A device for repairing a natural gas pipeline ultraviolet light cured lining

Abstract

The utility model discloses a natural gas pipeline ultraviolet light solidification inner lining repair device, including two fixed bases, a plurality of ultraviolet lamp tubes, a plurality of supporting plates and connecting pieces are arranged between two fixed bases, two fixed bases all are provided with thread groove, and all be connected with supporting structure in two thread grooves, and all rotatable sleeve sets up limiting ring on two fixed bases, all be connected with linkage structure on two limiting rings, and all be connected with dismounting structure on two supporting structures, the utility model discloses, through the roller of setting around can play the supporting effect for ultraviolet lamp tube, ensure that ultraviolet lamp tube can be located in the center position of pipeline inner lining to carry out solidification, and through the rotation thread ring can control the roller around simultaneously to contract or expand outward to the inside, so as to be applicable to the pipeline inner lining of different size, and when adjusting, do not need single operation, more convenient, after adjusting, can utilize the resistance pressure screw rod and press on the fixed seat surface, improve the stability of movable leg and the roller.

Description

Technical Field

[0001] This utility model relates to the field of ultraviolet curing technology, specifically to a device for repairing the lining of a natural gas pipeline using ultraviolet curing. Background Technology

[0002] The UV curing lining repair device for natural gas pipelines is a device used for trenchless repair of natural gas pipelines. It is mainly based on UV curing technology. By inserting a lining tube soaked in photosensitive resin into the pipeline, the resin is cured by UV irradiation to form a high-strength new lining tube, thereby achieving the repair of old pipelines.

[0003] Chinese Patent Publication No. CN220706759U discloses a lamp holder structure for trenchless UV-curing pipe repair, including multiple fixed seats, connectors and UV lamps between adjacent fixed seats, UV lamps arranged in a ring array on the outside of the connectors, a support plate on the side of the UV lamps facing the connectors, multiple sliding blocks slidably connected to the sides of the fixed seats, an adjusting rod on the fixed seats to drive the sliding blocks, sliders symmetrically slidably connected to the sliders, rollers rotatably connected between two sliders, and a spring between the sliders and the sliding blocks. The advantages of this invention are: it solves the technical problem of uneven curing during existing UV lamp irradiation curing, avoids obstructing the irradiation direction of the UV lamp, and allows the height of the UV lamp to be adaptively adjusted according to pipes of different sizes, ensuring comprehensive and uniform irradiation, and improving the curing effect and uniformity.

[0004] In the aforementioned prior art, the setting of four rollers can provide support for the ultraviolet lamp tube in the pipe lining, and the distance can be adjusted according to the pipe size. However, when adjusting the distance of the rollers, the device needs to be adjusted one by one in sequence, which is relatively unchanging and is prone to inconsistent adjustment distances, causing the ultraviolet lamp tube to deviate from the center position of the ultraviolet lamp tube, resulting in uneven curing.

[0005] In view of this, it is necessary to propose a UV curing lining repair device for natural gas pipelines to solve or at least alleviate the above-mentioned defects. Utility Model Content

[0006] The purpose of this utility model is to provide a UV curing lining repair device for natural gas pipelines, in order to solve the problem that the UV curing lining repair device mentioned in the background art requires adjusting the roller distance one by one in sequence, which is relatively unchanging and prone to inconsistent adjustment distances, causing the UV lamp to deviate from the center position of the UV lamp and resulting in uneven curing.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a natural gas pipeline ultraviolet curing lining repair device, comprising two fixed seats, a plurality of ultraviolet lamps, a plurality of support plates and connectors arranged between the two fixed seats, each of the two fixed seats being provided with a threaded groove, each of the two threaded grooves being connected to a support structure, each of the two fixed seats being rotatably fitted with a limiting ring, each of the two limiting rings being connected to a linkage structure, and each of the two support structures being connected to a disassembly and assembly structure.

[0008] Preferably, the support structure includes a threaded ring, which is threadedly fitted into a threaded groove. Several movable legs are rotatably mounted on the threaded ring, and insert rods are inserted into the movable legs. A U-shaped frame is installed at one end of the insert rod, and rollers are rotatably mounted on the U-shaped frame.

