Ultraviolet curing lamp holder for pipeline repair and curing repair equipment

Abstract

The utility model relates to the technical field of pipeline repair, in particular to an ultraviolet light curing lamp holder for pipeline repair and curing repair equipment. The equipment comprises a middle frame body, advancing mechanisms and a controller, the advancing mechanisms are arranged at the front end and the rear end of the middle frame body respectively, each advancing mechanism comprises advancing wheels, a diameter changing mechanism and a pressure sensing device, the multiple advancing wheels are arranged around the middle frame body in an annular array mode in the circumferential direction, and the diameter changing mechanisms are connected with the advancing wheels and the middle frame body; the diameter changing mechanism drives the advancing wheels to synchronously move in the radial direction of the pipeline so as to change the circumcircle diameters of the advancing wheels, the pressure sensing device is used for sensing the pressure between the advancing wheels and the pipeline, and the controller is used for controlling the diameter changing mechanism to act according to the pressure. The controller controls the reducing mechanism to move according to the pressure sensed by the pressure sensing device, the positions of the traveling wheels in the radial direction of the pipeline are synchronously changed, the equipment adapts to the change of the inner diameter of the pipeline, the stability of the repairing process is guaranteed, and the repairing effect is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of pipeline repair technology, specifically to an ultraviolet curing lamp holder and curing repair equipment for pipeline repair. Background Technology

[0002] In pipeline repair, ultraviolet (UV) curing technology is widely used for curing repair materials on the inner walls of pipelines. UV curing lamps emit ultraviolet light of a specific wavelength, causing the repair material to cure rapidly in a short time, forming a strong protective layer. This technology has advantages such as fast curing speed, environmental friendliness, and long-lasting repair effects, and is widely used in municipal pipelines, oil pipelines, and other fields.

[0003] Specifically, the process involves impregnating the inner lining of a repair hose with resin and pulling it into the municipal pipeline. An inflation device is used to inflate the hose lining until it adheres to the inner wall of the pipeline to be repaired. Then, a UV-curing repair device is pulled into the hose lining and slowly moved along the inner wall of the lining using traction. As the device moves, the ultraviolet light emitted by the UV lamp on the device cures the resin on the hose lining, thus securing the hose lining to the inner wall of the municipal pipeline and achieving the desired repair effect.

[0004] In the prior art, such as the Chinese utility model patent with authorization announcement number CN217927780U, a device for integrated construction based on CIPP ultraviolet curing repair is disclosed. This device includes two sets of uprights, left and right. A horizontal column is fixedly connected to the middle of the adjacent surfaces of the two sets of uprights. Three sets of rollers are equidistantly and adjustablely connected to the annular outer surfaces of both sets of uprights. Several sets of lamps are equidistantly and fixedly connected between the two sets of uprights at annular intervals outside the horizontal columns. Traction blocks are fixedly connected to the middle of the end faces of both sets of uprights away from the lamps. Protective components are provided on the outside of the sets of lamps. This device can repair pipes using ultraviolet light irradiated by the lamps during operation, while the protective components protect the lamps before the device cures and repairs the pipes.

[0005] The aforementioned equipment consists of two uprights, a horizontal column, and a third set of adjustable rollers mounted on the uprights, forming a UV curing lamp holder. In actual use, before entering the pipe, operators must manually adjust the position of the rollers relative to the uprights to ensure the outer circumcircle of the three sets of rollers matches the inner diameter of the pipe, guaranteeing the rollers can be supported within the pipe. However, in actual use, when the pipe's inner diameter changes, because the rollers' position relative to the uprights is fixed after adjustment, the three sets of rollers cannot move relative to each other radially, failing to automatically adapt to changes in the pipe's inner diameter during operation.

[0006] When the pipe diameter decreases, the equipment may become stuck. When the pipe diameter increases, the equipment may experience vibrations. Furthermore, the increased pipe diameter causes the equipment axis to misalign with the pipe axis, resulting in inconsistent distances between the UV lamps and the inner wall of the pipe, affecting the UV curing effect of the actual repair work. This impacts the efficiency and quality of pipe repair. Utility Model Content

[0007] The technical problem to be solved by this utility model is to provide a UV curing lamp holder and curing repair equipment for pipeline repair. Using a controller, the movement of the diameter-changing mechanism can be controlled according to the pressure sensed by the pressure sensing device, and the position of each traveling wheel in the radial direction of the pipeline can be changed synchronously. The equipment adapts to changes in the inner diameter of the pipeline, ensuring a stable repair process and guaranteeing the repair effect.

