Clamp for pipe expansion and pressure test of flexible composite pipe

Abstract

The utility model discloses a clamp for pipe expansion and pressure test of a flexible composite pipe, and belongs to the technical field of flexible composite pipes. The device is novel in design and ingenious, when the air bag expands, the piston can be pushed to move in the direction away from the air bag, when the piston moves, the two clamping jaws are driven by the movable rod connected with the piston to clamp the flexible composite pipe, the air inlet speed of the air pump is adjusted through the controller, the clamping force of the clamping jaws is adjusted, and therefore the clamping force of the flexible composite pipe is adjusted. According to the clamping device, flexible composite pipes of different specifications and materials are stably clamped, accurate control over the clamping force is ensured, pipe body damage is avoided, the clamping jaws are made of abrasion-resistant materials and have the long service life, the rubber gaskets are arranged in the clamping jaws, the protection effect is achieved in the flexible composite pipe clamping process, and then the clamping effect is improved. The use effect is improved, the stability of the flexible composite pipe is ensured, the service life of the clamp is prolonged, the maintenance cost is reduced, and the practicability of the device is greatly improved.

Description

Technical Field

[0001] The present application relates to the technical field of flexible composite pipes, and in particular to a clamp for expanding and pressure testing a flexible composite pipe. Background Art

[0002] Flexible composite pipes are widely used in industrial fields such as oil and natural gas due to their excellent performance. In the process of production and use, pipe expansion and pressure testing are indispensable links. However, the existing clamping equipment cannot fully meet the needs of efficient and precise pipe expansion and pressure testing for flexible composite pipes.

[0003] Traditional flexible composite pipe expansion and pressure test fixtures usually use mechanical clamping methods, which are not only complicated to operate, but also difficult to control the clamping force, which can easily cause damage to the pipe body or inaccurate test data. In addition, the existing clamp equipment is complicated to operate and the clamping force is difficult to accurately control, which can easily cause damage to the pipe body and affect the accuracy of the test data.

[0004] To this end, the present application proposes a flexible composite pipe expansion and pressure testing fixture. Utility Model Content

[0005] The present application proposes a clamp for expanding and pressure testing a flexible composite pipe to solve the problems raised in the above-mentioned background technology. When the airbag expands, it will push the piston to move away from the airbag. When the piston moves, it will drive the two jaws to clamp the flexible composite pipe through the movable rod connected thereto. The controller adjusts the air intake speed of the air pump to adjust the clamping force of the jaws, thereby achieving stable clamping of flexible composite pipes of different specifications and materials, ensuring precise control of the clamping force to avoid damage to the pipe body. The jaws are made of wear-resistant material and have a long service life. By arranging a rubber gasket inside the jaws, it plays a protective role in the process of clamping the flexible composite pipe, thereby improving the use effect, ensuring the stability of the flexible composite pipe, extending the service life of the clamp, reducing maintenance costs, and greatly improving the practicality of the device.

[0006] In order to achieve the above purpose, this application adopts the following technical solutions:

[0007] A fixture for expanding and pressure testing a flexible composite pipe comprises a workbench, the outside of which is fixedly connected to a controller, the top of which is fixedly connected to two boxes, the interiors of the two boxes are each provided with a pneumatic component, the pneumatic component comprises a cylinder, the two cylinders are both fixedly connected to the interior of the box, the interiors of the two cylinders are both provided with an airbag, the interiors of the two cylinders and located on one side of the airbag are both slidably connected to a piston, the interiors of the two cylinders and located on a side of the piston away from the airbag are both fixedly connected to a movable rod, and one end of the two movable rods extends to the outside of the box.

[0008] As a preferred embodiment, a limiting component is arranged inside the workbench, and the limiting component comprises a limiting groove, the limiting groove is arranged inside the workbench, and a limiting rod is fixedly connected inside the limiting groove;

[0009] By setting the limit assembly, the stability of the fixture during movement can be ensured, making it less likely to shake or shift in position, thereby improving the practicability of the device.

[0010] As a preferred embodiment, one end of the two movable rods is fixedly connected to a clamping assembly, and the clamping assembly includes a movable plate, the two movable plates are slidably connected to the outside of the limiting rod and are located inside the limiting groove, and the outsides of the two movable plates are fixedly connected to one end of the movable rod, the top ends of the two movable plates are fixedly connected to clamping claws, and the inner sides of the two clamping claws are fixedly connected to rubber gaskets;

[0011] By adjusting the clamping force of the clamping jaws, stable clamping of flexible composite pipes of different specifications and materials can be achieved, ensuring precise control of the clamping force and avoiding damage to the pipe body. The clamping jaws are made of wear-resistant materials and have a long service life. By arranging rubber gaskets inside the clamping jaws, they play a protective role in the clamping process of the flexible composite pipe, thereby improving the use effect, ensuring the stability of the flexible composite pipe, extending the service life of the clamp, reducing maintenance costs, and thus improving the practicability of the device.

