A display device for testing the sealing effect of a sealing joint by replacing water pressure with air pressure

Abstract

The utility model discloses a kind of display device for testing sealing effect of sealing section by using air pressure instead of water pressure, it is related to heat supply pipeline sealing test equipment technical field. Including simulation pipeline, outer tube, air inlet, pressure gauge and waterproof sealing structure, outer tube is sleeved in simulation pipeline surface, simulation pipeline and outer tube are transparent material pipeline air inlet and pressure gauge are all installed in outer tube. The utility model is set by simulation pipeline etc., air pressure test does not need a large number of water storage, avoids the equipment pollution and damage caused by water leakage, and air inlet can accurately control pressure value, pressure gauge reading is intuitive, can quickly judge sealing effect, greatly improves test efficiency and safety;On the other hand, the assembly state and sealing process of waterproof sealing piece, protective shell and annular clamping groove can be clearly observed in the transparent material simulation pipeline and outer tube, which is convenient for troubleshooting failure reason.

Description

Technical Field

[0001] This utility model relates to the technical field of heating pipeline sealing testing equipment, specifically a demonstration device that uses air pressure instead of water pressure to test the sealing effect of a sealing joint. Background Technology

[0002] In heating pipeline engineering, leaks are prone to occur in the gaps between pipes passing through walls in manholes, affecting the normal operation of the heating system and the quality of the project. Traditional methods for testing the sealing effect often use water pressure testing, which has problems such as safety hazards (e.g., excessive water pressure can cause device rupture, and water leakage is difficult to control), poor pressure control accuracy, and insufficient intuitiveness of test results. There is an urgent need for a safer, more controllable, and more intuitive testing device. To address this situation, this utility model proposes a novel solution to improve the above-mentioned problems. Utility Model Content

[0003] This invention provides a demonstration device for testing the sealing effect of sealing joints by using air pressure instead of water pressure. By using air pressure testing, the sealing effect of sealing joints at the wall penetration points of heating pipeline well chambers can be safely, controllably, and intuitively tested, providing a reliable tool for the performance testing and engineering application of sealing joints.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a demonstration device for testing the sealing effect of a sealing joint by using air pressure instead of water pressure, comprising:

[0005] Simulated piping, outer pipe, air inlet, pressure gauge, and waterproof sealing structure;

[0006] The outer tube is fitted onto the surface of the simulated pipe. Both the simulated pipe and the outer tube are made of transparent material. The air inlet and pressure gauge are installed on the outer tube. Pressure is applied to the inside of the outer tube through the air inlet, and the sealing performance of the waterproof sealing structure is judged by the pressure gauge.

[0007] Further, a gap is provided between the outer tube and the simulated pipe. The outer tube is used to simulate a through-wall pipe, and the simulated pipe is used to simulate a heating pipe. The air inlet is connected to the gap between the simulated pipe and the outer tube, and a pressure gauge detects the air pressure at the gap.

[0008] Further, the waterproof sealing structure includes a waterproof seal fixed to the surface of the simulated pipe, with an annular groove at one end of the waterproof seal and one end of the outer tube inserted into the annular groove.

[0009] Furthermore, the waterproof sealing structure also includes a protective shell, which is hollow and the waterproof seal is located inside the protective shell.

[0010] Furthermore, one end of the outer tube is located inside the protective shell, and an annular groove is fixed to the outer tube near the protective shell, with one end of the protective shell inserted into the annular groove.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This demonstration device, which uses air pressure instead of water pressure to test the sealing effect of sealing joints, simulates pipelines and other components. Air pressure testing eliminates the need for large water storage, avoiding equipment contamination and damage caused by leaks. Furthermore, the air inlet allows for precise pressure control, and the pressure gauge readings are intuitive, enabling rapid assessment of the sealing effect and significantly improving testing efficiency and safety. On the other hand, the transparent simulated pipeline and outer tube allow for clear observation of the assembly status and sealing process of the waterproof seals, protective shell, and annular grooves, facilitating troubleshooting. Simultaneously, the device accurately recreates the actual scenario of heating pipelines penetrating walls, making the test results more consistent with engineering practice. This provides a reliable basis for the research and development, teaching and training, and engineering demonstration of waterproof sealing structures. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a cross-sectional structural diagram of the present invention.

