Non-excavation ultraviolet light curing device for underground pipeline

Abstract

The utility model relates to the field of pipeline repair, in particular to an underground pipeline trenchless ultraviolet light curing device which comprises a plurality of ultraviolet light devices, every two adjacent ultraviolet light devices are connected through a universal joint coupler and are in telecommunication connection through a cable, and the cable is connected with the ultraviolet light devices. The opposite sides of the two ultraviolet light devices on the outermost side are connected with traction ports respectively, each ultraviolet light device comprises lamp holder end heads which are symmetrically arranged and a main body rod connected between the lamp holder end heads, a first sliding plate is arranged at one end of each main body rod in a sliding and penetrating mode, and a second sliding plate is arranged at the other end of each main body rod in a sliding and penetrating mode. The telescopic rod assembly drives the first sliding plate and the second sliding plate to move oppositely and reversely, the included angle of the scissor-type adjusting mechanism is changed, and therefore the distance between the ultraviolet light curing assembly and the inner wall of the pipeline is adjusted, automatic adjustment of the distance between the ultraviolet light curing assembly and the inner wall of the pipeline is achieved, it is ensured that ultraviolet light can evenly irradiate the inner wall of the pipeline, and the service life of the pipeline is prolonged. The curing effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of pipeline repair, and in particular to a trenchless ultraviolet curing device for underground pipelines. Background Technology

[0002] As a key component of urban infrastructure, underground pipelines are buried deep underground and undertake important tasks such as transporting water resources, energy and waste. They play an irreplaceable role in maintaining the normal operation of the city and improving the quality of life of residents. When these pipelines encounter emergencies such as leaks or ruptures, rapid and effective repair is crucial. Trenchless ultraviolet curing technology is an efficient emergency repair method.

[0003] Trenchless UV curing repair technology for underground pipelines is an innovative pipeline repair method. It involves inserting a resin-impregnated hose into the damaged or aged pipeline and irradiating the hose with professional UV curing equipment. Under the radiation of ultraviolet light, the resin undergoes a polymerization reaction, gradually changing from a liquid state to a solid state, thereby forming a strong and corrosion-resistant inner lining layer on the inner wall of the pipeline, achieving the purpose of repairing the pipeline.

[0004] Regarding the aforementioned technologies, the inventors discovered that in practical applications, traditional ultraviolet curing equipment has some problems when adapting to pipes of different diameters. Due to the difference in pipe diameter, the distance between the curing lamp and the inner wall of the pipe will be different, which may cause uneven curing of the resin hose during the ultraviolet curing process. Uneven curing not only affects the strength and corrosion resistance of the inner lining layer, but may also reduce the repair effect of the pipe and even leave safety hazards. Utility Model Content

[0005] The main technical problem solved by this utility model is to provide a trenchless ultraviolet curing device for underground pipelines, which makes it easy to adjust the distance between the curing lamp and the inner wall of the pipeline, so that the resin hose is cured more evenly and the pipeline repair effect is improved.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: providing a trenchless ultraviolet curing device for underground pipelines, comprising: a plurality of ultraviolet light devices, adjacent ultraviolet light devices being connected by a universal joint coupling and adjacent ultraviolet light devices being connected by a cable; the two outermost ultraviolet light devices having traction ports connected to opposite sides respectively; each ultraviolet light device includes symmetrically arranged lamp holder ends and a main body rod connected therebetween; one end of the main body rod is slidably provided with a sliding plate one, and the other end is slidably provided with a sliding plate two; and at least three scissor-type adjustment mechanisms with ultraviolet curing function are provided between the sliding plate one and the sliding plate two.

[0007] At least two ultraviolet curing components are provided between two adjacent scissor-type adjustment mechanisms, and the two ends of the ultraviolet curing components are respectively connected to the end of the lamp holder;

[0008] It also includes a telescopic rod assembly that drives sliding plate one and sliding plate two to move in opposite directions. When the telescopic rod assembly extends or retracts, it is suitable for changing the included angle of the scissor-type adjustment mechanism.