[0012] As a preferred embodiment, the inside of the workbench is fixedly connected with an air delivery component, the air delivery component includes an air pump, the air pump is fixedly connected inside the workbench, and the air pump is electrically connected to a controller, the input end of the air pump is fixedly connected with an air inlet pipe, and one end of the air inlet pipe extends to the outside of the workbench, the output end of the air pump is fixedly connected with an air outlet pipe, one end of the air outlet pipe is fixedly connected with two air pipes 1, one end of the two air pipes 1 is fixedly connected with air pipe 2, and one end of the two air pipes 2 away from air pipe 1 extends to the inside of the cylinder and communicates with the air bag;

[0013] Gas is input into the air outlet pipe through the air inlet pipe, and the gas is discharged to the air pipe two through two air pipes one respectively. The gas enters the air bag through the air pipe two, so that the air bag begins to expand and drives the piston to move, thereby improving the practicality of the device.

[0014] As a preferred embodiment, a moving assembly is fixedly connected to the top of the workbench, and the moving assembly includes a fixed plate, the fixed plate is fixedly connected to the top of the workbench, an electric telescopic rod is fixedly connected to the outside of the fixed plate, and the electric telescopic rod is electrically connected to the controller;

[0015] By installing a fixing plate, the material of which is cast iron, which has relatively weak hardness, strength and wear resistance but is light in weight and suitable for fixing smaller equipment, the practicability of the device is improved.

[0016] As a preferred embodiment, a tube expansion assembly is slidably connected to the top of the workbench, and the tube expansion assembly includes a servo controller, the servo controller is slidably connected to the top of the workbench, and the telescopic end of the electric telescopic rod is fixedly connected to the outside of the servo controller, and the top of the servo controller is fixedly connected to a tube expansion head;

[0017] By setting up a pipe expansion head with a high-precision design, the accuracy of pipe expansion can be ensured; the servo controller achieves accurate pipe expansion of the flexible composite pipe by accurately controlling the pipe expansion speed and pipe expansion amount, ensuring the accuracy and stability of pipe expansion and thus improving the practicability of the device.

[0018] Beneficial effects of this application:

[0019] 1. This kind of flexible composite pipe expansion and pressure testing clamp, when the airbag expands, it will push the piston to move away from the airbag, when the piston moves, it will drive the two clamps to clamp the flexible composite pipe through the movable rod connected thereto, and adjust the clamping force of the clamps by adjusting the air intake speed of the air pump through the controller, so as to achieve stable clamping of flexible composite pipes of different specifications and materials, ensure accurate control of the clamping force to avoid damage to the pipe body, the clamps are made of wear-resistant materials and have a long service life, and a rubber gasket is arranged inside the clamps to protect the flexible composite pipe during the clamping process, thereby improving the use effect, ensuring the stability of the flexible composite pipe, extending the service life of the clamp, reducing maintenance costs, and greatly improving the practicality of the device;

[0020] 2. This flexible composite pipe expansion and pressure testing fixture has a high-precision expansion head design that can ensure the accuracy of expansion; the servo controller achieves accurate expansion of the flexible composite pipe by accurately controlling the expansion speed and expansion amount, ensuring the accuracy and stability of the expansion and greatly improving the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the main body of the device of this application;

[0022] Figure 2 It is an internal side view of the device of the present application;

[0023] Figure 3 is an internal side view of the device of the present application;

[0024] Figure 4 This is an internal side view of the device of the present application.

[0025] Numbers in the figure: 1. workbench; 2. controller; 3. box; 4. pneumatic component; 41. cylinder; 42. air bag; 43. piston; 44. movable rod; 5. clamping component; 51. movable plate; 52. clamping claw; 53. rubber gasket; 6. limit assembly; 61. limit groove; 62. limit rod; 7. gas transmission component; 71. air pump; 72. air inlet pipe; 73. air outlet pipe; 74. air pipe one; 75. air pipe two; 8. moving component; 81. fixed plate; 82. electric telescopic rod; 9. tube expansion component; 91. servo controller; 92. tube expansion head. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.

[0027] Reference Figure 1-4 A flexible composite pipe expansion and pressure testing fixture comprises a workbench 1, a controller 2 is fixedly connected to the outside of the workbench 1, and two boxes 3 are fixedly connected to the top of the workbench 1.

