Radial deformation and radial force testing device

Abstract

The utility model discloses a radial deformation and radial force testing device, which comprises a first flange plate and a second flange plate which are arranged at an interval, and a pressure providing mechanism arranged between the first flange plate and the second flange plate, an injection port is formed in the first flange plate, and a pressure sensor is arranged on the second flange plate; the two ends of the pipeline are connected with the first flange plate and the second flange plate through pipeline flanges at the two ends of the pipeline respectively, the injection port is communicated with the interior of the pipeline, and the detection end of the pressure sensor stretches into the interior of the pipeline. According to the utility model, fluid is injected into the pipeline through the injection port, so that the pipeline can be tested under the condition of internal pressure, the test condition of the pipeline in the use process is simulated, the test data is more diversified, and the quality condition of the pipeline can be better analyzed.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline deformation testing, and specifically refers to a device for testing radial deformation and radial force. Background Art

[0002] During the production process of corrugated pipes, plastic pipes, etc., deformation testing is required to determine whether their strength meets the requirements. The patented technology with the application number CN202111167908.8 discloses a pipeline deformation monitoring and testing device. This technology applies radial force to the pipeline by pressing a displacement rod to test the deformation of the pipeline. However, this technology cannot test the deformation of the pipeline during use, that is, it cannot test the deformation of the pipeline under pressure, and cannot meet the needs of diversified test data. Content of the Utility Model

[0003] To solve the above problems, the present application provides a device for testing radial deformation and radial force, which can test the deformation of the pipeline under pressure.

[0004] The purpose of the utility model is achieved by the following technical solutions: A device for testing radial deformation and radial force includes a first flange and a second flange arranged at intervals, and a pressure providing mechanism arranged between the first flange and the second flange; an injection port is arranged on the first flange, and a pressure sensor is arranged on the second flange; both ends of the pipeline are respectively connected to the first flange and the second flange through the pipeline flanges at both ends thereof. The injection port is communicated with the inside of the pipeline, and the detection end of the pressure sensor extends into the inside of the pipeline.

[0005] Further, sealing gaskets are arranged on the opposite sides of the first flange and the second flange, and a seal is formed between the sealing gaskets and the pipeline flanges.

[0006] An annular extension is arranged on the side of the sealing gasket facing the pipeline, and the end of the pipeline is sleeved outside the annular extension, so that an annular sealing surface is formed between the annular extension and the inner wall of the pipeline.

[0007] The device for testing radial deformation and radial force further includes a base; a slide rail is arranged on the base, and both the first flange and the second flange are slidably installed on the slide rail through supports, so that the first flange and the second flange can approach or move away from each other.

[0008] A slot extending along the axial direction of the pipeline is arranged on the base, and a plug is arranged on the support and inserted into the slot.

[0009] A pressure relief port is arranged on the first flange and / or the second flange, and a plug is arranged on the pressure relief port.

[0010] The pressure providing mechanism includes a sliding seat, a mounting seat disposed on the sliding seat, a pressing block connected to the mounting seat through a tensile pressure sensor, a bracket disposed on the sliding seat, and a laser displacement sensor mounted on the bracket; a rocker is provided on the sliding seat, and the lower end of the mounting seat is threadedly connected to the rocker so that the rocker can drive the mounting seat to move back and forth; a through hole corresponding to the laser displacement sensor is provided on the mounting seat so that the laser displacement sensor can detect the position of the pressing block.

[0011] The extrusion surface of the pressing block is arc-shaped.

[0012] Compared with the prior art, the present application has the following beneficial effects: By injecting fluid into the pipeline through the injection port, the pipeline can be tested under internal pressure, simulating the test conditions during the use of the pipeline, making the test data more diversified and facilitating better analysis of the pipeline quality.

[0013] Some additional features of the present application can be described below. Through the examination of the following description and the corresponding drawings, or the understanding of the production or operation of the embodiments, some additional features of the present application are obvious to those skilled in the art. The features disclosed in the present application can be realized and achieved through the practice or use of various methods, means and combinations of the specific embodiments described below. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings described herein are used to provide a further understanding of the present application and form a part of the present application. The schematic embodiments of the present application and their descriptions are used to explain the present application and do not constitute a limitation to the present application. In each figure, the same reference numerals represent the same components. Among them,

[0015] Figure 1 is a top view of the present utility model.

[0016] Figure 2 is a sectional view of the pipeline connected to the first flange and the second flange.

[0017] Figure 3 is a structural diagram of the gasket of the present utility model.

[0018] Figure 4 is a sectional view of the pressure providing mechanism of the present utility model.

