A device for detecting the pressure resistance of a bellows

Abstract

This utility model discloses a corrugated pipe pressure resistance testing device, relating to the technical field of corrugated pipe testing equipment. Its key features include a rotating column and a fixed cylinder rotatably mounted at the bottom of the rotating column. Multiple rotating plates are fixedly mounted on the top of the rotating column, evenly spaced along its circumference. A corrugated support block is fixedly mounted on the upper surface of each rotating plate. A driving assembly is installed inside the fixed cylinder, enabling the rotating column to rotate. A support frame is provided on one side of the fixed cylinder, and a display screen is fixedly mounted on the support frame. A hydraulic cylinder is mounted on the support frame above the corrugated support block. A pressure sensor is fixedly mounted on the movable end of the hydraulic cylinder, and a pressure plate is fixedly mounted on the pressure sensor, enabling continuous testing and improving testing efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of corrugated pipe testing equipment, specifically a corrugated pipe pressure resistance testing device. Background Technology

[0002] Metal corrugated pipes are pipes with a regular wave-like shape. Commonly used metal corrugated pipes include those made of carbon steel and stainless steel, as well as steel-lined plastic and aluminum. They are mainly used for connecting pipes to each other or connecting pipes to equipment in situations requiring a very small bending radius for non-concentric axial transmission, irregular turns, expansion and contraction, or absorbing thermal deformation of the pipeline, or in situations where it is inconvenient to install with fixed elbows.

[0003] During production, corrugated pipes need to undergo pressure resistance tests to assess their quality. However, the testing process involves inspecting each corrugated pipe individually, which is inefficient. To improve testing efficiency, this invention provides a corrugated pipe pressure resistance testing device. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a corrugated pipe pressure resistance testing device.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a corrugated pipe pressure resistance testing device, comprising a rotating column and a fixed cylinder rotatably mounted at the bottom end of the rotating column, wherein multiple rotating plates are fixedly mounted on the top end of the rotating column, the multiple rotating plates are equally spaced along the circumference of the rotating column, and a corrugated support block is fixedly mounted on the upper surface of each rotating plate;

[0006] The fixed cylinder is equipped with a drive assembly that enables the rotating column to rotate.

[0007] A support frame is provided on one side of the fixed cylinder, and a display screen is fixedly installed on the support frame. A hydraulic cylinder is installed on the support frame and above the corrugated support block. A pressure sensor is fixedly installed on the movable end of the hydraulic cylinder, and a pressure plate is fixedly installed on the pressure sensor.

[0008] Preferably, the support frame includes an auxiliary support plate, support legs, a connecting plate, and a top plate. There are four or more support legs, each of which is fixedly connected to the auxiliary support plate. The top plate is fixedly connected to the auxiliary support plate through the connecting plate. The upper surface of the auxiliary support plate and the lower surface of the rotating plate are at the same height.

[0009] Preferably, a movable block is fixedly installed on the fixed end of the hydraulic cylinder, the movable block is slidably installed on the support frame, a threaded rod is rotatably installed on the support frame, one end of the threaded rod passes through the interior of the movable block and is threadedly connected to the movable block, a first motor is fixedly installed on the support frame, and the output end of the first motor is fixedly connected to one end of the threaded rod.

[0010] Preferably, a limiting plate is fixedly installed on the movable block.

[0011] Preferably, the drive assembly includes a second motor, a gear, and a gear ring. The second motor is fixedly installed inside the fixed cylinder, the gear is fixedly installed on the output end of the second motor, and the gear ring is fixedly installed on the rotating column. The gear and the gear ring are in a meshing state.

[0012] Beneficial effects

[0013] Compared with the prior art, this utility model provides a bellows pressure resistance testing device, which has the following beneficial effects:

[0014] Multiple rotating plates are fixedly installed on the top of the rotating column. Corrugated support blocks are fixedly installed on the upper surface of each rotating plate. The drive assembly enables the rotating column to rotate. A hydraulic cylinder is installed on the support frame and above the corrugated support blocks. A pressure sensor is fixedly installed on the movable end of the hydraulic cylinder. A pressure plate is fixedly installed on the pressure sensor, which can continuously perform detection and improve detection efficiency.

