Pipe pressurization testing device
By adopting the design of sealing components in the pipe pressurized test device, including annular clamps, sealing and fastening units, the problem of poor sealing effect of existing test devices is solved, and higher sealing and testing accuracy are achieved.
Patent Information
- Application Number
- CN202421815135.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-30
- Publication Date
- 2025-06-13
- Estimated Expiration
- 2034-07-30
AI Technical Summary
The existing pipe pressurization test device has poor sealing effect, resulting in inaccurate test results.
A pipe pressurization testing device is designed, and a sealing component is adopted to include an annular clamp, a sealing and a fastening unit. It is inserted into the pipe through a cylinder, the end cover is connected to the cylinder, and the annular clamp is clamped with the cylinder, and the fastening unit strengthens the sealing effect.
Through the clamping effect of the two-fold seal structure and the annular clamp, the sealing between the pipe and the sealing is significantly enhanced, the accuracy of the test is improved, and the leakage of the pressurized medium is prevented.
Smart Images
Figure CN222979301U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pipe performance testing, in particular to a pipe pressure testing device. Background Art
[0002] PPR (Polypropylene-Random) pipe, also known as type III polypropylene pipe or random copolymer polypropylene pipe, has the advantages of energy conservation, material saving, environmental protection, light weight, high strength, corrosion resistance, smooth inner wall without scaling, simple construction and maintenance, and long service life. It is widely used in the fields of building water supply and drainage, urban and rural water supply and drainage, urban gas, power and optical cable sheaths, industrial fluid transportation, agricultural irrigation and other construction, municipal, industrial and agricultural fields.
[0003] After the existing type III polypropylene pipes are formed, there may be defects in the pipes and they cannot withstand the established pressure. Before leaving the factory, the pipes need to be subjected to a pressure test. However, the sealing effect of the existing pressure testing devices is not high and the test results are inaccurate. Summary of the Utility Model
[0004] In view of this, it is necessary to provide a pipe pressure testing device to solve the problem that the sealing effect is not good during the pressure test of the pipe, resulting in inaccurate testing.
[0005] The utility model provides a pipe pressure testing device, including:
[0006] A sealing component, the sealing component includes an annular clamp, a plug and a fastening unit. The plug has an end cover and a cylinder body. The cylinder body is used for being inserted into the pipe to be tested. The end cover is connected to one end of the cylinder body for abutting and sealing with the end of the cylinder body. The annular clamp is sleeved on the cylinder body, and a clamping space for clamping the pipe is formed between the annular clamp and the cylinder body. A plurality of the fastening units are arranged along the axial direction of the pipe. The end cover is connected to the annular clamp through the fastening unit for strengthening the seal between the end cover and the pipe to be tested.
[0007] A testing component, arranged on the end cover, and the testing component can pressurize the inner cavity of the pipe.
[0008] Further, the fastening unit includes a first connection hole, a second connection hole and a first screwing member. The first connection hole is opened on the annular clamp, the second connection hole is opened on the end cover, and the first screwing member passes through the first connection hole and the second connection hole for pulling the end cover axially from the pipe.
[0009] Further, a plurality of the second connection holes are equidistantly arranged around the central axis of the end cover, and a plurality of the first connection holes are arranged in one-to-one correspondence with the second connection holes.
[0010] Further, an annular groove is provided on the end cover. The annular groove surrounds the cylinder body, and the annular groove can form a sealing space for mating with the end of the pipe to be detected.
[0011] Further, a sealing ring for abutting against the end of the pipe to be detected is embedded in the annular groove.
[0012] Further, the annular clamp includes two half clamps and a second screwing member. The two half clamps are oppositely arranged to form a clamping space for the pipe. The ends of the two half clamps are respectively connected by the second screwing member to adjust the clamping degree between the two half clamps.
[0013] Further, a clamping piece is provided on one side of the half clamp opposite to the pipe, and the clamping piece is embedded in the half clamp.
[0014] Further, the clamping piece is provided with protruding strips arranged along the circumferential direction of the pipe.
[0015] Further, an annular support is provided inside the cylinder body. The annular support is fixedly connected to the cylinder body and is arranged opposite to the annular clamp. The annular support can prevent the deformation of the cylinder body.
[0016] Further, the test assembly includes a pressure pipe. The pressure pipe is fixedly connected to the end cover, and the pressure pipe can input a medium into the pipe to apply pressure.
[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0018] (1) For a pipe pressure testing device of the present utility model, a sealing assembly is provided. The sealing assembly includes a plug element. The plug has an end cover and a cylinder body. The cylinder body is inserted into the pipe to be tested. The outer peripheral surface of the cylinder body abuts against the inner wall of the pipe to form a first-stage sealing structure. The end cover is connected to one end of the cylinder body, and the end of the end cover abuts against the end of the pipe to form a second-stage sealing structure. The first-stage sealing structure and the second-stage sealing structure cooperate with each other, which can enhance the seal between the pipe and the plug, enhance the sealing performance, and improve the accuracy of the test.