[0009] Preferably, the linkage structure includes several connecting seats, which are mounted on the limiting ring. A connecting rod is rotatably mounted on the connecting seat, and the connecting rod is rotatably mounted on one side of the movable leg.

[0010] Preferably, the fixed base has a limiting groove, and the limiting ring is rotatably installed in the limiting groove.

[0011] Preferably, the limiting ring is equipped with a plurality of L-shaped threaded plates, and the internal threads of the L-shaped threaded plates are fitted with pressing screws, one end of which is pressed against the surface of the fixed seat.

[0012] Preferably, the disassembly and assembly structure includes a socket, which is opened inside the movable leg. A plug rod is inserted into the socket, a first magnetic block is installed on the inner wall of the socket, and a second magnetic block is installed at one end of the plug rod. The first magnetic block and the second magnetic block are magnetically connected to each other.

[0013] Preferably, two connecting plates are symmetrically installed on one side of the U-shaped frame, a fixed shaft is installed between the two connecting plates, a retaining plate is rotatably sleeved on the fixed shaft, a retaining groove is opened on one side of the movable leg, and one end of the retaining plate is engaged in the retaining groove.

[0014] Preferably, one end of the torsion spring is mounted on the fixed shaft, and the other end of the torsion spring is mounted on the inner wall of the clamping plate.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] (1) In this utility model, the rollers arranged around the perimeter can support the ultraviolet lamp tube, ensuring that the ultraviolet lamp tube can be located in the center of the pipe lining for curing. Furthermore, by rotating the threaded ring, the rollers around the perimeter can be controlled to contract inward or expand outward simultaneously, so as to be suitable for pipe linings of different sizes. Moreover, no individual operation is required during adjustment, which is more convenient. After adjustment, the pressure screw can be used to press on the surface of the fixed seat to improve the stability of the movable leg and the rollers.

[0017] (2) By pressing the clamps on both sides, the connection between the movable leg and the insert rod can be released. At this time, the insert rod can be pulled out by pulling the U-shaped frame, so that the roller can be removed so that the worn roller can be replaced quickly, ensuring the normal operation of the curing fixture. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the movable leg connection structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the exploded structure of the threaded ring of this utility model;

[0021] Figure 4 This is a schematic diagram of the movable leg structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the cross-sectional structure of the movable leg of this utility model;

[0023] The purpose, features, and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings.

[0024] Explanation of icon numbers:

[0025] 100. Fixed base; 101. UV lamp tube; 102. Connector; 103. Support plate; 200. Threaded groove; 201. Threaded ring; 202. Movable leg; 203. Insert rod; 204. U-shaped frame; 205. Roller; 300. Limiting ring; 301. Connecting base; 302. Connecting rod; 303. Limiting groove; 304. L-shaped threaded plate; 305. Pressing screw; 400. Insertion hole; 401. Magnetic block one; 402. Magnetic block two; 403. Connecting plate; 404. Fixed shaft; 405. Clamping plate; 406. Clamping slot; 407. Torsion spring. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Example 1: Please refer to Figure 1-5This utility model provides a technical solution: a natural gas pipeline ultraviolet curing lining repair device, including two fixed seats 100, a plurality of ultraviolet lamps 101, a plurality of support plates 103 and connectors 102 are arranged between the two fixed seats 100, each fixed seat 100 is provided with a threaded groove 200, and a support structure is connected in each of the two threaded grooves 200. The support structure is used to support the pipeline lining and to support the ultraviolet lamps 101. Each fixed seat 100 is rotatably fitted with a limiting ring 300, and each limiting ring 300 is connected with a linkage structure. The linkage structure is used to adjust the support range of the support structure. Each support structure is connected with a disassembly and assembly structure, which is used to facilitate the disassembly and replacement of the support components of the support structure.