[0009] By adopting the above technical solution, several ultraviolet light devices and universal joint couplings are connected to form a flexible curing light chain. This chain can not only adapt to the repair needs of pipes of different lengths, but also to pipe bends or irregular shapes. At the same time, the traction port is used to connect external traction equipment to pull the entire device into the pipe to be repaired. It also facilitates the removal of the device from the pipe after the repair is completed. The telescopic rod assembly drives sliding plates one and two to move in opposite directions, changing the included angle of the scissor-type adjustment mechanism, thereby adjusting the distance between the ultraviolet curing component and the inner wall of the pipe. This achieves automatic adjustment of the distance between the ultraviolet curing component and the inner wall of the pipe, ensuring that the ultraviolet light can be evenly irradiated onto the inner wall of the pipe, improving the curing effect. After the ultraviolet curing component is positioned, it emits ultraviolet light, causing the resin to undergo a polymerization reaction under ultraviolet irradiation, forming a solid inner lining layer, thus achieving rapid and efficient pipe repair.

[0010] In a preferred embodiment, the present invention can be further configured as follows: the scissor-type adjustment mechanism includes symmetrically arranged support arms, which are cross-shaped and rotatably connected by pins. One end of each support arm is connected to a hinge seat, and the other end is connected to a caster. The hinge seats are rotatably connected to the support arms by pins. The hinge seats are connected to corresponding sliding plates one and two. Lamp holders are symmetrically connected to the side of each support arm away from the main rod. Ultraviolet lamp poles are electrically installed between the lamp holders. The lamp holders are electrically connected to the lamp holder ends by wires.

[0011] By adopting the above technical solution, the support arm adopts a cross-shaped symmetrical layout, and a flexible connection is achieved through pin shafts. In conjunction with the telescopic rod assembly, the distance between the ultraviolet curing component and the inner wall of the pipe is adjusted so that the curing device can adapt to the needs of pipes of different diameters. This ensures that the ultraviolet light can be evenly irradiated onto the inner wall of the pipe. The casters are used to make rolling contact with the pipe wall, making the mechanism more flexible and smooth when moving inside the pipe, reducing friction and resistance with the inner wall of the pipe. The installation of the lamp holder and ultraviolet lamp pole ensures that the ultraviolet light can be evenly and effectively irradiated onto the resin hose, promoting the polymerization reaction of the resin and improving the curing effect.

[0012] In a preferred embodiment, the present invention can be further configured as follows: the telescopic rod assembly includes electric push rods respectively connected to opposite sides of the lamp holder end, the electric push rods being staggered, and sliding plate one and sliding plate two respectively having clearance holes adapted to the corresponding electric push rods, the electric push rods being located in the corresponding clearance holes, and one end of the electric push rods being connected to the corresponding sliding plate one and sliding plate two respectively.

[0013] By adopting the above technical solution, the clearance hole allows the electric push rod to extend and retract smoothly and be fixed in the required position without interfering with the movement of the sliding plate. At the same time, one end of the electric push rod is connected to the corresponding sliding plate one and sliding plate two respectively. The extension and retraction of the electric push rod directly drives the movement of the sliding plate, realizing precise control of the included angle of the scissor-type adjustment mechanism.

[0014] In a preferred embodiment, the present invention can be further configured as follows: the ultraviolet curing component includes a mounting housing, an ultraviolet matrix lamp group electrically mounted inside the mounting housing, a reinforcing rib with a guiding function connected to the side of the mounting housing near the main rod, and sliding grooves matching the number of reinforcing ribs on the surfaces of sliding plate one and sliding plate two, the sliding grooves being slidably connected to the reinforcing ribs, and the two ends of the reinforcing ribs being connected to the lamp holder ends respectively.

[0015] By adopting the above technical solution, the mounting housing is used to protect the lamp assembly from interference and damage from the external environment, ensuring that the ultraviolet matrix lamp assembly can work normally and stably, further improving the effect and reliability of ultraviolet curing. Composed of multiple ultraviolet lamps, it can emit high-intensity ultraviolet light to quickly and uniformly cure the resin, further improving the efficiency and quality of ultraviolet curing, ensuring that the resin can fully polymerize and form a solid inner lining layer. In addition, the reinforcing ribs not only increase the structural strength of the mounting housing, but also play a guiding role, ensuring that the mounting housing can move smoothly along the predetermined trajectory during sliding.