[0015] In the diagram: 1. Simulated pipe; 2. Outer pipe; 3. Air inlet; 4. Pressure gauge; 5. Protective casing; 6. Annular groove; 7. Waterproof seal. Detailed Implementation

[0016] 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.

[0017] like Figures 1-2 As shown, this utility model provides a technical solution: a demonstration device for testing the sealing effect of a sealing joint by using air pressure instead of water pressure, comprising: a simulated pipe 1, an outer pipe 2, an air inlet 3, a pressure gauge 4, and a waterproof sealing structure;

[0018] The outer tube 2 is fitted onto the surface of the simulated pipe 1. Both the simulated pipe 1 and the outer tube 2 are made of transparent material. The air inlet 3 and the pressure gauge 4 are installed on the outer tube 2. Pressure is applied to the inside of the outer tube 2 through the air inlet 3 and the sealing performance of the waterproof sealing structure is judged by the pressure gauge 4.

[0019] The transparent simulated pipe 1 and outer pipe 2 allow the observer to clearly see the state of the internal waterproof sealing structure, facilitating intuitive analysis of the sealing condition by combining the readings of pressure gauge 4. The air inlet 3 serves as a pressure input channel, which can precisely control the pressure value inside the outer pipe 2, providing a foundation for subsequent stable testing of the waterproof sealing structure's sealing performance and ensuring that the testing process is traceable and the results are verifiable.

[0020] A gap is provided between the outer tube 2 and the simulated pipe 1. The outer tube 2 is used to simulate a through-wall pipe, and the simulated pipe 1 is used to simulate a heating pipe. The air inlet 3 is connected to the gap between the simulated pipe 1 and the outer tube 2. The pressure gauge 4 detects the air pressure at the gap. The gap between the simulated pipe 1 and the outer tube 2 forms a closed pressure chamber. After the air inlet 3 fills the gap, if the waterproof sealing structure is effective, the air pressure in the gap will remain stable and the reading of the pressure gauge 4 will remain unchanged. If the seal fails, the air pressure will gradually decrease with leakage, making the test results more consistent with the actual engineering situation. At the same time, the sealing status at the gap between the simulated pipe 1 and the outer tube 2 can be quickly determined by real-time monitoring by the pressure gauge 4.

[0021] The waterproof sealing structure includes a waterproof seal 7 fixed to the surface of the simulated pipe 1. One end of the waterproof seal 7 is provided with an annular groove, and one end of the outer tube 2 is inserted into the annular groove. The waterproof seal 7 forms the first sealing barrier through the insertion and cooperation of the annular groove and the outer tube 2. When the air inlet 3 fills the gap between the outer tube 2 and the simulated pipe 1, this structure can effectively prevent air pressure from leaking from the end of the outer tube 2. If the annular groove and the outer tube 2 do not fit tightly, the pressure gauge 4 will show a drop in reading, which can intuitively reflect the sealing effect of the waterproof seal 7 and lay the foundation for subsequent verification of the synergistic effect of multiple seals.

[0022] The waterproof sealing structure also includes a protective shell 5, which is hollow and contains a waterproof seal 7. The protective shell 5 encloses the waterproof seal 7, forming a second layer of sealing protection. Even if there is a small gap between the waterproof seal 7 and the outer tube 2, the protective shell 5 can prevent air pressure leakage, further improving the reliability of the sealing test. At the same time, the transparent material allows observation of whether the protective shell 5 bulges or exhibits other abnormalities due to air pressure. Combined with the pressure gauge 4 reading, the overall sealing performance of the waterproof sealing structure can be more comprehensively judged. The protective shell 8 is provided on the surface of the protective shell 5, which is both aesthetically pleasing and provides a certain degree of protection.

[0023] One end of the outer tube 2 is located inside the protective shell 5, and an annular groove 6 is fixed near the protective shell 5. One end of the protective shell 5 is inserted into the annular groove 6. The annular groove 6 can enhance the tightness of the connection between the protective shell 5 and the outer tube 2, and play the role of fixing and protecting the internal seal 5. When the air inlet 3 is pressurized, if the pressure gauge 4 reading is stable, it indicates that the multi-seal structure formed by the waterproof seal 7, the protective shell 5, and the annular groove 6 is effective. This design improves the accuracy of testing through the collaboration of multiple components, and at the same time facilitates the individual disassembly of components to check for seal failure points.