[0019] The reference numerals in the above-mentioned drawings are as follows: 1 - pipeline, 2 - pipeline flange, 3 - first flange, 4 - slot, 5 - bolt, 6 - support, 7 - injection port, 8 - sliding seat, 9 - gasket, 10 - second flange, 11 - pressure sensor, 12 - slide rail, 13 - pressing block, 14 - tension and compression sensor, 15 - mounting seat, 16 - bracket, 17 - laser displacement sensor, 18 - rocker, 19 - pressure relief port, 20 - plug, 21 - base, 22 - annular extension, 23 - perforation. Detailed implementation manners

[0020] To enable those skilled in the art to better understand the solution of this application, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments.

[0021] Embodiment

[0022] As Figure 1 shown, this embodiment discloses a radial deformation and radial force testing device, which is used to test the relationship between the radial deformation of a pipeline and the radial pressure it receives. The radial deformation and radial force testing device includes a first flange 3, a second flange 10, and a pressure providing mechanism; wherein, the first flange 3 and the second flange 10 are installed at intervals on a base 21. When setting, a slide rail 12 is provided on the base 21, and supports 6 are provided at the lower ends of both the first flange 3 and the second flange 10. A slider that can cooperate with the slide rail 12 is provided at the lower end of the support 6. Both the first flange 3 and the second flange 10 are installed on the slide rail 12 through the supports 6. Therefore, the first flange 3 and the second flange 10 can slide along the slide rail 12, so as to adjust the distance between the first flange 3 and the second flange 10. Specifically, when setting, locking bolts can be provided on the support 6. When the locking bolts are tightened, the locking bolts can press against the slide rail 12, thereby fixing the support 6 on the slide rail 12. The pressure providing mechanism is also installed on the base 21 and is located between the first flange 3 and the second flange 10.

[0023] In addition, an injection port 7 is provided on the first flange 3, and a pressure sensor 11 is provided on the second flange 10. During the test, the positions of the first flange 3 and the second flange 10 are adjusted, and both ends of the pipeline 1 to be tested are respectively connected to the first flange 3 and the second flange 10 through the pipeline flanges 2 at both ends thereof, so as to fix the pipeline 1, as Figure 1 、 2 shown.

[0024] After the pipeline is installed, the injection port 7 is in communication with the inside of the pipeline 1, and the detection end of the pressure sensor 11 extends into the inside of the pipeline 1. Before the test starts, an external device injects a fluid, such as water or gas, into the pipeline 1 through the injection port 7 to make the pipeline 1 reach the internal pressure during use, so that the pipeline 1 can be tested under pressure. The pressure sensor 11 is used to detect the pressure value inside the pipeline 1 to facilitate the control of the fluid injection volume. During installation, a seal needs to be provided between the pressure sensor 11 and the second flange 10.

[0025] In addition, a pressure relief port 19 is provided on the first flange 3 and / or the second flange 10, and a plug 20 is provided on the pressure relief port 19. The plug 20 can be thread-sealed to the pressure relief port 19, and a seal can also be provided between the two. After the test is completed, the internal pressure of the pipeline 1 can be relieved through the pressure relief port 19.

[0026] To achieve better sealing performance, sealing gaskets 9 are provided on the opposite sides of the first flange 3 and the second flange 10, and a seal is formed between the sealing gaskets 9 and the pipeline flange 2 of the pipeline 1. In addition, as Figure 3 shown, the side of the sealing gasket 9 facing the pipeline 1 is provided with an annular extension 22. During installation, the end of the pipeline 1 is sleeved outside the annular extension 22. In this way, a seal is formed between the end face of the pipeline 1 and the sealing gasket 9, and the annular extension 22 forms a second annular sealing surface with the inner wall of the pipeline 1. The two seals can improve the sealing performance.

[0027] As Figure 1 shown, a slot 4 is also provided on the base 21, and the slot 4 extends along the axial direction of the pipeline 1; correspondingly, a bolt 5 is provided on the support 6, and the lower end of the bolt 5 is inserted into the slot 4. Through the cooperation of the slot 4 and the bolt 5, when the pressure providing mechanism applies a radial force to the pipeline 1, the base 21 will not be pushed.

[0028] As Figure 4 shown, the pressure providing mechanism includes a sliding seat 8, a mounting seat 15 provided on the sliding seat 8, a pressing block 13 connected to the mounting seat 15 through a tension and compression sensor 14, a bracket 16 provided on the sliding seat 8, and a laser displacement sensor 17 mounted on the bracket 16. A rocker 18 is provided on the sliding seat 8, and a handle is provided at the end of the rocker 18. The lower end of the mounting seat 15 is thread-connected to the rocker 18. When the handle is shaken, the rocker 18 rotates, thereby driving the mounting seat 15 to move back and forth so that the pressing block 13 can squeeze the pipeline 1 and apply a radial pressure to the pipeline 1. When the pressing block 13 squeezes the pipeline 1, the pressure value can be obtained through the tension and compression sensor 14.

