A PVC pipe fitting sealing detection device
By combining gas and water flow detection with an adjustable mounting bracket clamping structure, the problem of low efficiency and insufficient accuracy in existing PVC pipe fitting sealing tests is solved, achieving efficient and accurate sealing tests.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XINJIANG ZHONGCAI PIPELINE CO LTD
- Filing Date
- 2025-08-13
- Publication Date
- 2026-06-12
AI Technical Summary
Existing methods for testing the sealing of PVC pipe fittings are inefficient, waste water resources, and are difficult to accurately locate leaks. Traditional devices are also prone to damaging pipe fittings.
A dual detection method is adopted, which utilizes the simultaneous entry of gas and water into the pipe, monitors pressure changes through a pressure gauge, and performs seal detection by clamping the pipe end with an adjustable mounting seat.
It improves detection accuracy and efficiency, reduces water waste, and can accurately locate leak points, preventing damage to pipe fittings.
Smart Images
Figure CN224354034U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of testing device technology, and in particular to a PVC pipe fitting sealing test device. Background Technology
[0002] PVC pipe fittings are widely used in water supply and drainage, chemical transportation, and other fields due to their advantages such as corrosion resistance, low cost, and convenient installation. The sealing performance of pipe fittings is a core indicator for ensuring the safe operation of pipeline systems. If there is a potential for leakage, it may lead to media seepage, system pressure drop, or even safety accidents.
[0003] Existing methods for testing the sealing performance of PVC pipe fittings mainly include water pressure testing and air pressure testing. Water pressure testing requires filling the pipe fitting with high-pressure water and judging the sealing performance by observing changes in water level. However, it suffers from problems such as low testing efficiency, serious waste of water resources, easy freezing and cracking of pipe fittings in winter, and high site requirements. Air pressure testing, on the other hand, achieves detection by filling the pipe fitting with compressed air and monitoring pressure changes. However, traditional devices often lack intuitive structures for observing leak points, making it difficult to accurately locate the leak location. Furthermore, the pressure control accuracy is insufficient, and the pipe fittings are easily damaged by instantaneous high pressure. Therefore, we propose a PVC pipe fitting sealing testing device to solve the above problems. Utility Model Content
[0004] The purpose of this utility model is to address the shortcomings of existing technologies mentioned in the background section by proposing a PVC pipe fitting sealing performance testing device.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A PVC pipe fitting sealing performance testing device includes a testing chamber with a door on the front. Inside the testing chamber, a pipeline is installed, with one end extending to the outside. A regulating valve is installed at the end of the pipeline. An air inlet pipe is installed at the middle position of the pipeline facing the outside. A water level pipe is installed at one end of the pipeline. A water inlet pipe is installed at the end of the pipeline inside the testing chamber, with its top end extending through the top of the testing chamber to the outside. Regulating valves are installed at the tops of the air inlet pipe, water level pipe, and water inlet pipe. A pressure gauge is installed at one end of the pipeline inside the testing chamber, extending through the top of the testing chamber to the outside. Two placement boxes are installed inside the testing chamber, with both sets of pipelines extending through the top of the placement boxes at the ends of the pipelines inside the testing chamber.
[0007] It can achieve better detection accuracy by using both gas and water flow.
[0008] Preferably, a first placement seat is provided at the end of the laying pipe that runs through the top of the placement box, a second placement seat is provided at the bottom inside the placement box, and a shut-off valve is provided on the outside of the laying pipe;
[0009] The pipeline can be sealed off by turning the shut-off valve, which makes it easy to remove the pipes and prevents all the water inside the pipeline from flowing out.
[0010] Preferably, both the first and second placement seats have a T-shaped cross-section, the first placement seat is a through-type placement seat, and the second placement seat is a solid sealed placement seat.
[0011] The two ends of the pipe can be connected to the first and second placement seats respectively, so that water and gas can enter the inside of the pipe through the first placement seat and then be blocked by the second placement seat, thus keeping the water inside the pipe for testing.
[0012] Preferably, an installation sleeve rod is fixedly provided at the bottom of the inner side of the placement box, a rotating block is provided at the bottom of the second placement seat, a threaded rod is provided at the bottom of the rotating block, and the threaded rod extends into the interior of the installation sleeve rod and is threadedly connected to it.
[0013] The rotating block can be used to drive the threaded rod to rotate, thereby lifting the second placement seat and clamping and sealing the pipe to be inspected.
[0014] Preferably, the rotating block has a hexagonal structure;
[0015] It allows personnel to easily rotate the rotating block using tools, making it more convenient for the rotating block to drive the threaded rod.
