A small-diameter ultraviolet light-cured repair lamp stand and a method of using the same

Abstract

The present application relates to the technical field of pipeline repair, in particular to a small-diameter ultraviolet light curing repair lamp holder and its use method, comprising a probe plate, a plurality of support frames are slidably installed on the probe plate and arranged from top to bottom, a support plate is fixedly installed on one side of the support frame, a center rod is rotatably installed in the middle of the support plate, a lifting sleeve is threadedly rotatably installed on the outside of the center rod, and a connecting rod is fixedly installed on the lower end surface of the support frame, the present application can synchronously complete pipeline center positioning, light channel unlocking, ultraviolet light extension curing and other operations through single power input and screw lifting pair transmission structure, can automatically realize coaxial center positioning of the overall structure and the pipeline, solve the eccentricity and shaking problems of small-diameter operation equipment, guarantee the light operation reference accuracy, adopt the ultraviolet light self-adaptive extension structure arranged in a ring shape, can realize omnidirectional no-dead-angle light irradiation on the inner wall of the pipeline, ensure uniform resin lining curing, and effectively improve the problems of traditional curing hollowing, incompleteness and the like.

Description

Technical Field

[0001] This invention relates to the field of pipeline repair technology, specifically a small-diameter ultraviolet curing repair lamp holder and its usage method. Background Technology

[0002] With the continuous development of urban underground pipeline network operation and maintenance technology, trenchless ultraviolet curing repair technology has been widely used in the repair of aging, damage and collapse of small-diameter municipal sewage and rainwater pipes due to its advantages of minimal road surface damage, high construction efficiency and good repair effect. Traditional UV lamp holders lack an adaptive centering and positioning structure. When working inside narrow, small-diameter pipes, the lamp holders are prone to eccentricity and wobbling, resulting in uneven UV illumination spacing. Furthermore, the fixed UV lamp angle of traditional lamp holders creates blind spots, easily causing uneven curing of the pipe lining resin, localized hollow areas, and incomplete curing, severely impacting the structural strength and lifespan of the repaired pipe. Moreover, traditional equipment often features exposed, fixed UV lamps without protective storage structures, making them susceptible to corrosion and damage in complex, damp, and muddy pipe environments. This results in poor equipment adaptability and durability, failing to meet the current demands for high-precision, high-stability, and highly adaptable trenchless repair of small-diameter pipes. Summary of the Invention

[0003] The purpose of this invention is to provide a small-diameter UV curing repair lamp holder and its usage method to solve the problems mentioned in the background art.

[0004] The objective of this invention can be achieved through the following technical solutions: A small-diameter UV curing repair lamp holder includes an insertion plate, on which multiple support frames arranged from top to bottom are slidably mounted. A support plate is fixedly mounted on one side of each support frame. A central rod is rotatably mounted in the middle of the support plate. A lifting sleeve is rotatably fitted onto the external thread of the central rod. A connecting rod is fixedly mounted on the lower end face of the support frame. A positioning cylinder, coaxial with the central rod and located outside it, is fixedly mounted on the lower end of the connecting rod. A lifting frame, rotatably connected to the lifting sleeve, is vertically slidably mounted inside the positioning cylinder. The inner cavity of the positioning cylinder has an abutment part. A curing cylinder communicating with its inner cavity is located at the bottom of the positioning cylinder. The curing cylinder has a light-illuminating part inside.

[0005] Preferably, the abutting part includes a through groove circumferentially opened outside the positioning cylinder, and the abutting part also includes a push-pull plate hinged to the outside of the lifting frame and located in the through groove. Below the push-pull plate is a traction plate hinged to the outside of the positioning cylinder, and the traction plate and the push-pull plate are hinged together by the abutting plate.

[0006] Preferably, the abutting part includes a port circumferentially opened on the curing cylinder, and the abutting part also includes an annular groove opened on the inner wall of the curing cylinder and communicating with multiple ports. An annular frame is rotatably installed in the annular groove, and the annular frame has corresponding grooves that correspond one-to-one with the multiple ports.

