Leaking stoppage structure for rubber-lined pipeline
By improving the structure and operation process of the plugging components, and utilizing components such as cement tanks, threaded rods, sliding rods, and one-way valves, the problem of cement flow at the leaks in rubber-lined pipes has been solved, achieving a more efficient and stable sealing effect.
Patent Information
- Application Number
- CN202520448272.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-14
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2035-03-14
AI Technical Summary
In existing technologies, cement tends to flow when applied to leaks in rubber-lined pipes, resulting in poor sealing performance.
The system employs a plugging component structure, including a cement tank, threaded rod, sliding rod, locking block, and one-way valve. This ensures that cement accurately enters the leak hole, and the threaded rod rotates to move the plugging component. The sliding rod is limited and locked, the locking block is fixed, and the one-way valve expels air, ensuring that the cement solidifies in the cement tank.
It improves the sealing accuracy and stability of cement at the leak point, prevents cement from flowing, enhances the sealing effect, and ensures a more secure seal.
Smart Images

Figure CN223709021U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rubber-lined pipe repair technology, specifically a leak-sealing structure for rubber-lined pipes. Background Technology
[0002] Rubber-lined pipes are mainly used in pipeline systems for special environments such as corrosion resistance, wear resistance, and high temperature resistance. The rubber lining can effectively prevent the pipe from being corroded by chemical media, acids, and alkalis, extending the service life of the pipe. In addition, the rubber lining material has good wear resistance, making it particularly suitable for pipelines that transport solid particles or materials containing corrosive gases. When a leak occurs in a rubber-lined pipe, workers need to apply cement to the leak and wait for the cement to harden before wrapping fiberglass cloth around the leak.
[0003] The above-mentioned utility model has the following problems:
[0004] In existing technology, rubber-lined pipes are cylindrical. When workers apply cement to the leaks in the rubber-lined pipes, the cement flows on the outside of the pipes, making it difficult to effectively seal the leaks and thus reducing the sealing effect.
[0005] Therefore, those skilled in the art have provided a rubber-lined pipe sealing structure to solve the problems mentioned in the background art. Utility Model Content
[0006] The purpose of this invention is to provide a rubber-lined pipe sealing structure to solve the problems mentioned in the background art.
[0007] To achieve the above objectives, this utility model provides the following technical solution:
[0008] A leak-sealing structure for rubber-lined pipes includes a first clamping block, a cement injector, and a second clamping block. A threaded rod is threadedly connected to one side of the first clamping block, and a rotating bearing is rotatably connected to one end of the threaded rod. The other end of the rotating bearing is fixedly connected to a leak-sealing component. A cement groove is formed on one inner wall of the leak-sealing component.
[0009] As a further embodiment of this utility model: a sliding rod is fixedly connected to one side of the plugging component near the threaded rod, and the sliding rod is slidably connected to the first locking block. Both sides of the first and second locking blocks are threadedly connected with fixing bolts.
[0010] As a further embodiment of this utility model: a first connecting tube is fixedly connected through one end of the inner cavity of the cement syringe, and a second connecting tube is fixedly connected through one side of the inner cavity of the cement syringe.
[0011] As a further improvement of this utility model: the other end of the second connecting pipe is fixedly connected to the inner cavity of the cement storage bucket.
[0012] As a further improvement of this utility model, a one-way valve is fixedly connected to the outer side of the first connecting pipe and the second connecting pipe near the cement injector.
[0013] As a further embodiment of this utility model: a connecting pipe groove is provided on the side of the first card block near the threaded rod, the other end of the first connecting pipe is slidably connected to the connecting pipe groove, and the other end of the first connecting pipe is fixedly connected to the inner cement trough through the plugging piece, and a heating wire is fixedly connected to the inner wall of the threaded rod near the cement trough.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] This invention, through the use of a cement trough and other structures in the sealing component, ensures that cement accurately enters the leak for sealing, avoiding the problem of cement flowing outside the pipe in traditional methods. This ensures that the cement effectively seals the leak, providing a better sealing effect. The sealing component can be moved by the rotation of the threaded rod, while the sliding rod restricts the movement of the sealing component, ensuring a tight fit at the leak. Simultaneously, the locking block is fixed to both sides of the pipe with fixing bolts, enhancing the stability of the structure and preventing loosening or displacement during the sealing process. The cement injector, in conjunction with a one-way valve, ensures that cement smoothly enters the cement trough within the sealing component and effectively removes air, preventing cement flow during injection and ensuring a more secure sealing effect. In summary, this invention, by improving the sealing structure and operation process, effectively solves the cement flow problem in existing technologies and improves the accuracy and efficiency of sealing, exhibiting stronger applicability and stability. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of a rubber-lined pipe leak-sealing structure.
[0017] Figure 2 This is a schematic diagram of the leak-sealing component in a rubber-lined pipe leak-sealing structure.
[0018] Figure 3 This is a cross-sectional schematic diagram of the leak-sealing component in a rubber-lined pipe leak-sealing structure.
[0019] In the diagram: 1. First locking block, 2. Threaded rod, 3. Rotary bearing, 4. Leak-stopping component, 5. Cement tank, 6. First connecting pipe, 7. Connecting pipe groove, 8. Second locking block, 9. Cement injector, 10. Second connecting pipe, 11. Cement storage bucket, 12. One-way valve, 13. Heating wire, 14. Slide rod, 15. Fixing bolt. Detailed Implementation
[0020] 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.