[0019] (2) A pipe pressurization test device of the present utility model, the sealing assembly includes an annular clamp and fastening units. The annular clamp is sleeved on the cylinder body, and a clamping space for clamping the pipe is formed between the annular clamp and the cylinder body. The annular clamp clamps the pipe from the outside to the inside, and the cylinder body supports the pipe from the inside to the outside. The annular clamp and the cylinder body cooperate to compress the gap between the cylinder body and the pipe, enhancing the sealing performance of the first sealing structure. A plurality of fastening units are arranged along the axial direction of the pipe, and the end cover is connected to the annular clamp through the fastening units. The plurality of fastening units act on the end cover simultaneously, causing the end cover to move relative to the annular clamp, so that the end cover abuts against the end of the pipe, enhancing the sealing performance of the second sealing structure. The arrangement of the annular clamp and the fastening units can further strengthen the seal between the plug and the pipe, prevent the leakage of the pressurizing medium, and improve the accuracy of the test. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] The drawings described herein are used to provide a further understanding of the present utility model and form a part of this application. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation of the present utility model. In the drawings:
[0021] Figure 1 is a schematic structural diagram of the whole of the present utility model Figure 1 ;
[0022] Figure 2 is a schematic structural diagram of the whole of the present utility model Figure 1 ;
[0023] Figure 3 is an exploded view of the sealing assembly in the present utility model;
[0024] Figure 4 is a schematic structural diagram of the plug in the present utility model;
[0025] Figure 5 is a schematic structural diagram of the half clamp in the present utility model;
[0026] Figure 6 is Figure 2 a partially enlarged schematic structural diagram of part A of
[0027] In the figure, 100, sealing assembly; 110, annular clamp; 111, half clamp; 111a, clamping piece; 111b, protruding strip; 112, second screwing member; 120, plug; 121, end cover; 121a, annular groove body; 122, cylinder body; 122a, annular bracket; 130, fastening unit; 131, first connection hole; 132, second connection hole; 133, first screwing member; 200, test assembly; 210, pressurizing pipe; 300, pipe; DETAILED DESCRIPTION OF THE EMBODIMENTS
[0028] The preferred embodiments of the present invention will be specifically described below in conjunction with the accompanying drawings. The accompanying drawings form a part of this application and are used together with the embodiments of the present invention to explain the principles of the present invention, rather than to limit the scope of the present invention.
[0029] A pipe pressurization test device in this embodiment relates to the technical field of pipe performance testing. A sealing assembly 100 is provided at the end of the pipe 300 to be tested. The plug 120 in the sealing assembly 100 is inserted into the pipe 300. The cylinder body 122 and the end cover 121 of the sealing plug form a two - layer seal for the pipe 300. The annular clamp 110 arranged opposite to the cylinder body 122 can press the pipe 300 to enhance the seal between the pipe 300 and the cylinder body 122. The end cover 121 is connected to the annular clamp 110 through the fastening unit 130, which can press the end cover 121, strengthen the seal between the end cover 121 and the pipe 300, prevent the leakage of the pressurized medium inside the pipe 300, and improve the accuracy of the test.
[0030] Please refer to Figures 1 to 6 , a pipe pressurization test device in this embodiment includes a sealing assembly 100 and a test assembly 200. The sealing assembly 100 can block both ends of the pipe 300, so that a relatively sealed space is formed inside the pipe 300. The test assembly 200 can inject a high - pressure medium into the space to test the compressive performance of the pipe 300.
[0031] The sealing assembly 100 includes an annular clamp 110, a plug 120, and a fastening unit 130. The plug 120 has an end cover 121 and a cylinder body 122. The cylinder body 122 is inserted into the pipe 300. The outer peripheral surface of the cylinder body 122 abuts against the inner wall of the pipe 300 to form a first - layer sealing structure. The end cover 121 is connected to one end of the cylinder body 122, and the end of the end cover 121 abuts against the end of the pipe 300 to form a second - layer sealing structure. The first - layer sealing structure and the second - layer sealing structure cooperate with each other to enhance the seal between the pipe 300 and the plug 120, enhance the sealing performance, and improve the accuracy of the test.