[0024] This demonstration device centers on a simulated heating pipe penetrating a wall. It uses air pressure testing to visually verify the sealing performance of the waterproof sealing structure. In the device, the outer tube 2 simulates a wall-penetrating pipe in an actual project, and the simulated pipe 1 simulates a heating pipe. The gap between them forms a sealed pressure chamber. The air inlet 3 connects to this gap, allowing for precise application of air pressure into the chamber. The pressure gauge 4 monitors the pressure changes within the chamber in real time, forming a complete closed loop of pressure input and monitoring. The waterproof sealing structure achieves airtight sealing through the collaborative efforts of multiple components. Simultaneously, the annular groove 6 near the protective shell 5 on the outer tube 2 enhances the connection and sealing between the protective shell 5 and the outer tube 2, preventing air pressure from escaping through the gap. During the test, if the pressure gauge 4 reading is stable, it indicates that the multi-layered sealing structure consisting of the waterproof seal 7, the protective shell 5, and the annular groove 6 is effective. If the reading decreases, it indicates a sealing failure at the corresponding location. Combined with the transparent simulated pipe 1 and outer tube 2, the failure point can be visually located.

[0025] This demonstration device centers on a simulated heating pipe penetrating a wall. It uses air pressure testing to visually verify the sealing performance of the waterproof sealing structure. In the device, the outer tube 2 simulates a wall-penetrating pipe in an actual project, and the simulated pipe 1 simulates a heating pipe. The gap between them forms a sealed pressure chamber. The air inlet 3 connects to this gap, allowing for precise application of air pressure into the chamber. The pressure gauge 4 monitors the pressure changes within the chamber in real time, forming a complete closed loop of pressure input and monitoring. The waterproof sealing structure achieves airtight sealing through the collaborative efforts of multiple components. Simultaneously, the annular groove 6 near the protective shell 5 on the outer tube 2 enhances the connection and sealing between the protective shell 5 and the outer tube 2, preventing air pressure from escaping through the gap. During the test, if the pressure gauge 4 reading is stable, it indicates that the multi-layered sealing structure consisting of the waterproof seal 7, the protective shell 5, and the annular groove 6 is effective. If the reading decreases, it indicates a sealing failure at the corresponding location. Combined with the transparent simulated pipe 1 and outer tube 2, the failure point can be visually located.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended embodiments and their equivalents.

Claims

1. A demonstration device for testing the sealing effect of a sealing joint by using air pressure instead of water pressure, characterized in that, include: Simulated pipe (1), outer pipe (2), air inlet (3), pressure gauge (4), and waterproof sealing structure; The outer tube (2) is fitted onto the surface of the simulated pipe (1). Both the simulated pipe (1) and the outer tube (2) are made of transparent material. The air inlet (3) and pressure gauge (4) are installed on the outer tube (2). Pressure is applied to the inside of the outer tube (2) through the air inlet (3) and the sealing performance of the waterproof sealing structure is judged by the pressure gauge (4).

2. The demonstration device for testing the sealing effect of a sealing joint by using air pressure instead of water pressure according to claim 1, characterized in that: A gap is provided between the outer tube (2) and the simulated pipe (1). The outer tube (2) is used to simulate a wall-penetrating pipe, and the simulated pipe (1) is used to simulate a heating pipe. The air inlet (3) is connected to the gap between the simulated pipe (1) and the outer tube (2). The pressure gauge (4) detects the air pressure at the gap.

3. The demonstration device for testing the sealing effect of a sealing joint by using air pressure instead of water pressure according to claim 1, characterized in that: The waterproof sealing structure includes a waterproof seal (7) fixed to the surface of the simulated pipe (1), one end of the outer tube (2) is connected to one end of the waterproof seal (7), and is provided with an annular groove (6).

4. The demonstration device for testing the sealing effect of a sealing joint by using air pressure instead of water pressure according to claim 1, characterized in that: The waterproof sealing structure also includes a protective shell (5), which is hollow and the waterproof seal (7) is disposed inside the protective shell (5).

5. The demonstration device for testing the sealing effect of a sealing joint by using air pressure instead of water pressure according to claim 1, characterized in that: One end of the outer tube (2) is located inside the protective shell (5), and an annular groove (6) is fixed near the protective shell (5) of the outer tube (2), and one end of the protective shell (5) is inserted into the annular groove (6).

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