[0007] Preferably, the inner cavity of the curing cylinder has multiple arc-shaped grooves communicating with the circumferential grooves. A sliding plate fixed to the circumferential frame is slidably installed in the arc-shaped groove. A ring frame coaxially arranged with the curing cylinder is installed between the multiple sliding plates. A toothed frame is fixedly installed on the inner side of the ring frame.

[0008] Preferably, a bottom rod is fixedly installed at the bottom of the lifting sleeve, and multiple circumferential vertical grooves are opened on the outside of the bottom rod. A gear coaxially arranged with the bottom rod is installed between the multiple vertical grooves, and a tapered piece is fixedly installed at the bottom of the bottom rod.

[0009] Preferably, the gear frame meshes with the gear, and stabilizing plates are fixedly installed on both the upper and lower sides of the gear frame, with the stabilizing plates rotatably connected to the gear.

[0010] Preferably, the illumination section includes a fixed frame that is circumferentially installed in the inner cavity of the curing cylinder and corresponds one-to-one with the opening. A slide rod is slidably installed in the middle of the fixed frame. A wedge block is provided on the side of the slide rod that is close to each other. An ultraviolet lamp is fixedly installed at the end of the slide rod away from the wedge block. A spring is also provided on the outside of the slide rod that abuts between the wedge block and the fixed frame.

[0011] Preferably, a top plate is fixedly installed on one side of the probe plate, and a drive rod is installed at the lower end of the top plate via a motor. The drive rod and the center rod are connected by a pulley mechanism.

[0012] Preferably, the support frame slides on the probe plate via an electric slider. When the support frame slides up and down, the pulley on the drive rod can slide vertically along the rod to adapt to the lifting and lowering displacement of the support frame.

[0013] Another object of the present invention is to provide a method for using a small-diameter ultraviolet curing repair lamp holder, comprising the following steps: S1: Preparations before use: A fiberglass hose impregnated with ultraviolet photosensitive resin is pulled into the section of pipe to be repaired from the wellhead. Both ends are sealed. Compressed air is then injected into the hose to make it completely conform to the old pipe wall without wrinkles or air pockets. The probe plate is then inserted into the inflated hose from one end of the wellhead.

[0014] S2: Light curing: The electric slider starts, causing the support frame to slide and move the positioning cylinder to the working position. The motor drives the drive rod to rotate, which in turn drives the center rod to rotate via a belt pulley mechanism. The center rod drives the lifting sleeve to rotate and move up and down. The lifting sleeve drives the lifting frame to move upward, pulling the push-pull plate in a linkage transmission, driving multiple abutment plates to expand outward and press against the inner wall of the pipe to complete the centering positioning. At the same time, the lifting sleeve drives the gear to rotate, and the meshing transmission drives the ring frame and the circumferential frame to rotate, opening the passage. The lifting sleeve simultaneously raises the conical piece, which squeezes the surrounding wedge blocks, pushing each slide rod to move outward against the spring force. The ultraviolet lamp extends from the passage, emitting ultraviolet light around the inner wall, causing the inner lining resin to cure and form quickly.

[0015] The beneficial effects of this invention are: 1. This invention, through a single power input combined with a screw lifting pair transmission structure, can simultaneously complete multiple operations such as pipeline centering and positioning, light channel unlocking, and ultraviolet lamp extension curing, without the need for multiple independent drives, effectively simplifying the overall structure and reducing equipment failure rate and production costs.

