer side of the main body in the axial direction. The front end of the inflation pipeline is communicated with the air bag in a sealed mode, the rear end of the inflation pipeline is connected with an inflation end arranged at the rear end of the body in a sealed mode, and the inflation end is connected with a pump body. A UV lamp set is fixedly installed in the main body in the axial direction, a plurality of light transmitting holes are formed in the outer wall of the main body in the length direction of the main body, the light transmitting holes and the UV lamp set are correspondingly arranged in the axial direction so as to achieve the light transmitting effect, and a plurality of roller assemblies are rotationally connected to the peripheral face of the main body so as to assist the main body in moving in the pipe body.

Description

Technical Field

[0001] This invention belongs to the field of drainage pipe network repair technology, and in particular relates to a repair device for sewage pipe lining that prevents detachment and is cured by ultraviolet light. Background Technology

[0002] As urban drainage pipe networks age, sewage pipes commonly suffer from internal wall corrosion and wear, cracks and leaks, misaligned joints, and sediment buildup, affecting transport capacity and potentially causing sewage seepage and secondary pollution. To minimize the disruption to road traffic, surrounding buildings, and the environment caused by excavation repairs, trenchless lining repair methods are widely adopted in engineering projects. Among these, ultraviolet (UV) curing lining repair involves placing a resin-containing lining into the pipe and then curing it with UV light to form a continuous lining layer, achieving structural reinforcement and sealing repair. This method offers advantages such as short construction time and minimal on-site disturbance. However, an existing UV curing light chain device for pipe repair (publication number: CN220851247U) has the following drawbacks and requires further improvement.

[0003] Traditional UV curing equipment mainly consists of traction-type or single-stage curing devices that rely on walking to advance and cure within the pipe. When there is water accumulation, silt, attached dirt, or local deformation within the pipe, voids, wrinkles, or areas of non-adhesion can easily form between the lining and the original pipe wall. After curing, local detachment, shifting, and flipping can occur under the action of water flow, pressure fluctuations, and temperature stress, leading to a decrease in the sealing performance of the repair layer, recurrence of leakage, or the formation of new slag spots and blockage risks, increasing rework and maintenance costs.

[0004] Traditional devices rely on replacing the entire set of equipment or temporary extension solutions to adapt to different pipe lengths. They lack a modular series structure, resulting in low assembly efficiency and poor alignment consistency during long-distance repairs. The irradiation position, propulsion posture and status monitoring during the curing process are difficult to coordinate and be consistent, which can easily lead to problems such as uneven irradiation and fluctuations in construction quality. Summary of the Invention

[0005] The purpose of this invention is to overcome the problems of the prior art by disclosing an anti-detachment ultraviolet light curing sewage pipe lining repair device.

[0006] The objective of this invention is achieved through the following technical solution: A UV-cured anti-detachment sewage pipe liner repair device, comprising a main body, An inflatable airbag is fixedly connected to the front end of the main body. An inflation tube is arranged axially inside or outside the main body. The front end of the inflation tube is sealed and connected to the airbag. The rear end of the inflation tube is sealed and connected to the inflation end located at the rear end of the main body. The inflation end is connected to the pump body. A UV lamp assembly is fixedly installed axially inside the main body. Several light-transmitting holes are opened on the outer wall of the main body along its length, and the light-transmitting holes are arranged axially corresponding to the UV lamp assembly to achieve light transmission. Several roller assemblies are rotatably connected to the outer peripheral surface of the main body to assist the main body in moving within the tube.

[0007] According to a preferred embodiment, a control module is fixedly installed on the middle of the outer side of the main body, and a detection sensor is fixedly installed on the outer wall of the main body near the front end. The control module is electrically connected to the UV lamp group and the detection sensor respectively.

[0008] According to a preferred embodiment, the detection sensor is disposed on the outer wall of the main body near the front end and located near the connection between the airbag and the main body. The detection sensor is connected to the main body by a threaded connection or an embedded fixing method.

[0009] According to a preferred embodiment, the main body is composed of several segments, and each segment is connected in series with a connecting member. The connecting member has a through air passage and is connected to the inflation pipe. At the same time, the connecting member has an electrical connection channel.

[0010] According to a preferred embodiment, the series connector is detachably connected and fixed to each segment within the main body.

[0011] According to a preferred embodiment, the inflation pipeline is arranged axially along the main body and at least one section is located inside the main body, and is coaxially connected to the air passage connection channel in the series connector. The inflation pipeline is sealed and connected to the airbag and the inflation end.