[0008] To address the aforementioned technical problems, this utility model provides a UV curing lamp holder for pipeline repair, comprising a central frame, a traveling mechanism, and a controller. The traveling mechanism is arranged in sets at both the front and rear ends of the central frame. Each traveling mechanism includes traveling wheels, a diameter-changing mechanism, and a pressure sensing device. Multiple traveling wheels are arranged in a circular array around the central frame in the circumferential direction. The diameter-changing mechanism connects the traveling wheels and the central frame, driving each traveling wheel to move synchronously along the radial direction of the pipeline to change the outer diameter of each traveling wheel. The pressure sensing device senses the pressure between the traveling wheels and the pipeline. The controller controls the operation of the diameter-changing mechanism based on the pressure.

[0009] Furthermore, the variable diameter mechanism includes a movable disc, a traveling rod, and a drive mechanism. The movable disc is parallel to the end of the central frame and their center lines coincide. Multiple traveling rods are arranged in a circumferential array. The inner end of each traveling rod is rotatably mounted on the movable disc, and a traveling wheel is rotatably mounted on the upper end of the traveling rod. The middle part of each traveling rod is rotatably mounted on the central frame and can slide on the central frame. The drive mechanism drives the movable disc to move in the front-back direction to synchronously change the opening and closing angle of each traveling rod.

[0010] Furthermore, the driving mechanism includes a motor and a drive screw. The motor is fixedly mounted on the central frame. The motor drives the drive screw to rotate, and its rotation axis extends in the front-to-back direction. A threaded through hole is provided in the center of the movable disk, and the drive screw is threadedly engaged with the threaded through hole.

[0011] Furthermore, the end of the central frame is provided with a rotation notch, and the middle side of the travel rod is provided with a guide groove extending along its length. A sliding shaft is provided in the rotation notch, and the sliding shaft is rotatably inserted in the guide groove and slides in cooperation with the guide groove.

[0012] Furthermore, the movable disc is provided with a matching rotating notch corresponding to the inner end of each of the travel rods, and the inner end of the travel rod is rotatably installed in the rotating notch.

[0013] Furthermore, the outer end of the travel rod is provided with a mounting hole, and a wheel axle is installed in the mounting hole to prevent rotation. The travel wheel is rotatably mounted on the wheel axle. The pressure sensing device includes a pressure sensor, which is disposed between the wheel axle and the mounting hole.

[0014] Furthermore, among the multiple traveling wheels of each group of traveling mechanisms, at least one is an electric wheel.

[0015] To address the aforementioned technical problems, this utility model also provides a UV curing repair device for pipeline repair, comprising a UV curing lamp holder, on which a UV lamp is mounted, and a power supply for powering the UV lamp. The UV curing lamp holder includes a central frame, a traveling mechanism, and a controller. A group of traveling mechanisms is respectively arranged at the front and rear ends of the central frame. The traveling mechanism includes traveling wheels, a diameter-changing mechanism, and a pressure sensing device. Multiple traveling wheels are arranged in a circular array around the central frame in a circumferential direction. The diameter-changing mechanism connects the traveling wheels and the central frame, driving each traveling wheel to move synchronously along the radial direction of the pipeline to change the outer diameter of each traveling wheel. The pressure sensing device senses the pressure between the traveling wheels and the pipeline. The controller controls the operation of the diameter-changing mechanism based on the pressure.

[0016] Furthermore, the variable diameter mechanism includes a movable disc, a traveling rod, and a drive mechanism. The movable disc is parallel to the end of the central frame and their center lines coincide. Multiple traveling rods are arranged in a circumferential array. The inner end of each traveling rod is rotatably mounted on the movable disc, and a traveling wheel is rotatably mounted on the upper end of the traveling rod. The middle part of each traveling rod is rotatably mounted on the central frame and can slide on the central frame. The drive mechanism drives the movable disc to move in the front-back direction to synchronously change the opening and closing angle of each traveling rod.

[0017] Furthermore, the driving mechanism includes a motor and a drive screw. The motor is fixedly mounted on the central frame. The motor drives the drive screw to rotate, and its rotation axis extends in the front-to-back direction. A threaded through hole is provided in the center of the movable disk, and the drive screw is threadedly engaged with the threaded through hole.

