Limit displacement testing device for corrugated metal hose
By designing a test device including an upper mounting plate, a lower mounting plate, an upper mounting base, a lower mounting base and a pressurized device, the problem of limit displacement testing of corrugated metal hose is solved, and the accurate measurement of the limit displacement of the hose and the simulation of the gas usage state is realized. It is suitable for hoses of different pipe diameters and lengths.
Patent Information
- Application Number
- CN202422336269.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-25
- Publication Date
- 2025-08-26
- Estimated Expiration
- 2034-09-25
AI Technical Summary
The prior art lacks testing devices and methods that can effectively test the limit displacement of corrugated metal hoses, resulting in gas pipelines being vulnerable to damage under the influence of soil settlement.
A test device including an upper mounting plate, a lower mounting plate, an upper mounting base, a lower mounting base, a pressurized device and a pressurized pipeline is designed. By pressurizing, the gas state is simulated and the upper mounting plate is moved, the corrugated metal hose reaches the limit displacement and its offset is measured.
It realizes accurate testing of the limit displacement of corrugated metal hoses, with simple structure and convenient operation, suitable for hoses of different pipe diameters and lengths, and can simulate the actual use status.
Smart Images
Figure CN223272306U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a testing device, in particular to a device for testing the limit displacement of a corrugated metal hose. Background Art
[0002] Gas inlet pipes serve as the boundary between indoor and outdoor pipelines in gas-using buildings. Buildings typically have rigid foundations, and settlement control is relatively strict. However, after foundation construction is completed, the foundation pit must be backfilled. However, the quality of the backfill soil can be challenging to meet standard requirements. Even if the soil density requirements specified in the construction specifications are met, the backfill will still sink to varying degrees after the rainy season, with some settlements reaching 15-20 cm. The buried section of the gas inlet pipe is typically located within the backfill area, and backfill settlement typically takes two to three years to stabilize. If the outdoor floor has not settled sufficiently during pipeline construction, the gas pipeline can be easily affected by soil settlement during operation, creating localized stress at pipe bends and branch points, potentially damaging the pipeline. To mitigate this, current national standards stipulate that compensatory measures can be implemented for gas inlet pipes when building settlement exceeds 50 mm. However, these measures are limited in their implementation scenarios and application, resulting in frequent damage to gas pipelines caused by settlement. The industry is exploring more effective compensation measures. Currently, the compensation measure of using corrugated metal hoses installed on the inlet pipes where gas pipelines enter homes is in the exploratory stage. Before installing the corrugated metal hoses on the inlet pipes where gas pipelines enter homes, their ultimate displacement needs to be tested. Currently, there are no test equipment and test methods that can perform ultimate displacement tests on corrugated metal hoses. Utility Model Content
[0003] The technical problem to be solved by the utility model is to provide a corrugated metal hose limit displacement testing device which has a simple structure, is easy to operate and can perform limit displacement testing of the corrugated metal hose.
[0004] In order to solve the above technical problems, this application provides the following technical solutions:
[0005] The lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of
[0006] Furthermore, it also includes a screw, and the upper mounting plate includes a bottom plate and a side plate connected to each other, and the bottom plate and the side plate form an L shape. One end of the screw passes through the side plate and is rotatably connected to one of the vertical plates of the mounting frame. The screw is threadedly connected to the side plate, and mounting holes are provided on both vertical plates of the mounting frame. The bottom plate passes through the two mounting holes, and the screw is rotated to move the upper mounting plate to one side relative to the mounting frame.
[0007] Furthermore, it also includes a screw, and the upper mounting plate includes a bottom plate and a side plate connected to each other, and the bottom plate and the side plate form an L shape. One end of the screw passes through the side plate and is rotatably connected to the mounting frame. The screw and the side plate are threadedly connected, and a mounting hole is provided on the mounting frame. The bottom plate passes through the mounting hole, and the screw is rotated to move the upper mounting plate to one side relative to the mounting frame.
[0008] Furthermore, a handwheel is connected to the screw rod.
[0009] Furthermore, a scale is provided on the bottom plate.
[0010] Furthermore, the upper mounting seat includes an upper fixed flange and an upper flange conversion joint, the upper fixed flange is connected to the upper mounting plate, the upper flange conversion joint is connected to the upper fixed flange, and the upper flange conversion joint is used to connect one end of the corrugated metal hose to be tested, the lower mounting seat includes a lower fixed flange and a lower flange conversion joint, the lower fixed flange is connected to the lower mounting plate, the lower flange conversion joint is connected to the lower fixed flange, and the lower flange conversion joint is used to connect the other end of the corrugated metal hose to be tested.
[0011] Furthermore, it also includes an adjusting stud, which is provided on the lower flange conversion joint and is used to adjust the height of the lower flange conversion joint.
[0012] Furthermore, a pressure gauge is provided on the pressurized pipeline.
[0013] Compared with the prior art, the present invention has at least the following advantages:
[0014] The utility model discloses a device for testing the limit displacement of a corrugated metal hose. The device comprises an upper mounting plate, a lower mounting plate, an upper mounting seat, a lower mounting seat and a pressurizing device. Therefore, the corrugated metal hose to be tested can be pressurized to simulate an actual use state of being filled with gas, and the corrugated metal hose to be tested can be made to reach the displacement limit by moving the upper mounting plate. Thus, the limit displacement test of the corrugated metal hose can be performed, and the device has a simple structure and is easy to operate.
