Long-service-life lining pipe for pipeline repair
By using a combination of right-angle clamps, stops, suction cups, water-absorbing resin and elastic rings in the pipeline repair technology, the problems of size mismatch and insufficient connection in the prior art are solved, and the tight fit of the pipeline and long-life repair are achieved.
Patent Information
- Application Number
- CN202422418730.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-08
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-10-08
AI Technical Summary
The existing pipeline repair technology is difficult to achieve a tight fit for pipes of different sizes, and the overall connection of repair parts is insufficient, resulting in unsatisfactory repair results.
A lined tube including right-angle clamp, stopper, suction cup, water-absorbing resin and elastic ring is adopted. Through the engagement mechanism between the right-angle clamp and the stopper, the suction cup moves outward and adsorbs on the inner wall of the pipe, and the water-absorbing resin is expanded by injecting water to achieve fit with the pipe.
It achieves a tight fit for pipes of different sizes, enhances the overall connection force of repaired parts, and extends the service life of the pipe.
Smart Images

Figure CN223019770U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pipeline repair, and particularly relates to a lining pipe for pipeline repair with a long service life. Background Art
[0002] When a pipeline is used for a long time, damage phenomena such as aging, corrosion, cracks and collapses will occur, and it needs to be repaired in time. Therefore, a component that can repair the pipeline is required to enable the pipeline to be used normally. For example, the Chinese patent discloses a non-excavation pipeline repair collapsible reinforced lining pipe, with the application number: CN201610266717.X. It consists of an inner layer, a reinforcing fiber layer and an outer layer. The inner layer is made of polyurethane or flexible PE. Its construction time is short and the service life after repair is long. However, for severely damaged parts of the pipeline, the position needs to be adjusted for tight connection, and it cannot achieve tight fitting for pipelines of different sizes, and the overall connection of the repaired parts is insufficient. Content of the Utility Model
[0003] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art, and provide a lining pipe for pipeline repair with a long service life. By engaging a right-angle block with a stop block, when the right-angle block is pulled, it will move to the side and disengage from the stop block, causing the spring to reset and drive the suction cup to move outward, thereby adsorbing and fixing the inner wall of the repaired pipeline. Water is injected into the accommodation cavity through a water injection port, causing the absorbent resin to expand and fit with the pipeline.
[0004] The utility model also provides a lining pipe for pipeline repair with a long service life as described above, including: a main pipe, with a first fixed end and a second fixed end respectively fixed at both ends of the main pipe. A first rack is fixedly connected inside the first fixed end. A second rack is meshed outside the first rack. A rubber gasket is fixedly connected to one side of the second rack. A spring is fixedly connected to the outside of the first fixed end. The end of the spring away from the first fixed end is fixedly connected to a right-angle block. The outside of the right-angle block is engaged with a stop block. The stop block is fixedly connected to the first fixed end. A suction cup is fixedly connected to the upper surface of the right-angle block. An absorbent resin is arranged outside the main pipe. A covering layer is fixedly connected to the side of the absorbent resin away from the main pipe. A cleaning component is arranged outside the covering layer. Through the above components, by engaging the right-angle block with the stop block, when the right-angle block is pulled, it will move to the side and disengage from the stop block, causing the spring to reset and drive the suction cup to move outward, thereby adsorbing and fixing the inner wall of the repaired pipeline. Water is injected into the accommodation cavity through a water injection port, causing the absorbent resin to expand and fit with the pipeline.
[0005] A lining pipe for pipeline repair with long service life according to the present utility model. There are six right-angle blocks and six suction cups each, and they are symmetrically arranged with the midline of the main pipe as the axis. Through the above components, the inner wall of the pipeline to be repaired is adsorbed.
[0006] A lining pipe for pipeline repair with long service life according to the present utility model. The side surface of the covering layer is fixedly connected to the first fixing end. An accommodation cavity is formed between the main pipe, the first fixing end and the covering layer, and the water-absorbing resin is located inside the accommodation cavity. Through the above components, the water-absorbing resin is fixed, facilitating the expansion of the water-absorbing resin.
[0007] A lining pipe for pipeline repair with long service life according to the present utility model. Elastic rings are arranged inside the accommodation cavity. There are two groups of elastic rings, with five in each group. The two groups of elastic rings are located on both sides of the water-absorbing resin. Through the above components, the positions on both sides of the water-absorbing resin are restricted. When the water-absorbing resin expands, the elastic rings are squeezed. The elastic rings have elasticity and can react on the water-absorbing resin to fix it.
[0008] A lining pipe for pipeline repair with long service life according to the present utility model. A water injection nozzle is arranged inside the first fixing end. The water injection nozzle penetrates through the inside of the first fixing end and extends into the inside of the main pipe. Through the above components, water can enter the inside of the accommodation cavity through the water injection nozzle.
