Centering device for pipeline pressure detection

Abstract

The utility model relates to the technical field of centering devices, and provides a centering device for pipeline pressure detection, which comprises a moving assembly, two moving frames, two carrying plates and a pipe lifting assembly, the moving assembly is arranged on the side surface of a working table, the two moving frames are both arranged on the moving assembly, the two carrying plates are arranged on the moving assembly, and the pipe lifting assembly is arranged on the working table. The two carrying plates make contact with the top ends of the two moving frames correspondingly, semicircular grooves consistent with the containing plates are formed in the carrying plates, the moving assemblies are used for moving the carrying plates to the containing plates, and the two pipe lifting assemblies are arranged on the side faces of the two moving frames correspondingly. And the pipeline is lifted and placed in the semicircular groove of the placing plate. By means of the technical scheme, the problem that in the prior art, when a pipeline is centered, the pipeline needs to be lifted by a certain height to be placed on a connecting disc, and consequently labor is wasted is solved.

Description

Technical Field

[0001] This utility model relates to the field of centering device technology, specifically to a centering device for pipeline pressure detection. Background Technology

[0002] Pressure pipelines are tubular devices used to transport gases or liquids under pressure. Since pipelines need to withstand certain pressure during use, pressure tests need to be conducted on various parts of the pipeline after it is manufactured to verify whether the pipeline is up to standard. During pressure testing, the pipeline needs to be centered to ensure that the pipeline axis coincides with the axis of the testing equipment, so that the pipeline is subjected to uniform force during pressure testing.

[0003] A search revealed a pipeline pressure testing centering device proposed in announcement number CN222212468U. This device clamps and fixes the pipeline by placing the pipeline in two connecting plates, and then rotating the positioning block in the connecting plates to move it in the center, thereby achieving centering and then testing the pressure of the pipeline.

[0004] However, since the connecting plate of the device is located on the mounting base, it is a certain distance from the ground. When placing the pipe into the connecting plate, the pipe needs to be raised a certain distance so that it can be placed into the connecting plate. Then, subsequent clamping, fixing and testing can be carried out. Furthermore, when placing the pipe into the connecting plate of the device, the pipe needs to pass through the circular through hole of the connecting plate. It is quite laborious to place the pipe through the hole while raising it. Utility Model Content

[0005] This invention proposes a centering device for pipeline pressure testing, which solves the problem in the prior art that when centering a pipeline, it is necessary to raise the pipeline to a certain height and place it on the connecting plate, which is quite laborious.

[0006] The technical solution of this utility model is as follows:

[0007] A centering device for pipeline pressure testing includes a workbench with two placement plates fixedly mounted on its top. Each placement plate has a semi-circular groove at its top. The device also includes a moving assembly, a moving frame, a transport plate, and a pipe-lifting assembly. The moving assembly is located on the side of the workbench. Two moving frames are mounted on the moving assembly. Two transport plates are also mounted, each contacting the top of one of the moving frames. Each transport plate has a semi-circular groove corresponding to the placement plate. The moving assembly moves the transport plate to the placement plate. Two pipe-lifting assemblies are located on the sides of the two moving frames and are used to lift the pipe and place it into the semi-circular groove of the placement plate.

[0008] Furthermore, the moving assembly includes a mounting plate, a reciprocating screw, a screw nut, a motor, and a sliding assembly. There are two mounting plates, which are fixedly mounted on the same side of the worktable. The reciprocating screw is rotatably mounted between the two mounting plates. The motor is mounted on the mounting plate, and its output end is coaxially connected to the reciprocating screw. The screw nut is threaded onto the reciprocating screw. The sliding assembly is located at the other end of the worktable.

[0009] Furthermore, the sliding assembly includes a second mounting plate, a slide rod, a slider, and a connecting plate. Two second mounting plates are provided, and both second mounting plates are fixedly installed at the other end of the worktable. The slide rod is fixedly installed between the two second mounting plates. The slider is slidably installed on the slide rod. The two movable frames are respectively fixedly installed on the top of the lead screw nut and the top of the slider. The connecting plate is fixedly installed on the side of the slider and the lead screw nut, and the connecting plate is located below the worktable.

