JPH05133109A - Lifting and piping method of riser unit and lifter - Google Patents

Abstract

PURPOSE:To obtain the lifting and piping method of a riser unit having excellent operating efficiency and safety and a lifter thereof. CONSTITUTION:Blocks 22, 23 are installed to the upper and lower sections of a pipe shaft 19, wires 24 are passed through the blocks 22, 23, and one ends are bound with a riser unit 10 and the other ends are mounted to a lifter 25. A plurality of movable supporters 20 with movable plates 21 are set up at the positions of specified height on the inwall surface of a pipe shaft 19 respectively, and the hung riser units 10 are supported by said movable plates 21. Accordingly, operation is conducted after concrete is placed or after interior is finished, thus decreasing the number of man-hour concerned, then also improving safety.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a standing pipe unit for vertically connecting a standing pipe unit in which various standing pipes are integrally assembled in a pipe shaft of a middle-high-rise building to a super-high-rise building. The present invention relates to lifting of a pipe unit, a piping method, and a lifting device therefor.

[0002]

2. Description of the Related Art When piping various supply pipes, ventilation pipes, drainage pipes, etc. in a pipe shaft that penetrates from the top floor to the bottom floor of a building, conventionally, long pipes are cut and threaded. After the secondary processing such as, etc., each standing pipe is manually carried up to each predetermined floor of the building, and each standing pipe is screwed and connected through a joint, or the straight pipe part is connected to the socket by connecting. Was there.

In recent years, there is a shortage of skilled workers such as plumbers.
In order to solve the problem of aging and the decrease in productivity accompanying it, a standing pipe unit is constructed by vertically arranging a plurality of standing pipes each having a length of one floor or several floors, and mounting it on a frame. A construction method has been proposed in which the standing pipe units are sequentially assembled in the pipe shaft from below.

FIG. 6 shows an example of a conventional stand tube unit 1 disclosed in Japanese Patent Publication No. 2-6904, for example.
This standing pipe unit 1 is formed by vertically arranging six standing pipes 2 each having a length of three floors and fixing them to a frame 3 by a U band 4.

Such a standing pipe unit 1 is lifted up to the uppermost floor by a tower crane provided in the building before placing concrete on the floor of the steel frame building, and then placed in a pipe shaft and hung down to the lowermost floor. To be done. Similarly, the next standing pipe unit is put into the pipe shaft and suspended, and each standing pipe is connected to each standing pipe of the lower standing pipe unit 1. In this way, the vertical pipe units 1 are put into the pipe shaft one after another, and the respective vertical pipes are sequentially connected from below.

[0006]

The above-mentioned conventional method of carrying up the secondary processed vertical pipe and connecting it by screwing or inserting is used for the construction work such as concrete pouring, curing form scrambling, and smearing. I have to wait until the end,
In addition, heavy and heavy vertical pipes have to be secondarily processed, and they have to be carried up to a predetermined floor, which requires heavy labor. Further, depending on the construction process, there are problems such as unreasonableness, waste, and unevenness, increasing labor costs there were.

In the method using the vertical pipe unit, the construction work is prioritized and the day and time are limited, and since the tower crane is used, the work is interrupted by the weather such as rain, snow and wind. Sometimes. In addition, since the work of connecting the standpipe unit is performed in a place where there is no floor concrete, there is a problem that the work becomes dangerous.

The present invention has been made in order to solve the above problems, and is not restricted by the construction work process, and has a high work efficiency and safety. Is intended to provide.

[0009]

According to a first aspect of the present invention, there is provided a hoisting and plumbing method for a stand tube unit, wherein pulleys and hoists provided above and below a pipe shaft are used to hoist the stand tube unit via a wire. , So that it can be sequentially lifted downward from the highest position and supported by a movable support device provided on the pipe shaft, and that each standing pipe of the standing pipe unit and each standing pipe of the upper standing pipe unit can be connected. It was done.

According to a second aspect of the present invention, there is provided a hoisting unit for a vertical tube unit, in which pulleys are provided above and below a pipe shaft, and a wire is passed through the pulley to tie one end to the vertical tube unit and the other end to a hoist. In addition, a plurality of movable supporting devices having movable plates are provided at predetermined height positions on the inner wall surface of the pipe shaft, and the lifted stand tube unit is supported by the movable plates.

[0011]

According to the first and second aspects of the present invention, the lifting work can be performed after placing the concrete into the concrete or after finishing the interior finish, and therefore, the work efficiency and safety can be improved, and the pulley is also provided. The weight of the standpipe unit can be reduced and the capacity of the lifting machine can be reduced by using the combination of.

