JP3182372B2 - Concrete casting equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a concrete placing device for placing concrete in a formwork.

[0002]

2. Description of the Related Art Conventionally, when concrete is poured into a formwork, a method as shown in FIGS. 5 and 6 has been generally performed. 5 and 6, reference numeral 101 denotes an upper slab, 1
03 is the lower slab, 105 is the formwork, 107 is the ground, 10
9 is a vibrator, 111 is a hose, 113
Is a non-shrink mortar.

[0003] A funnel is attached to the upper part of the formwork 105, concrete is charged by a hose 111, and after the formwork 105 is disassembled, the overhanging portion is removed, and a new formwork 105 is installed at the joint. The non-shrink mortar 113 is filled as shown. However, in this method, the filling up to the top end is insufficient, and the overhanging portion is cut off, so that the appearance of the joint is also poor. In addition, the non-shrink mortar 113 is used to fill the remaining portion on the upper side, but the construction cost increases as the mortar amount increases.

[0004] As a method for solving these problems, a concrete hose is connected to a concrete pressure inlet provided in a formwork, and concrete is poured.
Replace the tip hose with another concrete pressure inlet,
There is a method of placing concrete.

[0005]

However, in this method, it takes time and labor to replace the end hose,
There is loss of concrete at the time of pipe desorption. Therefore, 1
It is not possible to increase the amount of concrete poured daily.
In addition, since a part is launched first, a burden is imposed on the formwork.

[0006] The present invention has been made in view of the above problems, and an object of the present invention is to provide a concrete pouring device that requires less manpower and time, and that causes less concrete loss. .

[0007]

Means for Solving the Problems In order to achieve the above object, a first invention is a concrete placing device for placing concrete in a formwork, which is provided in a horizontal direction of the formwork. A plurality of input ports, a connecting pipe for connecting the concrete supply source and the plurality of input ports, comprising a plurality of branch pipes in the middle of the connecting pipe, a shutter valve in the branch pipe. A hose is connected to the inlet through a press-fitting valve, and the concrete is poured into a desired inlet by opening and closing the shutter valve. Also, a second invention is a concrete placing device for placing concrete in a formwork, a plurality of input ports provided in a horizontal direction of the formwork, a concrete supply source and the plurality of input ports. A plurality of branch pipes are provided in the middle of the connection pipe, a hose is connected to the branch pipe via a shutter valve, and the hose is connected via a press-fit valve. When pouring concrete using a concrete pouring device connected to the input port, the shutter valve allows the concrete to be poured in order from a plurality of input ports or simultaneously from the plurality of input ports. This is the method of placing concrete.

[0008] In the present invention, a plurality of concrete inlets connected to a concrete pressure feeding pipe are provided, and concrete can be poured continuously from each inlet sequentially or simultaneously from each inlet.

[0009]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a schematic view showing an example of a concrete placing device of the present invention, FIG. 2 is a view taken along the line AA in FIG. 1, and FIG. 3 is a detailed view of a concrete pumping pipe branch portion. FIG. 4 is an explanatory diagram of the concrete placing procedure.

1, 2 and 3, 1 is an upper slab, 3 is a lower slab, and 5 is a mold. Input ports 19 are provided at a plurality of positions in the horizontal direction of the mold 5. The pressure feed pipe 9 is connected to a pressure feed pump (not shown) as a concrete supply source, and a branch pipe 10 is provided on the way. A hose 11 and a pipe 14 are connected to the branch pipe 10 via a shut valve 13.

For example, a shutter valve 13-4 is provided in the branch pipe 10-3, and the shutter valve 13-4 is provided.
The press-fit valve 7 is provided at the other end of the hose 11, and the press-fit valve 7 is attached to the input port 19. Also, the shutter valve 13 is connected to the branch pipe 10-3.
-5 is provided, and the hose 11 is connected to the shutter valve 13-5 via the pipe 14. A connecting pipe is constituted by the concrete pressure feeding pipe 9, the pipe 14, and the branch pipe 10.

Reference numeral 15 denotes a cleaning opening provided in the mold 5 and reference numeral 17 denotes an air vent hole provided in the mold 5.

The installation interval of the inlet 19 differs depending on the properties of the concrete, and is set in consideration of fluidity and upper filling property. For example, when high-fluid concrete with a slump flow of about 65 cm is used, it is 7 to 8 m. Is preferred.

The press-fitting valve 7 is closed after the concrete placement is completed to prevent the backflow of the concrete to the concrete feed pipe, and may be always opened before the concrete placement is completed.

