CN202580357U

CN202580357U - Corrugated pipe consisting of U-shaped framework

Info

Publication number: CN202580357U
Application number: CN 201220027010
Authority: CN
Inventors: 万天鸿; 谈刚强; 施经东
Original assignee: ZHEJIANG SHUANGLIN ELECTROMECHANICAL TECHNOLOGY Co Ltd
Current assignee: ZHEJIANG SHUANGLIN ELECTROMECHANICAL TECHNOLOGY Co Ltd
Priority date: 2012-01-20
Filing date: 2012-01-20
Publication date: 2012-12-05
Anticipated expiration: 2022-01-20

Abstract

The utility model relates to a corrugated pipe consisting of a U-shaped framework. The strength of a large-caliber corrugated pipe can be effectively improved, and the elasticity of the large-caliber corrugated pipe can be fundamentally improved. The corrugated pipe comprises a corrugated pipe body, wherein the section of a framework in a reinforcing rib spirally wound on the corrugated pipe body has a U shape; and the periphery of the U shape is wrapped by a plastic layer. The corrugated pipe has the advantages that by arranging the U-shaped framework, the whole compressive strength and bearing strength of the corrugated pipe are greatly improved, and the change of extending and retracting amount of the corrugated pipe due to temperature is limited to the greatest extent, so that the adaptability of the corrugated pipe to different temperature is further improved, and the phenomena that the joints of the manufactured corrugated pipe are separated, and fluid is run off are avoided.

Description

A kind of bellows that constitutes by the U-shaped skeleton

Technical field

The utility model relates to a kind ofly can not only improve heavy caliber bellows intensity effectively, and can make the elasticity of heavy caliber bellows obtain a kind of bellows that is made up of the U-shaped skeleton that essence improves, and belongs to bellows and makes the field.

Background technique

CN201078525Y, title " socket joint electric smelting jointing type steel band reinforced polyethylene spiral ripple pipe ", it is used to solve the problem of easy seepage of steel band reinforced polyethylene spiral ripple pipe connection interface and poor reliability.Socket joint electric smelting jointing type steel band reinforced polyethylene spiral ripple pipe; Be the metal frame that twines to be fixed on the inner layer polyethylene with outer layer polyethylene; Particularly an end of bellows is provided with socket, and the other end of bellows is provided with bellmouth, imbeds a circle electric heating element on the bellmouth inwall and forms.Adopt this socket joint electric smelting jointing type steel band reinforced polyethylene spiral ripple pipe, can be widely used in the connection construction of plastic tube.Its deficiency: the one, metal frame is the outer structure of taking off, and what form with inner layer polyethylene is that the line face contact, rather than face contacts; Not only plyability is poor; And under the effect of external force, metal frame is prone to take off mobile outward, causes inner layer polyethylene is destroyed; The quality of direct shadow pipe matter, even cause inner layer polyethylene damaged; The 2nd, support strength is low, because metal frame is the outer structure of taking off, outwards move its metal frame both sides of external pressure, not only causes the layering of metal frame and inner layer polyethylene, and cause the direct reduction of inner layer polyethylene intensity; The 3rd, because outer layer polyethylene and metal frame are two kinds of material different, had nothing in common with each other by its coefficient that expands with heat and contract with cold of Influence of Temperature, therefore stratification in use takes place inevitably, cause bellows intensity sharply to descend, bellows caves in.

The model utility content

Purpose of design: avoid the deficiency in the background technique, design and a kind ofly can not only improve heavy caliber bellows intensity effectively, and can make the elasticity of heavy caliber bellows obtain a kind of bellows that constitutes by the U-shaped skeleton that essence improves.

Design proposal: in order to realize above-mentioned purpose of design.The utility model is on structural design, and the cross section of skeleton is U font structure Design in the stiffening rib, is the major technique characteristic of the utility model.The purpose of doing like this is: because U font skeleton can improve the intensity of stiffening rib effectively, when molten plastic and U-shaped skeleton compound tense, the plastics of its fusion and the welding of bellows tube wall are one, make the intensity of bellows pipe shaft obtain the raising of essence.

Technological scheme: a kind of bellows that constitutes by the U-shaped skeleton, it comprises bellows, the cross section that helical disk is entangled in skeleton in the bellows stiffening rib on one's body is U font structure, and is wrapped up by plastic layer around the U font.

The utility model is compared with background technique; The design of U-shaped skeleton; Entire compression, the bearing strength of bellows have not only greatly been improved; And retrained temperature to greatest extent to the extending amount variation that bellows caused, make bellows obtain further raising, thereby avoided the generation that made bellows joint is thrown off, fluid runs the leakage phenomenon the adaptability of different temperatures.

Description of drawings

Fig. 1 is a kind of structural representation of the bellows that is made up of the U-shaped skeleton.

Embodiment

Embodiment 1: with reference to accompanying drawing 1.A kind of bellows that constitutes by the U-shaped skeleton, it comprises bellows 1, the cross section that helical disk is entangled in skeleton in the bellows stiffening rib on one's body is U font structure 3, and is wrapped up by plastic layer 2 around the U font.Said stiffening rib and bellows 1 pipe shaft are melting adhered.Its making method is an existing technology, is not described herein at this.

What need understand is: the detailed text description though above-mentioned mentality of designing to the utility model is contrasted; But these text descriptions; Just the simple text of the utility model mentality of designing is described, rather than to the restriction of the utility model mentality of designing, any combination that does not exceed the utility model mentality of designing; Increase and modification, all fall in the protection domain of the utility model.

Claims

1. bellows that is made up of the U-shaped skeleton, it comprises bellows, it is characterized in that: the cross section that helical disk is entangled in skeleton in the bellows stiffening rib on one's body is U font structure, and is wrapped up by plastic layer around the U font.

2. the bellows that is made up of the U-shaped skeleton according to claim 1 is characterized in that: said stiffening rib and bellows pipe shaft are melting adhered.