[0018] Furthermore, the end of the central frame is provided with a rotation notch, and the middle side of the travel rod is provided with a guide groove extending along its length. A sliding shaft is provided in the rotation notch, and the sliding shaft is rotatably inserted in the guide groove and slides in cooperation with the guide groove.

[0019] Furthermore, the movable disc is provided with a matching rotating notch corresponding to the inner end of each of the travel rods, and the inner end of the travel rod is rotatably installed in the rotating notch.

[0020] Furthermore, the outer end of the travel rod is provided with a mounting hole, and a wheel axle is installed in the mounting hole to prevent rotation. The travel wheel is rotatably mounted on the wheel axle. The pressure sensing device includes a pressure sensor, which is disposed between the wheel axle and the mounting hole.

[0021] Furthermore, among the multiple traveling wheels of each group of traveling mechanisms, at least one is an electric wheel.

[0022] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0023] (1) The travel wheel and the central frame are connected by a diameter-changing mechanism. The pressure sensing device senses the pressure between the travel wheel and the pipeline, and the controller controls the operation of the diameter-changing mechanism according to the pressure. When the inner diameter of the pipeline changes, the pressure between the travel wheel and the pipeline changes. The pressure sensing device transmits the signal to the controller, which drives the diameter-changing mechanism to move the travel wheel synchronously along the radial direction of the pipeline. It automatically adjusts the outer diameter of the circumscribed circle to prevent the equipment from getting stuck when the pipe diameter decreases and from shaking when the pipe diameter increases, ensuring stable movement of the equipment and improving repair efficiency. When the pipe diameter changes, the position of the travel wheel is adjusted synchronously to make the axis of the equipment coincide with the axis of the pipeline as much as possible, ensuring that the distance between each ultraviolet lamp and the inner wall of the pipeline is consistent, so that the ultraviolet light is evenly irradiated and the quality of pipeline repair is improved.

[0024] (2) The drive mechanism drives the movable disc to move in the front and back direction, so that the opening and closing angle of the traveling rod of the ring array changes synchronously, thereby driving the traveling wheel to move radially, so as to adapt to the change of pipe diameter. It is easy to operate and easy to maintain.

[0025] (3) The drive screw and the movable plate form a screw and nut mechanism. The electric motor and drive screw are used as the drive mechanism to convert the rotational motion into the linear movement of the movable plate. This allows for precise control of the moving distance of the movable plate and facilitates precise adjustment of the opening and closing angle of the travel rod.

[0026] (4) The mounting notch at the end of the middle frame and the guide groove and sliding shaft on the travel rod provide stable guidance for the travel rod to slide during rotation. When the movable plate moves and drives the travel rod to change the opening and closing angle, the sliding shaft slides in the guide groove to ensure that the travel rod moves smoothly, avoids jamming or deviation, ensures the normal operation of the diameter changing mechanism, and improves the stability of the equipment.

[0027] (5) The pressure sensor is placed between the wheel axle and the mounting hole, which can directly and accurately sense the pressure between the traveling wheel and the pipe. The pressure generated by the contact between the traveling wheel and the pipe is transmitted to the pressure sensor through the wheel axle. The pressure sensor converts the pressure signal into an electrical signal and transmits it to the controller, providing accurate data for the controller to control the diameter changing mechanism, and ensuring that the equipment can adapt to pipe diameter changes in a timely and accurate manner.

[0028] (6) Each traveling mechanism shall have at least one electric wheel, which can provide additional power to assist the lamp holder in traveling in the pipeline. On the other hand, during the travel of the equipment, especially when the pipe diameter changes or the environment inside the pipeline is complex, the electric wheel can provide additional power. When the pipe diameter increases and the travel resistance increases, the electric wheel can assist the equipment to travel smoothly, avoid the equipment from stopping or bumping due to excessive resistance, and further improve the equipment's ability to pass through pipelines of different diameters and the continuity of repair operations. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall structure of a UV curing lamp holder for pipeline repair in Embodiment 1 of this utility model.

[0030] Figure 2 This is a cross-sectional view of a UV curing lamp holder for pipe repair according to Embodiment 1 of this utility model.

[0031] Figure 3 This is a structural schematic diagram of an ultraviolet curing lamp holder (excluding movable sleeve) for pipeline repair in Embodiment 1 of this utility model.

[0032] Figure 4 This is a schematic diagram of the traveling mechanism in Embodiment 1 of this utility model.

