JP6833347B2 - Rain blower - Google Patents

Description

The present invention relates to a rain blowing device to Fukitoba rain outside a predetermined area in order to prevent the rain from falling in a predetermined area.

As a rain blow-off device that blows rain out of a predetermined area in order to prevent rain from falling into a predetermined area, for example, an air type that blows rain with air so that concrete placing work can be performed even in rainy weather. A roofing device for a construction site provided with a roofing mechanism is known (see Patent Document 1).

Japanese Unexamined Patent Publication No. 7-217219

However, the above-mentioned roof device for construction sites as a rain blow-off device has a configuration in which rain is simply blown off by air, so that it is not possible to effectively blow off rain. For example, when there is a lot of rainfall, the raindrops are large, or the rain falls at a high speed, a high-power, expensive compressor for generating high-pressure air (compressed air) is used to effectively blow off the rain. There was a problem that it was not economical.
The present invention provides an economical rain- blowing device capable of effectively blowing rain out of a predetermined region in order to prevent rain from falling into a predetermined region.

The rain blower according to the present invention blows air so as to collide with each other from each of the first blowers facing each other and each of the first blowers set so that the blowing directions face upward above the area where the rain is not desired to fall. It is equipped with a second blower that blows the raindrops that have become smaller due to the wind in the lateral direction, and the areas where you do not want the rain to fall are arranged so that they are located at the four corners of the quadrangle when viewed from directly above. It is a concrete placement planned area below the area surrounded by the four pillar reinforcements, and each first so as to form a pair of opposite sides of the quadrangle at the upper part of the four pillar reinforcements. Is the blower group provided and is the second blower group provided so as to hang over the upper surface on the end side of each first blower group so as to form one side of the remaining pair of sides of the quadrangle? Alternatively, since the second blower group is provided so as to hang over the upper surface of each of the first blower groups on the central portion side , the rain is applied to a predetermined area in order to prevent the rain from falling into a predetermined area. It is possible to provide an economical rain blower that can be effectively blown to the outside. In addition, it is possible to prevent rain from being mixed into the concrete, and it is possible to perform the concrete placing work without deteriorating the performance of the concrete.
Further, the second blower is installed above the first blower .

The figure which shows the principle of the rain blowing method. A top view of the rain blower. The perspective view which shows the specific example of the rain blow-off device. The figure which looked at the concrete example of the rain blow-off device from the side.

In the rain blowing method according to the embodiment, as shown in FIG. 1, the blowers 1; 1 are opposed to each other so that the blowing directions face upward above the region X in which the rain is not desired to fall, and the blowers 1; The first step of making the raindrops smaller by causing the air and raindrops to fly up while stirring the air by colliding the wind blown from 1 and the raindrops made smaller in the first step from a blower 2 different from the blower 1 This is a method including a second step of colliding the wind to fly raindrops in the lateral direction.
The blowing directions 1F; 1F of the wind blown from the blowers 1; 1 facing each other are set so that the inclination angle with respect to the horizontal plane 1H is a predetermined angle θ and is inclined upward. That is, each blower 1; 1 is attached to a predetermined mounting portion so that the rotation center axis of the rotary blade (fan) is tilted by a predetermined angle θ with respect to the horizontal plane 1H, so that the blowers 1; 1 are blown from the blowers 1; 1 facing each other. The blowing direction 1F; 1F of the wind is set so as to incline upward at a predetermined angle θ with respect to the horizontal plane 1H.
The blowers 1; 1 facing each other are preferably arranged on the same horizontal plane 1H above the region X in which rain is not desired to fall, but may be arranged so as to have a slight height difference. ..
Another blower 2 is installed at a position where wind can be blown from the lateral direction of the portion 1E toward the portion 1E where the wind blown from each of the blowers 1; 1 facing each other collides with the portion 1E and the portion 1E. It is preferable that another blower 2 is installed above each blower 1; 1 facing each other.

Hereinafter, the above-mentioned blowers 1; 1 facing each other will be referred to as a first blower, and another blower 2 will be referred to as a second blower. As the first blower and the second blower, for example, a commercially available general blower having a diameter of a rotary blade rotated by a motor of about 400 mm to 500 mm may be used.

The rain blow-off device to which the above-mentioned rain blow-off method is applied is a first blower 1; 1 set so that the blowing directions face upward above the area where the rain is not desired to fall, and each first blower facing each other. The second blower 2 is provided with a second blower 2 for blowing wind that blows off raindrops that have become smaller due to the wind blown from 1; 1 so as to collide with each other in the lateral direction.

