CN201475579U - Expansion ring for plastic pipeline - Google Patents

Abstract

The utility model relates to an expansion ring for a plastic pipeline, which is used for compensating the expansion of a pipeline system because the plastic pipeline system is heated and or cooled, and consists of a spiral pipe body crooked for one circle. The expansion ring has the advantages of small resistance and impact force caused during the flow of fluid, good elasticity, and large compensation level; molding process property of the product is good, production and process are convenient, and the molding quality of the product is easily ensured.

Description

The plastic pipe expansion ring

Technical field

The utility model relates to the connection pipe fitting of plastic pipe, is specifically related to a kind of plastic pipe expansion ring.

Background technique

In pipe-line system, flexible the compensating of pipeline that need be heated and catch a cold and produce system usually.At present plastic duct system adopts crooked pipe to carry out flexible compensation mostly, and this crooked pipe is the plastic pipe that there is the bending of U type in a stage casing, be connected in pipe-line system after, flexible the compensating of utilizing the distortion of U type bending section that pipe-line system is produced.The radius of curvature of changeover portion is subjected to the compensating part size restrictions generally all relative less because this kind U type crooked pipe bending section and straight length join, so the resistance that fluid is produced during by crooked pipe is bigger, impact force to crooked pipe is also stronger relatively, thus pipe-line system line transportation effect is exerted an adverse impact.

Summary of the invention

The purpose of this utility model is at the problems referred to above, and a kind of flexible compensation that is used for pipeline in the plastic duct system that is fit to be assemblied in is provided, and can effectively reduce fluid by the time resistance that produced and the plastic pipe expansion ring of impact force.

The technological scheme that realizes above-mentioned purpose is: a kind of plastic pipe expansion ring, it is a spirality body around Qu Yizhou.

The utility model is designed to spirality body around Qu Yizhou with the pipeline expansion ring, has following advantage:

1, under the same specification compensating part condition, the radius of curvature of flexible compensation section is bigger, and resistance and impact force that fluid is produced during by compensator section reduce greatly.

2, the telescopicing performance of helical annular body is good, and the system balance amount is big.

3, building-up property is good, makes things convenient for production and processing, is easy to guarantee the formed product quality.

Description of drawings

Fig. 1 is this plastic pipe expansion ring plan view;

Fig. 2 is the plan view of Fig. 1.

Embodiment

In conjunction with the accompanying drawings embodiment of the present utility model is described.

As accompanying drawing, this plastic pipe expansion ring adopts the plastic tube body moulding, the ring body 1 of body is the spirality ring body around Qu Yizhou, and the joint 2 at body two ends places same plane and becomes parastate to extend to both sides, is connected with the plastic pipe hot melt that joins by joint 2 when being assemblied in pipe-line system.

Claims (1)

1. plastic pipe expansion ring, it is characterized in that: it is a spirality body around Qu Yizhou.

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