JPS5923158Y2 - Work scaffolding equipment for tower-like structures, etc. - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a working scaffolding device for constructing tower-like structures such as the installation of high-voltage power transmission towers, and particularly relates to a working scaffolding device for tower-like structures and the like that has an improved climbing means for the scaffolding unit.

Generally, in this type of scaffolding equipment, the scaffolding unit is supported in a tower with a columnar structure or a truss structure so as to be able to climb. At regular intervals, the lock supports are attached to platforms, while in the case of truss towers, the lock supports are attached to the middle of the horizontal chords of each tier, and in both cases, the lock supports at the required independent locations are used as platforms to support the climbing of the scaffolding unit. Since the tower is designed to receive a load, the large load acts locally and concentrated on the tower as an uneven load.Therefore, the tower structure has to be enlarged to increase its strength, and in addition, As mentioned above, it is extremely uneconomical to perform processing to attach the lock receiver and the stand to the large tower.

Furthermore, as described above, in the conventional device in which the base of the lock receiver is related to the structure and dimensions of the tower, the climbing operation of the scaffolding unit and the setting of the climbing pitch are extremely complicated and workability is poor.

This idea was made in view of the above circumstances, and its purpose is to allow the scaffold unit to climb smoothly at any time without performing any processing on the tower, and to set the climbing pitch arbitrarily and easily. In addition, it is an object of the present invention to provide a working scaffolding device for a tower-like structure or the like, in which the climbing load of a scaffolding unit is received as a vertical load by the entire tower.

A preferred embodiment of this invention will be described below with reference to the drawings.

In each figure, 1 is a tower that is installed upright at a steel tower installation site, and a lock pin rack 2 is hung from the upper end of the tower 1 along the side wall.

This lock pin rack 2 has a rectangular shape that hangs down along both symmetrical wall surfaces of the tower 1, and has a plurality of pin holes 3 (see Fig. 1) drilled at predetermined intervals in the direction along the wall surface. .

A frame-shaped climbing beam 4 is fitted into the tower 1 which suspends such a lock pin rack 2 at its upper end so as to be movable up and down.

A plurality of guide rollers 5 that roll vertically on the outer peripheral wall surface of the tower 1, and a lock pin 6 that can be engaged with and removed from the pin hole 3 of the lock pin rack 2 are attached to the climbing beam 4, respectively. It is.

The lock pin 6 is interlocked with a shifter (double acting cylinder) 7 attached to the climbing beam 4, and is driven by its telescoping operation.

On the climbing beam 4, a roller path frame (hereinafter abbreviated as a path frame in the embodiment) 8, which is fitted to the tower 1 so as to be movable up and down, is supported by a climbing cylinder 9 as a lifting drive means.

The path frame 8 has a planar annular shape as shown in FIG.
As shown in the figure and FIG. 6, it has a plurality of guide rollers 10 that vertically roll the outer peripheral wall surface of the tower 1, and a lock pin 11 that can be engaged with the pin hole 3 of the lock pin rack 2 and can be removed. This lock pin 11 is interlocked with a shifter 12 that drives it forward and backward.

Therefore, the climbing beam 4 and the path frame 8 are fixed to the tower 1 by fitting these locking pins 6.11 into the pin holes 3 of the locking pin rack 2,
Even if one of them is released, since both are connected by the climbing cylinder 9, the tower 1 will not slide down, and the respective lifting and lowering operations will be described later.

The path frame 8 supports a scaffolding unit 13 that is rotatable along its circumferential direction.

This scaffolding unit 13 has rollers 14 on the path frame 8.
．． 15.16 (see Fig. 6) A rotating frame 17 suspended via a rotating frame 17, a sheath boom 18 that can be raised and raised freely with its base end pivotally connected to this, and a telescopic boom 19 that is slidably attached to this sheath boom 18. , a workbench 20 that is attached to the tip of the workbench and can be raised and raised freely, a towing rope 21 that adjusts the workbench 20 in elevation, and a boom elevation cylinder 22 that is suspended between the revolving frame 17 and the sheath boom 18. The structure is as follows.

Next, the operation of the above embodiment will be explained.

Each lock pin 6.11 is located in the pin hole 3 of the lock pin rack 2.
The pass frame 8 and the scaffolding unit 13 are fitted and engaged with each other.
When displacing the scaffolding unit 13 downward from the state where it is held at the top as shown in FIG.
First, only the lower lock pin 6 is pulled out from the pin hole 3 by retracting the shifter 7.

As a result, the climbing beam 4 is suspended by the climbing cylinder 9 and becomes free with respect to the tower 1. Under this condition, by operating the climbing cylinder 9 to extend, the climbing beam 4 is lowered.

At the lowering stop position, move the lower lock pin 6 to the shifter 7.
After the climbing beam 4 is fixed to the tower 1 by being fitted into the pin hole 3 again by the extension operation of Free to Tower 1.