[0033] Figure 5 This is a cross-sectional view of the traveling wheel and traveling rod in Embodiment 1 of this utility model.

[0034] In the diagram: 1. Movable sleeve; 2. Controller; 3. Guide frame; 4. Connecting rod; 5. Drive mechanism; 6. Movable disc; 7. Traveling rod; 8. Traveling wheel; 9. Ultraviolet lamp; 10. Internal gear ring; 11. Gear module; 12. Drive motor; 13. Placement frame; 14. Electric motor; 15. Drive screw; 16. Sliding shaft; 17. Guide groove; 18. Fixed sleeve; 19. Rotating bearing; 20. Middle frame; 21. Traveling mechanism; 22. Ultraviolet lamp mounting position; 23. Rotating mechanism; 24. Rotation notch; 25. Rotation gap; 26. Wheel axle; 27. Pressure sensor; 28. Key; 29. ​​Variable diameter mechanism; 30. Mounting hole. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings: Specific Implementation Example 1:

[0037] like Figure 1 As shown, in this embodiment, the axial direction of the movable sleeve 1 is the front-to-back direction.

[0038] refer to Figures 1 to 5 The present invention relates to an ultraviolet curing repair device for pipeline repair (hereinafter referred to as the repair device), which includes an ultraviolet curing lamp holder, on which an ultraviolet lamp 9 is provided, and a power supply (not shown in the figure) for supplying power to the ultraviolet lamp 9.

[0039] In this embodiment, the UV curing support includes a central frame 20, with a set of traveling mechanisms 21 respectively provided at the front and rear ends of the central frame 20. The traveling mechanisms 21 are used to support the movement of the device along the inner wall of the pipe. Each traveling mechanism 21 includes traveling wheels 8, a diameter-changing mechanism 29, and a pressure sensing device. Multiple traveling wheels 8 are arranged in a circular array around the central frame 20 in a circumferential direction. The diameter-changing mechanism 29 connects the traveling wheels 8 and the central frame 20, driving each traveling wheel 8 to move synchronously along the radial direction of the pipe to change the outer diameter of each traveling wheel 8. The pressure sensing device is used to sense the pressure between the traveling wheels 8 and the pipe. The controller 2 is used to control the operation of the diameter-changing mechanism 29 according to the pressure.

[0040] This configuration ensures that when the pipe's inner diameter changes, the pressure between the traveling wheel 8 and the pipe changes. The pressure sensor transmits a signal to the controller 2, which then drives the diameter-changing mechanism 29 to move the traveling wheel 8 synchronously along the pipe's radial direction. This automatically adjusts the outer diameter of the circumscribed circle, preventing the equipment from jamming when the pipe diameter decreases and from shaking when the pipe diameter increases, thus ensuring stable equipment movement and improving repair efficiency. When the pipe diameter changes, the position of the traveling wheel 8 is adjusted synchronously to ensure that the equipment's axis coincides as much as possible with the pipe's axis, guaranteeing that each ultraviolet lamp 9 is at a consistent distance from the pipe's inner wall, resulting in uniform ultraviolet light irradiation and improving the quality of pipe repair.

[0041] like Figure 1 , 2 As shown in Figure 3, the central frame 20 includes two guide frames 3 symmetrically arranged in the front-back direction. Multiple parallel connecting rods 4 are connected between the guide frames 3, and the multiple connecting rods 4 are arranged in a circular array in the circumferential direction. Two fixed sleeves 18 are provided at intervals on the outer periphery of the connecting rods 4 in the front-back direction. A movable sleeve 1 is rotatably fitted on the outside of the fixed sleeves 18, and its rotation axis extends in the front-back direction.

[0042] Multiple ultraviolet lamp mounting positions 22 are arranged in a circular array along the axis of the outer circumference of the movable sleeve 1. A rotating mechanism 23 is also provided on the central frame 20, which drives the movable sleeve 1 to rotate. Ultraviolet lamps 9 are fixedly installed on the corresponding ultraviolet lamp mounting positions 22. Under the action of the rotating mechanism 23, the movable sleeve 1 rotates around the central frame 20, simultaneously driving the ultraviolet lamps 9 to rotate and irradiate, making the illumination more uniform and improving the repair efficiency. The movable sleeve 1 is rotatably fitted around the outer circumference of the two fixed sleeves 18. In this embodiment, three connecting rods 4 are arranged in an array. In other embodiments, four, five, etc., connecting rods 4 can be provided to meet actual usage requirements.