[0016] In a preferred embodiment, this invention can be further configured such that: the two outermost ultraviolet light devices are provided with a plurality of auxiliary rings on opposite sides.

[0017] By adopting the above technical solution, the auxiliary ring can serve as an additional support structure, which can enhance the structural stability of the two outermost ultraviolet light devices and prevent deformation or damage due to excessive force during the pushing or pulling process. At the same time, during the pushing or pulling process, the auxiliary ring can disperse the force on the device, reduce the concentrated pressure on individual components, and extend the service life of the device.

[0018] In summary, this utility model includes at least the following beneficial technical effects of the trenchless ultraviolet curing device for underground pipelines:

[0019] 1. Several ultraviolet light devices and universal joint couplings are connected to form a flexible curing light chain, which can not only adapt to the repair needs of pipes of different lengths, but also adapt to pipe bends or irregular shapes. At the same time, the traction port is used to connect external traction equipment to pull the entire device into the pipe to be repaired. It is also convenient to remove the device from the pipe after the repair is completed.

[0020] 2. By driving sliding plates one and two to move in opposite directions through the telescopic rod assembly, the included angle of the scissor-type adjustment mechanism is changed, thereby adjusting the distance between the UV curing component and the inner wall of the pipe. This achieves automatic adjustment of the distance between the UV curing component and the inner wall of the pipe, ensuring that the UV light can be evenly irradiated onto the inner wall of the pipe, improving the curing effect. After the UV curing component is positioned, it emits UV light, causing the resin to undergo a polymerization reaction under the irradiation of ultraviolet light, forming a solid inner lining layer, thus achieving rapid and efficient pipe repair.

[0021] 3. The combination of reinforcing ribs and sliding grooves ensures the stability of the mounting housing during movement, preventing uneven UV curing caused by offset or shaking. At the same time, the connection between the reinforcing ribs and the lamp holder end forms a stable frame structure, providing additional support and fixation for the UV curing components. Combined with the UV matrix lamp group, it further enhances the curing effect, enabling the entire device to maintain efficient and precise curing operations even in complex pipeline environments. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0023] Figure 1 This is a schematic diagram of the structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the ultraviolet light device of this utility model;

[0025] Figure 3 for Figure 2 Exploded view;

[0026] Figure 4 This is a schematic diagram of the scissor-type adjustment mechanism of this utility model;

[0027] Figure 5 This is a schematic diagram of the structure of the ultraviolet curing component of this utility model.

[0028] In the diagram: 10. Ultraviolet light device; 2. Universal joint coupling; 3. Traction port; 4. Auxiliary ring;

[0029] 11. Lamp holder end; 12. Main pole; 13. Scissor-type adjustment mechanism; 14. UV curing assembly; 15. Telescopic pole assembly; 16. Clearance hole; 17. Sliding groove; 18. Sliding plate one; 19. Sliding plate two;

[0030] 131. Support arm; 132. Hinge seat; 133. Caster wheel; 134. Lamp holder; 135. UV lamp pole;

[0031] 141. Mounting housing; 142. Ultraviolet matrix lamp assembly; 143. Reinforcing ribs;

[0032] 151. Electric linear actuator. Detailed Implementation

[0033] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0034] It should be noted that these figures are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0035] Reference Figure 1-5This utility model discloses a trenchless ultraviolet curing device for underground pipelines, comprising: several ultraviolet light devices 10, adjacent ultraviolet light devices 10 connected by universal joint couplings 2 and electrically connected by cables; traction ports 3 connected to opposite sides of the two outermost ultraviolet light devices 10; and several auxiliary rings 4 provided on opposite sides of the two outermost ultraviolet light devices 10. Each ultraviolet light device 10 includes symmetrically arranged lamp holder ends 11 and a main body rod 12 connected therebetween. One end of the main body rod 12 is slidably fitted with a sliding plate 18, and the other end is slidably fitted with a sliding plate 19. At least three scissor-type adjustment mechanisms 13 with ultraviolet curing function are provided between the sliding plates 18 and 19. At least two ultraviolet curing assemblies 14 are provided between the two adjacent scissor-type adjustment mechanisms 13. The two ends of the ultraviolet curing assembly 14 are respectively connected to the lamp holder end 11. It also includes a telescopic rod assembly 15 that drives the sliding plate 18 and the sliding plate 2 19 to move in opposite directions. When the telescopic rod assembly 15 extends and retracts, it is suitable to change the included angle of the scissor-type adjustment mechanism 13. The telescopic rod assembly 15 includes electric push rods 151 respectively connected to the opposite side of the lamp holder end 11. The electric push rods 151 are respectively staggered. The sliding plate 18 and the sliding plate 2 19 are respectively provided with clearance holes 16 adapted to the corresponding electric push rods 151. The electric push rods 151 are located in the corresponding clearance holes 16. One end of the electric push rods 151 is respectively connected to the corresponding sliding plate 18 and the sliding plate 2 19.