[0009] A lining pipe for pipeline repair with long service life according to the present utility model. The cleaning assembly includes a mating ring. A chassis is fixedly connected to the surface of the mating ring. A connecting rod is fixedly connected to the upper surface of the chassis. One end of the connecting rod away from the chassis is fixedly connected to a receiving plate, and a brush head is fixedly connected to the upper surface of the receiving plate. Through the above components, the inside of the repaired pipeline is cleaned, facilitating subsequent adsorption and fixation.
[0010] A lining pipe for pipeline repair with long service life according to the present utility model. A magnetic column is adsorbed and connected to the side surface of the right-angle block. A threaded body is fixedly connected to the side of the magnetic column away from the right-angle block. A limiting ring is externally threaded on the threaded body. Through the above components, the movement of the right-angle block is restricted.
[0011] A lining pipe for pipeline repair with long service life according to the present utility model. An inner cushion layer is fixedly connected inside the main pipe, and a pressing layer is fixedly connected inside the inner cushion layer. Through the above components, the inside of the pipeline is protected, reducing the erosion of water flow.
[0012] The additional aspects and advantages of the present utility model will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] The utility model is further described below in conjunction with the accompanying drawings and embodiments;
[0014] Figure 1 This is a complete structural diagram of the long-life inner liner pipe for pipeline repair of the utility model;
[0015] Figure 2 This is the internal structure diagram of the long-life liner pipe for pipeline repair of the utility model;
[0016] Figure 3 It is a partial structural diagram of the A position of the long-life inner liner pipe for pipeline repair of the utility model;
[0017] Figure 4 This is a structural diagram of a cleaning assembly for a long-life inner liner pipe for pipeline repair according to the utility model.
[0018] Legend:
[0019] 1. Main tube; 2. First fixed end; 3. Second fixed end; 4. Rack 1; 5. Rack 2; 6. Right-angle block; 7. Stopper; 9. Suction cup; 10. Matching ring; 11. Chassis; 12. Connecting rod; 13. Receiver plate; 14. Brush head; 15. Water-absorbing resin; 16. Elastic ring; 17. Water injection nozzle; 18. Inner cushion layer; 19. Crimp layer; 20. Limiting ring; 21. Rubber gasket; 22. Spring; 23. Cover layer; 24. Accommodating cavity; 25. Magnetic column; 26. Threaded body. DETAILED DESCRIPTION
[0020] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.
[0021] Reference Figures 1-4, in an embodiment of the utility model, a long - life inner lining pipe for pipeline repair includes: a main pipe 1, an inner cushion layer 18 is fixedly connected inside the main pipe 1 to protect the inside of the pipeline from being eroded. A crimping layer 19 is fixedly connected inside the inner cushion layer 18 to fix the inner cushion layer 18. First and second fixed ends 2 and 3 are respectively fixedly connected to both ends of the main pipe 1. A first rack 4 is fixedly connected inside the first fixed end 2 to fix the second rack 5. The first rack 4 is externally engaged with the second rack 5. A rubber gasket 21 is fixedly connected to one side of the second rack 5 to slow down the hydraulic impact. A spring 22 is fixedly connected to the outside of the first fixed end 2. The spring 22 enables the suction cup 9 to move. One end of the spring 22 away from the first fixed end 2 is fixedly connected to a right - angled clamping block 6 to squeeze and fix the spring 22. The outside of the right - angled clamping block 6 is engaged with a stop block 7 to fix the right - angled clamping block 6. The stop block 7 is fixedly connected to the first fixed end 2. A suction cup 9 is fixedly connected to the upper surface of the right - angled clamping block 6 to adsorb the inside of the pipeline. A water - absorbing resin 15 is arranged outside the main pipe 1. A covering layer 23 is fixedly connected to the side of the water - absorbing resin 15 away from the main pipe 1. A cleaning component is arranged outside the covering layer 23.
[0022] There are six right - angled clamping blocks 6 and six suction cups 9 each, and they are symmetrically arranged with respect to the central line of the main pipe 1. A magnetic column 25 is adsorbed and connected to the side surface of the right - angled clamping block 6. Due to the limited magnetism of the magnetic column 25, the magnetic column 25 drives the right - angled clamping block 6 to move a certain distance. A threaded body 26 is fixedly connected to the side of the magnetic column 25 away from the right - angled clamping block 6. The threaded body 26 is externally threaded with a limit ring 20 to limit the right - angled clamping block 6.
[0023] The side surface of the covering layer 23 is fixedly connected to the first fixed end 2. A water injection port 17 is arranged inside the first fixed end 2 to input water into the inside of the accommodation cavity 24. The water injection port 17 penetrates through the inside of the first fixed end 2 and extends into the inside of the main pipe 1. An accommodation cavity 24 is formed among the main pipe 1, the first fixed end 2 and the covering layer 23. The water - absorbing resin 15 is located inside the accommodation cavity 24. An elastic ring 16 is arranged inside the accommodation cavity 24 to laterally fix the water - absorbing resin 15. There are two groups of elastic rings 16, with five in each group, and the two groups of elastic rings 16 are located on both sides of the water - absorbing resin 15.