[0012]

EXAMPLE FIG. 3 shows an example of a vertical pipe unit. This standing pipe unit 10 vertically arranges a plurality of (six in the figure) various standing pipes 11 each having a length of approximately one floor or approximately several floors, and has two portions close to the upper and lower ends thereof. The floor deck plate 12 of FIG. The floor deck plate 12 is provided with sleeves 13 through which the vertical pipes 11 are inserted, and the sleeves 13 and the vertical pipes 11 are prevented from slipping off.
It is fixed through 4.

The two floor deck plates 12 are supported by four pipe frames 15, and each pipe frame 15 is divided into two and connected by a connecting socket 16 with a screw at the center, and the upper and lower ends are the floor deck plates 12 respectively. It is screwed into a mounting socket 17 provided on the. Further, the floor deck plate 12 is provided with wire passing holes 18 at four positions thereof so that the wire of a lifting machine described later can be passed therethrough.

The six vertical pipes 11 are, for example, a water supply pipe, a hot water supply pipe, a return hot water pipe, a gas pipe, a drainage pipe, and a ventilation pipe from the left side of the drawing. Further, the floor deck plate 12 and the pipe frame 15 constitute a frame as a whole.

1 and 2 show an embodiment of a hoisting device and hoisting method for hoisting and assembling the vertical pipe unit 10, wherein two inner walls of the pipe shaft 19 facing each other are provided. A plurality of movable supporting devices 20 are provided. A plurality of these movable supporting devices 20 are arranged facing each other at predetermined intervals according to the floor height. The movable support device 20 is provided with a movable plate 21. As will be described later, the movable plate 21 is normally held in a horizontal state and is rotated upward when a force is applied from below, but is returned to the original horizontal state by a spring that releases the force. ing.

The movable support device 2 for the pipe shaft 19
Two pairs of hoisting pulleys 22 are provided on the uppermost floors of the two inner wall surfaces orthogonal to the inner wall surface on which 0 is provided, and two pairs of hoisting pulleys 22 are provided immediately below the opening 19a on the lowest floor of the pipe shaft 19. A pair of guide pulleys 23 are provided. Both pulleys 22,
A wire 24 is inserted through the wire 23, and one end of the wire 24 is fixed to a lifting machine such as a winch.

4 and 5 show an embodiment of the movable supporting device 20. In each drawing, the mounting plate 25 has bolts (not shown) inserted into the bolt holes 25a on the inner wall surface of the pipe shaft 19. It is attached and fixed via. This mounting plate 25
The movable plate 21 is movably supported by a pin 28 inserted into pin holes 26 and 27 provided in both of them. This pin 28 is attached to the mounting plate 2 by a nut 29 and a washer 30.
Tightened to 5.

The mounting plate 25 has a circular groove 3 for storing a spring.
1 is provided, and a recess 32 for receiving a spring is provided at a position corresponding to the circular groove 31 of the movable plate 21. Also,
A spring 33 is housed in the circular groove 31, and an end portion of the spring 33 is inserted into the spring retaining hole 34.

Next, the lifting and piping method with the above construction will be described. 1 and 2, after the construction of the concrete frame is completed or the interior construction is completed, first, the wire 24 is passed through the pulleys 22 and 23, one end of which is fixed to the lifting machine 25, and the other end is the bottom with the pulley 23. Drop down to near the position. Then 1
The one vertical pipe unit 10 is carried to the position directly below the opening 19a on the lowest floor of the pipe shaft 19. Next, the other end of the wire 24 is tied to the wire through hole 18 provided in the floor deck plate 12 above the standing pipe unit 10, and the lifting preparation is completed.

When the preparation for lifting is completed, the lifting machine 25 is driven. Thereby, the wire 24 is wound up via the pulleys 22 and 23, and the standing pipe unit 10 is lifted up. When the standing pipe unit 10 rises in the pipe shaft 19 in the direction of the arrow, the movable plate 21 of each movable support device 20 is sequentially flipped up by the floor deck plate 12 above.
When the standing pipe unit 10 passes, the movable plate 21 that has been flipped up is pushed by the spring 33 and returned to the original horizontal state.

When the standing pipe unit 10 is lifted to a predetermined highest position, the movable plate 2 of the uppermost movable support device 20 is lifted.
1 and is supported by the movable plate 21. Therefore, the wire 24 is removed from the stand tube unit 10, and then the lifting machine is driven in the opposite direction to lower the wire 24 to the original lowest position.

Then, the next standing tube unit 10 is carried, the wire 24 is tied, the lifting machine 25 is driven again, and the standing tube unit 10 is lifted. When lifted to a predetermined position, the movable plate 2 of the movable support device 20 on the next predetermined floor is moved.
Drops on 1.

Next, the vertically lifted stand tube unit 10
Each of the vertical tubes 11 and the next vertical tube 11 of the vertically lifted vertical tube unit 10 are connected via a slide joint or the like.