[0043] Specifically, such as Figure 2 , 3 As shown, the two fixed sleeves 18 are entirely inside the movable sleeve 1, and the two fixed sleeves 18 are symmetrically arranged in the front-rear direction with the front and rear midpoints of the movable sleeve 1 as the basis. The fixed sleeves 18 facilitate the rotational engagement between the movable sleeve 1 and the central frame 20, while the two fixed sleeves 18 help maintain the stability of the movable sleeve 1.

[0044] On the front and rear sides of the inner cavity of the movable sleeve 1, a rotating bearing 19 is respectively connected to two fixed sleeves 18 for rotatable engagement. The rotating mechanism 23 includes an internal gear ring 10, a drive motor 12 and a gear module 11, wherein the internal gear ring 10 is located at the middle of the inner circumferential surface of the movable sleeve 1 and is located between the two fixed sleeves 18.

[0045] A placement frame 13 is fixedly installed inside the connecting rod 4. Both the drive motor 12 and the controller 2 are fixedly mounted on the placement frame 13, and the controller 2 simultaneously controls the rotation of the drive motor 12. A gear module 11 is rotatably mounted on the placement frame 13, and the rotation axis of the drive motor 12 extends in the front-to-back direction. The output shaft of the drive motor 12 is connected to the gear module 11, which meshes with the internal gear ring 10 for transmission. Driven by the drive motor 12, the gear module 11 rotates, thereby rotating the internal gear ring 10 and realizing the rotation of the movable sleeve 1.

[0046] This configuration utilizes the internal gear ring 10, drive motor 12, and gear module 11 to rotate the movable sleeve 1, allowing precise control of the rotation speed and angle of the movable sleeve 1, ensuring that the ultraviolet lamp 9 adjusts the irradiation angle according to the set requirements.

[0047] Preferably, in this embodiment, such as Figure 2 As shown, gear module 11 is a reduction gear set consisting of two gears. Using the reduction gear set improves the smoothness of the rotation of the movable sleeve 1, and also makes it easier to precisely control the irradiation angle and rotation speed.

[0048] Preferably, in this embodiment, the end face of the internal gear ring 10 is at least in stop engagement with the fixed sleeve 18 on one side. This prevents the movable sleeve 1 from axially displacing during rotation, while maintaining good meshing between the internal gear ring 10 and the gear module 11, ensuring stable rotation of the movable sleeve 1.

[0049] In this embodiment, preferably, such as Figure 2 , 3 As shown in Figure 4, the variable diameter mechanism 29 includes a movable disk 6, traveling rods 7, and a drive mechanism 5. The movable disk 6 is parallel to the end of the central frame 20, and their center lines coincide. Multiple traveling rods 7 are arranged in a circumferential array. The inner end of each traveling rod 7 is rotatably mounted on the movable disk 6, and the traveling wheel 8 is rotatably mounted on the upper end of the traveling rod 7. The middle part of each traveling rod 7 is rotatably mounted on the central frame 20 and can slide on the central frame 20. The drive mechanism 5 drives the movable disk 6 to move in the front-back direction to synchronously change the opening and closing angle of each traveling rod 7.

[0050] This configuration of the drive mechanism 5 drives the movable disc 6 to move in the front-to-back direction, causing the opening and closing angle of the traveling rod 7 of the annular array to change synchronously, which in turn drives the traveling wheel 8 to move radially, thus adapting to changes in pipe diameter. It is simple to operate and easy to maintain.

[0051] Specifically, in this embodiment, three travel rods 7 are arranged in a circular array along the rotation axis of the movable sleeve 1. In other embodiments, four, six, or other travel rods 7 can be arranged in a circular array to meet actual usage requirements. The movable disk 6 is arranged parallel to the inner side of the guide frame 3, and the inner end of the travel rod 7 is installed on the movable disk 6 through the gap between adjacent connecting rods 4. Specifically, at the edge of the movable disk 6 corresponding to the position of the inner end of each travel rod 7, a rotation notch 24 adapted to the travel rod 7 is provided, and the inner end of the travel rod 7 is rotatably installed in the corresponding rotation notch 24.

