JP2801668B2 - Fluid injection device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to an apparatus for injecting a fluid such as a slurry concrete into a fixed formwork. .

<Prior Art> Conventionally, as a device for injecting a fluid in the case of producing a lightweight cellular concrete plate with a molding form, for example, an apparatus as shown in FIGS. 5 to 7 has been used.

That is, in the figure, 1 is a self-propelled mixer truck, in which a slurry-like concrete fluid 2 (hereinafter simply referred to as a fluid), which is a raw material of lightweight cellular concrete, can be stored. It is configured such that the fluid 2 can be constantly stirred. Reference numeral 3 denotes a support rod protruding horizontally on one side of the mixer truck, and two injection pipes 4a, 4 also attached to one side of the mixer truck 1.
The tip of b is supported via the hanging tool 5. The injection nozzles 7 are connected to the tips of the injection pipes 4a and 4b via telescopic hoses 6.
a, 7b are mounted, and these injection nozzles 7a, 7b are configured so as to be able to move up and down by a hydraulic cylinder 8 mounted on the support rod 3 and the hanging tool 5. The injection nozzles 7a and 7b are provided with opening / closing valves 9, respectively. 1
Reference numeral 0 denotes a fixed formwork for molding a lightweight cellular concrete plate, in which a reinforcing bar cage 11 is inserted at the center thereof, and the injection nozzles 7a and 7b are connected between the reinforcing bar cage 11 and the inner side wall of the forming frame 10. It is configured to be able to move up and down.

<Problems to be Solved by the Invention> However, in the conventional apparatus for injecting a fluid, the support rod 3 and the injection pipes 4a and 4b are integrally attached to the mixer truck 1, so that the mixer truck 1 In order to inject the fluid 2 into the mold 10, as shown in FIGS. 5 and 6, the injection pipes 4a, 4b are swung over the mold 10, and then the injection nozzles 7a, 7
b, are respectively lowered into the mold 10, and in this state, the fluid 2 is injected from the injection nozzles 7a, 7b, and after the injection is completed, the injection nozzles 7a, 7b are raised and the injection pipe Four
The mixer truck 1 must be run by turning a, 4b to the position shown by the chain line in FIG. 7, so that the entire movement is extremely complicated, and there is a problem that it takes time for each movement. . Further, since the mixer rod 1 is integrally provided with the support rod 3, the injection pipes 4a and 4b, and the injection nozzles 7a and 7b, the mixer wheel 1 must have a large structure capable of supporting heavy objects. Therefore, the mobility of the mixer truck 1 also has a problem.

The apparatus according to the present invention is a novel technique developed in view of these conventional problems, and in particular, eliminates the need to integrally attach a support rod, an injection pipe, an injection nozzle, etc. to a mixer truck as in the related art. It is intended to provide such a device.

<Means for Solving the Problems> The present invention is a technology developed to fundamentally solve the above-mentioned conventional problems, and the gist of the present invention is to reduce the flow of slurry concrete or the like stored in a self-propelled mixer truck. In a device for injecting a shaped material into a fixed mold, a take-off pipe for removing a fluid having a first connecting device at a tip was attached to a self-propelled mixer truck, and further, an injection tube and an injection nozzle were attached. A second connecting device that can be detachably connected to the first connecting device is provided at a tip of the injection tube of the injection device main body that can be disposed on the fixed mold.

<Operation> In the present invention, as described above, since the injection pipe and the injection nozzle are attached to the injection apparatus main body and the injection pipe can be docked to the mixer truck,
The insertion or movement of the injection nozzle into the mold can all be done separately from the movement of the mixer truck, which greatly simplifies the overall movement and the time before and after the injection of the fluid. Can be extremely shortened.

Since there is no need to integrally attach the injection pipe and the injection nozzle to the mixer truck as in the related art, it is possible to reduce the weight and size and improve the mobility of the mixer truck.

<Example> One embodiment of the device according to the present invention will be specifically described with reference to the drawings. FIG. 1 is a simplified side view of the injection device according to the present invention, FIG. FIG. 3 is an explanatory view showing an elevating mechanism of the injection nozzle, and FIGS. 4 (A) and 4 (B) are explanatory views showing a main part of an apparatus for docking a mixer truck and an injection apparatus main body, respectively, and an operation thereof. is there.

1 to 3, reference numeral 21 denotes a self-propelled mixer truck, in which a fluid 22 is stored so as to be able to stir. A take-out pipe 23 from which the fluid 22 can be taken out protrudes from one side of the mixer truck 21, and an open / close valve 24 and a first connecting device 25 are attached to the take-out pipe 23, respectively.