[0015] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it according to the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. The specific implementation methods of this utility model are given in detail in the following embodiments and their accompanying drawings. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the support frame in this utility model;

[0019] Figure 3 This is a schematic diagram of the top plate, threaded rod, moving block, and first motor in this utility model.

[0020] Figure 4This is a schematic diagram of the structure of the moving block, hydraulic cylinder, pressure sensor and pressure plate in this utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the transfer plate, corrugated support block, rotating column and drive assembly of this utility model.

[0022] In the diagram: 1. Rotating plate; 2. Corrugated support block; 3. Connecting block; 4. Auxiliary support plate; 5. Support leg; 6. Connecting plate; 7. Top plate; 8. Display screen; 9. Threaded rod; 10. Moving block; 11. First motor; 12. Hydraulic cylinder; 13. Fixed plate; 14. Pressure sensor; 15. Pressure plate; 16. Limiting plate; 17. Fixed cylinder; 18. Rotating column; 19. Second motor; 20. Gear; 21. Gear ring. Detailed Implementation

[0023] The following combination Figures 1 to 5 The principles and features of this utility model are described below. The examples given are for illustrative purposes only and are not intended to limit the scope of this utility model. The utility model is described more specifically in the following paragraphs by way of example with reference to the accompanying drawings. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this utility model.

[0024] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0026] Please combine Figures 1 to 5As shown, this utility model provides a corrugated pipe pressure resistance testing device. The testing device includes a rotating column 18 and a fixed cylinder 17 rotatably installed at the bottom end of the rotating column 18. A connecting block 3 is fixedly installed on the top end of the rotating column 18, and multiple rotating plates 1 are fixedly installed on the connecting block 3. The multiple rotating plates 1 are evenly distributed in the circumferential direction of the rotating column 18. A corrugated support block 2 is fixedly installed on the upper surface of each rotating plate 1. A corrugated placement groove adapted to the corrugated pipe is provided on the corrugated support block 2. The corrugated pipe is placed on the corrugated support block 2 and can be stably supported on the corrugated support block 2.

[0027] The fixed cylinder 17 is equipped with a drive assembly, which includes a second motor 19, a gear 20 and a gear ring 21. The second motor 19 is fixedly installed inside the fixed cylinder 17, the gear 20 is fixedly installed on the output end of the second motor 19, and the gear ring 21 is fixedly installed on the rotating column 18. The gear 20 and the gear ring 21 are kept in a meshing state.

[0028] A support frame is provided on one side of the fixed cylinder 17. A display screen 8 is fixedly installed on the support frame. A hydraulic cylinder 12 is installed on the support frame and above the corrugated support block 2. A pressure sensor 14 is fixedly installed on the movable end of the hydraulic cylinder 12 through a fixed plate 13. A pressure plate 15 is fixedly installed on the pressure sensor 14.

[0029] When performing a pressure test on the bellows, the bellows support block 2 supporting the bellows rotates to be directly below the pressure plate 15. At this time, the movable end of the hydraulic cylinder 12 extends, and the pressure plate 15 presses down on the bellows. The pressure sensed by the pressure sensor 14 is transmitted to the display screen 8 and displayed on the display screen 8. After the test is completed, the drive assembly continues to drive the rotating column 18 to rotate, and the bellows on another bellows support block 2 moves to be directly below the pressure plate 15 to continue the pressure test. During this period, the worker replaces the bellows that have been tested, realizing uninterrupted testing, which helps to improve the testing efficiency of the bellows.

