CN2212034Y

CN2212034Y - Steel pipe for scaffold

Info

Publication number: CN2212034Y
Application number: CN 94229596
Authority: CN
Inventors: 陈嘉丹
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-09-16
Filing date: 1994-09-16
Publication date: 1995-11-08
Anticipated expiration: 2004-09-16

Abstract

The utility model provides a steel pipe for scaffolds, used for construction, metallurgy, coal, water conservancy, etc. The utility model is characterized in that the contour periphery of the steel pipe is composed of straight line segments and/or curve segments; the pipe end of the steel pipe is provided with a closure for enclosing the cavity of the steel pipe. The utility model has the advantages of low cost, high carrying capacity, favorable antiseptic effect and long service life, and the distribution of material is corresponding to the sizes of the stress.

Description

Steel pipe for scaffold

The utility model relates to a kind ofly be used for building, the scaffold steel pipe of each engineering such as chemical industry, metallurgy, coal, water conservancy.

Be with movable fastener or attachment fastener steel pipe to be fixed and formed scaffold, derrick, template, support etc. in engineering.Steel pipe is formed behind the structural member such as scaffold when bearing load, steel pipe each to stressed be unequal.And its shape of cross section of the scaffolding steel pipe of prior art is circular, has therefore formed unbalance stress etc. and distribution of material is impartial unreasonable situation, thereby waste material increases cost.

It is perishable when scaffold uses in the open.Existing scaffold does not seal with its inner chamber of steel pipe.Though the tube cavity that has has adopted method for anticorrosion treatment such as japanning, plating,, length little because of pipe diameter is long, to inner chamber painting operations difficulty, easily the holiday lacquer, to tube cavity electroplating cost height and antiseptic effect is still bad, influenced application life.

In view of above reason, the purpose of this utility model is in order to provide a kind of distribution of material and stressed size to adapt, and cost is low, the scaffold steel pipe that supporting capacity is high.Another purpose of the present utility model is in order to solve the anticorrosion problem of steel pipe, to make steel pipe corrosion-proof effective, long service life.

The utility model steel pipe gabarit periphery is made up of (referring to Fig. 2～Fig. 4) straightway and/or curved section.

Above-mentioned steel pipe gabarit peripheral shape can be ellipse or special-shaped oval (referring to Fig. 5).

Above-mentioned steel pipe gabarit peripheral shape can be rectangle or special-shaped rectangle (referring to Fig. 6).

Above-mentioned pipe end has the closure member of inner chamber sealing (referring to Fig. 7～Fig. 9), after the pipe end sealing, substantially do not have corrosion phenomenon through testing,, exchange owing to completely cut off external oxygen even there is water not have interior corrosion-resistant sealed tube, corrosion rate be 1 year 0.000915 millimeter, 1 year is 0.000893 millimeter, keeps this stationary value later on, and rear interior cavity just corroded 0.1 millimeter in 100 years, so cost is low, improve application life.

The steel pipe that the utility model has adopted the gabarit periphery to be made up of straightway and/or curved section adapts distribution of material and stressed size, and cost is low, and the supporting capacity height has adopted the closure member that makes the pipe end sealing, favorable anti-corrosion effect, long service life.

Describe embodiment of the present utility model in detail below in conjunction with accompanying drawing:

Installation site figure when Fig. 1 forms scaffold for the utility model.

Fig. 2 is the schematic diagram that steel pipe gabarit periphery is made up of several straightways.

Fig. 3 is the structural representation that steel pipe gabarit periphery is made up of several curved sections.

Fig. 4 is the structural representation that steel pipe gabarit periphery is made up of several straightways and curved section.

Fig. 5 is that steel pipe gabarit periphery is oval-shaped structural representation.

Fig. 6 is that steel pipe gabarit periphery is special-shaped rectangular configuration schematic diagram.

Fig. 7 is the utility model structural representation of closed at both ends.

Fig. 8 is the I portion enlarged drawing (two ends are sealed with plate) of Fig. 7.

Fig. 9 is the I portion enlarged drawing (two ends are sealed with piece) of Fig. 7.

Referring to Fig. 2～Fig. 6, the gabarit periphery of the utility model steel pipe can be formed or be formed or be made up of several straightways and several curved sections by several curved sections by several straightways.

Installation site figure when Fig. 1 forms scaffold for the utility model.Sequence number 1 is the utility model scaffold steel pipe, and sequence number 2 connects the position for scaffolding steel pipe.Connection between the steel pipe of scaffold can connect as colligation in various manners, and bolt and fastener connect, and socket joint connects, and connects or the like from anchor.

Each is less to stressed difference for the vertical steel pipe of putting of cause, so the steel pipe that can make vertical storing is still for circular, and with the steel pipe of horizontal positioned adopt as shown in Figure 5 gabarit periphery be oval-shaped steel pipe or gabarit peripheral be steel pipe or other steel tubes of special-shaped rectangle as shown in Figure 6.

Fig. 7 is the utility model structural representation of closed at both ends.The shape that closure member can be made the shape of plate 3 as shown in Figure 8 or piece as shown in Figure 94 gets lodged in the two ends of steel pipe with welding or gluing or additive method, make tube cavity sealing and isolate from outer air, thereby it is good to reach frame pipe antiseptic property, the purpose that cost is low.Frame pipe periphery is anticorrosion to be handled with prior art.

Claims

1, scaffold steel pipe is characterized in that described steel pipe gabarit periphery is made up of straightway and/or curved section.

2, scaffold steel pipe as claimed in claim 1 is characterized in that described steel pipe gabarit peripheral shape is for oval or special-shaped oval.

3, scaffold steel pipe as claimed in claim 1 is characterized in that described steel pipe gabarit peripheral shape is rectangle or special-shaped rectangle.

4,, it is characterized in that described pipe end has the closure member with the inner chamber sealing as claim 1 or 2 or 3 described scaffold steel pipes.