[0036] Adjacent UV light devices 10 are connected by universal joint couplings 2 to form a flexible curing light chain. This chain can adapt to the repair needs of pipes of different lengths, as well as pipes with different diameters and local deformations. At the same time, cables ensure signal transmission and data synchronization between each UV light device 10. The electric push rod 151 drives the sliding plates 18 and 19 to move in opposite directions, adjusting the angle of the scissor-type adjustment mechanism 13 so that the UV light device 10 is located at the center of the pipe. This also adjusts the distance between the UV curing component 14 and the inner wall of the pipe, ensuring that the UV light can be evenly irradiated onto the inner wall of the pipe. After the UV curing component 14 is positioned, it emits UV light, causing the resin to polymerize under the UV light and form a solid inner lining layer, achieving rapid and efficient pipe repair.

[0037] The scissor-type adjustment mechanism 13 includes symmetrically arranged support arms 131, which are cross-arranged and rotatably connected by pins. One end of each support arm 131 is connected to a hinge seat 132, and the other end is connected to a caster 133. The hinge seats 132 are rotatably connected to the support arms 131 by pins. The hinge seats 132 are connected to the corresponding sliding plates 18 and 19. The side of the support arm 131 away from the main rod 12 is symmetrically connected to lamp holders 134. Ultraviolet lamp rods 135 are electrically installed between the lamp holders 134. The lamp holders 134 are electrically connected to the lamp holder end 11 by wires.

[0038] The caster 133 is preferably a double-row caster, which allows the scissor-type adjustment mechanism 13 to move more smoothly when adjusting the included angle. The caster 133 is wrapped with silicone material, which reduces pipe wear or damage through the damping effect. The support arm 131 adopts a cross-shaped symmetrical layout, so that the support arm 131 opens and closes like scissors, thereby bringing the ultraviolet light device 10 closer to the center of the pipe. The distance between the ultraviolet curing component 14, the ultraviolet lamp rod 135 and the inner wall of the pipe is adjusted to make the ultraviolet light more uniform during the irradiation process. The ultraviolet curing component 14 and the ultraviolet lamp rod 135 assist each other and can also fully cure the curved section of the pipe, improving the curing effect of the pipe.

[0039] The ultraviolet curing assembly 14 includes a mounting housing 141, in which an ultraviolet matrix lamp group 142 is electrically mounted. A reinforcing rib 143 with a guiding function is connected to the side of the mounting housing 141 near the main rod 12. The surfaces of the sliding plate 18 and the sliding plate 19 are respectively provided with sliding grooves 17 matching the number of reinforcing ribs 143. The sliding grooves 17 are slidably connected to the reinforcing ribs 143. The two ends of the reinforcing ribs 143 are respectively connected to the lamp holder end 11.

[0040] The ultraviolet matrix lamp assembly 142 uses a 365nm wavelength ultraviolet LED lamp bead array, which achieves a 120° coverage angle through a ring layout, further improving the ultraviolet curing effect. It can emit high-intensity ultraviolet light to quickly and uniformly cure the resin, ensuring that the resin can fully polymerize and form a solid inner lining layer. In addition, the reinforcing ribs 143 not only increase the structural strength of the mounting housing 141, but also play a guiding role, ensuring that the mounting housing 141 can move smoothly along the predetermined trajectory during sliding.

