JPH0438965Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] This invention relates to a concrete placing device, and more specifically, it is used to place concrete blocks into formwork when manufacturing irregularly shaped concrete blocks. The present invention relates to a concrete pouring device that can suitably perform concrete pouring and compaction.

[Prior art and its problems]

Conventionally, large irregularly shaped concrete blocks used for seawalls, foot protection, etc. have been constructed by pouring concrete from the pouring opening of the assembled formwork using a bucket, etc., and then placing workers on or within the formwork. is produced by compacting concrete using a vibrator, but since the concrete is poured into the pouring hole at a height of several meters, the vibrator causes vibration due to the difference in specific gravity of the aggregate. The disadvantage was that homogeneous concrete could not be obtained even if

Therefore, a method has been adopted in which the concrete is placed with the concrete transport pipe of the concrete pump truck facing the inside of the formwork, but although this method solves the inconvenience caused by the difference in the fall of concrete and the problem of transport, the working condition after pouring is Not only does it require poor compaction work, but also this compaction work is sometimes performed while moving concrete piled up in the formwork with a vibrator.
There were problems with the quality of the concrete, and furthermore, there were various problems such as poor workability and low work efficiency.

[Means for solving problems]

Therefore, in this invention, in order to solve the above-mentioned problems, a concrete pouring pipe is connected to the concrete transport pipe of the pump truck to a suspension device that is attached to the boom of the concrete pump truck via a mounting member. A driving device for rotating the concrete pouring pipe around an axis is disposed on the suspension device, and one or more vibrators are pivotally mounted at predetermined locations on the outer periphery of the concrete pouring pipe. By configuring the vibrating part of the vibrator so that it can be held expanded at a predetermined angle with respect to the axis of the casting pipe,
The aim is to improve the efficiency of concrete placement and compaction work and to improve the quality of concrete.

[Effect]

In the concrete pouring device according to this invention, the concrete that has been forced into the formwork through the pouring pipe and poured is expanded, drilled, and is rotated appropriately by a drive device to apply vibration and compaction.

〔Example〕

Next, preferred embodiments of the concrete placing apparatus according to the present invention will be described in detail below with reference to the accompanying drawings.

In FIG. 1, the concrete placing apparatus according to the present invention includes a suspension device 12 attached to a boom A of a concrete pump vehicle via an attachment member 10, and a suspension device 12 supported by the suspension device 12 and the concrete pump The suspension device 1 is provided with a concrete placing pipe 14 connected to a concrete transport pipe B of the car.
2 is provided with a drive device 16 for rotating the concrete pouring pipe 14, and three vibrators 18a to 18c are pivotally attached to the outside of the concrete pouring pipe 14 and extend at a predetermined angle with respect to its circumferential surface. has been done. In addition, in this case, the concrete pouring pipe 14
and the transport pipe B are connected via a flexible pipe 20 attached to the top of the casting pipe 14.

The suspension tool 12 includes a concrete casting pipe 14 inserted into a frame main body 23 pivotally connected to the mounting member 10, and a gear provided around the concrete casting pipe 14 by a drive device 16 consisting of a drive motor 24 and a gear 26. 28
It is configured to be rotated by operating the. Incidentally, it is preferable that the rotation of the casting pipe 14 be facilitated by providing bearings on the casting pipe 14 and the frame body 23, respectively, as in the present embodiment.

On the other hand, each of the vibrators 18a to 18c arranged on the outside of the casting pipe 14 has an end of a vibrator holding arm 30 pivotally connected to the casting pipe 14, and a hydraulic jack 32 pivoted above the holding arm 30.
An operating rod 34 is attached to a predetermined location on the holding arm 30, and under the action of the hydraulic jack 32, the operating rod 34 is expanded with respect to the circumferential surface of the casting pipe 14. In this case, it is preferable that the vibrating part 36 of the vibrator 18 extends several tens of centimeters below the lower end of the casting pipe 14.