[0032] The annular clamp 110 is sleeved on the cylinder body 122. A clamping space for clamping the pipe 300 is formed between the annular clamp 110 and the cylinder body 122. The annular clamp 110 clamps the pipe 300 from the outside to the inside, and the cylinder body 122 supports the pipe 300 from the inside to the outside. The annular clamp 110 and the cylinder body 122 cooperate to compress the gap between the cylinder body 122 and the pipe 300, enhancing the sealing performance of the first sealing structure. A plurality of fastening units 130 are arranged along the axial direction of the pipe 300. The end cover 121 is connected to the annular clamp 110 through the fastening units 130. The plurality of fastening units 130 act on the end cover 121 simultaneously, causing the end cover 121 to move relative to the annular clamp 110, so that the end cover 121 abuts against the end of the pipe 300, enhancing the sealing performance of the second sealing structure. The settings of the annular clamp 110 and the fastening units 130 can further strengthen the seal between the plug 120 and the pipe 300, hinder the leakage of the pressurized medium, and improve the accuracy of the test.
[0033] The test assembly 200 is arranged on the end cover 121. The test assembly 200 can communicate with the internal space of the pipe 300 to pressurize the inside of the pipe 300 and test the compressive performance of the pipe 300.
[0034] In some embodiments, please refer to Figure 3 , the fastening unit 130 includes a first connection hole 131, a second connection hole 132 and a first screwing member 133. The first screwing member 133 is specifically a bolt and nut. The first connection hole 131 is opened on the annular clamp 110, and the second connection hole 132 is opened on the end cover 121. The bolt passes through the first connection hole 131 and the second connection hole 132 in sequence and is connected to the nut. The head of the bolt and the nut abut against the annular clamp 110 and the end cover 121 respectively, which can pull the end cover 121 to move relative to the annular clamp 110. The annular clamp 110 remains stationary relative to the pipe 300, and the end cover 121 presses against the end of the pipe 300, forming an extrusion on the pipe 300, further improving the sealing performance of the first sealing structure.
[0035] As a further implementation manner, please continue to refer to Figure 3 , a plurality of second connection holes 132 are arranged equidistantly around the central axis of the end cover 121. A plurality of first connection holes 131 are arranged in one-to-one correspondence with the second connection holes 132. The fastening units 130 inserted into the second connection holes 132 and the first connection holes 131 are also arranged equidistantly around the central axis of the end cover 121. The connection points between the annular clamp 110 and the end cover 121 can evenly distribute the applied stress, avoiding stress concentration at a certain point, thereby reducing the risk of seal failure or damage to the pipe 300 caused by local stress concentration.
[0036] As a further implementation, a sealing ring for abutting against the end of the pipe 300 to be detected is embedded in the annular groove 121a. The embedded sealing ring can be in close contact with the end of the pipe 300, significantly improving the overall sealing effect. The contact area between the sealing ring and the end of the pipe 300 is large, which can more effectively prevent fluid leakage and form a highly tight seal.
[0037] In some embodiments, please continue to refer to Figure 3 , the annular clamp 110 includes two half clamps 111 and a second screwing member 112. The two half clamps 111 are arranged oppositely to form a clamping space for the pipe 300. The ends of the two half clamps 111 are respectively connected by the second screwing member 112. The design of the two half clamps 111 enables the annular clamp 110 to adapt to pipes 300 with different diameters and wall thicknesses, improving the versatility of the device. Through the adjustment of the second screwing member 112, the clamping degree between the two half clamps 111 can be flexibly adjusted to ensure close contact and good sealing with the pipe 300 to be tested.
[0038] In the specific implementation process, the end of the half clamp 111 extends radially relative to the pipe body to form a docking portion, and a third connection hole is opened on the docking portion. The second screwing member 112 is specifically a bolt and nut. The bolt sequentially passes through the two second connection holes 132 and is connected to the nut. The head of the bolt and the nut respectively abut against the two half clamps 111, which can provide uniform clamping force and make the clamping of the pipe 300 by the two half clamps 111 more stable.
[0039] In a specific embodiment, please refer to Figure 5 , a clamping piece 111a is provided on one side of the half clamp 111 relative to the pipe 300. The clamping piece 111a is embedded in the half clamp 111. The clamping piece 111a can increase the clamping force of the annular clamp 110 on the pipe 300 and improve the sealing effect. The clamping piece 111a increases the contact area between the half clamp 111 and the pipe 300, enhances the clamping force, and makes the pipe 300 more firmly fixed in the half clamp 111. The design of the clamping piece 111a can evenly distribute the clamping force on the surface of the pipe 300, avoiding local stress concentration. The evenly distributed clamping force reduces local stress concentration and avoids damage or deformation of the pipe 300 caused by excessive local force.