[0012] According to a preferred embodiment, the UV lamp group is arranged along the axial direction of the main body and is coaxial with the main body. The axial length of the UV lamp group is not less than the axial coverage length of the light-transmitting hole array on the main body, and the light-transmitting holes and the UV lamp group are equidistantly arranged in the axial direction.

[0013] According to a preferred embodiment, the light-transmitting holes are circular holes arranged in rows along the length of the main body. The diameter of a single light-transmitting hole is 4mm to 12mm, the center-to-center distance between adjacent light-transmitting holes is 10mm to 30mm, and the light-transmitting holes form at least five rows of hole arrays in the circumferential direction of the main body.

[0014] According to a preferred embodiment, the roller assemblies are evenly distributed along the circumference of the main body and the number is not less than three sets, and the roller assemblies are arranged in at least two rows in the axial direction of each segment of the main body.

[0015] The aforementioned main solution of the present invention and its various further alternative solutions can be freely combined to form multiple solutions, all of which are solutions that can be adopted and are claimed by the present invention. Those skilled in the art, after understanding the solution of the present invention, will realize that there are many combinations based on existing technology and common knowledge, all of which are technical solutions to be protected by the present invention, and will not be exhaustively listed here.

[0016] The beneficial effects of this invention are: This application utilizes an inflatable airbag at the front end of the main body, which is inflated and deflated by a pump through an inflation pipe. This allows the airbag to exert controllable radial expansion and compression, as well as provide leading support during operation. Combined with several roller assemblies rotatably connected to the outer circumference of the main body, stable rolling guidance is achieved. This reduces the device's attitude deviation during advancement, even in the presence of water accumulation, silt, attached contaminants, or local deformation within the pipe. It also provides continuous compaction and wall-adhering constraint to the inner lining interface, thereby suppressing the formation of voids, wrinkles, and areas of non-adherence. Simultaneously, axially arranged UV lamps inside the main body irradiate along the entire process through light-transmitting holes on the outer wall. With the cooperation of a control module and detection sensors, the curing process can be monitored and controlled, reducing the probability of local detachment, shifting, and edge flipping under water erosion, pressure fluctuations, and temperature stress after curing. This improves the wall-adhering stability and sealing reliability of the repair layer, reducing the risk of leakage recurrence and slag blockage.

[0017] This application features a series connector at the front and rear ends of the main body, with a through-flow air and electrical connection channel within the connector. This allows adjacent main bodies to be modularly extended in a detachable manner. When adapting to different pipe lengths or long-distance repairs, the number of main bodies can be quickly increased or decreased according to the pipe length, forming a standardized assembly form where the front end is fixed as an airbag and the rear end is fixed as an inflation end and pump body. This avoids the low assembly efficiency and poor alignment consistency caused by replacing the entire set of equipment or temporary extensions. At the same time, the through-flow electrical connection channel enables the control modules, UV lamps, and detection sensors of each main body segment to form a unified power supply and signal link, improving the coordination and consistency between irradiation position, propulsion attitude, and status monitoring. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is an enlarged view of part A of the present invention; Figure 3 This is a schematic diagram of the internal component structure of the present invention; Among them, 1-main body, 2-roller assembly, 3-airbag, 4-series connector, 5-detection sensor, 6-control module, 7-UV lamp group, 8-inflation pipeline, 9-pump body, 10-inflation end, 11-light-transmitting hole. Detailed Implementation

[0019] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that, unless otherwise specified, the following embodiments and features described therein can be combined with each other.

[0020] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0021] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. In addition, the terms "first," "second," "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0022] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0023] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" 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 mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0024] Furthermore, it should be noted that, unless otherwise specified, the structures, connections, positions, power sources, etc. involved in this invention are all things that a person skilled in the art can know without creative effort based on the prior art.

[0025] Example refer to Figures 1 to 3 As shown, this application discloses a device for repairing sewage pipe linings that prevents detachment and is cured by ultraviolet light. The device includes a main body 1.

[0026] Preferably, an inflatable airbag 3 is fixedly connected to the front end of the main body 1, and an inflation pipe 8 is arranged axially inside or outside the main body 1. The front end of the inflation pipe 8 is sealed and connected to the airbag 3, and the rear end of the inflation pipe 8 is sealed and connected to the inflation end 10 located at the rear end of the main body 1. The inflation end 10 is connected to the pump body 9.