[0052] The guide frame 3 has a rotation notch 25 corresponding to the position of the travel rod 7. The middle side of the travel rod 7 has a guide groove 17 extending along its length. A sliding shaft 16 is installed inside the rotation notch 25. The sliding shaft 16 is rotatably inserted into the guide groove 17 and slides in cooperation with the guide groove 17. The cooperation between the rotation notch 25 at the end of the middle frame 20, the guide groove 17 on the travel rod 7, and the sliding shaft 16 provides stable guidance for the sliding of the travel rod 7 during rotation.

[0053] When the movable disc 6 drives the travel rod 7 to move, the travel rod 7 uses the guide groove 17 to slide relative to the sliding shaft 16 while rotating, changing the opening and closing angle, ensuring that the travel rod 7 moves smoothly, avoiding jamming or deviation, ensuring the normal operation of the diameter changing mechanism 29, and improving the stability of the equipment.

[0054] Specifically, in this embodiment, such as Figure 2 As shown, the opening of the rotating notch 25 is arranged opposite to the guide frame 3, the guide groove 17 passes through the two opposite sides of the travel rod 7 along the width direction of the pipe, and the two ends of the sliding shaft 16 are respectively connected to the two sides of the rotating notch 25.

[0055] Of course, in other embodiments, to meet actual usage requirements, the rotation notch 25 may not be provided on the guide frame 3. Instead, two parallel and spaced upright plates may be installed on the guide frame 3 at the position corresponding to each travel rod 7, with the gap between the two upright plates forming the rotation notch 25. Alternatively, in other embodiments, the rotation notch 25 may not be provided. Instead, a single upright plate may be installed on the guide frame 3 at the position corresponding to the travel rod 7, and a rotation shaft may be fixed on the side of the single upright plate. This can also achieve the rotation and sliding action of the travel rod 7.

[0056] The drive mechanism 5 includes a motor 14 and a drive screw 15. The motor 14 drives the drive screw 15 to rotate, and its rotation axis extends in the front-back direction. The center of the movable disk 6 is provided with a threaded through hole, and the drive screw 15 is threadedly engaged with the threaded through hole.

[0057] Specifically, the housing of the motor 14 is fixedly mounted on the outer side of the guide frame 3. The output shaft of the motor 14 is coaxially arranged with the drive screw 15, and the output shaft of the motor 14 passes through the guide frame 3 and is fixedly connected to the outer end of the drive screw 15. The motor 14 controls the rotation of the drive screw 15, thereby adjusting the opening and closing angle of the travel rod 7. The drive screw 15 and the movable disk 6 form a screw-nut mechanism. Using the motor 14 and the drive screw 15 as the drive mechanism 5, the rotational motion is converted into the linear movement of the movable disk 6, which can accurately control the movement distance of the movable disk 6 and facilitate precise adjustment of the opening and closing angle of the travel rod 7.

[0058] Preferably, in this embodiment, such as Figure 5 As shown, the outer end of the travel rod 7 is provided with a mounting hole 30, and a wheel axle 26 is installed in the mounting hole 30 to prevent rotation. The travel wheel 8 is rotatably mounted on the wheel axle 26. The pressure sensing device includes a pressure sensor 27, which is disposed between the wheel axle 26 and the mounting hole 30.

[0059] The pressure sensor 27 is positioned between the axle 26 and the mounting hole 30, enabling direct and accurate sensing of the pressure between the traveling wheel 8 and the pipe. The pressure generated by the contact between the traveling wheel 8 and the pipe is transmitted to the pressure sensor 27 via the axle 26. The pressure sensor 27 converts the pressure signal into an electrical signal and transmits it to the controller 2, providing accurate data for the controller 2 to control the diameter-changing mechanism 29, ensuring that the equipment can adapt to pipe diameter changes in a timely and accurate manner.

[0060] Specifically, the axle 26 is anti-rotatingly engaged with the mounting hole 30 via a key 28. Both ends of the axle 26 are exposed above the mounting holes 30, and a travel wheel 8 is rotatably mounted at each end. The pressure sensor 27 is a strain gauge type pressure sensor, attached to the circumferential surface of the axle 26 facing the inner end of the travel rod 7. The key 28 is located on the circumferential surface of the axle 26 facing the outer end of the travel rod 7. Both the pressure sensor 27 and the motor 14 are electrically connected to the controller 2. In other embodiments, a tire can be wrapped around the outer circumference of the travel wheel 8, and the pressure sensor 27 can be positioned between the outer side of the travel wheel 8 and the inner side of the tire.

