CN2628847Y

CN2628847Y - Bamboo joint type steel pipe

Info

Publication number: CN2628847Y
Application number: CN 03249207
Authority: CN
Inventors: 潘维周
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-06-24
Filing date: 2003-06-24
Publication date: 2004-07-28
Anticipated expiration: 2013-06-24

Abstract

The utility model is provides a knotted steel pipe, which is characterized in that the utility model is composed of more than two unit pipes 1. The unit pipe 1 is composed of an outer pipe 2 and an internal lining 3 positioned in the intracavity of the outer pipe 2. The outer pipe 2 is composed of three thin rolled steel of the same arc length connected head-to-tail, and the cross section of the outer pipe is a circle. The internal lining 3 is composed of three thin rolled steel connected head-to-tail, and the cross section of the internal lining is an equilateral triangle. Welded connection is applied between the unit pipes 1, the outer pipe 2 and the internal lining 3, and between the internal linings 3. The utility model can be applied in the environments requiring low intensity, light (the lighter the better) weight and excellent rigidity.

Description

The bamboo joint type steel pipe

One, technical field:

The utility model relates to a kind of steel pipe, the bamboo joint type steel pipe that especially a kind of wall is thin, in light weight, have better rigidity.

Two, background technique:

At present, the steel pipe that people use mostly is round steel pipe, when under all higher environmental conditions of intensity, rigidity requirement, generally can only increase the wall thickness of tube material.Yet, sometimes, require employed steel pipe weight light more good more again, but require steel pipe that rigidity is preferably arranged, often can not be met simultaneously between the two.

Three, summary of the invention:

The utility model provides the bamboo joint type steel pipe that a kind of wall is thin, in light weight, better rigidity is arranged.

The utility model is achieved in that a kind of bamboo joint type steel pipe, it is characterized in that: it is made of the unit pipe more than two, described unit pipe is made up of outer tube and the liner that is positioned at outer tube bore, outer tube connect from beginning to end by the thin-walled steel of arc length such as three and cross section rounded, liner is connected from beginning to end by three blocks of thin-walled steel and cross section is equilateral triangle, between each unit pipe, between outer tube and the liner and between liner and the liner all by being welded to connect.

The utility model has the advantages that: wall is thin, in light weight, has saved material, and better rigidity is arranged, and it is high to be used in requirement of strength, but requires weight light more good more, requires to have the environment of better rigidity again.

Four, description of drawings:

Fig. 1 is the utility model plan view;

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

Five, specific embodiment:

Please see Figure 1, Fig. 2: the utility model is made of 5 root unit pipes 1, unit pipe 1 is made up of outer tube (2) and the liner 3 that is positioned at outer tube 2 inner chambers, outer tube 2 connect from beginning to end by the thin-walled steel of arc length such as three and cross section rounded, liner 3 is connected from beginning to end by three blocks of thin-walled steel and cross section is equilateral triangle, between each unit pipe 1, between outer tube 2 and the liner 3 and between liner 3 and the liner 3 all by being welded to connect.

Can find out from Fig. 1, Fig. 2: between each unit pipe 1 of the present utility model, laterally be provided with circular tube coupling 4 by welding.

Also can further find out from Fig. 1, Fig. 2: the outer surface at the utility model outer tube 2 is coated with reinforcement tube 5, reinforcement tube 5 connect from beginning to end by the thin-walled steel of arc length such as three and cross section rounded, and cover whole steel pipe.

The utility model adopts the thin-walled steel, steel pipe in light weight, the steel pipe inner chamber is welded with the liner 3 that cross section is an equilateral triangle, circular tube coupling 4 is set between each unit pipe 1 and is coated with reinforcement tube 5 at the outer surface of outer tube 2, it is high to be used in requirement of strength, but require in light weightly, require to have the environment of better rigidity again.

Claims

1. bamboo joint type steel pipe, it is characterized in that: it is made of the unit pipe more than two (1), described unit pipe (1) is made up of outer tube (2) and the liner (3) that is positioned at outer tube (2) inner chamber, outer tube (2) connect from beginning to end by the thin-walled steel of arc length such as three and cross section rounded, liner (3) is connected from beginning to end by three blocks of thin-walled steel and cross section is equilateral triangle, between each unit pipe (1), between outer tube (2) and the liner (3) and between liner (3) and the liner (3) all by being welded to connect.

2. bamboo joint type steel pipe according to claim 1 is characterized in that: laterally be provided with circular tube coupling (4) by welding between each unit pipe (1).

3. bamboo joint type steel pipe according to claim 1 is characterized in that: the outer surface at outer tube (2) is coated with reinforcement tube (5), reinforcement tube (5) connect from beginning to end by the thin-walled steel of arc length such as three and cross section rounded, and cover whole steel pipe.