[0027] A UV lamp group 7 is fixedly installed axially inside the main body 1. A number of light-transmitting holes 11 are opened on the outer wall of the main body 1 along its length direction. The light-transmitting holes 11 are arranged axially corresponding to the UV lamp group 7 to achieve the function of light transmission. A number of roller assemblies 2 are rotatably connected to the outer peripheral surface of the main body 1 to assist the main body 1 in moving within the tube.

[0028] Preferably, a control module 6 is fixedly installed on the middle of the outer side of the main body 1, and a detection sensor 5 is fixedly installed on the outer wall of the main body 1 near the front end. The control module 6 is electrically connected to the UV lamp group 7 and the detection sensor 5 respectively.

[0029] Furthermore, the detection sensor 5 is disposed on the outer wall of the main body 1 near the front end and located near the connection between the airbag 3 and the main body 1. The detection sensor 5 is connected to the main body 1 by a threaded connection or an embedded fixing method.

[0030] Preferably, the main body 1 is composed of several segments, and each segment is provided with a series connector 4. The series connector 4 is provided with a through air passage and is connected to the inflation pipe 8. At the same time, the series connector 4 is provided with an electrical connection channel.

[0031] Furthermore, the series connector 4 is connected and fixed to each section of the main body 1 in a detachable manner.

[0032] Furthermore, the inflation pipe 8 is arranged axially along the main body 1 and at least one section is located inside the main body 1, and is coaxially connected with the air passage connection channel in the series connector 4. The inflation pipe 8 is sealed and connected to the airbag 3 and the inflation end 10.

[0033] Preferably, the UV lamp group 7 is arranged along the axial direction of the main body 1 and is coaxial with the main body 1. The axial length of the UV lamp group 7 is not less than the axial coverage length of the array of light-transmitting holes 11 on the main body 1, and the light-transmitting holes 11 and the UV lamp group 7 are equidistantly arranged in the axial direction.

[0034] Furthermore, the light-transmitting holes 11 are circular holes arranged in rows along the length of the main body 1. The diameter of a single light-transmitting hole 11 is 4mm to 12mm, the center distance between adjacent light-transmitting holes 11 is 10mm to 30mm, and the light-transmitting holes 11 form at least five rows of hole arrays in the circumferential direction of the main body 1.

[0035] Preferably, the roller assemblies 2 are evenly distributed along the circumferential direction of the main body 1 and the number is not less than three sets, and the roller assemblies 2 are arranged in at least two columns in the axial direction of each segment of the main body 1.

[0036] The working process of this device is as follows: Before construction, select the appropriate number of sections according to the length of the pipe section to be repaired, and connect multiple sections into a whole in sequence through the series connector 4 to ensure that the front end of the front section is fixed with the airbag 3, and the tail end of the last section is connected to the inflation end 10 and the pump body 9.

[0037] During construction, the resin-impregnated inner lining hose is first pulled into the pipe to be repaired, and the lining is expanded and pressed tightly against the pipe wall using an inflation device. Then, the device is pushed into the inner lining along the pipe axis, and the roller assembly 2 rolls and cooperates with the pipe wall to make the main body 1 advance smoothly and maintain centering.

[0038] After positioning, the pump body 9 inflates the airbag 3 through the inflation end 10 and the inflation pipe 8, causing the airbag 3 to expand radially and fit tightly against the inner lining, forming a leading support, further compacting the inner lining and expelling residual gas or moisture. Then, the control module 6 activates the UV lamp group 7 to emit light, and ultraviolet light shines through the light-transmitting hole 11 to illuminate the inner lining. The control module 6 adjusts the power and working time of the lamp group in real time according to the pressure, temperature or curing temperature information of the airbag 3 fed back by the detection sensor 5, to ensure uniform curing of the resin.

[0039] After curing is complete, stop the lamp assembly and release air through pump 9 to shrink airbag 3. Then remove the device to complete the curing of one section of the lining. If the repair section is long, the above process can be repeated by adding more sections through series connector 4.

[0040] Through the above implementation method, when the device is working, the airbag 3 expands to form a controllable radial compression and leading support effect. Combined with the rolling guidance of the roller assembly 2, the device can maintain a stable posture and continuously compact the inner lining even when there is siltation or local deformation in the pipeline. This significantly reduces the phenomena of voids, wrinkles and local non-adhesion. After curing, the inner lining is not easy to detach from the original pipe wall.