[0016] 2. This invention can automatically achieve coaxial centering positioning of the overall structure and the pipeline, solving the problem of easy eccentricity and shaking of small-diameter operating equipment, ensuring the accuracy of the illumination operation benchmark, and adopting a ring-shaped ultraviolet lamp adaptive extension structure to achieve all-round, no-dead-angle illumination of the inner wall of the pipeline, ensuring uniform curing of the resin lining, effectively improving the problems of hollowing and incomplete curing in traditional methods. The retractable and foldable structure design of the equipment is suitable for various small-diameter working conditions, and can also effectively protect the lamp body. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall front structure of the present invention; Figure 2 This is a schematic diagram of the structure between a set of positioning cylinders and curing cylinders of the present invention; Figure 3 This is a schematic diagram of the orthographic structure of a set of positioning cylinders and curing cylinders of the present invention; Figure 4 This is a schematic diagram of the internal structure of the positioning cylinder and curing cylinder of the present invention; Figure 5 This is the present invention. Figure 5 A magnified structural diagram of part A; Figure 6 This is a top-section schematic diagram of the curing cylinder structure of the present invention; Figure 7 This is a schematic diagram of the structure between the circumferential frame and the corresponding slot of the present invention; Figure 8 This is a schematic diagram of the structure between the gear, tooth frame, and stabilizing plate of the present invention; Figure 9 This is a top-section schematic diagram of the gear and bottom rod structure of the present invention.

[0019] The attached figures are labeled as follows: 1. Probe plate; 101. Top plate; 102. Drive rod; 2. Support frame; 20. Connecting rod; 21. Positioning cylinder; 22. Curing cylinder; 221. Through port; 2210. Circumferential groove; 222. Circumferential frame; 223. Corresponding groove; 224. Arc groove; 225. Slide plate; 211. Through groove; 23. Support plate; 231. Center rod; 232. Lifting sleeve; 233. Bottom rod; 234. Conical part; 24. Lifting frame; 241. Push-pull plate; 25. Abutment plate; 251. Traction plate; 3. Ring frame; 31. Tooth frame; 311. Stabilizing plate; 32. Gear; 33. Fixing frame; 34. Slide rod; 35. Wedge block; 36. Ultraviolet lamp. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Please see Figure 1-9 As shown, the present invention is a small-diameter ultraviolet curing repair lamp holder, including an insertion plate 1. Multiple support frames 2 arranged from top to bottom are slidably installed on the insertion plate 1. A support plate 23 is fixedly installed on one side of the support frame 2. A central rod 231 is rotatably installed in the middle of the support plate 23. A lifting sleeve 232 is rotatably sleeved on the outer thread of the central rod 231. A connecting rod 20 is fixedly installed on the lower end face of the support frame 2. A positioning cylinder 21 coaxially arranged with the central rod 231 and located outside it is fixedly installed at the lower end of the connecting rod 20. A lifting frame 24 rotatably connected to the lifting sleeve 232 is vertically slidably installed inside the positioning cylinder 21. The inner cavity of the positioning cylinder 21 is provided with an abutment part. A curing cylinder 22 communicating with the inner cavity is provided at the bottom of the positioning cylinder 21. The curing cylinder 22 is provided with a light irradiation part inside.

[0022] The probe plate 1 serves as the overall load-bearing base of the equipment, providing fundamental support for the entire machine's insertion into the pipeline. It also provides a vertical sliding mounting track for the support frame 2, ensuring the overall structural stability of the equipment. The top plate 101 is fixed to one side of the probe plate 1, used to fix and install the motor and drive rod 102, providing a stable mounting base for the power transmission structure. The motor drives the drive rod 102 to rotate, and power transmission is achieved through a pulley mechanism. The support frame 2 is slidably mounted on the probe plate 1 via an electric slider, allowing for vertical adjustment of the working height according to the pipeline working depth and diameter. Simultaneously, the pulley on the drive rod 102 can slide vertically along the rod as the support frame 2 rises and falls, adaptively matching displacement changes to achieve power transmission. The entire transmission process is synchronized and seamless, ensuring that height adjustment and power transmission do not interfere with each other. The support plate 23 fixed on the outside of the support frame 2 is used to support the rotating center rod 231, enabling the center rod 231 to rotate stably in the air. The center rod 231 and the lifting sleeve 232 with external thread sleeve form a screw thread lifting pair, which converts the rotational motion of the center rod 231 into the vertical linear lifting motion of the lifting sleeve 232, providing the core power source for subsequent positioning, unlocking, and light extension actions. The connecting rod 20 at the lower end of the support frame 2 is coaxially fixed to the positioning cylinder 21, realizing the coaxial fixation of the positioning cylinder 21, curing cylinder 22 and the upper transmission structure, ensuring the coaxiality of the whole machine operation, and avoiding deviation that affects the curing accuracy.