As shown in FIG. 2, the rain blower is located on the ground so as to surround the area X (see FIG. 1) in which the rain is not desired to fall, and is located at the four corners of a quadrangle (square) when viewed from directly above. Four pillars 3; 3 ... Are installed from A (see FIG. 1), and each first blower group forms a pair of opposite sides of a quadrangle at the upper part of these four pillars 3; 3 ... 1A; 1B is provided. The first blower group 1A; 1B is configured by installing a plurality of first blowers 1; 1 ... In an installation unit 1C configured so that a plurality of first blowers 1; 1 ... Can be installed. As the installation unit 1C, for example, an installation frame configured so that a plurality of first blowers 1; 1 ... Can be installed side by side in a horizontal row may be used.
That is, at the upper part of the four pillars 3; 3 ..., One first blower group 1A is provided so as to form one side of the pair of sides facing each other of the quadrangle, and the pair of quadrangles facing each other. The other first blower group 1B is provided so as to form the other side of the sides. At this time, the blowing direction 1F of each of the first blowers 1; 1 ... Of the one first blower group 1A and the blowing direction 1F of each of the first blowers 1; 1 ... Of the other first blower group 1B are at a predetermined angle α. It is set to intersect at = 180 ° -2θ ° (see FIG. 1).

The predetermined angle θ is preferably set in the range of, for example, about 30 ° to 60 °.
As shown in FIG. 1, the larger the predetermined angle θ is, the larger the combined vector 1M of the wind blowing direction vectors F1; F1 of the winds blown from the blowers 1; 1 facing each other, so that the rain is blown upward. It is considered that the effect will be higher, but on the other hand, as the predetermined angle θ becomes larger, the distance Y from each of the blowers 1; 1 facing each other to reach the colliding portion 1E becomes longer, so that the blower 1 is high. It is likely that you will need the output.
Therefore, when the facing distance between the blowers 1; 1 facing each other is short, it is preferable to increase the predetermined angle θ, and when the facing distance between the blowers 1; 1 facing each other is long, the predetermined angle θ is reduced. Is preferable.

Further, as shown in FIG. 2, each of the first blowers described above forms one side of the remaining pair of sides (the remaining two sides) of the quadrangle at the upper part of the four pillars 3; 3 ... A second blower group 2A (shown by a solid line in FIG. 2) to be hung on the upper surface of the end side of the group 1A; 1B is provided, or is hung on the upper surface of each of the first blower groups 1A; 1B on the central side. The second blower group 2A (shown by the alternate long and short dash line in FIG. 2) to be passed is provided.
The second blower group 2A is similar to the first blower group 1A; 1B, and has a plurality of second blowers in an installation portion 2C similar to the installation portion 1C configured so that a plurality of second blowers 2; 2 ... Can be installed. 2; 2 ... Is installed and configured.
In this case, the wind from the second blower group 2A collides (intersects) with the wind from one first blower group 1A and the wind from the other first blower group 1B in the vicinity of the portion 1E and the portion 1E. The blowing direction of the second blower group 2A is set so that the air is blown.
When the second blower group 2A is provided so as to hang over the upper surface of each of the first blower groups 1A; 1B on the central portion side, the two second blower groups 2A; 2A are provided back to back (see FIG. 2). ..

According to the above-mentioned rain blow-off method and rain blow-off device, one first blower group 1A and the other first blower group 1B are provided so as to face each other diagonally upward, and the wind from one first blower group 1A and the other By colliding with the wind from the first blower group 1B of the above, the air and rain are agitated and soared to make the raindrops smaller, and then the wind from the second blower group 2A is made to collide with the reduced raindrops to make the raindrops. Since it flies in the lateral direction, it effectively suppresses the rain from falling to the area X located below between the first blower group 1A and the other first blower group 1B facing each other. You will be able to. Further, it is economical because a commercially available general blower may be used as the blower.
That is, it is possible to effectively blow the rain out of the predetermined area in order to prevent the rain from falling into the predetermined area, and it is possible to realize an economical rain blowing method and a rain blowing device.

Next, a rain blow-off device to which the above-mentioned rain-blow-off method is applied to enable concrete placing work at a concrete placing site in rainy weather will be described.
That is, in order to enable the concrete placing work in a certain area of the building under construction in the rainy weather, the above-mentioned rain blow-off device is constructed on the upper part of the column reinforcement 30 of the building under construction.

Although not shown, the column reinforcement 30 of the building under construction that is erected from the ground surface or the lower floor surface is predetermined along the four sides of the column that becomes a square column when a plurality of main bars are completed. It is a configuration in which a plurality of band bars surrounding these main bars are provided so as to be arranged at intervals of the main bars, and a plurality of band bars surrounding the main bars are provided at predetermined intervals along the extension direction of the main bars.