Next, a case will be described in which a multi-legged concrete block is manufactured using the pouring device according to the present invention constructed as described above.

That is, first, the most advanced boom of the concrete pump truck is removed and the present device is pivotally attached to the next stage boom A via the mounting member 10, and then the flexible pipe 20 above the pouring pipe 14 and the transport pipe B are connected. Link. In this case, each of the vibrators 18a to 18c is set so as to be parallel to the pouring pipe 14 by operating each hydraulic jack 32.

Next, operate the boom of the pump car to remove the pouring pipe 1.
4 into the formwork so that its lower end is several inches from the bottom.
Position it so that it is 10 cm high.

Next, concrete pump truck transport pipe B,
While pumping concrete into the formwork through the flexible pipe 20 and the pouring pipe 14, the vibrators 18a~
Compaction is performed by driving 18c. In this case, each vibrator can be expanded or drilled depending on the concrete placement situation and the shape of the form material, as shown in FIGS. Rotate as appropriate to compact.

In this way, once the concrete has been placed and compacted to the required height, the pumping of the concrete is stopped and the pouring pipe 14 and the vibrator 18 attached to the pouring pipe 14 are turned off by operating the boom of the pump truck. All you have to do is pull it up and solidify it.

On the other hand, in FIG. 3, the middle part of the concrete casting pipe 14 directed by the hanging tool 12 is formed by a flexible pipe 38, and the leading end casting pipe 14a and the rear end casting pipe 14b are shown.
This is another embodiment of the pouring device according to the present invention, in which a vibrator 18 is attached to the tip pouring pipe 14a, and
In this case as well, not only can concrete placement and compaction be carried out suitably as in the previous embodiment, but also the tip pouring pipe 14a can be tilted as shown in FIG. Compaction can also be performed extremely easily and reliably.

[Effect of idea]

As mentioned above, according to the concrete placing device according to the present invention, the vibrator can be expanded, drilled, and even rotated within the concrete formwork to perform compaction evenly. Not only can you place high quality concrete with
Since these operations are performed remotely, it is possible to improve work efficiency.Furthermore, it has various advantages such as the ability to set the pouring height appropriately using the pump truck boom, allowing for suitable driving work. The practical effects are extremely large.

Although the preferred embodiment of the concrete pouring device according to the present invention has been described above, the present invention is not limited to this embodiment, and various modifications can be made without departing from the spirit of the present invention. Of course.

[Brief explanation of the drawing]

Fig. 1 is a partially omitted side view showing a preferred embodiment of the concrete pouring device according to the present invention, and Figs. 2a to 2a.
Fig. 2c is an explanatory diagram of pouring and compacting concrete into a multi-legged concrete block form using the placing apparatus shown in Fig. 1, and Fig. 3 is another implementation of the concrete placing apparatus according to the present invention. FIG. 4, a partially omitted side view showing an example, is an explanatory view similar to FIG. 2 of the pouring device shown in FIG. 3. 10...Mounting member, 12...Hanging tool, 14...
Concrete pouring pipe, 16... Drive device, 18...
... Vibrator, 20 ... Flexible tube, 23 ... Frame body, 24 ... Drive motor, 26, 28 ... Gear,
30... Vibrator holding arm, 32... Hydraulic jack, 34... Operating rod, 36... Vibrating section, 38... Flexible tube, 40... Hydraulic operating mechanism.

Claims (1)

[Scope of utility model registration request] The hanging device includes a suspension device attached to the boom of a concrete pump vehicle via a mounting member, and a concrete placing pipe supported by the suspension device and connected to a concrete transport pipe of the pump vehicle. A driving device for rotating the concrete pouring pipe around its axis is installed in the tool, and one or more vibrators are pivotally mounted at predetermined locations on the outer periphery of the concrete pouring pipe, and the vibrating parts of these vibrators are A concrete placing device characterized in that it is configured to be able to expand and hold at a predetermined angle with respect to the axis of the concrete placing pipe.