CN201106720Y

CN201106720Y - Enhanced type backbone steel plastic composite pipe

Info

Publication number: CN201106720Y
Application number: CNU2007203115248U
Authority: CN
Inventors: 蔡海华
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-12-08
Filing date: 2007-12-08
Publication date: 2008-08-27
Anticipated expiration: 2017-12-08

Abstract

The utility model relates to a reinforced type framework steel-plastic compound tube which is composed of a middle-layer steel tube that is coated by inner-layer plastic and outer-layer plastic, wherein, the surface of the steel tube is provided with perforating holes and concave points that are arranged among the perforating holes. The reinforced type framework steel-plastic compound tube utilizes the concave points to change the structural capability of the steel tube and has the function of a reinforced rib, thereby leading that the bending resistance, the strength and the rigidity and so on of the steel tube are enhanced and improved largely; at the same time, the reinforced type framework steel-plastic compound tube utilizes the perforating holes of the steel tube to lead that the steel tube, the inner-layer plastic and the outer-layer plastic are sealed and combined together firmly, thereby effectively avoiding the situations of the separation and the slip between the steel tube and the plastic because of the stress function. The reinforced type framework steel-plastic compound tube has the advantages of high strength, good rigidity, light weight, compact resistance, erosion resistance, small pressure losing, firm steel-plastic combination and sealing, low cost, good burning resistance and heat preservation and effective reduction of liquid compact noise and so on, thereby being worthy of being popularized and applied.

Description

A kind of enhanced type framework steel plastic compound tube

Technical field: the utility model relates to a kind of composite metal-plastic pipe, particularly a kind of steel-plastic composite pipe.

Background technique: current because various composite pipes have good usability and characteristics such as quick and easy for installation, be widely used in worker, agricultural and live in as conveyance conduit, as aluminium-plastic composite pipe, steel-plastic composite pipe and other composite metal-plastic pipe etc.And steel-plastic composite pipe since advantage such as its intensity height, good rigidly, corrosion-resistant, the pressure loss is little, shock resistance and very popular be particularly suitable for doing bigbore pipe and use.But it is certain not enough that steel-plastic composite pipe structurally also exists: (1) steel mesh framework composite tube and steel-wire carcass composite pipe intensity are on the low side, rigidity is not fine, and the application area of steel-plastic composite pipe is restricted; (2) hole pattern steel band framework steel plastic compound tube is owing to have the hole that drills through in a large number on the steel pipe, and its intensity and rigidity also reduce greatly, must remedy this loss by increasing thickness of steel pipe, causes pipe heavily to increase, and cost increases.

Summary of the invention: the purpose of this utility model is to overcome above-mentioned shortcoming and a kind of enhanced type framework steel plastic compound tube that can strengthen its intensity and rigidity is provided.

The purpose of this utility model can be achieved as follows: this enhanced type framework steel plastic compound tube, and mainly coat the middle level steel pipe and constitute by inner plastic and outer layer plastic, there is perforation on the surface of middle level steel pipe, and the surface of described middle level steel pipe also is provided with concave point between described perforation.

As further improvement of the utility model: the concave point of this enhanced type framework steel plastic compound tube and adjacent perforation are equidistant.

As further improvement of the utility model: the middle level steel pipe internal-surface of this enhanced type framework steel plastic compound tube and outer surface all have one deck zinc-plated.

As further improvement of the utility model: have one deck hot melt adhesive bonding between the internal surface of the middle level steel pipe of this enhanced type framework steel plastic compound tube and the inner plastic and between the outer surface of middle level steel pipe and the outer layer plastic.

The utility model is by adding concave point on the hole pattern shape steel pipe of tape punching, concave point has changed the structural behaviour of steel pipe, makes it be wrinkle shape, has the effect of stiffening rib, thereby flex resistance, intensity, rigidity of making steel pipe etc. are strengthened greatly and are improved, and particularly the external pressure strength is strengthened greatly.Simultaneously, utilize the perforation of steel pipe that steel pipe and the plastic seal of inside and outside layer are combined securely, avoid effectively that stress causes separating between steel pipe and the plastics, the situation of slippage takes place.Therefore, the utility model steel-plastic composite pipe have intensity height, good rigidly, in light weight, shock resistance, corrosion-resistant, the pressure loss is little, steel moulds that combination seal is firm, cost is low, good fire resistance and heat insulating ability are arranged and effectively weaken advantages such as hydraulic shock noise, therefore, be worthy of popularization very much.