For example, as shown in FIG. 3, a rain blow-off device for performing concrete placing work in a rainy weather on a floor area of 3 spans in the beam-to-beam direction and 2 spans in the girder direction surrounded by a plurality of column reinforcements 30; 30 ... explain. The span is the distance between the column cores of the column arrangements 30; 30 adjacent to each other. In the case of 3 spans in the beam-to-beam direction and 2 spans in the girder direction, the column arrangement is provided so that three column reinforcements 30 are arranged at equal intervals along the girder direction D (long side direction of the building) of the building when viewed from directly above. The structure is such that four rows of streaks are provided at equal intervals along the direction E between the columns of the building (direction of the short side of the building). Hereinafter, when the position of the column bar arrangement 30 is specified, the column bar arrangement 30A shown in FIG. 3 is used as a reference, and the column reinforcement 30 is specified as the column direction ○ column and the beam-to-beam direction ○ column.

The first blower group 1A is hung between the upper end of the column reinforcement 30A located in the first column in the girder direction and the first column in the beam-to-beam direction and the upper end of the column reinforcement 30B located in the second column in the column-beam direction in the first column in the girder direction. It is provided as follows. The first blower group 1B and the first blower are located at the upper end of the column reinforcement 30C located in the second column in the girder direction and in the first column in the beam-to-beam direction and the upper end of the column reinforcement 30D located in the second column in the column-beam direction in the girder direction. It is provided so that the group 1A and the group 1A are hung back to back. The first blower group 1B is hung between the upper end of the column reinforcement 30E located in the third column in the girder direction and the first column in the inter-beam direction and the upper end of the column reinforcement 30F located in the second column in the third column in the girder direction. It is provided as follows.
Further, the first blower group 1A is hung on the upper end of the column reinforcement 30G located in the first column in the girder direction and the third column in the beam-to-beam direction and the upper end of the column reinforcement 30H located in the fourth column in the column-beam direction in the first column in the girder direction. Provided to be handed over. The first blower group 1B and the first blower are located at the upper end of the column reinforcement 30I located in the second column in the girder direction and in the third column in the beam-to-beam direction and the upper end of the column reinforcement 30J located in the fourth column in the column-beam direction in the second column in the girder direction. It is provided so that the group 1A and the group 1A are hung back to back. The first blower group 1B is hung between the upper end of the column reinforcement 30K located in the third column in the girder direction and the third column in the beam-to-beam direction and the upper end of the column reinforcement 30L located in the third column in the girder direction and the fourth column in the beam-to-beam direction. It is provided as follows.

Next, on the upper surface of the column reinforcement 30B; 30D; 30F located in the second row in the beam-to-beam direction, the first blower group 1A; the first blower group 1B; the first blower group 1A; the first blower group 1B. The second blower group 2A is provided so as to be hung over the end portion (the end portion near the center side in the inter-column direction). Further, the end on the upper surface of the first blower group 1A; the first blower group 1B; the first blower group 1A; the first blower group 1B located above the column reinforcement 30G; 30I; 30K located in the third row in the beam-to-beam direction. The second blower group 2A is provided so as to be hung over the portion (the end portion near the center side in the inter-beam direction).

Further, the first is hung between the end on the upper surface of the second blower group 2A located above the column reinforcement 30B and the end on the upper surface of the second blower group 2A located above the column reinforcement 30G. A blower group 1A is provided. The first blower group so as to be hung between the end on the upper surface of the second blower group 2A located above the column reinforcement 30D and the end on the upper surface of the second blower group 2A located above the column reinforcement 30I. 1B and the first blower group 1A are provided back to back. The first blower group so as to be hung between the end on the upper surface of the second blower group 2A located above the column reinforcement 30F and the end on the upper surface of the second blower group 2A located above the column reinforcement 30K. 1B is provided.

Finally, the central portion in the beam-to-beam direction on the upper surface of the first blower group 1A provided so as to span the upper part of the column reinforcement 30B and the upper part of the column reinforcement 30G, and the upper part of the column reinforcement 30D and the column reinforcement. First blower group 1B provided so as to be hung over the upper part of 30I; provided so as to be hung over the central portion in the beam-to-beam direction on the upper surface of 1A, the upper part of the column reinforcement 30F, and the upper part of the column arrangement 30K. The second blower group 2A and the second blower group 2A are provided back to back so as to span the central portion in the inter-column direction on the upper surface of the first blower group 1B.

In the first blower group 1A; 1B, the installation portion 1C is attached to the upper end of the column reinforcement 30 via an attachment (not shown), and in the second blower group 2A, the installation portion 2C is attached (not shown). It is attached to the installation portion 1C of the first blower group 1A; 1B via a tool.
Further, on the ground, a plurality of first blowers 1; 1 ... Are installed side by side in a horizontal row on the installation portion 1C to assemble the first blower group 1A; 1B, and a plurality of second blowers in a horizontal row on the installation portion 2C. After assembling the second blower group 2A by arranging 2; 2 ... side by side, if these first blower group 1A; 1B and the second blower group 2A are lifted by a crane or the like and installed on the upper part of the column reinforcement 30. Good.