[0016] Preferably, the adjustable range of the regulating valve at the top of the intake pipe is 0-0.6 MPa;
[0017] It can achieve stepless pressure adjustment to meet the testing requirements of PVC drainage pipe fittings with different pressure requirements.
[0018] Preferably, the pressure gauge has a range of 0-0.6 MPa and an accuracy class of 1.6.
[0019] It can display the pressure inside the detection chamber in real time and accurately, making it easy for operators to monitor pressure changes.
[0020] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0021] 1. This utility model allows gas to enter the interior of the pipeline through the air inlet pipe, and then water to enter the interior of the pipeline through the water inlet pipe. Both enter the interior of the placement box at the same time to complete the inspection of the pipe material, thereby improving the accuracy of the pipe sealing test.
[0022] 2. This utility model allows the pipe to be placed inside the placement box, with its top end aligned with the first placement seat. Then, rotating the rotating block causes the threaded rod to rotate, raising the height of the second placement seat through the thread. This allows the second placement seat to clamp the bottom end of the pipe. The mutual clamping of the first and second placement seats achieves a seal on the pipe, resulting in better sealing detection. Attached Figure Description
[0023] Figure 1 This is a three-dimensional structural diagram of a PVC pipe fitting sealing test device proposed in this utility model;
[0024] Figure 2 for Figure 1 A structural diagram showing the middle compartment door in the open position;
[0025] Figure 3 for Figure 2 A diagram showing the placement of the box in the middle;
[0026] Figure 4 for Figure 3 A schematic diagram of the structure in the separated state of the second placement seat and the mounting sleeve rod.
[0027] In the diagram: 1. Testing chamber; 2. Chamber door; 3. Piping; 4. Air inlet pipe; 5. Water level pipe; 6. Regulating valve; 7. Pressure gauge; 8. Water inlet pipe; 9. Placement box; 10. Shut-off valve; 11. First placement seat; 12. Second placement seat; 13. Mounting sleeve; 14. Rotating block; 15. Threaded rod. Detailed Implementation
[0028] 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.
[0029] Reference Figure 1-4The device shown is a PVC pipe fitting sealing tester. A door 2 is hinged to the front of the test chamber 1, ensuring the chamber is sealed when closed. A pipeline 3 is installed inside the test chamber 1, with one end extending through the side wall to the outside. A regulating valve 6 is installed at the end of the pipeline 3 near the test chamber 1. An air inlet pipe 4 is fixedly installed in the middle of the pipeline 3, with a regulating valve 6 also installed at its top. The pipeline 3 extends away from the test chamber 1. A water level pipe 5 is fixedly installed at the end of the pipeline 3, and a regulating valve 6 is also installed at the top of the water level pipe 5. Then, a pressure gauge 7 is fixedly installed at the part of the pipeline 3 located inside the detection box 1. The top of the pressure gauge 7 extends through the top of the detection box 1 to the outside. A water inlet pipe 8 is fixedly installed at the tail end of the pipeline 3 located inside the detection box 1. The top of the water inlet pipe 8 also extends through the detection box 1 to the outside. At the same time, a regulating valve 6 is fixedly installed at the top of the water inlet pipe 8. Then, two sets of pipelines extend downwards from the outside of the pipeline 3 between the pressure gauge 7 and the water inlet pipe 8.
[0030] For a detailed description of the placement box 9 in this embodiment, please refer to [link / reference]. Figure 3 and Figure 4 Two sets of placement boxes 9 are fixedly installed at the bottom of the inner side of the detection box 1, so that the two sets of pipes extending downward through the laying pipe 3 pass through the placement box 9 and extend into the interior of the placement box 9. At the same time, a shut-off valve 10 is fixedly installed between the two sets of pipes. A first placement seat 11 is fixedly installed at one end of the pipe extending into the interior of the placement box 9. The cross-section of the first placement seat 11 is T-shaped. Then, an installation sleeve rod 13 is fixedly installed at the bottom of the inner side of the placement box 9. A second placement seat 12 is placed above the installation sleeve rod 13. The shape of the second placement seat 12 is adapted to the shape of the first placement seat 11. Then, a rotating block 14 is fixedly installed at the bottom of the second placement seat 12. The rotating block 14 is hexagonal. Then, a threaded rod 15 is fixedly installed at the bottom of the rotating block 14, so that the threaded rod 15 extends into the interior of the installation sleeve rod 13 and is threadedly connected to it.