[0023] The abutting part includes a through groove 211 circumferentially opened outside the positioning cylinder 21. The abutting part also includes a push-pull plate 241 hinged to the outside of the lifting frame 24 and located in the through groove 211. A traction plate 251 hinged to the outside of the positioning cylinder 21 is provided below the push-pull plate 241. The traction plate 251 and the push-pull plate 241 are hinged together by an abutting plate 25.

[0024] When the lifting sleeve 232 is raised or lowered vertically, it drives the lifting frame 24, which is rotatably connected to it, to slide vertically along the inside of the positioning cylinder 21. During the upward movement of the lifting frame 24, it drives multiple sets of push-pull plates 241, which are hinged to its outside and pass through the through groove 211, to move upward synchronously. The push-pull plates 241 are linked to the traction plate 251 and the abutment plate 25, so that the multiple sets of ring-shaped abutment plates 25 expand outward synchronously and tightly abut against the inner wall of the pipe. Through multi-directional synchronous abutment positioning, the curing cylinder 22 and the pipe can be automatically coaxially centered, which completely solves the problem of easy eccentricity and shaking of the light holder for small-diameter pipe operation, and provides a structural basis for subsequent ring-shaped uniform light curing. After the operation is completed, the lifting frame 24 moves downward, which can drive the abutment plate 25 to automatically retract, which facilitates the entry and exit of the equipment from the pipe and is suitable for operation of small-diameter pipes of different specifications.

[0025] The abutting part includes a through-hole 221 circumferentially opened on the curing cylinder 22. The abutting part also includes an annular groove 2210 opened on the inner wall of the curing cylinder 22 and communicating with multiple through-holes 221. An annular frame 222 is rotatably installed in the annular groove 2210. The annular frame 222 is provided with corresponding grooves 223 that correspond one-to-one with the multiple through-holes 221.

[0026] The inner cavity of the curing cylinder 22 has multiple arc-shaped grooves 224 that communicate with the circumferential grooves 2210. Slide plates 225 fixed to the circumferential frame 222 are slidably installed in the arc-shaped grooves 224. A ring frame 3 coaxially arranged with the curing cylinder 22 is installed between the multiple slide plates 225. A toothed frame 31 is fixedly installed on the inner side of the ring frame 3.

[0027] During the rotation and lifting process of the lifting sleeve 232, the bottom rod 233 fixed at the bottom and the coaxial gear 32 rotate synchronously. The gear 32 meshes with the inner tooth frame 31, driving the ring frame 3 to rotate as a whole. The ring frame 3 slides along the arc groove 224 on the inner wall of the curing cylinder 22 via the slide plate 225, driving the ring frame 222 inside the ring groove 2210 to rotate in a ring. When the ring frame 222 rotates, the corresponding groove 223 on its surface coincides with the opening 221 of the curing cylinder 22 one by one, releasing the blocked state of the opening 221 and automatically unlocking the light channel. At the same time, the stabilizing plates 311 on the upper and lower sides of the tooth frame 31 rotate and cooperate with the gear 32, effectively limiting the meshing offset of the gear 32, ensuring smooth and uninterrupted ring transmission, and ensuring that multiple openings 221 open synchronously and accurately.