[0028] Furthermore, the support structure includes a threaded ring 201, which is threadedly fitted into a threaded groove 200. Several movable legs 202 are rotatably mounted on the threaded ring 201. Insert rods 203 are inserted into the movable legs 202. A U-shaped frame 204 is installed at one end of the insert rod 203. Rollers 205 are rotatably mounted on the U-shaped frame 204. The several movable legs 202 and rollers 205 can support the ultraviolet lamp tube 101 at the center of the pipe lining.

[0029] Furthermore, the linkage structure includes several connecting seats 301, which are mounted on the limiting ring 300. A connecting rod 302 is rotatably mounted on the connecting seat 301 and is rotatably mounted on one side of the movable leg 202. Rotating the threaded ring 201 allows it to move through the threaded engagement with the threaded groove 200, so that the threaded ring 201 can drive the movable legs 202 around it to move. When the movable leg 202 moves, it will be affected by the connection of the connecting rod 302 and will flip. During the process, the movable leg 202 can drive the connecting seat 301 to move in a circular motion through the connecting rod 302, thereby driving the limiting ring 300 to rotate in the limiting groove 303. When the angle of the limiting ring 300 is fixed, the threaded ring 201 will also be affected and will not be able to rotate.

[0030] Furthermore, a limiting groove 303 is provided on the fixed base 100, and the limiting ring 300 is rotatably installed in the limiting groove 303. When the limiting ring 300 rotates, it can rotate within the limiting groove 303. The setting of the limiting groove 303 can limit the rotation position of the limiting ring 300 and prevent it from shifting or loosening.

[0031] Furthermore, several L-shaped threaded plates 304 are installed on the limiting ring 300. The internal threads of the L-shaped threaded plates 304 are fitted with pressing screws 305. One end of the pressing screws 305 is pressed against the surface of the fixed seat 100. Rotating the pressing screws 305 allows them to move through the threaded engagement with the L-shaped threaded plates 304, so that the pressing screws 305 can press against the surface of the fixed seat 100, thereby reinforcing the position of the limiting ring 300.

[0032] Example 2: Figure 2-5 To facilitate quick replacement of worn rollers 205, a disassembly and assembly structure is provided. This structure includes a socket 400 located inside the movable leg 202. A rod 203 is inserted into the socket 400. A first magnet 401 is installed on the inner wall of the socket 400, and a second magnet 402 is installed at one end of the rod 203. The first and second magnets 401 are magnetically connected. Two connecting plates 403 are symmetrically installed on one side of the U-shaped frame 204. A fixed shaft 404 is installed between the two connecting plates 403, and a retaining plate 405 is rotatably mounted on the fixed shaft 404. One of the movable legs 202... A slot 406 is provided on the side, and one end of the card plate 405 is engaged in the slot 406. One end of the torsion spring 407 is installed on the fixed shaft 404, and the other end of the torsion spring 407 is installed on the inner wall of the card plate 405. By pressing the card plates 405 on both sides, they can rotate on the fixed shaft 404 and compress the torsion spring 407. At the same time, one end of the card plate 405 is lifted up and disengaged from the slot 406. At this time, pulling the U-shaped frame 204 can drive the magnetic block 202 on the insertion rod 203 to disengage from the magnetic block 1 401, thereby allowing the U-shaped frame 204 and the roller 205 to be removed from the movable leg 202. The remaining features are the same as in Embodiment 1.

[0033] The working principle is as follows: During use, the corresponding pressing screw 305 is rotated. As the pressing screw 305 rotates, it moves through the threaded engagement with the L-shaped threaded plate 304, causing it to disengage from the surface of the fixed seat 100. This releases the restriction on the limiting ring 300. Then, the threaded ring 201 is rotated, moving through the threaded engagement with the threaded groove 200. This causes the threaded ring 201 to move the surrounding movable legs 202. As the movable legs 202 move, they are affected by the connecting rod 302 and rotate, thus causing all surrounding movable legs 202 to rotate simultaneously. The movable leg 202 can drive the connecting seat 301 to rotate circumferentially via the connecting rod 302, thereby causing the limiting ring 300 to rotate within the limiting groove 303. By adjusting the rotation direction of the threaded ring 201, the surrounding rollers 205 can be controlled to contract inward or expand outward, so that they can support the lining of pipes of different sizes. After the lining is cured by using the ultraviolet lamp 101, and after adjustment, the reverse rotation of the pressing screw 305 makes it press against the surface of the fixed seat 100 again, which can reinforce the limiting ring 300. Combined with the self-locking of the threads of the threaded ring 201 and the threaded groove 200, its stability can be improved.