[0010] Furthermore, the pipe lifting assembly includes a placement frame, an electric cylinder, and a lifting frame. There are two placement frames, which are respectively fixedly installed on the sides of the two movable frames. There are two electric cylinders, which are respectively installed on the two placement frames. The output ends of the two electric cylinders are fixedly installed on the lifting frame, and a transport plate is fixedly installed on the sides of the two lifting frames.

[0011] Furthermore, it also includes a fixing component, which includes: a slide rail, a sliding frame, a second electric cylinder, a support rod, a clamping ring, and a limiting component. Slide rails are fixedly installed on the sides of both placement plates. The sliding frame is slidably installed on the two slide rails. The second electric cylinder is installed on the sliding frame. The support rod is fixedly connected to the output end of the second electric cylinder, and the clamping ring is fixedly installed on the bottom end of the support rod. There are two fixing components, and the two limiting components are respectively installed on the two slide rails.

[0012] Furthermore, the limiting component includes a fixing plate and bolts. The fixing plate is fixedly installed on the slide rail. The side of the fixing plate has threaded holes, and both ends of the sliding frame have threaded holes. The bolts are threadedly installed in the threaded holes.

[0013] Furthermore, the height of the placement plate is higher than the height of the transport plate.

[0014] The working principle and beneficial effects of this utility model are as follows:

[0015] 1. In this utility model, when inspecting a pipeline, the pipeline can first be moved to the lifting frame. Since the height of the moving plate is lower than the height of the placement frame, the lifting height is lower than that of the placement frame during transportation, which saves more effort.

[0016] 2. In this utility model, after the pipe is placed on the transport plate, the transport plate can be moved and raised above the placement rack by the moving component and the pipe lifting component. Then the pipe is placed in the semi-circular groove of the placement rack for subsequent testing, so there is no need for manual handling, which is more labor-saving.

[0017] In summary, this device, through the cooperation of the moving components, moving frame, transport plate, and pipe lifting components, can center the pipeline without the need for manual handling of higher parts, thus saving labor. Attached Figure Description

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram showing the structure of the workbench, movable frame, and movable components of this utility model.

[0021] Figure 3 This is a schematic diagram of the structure of the pipe lifting assembly and the transport plate of this utility model.

[0022] Figure 4 This is a schematic diagram of the structure of the fixing component and the placement plate of this utility model.

[0023] In the diagram: 1. Workbench; 2. Placement plate; 3. Moving frame; 4. Transport plate; 5. Mounting plate one; 6. Reciprocating screw; 7. Screw nut; 8. Motor one; 9. Mounting plate two; 10. Slide rod; 11. Slider; 12. Connecting plate; 13. Placement frame; 14. Electric cylinder one; 15. Lifting frame; 16. Slide rail; 17. Sliding frame; 18. Electric cylinder two; 19. Support rod; 20. Clamping ring; 21. Fixing plate; 22. Bolt. Detailed Implementation

[0024] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0025] Example 1, as Figures 1-4 As shown in the figure, this embodiment proposes a centering device for pipeline pressure testing, including a workbench 1. Two placement plates 2 are fixedly installed on the top of the workbench 1, and the top of the placement plates 2 is provided with a semi-circular groove. It should be noted that the two placement plates 2 are placed horizontally on the workbench 1. When the pipeline is placed on the two placement plates 2, the pipeline is in a horizontal state, and the semi-circular groove of the placement plate 2 fits against the outer wall of the pipeline to be tested. Because the height of the placement plate 2 is higher than the height of the lifting frame 15, the pipeline needs to be placed on the higher placement plate 2 during testing. Then, water is introduced into the pipeline to conduct the pressure test. The pipeline needs to be placed at a higher position because it is convenient to drain water after the test, preventing water accumulation in the pipe. Moreover, the higher placement makes it easier for the staff to observe during the test.

[0026] It also includes a moving component, a moving frame 3, a transport plate 4, and a pipe lifting component. The moving component is located on the side of the workbench 1. There are two moving frames 3, both of which are mounted on the moving component. There are two transport plates 4, each of which contacts the top of one of the two moving frames 3. The transport plates 4 have semi-circular grooves that correspond to the placement plate 2. The moving component is used to move the transport plates 4 to the placement plate 2. There are two pipe lifting components, each of which is located on the side of one of the two moving frames 3. They are used to lift the pipe and place it in the semi-circular groove of the placement plate 2.