[0028] The bottom of the lifting sleeve 232 is fixedly installed with a bottom rod 233. The bottom rod 233 has multiple circumferentially arranged vertical grooves on its outside. A gear 32 coaxially arranged with the bottom rod 233 is installed between the multiple vertical grooves. A tapered piece 234 is fixedly installed at the bottom of the bottom rod 233.

[0029] As the opening 221 unlocks, the lifting sleeve 232 continues to move upward, causing the conical component 234 at the bottom of the bottom rod 233 to move upward synchronously. The conical slope of the conical component 234 gradually squeezes the wedge-shaped blocks 35 distributed in a ring around it, converting the vertical lifting force into a horizontal radial thrust. This pushes multiple sets of sliding rods 34 to overcome the spring force and slide horizontally outward along the fixed frame 33. The sliding rods 34 drive the ultraviolet lamps 36 at their ends to extend synchronously from the unlocked opening 221, so that multiple sets of ultraviolet lamps 36 are distributed in a ring inside the pipe lining, emitting ultraviolet light in all directions without dead angles. During the operation, the spring continuously provides a reverse preload force, which can ensure the stability of the sliding rods 34 and prevent the lamps from shaking or shifting. After the operation is completed, the conical component 234 descends to release pressure, and the spring rebounds, causing the ultraviolet lamps 36 to automatically retract into the curing cylinder 22, realizing the lamps' storage and protection.

[0030] The gear frame 31 meshes with the gear 32. Stabilizing plates 311 are fixedly installed on both the upper and lower sides of the gear frame 31, and the stabilizing plates 311 are rotatably connected to the gear 32.

[0031] The illumination section includes a fixing frame 33 circumferentially installed in the inner cavity of the curing cylinder 22 and corresponding one-to-one with the opening 221. A slide rod 34 is slidably installed in the middle of the fixing frame 33. A wedge block 35 is provided on the side of the multiple slide rods 34 that are close to each other. An ultraviolet lamp 36 is fixedly installed at the end of the slide rod 34 away from the wedge block 35. A spring is also provided on the outside of the slide rod 34, which is located between the wedge block 35 and the fixing frame 33 and abuts against it.

[0032] A top plate 101 is fixedly installed on one side of the probe plate 1. A drive rod 102 is installed at the lower end of the top plate 101 via a motor. A pulley mechanism is connected between the drive rod 102 and the center rod 231.

[0033] The support frame 2 slides on the probe plate 1 via an electric slider. When the support frame 2 slides up and down, the pulley on the drive rod 102 can slide vertically along the rod body to adapt to the lifting and lowering displacement of the support frame.

[0034] With just one set of motors driving the center rod 231 to rotate, three core actions can be achieved simultaneously: centering the contact plate 25, automatically unlocking the port 221, and adaptively extending the ultraviolet lamp 36. This eliminates the need for multiple independent drives, simplifies the equipment structure, reduces the probability of failure, and improves the synchronization of operations. The overall structure is compact and retractable. Positioning, light extension, and storage are all automatically and adaptively adjusted, which can be adapted to various specifications of small-diameter pipes and solve the problem of inconvenient operation of repair equipment in narrow spaces. When using this device, first, it is precisely centered and positioned, then the channel is unlocked, and finally the ring light extends outward to cure. Throughout the process, it ensures that the distance between the ultraviolet light and the inner lining wall is uniform, there are no blind spots in the light, and the curing thickness is consistent, effectively avoiding defects such as uneven curing, local hollowing, and incomplete curing that occur in traditional repairs. When not in operation, the ultraviolet lamp 36 is stored inside the curing cylinder 22, which can prevent the lamp body from being worn and corroded by pipe mud and water vapor, thus extending the service life of the equipment. At the same time, the automated telescopic structure greatly reduces the difficulty of manual operation and improves the efficiency of pipeline repair construction.