[0034] By pressing the two side plates 405, it can rotate on the fixed shaft 404 and compress the torsion spring 407. At the same time, one end of the plate 405 is lifted and disengaged from the slot 406. At this time, pulling the U-shaped frame 204 can cause the second magnetic block 402 on the insertion rod 203 to disengage from the first magnetic block 401, thereby removing the U-shaped frame 204 and the roller 205 from the movable leg 202 for quick replacement of the worn roller 205. During installation, the insertion rod 203 is reinserted into the insertion hole 400, causing the second magnetic block 402 to be attracted to the first magnetic block 401 for positioning. Then, the two side plates 405 are released. At this time, the retracted torsion spring 407 will cause the plate 405 to flip and reset, so that the plate 405 is re-engaged in the corresponding slot 406, thus completing the installation operation.

[0035] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A UV-curing lining repair device for natural gas pipelines, comprising two fixed seats (100), wherein a plurality of UV lamps (101), a plurality of support plates (103), and a connector (102) are disposed between the two fixed seats (100), characterized in that: Both of the fixed seats (100) are provided with threaded grooves (200), and both threaded grooves (200) are connected to support structures. Both fixed seats (100) are rotatably fitted with limit rings (300), both limit rings (300) are connected to linkage structures, and both support structures are connected to disassembly and assembly structures.

2. A natural gas pipeline ultraviolet light cured in place lining repair apparatus as defined in claim 1, wherein: The support structure includes a threaded ring (201), which is threaded in a threaded groove (200). Several movable legs (202) are rotatably mounted on the threaded ring (201). Insert rods (203) are inserted inside the movable legs (202). A U-shaped frame (204) is installed at one end of the insert rod (203). Rollers (205) are rotatably mounted on the U-shaped frame (204).

3. A natural gas pipeline ultraviolet light cured in place lining repair apparatus as defined in claim 1, wherein: The linkage structure includes several connecting seats (301), the connecting seats (301) are installed on the limiting ring (300), and a connecting rod (302) is rotatably installed on the connecting seat (301). The connecting rod (302) is rotatably installed on one side of the movable leg (202).

4. A natural gas pipeline ultraviolet light cured in place lining repair apparatus as defined in claim 1, wherein: The fixed base (100) has a limiting groove (303) and the limiting ring (300) is rotatably installed in the limiting groove (303).

5. A natural gas pipeline ultraviolet light cured in place lining rehabilitation apparatus as defined in claim 1, wherein: The limiting ring (300) is equipped with several L-shaped threaded plates (304), and the internal threads of the L-shaped threaded plates (304) are fitted with pressing screws (305), one end of which is pressed against the surface of the fixed seat (100).

6. A natural gas pipeline ultraviolet light cured in place lining repair apparatus as defined in claim 1, wherein: The disassembly and assembly structure includes a socket (400), which is located inside the movable leg (202). A plug rod (203) is inserted into the socket (400). A first magnet (401) is installed on the inner wall of the socket (400), and a second magnet (402) is installed at one end of the plug rod (203). The first magnet (401) and the second magnet (402) are magnetically connected to each other.

7. A natural gas pipeline ultraviolet light cured in place lining repair apparatus as defined in claim 2 wherein: Two connecting plates (403) are symmetrically installed on one side of the U-shaped frame (204). A fixed shaft (404) is installed between the two connecting plates (403). A clamping plate (405) is rotatably sleeved on the fixed shaft (404). A slot (406) is opened on one side of the movable leg (202). One end of the clamping plate (405) is engaged in the slot (406).

8. The UV-curing lining repair device for natural gas pipelines according to claim 7, characterized in that: One end of a torsion spring (407) is mounted on the fixed shaft (404), and the other end of the torsion spring (407) is mounted on the inner wall of the clamping plate (405).

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