[0061] Preferably, in this embodiment, one of the multiple traveling wheels 8 in each group of traveling mechanisms 21 is an electric wheel. The electric wheel is electrically connected to the controller 2, and the controller 2 controls the rotation of the electric wheel. In other embodiments, all three groups of traveling wheels 8 may be electric wheels.

[0062] The controller 2 controls the rotation of the drive motor 12 to rotate the ultraviolet lamp 9 for irradiation, and controls the rotation of the electric wheel to enable the equipment to move automatically along the pipeline. At the same time, the controller 2 controls the travel speed of the traveling wheel 8 and the rotation speed of the ultraviolet lamp 9, so as to maintain a relatively fast travel speed while ensuring the uniform irradiation effect of the ultraviolet lamp 9, achieving a balance between travel speed and irradiation effect, and ensuring smooth travel, thus realizing automated pipeline curing and repair operations.

[0063] On the other hand, during equipment movement, especially when pipe diameter changes or the internal environment of the pipeline is complex, the electric wheels can provide additional power. When the pipe diameter increases and the moving resistance increases, the electric wheels can assist the equipment to move smoothly, avoiding equipment stagnation or bumping due to excessive resistance, and further improving the equipment's ability to pass through pipelines of different diameters and the continuity of repair operations.

[0064] In this embodiment, the controller 2, drive motor 12, ultraviolet lamp 9, and electric wheels are all powered by a power source. In this embodiment, the controller 2 can be remotely controlled by personnel via wired or wireless means.

[0065] The operational process for this application is as follows:

[0066] When repair work is required, first, according to the pipe diameter, control the motor 14 to rotate, drive the movable plate 6 to move back and forth, adjust the opening and closing angle of the travel rod 7 so that the travel wheels 8 of each travel mechanism 21 can effectively abut against the inner wall of the pipe, and install the repair equipment on the pipe to be repaired.

[0067] Controller 2 starts drive motor 12, which drives internal gear ring 10 to rotate via gear module 11. This causes each ultraviolet lamp 9 on movable sleeve 1 to rotate around its axis, with the rotation angle controlled between 0 and 360 degrees. After reaching the limit angle, controller 2 controls drive motor 12 to rotate in the opposite direction to prevent cable entanglement. Simultaneously, controller 2 controls electric wheel to rotate, driving the equipment to move smoothly within the pipeline. The ultraviolet lamps 9 provide spiral irradiation during movement, uniformly irradiating the inner wall of the pipeline with ultraviolet light, thus curing the repair material.

[0068] Meanwhile, the pressure sensor 27 transmits the pressure of the traveling wheel 8 on the pipeline to the controller 2. The controller 2 determines whether the traveling wheel 8 is tightly attached to the inner wall of the pipeline. When the pressure decreases and is less than the set value, it is determined that the inner diameter of the pipeline has increased. The controller 2 controls the motor 14 to rotate forward, and drives the screw 15 to move the movable disc 6 toward the guide frame 3 on the corresponding side. The opening and closing angles of each traveling rod 7 increase synchronously, and the outer diameter of each traveling wheel 8 increases until the pressure value meets the set value, adapting to the increased pipe diameter requirement.

[0069] As the pressure gradually increases, it is determined that the inner diameter of the pipe is decreasing. The controller 2 controls the motor 14 to reverse, and the drive screw 15 drives the movable disc 6 to move away from the guide frame 3 on its corresponding side. The opening and closing angles of each travel rod 7 decrease synchronously, and the outer diameter of each travel wheel 8 decreases to adapt to the need for a smaller pipe diameter.

[0070] Throughout the entire process, the traveling mechanism 21, the rotating mechanism 23, the driving mechanism 5, and the controller 2 work together to ensure that the repair material is effectively and uniformly cured, achieving the desired repair effect.

[0071] Example 2: This example provides a different driving mechanism. Unlike Example 1, in this example, when meeting actual usage requirements, the drive motor can be set inside the guide frame and protected by the guide frame.

[0072] Example 3: This example provides a different driving mechanism. Unlike Example 1, in this example, the movable plate can be set on the outside of the guide frame when meeting actual usage requirements.

[0073] Example 4: This example provides a different driving mechanism. Unlike Example 1, in this example, when meeting actual usage requirements, the driving mechanism can be a driving cylinder. The two ends of the driving cylinder are connected to the movable disc and the guide frame, respectively. The driving path of the driving cylinder extends in the front-back direction. The driving cylinder drives the movable disc to move in the front-back direction, thereby realizing the opening and closing of the travel rod.