[0030] The support frame includes an auxiliary support plate 4, support legs 5, a connecting plate 6, and a top plate 7. There are four or more support legs 5, and each support leg 5 is fixedly connected to the auxiliary support plate 4. The top plate 7 is fixedly connected to the auxiliary support plate 4 through the connecting plate 6. The upper surface of the auxiliary support plate 4 and the lower surface of the rotating plate 1 are at the same height. During pressure testing, the corrugated support block 2 is subjected to a large pressure. The auxiliary support plate 4 provides auxiliary support for the rotating plate 1, increases the pressure that the corrugated support block 2 can withstand, and avoids the corrugated support block 2 being subjected to excessive pressure, which would affect the service life of the testing device.

[0031] To ensure the accuracy of the inspection, multiple locations on the bellows are often inspected. Manually adjusting the bellows' position is cumbersome. Therefore, a movable block 10 is fixedly installed on the fixed end of the hydraulic cylinder 12. The movable block 10 is slidably mounted on the top plate 7, which has a channel for the movable block 10 to move. A threaded rod 9 is rotatably mounted on the top plate 7, with one end penetrating the interior of the movable block 10 and threadedly connected to it. A first motor 11 is fixedly mounted on the top plate 7, with its output end fixedly connected to one end of the threaded rod 9. When the inspection position needs to be changed, the first motor 11 is started, allowing the movable block 10 to move along the length of the top plate 7. A limiting plate 16 is fixedly installed on the movable block 10, fitting tightly against the lower surface of the top plate 7 to prevent excessive force between the movable block 10 and the threaded rod 9, which could affect their service life.

[0032] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or equivalent variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are considered equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.

Claims

1. A corrugated pipe pressure resistance testing device, characterized in that, It includes a rotating column (18) and a fixed cylinder (17) rotatably installed at the bottom end of the rotating column (18). Multiple rotating plates (1) are fixedly installed on the top end of the rotating column (18). The multiple rotating plates (1) are evenly distributed in the circumferential direction of the rotating column (18). A corrugated support block (2) is fixedly installed on the upper surface of each rotating plate (1). The fixed cylinder (17) is equipped with a drive assembly that enables the rotating column (18) to rotate. A support frame is provided on one side of the fixed cylinder (17), and a display screen (8) is fixedly installed on the support frame. A hydraulic cylinder (12) is installed on the support frame and above the corrugated support block (2). A pressure sensor (14) is fixedly installed on the movable end of the hydraulic cylinder (12), and a pressure plate (15) is fixedly installed on the pressure sensor (14).

2. The bellows pressure resistance testing device according to claim 1, characterized in that: The support frame includes an auxiliary support plate (4), support legs (5), a connecting plate (6), and a top plate (7). There are four or more support legs (5), each of which is fixedly connected to the auxiliary support plate (4). The top plate (7) is fixedly connected to the auxiliary support plate (4) through the connecting plate (6). The upper surface of the auxiliary support plate (4) and the lower surface of the rotating plate (1) are at the same height.

3. The bellows pressure resistance testing device according to claim 1, characterized in that: A movable block (10) is fixedly installed on the fixed end of the hydraulic cylinder (12). The movable block (10) is slidably installed on the support frame. A threaded rod (9) is rotatably installed on the support frame. One end of the threaded rod (9) passes through the interior of the movable block (10) and is threadedly connected to the movable block (10). A first motor (11) is fixedly installed on the support frame. The output end of the first motor (11) is fixedly connected to one end of the threaded rod (9).

4. The bellows pressure resistance testing device according to claim 3, characterized in that: A limiting plate (16) is fixedly installed on the movable block (10).

5. The bellows pressure resistance testing device according to claim 1, characterized in that: The drive assembly includes a second motor (19), a gear (20), and a gear ring (21). The second motor (19) is fixedly installed inside the fixed cylinder (17). The gear (20) is fixedly installed on the output end of the second motor (19). The gear ring (21) is fixedly installed on the rotating column (18). The gear (20) and the gear ring (21) are in a meshing state.

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