Similarly, the vertical pipe unit 10 is successively lifted up to a predetermined maximum position and supported by the movable support device 20, and then the lifted vertical pipe unit 10 is connected to each vertical pipe 11. This completes the piping of the various vertical pipes 11 from the top floor to the bottom floor.

The pipe frame 15 of the vertical pipe unit 10 is divided into two by turning the connecting socket 16 at the stage when the connection between the vertical pipes 11 is completed, and is further removed from the mounting socket 17. The removed pipe frame 15 is reused for assembling another stand pipe unit 10.

It goes without saying that the pipe frame 15 may be attached by any other method than the screwing method using the attachment socket 17, such as a pin method.

[0027]

According to the first aspect of the present invention, by using the pulleys and hoisting machines provided above and below the pipe shaft, the standing pipe unit is hoisted via the wire and hoisted to the uppermost floor and sequentially downward, and supported by the movable supporting device. The vertical pipes of the vertical pipe unit are connected to the vertical pipes of the upper vertical pipe unit.

According to the invention of claim 2, above the pipe shaft,
A pulley is provided below, and a wire is passed through the pulley to tie one end of the pulley to a stand tube unit and the other end to a lifting machine, and a plurality of movable supporting devices each having a movable plate on the inner wall surface of the pipe shaft have a predetermined height. The movable tube is supported by the movable plate.

Therefore, according to the first and second aspects of the present invention, it is possible to carry out the collective lifting at the stage of completing the concrete pouring and the stage of finishing the interior, and therefore, the construction work and the weather do not affect the work. Interruption due to construction process
Therefore, unevenness does not occur, work efficiency and safety are improved, and manpower is reduced because the man-hours are greatly reduced. In addition, since pulleys are used, compared with the conventional lifting method using a tower crane, for example, from the principle of pulleys, a moving pulley is installed in the vertical pipe unit, and a fixed pulley driven into concrete for concrete is combined with the moving pulley. As a result, the capacity of the lifting machine can be halved due to the relationship of F (magnitude of force) = 1/2 W (W = weight of vertical tube unit). In addition, even in the case of complete renovation of various vertical pipes, it is possible to easily remove and renew the hoisting pulley, the guiding pulley and the movable supporting device by reusing them.

Further, by using the standpipe unit having the configuration of FIG. 3, the pipe frame in the standpipe unit configuration can be diverted to the detachable type, so that the production cost of the standpipe unit can be reduced.

[Brief description of drawings]

FIG. 1 is a side view of a hoisting and piping method for a vertical pipe unit and a hoisting device therefor according to an embodiment of the present invention.

FIG. 2 is a plan view of the method and apparatus.

FIG. 3 is a perspective view of a stand tube unit used in the present invention.

FIG. 4 is an exploded perspective view of a movable support device used in the present invention.

FIG. 5 is a side view of the device.

FIG. 6 is a perspective view of a conventional stand tube unit.

[Explanation of symbols]

 10 Stand Pipe Unit 11 Stand Pipe 19 Pipe Shaft 19a Opening 20 Movable Support Device 21 Movable Plate 22,23 Pulley 24 Wire 25 Lifter

Claims (2)

[Claims] 1. A vertical pipe unit 10 comprising a plurality of various vertical pipes 11 and frames 12 and 15 attached to a floor slab is placed directly below an opening 19a of the lowest floor of a building pipe shaft 19, and then the above-mentioned. Attach one end of the wire to the stand tube unit,
This wire is passed through the pulleys 22 and 23 provided above the pipe shaft 19 and directly below the other end of the pipe shaft 19.
5 and then the hoisting machine is driven to hoist the standing pipe unit in the pipe shaft, and when the standing pipe unit is hoisted to a predetermined floor, the standing pipe unit is supported by the movable supporting device 20 provided on the pipe shaft. In the same manner, the standing pipe units are sequentially lifted from the upper side to the lower side on predetermined floors and supported by the movable supporting devices 20, respectively, and the standing pipes of the standing pipe units and the standing pipes of the standing pipe units above the standing pipe units, respectively. Lifting and piping method of the vertical pipe unit to be connected. 2. A pulley 22 provided at a predetermined position above a pipe shaft 19 of a building, and a pulley 23 provided directly below a lowermost floor opening 19a of the pipe shaft,
Various standing pipes 11 and floor slabs 1 each having a plurality of ends passing through the above pulleys
2, a wire 24 that is vertically attached to the standing pipe unit 10, a lifting machine 25 to which the other end of the wire is attached to lift the standing pipe unit, and a height direction on the inner wall surface of the pipe shaft. A plurality of movable supports having movable plates 21 on which the standing pipe units are placed and which are movable when passing through the standing pipe units and return to a horizontal state after passing through the standing pipe units. And a lifting device for a standpipe unit including the device 20.