[0035] Another object of the present invention is to provide a method for using a small-diameter ultraviolet curing repair lamp holder, comprising the following steps: S1: Preparations before use: A glass fiber hose impregnated with ultraviolet photosensitive resin is pulled into the section of pipe to be repaired from the wellhead. Both ends are sealed. Compressed air is then injected into the hose to make it completely conform to the old pipe wall without wrinkles or air pockets. The probe plate 1 is then inserted into the inflated hose from one end of the wellhead.

[0036] S2: Light curing: The electric slider starts, causing the support frame 2 to slide and move the positioning cylinder 21 to the working position; the motor drives the drive rod 102 to rotate, which drives the center rod 231 to rotate via the belt pulley mechanism. The center rod 231 drives the lifting sleeve 232 to rotate and move up and down. The lifting sleeve drives the lifting frame 24 to move upward, pulling the push-pull plate 241 in a linkage transmission, driving multiple abutment plates 25 to expand outward and press against the inner wall of the pipe to complete the centering positioning; at the same time, the lifting sleeve drives the gear 32 to rotate, and the meshing transmission drives the ring frame 3 and the ring frame 222 to rotate, opening the port 221. The lifting sleeve synchronously lifts the conical piece 234, and the conical piece squeezes the surrounding wedge blocks 35, pushing each sliding rod 34 to move outward against the spring force. The ultraviolet lamp 36 extends from the port and emits ultraviolet light around the inner wall, so that the inner lining resin can be cured and formed quickly.

[0037] Working principle: First, the resin-lined flexible hose that fits the inner wall of the pipe is laid out. Then, the probe plate 1 is sent into the pipe. Relying on the probe plate 1 as the bearing base, the electric slider drives the support frame 2 to slide vertically, and the working height can be adaptively adjusted according to the pipe working conditions. At the same time, the pulley on the drive rod 102 can slide adaptively with the rise and fall of the support frame 2, ensuring that the power transmission of the pulley mechanism is synchronized and non-disconnected throughout the process, realizing that the height adjustment and power transmission do not interfere with each other. The top plate 101 provides a stable mounting base for the motor and the drive rod 102. When the motor works, it drives the drive rod 102 to rotate, and transmits the power to the central rod 231 through the pulley mechanism. The support plate 23 provides suspended support for the central rod 231 to ensure its stable rotation. The central rod 231 and the lifting sleeve 232 form a screw thread lifting pair, which can convert the rotational motion of the central rod 231 into the vertical lifting linear motion of the lifting sleeve 232, providing the core power for all the execution actions of the whole machine.The support frame 2 coaxially fixes the positioning cylinder 21 and the curing cylinder 22 via the connecting rod 20, ensuring the coaxiality of the entire machine and providing structural support for precise curing. After the curing operation starts, the lifting sleeve 232 moves upward, driving the lifting frame 24 to slide vertically along the inside of the positioning cylinder 21. The lifting frame 24 drives multiple sets of push-pull plates 241 hinged in the through groove 211 to move synchronously. In conjunction with the traction plate 251, it drives multiple ring-distributed abutment plates 25 to expand outward synchronously, tightly abutting against the inner wall of the pipe, realizing the automatic coaxial centering positioning of the curing cylinder 22 and the pipe, effectively avoiding the problems of equipment eccentricity and shaking during operation; after the operation is completed, it rises... As the lowering frame 24 descends, it automatically retracts the contact plate 25, facilitating the entry and exit of the equipment from the pipeline and adapting to various pipe diameters. Simultaneously with the positioning structure's movement, the lifting sleeve 232 drives the bottom rod 233 and coaxial gear 32 to rotate synchronously. The gear 32 meshes with the toothed frame 31 for transmission, and with the stabilizing plate 311 providing limit and anti-deviation protection, the transmission is smooth and without jamming, thereby driving the ring frame 3 to rotate as a whole. The ring frame 3 slides along the arc-shaped groove 224 of the curing cylinder 22 via the sliding plate 225, driving the annular frame 222 within the annular groove 2210 to rotate in a ring, causing the corresponding groove 223 on the annular frame 222 to engage with the curing cylinder 22. When the openings 221 overlap, the blockage of the openings 221 is automatically released, completing the automatic unlocking of the light channel. During the synchronous unlocking phase of the light channel, the lifting sleeve 232 continues to rise, causing the bottom conical component 234 to rise synchronously. The conical slope compresses the surrounding ring-shaped wedges 35, converting the vertical lifting force into a horizontal radial thrust. This pushes the sliding rods 34 to overcome the spring force and slide outwards along the fixed frame 33, causing the ultraviolet lamps 36 at the ends to extend synchronously from the openings 221. This allows multiple sets of ultraviolet lamps 36 to be arranged in a ring inside the pipe lining, emitting ultraviolet light from all directions without blind spots, thus illuminating the inner wall of the pipe. The grease lining cures evenly and quickly. During operation, the spring continuously provides pre-tightening force to ensure stable operation of the slide bar 34 and the ultraviolet lamp 36 without shaking or deviation. After the curing operation is completed, the motor reverses to drive the center rod 231 to rotate in the opposite direction, which drives the lifting sleeve 232 to move down and reset. The conical part 234 moves down synchronously to release pressure. The spring rebounds and drives the ultraviolet lamp 36 to automatically retract and be stored inside the curing cylinder 22, thus protecting the lamp body. At the same time, the gear 32 reverses to drive the circumferential frame 222 to reset and block the opening 221. The lifting frame 24 moves down and drives the abutment plate 25 to retract and reset. The whole machine completes one complete curing operation process.