[0041] Meanwhile, the UV lamp group 7 evenly illuminates the lining through the light-transmitting hole 11. With the cooperation of the control module 6 and the detection sensor 5, the curing process can be monitored and controlled to ensure the curing quality.

[0042] The series connector 4 enables modular splicing of the main body 1. The through air and electrical circuits ensure that the inflation and deflation of the airbag 3 and the power supply control of the lamp group are continuously smooth between multiple equipment sections. This facilitates assembly and disassembly, and enables the equipment to adapt to different pipe sections of different lengths while maintaining consistency in illumination, movement, and monitoring, thereby improving construction efficiency and reducing maintenance costs.

[0043] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A device for repairing sewage pipe linings that prevents peeling and is cured by ultraviolet light, characterized in that, The anti-detachment ultraviolet light curing sewage pipe lining repair device includes a main body (1). An inflatable airbag (3) is fixedly connected to the front end of the main body (1). An inflation pipe (8) is arranged axially inside or outside the main body (1). The front end of the inflation pipe (8) is sealed and connected to the airbag (3). The rear end of the inflation pipe (8) is sealed and connected to the inflation end (10) located at the rear end of the main body (1). The inflation end (10) is connected to the pump body (9). The main body (1) is fixedly installed with a UV lamp group (7) along the axial direction inside. The outer wall of the main body (1) is provided with a number of light-transmitting holes (11) along its length direction. The light-transmitting holes (11) and the UV lamp group (7) are arranged in axial direction to achieve the light transmission function. The outer peripheral surface of the main body (1) is rotatably connected with a number of roller assemblies (2) to assist the main body (1) in moving within the tube.

2. The anti-detachment ultraviolet light curing sewage pipe lining repair device as described in claim 1, characterized in that, A control module (6) is fixedly installed on the middle of the outer side of the main body (1), and a detection sensor (5) is fixedly installed on the outer wall of the main body (1) near the front end. The control module (6) is electrically connected to the UV lamp group (7) and the detection sensor (5) respectively.

3. The anti-detachment ultraviolet light curing sewage pipe lining repair device as described in claim 2, characterized in that, The detection sensor (5) is located on the outer wall of the main body (1) near the front end and near the connection between the airbag (3) and the main body (1). The detection sensor (5) is connected to the main body (1) by a threaded connection or an embedded fixing method.

4. The anti-detachment ultraviolet light curing sewage pipe lining repair device as described in claim 2, characterized in that, The main body (1) is composed of several sections, and each section is provided with a series connector (4). The series connector (4) is provided with a through air connection channel and is connected to the inflation pipeline (8). At the same time, the series connector (4) is provided with an electrical connection channel.

5. The anti-detachment ultraviolet light curing sewage pipe lining repair device as described in claim 4, characterized in that, The series connector (4) is connected and fixed to each section of the main body (1) in a detachable manner.

6. The anti-detachment ultraviolet light curing sewage pipe lining repair device as described in claim 4, characterized in that, The inflation pipe (8) is arranged through the axial direction of the main body (1) and at least one section is located inside the main body (1), and is coaxially connected with the air passage in the series connector (4). The inflation pipe (8) is sealed and connected to the airbag (3) and the inflation end (10).

7. The anti-detachment ultraviolet light curing sewage pipe lining repair device as described in claim 1, characterized in that, The UV lamp group (7) is arranged along the axial direction of the main body (1) and is coaxial with the main body (1). The axial length of the UV lamp group (7) is not less than the axial coverage length of the light-transmitting hole (11) array on the main body (1), and the light-transmitting hole (11) and the UV lamp group (7) are equidistantly arranged in the axial direction.

8. The anti-detachment ultraviolet light curing sewage pipe lining repair device as described in claim 7, characterized in that, The light-transmitting holes (11) are circular holes arranged in rows along the length of the main body (1). The diameter of a single light-transmitting hole (11) is 4mm to 12mm, the center distance between adjacent light-transmitting holes (11) is 10mm to 30mm, and the light-transmitting holes (11) form at least five rows of hole arrays in the circumferential direction of the main body (1).

9. The anti-detachment ultraviolet light curing sewage pipe lining repair device as described in claim 1, characterized in that, The roller assembly (2) is evenly distributed along the circumferential direction of the main body (1) and there are no less than three sets. The roller assembly (2) is arranged in the axial direction of each section of the main body (1) with at least two rows in the front and back.

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