[0031] Working principle: When using this utility model, open the box door 2, and then place the pipe to be tested inside the placement box 9, so that the top end of the pipe is connected to the first placement seat 11, and the bottom end of the pipe is connected to the second placement seat 12. Rotate the rotating block 14 with an external tool, so that the rotating block 14 drives the threaded rod 15 to rotate, thereby causing the threaded rod 15 to drive the rotating block 14 and the second placement seat 12 to rise, so that the second placement seat 12 and the first placement seat 11 clamp and seal the two ends of the pipe. Then, open the regulating valve 6, so that external water enters the laying pipeline 3 through the water inlet pipe 8 until water overflows at the water level pipe 5. Then, close the regulating valve 6 on the water inlet pipe 8 and the water level pipe 5 to seal. Then, open the regulating valve 6 on the air inlet pipe 4, so that the air source enters the laying pipeline 3 through the air inlet pipe 4 until the pressure gauge 7 reaches a stable value, and then close the regulating valve 6 on the laying pipeline 3 to seal.
[0032] If the value on pressure gauge 7 remains stable for a certain period of time without change, it indicates that there is no obvious leak in the tested pipe. After the test is completed, close the shut-off valve 10 and then remove the pipe from the storage box 9.
[0033] In this utility model, the installation, connection or setting methods of all the components mentioned above are common mechanical methods, and the specific structure, model and coefficient index of all the components are their own technologies. As long as they can achieve their beneficial effects, they can be implemented, so they will not be described in detail.
[0034] The above embodiments are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model shall be considered equivalent substitutions and shall be included within the protection scope of the present utility model.
[0035] In this utility model, unless otherwise stated, directional terms such as "up, down, left, right, front, back, inside, outside, and vertical and horizontal" in the terminology only represent the orientation of the term in its conventional use or are common names understood by those skilled in the art, and should not be regarded as limitations on the term. At the same time, numerals such as "first," "second," and "third" do not represent specific quantities or orders, but are only used to distinguish names. Moreover, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a series of elements includes not only those elements, but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
Claims
1. A PVC pipe fitting sealing performance testing device, comprising a testing chamber (1), characterized in that, The front of the testing chamber (1) is provided with a door (2). Inside the testing chamber (1) is a laying pipe (3). The end of the laying pipe (3) extends to the outside. The end of the laying pipe (3) is provided with a regulating valve (6). An air inlet pipe (4) is provided at the middle position of the laying pipe (3) on the outside. A water level pipe (5) is provided at the end of the laying pipe (3). A water inlet pipe (8) is provided at the end of the laying pipe (3) inside the testing chamber (1). The top of the water inlet pipe (8) is... The top of the test chamber (1) extends to the outside. The top of the air inlet pipe (4), water level pipe (5) and water inlet pipe (8) are all equipped with regulating valves (6). The end of the laying pipeline (3) located inside the test chamber (1) is equipped with a pressure gauge (7). The pressure gauge (7) extends through the top of the test chamber (1) to the outside. The test chamber (1) is equipped with two sets of placement boxes (9). The two sets of pipelines extend through the top of the placement box (9) at the end of the laying pipeline (3) located inside the test chamber (1).
2. The PVC pipe fitting sealing test device according to claim 1, characterized in that, A first placement seat (11) is provided at the end of the laying pipe (3) that runs through the top of the placement box (9), and a second placement seat (12) is provided at the bottom inside the placement box (9). A shut-off valve (10) is provided on the outside of the laying pipe (3).
3. The PVC pipe fitting sealing performance testing device according to claim 2, characterized in that, The cross-sections of the first placement seat (11) and the second placement seat (12) are both T-shaped. The first placement seat (11) is a through-type placement seat, and the second placement seat (12) is a solid sealed placement seat.
4. The PVC pipe fitting sealing test device according to claim 3, characterized in that, The bottom of the placement box (9) is fixedly provided with an installation sleeve rod (13), and the bottom of the second placement seat (12) is provided with a rotating block (14). The bottom of the rotating block (14) is provided with a threaded rod (15), which extends into the interior of the installation sleeve rod (13) and is threadedly connected to it.
5. The PVC pipe fitting sealing performance testing device according to claim 4, characterized in that, The rotating block (14) has a hexagonal structure.
6. The PVC pipe fitting sealing test device according to claim 1, characterized in that, The adjustable range of the regulating valve (6) at the top of the air intake pipe (4) is 0-0.6 MPa.
7. The PVC pipe fitting sealing test device according to claim 1, characterized in that, The pressure gauge (7) has a range of 0-0.6 MPa and an accuracy class of 1.6.