According to the rain blow-off device configured as described above, by driving the first blower group 1B; 1A of the first blower 1; 1 ... And the second blower group 2A of the second blower 2; 2 ... The winds from the blowers 1; 1 facing each other in the central part of the direction collide with each other to stir the air and raise the air and raindrops to make the raindrops smaller, and the smaller raindrops are placed back to back in the central part in the direction between the beams. The wind from the second blower 2; 2 ... Of each second blower group 2A blows away in the direction between both ends in the beam-to-beam direction.
Further, the winds from the blowers 1; 1 facing each other on both end sides in the beam-to-beam direction collide with each other to stir the air and raise the air and raindrops to make the raindrops smaller, and the reduced raindrops and the raindrops and the raindrops are made smaller. , Raindrops blown back to both ends in the beam-to-beam direction by each of the second blower groups 2A arranged back to back in the central part in the beam-to-beam direction, and the upper part of the column reinforcement 30B; 30D; 30F located in the second row in the beam-to-beam direction The wind from the second blower 2; 2 ... Of each second blower group 2A installed above the column reinforcement 30G; 30I; 30K located in the second row in the beam-to-beam direction further blows the air toward both ends in the beam-to-beam direction.

That is, as shown in FIG. 4, the raindrops T1; T1 that are crushed into small pieces by the collision of the winds from the first blower groups 1A; 1B facing each other in the central portion in the inter-beam direction; The second blower 2; 2 ... of the installed 2 blower group 2A is blown away in the direction of both ends in the beam-to-beam direction, and falls to both end sides in the beam-to-beam direction, from the central side in the beam-to-beam direction to the beam-to-beam direction. The raindrops blown off to both end sides and the raindrops falling on both end sides in the inter-beam direction face each other on the end side in the inter-beam direction. The winds from each blower 1; 1 collide with each other to crush them into small pieces. After the raindrops T2; T2, it is installed on the upper part of the pillar reinforcement 30B; 30D; 30F located in the second row in the beam-to-beam direction and the upper part of the pillar reinforcement 30G; 30I; 30K located in the second row in the beam-to-beam direction. By being blown to both ends in the beam-to-beam direction by the wind from the second blower 2; 2 ... Of each second blower group 2A, the beam-to-beam direction 3 span girder direction 2 surrounded by a plurality of pillar reinforcements 30; 30 ... Rain will not fall on the floor area of the span, and it will be possible to perform concrete placement work on the floor area in rainy weather. That is, it is possible to prevent rain from being mixed into the concrete, and it is possible to carry out the concrete placing work without deteriorating the performance of the concrete. Further, in rainy weather, the work of placing concrete on the lower side of the column reinforcement 30 can be performed in a wide range, and the delay in the construction period due to rainy weather can be suppressed.

A sheet 40 is stretched on the outer surface of the column reinforcements 30A; 30C; 30E and the outer surfaces of the column reinforcements 30H; 30J; 30L located at both ends in the beam-to-beam direction, and raindrops blown off to both ends in the beam-to-beam direction are concrete. It is preferable not to scatter around the casting site. In this case, it is preferable to use a sheet having excellent water absorption performance as the sheet 40.

In the embodiment, an example is shown in which the rain blow-off device to which the rain blow-off method is applied is used at the time of concrete placing work in rainy weather, but the rain blow-off device to which the rain blow-off method of the present invention is applied is provided outdoors. It can be installed in various places such as escalators, aisles, and other places to blow off rain, and it can also be used as a measure against heat stroke in summer.

1 1st blower, 1A; 1B 1st blower group, 2nd blower group, 2A 2nd blower group, 30 column reinforcement, X Area where rain does not want to fall.

Claims (2)

Above the area where you do not want to let rain fall, each first blower set so that the blowing direction faces upward,
The second blower that blows the raindrops that have become smaller due to the wind blown from each of the first blowers facing each other so as to collide with each other in the lateral direction.
Equipped with a,
The area where rain does not want to fall is the area to be placed concrete below the area surrounded by the four column reinforcements arranged so as to be located at the four corners of the quadrangle when viewed from directly above.
At the top of the four column reinforcements, each first blower group is provided so as to form a pair of opposite sides of the quadrangle, and one side of the remaining pair of sides of the quadrangle is formed. A second blower group is provided so as to be hung on the upper surface on the end side of each first blower group, or a second blower group is provided so as to be hung on the upper surface on the center side of each of the first blower groups. A rain blower that features a group. The rain blower according to claim 1 , wherein the second blower is installed above the first blower .

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