Pipe joint sealing sleeve with leakage early warning function
By designing a pipe joint sealing sleeve with a leakage warning function, the problem of traditional sealing sleeves being unable to warn of leaks was solved by using a warning rod assembly and a limiting baffle, thus achieving rapid leakage judgment and improved sealing performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SONGJIANG ELECTROMECHANICAL GRP CO LTD
- Filing Date
- 2025-08-24
- Publication Date
- 2026-06-09
Smart Images

Figure CN224339930U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipe joint sealing technology, and in particular to a pipe joint sealing sleeve with leakage early warning function. Background Technology
[0002] Pipe joint sealing sleeves are key sealing elements installed at pipe connections (such as flanges, threads, ferrules, etc.). Their core function is to prevent fluid (liquid or gas) from leaking from the joint gap. Traditional sealing sleeves are usually annular or cylindrical elastomers (rubber, polytetrafluoroethylene, metal spiral wound gaskets, etc.), which fill the joint gap by compression deformation.
[0003] A search revealed Chinese patent application number 202222612927.3, which discloses a double-sided quick-sealing sleeve, specifically relating to the field of sealing sleeves. The sleeve includes a connecting pipe with sealing components spirally installed on both sides of its interior. Connecting sleeves are spirally fitted onto both ends of the outer side of the connecting pipe. The connecting pipe, two sealing components, and two connecting sleeves form a quick-sealing sleeve. This invention has the advantages of directly connecting and sealing two pipes, automatically compensating for the seal after connection, providing good sealing performance, requiring no additional tools for installation, high assembly efficiency, and strong practicality.
[0004] While the aforementioned patents do not require additional tools for installation and offer high assembly efficiency and practicality, traditional sealing sleeves cannot provide early warning of pipeline leaks in scenarios such as municipal water supply and chemical pipelines, leading to delays in maintenance.
[0005] Therefore, there is an urgent need for pipe joint sealing sleeves with leakage warning functions to solve the above problems. Utility Model Content
[0006] The purpose of this invention is to solve the problem that traditional sealing sleeves in the prior art cannot provide early warning of pipeline leaks, thus causing delays in maintenance. This invention proposes a pipe joint sealing sleeve with a leak warning function.
[0007] To achieve the above objectives, the present invention adopts the following technical solution:
[0008] A pipe joint sealing sleeve with leakage warning function includes a sleeve with a groove in the middle and multiple flow guides in the groove. A leakage warning mechanism is fitted on the groove. The leakage warning mechanism includes a detection sleeve installed on the groove. The detection sleeve has multiple movable grooves inside. A positioning sleeve is installed at the outer end of the movable groove. A warning rod assembly is slidably installed in the movable groove. A warning cover is threadedly connected to the outer side of the detection sleeve at the movable groove. The warning cover has multiple transparent observation windows. Elastic sleeves are installed at both ends of the sleeve.
[0009] As a preferred technical solution of this application, the warning rod assembly includes a sliding movable seat in the movable groove, the outer side of the movable seat is provided with a plurality of sealing rings, and the outer end of the movable seat is connected to a warning post through a connecting rod.
[0010] As a preferred technical solution of this application, a fluorescent strip is fixedly installed on the outer end of the warning column.
[0011] As a preferred technical solution of this application, the inner side of the warning cover is connected to a pressure plate by a spring.
[0012] As a preferred technical solution of this application, a gathering groove is installed on the middle of the outer side of the elastic sleeve, and a first sealing ring is installed on the inner side of the elastic sleeve at a position opposite to the gathering groove. The gathering groove is provided with gathering wires for binding.
[0013] As a preferred technical solution of this application, both ends of the inner side of the sleeve are fixedly installed with limiting partitions, and a second sealing ring is snapped into the inside of the limiting partition.
[0014] As a preferred technical solution of this application, the detection sleeve is provided with side panels on both sides.
