Large pipe diameter ultraviolet light curing repair large end cap

Abstract

The utility model relates to a big pipe diameter ultraviolet light curing repair is with big nipple, including a plurality of semicylinders, its characterized in that, the upper circular arc end face welding of semicylinder has arc strip, the arc strip on welding has screw rod, semicylinder is fastened with fixed block and uses bolt, and splices into a cylinder, the lower circular arc end face welding of semicylinder has step two, and the middle outside circular arc surface welding has step one, the upper and lower two end faces of cylinder install cylinder cover, the middle part mounting of cylinder cover has sealing cover plate A and sealing cover plate B. The utility model will put down semicylinder to the work well piece by piece, and the size and weight of each semicylinder will not be too big, and the downhole operator can easily pick up and put down, and it is also convenient to reassemble in the downhole, step one and step two set up can prevent the soft tube from slipping off, and step one and step two can also strengthen the bending strength of semicylinder, prevent deformation.

Description

Technical Field

[0001] This utility model relates to the field of ultraviolet light curing pipe repair technology, specifically, to a large plug for large-diameter ultraviolet light curing repair. Background Technology

[0002] With social development and increasing human activity, the problem of aging and damage to underground drainage pipe networks is constantly emerging, and more and more places are beginning to carry out pipe repair. Ultraviolet (UV) curing pipe repair technology, as a trenchless repair process that does not damage the environment, causes minimal traffic disruption, and is highly efficient, has become the mainstream pipe repair technology. With the continuous improvement of the maturity of UV curing equipment, the application of UV curing repair technology has gradually expanded from pipe diameters below DN1200mm to pipe diameters of DN1500mm and above. In the construction of UV curing pipe repair technology, a prefabricated UV curing repair hose needs to be pulled into the pipe to be repaired. Then, both ends of the hose are tied with plugs, and air is injected into the hose through the air inlet on the plug, causing the hose to inflate and conform to the original pipe. After the internal air pressure of the hose stabilizes, the plug cover needs to be opened, the UV curing lamp chain is placed into the hose, the cover is replaced, and subsequent curing operations are carried out. The plug binding is a crucial step. If it is not bound tightly, the air pressure inside the hose may not reach the set value, which will affect the curing quality of the hose. Therefore, choosing a suitable plug is an important factor affecting the construction quality and efficiency. In particular, the larger the plug, the heavier it is, and the more difficult it is to assemble, bind and cover it downhole. A reasonable structural design can reduce manpower consumption and improve construction efficiency.

[0003] According to Chinese Patent No. CN 218625996 U, a plug for repairing large-diameter pipes consists of two opposing arc-shaped plates forming a cylinder. The width of each arc-shaped plate is close to half the diameter of the pipe to be repaired. However, most manhole openings are only DN800mm. If the pipe diameter is DN1500mm or larger, the arc-shaped plate width of the plug for repairing large-diameter pipes using this structure may reach 750mm or more, making it very difficult to insert into the manhole. The cover is designed as a single piece, which cannot be lowered to the bottom of the manhole through the manhole opening; disassembly and assembly at the bottom of the manhole are also very difficult. The curved plate only has a single curved strip for fixing the end cap, but it does not have a step to prevent the UV-curing lining hose from slipping off. No matter how large the diameter of the UV-curing lining hose is, the hose will slip off the end cap under air pressure. Therefore, this design is not suitable for actual construction. With only one air inlet and no back pressure pipe interface, when the hose is inflated, the air pressure inside the hose cannot be transmitted to the outside of the plug, making it impossible to control the air pressure inside the hose, which is not conducive to safe construction of UV curing repair. Therefore, a large-diameter UV-curable repair plug is needed to solve the above-mentioned technical problems. Utility Model Content

[0004] In response to the problems in related technologies, this utility model proposes a large plug for large-diameter ultraviolet curing repair, so as to overcome the above-mentioned technical problems existing in the existing related technologies.

