A test device for simulating rubber ring seals
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-23
- Publication Date
- 2026-08-14
AI Technical Summary
实际管道进行对接试验，造成不足之处在于：耗费大量的人力与时间，安装的精度受人为的因素影响，给试验带来较大的误差
[0005]本实用新型的有益效果是，可以模拟PCCP管道接头在安装间隙不同时，胶圈压缩变形情况，胶圈闭水能力。
Smart Images
Figure CN224636131U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a test device for simulating rubber ring seals, and in particular a test device for simulating PCCP pipe joints. Background Technology
[0002] Before leaving the factory, PCCP pipes undergo a type inspection test to assess the relative rotation angle of the joints. This test is conducted under constant pressure for 5 minutes at the designed working pressure. When the allowable relative rotation angle specified in the standard is reached, the pipe joint should not leak. Before the test, the dimensions of the socket and spigot, the diameter of the rubber ring cross-section, and the length of the rubber ring need to be measured for both pipes. Each test requires the use of large hoisting equipment to lift the pipes to the test area and connect the two pipes. This test is relatively time-consuming. If the selected rubber ring size is unsuitable, the relative rotation angle test may fail, necessitating pipe removal and reinstallation. Simulating the working conditions of PCCP pipe joints and rubber rings is crucial to reducing actual test failures. PCCP pipe joints use steel socket and spigot fittings. The spigot is a specially designed steel profile with grooves. The rubber ring is filled into the groove according to the cross-sectional design. After installation, the rubber ring is subjected to bidirectional compression to create a sealing force to withstand high water pressure. The drawbacks of conducting actual pipeline docking tests are that they consume a lot of manpower and time, and the installation accuracy is affected by human factors, which brings significant errors to the test. Utility Model Content
[0003] The technical problem to be solved by the present invention is to provide a test device for simulating PCCP pipe joints, which can not only reflect the relationship between the fitting and installation clearance of the prototype PCCP pipe joint, the deformation of the rubber ring, and the water tightness of the joint, but also has a simple test method.
[0004] The technical solution adopted by this utility model to solve its technical problem is: a test device for simulating PCCP pipe joints, including a spigot plate (6), a rubber ring (7), a socket plate (8), a pressure pump (1), and a pressure testing machine (13). This test device changes the compression deformation of the rubber ring by adjusting the installation gap between the socket plate (8) and the spigot plate (6) through the pressure testing machine (13), which can truly reflect the compression deformation of the rubber ring at different installation gaps during the actual PCCP pipe joint installation process; water pressure is injected through the pressure hole (4) on the spigot plate, and when water flows out from the overflow hole (9) of the socket plate (8), the bolt (10) is closed, simulating the pressure-sealing water tightness of the actual pipe joint.
[0005] The beneficial effect of this utility model is that it can simulate the compression deformation of the rubber ring and the water-tightness of the rubber ring when the installation gap of the PCCP pipe joint is different. Attached Figure Description
[0006] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0007] Figure 1 Schematic diagram of the PCCP pipe joint testing device Figure 2 Schematic diagram of cross-section of the socket plate Figure 3 Schematic diagram of the cross section of the socket plate The diagram includes a pressure pump (1), a pressure gauge (2), a hose (3), a pressure hole (4), a bolt with a hole (5), a socket plate (6), a rubber ring (7), a socket plate (8), an overflow hole (9), a sealing bolt (10), a drain hole (11), a rubber ring groove (12), and a pressure testing machine (13). Detailed Implementation
[0008] exist Figure 1 In the process, the spigot plate (6), rubber ring (7), and socket plate (8) are assembled and placed on the pressure testing machine (13); the pressure hole (4) of the spigot plate (6) is connected with a bolt with a hole (5), a hose (3), a pressure gauge (2), and a pressure pump (1), and the sealing bolt (10) is bolted to the socket plate (8).
[0009] exist Figure 2 In the middle, there are two rubber ring grooves (12) in the spigot plate (6), a drain hole (11) is machined at the bottom, and a pressure hole (4) is machined on the side. The outlet of the pressure hole (4) is located in the middle of the two rubber ring grooves (12).
[0010] exist Figure 3 In the middle, an overflow hole (9) is provided in the socket plate (8), and the overflow direction is from bottom to top and discharged from the side of the socket plate (8).
Claims
1. A test apparatus for simulating rubber ring seals, comprising a socket plate (6), a rubber ring (7), a socket plate (8), a pressure pump (1), and a pressure testing machine (13), characterized in that: This test device uses a pressure testing machine (13) to adjust the installation gap between the socket plate (8) and the spigot plate (6) to change the compression deformation of the rubber ring.
2. The test apparatus according to claim 1, characterized in that: The spigot plate (6) has two rubber ring grooves (12), a drain hole (11) is machined at the bottom, and a pressure hole (4) is machined on the side. The outlet of the pressure hole (4) is located in the middle of the two rubber ring grooves (12).
3. The test apparatus according to claim 1, characterized in that: Water pressure is injected through the pressure hole (4) on the socket plate, and water can flow out from the overflow hole (9) of the socket plate (8) and be sealed with bolts (10).