[0015] Compared with the prior art, this utility model provides a pipe joint sealing sleeve with leakage early warning function, which has the following beneficial effects:
[0016] 1. This pipe joint sealing sleeve with leakage early warning function, through the set detection sleeve and the leakage early warning mechanism on the detection sleeve, will give an early warning through the warning rod assembly when a leak occurs. The staff can quickly judge the leakage at the pipe joint by observing the position of the warning rod assembly, which solves the problem that the traditional sealing sleeve in the existing technology cannot give early warning of pipeline leakage, thus causing maintenance delays.
[0017] 2. The pipe joint sealing sleeve with leakage warning function, through the limiting baffles set at both ends of the inner side of the sleeve, can be used to place the second sealing ring during use. By using the limiting baffles to restrict the position of the second sealing ring, the stability of the second sealing ring during use is maintained. At the same time, the second sealing ring can be replaced, so that the selected second sealing ring is more suitable for the pipeline and improves the sealing performance during use. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2 This is a schematic diagram of the installation structure of the leakage early warning mechanism of this utility model;
[0020] Figure 3 This is a schematic diagram of the internal structure of the sleeve of this utility model;
[0021] Figure 4 This is a schematic diagram of the internal structure of the detection sleeve of this utility model;
[0022] Figure 5 This utility model Figure 4 A schematic diagram of the structure of part A.
[0023] In the picture:
[0024] 1. Sleeve; 2. Detection sleeve; 3. Warning cover; 4. Side; 5. Gathering wire; 6. Gathering groove; 7. Elastic sleeve; 8. Slot; 9. Flow guide; 10. First sealing ring; 11. Second sealing ring; 12. Limiting partition; 13. Transparent observation window; 14. Spring; 15. Pressure plate; 16. Warning post; 17. Connecting rod; 18. Movable seat; 19. Movable groove; 20. Fluorescent strip; 21. Positioning sleeve. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0026] Example:
[0027] Reference Figures 1-5 A pipe joint sealing sleeve with leakage warning function includes a sleeve 1, with elastic sleeves 7 installed at both ends of the sleeve 1, a groove 8 in the middle of the sleeve 1, multiple flow guide ports 9 on the groove 8, and a leakage warning mechanism on the groove 8. The leakage warning mechanism protects the interface of the pipe connection, reducing leakage of the transported items and providing early warning. Compared with traditional pipe joints, where minor leaks are covered by the outer structure and corrosion or accidents occur before they are detected.
[0028] The leakage warning mechanism includes a detection sleeve 2 installed on the slot 8. After installation, the detection sleeve 2 can be connected with glue. The appropriate glue can be selected according to the liquid being transported. Both sides of the detection sleeve 2 are equipped with side edges 4, which seal the gap at the connection between the detection sleeve 2 and the slot 8, effectively reducing liquid leakage and making it safer to use. The inside of the detection sleeve 2 has multiple movable slots 19, in which warning rod assemblies are slidably installed. The outer side of the detection sleeve 2 is connected to the movable slot 19 with a warning cover 3 threadedly. The warning cover 3 has multiple transparent observation windows 13, which allow for easy observation of the position of the warning rod assembly. If the warning rod is pushed out by the leaking liquid, it can be determined that there is a leak at the pipe joint. Since the warning rod assembly needs to be pushed by liquid pressure, the closer the inner side of the sleeve 1 is to the pipe joint, the better the detection accuracy.
[0029] The warning rod assembly includes a sliding movable seat 18 in the movable groove 19. The outer side of the movable seat 18 is provided with multiple sealing rings to prevent liquid leakage from affecting the movement of the movable seat 18 when the liquid pushes the movable seat 18. The outer end of the movable seat 18 is connected to a warning post 16 through a connecting rod 17. A fluorescent strip 20 is fixedly installed on the outer end of the warning post 16. A positioning sleeve 21 is installed on the outer end of the movable groove 19. When the positioning sleeve 21 is combined with the guide port 9, it is more tight and stable.
[0030] The inner side of the warning cover 3 is connected to the pressure plate 15 by the spring 14. After the warning cover 3 is installed, the spring 14 and the pressure plate 15 squeeze the warning component to prevent the warning rod component from giving an early warning when no leakage occurs, making it more accurate and convenient to use.