Description of drawings:

Fig. 1 is the structural representation of the utility model enhanced type framework steel plastic compound tube;

Fig. 2 is the A-A sectional drawing of Fig. 1;

Fig. 3 is the B-B sectional drawing of Fig. 1.

Embodiment: the present invention is described in further detail below in conjunction with accompanying drawing:

With reference to figure 1, Fig. 2 and Fig. 3, enhanced type framework steel plastic compound tube of the present utility model as shown in Figure 1 coats middle level steel pipe 3 by inner plastic 1 and outer layer plastic 2 and constitutes, the surface distributed of this middle level steel pipe 3 has perforation 4, the surface of middle level steel pipe 3 also is distributed with concave point 5 simultaneously, and concave point 5 is between perforation 4.Concave point 5 preferably be distributed in adjacent perforated 4 equidistant positions on, make the structural behaviour of middle level steel pipe 3 reach best.Perforation 4 is holes of passing middle level steel pipe 3, and as shown in Figure 2, preferably (mutual spacing is even) is distributed on the surface of middle level steel pipe 3 (certainly, also can be with interval but be distributed in unevenly on the surface of middle level steel pipe 3) with interval equably.Concave point 5 can form by methods such as punching press or extruding, and as shown in Figure 3, its one side at middle level steel pipe 3 is dented another side and then is protruding next, and vice versa.The size of the size of concave point 5 and depth visual middle level steel pipe 3 and thickness and decide.

From as can be known above-mentioned, the inner plastic 1 of enhanced type framework steel plastic compound tube of the present utility model is that plastics enter outside middle level steel pipe 3 in it and form, the bonding that is interweaved between inner plastic 1, outer layer plastic 2 and the middle level steel pipe 3 is interlocked, and very sealing combines securely.

In order to strengthen the anticorrosive property of middle level steel pipe 3, the internal surface of middle level steel pipe 3 and outer surface also have one deck zinc-plated.Simultaneously, more firm in order to strengthen combine between middle level steel pipe 3 and the inside and outside layer plastics, make the steel-plastic composite pipe performance more excellent, reaching between the internal surface of middle level steel pipe 3 and the inner plastic 1 between the outer surface of middle level steel pipe 3 and the outer layer plastic 2 has one deck hot melt adhesive bonding.

In sum, the utility model steel-plastics composite pipe utilizes the concave point that adds on the middle level steel pipe 3 5 form reinforced skeleton structure, make this multiple tube have intensity height, good rigidly, weight Gently, shock resistance, corrosion-resistant, the pressure loss is little, steel moulds that combination seal is firm, cost is low, have Good fire resistance and heat insulating ability and effectively weaken the characteristics such as hydraulic shock noise.

Claims

1. enhanced type framework steel plastic compound tube, mainly coating middle level steel pipe (3) by inner plastic (1) and outer layer plastic (2) constitutes, there is perforation (4) on the surface of middle level steel pipe (3), it is characterized in that: the surface of described middle level steel pipe (3) also is provided with concave point (5) and is positioned between the described perforation (4).

2, enhanced type framework steel plastic compound tube according to claim 1 is characterized in that: described concave point (5) is equidistant with adjacent perforation (4).

3, enhanced type framework steel plastic compound tube according to claim 1 and 2 is characterized in that: described middle level steel pipe (3) internal surface and outer surface all have one deck zinc-plated.

4, enhanced type framework steel plastic compound tube according to claim 1 and 2 is characterized in that: have one deck hot melt adhesive bonding between the internal surface of described middle level steel pipe (3) and the inner plastic (1) and between the outer surface of middle level steel pipe (3) and the outer layer plastic (2).