[0038] The above description is merely an example and illustration of the concept of the present invention. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the concept of the invention or exceed the scope defined in the claims, they should all fall within the protection scope of the present invention.

Claims

1. A small-diameter ultraviolet curing repair lamp holder, comprising an insertion plate (1), characterized in that, Multiple support frames (2) arranged from top to bottom are slidably installed on the probe plate (1). A support plate (23) is fixedly installed on one side of the support frame (2). A central rod (231) is rotatably installed in the middle of the support plate (23). A lifting sleeve (232) is rotatably sleeved on the outer thread of the central rod (231). A connecting rod (20) is fixedly installed on the lower end face of the support frame (2). A positioning cylinder (21) is fixedly installed at the lower end of the connecting rod (20) and is coaxially arranged with the central rod (231) and located outside it. A lifting frame (24) is rotatably connected to the lifting sleeve (232) and slidably installed vertically inside the positioning cylinder (21). The inner cavity of the positioning cylinder (21) is provided with an abutment part. A curing cylinder (22) communicating with its inner cavity is provided at the bottom of the positioning cylinder (21). A light-illuminating part is provided inside the curing cylinder (22).

2. The small-diameter ultraviolet curing repair lamp holder according to claim 1, characterized in that, The abutting part includes a through groove (211) circumferentially opened outside the positioning cylinder (21). The abutting part also includes a push-pull plate (241) hinged to the outside of the lifting frame (24) and located in the through groove (211). A traction plate (251) hinged to the outside of the positioning cylinder (21) is provided below the push-pull plate (241). The traction plate (251) and the push-pull plate (241) are hinged together by an abutting plate (25).

3. The small-diameter ultraviolet curing repair lamp holder according to claim 2, characterized in that, The abutting part includes a port (221) circumferentially opened on the curing cylinder (22), and the abutting part also includes an annular groove (2210) opened on the inner wall of the curing cylinder (22) and communicating with multiple ports (221). An annular frame (222) is rotatably installed in the annular groove (2210), and a corresponding groove (223) corresponding to each of the multiple ports (221) is opened on the annular frame (222).

