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CN-116183359-B - Fixing device, performance testing system and performance testing method of reinforced pipe

CN116183359BCN 116183359 BCN116183359 BCN 116183359BCN-116183359-B

Abstract

The application provides a fixing device, a performance testing system and a performance testing method of a reinforced pipe, and relates to the technical field of performance testing of reinforced pipes. The fixing device is used for fixing the reinforced pipe and comprises a loading piece, two clamping pieces and a fixing piece. The loading member has a first side for connecting a load and a second side opposite the first side. The two clamping pieces are connected to the loading piece and are positioned on the second side of the loading piece, the two clamping pieces are configured to clamp the reinforcing ribs, and one sides of the two clamping pieces, which are away from the loading piece, are configured to abut against the outer peripheral surface of the pipeline. The fixing piece is connected to the loading piece and is located on the second side of the loading piece, and the fixing piece is configured to be abutted with the surface, facing away from the pipeline, of the reinforcing rib. The fixing device is used for fixing three directions of the reinforcing ribs of the reinforced pipe, stress concentration at the reinforcing ribs can be avoided to a certain extent, and simultaneously, the fixing device is used for fixing two directions of a pipeline, so that the fixing effect of the reinforced pipe is better, and the test result is more accurate.

Inventors

  • NAN YANG
  • XU HUAMING
  • LIU YONG
  • WANG YONGMING
  • LI WEI

Assignees

  • 连云港中复连众复合材料集团有限公司

Dates

Publication Date
20260505
Application Date
20220727

Claims (9)

  1. 1. The utility model provides a fixing device for fixed reinforcement pipe, the reinforcement pipe include the pipeline and set up in the strengthening rib of pipeline outer peripheral face, fixing device includes: a loading member having a first side for connecting a load and a second side opposite the first side; The two clamping pieces are connected to the loading piece and positioned on the second side of the loading piece, and the two clamping pieces are configured to clamp the reinforcing ribs; the clamping pieces comprise clamping plates and abutting plates which are fixedly connected, wherein the clamping plates are connected to the loading piece, the two clamping plates are configured to clamp the reinforcing ribs, one sides of the two abutting plates, which are away from the loading piece, are configured to abut against the outer peripheral surface of the pipeline, and each clamping piece further comprises a connecting plate which is connected with one end of the clamping plate, which is away from the abutting plates, and the connecting plate is connected with the loading plate; The fixing piece is connected to the loading piece and located on the second side of the loading piece, the fixing piece is configured to be abutted against the surface, away from the pipeline, of the reinforcing rib, the fixing piece is arranged between the two clamping plates, and the fixing piece is connected with the loading plate.
  2. 2. The fixture of claim 1 wherein two of said webs are reciprocally movable relative to said load plate to adjust the distance between two of said clamp plates.
  3. 3. The fixing device according to claim 2, wherein a bar hole is provided in the loading plate, a fixing rod is connected to the connecting plate through the bar hole, and the fixing rod can reciprocate in the bar hole to adjust a distance between the two clamping plates.
  4. 4. The fixture of claim 1 wherein the load plate is in abutment with the connecting plate and the fixture is threadably connected to the load plate by a connecting rod to adjust the distance between the fixture and the load plate.
  5. 5. The fixture of claim 4 wherein the connecting plate, the clamping plate and the abutment plate are combined into a U-shaped plate, the U-shaped mouths of the two U-shaped plates facing away from each other.
  6. 6. The fixture of claim 1 wherein the fixture is fixedly connected to the load plate and the load plate is threadably connected to the connecting plate by a fixing rod to adjust the distance between the load plate and the connecting plate.
  7. 7. The fixing device according to any one of claims 4 to 6, wherein the fixing member has a plane surface and a concave arc surface which are oppositely arranged, and the plane surface or the concave arc surface is used for selectively abutting against a surface of the reinforcing rib, which is away from the pipeline.
  8. 8. A performance testing system for a reinforced pipe, comprising a loading device configured to apply a load to the loading member and the fixture of any one of claims 1-7.
  9. 9. A performance testing method for a reinforced pipe, suitable for the performance testing system of claim 8, comprising: placing the ribbed tube on a bearing surface; The two clamping pieces are arranged on two sides of the reinforcing rib and clamp the reinforcing rib, and meanwhile, one side, away from the loading piece, of the clamping piece is abutted against the outer peripheral surface, away from the bearing surface, of the pipeline; the loading device is coupled to the first side of the loading member and provides a load to the loading member.