[0029] In addition, a perforation 23 corresponding to the laser displacement sensor 17 is provided on the mounting base 15, and the signal of the laser displacement sensor 17 can pass through the perforation 23 to detect the position of the pressing block 13. During the test, first push the pressing block 13 forward so that the pressing block 13 just touches the pipeline 1. At this time, set the values of the laser displacement sensor 17 and the tensile and compressive force sensor 14 to zero. Then push the pressing block 13 forward to make the pressing block 13 squeeze the pipeline, record the position information of the pressing block 13 detected by the laser displacement sensor 17, and this information is the deformation information of the pipeline 1. At the same time, record the pressure value of the tensile and compressive force sensor 14. The relationship between the radial deformation of the pipeline and the radial pressure it receives can be obtained through the pressure value and the position information.

[0030] As another implementation manner, the extrusion surface of the pressing block 13 is arc-shaped to match the shape of the pipeline 1.

[0031] In this embodiment, fluid is injected into the pipeline 1 through the injection port 7, enabling the pipeline 1 to be tested under internal pressure, simulating the test situation during the use of the pipeline, making the test data more diversified, and facilitating better analysis of the quality of the pipeline.

[0032] It should be noted that all the features disclosed in this specification, or all the steps in the disclosed methods or processes, except for mutually exclusive features and / or steps, can be combined in any way.

[0033] In addition, the above specific embodiments are exemplary. Those skilled in the art can come up with various solutions inspired by the disclosed content of the present invention, and these solutions also fall within the scope of the disclosure of the present invention and within the protection scope of the present invention. Those skilled in the art should understand that the description of the present invention and its accompanying drawings are illustrative and do not constitute a limitation on the claims. The protection scope of the present invention is defined by the claims and their equivalents.

Claims

1. Radial deformation and radial force testing device, characterized in that: The invention comprises a first flange (3) and a second flange (10) which are arranged at an interval, and a pressure providing mechanism arranged between the first flange (3) and the second flange (10); the first flange (3) is provided with an injection port (7), and the second flange (10) is provided with a pressure sensor (11); the two ends of a pipeline (1) are respectively connected to the first flange (3) and the second flange (10) through pipeline flanges (2) at the two ends, the injection port (7) is communicated with the interior of the pipeline (1), and the detection end of the pressure sensor (11) extends into the interior of the pipeline (1).

2. The radial deformation and radial force testing device according to claim 1, characterized in that: Sealing gaskets (9) are provided on opposite sides of the first flange (3) and the second flange (10), and a seal is formed between the sealing gasket (9) and the pipeline flange (2) of the pipeline (1).

3. The radial deformation and radial force testing device according to claim 2, characterized in that: The sealing gasket (9) is provided with an annular extension portion (22) on the side facing the pipe (1), and the end of the pipe (1) is sleeved on the outside of the annular extension portion (22) so that the annular extension portion (22) and the inner wall of the pipe (1) form an annular sealing surface.

4. The radial deformation and radial force testing device according to claim 1, characterized in that: It also includes a base (21); a slide rail (12) is arranged on the base (21); the first flange (3) and the second flange (10) are slidably mounted on the slide rail (12) via a support (6), so that the first flange (3) and the second flange (10) can move closer to or farther away from each other.

5. The radial deformation and radial force testing device according to claim 4, characterized in that: The base (21) is provided with a slot (4) extending in the axial direction of the pipe (1), and the support (6) is provided with a plug (5) inserted into the slot (4).

6. The radial deformation and radial force testing device according to claim 1, characterized in that: The first flange (3) and / or the second flange (10) is provided with a pressure relief port (19), and the pressure relief port (19) is provided with a plug (20).

7. The radial deformation and radial force testing device according to claim 1, characterized in that: The pressure providing mechanism comprises a slide (8), a mounting seat (15) arranged on the slide (8), a pressure block (13) connected to the mounting seat (15) via a tension pressure sensor (14), a bracket (16) arranged on the slide (8), and a laser displacement sensor (17) mounted on the bracket (16); a rocker (18) is arranged on the slide (8), and the lower end of the mounting seat (15) is threadedly connected to the rocker (18), so that the rocker (18) can drive the mounting seat (15) to move forward and backward; a through hole (23) is arranged on the mounting seat (15) at a position corresponding to the laser displacement sensor (17), so that the laser displacement sensor (17) can detect the position of the pressure block (13).

8. The radial deformation and radial force testing device according to claim 7, characterized in that: The pressing surface of the pressing block (13) is arc-shaped.

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