[0024] The cleaning component includes a mating ring 10. A chassis 11 is fixedly connected to the surface of the mating ring 10. A connecting rod 12 is fixedly connected to the upper surface of the chassis 11. The connecting rod 12 is a connecting component. One end of the connecting rod 12 away from the chassis 11 is fixedly connected to a receiving plate 13 to fix the position of the cleaning brush head 14. A cleaning brush head 14 is fixedly connected to the upper surface of the receiving plate 13 to clean the inner wall of the pipe.
[0025] Working principle: First, place the threaded body 26 inside the main body pipe 1, and fix the position of the threaded body 26 through the limiting ring 20, so that the threaded body 26 is fixed to the main body component. At this time, the magnetic column 25 is adsorbed on the right-angle block 6. Hold the threaded body 26 and insert it into the pipeline part to be repaired. Rotate the threaded body 26 to drive the covering layer 23, so that the chassis 11 rotates. The chassis 11 drives the receiving tray 13 to make the brush head 14 clean the inside of the pipeline. Reverse-rotate the limiting ring 20, and pull out the threaded body 26 outward. When the magnetic column 25 drives the right-angle block 6 to move a certain distance and then releases, at this time, the right-angle block 6 disengages from the stopper 7, and the spring 22 resets under the elastic action. The spring 22 drives the suction cup 9 to move outward, so that the suction cup 9 adsorbs on the inner wall of the repaired pipeline. Fill the accommodating cavity 24 with water through the water injection nozzle 17. The water-absorbing resin 15 absorbs water and expands to make full contact with the repaired pipeline, so as to be fixed.
[0026] The embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art, various changes can be made without departing from the purpose of the present invention.
Claims
1. A long-life liner pipe for pipeline repair, characterized in that: include: A main body tube (1), wherein two ends of the main body tube (1) are respectively fixedly connected to a first fixed end head (2) and a second fixed end head (3); a rack 1 (4) is fixedly connected inside the first fixed end head (2); a rack 2 (5) is meshedly connected outside the rack 1 (4); a rubber gasket (21) is fixedly connected to one side of the rack 2 (5); a spring (22) is fixedly connected to the outside of the first fixed end head (2); an end of the spring (22) away from the first fixed end head (2) is fixedly connected to a right-angle clamping block (6); a stopper (7) is meshedly connected outside the right-angle clamping block (6); the stopper (7) is fixedly connected to the first fixed end head (2); a suction cup (9) is fixedly connected to the upper surface of the right-angle clamping block (6); a water-absorbing resin (15) is arranged outside the main body tube (1); a cover layer (23) is fixedly connected to the side of the water-absorbing resin (15) away from the main body tube (1); a cleaning component is arranged outside the cover layer (23).
2. The long-life liner pipe for pipeline repair according to claim 1, characterized in that: There are six right-angle clamping blocks (6) and six suction cups (9) each, and they are arranged symmetrically with the center line of the main tube (1) as the axis.
3. The long-life liner pipe for pipeline repair according to claim 1, characterized in that: The side surface of the capping layer (23) is fixedly connected to the first fixed end (2); a receiving cavity (24) is formed between the main body tube (1), the first fixed end (2) and the capping layer (23); and the water-absorbing resin (15) is located inside the receiving cavity (24).
4. The long-life liner pipe for pipeline repair according to claim 3, characterized in that: An elastic ring (16) is arranged inside the accommodating cavity (24), wherein the elastic ring (16) has two groups, with five elastic rings in each group, and the two groups of elastic rings (16) are located on both sides of the water-absorbing resin (15).
5. The long-life liner pipe for pipeline repair according to claim 1, characterized in that: A water injection nozzle (17) is provided inside the first fixed end head (2), and the water injection nozzle (17) penetrates the interior of the first fixed end head (2) and extends to the interior of the main body pipe (1).
6. The long-life liner pipe for pipeline repair according to claim 1, characterized in that: The cleaning assembly comprises a matching ring (10), the surface of the matching ring (10) is fixedly connected to a base plate (11), the upper surface of the base plate (11) is fixedly connected to a connecting rod (12), one end of the connecting rod (12) away from the base plate (11) is fixedly connected to a receiving plate (13), and the upper surface of the receiving plate (13) is fixedly connected to a brush head (14).
7. The long-life liner pipe for pipeline repair according to claim 1, characterized in that: A magnetic column (25) is adsorbed and connected to the side surface of the right-angle clamping block (6), a threaded body (26) is fixedly connected to the side of the magnetic column (25) away from the right-angle clamping block (6), and the outer thread of the threaded body (26) is connected to the limit ring (20).
8. The long-life liner pipe for pipeline repair according to claim 1, characterized in that: An inner cushion layer (18) is fixedly connected to the interior of the main body tube (1), and a crimping layer (19) is fixedly connected to the interior of the inner cushion layer (18).
Citation Information
Patent Citations
Crushable reinforced lining pipe for non-excavation pipe repair
CN107314189A