[0015] The following is a further description of the limit displacement testing device for the corrugated metal hose of the present invention in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a structural schematic diagram of the utility model of the corrugated metal hose limit displacement testing device. DETAILED DESCRIPTION
[0017] like Figure 1As shown, the utility model is a device for testing the limit displacement of a corrugated metal hose, comprising an upper mounting plate 11, a lower mounting plate 12, an upper mounting seat 13, a lower mounting seat 14, a pressurizing device 15, and a pressurizing pipeline 16. The upper mounting seat 13 is connected to the upper mounting plate 11, and the lower mounting seat 14 is connected to the lower mounting plate 12. The upper mounting plate 11 and the lower mounting plate 12 are parallel to each other. The upper mounting plate 11 is suitable for moving to one side in a horizontal plane. The upper mounting seat 13 and the lower mounting seat 14 are respectively used to connect the two ends of the corrugated metal hose 20 to be tested. A through hole is provided on the lower mounting seat 14. One end of the pressurizing pipeline 16 is connected to the pressurizing device 15, and the other end of the pressurizing pipeline 16 passes through the through hole to pass into the corrugated metal hose 20 to be tested to pressurize the corrugated metal hose 20 to be tested. Specifically, the pressurizing device 15 is an air compressor. When the utility model is used, the two ends of the corrugated metal hose 20 to be tested are respectively connected to the upper mounting seat 13 and the lower mounting seat 14, and the corrugated metal hose 20 to be tested is kept in a vertical state, and the pressurizing device 15 is turned on. The pressurizing device 15 pressurizes the corrugated metal hose 20 to be tested through the pressurizing pipeline 16 to simulate the actual use state of the corrugated metal hose 20 to be tested being filled with gas. The upper mounting plate 11 is moved to one side, driving one end of the corrugated metal hose 20 to be tested to deflect to one side. When the metal wire covering the outer surface of the corrugated metal hose 20 to be tested is broken, the horizontal offset of the upper mounting seat 13 relative to the lower mounting seat 14 is measured, that is, the limit displacement of the corrugated metal hose 20 to be tested. The utility model relates to a limit displacement testing device for a corrugated metal hose. As the device comprises an upper mounting plate 11, a lower mounting plate 12, an upper mounting seat 13, a lower mounting seat 14, and a pressurizing device 15, it is possible to pressurize the inside of a corrugated metal hose 20 to be tested to simulate an actual use state of the hose being filled with gas, and by moving the upper mounting plate 11, the corrugated metal hose 20 to be tested reaches its displacement limit. Thus, a limit displacement test of the corrugated metal hose can be performed, and the device has a simple structure and is easy to operate.
[0018] Optionally, a mounting frame 17 is further included, which includes a top plate and two vertical plates. The top plate and the two vertical plates form a door shape. The upper mounting plate 11 is connected to the two vertical plates. The upper mounting plate 11 is close to the top of the two vertical plates. The upper mounting plate 11 is suitable for moving to one side in a horizontal plane relative to the two vertical plates. The lower mounting plate 12 is clamped between the bottoms of the two vertical plates.
[0019] Optionally, a screw 18 is further included. The upper mounting plate 11 includes a bottom plate and side plates connected to each other, forming an L-shape. One end of the screw 18 passes through the side plate and is rotatably connected to a vertical plate of the mounting frame 17. The screw 18 is threadedly connected to the side plate. Both vertical plates of the mounting frame 17 are provided with mounting holes, and the bottom plate passes through the two mounting holes. Rotating the screw 18 causes the upper mounting plate 11 to move to one side relative to the mounting frame 17. By rotating the screw 18 to move the upper mounting plate 11, the displacement of the upper mounting plate 11 can be precisely controlled.
[0020] Optionally, a hand wheel 181 is connected to the screw rod 18, and the screw rod 18 can be operated by the hand wheel 181, which makes the operation more convenient.
[0021] Optionally, a scale is provided on the bottom plate to facilitate measurement of the offset of the upper mounting plate 11 .
[0022] Optionally, the upper mounting seat 13 includes an upper fixed flange 131 and an upper flange conversion joint 132, wherein the upper fixed flange 131 is connected to the upper mounting plate 11, and the upper flange conversion joint 132 is connected to the upper fixed flange 131. The upper flange conversion joint 132 is used to connect one end of the corrugated metal hose 20 to be tested. The lower mounting seat 14 includes a lower fixed flange 141 and a lower flange conversion joint 142. The lower fixed flange 141 is connected to the lower mounting plate 12, and the lower flange conversion joint 142 is connected to the lower fixed flange 141. The lower flange conversion joint 142 is used to connect the other end of the corrugated metal hose 20 to be tested. By connecting the corrugated metal hose 20 to be tested through the upper flange conversion joint 132 and the lower flange conversion joint 142, the present invention enables the corrugated metal hose limit displacement testing device to test the limit displacement of corrugated metal hoses 20 to be tested of different diameters.
