A communication pipe connection sealing tester
By designing a communication conduit for easy installation to connect the sealing detector, and utilizing a pneumatic control system and rubber sealing strips, the shortcomings of existing devices in terms of convenience and stability are solved, achieving efficient sealing detection and leak identification.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG ZHONGXUN COMM EQUIP IND CO LTD
- Filing Date
- 2025-08-15
- Publication Date
- 2026-05-26
AI Technical Summary
Existing testing devices for the sealing of communication pipe connections are inadequate in terms of convenience and stability, making it difficult to perform testing operations efficiently.
A detector comprising a first detection cover and a second detection cover is designed. A rubber sealing strip is bonded with adhesive, and a pressure gauge and an air extraction pipeline system are used to perform a sealing test. A one-way valve and a piston rod are used for air pressure control to achieve convenient sealing test.
It enables convenient on-site installation and efficient sealing testing, ensuring testing stability and quickly identifying leakage problems at connections. It has a simple structure and is easy to use.
Smart Images

Figure CN224286297U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of communication pipe connection sealing test technology, and in particular to a communication pipe connection sealing tester. Background Technology
[0002] Communication conduits are pipe systems specifically designed to house and protect communication cables (such as fiber optics and copper cables), serving as the fundamental physical channels for building the "highways" of modern information networks. Their primary function is to provide a safe, stable, and scalable laying environment for cables, effectively resisting risks such as external physical damage, moisture, sediment, chemical corrosion, and rodent infestation, ensuring long-term reliability of signal transmission and network lifespan. The sealing performance of communication conduit connections is crucial, directly affecting the reliability, lifespan, performance, and security of the entire communication network system. Neglecting or improperly handling these connections can lead to a series of serious problems; therefore, testing the sealing performance of communication conduit connections is of paramount importance.
[0003] Existing testing devices are insufficient in performing efficient and convenient testing at each connection point, and the overall structural stability and testing stability need to be further improved. Utility Model Content
[0004] The purpose of this invention is to provide a communication pipe connection sealing tester that can be conveniently installed on-site at the connection point and perform efficient sealing testing. It is easy to operate and has high testing stability.
[0005] To achieve the above objectives, the present invention provides the following technical solution:
[0006] A communication pipe connection sealing tester includes a communication pipe. A first test cover and a second test cover are fastened to the outer cover of the connection of the communication pipe. The first test cover and the second test cover are installed together, and rubber sealing strips are glued to the port edges of the first test cover and the second test cover. A pressure gauge is installed on the outer surface of the second test cover, and an air extraction pipe is installed on the outer surface of the second test cover.
[0007] By adopting the above technical solution, the detector can be conveniently installed at the connection of communication pipes, and the overall detection operation is convenient and efficient.
[0008] Furthermore, a connecting lug is integrally connected to the symmetrical side surfaces of the first and second detection covers respectively. The two connecting lugs on the first detection cover are provided with mounting holes, and a connecting screw is installed inside the mounting holes. The two connecting lugs on the second detection cover are provided with through holes, one end of the connecting screw passes through the through hole, and a locking knob is threaded onto the external thread of the connecting screw.
[0009] By adopting the above technical solution, the stability of the positions of the first and second detection covers can be ensured in the early stages of detection.
[0010] Furthermore, a first control valve is installed in the air extraction pipe, an air extraction cylinder is installed at one end of the air extraction pipe, two one-way valves are installed on the lower end face of the air extraction cylinder, and the air control directions of the two one-way valves are opposite. The air inlet port of the air extraction cylinder is connected to one end of the air extraction pipe, and an exhaust pipe is installed at the air outlet port of the air extraction cylinder.
[0011] By adopting the above technical solution, under the control of two one-way valves with opposite control directions, the air extraction cylinder can effectively extract the gas inside the first and second detection hoods.
[0012] Furthermore, a piston rod is slidably mounted inside the vacuum cylinder.
[0013] By adopting the above technical solution, it is ensured that the vacuum pump can perform effective vacuuming operations.
[0014] Furthermore, a return air pipe is fixedly connected to the outer surface of the second detection cover, and a second control valve is installed in the return air pipe.
[0015] By adopting the above technical solution, the second control valve can be opened after the test is completed, allowing external air to enter the interior of the first and second test covers through the return air pipe, which facilitates the disassembly and assembly of the detector.
[0016] Furthermore, the internal spaces of the first and second detection covers are connected after they are joined together.
[0017] By adopting the above technical solution, effective testing operations can be carried out.
