KR100581499B1 - The prefabricated scaffolding system - Google Patents

Abstract

The present invention relates to a work platform up and down device in a prefabricated scaffolding system for external inspection and repair of a spherical tank, and in particular, after a separate work platform up and down device is installed in a prefabricated scaffolding system, a worker is moved by the work platform up and down device. By allowing the platform to move up and down, the outside of the old tank can be inspected and repaired more efficiently.

Worktable

Description

Prefabricated scaffolding system for work benches for external inspection and repair of old tanks

1 is a front configuration diagram showing a state in which the worktable rotating device according to the present invention is installed in a scaffolding system;

Figure 2 is an enlarged view of the main part showing a state in which the worktable rotating device according to the present invention installed in the scaffolding system,

3 is a plan view of a work bench according to the present invention;

(Explanation of symbols for the main parts of the drawing)

100; Turntable 120,130; Bracket

200; First pulley 210; 2nd pulley

300; Wheel 400; Moving wire

500; Drive motor 510; winch

A; Spherical tank B; bench

The present invention relates to a work platform for moving up and down in a prefabricated scaffolding system for external inspection and repair of a spherical tank, and in particular, after installing a separate work platform for moving up and down in a prefabricated scaffolding system, The present invention relates to a platform for moving up and down in a prefabricated scaffolding system for external inspection and repair of an old tank, which enables more efficient inspection and repair of the outside of an old tank by enabling vertical movement of a boarded work platform.

In general, a tank for storing a fluid such as a high pressure gas is formed in a spherical shape by forming a steel plate of the unit, and the upper and lower ends are provided with a manhole for the operator to enter and exit during inspection and repair. Since the safety of the old tank is the most important factor, scaffolds are installed inside and outside the old tanks according to Article 17 of the High Pressure Gas Safety Management Act, Article 36 (2) of the Industrial Safety and Health Act, and other facilities. It is installed and checked and repaired by the operator through scaffolding.

This scaffolding has the advantage of being able to carry out the inspection and repair work in the old tank, but since the scaffold is manually installed through skilled workers in the old tank, it takes not only a lot of installation work but also the age group of skilled workers in the 3D industry. This is aging.

Therefore, not only the work efficiency is greatly reduced, but also no safety device is provided, so there is always a risk of safety accidents due to disasters such as falling during work, and it takes a long time to dismantle the scaffold after inspection and maintenance work is completed. As a result, various problems of manufacturing and inspection costs have been raised.

 Accordingly, an object of the present invention is to devise in view of the above-described conventional problems, and after installing a separate work platform up and down device in the prefabricated scaffolding system, the up and down movement of the work platform occupied by the worker by this work platform up and down device In order to enable more efficient inspection and repair of the outside of the old tank, it is to provide a work platform up and down device in the prefabricated scaffolding system for the external inspection and repair of the old tank.

The present invention as a means for achieving the above object, the first pulley and the second pulley which is fastened and fixed to the bracket formed in the middle of the upper frame and the bracket formed in the middle of the frame frame having a constant height on the turntable and ,

One end is connected to the first pulley and the second pulley and the other end is wound on the winch to move or unwind and wind,

A drive motor for driving the winch to move the worktable up and down by unwinding or winding the wire;

Each of the left and right sides of the workbench and the contact with the spherical tank outer circumference is composed of a wheel to guide the workbench up and down as a basic feature of the technical configuration.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a front configuration diagram showing a state in which the worktable rotating device is installed in the scaffolding system according to the present invention, Figure 2 is an enlarged view of the main portion showing a state in which the worktable rotating device is installed in the scaffolding system, Figure 3 A plan view of a workbench according to the present invention.

The present invention is required to move the workbench up and down in the old tank in order to effectively carry out the external tank inspection and maintenance work. To this end, as shown in FIGS. 1 and 3, the turntable 100, the first pulley 200 and the second pulley 210, the moving wire 400, the driving motor 500, and the upper portion of the spherical tank A are provided. Winch 510 is mobilized by default.

The first pulley 200 is connected and fixed to the bracket 120 protruding from the middle of the skeleton frame 110 formed to have a predetermined height on the top of the turntable 100, the second pulley 210 is a bracket formed in the middle of the top of the workbench Is fastened to each of the 130, the first pulley 200 and the second pulley 210 in a state in close proximity to each other work table (B) is located on the top of the spherical tank (A), the first pulley 200 and the second In a state in which the pulleys 210 are separated from each other, the work table B is configured to be positioned at the bottom of the spherical tank A.

One end of the moving wire 400 is organically connected to the first pulley 200 and the second pulley 210 and the other end is wound around the winch 510 to perform a role of loosening or winding.

The drive motor 500 drives the winch 510 to impart a driving force to the winch 510 so that the work table B can be moved up and down by releasing or winding the moving wire 400. Since the circuit configuration of the driving motor 500 is generally used, the detailed description thereof will be omitted.

The wheels 300 are formed to protrude on the left and right sides of the workbench B and are in contact with the outer circumferential surface of the spherical tank A so that the workbench is smoothly guided up and down without being in contact with the spherical tank.

Workbench vertical movement device of the present invention configured as described above performs the inspection and repair work outside the spherical tank (A) while moving the workbench up and down in the state that the operator boarded on the workbench (B).

More specifically, since the moving wire 400 is wound around the winch 510 in the state shown in FIG. 2, the first pulley 200 and the second pulley 210 are close to each other, and the work table B is It is located on top of the spherical tank (A). In the above state, the outside of the old tank is inspected and repaired.

When the work is completed, when power is applied to the drive motor 500 to lower the work table B to the next work position, the winch 510 rotates, and the moving wire 400 is released by the rotating winch 510. Accordingly, the first pulley 200 and the second pulley 210 are to move down the work table (B) while moving away from each other. At this time, the first pulley 200 is fixed to the turntable 100 side, the second pulley 210 is lowered with the work table (B).

Contrary to the above, when the driving motor 500 is rotated in reverse, the moving wire 400 is wound around the winch 510 so that the first pulley 200 and the second pulley 210 move closer to each other to raise the work table B. Let's go.

On the other hand, the workbench B that moves up and down in the spherical tank A is rotated while the wheel 300 is in contact with the spherical tank outer circumferential surface can be safely raised or lowered without contact with the spherical tank.

As described above, according to the present invention, a separate work platform vertical movement device is installed in the prefabricated scaffolding system, and the work platform occupied by the operator by the work platform vertical movement device can be moved up and down more efficiently than the old tank outside. It will be effective to inspect and repair.

The present invention has been described above with reference to specific preferred embodiments, but the present invention is not limited to the above embodiments and various changes and modifications may be made by those skilled in the art without departing from the gist of the present invention. Make sure you can.

Claims (1)

A first pulley 200 fastened and fixed to the bracket 120 formed in the middle of the frame frame 110 formed at a predetermined height on the top of the turntable 100 and the bracket 130 formed in the middle of the upper end of the work table B, and A second pulley 210; A moving wire 400 having one end connected to the first pulley 200 and the second pulley 210 and the other end wound around the winch 510 to be unwound or wound; A drive motor 500 for driving the winch 510 to move the work wire B up and down by releasing or winding the moving wire 400; Prefabricated scaffolding for external inspection and repair of the old tank, characterized in that the wheel 300 is formed on the left and right sides of the workbench (B) and contact with the outer peripheral surface of the spherical tank (A) to guide the workbench (B) up and down. Workbench up and down in the system.

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