[0031] A gathering groove 6 is installed in the middle of the outer side of the elastic sleeve 7. A first sealing ring 10 is installed in the inner side of the elastic sleeve 7 at the position opposite to the gathering groove 6. The gathering groove 6 is provided with a binding wire 5 for binding. The binding wire 5 is iron wire or steel wire, etc. The elastic sleeve 7 is fixed by binding, which improves the stability during use and also improves the sealing performance.
[0032] Both ends of the inner side of the sleeve 1 are fixedly installed with limiting baffles 12. The second sealing ring 11 is snapped into the inside of the limiting baffle 12. With the setting of the limiting baffle 12, the second sealing ring 11 can be snapped into the limiting baffle 12 when the pipe joint needs to be replaced. The operation is simple and convenient. The sealing performance is improved by replacing the appropriate second sealing ring 11.
[0033] Specifically, when using this pipe joint sealing sleeve with leakage warning function: the sleeve 1 is fitted onto the pipe joint, and then the coiling wire 5 is inserted into the coiling groove 6. After binding, the elastic sleeve 7 is clamped and fixed, which on the one hand maintains the stability of the entire sealing sleeve, and on the other hand improves the tightness of the connection between the elastic sleeve 7 and the pipe. After binding with the coiling wire 5, the first sealing ring 10 is squeezed to improve the sealing line. When a leak occurs at the pipe joint, the leaked liquid fills the movable groove 19 through the guide port 9, and then drives the movable seat 18 to slide in the movable groove 19. The sliding movable seat 18 drives the warning column 16 to move outward synchronously. At this time, the position of the warning column 16 can be observed through the transparent observation window 13 on the warning cover 3. The fluorescent strip 20 can improve the convenience of observation and make the warning signal easier to see.
[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A pipe joint sealing sleeve with leakage early warning function, comprising a sleeve (1), characterized in that, The sleeve (1) has a slot (8) in the middle, and multiple guide ports (9) are provided on the slot (8). A leakage warning mechanism is provided on the slot (8). The leakage warning mechanism includes a detection sleeve (2) installed on the slot (8). Multiple movable slots (19) are provided inside the detection sleeve (2). A positioning sleeve (21) is installed on the outer end of the movable slot (19). A warning rod assembly is slidably installed in the movable slot (19). A warning cover (3) is threadedly connected to the outer side of the detection sleeve (2) at the location of the movable slot (19). Multiple transparent observation windows (13) are provided on the warning cover (3). Elastic sleeves (7) are installed at both ends of the sleeve (1).
2. A pipe joint sealing sleeve with leakage early warning function according to claim 1, characterized in that, The warning bar assembly includes a sliding seat (18) in the movable groove (19), the outer side of the movable seat (18) is provided with a plurality of sealing rings, and the outer end of the movable seat (18) is connected to a warning post (16) via a connecting rod (17).
3. A pipe joint sealing sleeve with leakage early warning function according to claim 2, characterized in that, A fluorescent strip (20) is fixedly installed at the outer end of the warning post (16).
4. A pipe joint sealing sleeve with leakage early warning function according to claim 1, characterized in that, The inner side of the warning cover (3) is connected to a pressure plate (15) via a spring (14).
5. A pipe joint sealing sleeve with leakage early warning function according to claim 1, characterized in that, A gathering groove (6) is installed in the middle of the outer side of the elastic sleeve (7), and a first sealing ring (10) is installed on the inner side of the elastic sleeve (7) at a position opposite to the gathering groove (6). The gathering groove (6) is provided with gathering wires (5) for binding.
6. A pipe joint sealing sleeve with leakage early warning function according to claim 1, characterized in that, Both ends of the inner side of the sleeve (1) are fixedly installed with limiting partitions (12), and a second sealing ring (11) is snapped into the inside of the limiting partitions (12).
7. A pipe joint sealing sleeve with leakage early warning function according to claim 1, characterized in that, The detection sleeve (2) has side panels (4) installed on both sides.