[0005] Therefore, the specific technical solution adopted by this utility model is as follows: A large plug for large-diameter ultraviolet curing repair comprises three semi-cylindrical pieces, each with an arc-shaped strip welded to its upper arc end face, and a screw welded to the arc-shaped strip. The semi-cylindrical pieces are fastened to the fixing block with bolts, and the three pieces are spliced ​​together to form a cylinder. A sealing plate A and a sealing plate B are installed in the middle of the cylinder cover. This design allows construction personnel to disassemble the plug on the ground and lower the semi-cylindrical pieces one by one into the working well. The size and weight of each semi-cylindrical piece are not too large, allowing downhole workers to easily pick it up and put it down, and also facilitating reassembly underground. As a further embodiment of this utility model, a second step is welded to the lower arc end face of the semi-cylinder, and a first step is welded to the middle and outer arc surfaces. The cylinder composed of the semi-cylinders has a good anti-slip and anti-detachment effect. When the UV liner hose is fastened to the smooth surface of the cylinder in front of the first and second steps using two strips, even under the continuous action of air pressure, the first and second steps can prevent the hose from slipping off. At the same time, the first and second steps can also strengthen the bending strength of the semi-cylinder and prevent deformation. As a further embodiment of this utility model, the cylinder cover is a relatively wide semi-circular arc-shaped cover plate with evenly distributed reinforcing ribs to prevent deformation; two cylinder covers are welded to opposite end faces with locking edges and connected by sealing strips; the cylinder cover has evenly distributed through holes near its outer circle, which can be fastened to the cylinder formed by the semi-circular cylinders; a sealing rubber gasket connects the cylinder cover and the cylinder; the cylinder cover has evenly distributed threaded holes near its inner circle, which can be connected to the sealing plate A and sealing plate B; sealing plate A and sealing plate B are cover plates with a radius of less than 800mm, which can be spliced ​​into a complete circular cover plate, with sealing strips on the connecting surfaces and evenly distributed threaded holes on the edges; the circular cover plate is supported by two pressure rings and two pressure plates. The sealing plate is fastened to the sealing plate A and then connected and sealed with the cylindrical cover. Thus, the cylindrical cover, sealing plate A, and sealing plate B can be spliced ​​together to form a circular plug cover. Each component is small in size and weight, making it easy to place into the well through narrow manhole openings and spliced ​​by the construction personnel in the well. During the construction of the light chain installation, it is not necessary to remove the entire plug cover. Only sealing plate A and sealing plate B need to be removed to insert the light chain. Afterward, sealing plate A and sealing plate B can be reinstalled. This reduces the weight borne by the construction personnel when placing the light chain, and the overall structure of the plug will not deform when the sealing plate is removed, greatly facilitating the operation of the construction personnel. As a further embodiment of this utility model, the cover plate A is provided with a round pipe connecting the air inlet pipe and a small round pipe connecting the back pressure pipe, with a round through hole in the middle for use as a cable channel; when the hose is inflated through the air inlet pipe, the air pressure inside the hose is transmitted through the small round pipe to the air pressure pipe connected to the pressure sensor outside the plug, so that the operator can monitor the air pressure inside the hose in real time and ensure the safe construction of UV curing pipe repair.

[0006] The beneficial effects of this utility model are as follows: This utility model lowers the semi-cylinder piece by piece into the working well. The size and weight of each semi-cylinder piece are not too large, so the downhole workers can easily pick it up and put it down, and it is also convenient to reassemble it downhole. The first step and the second step can prevent the hose from slipping off. At the same time, the first step and the second step can also strengthen the bending strength of the semi-cylinder and prevent deformation. Each component is small in size and weight, making it easy to place into the well through narrow manhole openings and assemble by construction workers underground. During the installation of the light chain, it is not necessary to remove the entire plug cover plate; only cover plate A and cover plate B need to be removed to insert the light chain. Afterward, cover plate A and cover plate B can be reinstalled. This reduces the weight borne by the construction workers when placing the light chain, and the overall structure of the plug will not deform when the cover plate is removed, greatly facilitating the operation of the construction workers. Attached Figure Description

[0007] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0008] Figure 1 This is a schematic diagram of the structure of a large-diameter ultraviolet curing repair plug according to an embodiment of the present utility model; Figure 2 This is a side view of a large-diameter ultraviolet curing repair plug according to an embodiment of the present utility model; Figure 3 This is a top view of a large-diameter ultraviolet curing repair plug according to an embodiment of the present utility model; Figure 4 This is a bottom view of a large-diameter ultraviolet curing repair plug according to an embodiment of the present utility model.

[0009] In the picture: 1. Semi-cylinder; 2. Cylinder cover; 3. Cover plate A; 4. Cover plate B; 5. Round tube; 6. Step one; 7. Step two; 8. Reinforcing rib; 9. Locking edge one; 10. Locking edge two; 11. Small round tube; 12. Fixing block; 13. Arc strip; Detailed Implementation

[0010] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0011] According to an embodiment of this utility model, a large plug for large-diameter ultraviolet curing repair is provided.