[0018] In summary, the beneficial technical effects of this utility model are as follows:
[0019] This invention allows for sealing tests at the connection of two communication pipes. A first and second detection cover are attached to the outside of the connection. The piston rod is then repeatedly pushed and pulled. Under the action of two one-way valves with opposite air control paths, air inside the first and second detection covers enters the suction cylinder from the suction pipe and then exits from the exhaust pipe, effectively reducing the internal air pressure. The first control valve is then closed, creating a sealed space inside the first and second detection covers. At this point, the external air pressure is greater than the internal air pressure, allowing for a sealing test. During this process, a pressure gauge continuously monitors the internal air pressure. After a period of time, the gauge readings are observed. If the internal air pressure recovers too quickly, a leak is detected at the communication pipe connection. The entire testing operation is convenient to install and perform, highly user-friendly, with a simple overall structure and stable operation. Attached Figure Description
[0020] Figure 1 This is a first-view perspective view of the three-dimensional structure of this utility model;
[0021] Figure 2 This is a second perspective view of the three-dimensional structure of this utility model;
[0022] Figure 3 This is a third-view perspective view of the three-dimensional structure of this utility model.
[0023] In the diagram: 1. Communication tubing; 2. First detection cover; 3. Rubber sealing strip; 4. Connecting lug; 5. Connecting screw; 6. Locking knob; 7. Pressure gauge; 8. Suction pipe; 9. First control valve; 10. Check valve; 11. Suction cylinder; 12. Piston rod; 13. Return pipe; 14. Second control valve; 15. Second detection cover; 16. Exhaust pipe. Detailed Implementation
[0024] The method of this utility model will be further described in detail below with reference to the accompanying drawings.
[0025] Reference Figure 1 , Figure 2 , Figure 3A communication pipe connection sealing tester includes a communication pipe 1. A first detection cover 2 and a second detection cover 15 are fastened to the outer surface of the connection of the communication pipe 1. The first detection cover 2 and the second detection cover 15 are fitted together, and rubber sealing strips 3 are glued to the edges of the ports of the first detection cover 2 and the second detection cover 15. A pressure gauge 7 is installed on the outer surface of the second detection cover 15, and a suction pipe 8 is installed on the outer surface of the second detection cover 15. A first control valve 9 is installed in the pipe of the suction pipe 8. An air extraction cylinder 11 is installed at one end of the suction pipe 8. Two one-way valves 10 are installed on the lower end face of the air extraction cylinder 11, and the air control directions of the two one-way valves 10 are opposite. The air inlet of the air extraction cylinder 11 is connected to one end of the suction pipe 8, and an exhaust pipe 16 is installed at the air outlet of the air extraction cylinder 11. A piston rod 12 is slidably installed inside the air extraction cylinder 11. The internal space of the first detection cover 2 and the second detection cover 15 after being engaged is connected. This allows for sealing testing at the connection of the two communication pipes 1, where the first detection cover 2 and the second detection cover 15 can be engaged together. The second detection cover 15 is fastened to the outside of the connection between the two communication pipes 1. Then, the piston rod 12 is pushed and pulled back and forth. Under the action of the two one-way valves 10 with opposite air control, the air inside the first detection cover 2 and the second detection cover 15 can enter the air extraction cylinder 11 from the inside of the air extraction pipe 8, and then be discharged from the exhaust pipe 16. This can effectively reduce the air pressure inside the first detection cover 2 and the second detection cover 15. Then, the first control valve 9 is closed, so that the inside of the first detection cover 2 and the second detection cover 15 is in a sealed space. At this time, the external air pressure is greater than the internal air pressure of the first detection cover 2 and the second detection cover 15. At this time, the sealing test operation can be performed. During this process, the air pressure value inside the first detection cover 2 and the second detection cover 15 is detected in real time using the air pressure gauge 7. After a period of time, the value of the air pressure gauge 7 is observed. If the internal air pressure recovers too quickly, it is determined that there is a leakage problem at the connection of the communication pipe 1. The entire test operation is easy to install and perform, has strong convenience, simple overall structure, and strong working stability.
[0026] Reference Figure 1 , Figure 2 Each of the first detection cover 2 and the second detection cover 15 has a connecting lug 4 integrally connected to its symmetrical side surface. Each of the two connecting lugs 4 on the first detection cover 2 has a mounting hole, and a connecting screw 5 is snapped into the inside of the mounting hole. Each of the two connecting lugs 4 on the second detection cover 15 has a through hole, with one end of the connecting screw 5 passing through the through hole. A locking knob 6 is threaded onto the external thread of the connecting screw 5. During initial installation, the first detection cover 2 and the second detection cover 15 are aligned so that the connecting screw 5 passes through the through hole of the connecting lug 4 on the second detection cover 15. Then, the locking knob 6 is tightened. This ensures that the first detection cover 2 and the second detection cover 15 are firmly aligned and wrapped around the connection point of the communication pipe, ensuring the stability of each structural position during air extraction and enabling stable and effective air extraction.