[0021] Example 1
[0022] Reference Figure 1 , 2 This embodiment provides a leak-sealing structure for rubber-lined pipes, including a first clamping block 1, a cement injector 9, and a second clamping block 8. A threaded rod 2 is threadedly connected to one side of the first clamping block 1. One end of the threaded rod 2 is rotatably connected to a rotating bearing 3, and the other end of the rotating bearing 3 is fixedly connected to a leak-sealing component 4. A cement groove 5 is formed on the inner wall of one side of the leak-sealing component 4. A sliding rod 14 is fixedly connected to one side of the leak-sealing component 4 near the threaded rod 2, and the sliding rod 14 is slidably connected to the first clamping block 1. Both sides of the first clamping block 1 and the second clamping block 2 are threadedly connected to fixed... 15 fixing bolts; When it is necessary to plug the leak in the rubber-lined pipe, fix the first and second locking blocks at the leak hole, then adjust the plugging part to align with the leak hole, and use fixing bolts to thread the first and second locking blocks on both sides so that the first and second locking blocks are locked on both sides of the rubber-lined pipe. Then rotate the threaded rod, which drives the plugging part to move. The sliding rod limits the movement of the plugging part, so that the plugging part is locked at the leak hole in the rubber-lined pipe. When the plugging part moves, it drives the first connecting pipe to move and adjust in the connecting pipe groove.
[0023] Example 2
[0024] Reference Figure 1 , 3This embodiment is based on the previous embodiment, but differs in that a first connecting pipe 6 is fixedly connected to one end of the inner cavity of the cement injector 9, a second connecting pipe 10 is fixedly connected to one side of the inner cavity of the cement injector 9, and the other end of the second connecting pipe 10 is fixedly connected to the inner cavity of the cement storage tank 11. One-way valves 12 are fixedly connected to the outer sides of both the first connecting pipe 6 and the second connecting pipe 10 near the end of the cement injector 9. A connecting pipe groove 7 is provided on the side of the first locking block 1 near the threaded rod 2. The other end of the first connecting pipe 6 is slidably connected to the connecting pipe groove 7, and the other end of the first connecting pipe 6 is fixedly connected to the leak-stopping component 4 and connected to the inner cement tank 5. A heating wire 13 is fixedly connected to the inner wall of the threaded rod 2 near the cement tank 5. When the leak-stopping component is stuck at the leak hole of the rubber-lined pipe... After clamping, the cement for sealing is poured into the cement storage bucket. A small vent hole is opened on the surface of the sealing component. The worker pulls the cement injector, which draws the cement from the cement storage bucket into the cement injector through the second connecting pipe and the one-way valve on the outside. Then, the worker pushes the piston of the cement injector, so that the cement in the cement injector enters the cement tank in the sealing component through the first connecting pipe and the one-way valve. Excess air in the cement injector is released through the vent hole on one side of the sealing component. The cement does not flow in the cement tank. At the same time, the heating wire heats the cement in the cement tank. After the cement solidifies and seals, the fixing bolt is rotated to loosen and remove the first clamp and the second connecting pipe. Fiberglass cloth is wrapped around the outside of the cement seal of the rubber-lined pipe.
[0025] It should be noted that the cement injector and connecting pipe are existing technologies. The second clamp can be used or not depending on the size of the pipe. When the second clamp is not used, the worker can directly press the plugging piece onto the leak in the pipe by hand.
[0026] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0027] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A leak-sealing structure for rubber-lined pipes, comprising a first clamping block (1), a cement injector (9), and a second clamping block (8), characterized in that, A threaded rod (2) is threaded through one side of the first card block (1). A rotating bearing (3) is rotatably connected to one end of the threaded rod (2). The other end of the rotating bearing (3) is fixedly connected to the plugging component (4). A cement groove (5) is opened on one side of the inner wall of the plugging component (4). A first connecting pipe (6) is fixedly connected through one end of the inner cavity of the cement syringe (9). A second connecting pipe (10) is fixedly connected through one side of the inner cavity of the cement syringe (9). The other end of the second connecting pipe (10) is fixedly connected through the inner cavity of the cement storage bucket (11).
2. The rubber-lined pipe sealing structure according to claim 1, characterized in that, One-way valves (12) are fixedly connected to the outer side of the first connecting pipe (6) and the second connecting pipe (10) near the cement injector (9).
3. The rubber-lined pipe sealing structure according to claim 1, characterized in that, The first card block (1) has a connecting pipe groove (7) on the side near the threaded rod (2). The other end of the first connecting pipe (6) is slidably connected to the connecting pipe groove (7), and the other end of the first connecting pipe (6) is fixedly connected to the inner cement trough (5) through the plugging part (4).
4. The rubber-lined pipe sealing structure according to claim 1, characterized in that, A heating wire (13) is fixedly connected to the inner wall of the threaded rod (2) near the cement tank (5).
5. The rubber-lined pipe sealing structure according to claim 1, characterized in that, The plugging component (4) has a slide rod (14) fixedly connected to one side of the threaded rod (2), and the slide rod (14) is slidably connected to the first locking block (1).
6. The rubber-lined pipe sealing structure according to claim 1, characterized in that, Both sides of the first card block (1) and the second card block (8) are threadedly connected with fixing bolts (15).