Hollow structure wall winding pipe with high connection strength

Abstract

The invention discloses a hollow structure wall winding pipe with high connection strength. The hollow structure wall winding pipe comprises structure strips, and each structure strip comprises a pipebody and lap joint parts, wherein the lap joint parts are arranged at the two sides of the pipe body, the lap joint parts are composed of a first lap joint part and a second lap joint part, the firstlap joint part is arranged at the lower part of one side of the pipe body, and the second lap joint part is arranged at the upper portion of the other side of the pipe body; and every two adjacent pipe bodies are matched in a lap joint manner through the corresponding first lap joint parts and the corresponding second lap joint parts, the lap joint faces are stepped faces coated with adhesive glue, and the first lap joint parts and the second lap joint parts are provided with locking structures which are in lap joint in a matched manner. According to the hollow structure wall winding pipe, the sealing performance and the connecting strength of the winding pipe are guaranteed by designing the lap joint structures and the locking structures; and compared with the prior art, the winding pipehas the obvious advantages in the aspects of process forming, the sealing effect and the connecting strength, and due to the arrangement of the lap joint structures and the locking structures, a connecting interface between the structural strips can be tighter and firmer, and the bonding strength is higher.

Description

technical field [0001] The invention relates to the technical field of hollow structural wall winding pipes, in particular to a hollow structural wall winding pipe with high connection strength. Background technique [0002] Hollow structural wall winding pipe is a special structural wall pipe with high resistance to external pressure made of high-density polyethylene by hot winding molding process. Due to its unique forming process, it can produce diameters up to 3 meters of pipe, which is difficult to complete with other production processes. Due to its excellent welding performance, high-density polyethylene (HDPE) not only guarantees the product molding process and product quality, but also provides a variety of reliable methods for construction connections, such as electric fusion welding, heat shrinkage connection, etc. At the same time, this It is also an important reason why leakage rarely occurs. The hollow structure wall winding pipe has stable chemical propertie...

AI Technical Summary

Problems solved by technology

However, this structural form mainly has the following three problems in practical application: First, the lack of force constraints in the width direction of the tube and strip, when the wound tube is stressed in the axial direction, the force load is relatively small, The gap is easy to be widened, and the sealing effect is poor, especially when the adhesive has not yet cured, the gap between the pipe and strip is easy to be too large; the second is that after the pipe and strip are wound, under the action of the resilience , the joints are easy to dislocate and widen the gap, which eventually leads to the unsatisfactory tightness and rigidity of the winding pipe; third, when winding and forming, the structural strip with a chimeric structure needs to be wound first and then tightly formed. The traditional direct compression winding method is different, and the molding process is more complicated, which is not conducive to the control of production costs

[0004] In addition, in order to improve the structural strength of the wound pipe itself, it is common practice to use better materials or to set a support frame in the hollow structure of the wound pipe. Although this method can improve the structural strength of the wound pipe itself, the production cost increases significantly and shrinks. profit margin

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