[0027] Reference Figure 1 , Figure 2 A return air pipe 13 is fixedly connected to the outer surface of the second detection cover 15. A second control valve 14 is installed in the pipe of the return air pipe 13. After the detection is completed, the second control valve 14 can be opened to restore the air pressure inside the first detection cover 2 and the second detection cover 15 by using the return air pipe 13, so as to facilitate the disassembly of the first detection cover 2 and the second detection cover 15.
[0028] Working principle: In use, the first detection cover 2 and the second detection cover 15 are fastened together and placed on the outside of the connection between the two communication pipes 1. At this time, the connecting screw 5 passes through the through hole of the connecting lug 4 on the second detection cover 15. Then, the locking knob 6 is tightened, which ensures that the first detection cover 2 and the second detection cover 15 are firmly attached and wrapped around the connection of the communication pipes. Then, the piston rod 12 is pushed and pulled back and forth. Under the action of the two one-way valves 10 with opposite air path control, the air inside the first detection cover 2 and the second detection cover 15 can enter the air pump 11 from the inside of the air extraction pipe 8, and then be discharged from the exhaust pipe 16, which can effectively reduce the air pressure inside the first detection cover 2 and the second detection cover 15. Next, the first control valve 9 is closed, so that the interior of the first detection cover 2 and the second detection cover 15 is in a sealed space. At this time, the external air pressure is greater than the internal air pressure of the first detection cover 2 and the second detection cover 15, and the sealing test can be performed. During this process, the air pressure value inside the first detection cover 2 and the second detection cover 15 is monitored in real time using the air pressure gauge 7. After a period of time, the value of the air pressure gauge 7 is observed. If the internal air pressure recovers too quickly, it is determined that there is a leakage problem at the connection of the communication pipe 1. After the test is completed, the second control valve 14 is opened, and the air pressure inside the first detection cover 2 and the second detection cover 15 is restored using the return air pipe 13, which facilitates the disassembly of the first detection cover 2 and the second detection cover 15.
[0029] The embodiments described herein are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.
Claims
1. A leak detector for communication pipe connections, comprising a communication pipe (1), characterized in that: The communication pipe (1) is fitted with a first detection cover (2) and a second detection cover (15) on the outside of the connection. The first detection cover (2) and the second detection cover (15) are installed together, and rubber sealing strips (3) are glued to the port edges of the first detection cover (2) and the second detection cover (15). A pressure gauge (7) is installed on the outer surface of the second detection cover (15), and an air extraction pipe (8) is installed on the outer surface of the second detection cover (15).
2. A leak detector for communication pipe connections according to claim 1, characterised in that: A connecting ear (4) is integrally connected to the symmetrical side surface of the first detection cover (2) and the second detection cover (15). The two connecting ears (4) on the first detection cover (2) are provided with mounting holes, and a connecting screw (5) is installed inside the mounting hole. The two connecting ears (4) on the second detection cover (15) are provided with through holes. One end of the connecting screw (5) passes through the through hole, and a locking knob (6) is threaded onto the external thread of the connecting screw (5).
3. A leak detector for communication pipe connections as defined in claim 1, characterized in that: A first control valve (9) is installed in the pipeline of the suction pipe (8). A suction cylinder (11) is installed at one end of the suction pipe (8). Two one-way valves (10) are installed on the lower end face of the suction cylinder (11), and the air control directions of the two one-way valves (10) are opposite. The air inlet port of the suction cylinder (11) is connected to one end of the suction pipe (8), and an exhaust pipe (16) is installed at the air outlet port of the suction cylinder (11).
4. A leak detector for communication pipe joints according to claim 3, characterised in that: A piston rod (12) is slidably installed inside the vacuum cylinder (11).
5. The leak detector of claim 1, wherein: A return air pipe (13) is fixedly connected to the outer surface of the second detection cover (15), and a second control valve (14) is installed in the pipe of the return air pipe (13).
6. A leak detector for communication pipe connections according to claim 1, characterized in that: The internal spaces of the first detection cover (2) and the second detection cover (15) are connected after they are put together.