KR100564721B1 - Work party up-and- down rotary apparatus in the prefabricated scaffolding system - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an up / down rotating device for a work platform in an internal inspection and repair of a spherical tank, and in particular, after installing a rotating device in an assembled scaffold system that is installed and installed in an old tank, an operator rides on the work. One workbench rotates up and down to efficiently inspect and repair the inside of an older tank.

Worktable

Description

Work party up-and-down rotary apparatus in the prefabricated scaffolding system}

1 is a front view showing a state in which the work table up and down rotation apparatus according to the present invention is installed in the scaffolding system,

Figure 2 is a plan view showing a state in which the work platform up and down rotation apparatus according to the present invention is installed in a scaffolding system

Figure 3 is an enlarged front view of the main portion of the work table up and down rotation apparatus according to the present invention.

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

100; Shaft 200; Base frame 300; Moving frame

310; Working table 320; Hinge 400; 1st Rope Pulley

400a; Second rope pulley 410,410a; Connecting rod 420,420a; Fixture

430,430a; Large pulleys 440,440a; Intermediate pulley 450,450a; Small pulley

500; Rope 600,610; Hook 700; Drive motor

710; Bobbin

The present invention relates to a work platform up and down rotating apparatus in the prefabricated scaffolding system for the internal inspection and repair of a spherical tank, and in particular, after the installation of a separate rotating device in the prefabricated scaffolding system, the work platform occupied by the worker is moved up and down. The present invention relates to a workbench up and down rotation apparatus in a prefabricated scaffolding system for inspecting and repairing an old tank, which enables the inside of the old tank to be inspected and repaired efficiently.

In general, a tank for storing a fluid such as a high pressure gas is formed into 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 safety is the most important factor of these old tanks, scaffolds should be installed inside 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. At the same time, the scaffold will be inspected and repaired by the operator.

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 the inspection and repair 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 rotating device in the prefabricated scaffolding system, the work platform occupied by the operator can be rotated up and down efficiently by the rotating device. The present invention provides an up-and-down rotation device for a work platform in an assembled scaffolding system for inspecting and repairing an old tank.

The present invention as a means for achieving the above object, the base frame is integrally fastened and fixed in the middle of the shaft vertically installed in the spherical tank,

It is formed with a predetermined length on the left and right sides of the base frame and one end is hinged in the middle of the base frame and the other end is formed with a work platform for the user to move and move up and down around the hinge according to the working position,

A first rope pulley and a second rope pulley, each of which is fastened and fixed independently to the hooks formed on the outer side of the moving frame and the shaft top, respectively, and close to and away from each other according to the upper and lower positions of the work table;

One end is connected to the bobbin and the other end is organically connected to the first and second rope pulleys,

The technical feature of the technical configuration is that the rope consists of a drive motor to be rotated up and down to the working position while winding or unwinding the rope to the bobbin.

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

1 is a front view showing a work platform up and down rotation apparatus according to the present invention installed in the scaffolding system, Figure 2 is a plan view showing a work table up and down rotation apparatus installed in the scaffolding system, Figure 3 is a present invention This is an enlarged front view of the main part of the worktable vertical rotation device according to the above.

The prefabricated scaffolding system of the present invention also has a configuration in which the interior of the spherical tank is inspected and repaired in the state assembled in the spherical tank B, and disassembled in the spherical tank B after the work is completed.

In the scaffolding system A having such a configuration, it is required to rotate up and down in order to inspect and repair the inside of the old tank B in a state where the worker is on the workbench.

To this end, as shown in FIGS. 1 to 3, a work table vertical rotation device is mobilized. The base frame 200 is integrally fastened and fixed to the middle of the shaft 100 vertically installed inside the spherical tank B, and the base frame. Moving frame 300 to rotate up and down about 200, the first and second rope pulleys 400 and 400a for vertically rotating the moving frame 300, and the first and second rope pulleys 400 The bobbin 710, the rope 500, and the drive motor 700 for operating the 400a are basically mobilized.

The moving frame 300 is formed to have a predetermined length on the left and right sides of the base frame 200, one end is coupled to each other in the middle of the base frame so as to rotate up and down about the base frame 200, the other end The work bench 310 is formed to allow the user to inspect and repair the inside of the old tank (B).