[0012] Please refer to the instruction manual appendix. Figures 1-4According to an embodiment of this utility model, a large-diameter ultraviolet curing repair plug includes a semi-cylinder 1, which consists of three pieces. An arc-shaped strip 13 is welded to the upper arc end face, and a screw is welded to the arc-shaped strip 13. The semi-cylinder 1 is fastened to the fixing block 12 with bolts. The three pieces are spliced ​​together to form a cylinder. A sealing plate A3 and a sealing plate B4 are installed in the middle of the cylinder cover 2. This design allows construction personnel to disassemble the plug on the ground and lower the semi-cylinders one by one into the working well. The size and weight of each semi-cylinder are not too large, so the underground workers can easily pick it up and put it down, and it is also convenient to reassemble it underground. The lower arc end face of the semi-cylinder 1 is welded with step 2 7, and the middle and outer arc faces are welded with step 1 6. The cylinder composed of the semi-cylinder 1 has a good anti-slip and anti-detachment effect. When the UV liner hose is fastened to the smooth surface of the cylinder in front of step 1 6 and step 2 7 by two strips, even under the continuous action of air pressure, step 1 6 and step 2 7 can prevent the hose from slipping off. At the same time, step 1 6 and step 2 7 can also strengthen the bending strength of the semi-cylinder and prevent deformation. The cylinder cover 2 is a relatively wide semi-circular arc-shaped cover plate with evenly distributed reinforcing ribs 8 to prevent deformation; the two cylinder covers 2 are welded to opposite end faces with locking edges 9 and connected by sealing strips; the cylinder covers have evenly distributed through holes near the outer circle, which can be fastened to the cylinder formed by the semi-circular cylinders 1; a sealing rubber gasket connects the cylinder cover 2 and the cylinder; the cylinder cover 1 has evenly distributed threaded holes near the inner circle, which can be connected to the sealing cover plate A3 and sealing cover plate B4; the sealing cover plate A3 and sealing cover plate B4 are cover plates with a radius of less than 800mm, which can be spliced ​​into a complete circular cover plate, with sealing strips on the connecting surfaces and evenly distributed threaded holes on the edges; a locking edge 10 is provided above the connection between the sealing cover plate A3 and sealing cover plate B4; the circular cover plate is connected by two pressure rings and two... The pressure plate secures the sealing plate to the sealing plate A3, and then connects and seals it to the cylindrical cover 2. Thus, the cylindrical cover 2, the sealing plate A3, and the sealing plate B4 can be spliced ​​together to form a circular plug cover plate. Each component is small in size and weight, making it easy to place into the well through narrow manhole openings and spliced ​​by the construction personnel in the well. During the construction of the light chain installation, it is not necessary to remove the entire plug cover plate. Only the sealing plate A3 and the sealing plate B4 need to be removed to insert the light chain. After that, the sealing plate A3 and the sealing plate B4 can be reinstalled. This reduces the weight borne by the construction personnel when placing the light chain, and the overall structure of the plug will not deform when the sealing plate is removed, which greatly facilitates the operation of the construction personnel. The cover plate A3 is equipped with a round pipe 5 that connects to the air inlet pipe and a small round pipe 11 that connects to the back pressure pipe. There is a round through hole in the middle, which is used as a cable channel. When the hose is inflated through the air inlet pipe, the air pressure in the hose is transmitted through the small round pipe to the air pressure pipe connected to the pressure sensor outside the plug. The operator can monitor the air pressure in the hose in real time to ensure the safe construction of UV curing pipe repair.

[0013] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A large plug for large-diameter ultraviolet curing repair, comprising multiple semi-cylinders (1), characterized in that, An arc-shaped strip (13) is welded to the upper arc end face of the semi-cylinder (1), and a screw is welded to the arc-shaped strip (13). The semi-cylinder (1) and the fixing block (12) are fastened with bolts and spliced ​​into a cylinder. A step two (7) is welded to the lower arc end face of the semi-cylinder (1), and a step one (6) is welded to the middle and outer arc surface. A cylinder cover (2) is installed on the upper and lower end faces of the cylinder. A sealing plate A (3) and a sealing plate B (4) are installed in the middle of the cylinder cover (2).

2. The large plug for large-diameter ultraviolet curing repair according to claim 1, characterized in that: The number of the semi-cylinder (1) and the fixing block is three, and the number of the cylinder cover (2) is two.

3. A large plug for large-diameter ultraviolet curing repair according to claim 2, characterized in that: The cylinder cover (2) is a relatively wide semi-circular arc-shaped cover plate with reinforcing ribs (8) evenly distributed on it.

4. A large plug for large-diameter ultraviolet curing repair according to claim 3, characterized in that: The cylinder cover (2) has a locking edge (9) welded to the opposite end face and is connected with a sealing strip; the cylinder cover (2) has through holes evenly distributed near the outer circle, which can be fastened to the cylinder formed by the semi-cylinder (1); a sealing rubber gasket is connected between the cylinder cover (2) and the cylinder.

5. A large plug for large-diameter ultraviolet curing repair according to claim 4, characterized in that: The cylinder cover (2) has threaded holes evenly distributed near the inner circle, which are connected to the cover plate A (3) and cover plate B (4); the cover plate A (3) and cover plate B (4) are cover plates with a radius of less than 800mm, which can be spliced ​​into a complete circular cover plate, with a sealing strip on the connecting surface and threaded holes evenly distributed on the edge.

6. A large plug for large-diameter ultraviolet curing repair according to claim 5, characterized in that: The sealing plate is fastened to the sealing plate A(3) by two pressure rings and two pressure plates below the round cover plate, and then connected and sealed with the cylinder cover.

7. A large plug for large-diameter ultraviolet curing repair according to claim 5, characterized in that: The cover plate A (3) is provided with a round pipe (5) for connecting the air inlet pipe and a small round pipe (11) for connecting the back pressure pipe, with a round through hole in the middle for use as a cable channel.

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