[0041] The implementation principle of this embodiment is as follows: When the flexible tube impregnated with photosensitive resin is installed into the pipe to be repaired by the pulling equipment, and the pipe is inflated to make the flexible tube expand and fit tightly against the inner wall of the pipe, the workers, with the help of equipment such as winches, put the ultraviolet light device 10 connected by the universal joint coupling 2 into the pipe. The flexible curing lamp chain formed by it, together with the auxiliary ring 4, allows the ultraviolet light device 10 to be pulled. Then, the electric push rod 151 retracts to drive the sliding plate 18 and the sliding plate 19 to move towards each other. At this time, the casters 133 on the support arm 131 contact the pipe wall respectively, and the ultraviolet light device 10 is adjusted to be close to the center of the pipe. Then, the ultraviolet curing component 14 and the ultraviolet lamp rod 135 cooperate to irradiate the flexible tube. At this time, the ultraviolet light irradiates the resin and triggers the polymerization reaction of the resin, so that the resin gradually changes from liquid to solid, forming a hard and corrosion-resistant inner lining layer that is tightly attached to the inner wall of the pipe.

[0042] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made using the content of this utility model specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. Trenchless UV curing device for underground pipelines, including: A plurality of ultraviolet light devices (10) are provided, with two adjacent ultraviolet light devices (10) connected by a universal joint coupling (2) and two adjacent ultraviolet light devices (10) connected by a cable. The two outermost ultraviolet light devices (10) are respectively connected to a traction port (3) on opposite sides. The ultraviolet light device (10) includes a lamp holder end (11) arranged symmetrically and a main body rod (12) connected therebetween. One end of the main body rod (12) is slidably provided with a sliding plate one (18) and the other end is slidably provided with a sliding plate two (19). There are not less than three scissor-type adjustment mechanisms (13) with ultraviolet curing function between the sliding plate one (18) and the sliding plate two (19). At least two ultraviolet curing components (14) are provided between two adjacent scissor-type adjustment mechanisms (13), and the two ends of the ultraviolet curing components (14) are respectively connected to the lamp holder end (11); It also includes a telescopic rod assembly (15) that drives sliding plate one (18) and sliding plate two (19) to move in opposite directions. When the telescopic rod assembly (15) extends or retracts, it is suitable for changing the included angle of the scissor-type adjustment mechanism (13).

2. The trenchless ultraviolet curing device for underground pipelines according to claim 1, characterized in that, The scissor-type adjustment mechanism (13) includes symmetrically arranged support arms (131). The support arms (131) are arranged crosswise and rotatably connected by pins. One end of each support arm (131) is connected to a hinge seat (132), and the other end is connected to a caster (133). The hinge seat (132) is rotatably connected to the support arm (131) by pins. The hinge seat (132) is connected to the corresponding sliding plate one (18) and sliding plate two (19). The side of the support arm (131) away from the main rod (12) is symmetrically connected to lamp holders (134). Ultraviolet lamp poles (135) are electrically installed between the lamp holders (134). The lamp holders (134) are electrically connected to the lamp holder end (11) by wires.

3. The trenchless ultraviolet curing device for underground pipelines according to claim 1, characterized in that, The telescopic rod assembly (15) includes electric push rods (151) connected to opposite sides of the lamp holder end (11). The electric push rods (151) are staggered. The sliding plate one (18) and the sliding plate two (19) are respectively provided with clearance holes (16) adapted to the corresponding electric push rods (151). The electric push rods (151) are located in the corresponding clearance holes (16). One end of the electric push rods (151) is connected to the corresponding sliding plate one (18) and sliding plate two (19).

4. The trenchless ultraviolet curing device for underground pipelines according to claim 1, characterized in that, The ultraviolet curing assembly (14) includes a mounting housing (141), in which an ultraviolet matrix lamp group (142) is electrically mounted. A reinforcing rib (143) with a guiding function is connected to the side of the mounting housing (141) near the main rod (12). The surfaces of the sliding plate one (18) and the sliding plate two (19) are respectively provided with sliding grooves (17) matching the number of reinforcing ribs (143). The sliding grooves (17) are slidably connected to the reinforcing ribs (143). The two ends of the reinforcing ribs (143) are respectively connected to the lamp holder end (11).

5. The trenchless ultraviolet curing device for underground pipelines according to claim 1, characterized in that, The two outermost ultraviolet light devices (10) are provided with several auxiliary rings (4) on opposite sides.

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