4. The small-diameter ultraviolet curing repair lamp holder according to claim 3, characterized in that, The curing cylinder (22) has multiple arc-shaped grooves (224) that communicate with the circumferential groove (2210) in its inner cavity. Slide plates (225) that are fixed to the circumferential frame (222) are slidably installed in the arc-shaped grooves (224). A ring frame (3) that is coaxially arranged with the curing cylinder (22) is installed between the multiple slide plates (225). A tooth frame (31) is fixedly installed on the inner side of the ring frame (3).

5. A small-diameter ultraviolet curing repair lamp holder according to claim 4, characterized in that, The bottom of the lifting sleeve (232) is fixedly installed with a bottom rod (233). The bottom rod (233) has multiple circumferentially arranged vertical grooves on its outside. A gear (32) coaxially arranged with the bottom rod (233) is installed between the multiple vertical grooves. A tapered piece (234) is fixedly installed at the bottom of the bottom rod (233).

6. The small-diameter ultraviolet curing repair lamp holder according to claim 5, characterized in that, The tooth frame (31) meshes with the gear (32), and a stabilizing plate (311) is fixedly installed on both the upper and lower sides of the tooth frame (31). The stabilizing plate (311) and the gear (32) are rotatably connected.

7. A small-diameter UV curing repair lamp holder according to claim 6, characterized in that, The illumination section includes a fixed frame (33) circumferentially installed in the inner cavity of the curing cylinder (22) and corresponding one-to-one with the opening (221). A slide rod (34) is slidably installed in the middle of the fixed frame (33). A wedge block (35) is provided on the side of the multiple slide rods (34) that are close to each other. An ultraviolet lamp (36) is fixedly installed at the end of the slide rod (34) away from the wedge block (35). A spring is also provided on the outside of the slide rod (34) that abuts between the wedge block (35) and the fixed frame (33).

8. A small-diameter UV curing repair lamp holder according to claim 7, characterized in that, A top plate (101) is fixedly installed on one side of the probe plate (1). A drive rod (102) is installed at the lower end of the top plate (101) by a motor. A pulley mechanism is connected between the drive rod (102) and the center rod (231).

9. A small-diameter ultraviolet curing repair lamp holder according to claim 8, characterized in that, The support frame (2) slides on the probe plate (1) via an electric slider. When the support frame (2) slides up and down, the pulley on the drive rod (102) can slide vertically along the rod body to adapt to the lifting and lowering displacement of the support frame.

10. A method of using a small-diameter UV-curing repair lamp holder, applied to the small-diameter UV-curing repair lamp holder as described in claim 9, characterized in that... Includes the following steps: S1: Preparations before use: Pull the glass fiber hose impregnated with ultraviolet photosensitive resin into the pipe section to be repaired from the wellhead, seal both ends, fill the hose with compressed air to make it completely fit the old pipe wall without wrinkles or air pockets, and send the probe plate (1) into the air-filled hose from one end of the wellhead. S2: Light curing: The electric slider starts and drives the support frame (2) to slide, moving the positioning cylinder (21) to the working position; the motor runs and drives the drive rod (102) to rotate, which drives the center rod (231) to rotate through the belt pulley mechanism. The center rod (231) drives the lifting sleeve (232) to rotate and perform lifting and lowering movements. The lifting sleeve drives the lifting frame (24) to move upward, pulling the push-pull plate (241) to drive multiple abutment plates (25) to expand outward and press against the inner wall of the pipe to complete the centering positioning; at the same time, the lifting sleeve drives the gear (32) to rotate, and the meshing transmission drives the ring frame (3) and the ring frame (222) to rotate, opening the port (221). The lifting sleeve synchronously lifts the conical piece (234), and the conical piece squeezes the surrounding wedge blocks (35), pushing each slide rod (34) to move outward against the spring force. The ultraviolet lamp (36) extends from the port and emits ultraviolet light around the inner wall, so that the inner lining resin can be quickly cured and formed.

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