The first rope pulley 400 and the second rope pulley 400a are independently fastened and fixed to the hooks 600 and 610 respectively formed on the outer side of the moving frame 300 and the top of the shaft 100. The first rope pulley 400 and the second rope pulley 400a are connected to each other according to the working position of the 310, and the second rope pulley 400a has a predetermined length with the connecting rods 410 and 410a, and the connecting rod 410. Large pulleys 430, 430a, intermediate pulleys 440, 440a, and small pulleys 450, 450a, which are positioned inside the 410a and are rotatably installed at regular intervals, and the connecting table 410. The first rope pulley 400 is formed on one side of the hook 410 and the second rope pulley 400a is composed of fixing parts 420 and 420a respectively fixed to the hook 600. .

 The first rope pulley 400 and the second rope pulley 400a close to each other and away from each other, one end of the rope 500 is rotated up and down is connected to the bobbin and the other end is the first rope It is organically connected to the pulley 400 and the second rope pulley 400a.

To explain this in more detail, one end of the rope 500 is connected and fixed to the bobbin 710 side driven by the driving motor 700, and the other end of the rope 500 has a large pulley 430 and a second rope pulley of the first rope pulley 400. Large pulley 430a of the 400a, the middle pulley 440 of the first rope pulley, the middle pulley 440a of the second rope pulley, the small pulley 450 of the first rope pulley, the small pulley of the second rope pulley While passing through (450a) in turn is fixed to the connection end 410 end of the first rope pulley (400).

Here, the driving motor 700 is used as a driving means for rotating the bobbin 710, but is not limited thereto. If the bobbin can be rotated, a separate manual handle is formed on the bobbin side, and a rope is formed by the manual handle. It is possible to wind or loosen the bobbin.

In order to use the present invention configured as described above, as shown in FIG. 1, the work bench 310 is positioned at the bottom of the spherical tank B, and the worker rides on the work bench 310 while the moving frame 300 is lowered. When the inspection and repair in the spherical tank (B) in the above state is completed, power is applied to the drive motor 700 to raise the work platform 310 to the next working position.

That is, when power is applied to the driving motor 700, the bobbin 710 rotates, and when the rope 500 is wound around the rotating bobbin 710, the first rope pulley 400 and the second rope pulley 400a are rotated. Get closer to each other. At this time, the moving frame 300 is rotated upward with respect to the hinge 320 to raise the work table 310 to the position to work.

When the worktable 310 is positioned at the upper end of the old tank while the inspection and maintenance work in the old tank B through the above-described method, the first rope pulley 400 and the second rope pulley 400a are brought into close proximity. , The rope 500 is in a state that is wound a lot on the bobbin 710. Contrary to the above, when the driving motor 700 reversely rotates, the bobbin 710 slowly loosens the rope 500, and the first rope pulley 400 and the second rope pulley 410 move away from each other, thereby moving the work bench 310. It will be descended.

As described above, according to the present invention, since the separate scaffolding system is installed in the assembled scaffolding system, the work platform on which the operator boards rotates up and down, so that the inside of the old tank can be inspected and repaired efficiently. This is the effect.

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 (2)

delete A base frame 200 which is integrally fastened and fixed in the middle of the shaft 100 installed vertically inside the spherical tank B; It is formed with a predetermined length on the left and right sides of the base frame 200, one end is coupled to the hinge 320 in the middle of the base frame 200, the other end of the work platform 310, the user boards the moving frame 300; First ropes that are independently fastened and fixed to the hooks 600 and 610 respectively formed on the outer side of the moving frame 300 and the upper end of the shaft 100 and close to each other according to the working position of the worktable 600. A pulley 400 and a second rope pulley 400a; A rope 500 having one end connected to the bobbin 710 and the other end organically connected to the first rope pulley 400 and the second rope pulley 400a; Prefabricated scaffolding for the internal inspection and repair of the old tank, characterized in that consisting of a drive motor 700 to the workbench 310 is rotated up and down to the working position while winding or loosening the rope 500 to the bobbin 710. In the above system up and down rotating apparatus, the first rope pulley (400) and the second rope pulley (400a) is a connecting rod (410, 410a) having a constant length; Large pulleys 430, 430a, intermediate pulleys 440, 440a, and small pulleys 450, 450a which are positioned inside the connecting table 410, 410a and are rotatably installed at regular intervals; Fixing portions 420 and 420a which are formed at one side of the connecting table 410 and 410a to fix the first rope pulley 400 and the second rope pulley 400a to the respective hooks 600 and 610. Workbench vertical rotation device in the assembled scaffolding system for the internal inspection and repair of the old tank, characterized in that consisting of.

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