Next, the climbing cylinder 9 is retracted to lower the pass frame 8, and at the descending stop position, the upper locking pin 11 is fitted into the pin hole 3 again by the extension action of the shifter 12, thereby lowering the pass frame 8. It is locked and fixed to the tower 1 at the descending stop position.

In the above cycle, from the state where both the climbing beam 4 and the pass frame 8 are locked to the tower 1 and the climbing cylinder 9 is retracted, the climbing beam 4 is unlocked, the climbing cylinder 9 is extended, and the climbing beam 4 is activated. By repeating the cycle of locking, unlocking the pass frame 8, retracting the climbing cylinder 9, and locking the pass frame 8, the climbing beam 4 and the pass frame 8 alternately and intermittently move downward. , together with these, the scaffolding unit 13 is displaced downward to the required position.

When displacing the scaffolding unit 13 upward from the lowered position, while the climbing beam 4 and the pass frame 8 are both fixed to the tower 1 and the climbing cylinder 9 is retracted, the pass frame 8 is first unlocked, and then the pass frame 8 is unlocked. The climbing cylinder 9 is extended, then the pass frame 8 is locked, the climbing beam 4 is unlocked, the climbing cylinder 9 is retracted, and the climbing beam 4 is locked, and this cycle can be repeated.

In the above embodiment, the entire load of the climbing beam 4, path frame 8, scaffolding unit 13, etc. is received by the lock pin rack 2 as a vertical load via the lock pins 6' and 11, so that the total vertical load is transferred to the tower 1. In addition to transmitting the external force to the upper end, other external forces (reaction forces) are received by the guide rollers 5 and 10 of the climbing beam 4 and the path frame 8, so the scaffolding device according to this invention has an ideal structure that does not receive mechanically excessive external forces. ing.

The climbing cylinder 9 of the embodiment described above may be configured to extend and contract by rotating the screw rod with electric power, or may be operated by fluid pressure, and the climbing cylinder 9 may be configured to connect the climbing beam 4 and the path frame 8 to each other. Any driving means that expands or contracts the distance between the two may be used.

In summary, this invention provides the following effects.

(1) A roller path frame that holds the scaffolding unit in a rotatable manner and raises and lowers the tower when necessary, and a climbing beam that supports this roller path frame via a lifting drive means during lifting and lowering are suspended from the upper end of the tower and suspended. Since the tower is supported by the lock pin rack, there is no need to perform any processing on the tower, and the entire load of the scaffolding unit, path frame, climbing beam, etc. is transferred to the lock pin and the lock. By concentrating the vertical load on the top end of the tower via the pin rack, the entire vertical load can always be received by the entire tower, which is different from the conventional case where the load was received as an uneven load locally on the tower. On the other hand, there is no need to increase the size of the tower structure or complicate the overall structure of this type of scaffolding device, and it is economical because materials can be saved.

(2) The lock pin rack simply has a plurality of pin holes arranged in vertical rows at regular intervals along the tower, and has no direct relation to the structure or dimensions of the tower, and is provided on each of the climbing beam and roller path frame. Since the lock pins can be individually engaged and detached from the pin holes, by operating the lifting drive means while alternately engaging and disengaging the lock pins, it is possible to ensure that the scaffolding unit is moved smoothly at any time. You can climb with ease,
The climbing pitch can also be set arbitrarily, which has a great practical effect in contributing to improved workability when installing tower-like structures.

[Brief explanation of the drawing]

The drawings show a preferred embodiment of this invention; Fig. 1 is a front view of the tower, Fig. 2 is a side view of the tower, Fig. 3 is a side view of the entire scaffolding device, and Fig. 4 is an enlarged side view of the main parts. , FIG. 5 is a cross-sectional plan view thereof, FIG. 6 is an enlarged side view of the climbing mechanism, and FIG. 7 is a plan view thereof. In the figure, 1 is the tower, 2 is the lock pin rack, 3 is the pin hole, 4 is the climbing beam, 6 and 11 are the lock pins, 8
1 is a roller path frame, 9 is a climbing cylinder exemplified as an elevating drive means, and 13 is a scaffolding unit.

Claims (1)

[Scope of utility model registration request] A tower installed upright, a lock pin rack that is hung from the top end along the side wall and has pin holes at predetermined intervals in the vertical direction along the tower, and a lock pin rack that is mounted on the tower and can be raised and lowered. a liming beam, a roller path frame which is mounted on a tower above the liming beam so as to be able to rise and fall and which holds a scaffolding unit in a swingable manner, and a lifting drive means which supports the roller path frame on the climbing beam so as to be able to rise and fall; A lock pin is attached to each of the climbing beam and the hero roller pass frame to be engaged and detached from the pin hole of the lock pin rack, and the climbing load of the scaffold unit is transferred to the tower as a vertical load via the lock pin rack. A work scaffolding device for a tower-like structure, etc., characterized in that it is configured to be received by a person.