[0074] Example 5: This example provides a different diameter changing mechanism. Unlike Example 1, in this example, to meet actual usage requirements, the diameter changing mechanism includes multiple drive cylinders that are adapted to the traveling wheel. One end of the drive cylinder is fixedly installed on the central frame, and the other end is rotatably installed on the traveling wheel. The drive cylinders are arranged in a circular array along the axis of the movable sleeve. The controller controls the synchronous action of each drive cylinder to drive the traveling wheel to move synchronously, thereby realizing the diameter changing.

[0075] This invention provides an embodiment of a UV curing lamp holder for pipeline repair. The structure of the UV curing lamp holder for pipeline repair in this invention is the same as that of the UV curing lamp holder for the UV curing repair equipment for pipeline repair in any of the above embodiments, and will not be described again here.

[0076] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

[0077] In the description of the embodiments of this application, it should be noted that if terms such as "upper," "lower," "horizontal," or "inner" 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 utility model product is in use, they are only for the convenience of describing this application 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 on this application. In addition, terms such as "first" and "second" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0078] Furthermore, the use of the term "horizontal" does not imply that the component must be absolutely horizontal, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

Claims

1. An ultraviolet light curing fixture for pipe repair, characterized by, The system includes a central frame, a traveling mechanism, and a controller. A group of traveling mechanisms is installed at each of the front and rear ends of the central frame. Each traveling mechanism includes traveling wheels, a diameter-changing mechanism, and a pressure sensing device. Multiple traveling wheels are arranged in a circular array around the central frame in the circumferential direction. The diameter-changing mechanism connects the traveling wheels and the central frame, driving each traveling wheel to move synchronously along the radial direction of the pipe to change the outer diameter of each traveling wheel. The pressure sensing device is used to sense the pressure between the traveling wheels and the pipe. The controller is used to control the operation of the diameter-changing mechanism based on the pressure.

2. The ultraviolet light cure rack for pipe rehabilitation of claim 1, wherein, The diameter-changing mechanism includes a movable disc, a traveling rod, and a drive mechanism. The movable disc is parallel to the end of the central frame and their center lines coincide. Multiple traveling rods are arranged in a circumferential array. The inner end of each traveling rod is rotatably mounted on the movable disc, and a traveling wheel is rotatably mounted on the upper end of the traveling rod. The middle part of each traveling rod is rotatably mounted on the central frame and can slide on the central frame. The drive mechanism drives the movable disc to move in the front-back direction to synchronously change the opening and closing angle of each traveling rod.

3. The ultraviolet light cure fixture for pipe rehabilitation of claim 2, wherein, The driving mechanism includes a motor and a drive screw. The motor is fixedly mounted on the central frame. The motor drives the drive screw to rotate, and its rotation axis extends in the front-back direction. A threaded through hole is opened in the center of the movable disk, and the drive screw is threadedly engaged with the threaded through hole.

4. The ultraviolet light cure fixture for pipe rehabilitation of claim 2, wherein, The end of the central frame is provided with a rotation notch, and the middle side of the traveling rod is provided with a guide groove extending along its length. A sliding shaft is provided in the rotation notch, and the sliding shaft is rotatably inserted in the guide groove and slides in cooperation with the guide groove.

5. The ultraviolet light cure fixture for pipe rehabilitation of claim 2, wherein, The movable disc is provided with a matching rotating notch at the position of the inner end of each of the travel rods, and the inner end of the travel rod is rotatably installed in the rotating notch.

6. The ultraviolet light cure fixture for pipe rehabilitation of claim 2, wherein, The outer end of the travel rod is provided with a mounting hole, and a wheel axle is installed in the mounting hole to prevent rotation. The travel wheel is rotatably mounted on the wheel axle. The pressure sensing device includes a pressure sensor, which is disposed between the wheel axle and the mounting hole.

7. The ultraviolet light cure fixture for pipe rehabilitation of claim 1, wherein, Of the plurality of traveling wheels in each group of traveling mechanisms, at least one is an electric wheel.

8. An ultraviolet light cured repair apparatus for pipe repair, characterized by, The device includes a UV curing lamp holder, on which a UV lamp is mounted, and a power supply for supplying power to the UV lamp. The UV curing lamp holder is any one of the UV curing lamp holders for pipe repair as described in claims 1 to 7.

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