[0028] Reference Figure 1-3 A pneumatic assembly 4 is provided inside the two boxes 3. The pneumatic assembly 4 includes a cylinder 41. The two cylinders 41 are fixedly connected to the inside of the box 3. An airbag 42 is provided inside the two cylinders 41. A piston 43 is slidably connected inside the two cylinders 41 and on one side of the airbag 42. A movable rod 44 is fixedly connected inside the two cylinders 41 and on the side of the piston 43 away from the airbag 42, and one end of the two movable rods 44 extends to the outside of the box 3; when the airbag 42 expands, it pushes the piston 43 to move in the direction away from the airbag 42.

[0029] Reference Figure 1-4 A limit assembly 6 is arranged inside the workbench 1, and the limit assembly 6 includes a limit groove 61. The limit groove 61 is opened inside the workbench 1, and a limit rod 62 is fixedly connected inside the limit groove 61. Through the arrangement of the limit assembly 6, the stability of the clamp during movement can be ensured, so that it is not easy to shake or shift in position, thereby improving the practicality of the device.

[0030] Reference Figure 1-4, one end of the two movable rods 44 is fixedly connected with a clamping assembly 5, and the clamping assembly 5 includes a movable plate 51, the two movable plates 51 are slidably connected to the outside of the limiting rod 62 and are located inside the limiting groove 61, and the outsides of the two movable plates 51 are fixedly connected to one end of the movable rod 44, the tops of the two movable plates 51 are fixedly connected with clamping claws 52, and the inner sides of the two clamping claws 52 are fixedly connected with rubber gaskets 53; by adjusting the clamping force of the clamping claws 52, stable clamping of flexible composite pipes of different specifications and materials can be achieved, accurate control of the clamping force is ensured, and damage to the pipe body is avoided. The clamping claws 52 are made of wear-resistant material and have a long service life. By arranging the rubber gasket 53 inside the clamping claws 52, a protective role is played in the process of clamping the flexible composite pipe, thereby improving the use effect, ensuring the stability of the flexible composite pipe, extending the service life of the clamp, reducing the maintenance cost, and thus improving the practicability of the device.

[0031] Reference Figure 1-4 The inside of the workbench 1 is fixedly connected with an air delivery component 7, and the air delivery component 7 includes an air pump 71, which is fixedly connected to the inside of the workbench 1, and the air pump 71 is electrically connected to the controller 2, the input end of the air pump 71 is fixedly connected with an air inlet pipe 72, and one end of the air inlet pipe 72 extends to the outside of the workbench 1, and the output end of the air pump 71 is fixedly connected with an air outlet pipe 73, one end of the air outlet pipe 73 is fixedly connected with two air pipes 1 74, one end of the two air pipes 1 74 is fixedly connected with air pipe 2 75, and the ends of the two air pipes 2 75 away from the air pipe 1 74 are extended to the inside of the cylinder 41 and communicate with the air bag 42; gas is input into the air outlet pipe 73 through the air inlet pipe 72, and the gas is discharged to the air pipe 2 75 respectively through the two air pipes 1 74, and the gas enters the air bag 42 through the air pipe 2 75, so that the air bag 42 begins to expand and drives the piston 43 to move, thereby improving the practicality of the device.

[0032] Reference Figure 1-4 A moving assembly 8 is fixedly connected to the top of the workbench 1, and the moving assembly 8 includes a fixing plate 81, and the fixing plate 81 is fixedly connected to the top of the workbench 1. An electric telescopic rod 82 is fixedly connected to the outside of the fixing plate 81, and the electric telescopic rod 82 is electrically connected to the controller 2; by installing the fixing plate 81, the material is cast iron, its hardness, strength and wear resistance are relatively weak, but it is light in weight, and it is suitable for fixing smaller equipment, thereby improving the practicality of the device.

[0033] Reference Figure 1-4A tube expansion assembly 9 is slidably connected to the top of the workbench 1, and the tube expansion assembly 9 includes a servo controller 91. The servo controller 91 is slidably connected to the top of the workbench 1, and the telescopic end of the electric telescopic rod 82 is fixedly connected to the outside of the servo controller 91, and a tube expansion head 92 is fixedly connected to the top of the servo controller 91; by setting the tube expansion head 92, the tube expansion head 92 adopts a high-precision design to ensure the accuracy of tube expansion; the servo controller 91 realizes accurate tube expansion of the flexible composite tube by accurately controlling the tube expansion speed and the tube expansion amount, thereby ensuring the accuracy and stability of the tube expansion and improving the practicability of the device.