[0027] During testing, the pipes are manually placed on two transport plates 4. Because the transport plates 4 are relatively low, placement is easier. First, the lifting assembly is used to raise the pipes to a height higher than the placement plate 2. Figure 3 As shown, the pipe lifting assembly includes a placement frame 13, an electric cylinder 14, and a lifting frame 15. There are two placement frames 13, which are fixedly installed on the sides of two movable frames 3 respectively. There are two electric cylinders 14, which are fixedly installed on the two placement frames 13 respectively. The output ends of the two electric cylinders 14 are fixedly installed on the lifting frame 15, and the sides of the two lifting frames 15 are fixedly installed with transport plates 4. Specifically, when the electric cylinder 14 is started, the output end of the electric cylinder 14 drives the lifting frame 15 to move upward, and the lifting frame 15 drives the transport plate 4 and the pipe to move upward to a height higher than the placement plate 2.

[0028] After raising, move it to directly above the placement plate 2 using the moving component, as shown. Figure 2As shown, the moving assembly includes a mounting plate 5, a reciprocating screw 6, a screw nut 7, a motor 8, and a sliding assembly. Two mounting plates 5 are provided, fixedly mounted on the same side of the worktable 1. The reciprocating screw 6 is rotatably mounted between the two mounting plates 5. The motor 8 is mounted on the mounting plate, and its output end is coaxially connected to the reciprocating screw 6. The screw nut 7 is threaded onto the reciprocating screw 6. The sliding assembly is located at the other end of the worktable 1. The sliding assembly includes a mounting plate 9, a slide rod 10, a slider 11, and a connecting plate 12. Two mounting plates 9 are provided, both fixedly mounted on the other end of the worktable 1. The slide rod 10 is fixedly mounted between the two mounting plates 9. The slider 11 is slidably mounted on the slide rod 10. Two moving frames 3 are fixedly mounted on the top of the screw nut 7 and the top of the slider 11, respectively. The connecting plate 12 is fixedly mounted on the sides of the slider 11 and the screw nut 7, and is located below the worktable 1.

[0029] Specifically, motor 8 is started, and the output of motor 8 drives the reciprocating screw 6 to rotate between the two mounting plates 5. It should be noted that the reciprocating screw 6 and the screw nut 7 are driven by a rolling thread, which is a known technology. Then, the screw nut 7 moves on the reciprocating screw 6. Under the limit of the connecting frame, it drives the slider 11 to move on the slide rod 10, thereby moving the moving frame 3 and the pipe forward to the top of the placement frame 13. It should be noted that the two placement plates 2 are located between the two transport plates 4. Therefore, after the transport plate 4 moves above the placement plate 2, the electric cylinder 14 is started to move it down, so that the pipe can be placed in the semi-circular groove of the placement plate 2. It should also be noted that the length of the pipe is longer than the distance between the two transport plates 4, so it can be placed between the two transport plates 4.

[0030] In Example 2, when placing the pipe on the placement plate 2 for testing, it needs to be secured to prevent inaccuracies during testing. Therefore, a securing component is required, such as... Figure 4 As shown, the fixing assembly includes a slide rail 16, a sliding frame 17, an electric cylinder 18, a support rod 19, a clamping ring 20, and a limiting assembly. The slide rail 16 is fixedly installed on the sides of both placement plates 2. The sliding frame 17 is slidably installed on the two slide rails 16. The electric cylinder 18 is installed on the sliding frame 17. The support rod 19 is fixedly connected to the output end of the electric cylinder 18, and the clamping ring 20 is fixedly installed on the bottom end of the support rod 19. There are two fixing assemblies, which are respectively installed on the two slide rails 16. The limiting assembly includes a fixing plate 21 and a bolt 22. The fixing plate 21 is fixedly installed on the slide rail 16. The side of the fixing plate 21 has a threaded hole. The two ends of the sliding frame 17 have threaded holes. The bolt 22 is threaded into the threaded holes.

[0031] Specifically, when the pipe is placed on the placement rack 13, the sliding rack 17 is moved to the position on the slide rail 16 until the threaded hole of the fixing plate 21 overlaps with the threaded hole of the sliding rack 17. At this time, the clamping ring 20 is located directly above the pipe. Then, the bolt 22 is threaded into the threaded hole, and then the electric cylinder 18 is activated to drive the support rod 19 and the clamping ring 20 to move down, thereby clamping the pipe. It should be noted that the inner curvature of the clamping ring 20 is consistent with the outer curvature of the pipe to be tested, so it can clamp and fix it.

