CN2184732Y

CN2184732Y - Special slot and hole steel pipe for buckle-free scaffold

Info

Publication number: CN2184732Y
Application number: CN 94226114
Authority: CN
Inventors: 任华国
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-01-24
Filing date: 1994-01-24
Publication date: 1994-12-07
Anticipated expiration: 2004-01-24

Abstract

The utility model relates to a special slot and hole steel pipe for buckle-free scaffolds, replacing the existing common steel pipes to be used as the rod of a scaffold. Because a slotted hole (2) is arranged on a steel pipe, which provide conditions for the direct connection of the rod; the slotted hole steel pipe is formed by that firstly, an elongated slotted hole is preformed on sheet material for producing steel pipes according to a certain requirement, and then a seamed steel pipe with a slotted hole is formed according to the traditional method. The utility model provides a scheme that a slotted hole is used to cause the rod to be directly connected without the traditional connected fasteners.

Description

Special slot and hole steel pipe for buckle-free scaffold

The utility model relates to construction work scaffold field.

The building operations scaffold is mostly made (at present domestic general be the steel pipe of 48mm-50mm) with common steel tube, and this scaffold mainly is to utilize fastener that montant and cross bar are linked together.Fact proved that this traditional scaffold has many advantages, if any after the fastener, random assembly unit scaffold.But it also has some shortcomings, and for example fastener quantity is big, is difficult to management, loses easily; And operation is more when assembly unit.

At above-mentioned situation, the utility model proposes a kind of novel steel pipe and replace traditional steel pipe, and the characteristics of utilizing novel steel tube are with the no fastener scaffold technology of development.Therefore, the purpose of this utility model provides a kind of steel pipe that helps not having the development of fastener scaffold.

Embodiment of the present utility model is to open longilineal slotted eye according to different requirements on the flat metal plate of raw material of making steel pipe, produces slotted eye steel metal plate by being manufactured with seam steel pipe manufacturing method then.

Details are as follows in conjunction with the accompanying drawings in the utility model detailed description, wherein:

Fig. 1 is a slotted eye steel pipe schematic diagram;

Fig. 2 is used as the embodiment schematic diagram of no fastener scaffold for the slotted eye steel pipe.

As seen from Figure 1, the slotted eye steel pipe is to have leptosomatic slotted eye (2) on common steel tube, the layout of this slotted eye on steel pipe should be to be divided into four rows along steel pipe length, per two rows' slotted eye should be at the two ends of a diameter, and the diameter line in above-mentioned corresponding two emissions groove holes should be vertical mutually, guaranteed the installation of scaffold like this, in addition on the steel pipe the big I of slotted eye according to the decision of the diameter of steel pipe.With the steel pipe of the present widely used 48mm-50mm of China, the slotted eye optimum size is 40mm * 8mm.Spacing between slotted eye is 2m-5m.Can on the flat metal plate of raw material of steel pipe, bore slotted eye in advance by design earlier when making the slotted eye steel pipe, make the seamed steel pipe that has slotted eye by traditional method then.

Owing on steel pipe, be drilled with slotted eye, therefore can when scaffold is constructed, utilize the whole bag of tricks that another rod member is buckled and hang in the slotted eye (2).Fig. 2 represents the embodiment that this button is hung.A slotted eye steel pipe (1) is as the montant of scaffold, and another root slotted eye steel pipe is cut into the inclined-plane in the end of cross bar and welds a flat metal plate (3) as scaffold cross bar, and flat metal plate (3) has the hook (4) in an affixed hole, middle band garden.Hook (4) is buckled into the slotted eye of montant, the key metal plate (5) that trapezoidal centre is had a slotted eye (6) places between the steel metal plate (3) of montant outer wall and cross bar then, pass the circular hole of hook (4) and the slotted eye (6) of key metal plate with screw rod (7), perpendicular, cross bar are linked up, tighten up screw rod after utilizing the inclined-plane to compress key metal plate (5) again, perpendicular horizontal two bars just can tightly fasten.So not only laborsaving but also easily the scaffold site operation has been simplified, and saved the scaffold clasp of using and link loose mail.

The utility model only proposes a kind of job practices of utilizing the slotted eye steel pipe, but also provides Development Prospect for the scaffold that develops no connecting piece.

Claims

1, the special-purpose slotted eye steel pipe of a kind of no fastener scaffold, the slotted eye that has on the steel pipe of scaffold for linking usefulness being used as that is characterized as of the present utility model.

2, by the special-purpose slotted eye steel pipe of the described fastener scaffold of claim 1, it is characterized by along steel pipe length and have four emissions groove holes, per two rows' slotted eyes should be at diameter two ends of steel pipe, and corresponding two rows' diameters should be vertical mutually.