The shutter valve 13 is used to switch between driving and stopping the concrete into each of the charging ports 19.
The shutter valve 13 is suitable for the present invention because the mortar flows out less than the pin valve. Further, the length a of the branch portion of the branch pipe 10 shown in FIG. 3 is preferably shorter in consideration of the possibility of the property change of the concrete accumulated in the branch portion while the concrete pumping to the branch side is stopped.

Next, a method of placing concrete using this apparatus will be described. In the present invention, the selection of the concrete inlet can be freely selected by opening and closing the shutter valve 13 so as to adjust the overall launch height without bias. As shown in FIG.
3-1 is opened, the other shutter valves are closed, concrete C-1 is charged, the shutter valve 13-1 is closed, and then only the shutter valve 13-2 is opened and concrete C-2 is charged, and the shutter is opened. Close the valve 13-2. Similarly, sequentially from (C-3) → (C-4) → (C-
5) → (C-6) → (C-7) → (C-8) → (C-
9) Cast concrete as (C-10).

As described above, according to the present embodiment, the mold 5
When the concrete is poured into the inside, it is not necessary to replace hoses to the plurality of inlets 19, and it does not require manpower or time, and the loss of concrete at the time of pipe desorption can be reduced. In addition, since there is no interruption of the installation due to the replacement of the hose, it is possible to increase the daily amount of the concrete. Further, the launch speed of the entire wall can be controlled, and the burden on the mold 5 due to the uneven launch height can be reduced.

Although FIG. 4 shows a method in which concrete is poured from the input ports 19 one by one, a plurality of input ports 19 are used.
You can also pour concrete at the same time.

In the above-described embodiment, a wall or a pillar is constructed by using a reverse-casting method. However, the present invention can be applied to means for distributing concrete other than the reverse-casting method. .

[0020]

As described in detail above, according to the present invention, it is possible to cast concrete without requiring any manpower or time and with low concrete loss.

[Brief description of the drawings]

FIG. 1 is a schematic view showing an example of a concrete casting device according to the present invention.

FIG. 2 is a view taken in the direction of arrows AA in FIG. 1;

FIG. 3 is a detailed view of a concrete pumping pipe branch section.

FIG. 4 is an explanatory view of a concrete placing procedure.

FIG. 5 is a diagram showing a conventional method of placing concrete.

FIG. 6 is a diagram showing a conventional method of placing concrete.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Upper slab 3 ... Lower slab 5 ... Mold 7 ... Press-fit valve 9 ... Concrete pumping pipe 10 ... Branch pipe 11 ... Flexible hose 13 ... Shutter valve 14 ………………………………………………………………………… ……………………………… ……………………… ……………… １９ １９ １９ １９ １９ １９ １９ １９ １９ １９

──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Yuji Ogawa 1-3-8 Moto-Akasaka, Minato-ku, Tokyo Kashima Construction Co., Ltd. Tokyo Branch (56) References JP-A-8-246673 (JP, A) ( 58) Field surveyed (Int. Cl. ⁷ , DB name) E04G 21/04

Claims (4)

(57) [Claims] 1. A concrete casting device for casting concrete into a formwork, wherein a plurality of input ports provided in a horizontal direction of the formwork are connected to a concrete supply source and the plurality of input ports. A plurality of branch pipes are provided in the middle of the connection pipe,
A hose is connected to the manifold via a shutter valve,
This hose is connected to the inlet through a press-in valve.
It is, close to the desired inlet by opening and closing of the shutter valve
Casting concrete characterized by pouring cleats
Equipment. 2. Opening and closing of the shutter valve causes multiple operations.
The feature is that concrete is poured simultaneously from several input ports.
The concrete casting device according to claim 1, wherein 3. The concrete injection pumping valve is completed.
After that, block the concrete and prevent the concrete from flowing back.
The concrete casting device according to claim 1, wherein: 4. A concrete for casting concrete in a formwork.
A setting tool REITs, continuous connecting a plurality of input ports provided in the horizontal direction of the mold, the concrete supply said plurality of inlet
Comprising a sintered tube, a plurality of branch pipes are provided in the middle of the connecting pipe, the amount
A hose is connected to the manifold via a shutter valve,
This hose is connected to the inlet through a press-in valve.
Concrete using a concrete placement machine
When the shutter valve is used,
Or concrete from the plurality of inlets simultaneously
Concrete pouring method characterized by pouring concrete.