[0034] Working principle: When the device is used, the air pump 71 is started by the controller 2, and gas is input into the air outlet pipe 73 through the air inlet pipe 72. The gas is discharged to the air pipe 2 75 through the two air pipes 1 74 respectively. The gas enters the airbag 42 through the air pipe 2 75, so that the airbag 42 begins to expand. When the airbag 42 expands, it will push the piston 43 to move away from the airbag 42. When the piston 43 moves, it will drive the two clamps 52 to clamp the flexible composite pipe through the movable rod 44 connected thereto. The controller 2 adjusts the air intake speed of the air pump 71 to adjust the clamping force of the clamp 52, thereby achieving stable clamping of flexible composite pipes of different specifications and materials, ensuring accurate control of the clamping force, and avoiding damage to the pipe body. The clamp 52 is made of wear-resistant material and has a long service life. By arranging a rubber gasket 53 inside the clamp 52, it plays a protective role in the process of clamping the flexible composite pipe, thereby improving the use effect, ensuring the stability of the flexible composite pipe, extending the service life of the clamp, and reducing the maintenance cost.

[0035] The expansion head 92 adopts a high-precision design to ensure the accuracy of expansion; the servo controller 91 achieves accurate expansion of the flexible composite tube by accurately controlling the expansion speed and expansion amount, ensuring the accuracy and stability of the expansion.

[0036] During the pressure test, the clamp can be used in conjunction with the pressure test equipment to achieve pressure testing of flexible composite pipes. Through the coordinated action of the clamping mechanism and the pipe expansion mechanism, the stability of the pipe body and the accuracy of the test data during the pressure test can be ensured, thereby simplifying the operation process, improving work efficiency, improving the accuracy of pipe expansion, and ensuring the accuracy of test data.

[0037] The above are only preferred specific implementation methods of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes within the technical scope disclosed in the present application according to the technical solution and utility model concept of the present application, which should be covered by the protection scope of the present application.

Claims

1. A flexible composite pipe expansion and pressure testing fixture, comprising a workbench (1), characterized in that: The outside of the workbench (1) is fixedly connected to a controller (2), the top of the workbench (1) is fixedly connected to two boxes (3), the inside of the two boxes (3) is provided with a pneumatic assembly (4), the pneumatic assembly (4) comprises a cylinder (41), the two cylinders (41) are fixedly connected to the inside of the box (3), the inside of the two cylinders (41) is provided with an air bag (42), the inside of the two cylinders (41) and located on one side of the air bag (42) are slidably connected to a piston (43), the inside of the two cylinders (41) and located on a side of the piston (43) away from the air bag (42) are fixedly connected to a movable rod (44), and one end of the two movable rods (44) extends to the outside of the box (3).

2. A flexible composite pipe expansion and pressure testing fixture according to claim 1, characterized in that: A limit assembly (6) is arranged inside the workbench (1), and the limit assembly (6) comprises a limit groove (61). The limit groove (61) is opened inside the workbench (1), and a limit rod (62) is fixedly connected inside the limit groove (61).

3. A flexible composite pipe expansion and pressure testing fixture according to claim 2, characterized in that: One end of the two movable rods (44) is fixedly connected to a clamping assembly (5), and the clamping assembly (5) comprises a movable plate (51). The two movable plates (51) are slidably connected to the outside of the limiting rod (62) and are located inside the limiting groove (61), and the outside of the two movable plates (51) is fixedly connected to one end of the movable rod (44), the top ends of the two movable plates (51) are fixedly connected to clamping claws (52), and the inner sides of the two clamping claws (52) are fixedly connected to rubber gaskets (53).

4. A flexible composite pipe expansion and pressure testing fixture according to claim 1, characterized in that: The workbench (1) is fixedly connected to an air delivery assembly (7), the air delivery assembly (7) comprising an air pump (71), the air pump (71) being fixedly connected to the workbench (1), and the air pump (71) being electrically connected to a controller (2), the input end of the air pump (71) being fixedly connected to an air intake pipe (72), and one end of the air intake pipe (72) extending to the outside of the workbench (1), the output end of the air pump (71) being fixedly connected to an air outlet pipe (73), one end of the air outlet pipe (73) being fixedly connected to two air pipes one (74), one end of the two air pipes one (74) being fixedly connected to air pipe two (75), and one end of the two air pipes two (75) away from air pipe one (74) extending to the inside of the cylinder (41) to communicate with the air bag (42).

5. A flexible composite pipe expansion and pressure testing fixture according to claim 1, characterized in that: A moving assembly (8) is fixedly connected to the top of the workbench (1), and the moving assembly (8) comprises a fixing plate (81), the fixing plate (81) is fixedly connected to the top of the workbench (1), an electric telescopic rod (82) is fixedly connected to the outside of the fixing plate (81), and the electric telescopic rod (82) is electrically connected to the controller (2).

6. A flexible composite pipe expansion and pressure testing fixture according to claim 5, characterized in that: The top of the workbench (1) is slidably connected to a tube expansion assembly (9), the tube expansion assembly (9) comprising a servo controller (91), the servo controller (91) being slidably connected to the top of the workbench (1), and the telescopic end of the electric telescopic rod (82) is fixedly connected to the outside of the servo controller (91), and the top of the servo controller (91) is fixedly connected to a tube expansion head (92).

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