[0040] As a further implementation, please refer to Figure 6, the clamping piece 111a is provided with a protruding strip 111b arranged along the circumferential direction of the pipe 300. The protruding strip 111b increases the frictional force between the clamping piece 111a and the pipe 300, further enhancing the clamping force. The protruding strip 111b increases the frictional force between the contact surface of the clamping piece 111a and the pipe 300, preventing the pipe 300 from sliding or moving during the pressurization process. The clamping force makes the pipe 300 more stable during the test, improving the stability and accuracy of the test. The protruding strip 111b arranged along the circumferential direction can effectively prevent the pipe 300 from sliding or rotating within the clamping piece 111a, ensuring the fixed position of the pipe 300.
[0041] In some embodiments, please refer to Figure 4 , an annular bracket 122a is provided inside the cylinder body 122. The annular bracket 122a is fixedly connected to the cylinder body 122 and is arranged opposite to the annular clamp 110. The annular bracket 122a can provide additional supporting force to prevent the cylinder body 122 from deforming during the pressurization process. Through the support of the annular bracket 122a, the cylinder body 122 can maintain its original shape, ensuring the accuracy of the internal pressurization test.
[0042] In some embodiments, please refer to Figure 1 , the test assembly 200 includes a pressurizing pipe 210. The pressurizing pipe 210 is fixedly connected to the end cap 121. The inner cavity of the pressurizing pipe 210 is communicated with the inner cavity of the pipe 300. The pressurizing pipe 210 can input water or air into the pipe 300, thereby increasing the pressure inside the pipe 300 and testing the pressure resistance of the pipe 300.
[0043] Workflow: First, put the annular clamp 110 on the pipe 300 to be tested, and insert the cylinder body 122 of the plug 120 into the pipe 300, with the end cap 121 against the end of the pipe 300. Then, adjust the annular clamp 110 sleeve so that the first connection hole 131 on the annular clamp 110 and the second connection hole 132 on the end cap 121 are aligned. Next, pass the first screwing member 133 through the aligned first connection hole 131 and second connection hole 132 and tighten it to ensure the tight connection between the annular clamp 110 and the end cap 121. Finally, ensure that all the screwing members of the connection holes are tightened, and use the pressurizing pipe 210 to conduct a pressurization test, observing and recording the test data.
[0044] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention should be covered by the present invention.
Claims
1. A pipe pressure testing device, characterized in that: include: A sealing assembly, the sealing assembly comprising an annular clamp, a sealing plug and a fastening unit, the sealing plug having an end cover and a cylinder, the cylinder being used to be inserted into the pipe to be tested, the end cover being connected to one end of the cylinder to provide abutment and sealing with the end of the cylinder; the annular clamp is sleeved on the cylinder, and a clamping space for clamping the pipe is formed between the annular clamp and the cylinder; A plurality of the fastening units are arranged along the axial direction of the pipe, and the end cover is connected to the annular clamp through the fastening units to strengthen the seal between the end cover and the tested pipe; A test assembly is arranged on the end cover, and the test assembly can pressurize the inner cavity of the pipe.
2. A pipe pressure testing device according to claim 1, characterized in that: The fastening unit includes a first connecting hole, a second connecting hole and a first screw-on component. The first connecting hole is opened on the annular clamp, the second connecting hole is opened on the end cover, and the first screw-on component is passed through the first connecting hole and the second connecting hole to tighten the end cover axially from the pipe.
3. A pipe pressure testing device according to claim 2, characterized in that: The plurality of second connection holes are equidistantly arranged around the central axis of the end cover, and the plurality of first connection holes are arranged in one-to-one correspondence with the second connection holes.
4. A pipe pressure testing device according to claim 1, characterized in that: The end cover is provided with an annular groove body, which surrounds the cylinder body and can form a sealed space that matches the end of the pipe to be tested.
5. A pipe pressure testing device according to claim 4, characterized in that: The annular groove body is embedded with a sealing ring for abutting against the end of the pipe to be detected.
6. A pipe pressure testing device according to claim 1, characterized in that: The annular clamp includes two half hoops and a second screw-on component. The two half hoops are arranged opposite to each other to form a clamping space for the pipe. The ends of the two half hoops are respectively connected by the second screw-on component to adjust the clamping degree between the two half hoops.
7. A pipe pressure testing device according to claim 6, characterized in that: A clamping piece is provided on one side of the half hoop opposite to the pipe, and the clamping piece is embedded in the half hoop.
8. A pipe pressure testing device according to claim 7, characterized in that: The clamping piece is provided with a protruding strip arranged along the circumference of the pipe.
9. The pipe pressure testing device according to claim 1, characterized in that: An annular bracket is provided inside the cylinder, the annular bracket is fixedly connected to the cylinder and arranged opposite to the annular clamp, and the annular bracket can prevent the cylinder from deforming.
10. The pipe pressure testing device according to claim 1, characterized in that: The test assembly comprises a pressurized tube, which is fixedly connected to the end cover and can input a medium into the pipe for pressurization.