26 is an injection device body composed of a portal frame 27 and the like, and traveling wheels 28 are attached to this portal frame 27,
It is constituted so that it can run along the rail mentioned below. Reference numeral 29 denotes an injection tube attached to the injection device main body 26, the second end of which can be connected to the first connection device 25 at the base thereof.
The connecting device 30 and the telescopic hose 31 are attached. The injection pipe 29 is branched into two in the middle, and the injection nozzles 32a and 32b and the telescopic hose 33 are provided at the ends of these branch pipes 29a and 29b.
And are attached. The injection nozzles 32a and 32b are constructed so that they can be moved up and down by a hydraulic cylinder 34 via a hanger 35, as is apparent in FIG.

In particular, as shown in FIG.
The injection device main body 26 is configured to run on a rail 37 laid in parallel with the rail 36.

Numeral 38 denotes a plurality of molds for molding a lightweight concrete plate, which are arranged in parallel along the rail 37. A steel cage 39 is inserted into the formwork.

Next, FIGS. 4A and 4B are explanatory views showing the configuration of the first connecting device 25 and the second connecting device 30 and the connection state between the two, and the second connecting device 30 has a trapezoidal shape. First connecting device 25
A recess 30a into which the first connecting device 25 is inserted is provided at a predetermined position of the recess 30a, and a plurality of O-ring packings 40 are attached at predetermined positions of the recess 30a. It is configured so that it can be kept in a state. The upper and lower portions of the second connecting device 30 have the first connecting device 25 fitted into the recess 30a.
Is rotatably pivotally mounted on a claw-shaped clamp device 41 capable of locking the same.

Accordingly, the first connecting device 25 and the second connecting device 30 are configured so as to be mutually connected and fixed from the state of FIG. 4A to the state of FIG.

Since the injection device according to the present invention has the above-described configuration, while the mixer truck 21 filled with the flowable material 22 travels next to the mold 38, the injection device main body 26 is attached to the mold 38. Injection nozzles 32a, 32b arranged above and equipped inside
Is inserted into the mold 38, and the flow 22 is awaited to flow into the injection pipe 29 connected to the injection nozzles 32a and 32b.

Therefore, in the apparatus of the present invention, the first
The connecting device 25 and the second connecting device 30 of the injection device main body 26 are detachably docked to each other, so that the fluid 22 of the mixer truck 21 can be immediately discharged from the injection nozzles 32a and 32b to the formwork 38.
Can be injected inside.

After the injection of the fluid 22 is completed, the first connecting device 25
By immediately opening the docking of the mixer and the second coupling device 30, the mixer 21 and the injection device main body 26 can be separately moved to the next mold 38 to similarly inject the fluid 22. .

<Effect of the Invention> Since the device according to the present invention has the above-described structure and operation, it is not necessary to integrally attach the injection pipe and the injection nozzle to the self-propelled mixer truck as in the related art. In addition, the work of rotating the injection nozzle on the fixed formwork and elevating and lowering the injection nozzle each time can be completely dispensed with, so that the work time can be significantly reduced, and the self-propelled mixer truck can be lightened. It has features such as being able to be reduced in size and having mobility.

[Brief description of the drawings]

FIG. 1 is a simplified side view of an injection device according to the present invention, FIG.
FIG. 3 is an explanatory plan view of a main part thereof, FIG. 3 is an explanatory view showing an elevating mechanism of an injection nozzle, and FIGS. FIG. 5 is a schematic side view showing a conventional example, FIG. 6 is a plan view thereof, and FIG. 7 is an explanatory view showing elevation of an injection nozzle in the apparatus. . 21 is a self-propelled mixer truck, 22 is a fluid, 23 is an extraction pipe, 25
Is a first connecting device, 29 is an injection pipe, 30 is a second connecting device, 34 is a hydraulic cylinder, 35 is a hanger, 37 is a rail, and 38 is a mold.

Claims (2)

(57) [Claims] In a device for injecting a fluid such as a slurry-like concrete stored in a self-propelled mixer truck into a fixed mold, a pipe for removing a fluid having a first connecting device at an end thereof is automatically connected. A first connecting device which can be detachably connected to the tip of the injection tube of the injection device main body which can be mounted on the stationary mixer equipped with the injection tube and the injection nozzle respectively mounted on the traveling mixer truck. A fluid injection device characterized by comprising two connecting devices. 2. A patent wherein a plurality of molds are arranged in parallel along a rail on which a self-propelled mixer truck travels, and a main body of the injection device can run on a rail laid in parallel with the rail. The fluid injection device according to claim 1.