[0023] Optionally, it also includes an adjusting stud 19, which is arranged on the lower flange conversion joint 142. The adjusting stud 19 is used to adjust the height of the lower flange conversion joint 142. By adjusting the height of the lower flange conversion joint 142, the utility model corrugated metal hose limit displacement testing device can test the limit displacement of corrugated metal hoses 20 to be tested of different lengths.
[0024] Optionally, a pressure gauge 161 is provided on the pressurized pipeline 16 , and the pressure on the pressurized pipeline 16 is measured by the pressure gauge 161 , so that the pressure in the corrugated metal hose 20 to be tested can be controlled more accurately.
[0025] The method for testing the ultimate displacement of the corrugated metal hose using the ultimate displacement testing device comprises the following steps:
[0026] Connect the two ends of the corrugated metal hose 20 to be tested to the upper mounting seat 13 and the lower mounting seat 14 respectively, and keep the corrugated metal hose 20 to be tested in a vertical state.
[0027] Pressurize the inside of the corrugated metal hose 20 to be tested to simulate the actual use state of the corrugated metal hose 20 to be tested being filled with gas.
[0028] Move the upper mounting plate 11 to one side, causing one end of the corrugated metal hose 20 to be tested to deviate to one side. When the metal wire covering the corrugated metal hose 20 to be tested breaks, measure the horizontal offset of the upper mounting seat 13 relative to the lower mounting seat 14, that is, the limit displacement of the corrugated metal hose 20 to be tested.
[0029] The embodiments described above are merely descriptions of preferred implementation methods of the present invention and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the scope of protection determined by the claims of the present invention.
Claims
1. A device for testing the ultimate displacement of a corrugated metal hose, characterized in that: The utility model comprises an upper mounting plate (11), a lower mounting plate (12), an upper mounting seat (13), a lower mounting seat (14), a pressurizing device (15), a pressurizing pipeline (16), and a mounting frame (17). The mounting frame (17) comprises a top plate and two vertical plates. The top plate and the two vertical plates form a door shape. The upper mounting plate (11) is connected to the two vertical plates. The upper mounting plate (11) is close to the top of the two vertical plates. The upper mounting plate (11) is suitable for moving to one side in a horizontal plane relative to the two vertical plates. The lower mounting plate (12) is clamped between the bottoms of the two vertical plates. The upper mounting plate (11) and the vertical plates are connected. The lower mounting plates (12) are parallel to each other, the upper mounting seat (13) is connected to the upper mounting plate (11), and the lower mounting seat (14) is connected to the lower mounting plate (12). The upper mounting seat (13) and the lower mounting seat (14) are respectively used to connect the two ends of the corrugated metal hose (20) to be tested. A through hole is provided on the lower mounting seat (14). One end of the pressurizing pipeline (16) is connected to the pressurizing device (15), and the other end of the pressurizing pipeline (16) passes through the through hole and is used to pass into the corrugated metal hose (20) to be tested to pressurize the corrugated metal hose (20) to be tested.
2. The device for testing the limit displacement of a corrugated metal hose according to claim 1, characterized in that: The invention also includes a screw rod (18), the upper mounting plate (11) includes a bottom plate and a side plate connected to each other, the bottom plate and the side plate forming an L shape, one end of the screw rod (18) passes through the side plate and is rotatably connected to one of the vertical plates of the mounting frame (17), the screw rod (18) is threadedly connected to the side plate, the two vertical plates of the mounting frame (17) are both provided with mounting holes, the bottom plate passes through the two mounting holes, and the screw rod (18) is rotated, so that the upper mounting plate (11) moves to one side relative to the mounting frame (17).
3. The device for testing the limit displacement of a corrugated metal hose according to claim 2, characterized in that: The screw rod (18) is connected to a hand wheel (181).
4. The device for testing the limit displacement of a corrugated metal hose according to claim 3, characterized in that: The bottom plate is provided with a scale.
5. The device for testing the limit displacement of a corrugated metal hose according to claim 4, characterized in that: The upper mounting seat (13) includes an upper fixed flange (131) and an upper flange conversion joint (132), wherein the upper fixed flange (131) is connected to the upper mounting plate (11), and the upper flange conversion joint (132) is connected to the upper fixed flange (131), and the upper flange conversion joint (132) is used to connect one end of the corrugated metal hose (20) to be tested. The lower mounting seat (14) includes a lower fixed flange (141) and a lower flange conversion joint (142), wherein the lower fixed flange (141) is connected to the lower mounting plate (12), and the lower flange conversion joint (142) is connected to the lower fixed flange (141), and the lower flange conversion joint (142) is used to connect the other end of the corrugated metal hose (20) to be tested.
6. The device for testing the limit displacement of a corrugated metal hose according to claim 5, characterized in that: It also includes an adjusting stud (19), which is arranged on the lower flange conversion joint (142) and is used to adjust the height of the lower flange conversion joint (142).
7. The device for testing the limit displacement of a corrugated metal hose according to claim 6, characterized in that: The pressurizing pipeline (16) is provided with a pressure gauge (161).