Composite pipe connection joint using prestressed cables and method of use thereof

A technology of composite material pipes and prestressed cables, which is applied to the connection of rods, connecting components, mechanical equipment, etc., can solve the problems of insufficient bearing capacity, and achieve the effect of improving bearing capacity, strong practicability, and simple structure

Active Publication Date: 2017-09-22
PLA UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a composite material pipe connection joint using prestressed cables, which overcomes the problem of insufficient bearing capacity at the traditional pretension tooth connection joint

Method used

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  • Composite pipe connection joint using prestressed cables and method of use thereof
  • Composite pipe connection joint using prestressed cables and method of use thereof
  • Composite pipe connection joint using prestressed cables and method of use thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] combine figure 1 and figure 2 , a composite pipe connection joint using prestressed cables, including an outer casing 2, an internal pressure pipe 3, a cap 4, a prestressed cable 5 and an anchor 6. One end of the composite material tube 1 to be connected is threadedly connected to the inner wall of the outer tube 2, and the internal pressure tube 3 is arranged on the inner wall of the connecting section between the outer tube 2 and the composite material tube 1 through interference fit. The material of the cap 4 is steel, including the fixed ring 4-1 and the fixed seat 4-2, the fixed ring 4-1 is welded on the fixed seat 4-2, the center of the fixed ring 4-1 coincides with the center of the fixed seat 4-2, and the outer casing 2. The other end is threadedly connected with the fixing ring 4-1. There is a wedge-shaped hole in the center of the fixing seat 4-2. The prestressed cable 5 passes through the wedge-shaped hole on the fixing seat 4-2 and runs through the composi...

Embodiment 2

[0059] combine figure 1 and figure 2 , a composite pipe connection joint using prestressed cables, including an outer casing 2, an internal pressure pipe 3, a cap 4, a prestressed cable 5 and an anchor 6. One end of the composite material tube 1 to be connected is fixedly connected with the inner wall of the outer tube 2 by pouring glue, the inner pressure tube 3 is arranged on the inner wall of the connecting section between the outer tube 2 and the composite material tube 1 through interference fit, and the cap 4 is integrally formed of a composite material. It includes a fixed ring 4-1 and a fixed seat 4-2, the fixed ring 4-1 is arranged on the fixed seat 4-2, the center of the fixed ring 4-1 coincides with the center of the fixed seat 4-2, and the other end of the outer sleeve 2 is connected to the fixed ring 4-1 is connected by glue filling, a round hole is set in the center of the fixing seat 4-2, the prestressed cable 5 passes through the round hole on the fixing seat...

Embodiment 3

[0072] combine figure 1 and figure 2 , a composite pipe connection joint using prestressed cables, including an outer casing 2, an internal pressure pipe 3, a cap 4, a prestressed cable 5 and an anchor 6. One end of the composite material tube 1 to be connected is threadedly connected to the inner wall of the outer tube 2, and the internal pressure tube 3 is arranged on the inner wall of the connecting section between the outer tube 2 and the composite material tube 1 through interference fit. The cap 4 is manufactured in the whole factory, including the fixing ring 4 -1 and the fixed seat 4-2, the center of the fixed ring 4-1 coincides with the center of the fixed seat 4-2, the other end of the outer sleeve 2 is threadedly connected with the fixed ring 4-1, and the center of the fixed seat 4-2 is provided with a wedge-shaped hole, The prestressed cable 5 passes through the wedge-shaped hole on the fixing seat 4-2 and runs through the composite material pipe 1, and the ancho...

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Abstract

The invention discloses a connector employing a prestressed cable for a composite pipe and an application method of the connector. The connector comprises an outer sleeve, an inner pressing pipe, a cover, the prestressed cable and an anchoring tool, wherein one end of the composite pipe to be connected is fixedly connected with the inner wall of the outer sleeve; the inner pressing pipe is arranged on the inner wall of a section in which the outer sleeve is connected with the composite pipe by interference fit; the cover comprises a fixing ring and a fixing seat, wherein the fixing ring is arranged on the fixing seat, and the center of the fixing ring is overlapped with the center of the fixing seat; one end of the outer sleeve is fixedly connected with the fixing ring; a circular hole is formed in the center of the fixing seat; the prestressed cable passes through the circular hole in the fixing seat as well as passing through the composite pipe; the anchoring tool is arranged in the circular hole and used for anchoring the prestressed cable. According to the connector, the prestressed cable passing through the composite pipe is added and shares the force to be transmitted between the outer sleeve and the composite pipe; the cover is arranged to increase the bearing force of the connector, and thus the force bearing property of the joint can be optimized. The connector is simple in structure, convenient to operate, and high in practicability.

Description

technical field [0001] The invention belongs to the field of connection of structural engineering composite material components, in particular to a composite material pipe connection joint using prestressed cables and a use method thereof. Background technique [0002] In view of the advantages of light weight, high strength and corrosion resistance, composite materials have been widely used in the aerospace field. In recent years, with the industrialization of composite materials, some special civil engineering has also begun to use composite materials as structural components. For example, emergency rescue projects use composite material components instead of steel components to facilitate transportation and installation. [0003] In the application of composite materials, the connection between composite material components is one of the important problems faced. The traditional connection methods of composite materials include adhesive bonding and mechanical connection....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16B7/08
Inventor 张冬冬李飞赵启林李峰楚玉川高一峰陶杰吕亚茹
Owner PLA UNIV OF SCI & TECH
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