Description

Fixing device, performance testing system and performance testing method of reinforced pipe Technical Field The application relates to the technical field of performance testing of reinforced pipes, in particular to a fixing device, a performance testing system and a performance testing method of a reinforced pipe. Background The reinforced plastic is compounded by using glass fiber and its product as reinforcing material and thermosetting resin as matrix material, and is usually referred to as glass fiber reinforced plastic. The pipe made of the glass fiber reinforced plastic material is called a glass fiber reinforced plastic pipe, in order to improve the deformation resistance of the glass fiber reinforced plastic pipe, reinforcing ribs (the glass fiber reinforced plastic pipe and the reinforcing ribs are combined into a reinforced pipe) are arranged on the outer surface of the glass fiber reinforced plastic pipe at intervals, the reinforcing ribs are of annular rib-shaped structures integrally formed with the glass fiber reinforced plastic pipe, and the cross section of the reinforcing ribs can be circular, elliptical, rectangular or trapezoidal. Foreign glass fiber reinforced plastic pipeline standards such as AWA C950, ISO 23856, ASTM D2996 and the like are numerous, but none of the standards relates to the relevant regulations and requirements of reinforced pipes, so that no method is adopted as the standard of the reinforced pipes. The domestic standards such as GB/T21238, GB 51160, JC/T552 and the like do not give the concept of the reinforced pipe, so that the inspection and test method of the reinforced pipe is also not provided. Just like other pipes, each pipe has its own standard, and the reinforced pipe is always one of pure glass fiber reinforced plastic pipes, but there is a great deviation from the actual standard of the reinforced pipe. Because the reinforced pipe contains the reinforced rib, if the rigidity of the reinforced pipe is tested by adopting the traditional device for testing the smooth wall pipe, the test device and the reinforced rib can slide to cause great deviation of the test result, and meanwhile, the reinforced rib is damaged due to local stress concentration caused by the special shape of the reinforced rib, and the deviation of the test result can be caused. Disclosure of Invention The application aims to provide a fixing device, a performance test system and a performance test method for a reinforced pipe, so that the reinforced pipe is well fixed, and the performance test result of the reinforced pipe can be more accurate. In a first aspect, an embodiment of the present application provides a fixing device for fixing a ribbed pipe, where the ribbed pipe includes a pipe and a reinforcing rib disposed on an outer surface of the pipe, and the fixing device includes a loading member, two clamping members, and a fixing member. The loading member has a first side for connecting a load and a second side opposite the first side. The two clamping pieces are connected to the loading piece and are positioned on the second side of the loading piece, the two clamping pieces are configured to clamp the reinforcing ribs, and one sides of the two clamping pieces, which are away from the loading piece, are configured to abut against the outer peripheral surface of the pipeline. The fixing piece is connected to the loading piece and is located on the second side of the loading piece, and the fixing piece is configured to be abutted with the surface, facing away from the pipeline, of the reinforcing rib. In the above technical scheme, the reinforcing rib of the reinforced pipe is arranged between the two clamping pieces so as to fix the two sides of the reinforcing rib, the fixing piece is used for fixing the end part of the reinforcing rib, which is far away from the pipeline, and the clamping piece is used for fixing one side of the pipeline, so that the reinforced pipe can be fixed between the bearing surface and the fixing device, and the fixing effect of the reinforced pipe is better. The force may be applied through the entire stiffening tube of the fixture while loading the first side of the loader to test its performance. Simultaneously, the two directions of the pipeline are fixed, so that the fixing effect of the reinforced pipe is better, and the test result is more accurate. In one possible implementation, each clamping member comprises a clamping plate and an abutting plate which are fixedly connected, wherein the clamping plate is connected to the loading member, the two clamping plates are configured to clamp the reinforcing ribs, and one side of the two abutting plates, which is away from the loading member, is configured to abut against the outer peripheral surface of the pipeline. In the technical scheme, the reinforcing ribs and the pipelines are fixed through the plate-shaped structure, so that the fixing effect of the reinforced pipe is better, and the performance