[0032] Working principle: Move the sliding frame 17 to the position on the slide rail 16, then thread the bolt 22 into the threaded hole of the sliding frame 17 and the fixing plate 21 to fix it, start the electric cylinder 18, drive the support rod 19 and the clamping ring 20 to move down, thereby clamping and fixing the pipe.

[0033] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A centering device for pipeline pressure detection, comprising a workbench (1), the top end of the workbench (1) is fixedly provided with two placing plates (2), and the top end of the placing plate (2) is provided with a semicircular groove, characterized in that, Also include: The moving assembly, moving frame (3), carrying plate (4) and lifting pipe assembly, the moving assembly is arranged on the side of the workbench (1), the moving frame (3) is provided with two, two moving frames (3) are arranged on the moving assembly, the carrying plate (4) is provided with two, two carrying plates (4) are respectively in contact with the top of two moving frames (3), and the carrying plate (4) is provided with a semicircular groove consistent with the placing plate (2), the moving assembly is used to move the carrying plate (4) to the placing plate (2), and the lifting pipe assembly is provided with two, two lifting pipe assemblies are respectively arranged on the side of two moving frames (3), which are used to lift the pipe and place it in the semicircular groove of the placing plate (2).

2. The centering device for pipeline pressure detection according to claim 1, characterized in that, The moving assembly comprises: mounting plate one (5), reciprocating screw (6), screw nut (7), motor one (8) and sliding assembly, the mounting plate one (5) is provided with two, two mounting plates one (5) are fixedly installed on the same side of the workbench (1), the reciprocating screw (6) is rotatably installed between two mounting plates one (5), the motor one (8) is installed on the mounting plate one (5), and the output end of the motor one (8) is coaxially connected with the reciprocating screw (6), the screw nut (7) is threadedly installed on the reciprocating screw (6), and the sliding assembly is arranged at the other end of the workbench (1).

3. The centering device for pipeline pressure detection according to claim 2, wherein The sliding assembly comprises: mounting plate two (9), slide rod (10), sliding block (11) and connecting plate (12), the mounting plate two (9) is provided with two, two mounting plates two (9) are fixedly installed at the other end of the workbench (1), the slide rod (10) is fixedly installed between two mounting plates two (9), the sliding block (11) is slidably installed on the slide rod (10), and two moving frames (3) are respectively fixedly installed at the top of the screw nut (7) and the sliding block (11), the connecting plate (12) is fixedly installed on the side of the sliding block (11) and the screw nut (7), and the connecting plate (12) is located below the workbench (1).

4. The centering device for pipeline pressure detection according to claim 3, wherein The lifting pipe assembly comprises: placing frame (13), electric cylinder one (14) and lifting frame (15), the placing frame (13) is provided with two, two placing frames (13) are respectively fixedly installed on the side of two moving frames (3), the electric cylinder one (14) is provided with two, two electric cylinders one (14) are respectively installed on two placing frames (13), the output end of two electric cylinders one (14) is fixedly installed on lifting frame (15), and the side of two lifting frames (15) is fixedly installed carrying plate (4).

5. The centering device for pipeline pressure testing of claim 4, wherein, Also include fixed components, the fixed components include: slide rail (16), sliding frame (17), electric cylinder two (18), support rod (19), clamping ring (20) and limiting component, both sides of two said placement plate (2) are fixedly installed with slide rail (16), the sliding frame (17) is slidably installed on two slide rails (16), the electric cylinder two (18) is installed on the sliding frame (17), the support rod (19) is fixedly connected with the output end of the electric cylinder two (18), and the clamping ring (20) is fixedly installed at the bottom end of the support rod (19), the fixed component is provided with two, two fixed components are respectively arranged on two slide rails (16).

6. The centering device for pipeline pressure testing of claim 5, wherein, The limiting component includes a fixed plate (21) and a bolt (22), the fixed plate (21) is fixedly installed on the slide rail (16), the side of the fixed plate (21) is provided with a threaded hole, both ends of the sliding frame (17) are provided with threaded holes, and the bolt (22) is screwed into the threaded hole.

7. The centering device for pipeline pressure testing of claim 6, wherein, The height of the placement plate (2) is higher than the height of the carrying plate (4).

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