JPH078477U - Concrete blocks for waterways - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a waterway block that can easily enter and leave a waterway and has excellent safety. [Constitution] A water channel concrete block 11 capable of forming a water channel R by connecting blocks 11 to each other.
In the above, the step portion 12 is provided on the inner surface of the block side wall 13.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a concrete block for a water channel (hereinafter simply referred to as a block for a water channel) capable of forming a water channel by connecting blocks to each other. In particular, it relates to a waterway block that is easy to enter and leave the waterway and has excellent safety.

[0002]

[Prior art]

 Conventionally, waterway blocks are often used when constructing waterways for irrigation, agriculture, industry, or housing. As the water channel block 1, for example, as shown in FIG. 7, there is one having a U-shaped or L-shaped cross section, which is sequentially arranged in a trench excavated to construct a water channel. A water channel R is formed by connecting these blocks to each other.

[0003]

[Problems to be solved by the device]

 However, in a waterway formed by connecting a number of conventional waterway blocks, since the waterway block has a U-shaped cross section or an L-shape, as shown in FIG. It is upright. Therefore, when it is necessary to descend into the waterway, such as when cleaning the waterway or dropping something in the waterway, or when playing in the water, a ladder or the like is installed on the side wall of the waterway. I had to go up and down. Also, when a person, especially an infant or an elderly person accidentally falls into the waterway when the water level rises, the side wall is upright, so the fallen person may be washed away without being caught, which may lead to an unexpected situation. It was

The present invention has been made in view of such circumstances, and an object of the present invention is to provide a waterway block that can easily enter and leave the waterway and is excellent in safety. .

[0005]

[Means for Solving the Problems] In order to achieve the above object, a device according to claim 1 is a waterway block in which a waterway can be formed by connecting blocks to each other, and an inner surface of a side wall of the block is formed. The gist is a waterway block characterized by the provision of stairs. The stairway portion in the present invention means a step provided on the inner surface of the side wall, and its width and height, the number of steps, the location on the side wall surface of the block, the ascending / descending direction of the step, its shape, etc. are particularly limited. Not a thing.

The invention according to claim 2 has as its gist a waterway block characterized in that the waterway block has a substantially U-shaped cross section, and a step portion is provided on at least one of the inner surfaces of the side walls thereof.

The invention according to claim 3 has as its gist a waterway block characterized in that the waterway block has a substantially L-shaped cross-section, and a step portion is provided on the inner surface of the side wall thereof.

The invention according to claim 4 has as its gist a waterway block characterized in that a recessed lead-in portion is provided on a side wall of the waterway block, and a step portion is provided in the lead-in portion.

[0009]

[Action]

 In the waterway block according to the first aspect, since the step portion is provided on the inner surface of the side wall of the block, the waterway having the step portion on the side wall can be formed by connecting the blocks to each other. The stairs provided on the inner surface of the side wall of the block serve as a step for raising and lowering those that need access to the waterway, and a catching part (lifeline) for those that accidentally fall into the waterway.

In the water channel block according to the second aspect, since the step portion is provided on at least one of the inner surfaces of the side walls of the U-shaped block, when the blocks are connected to each other, both side walls or one of the side walls is formed. A waterway with stairs is formed on the side wall of the.

In the waterway block according to the third aspect of the present invention, since the block has an L-shaped cross section and the step portion is provided on the inner surface of the side wall of the block, the step is formed in the trench excavated to construct the waterway. When the blocks are connected to each other in the width direction and in the length direction of the groove, and the blocks are connected to each other in the width direction and the length direction, a waterway having a step on both side walls is formed. It has become. In addition, by arranging the waterway block of the present invention on one side facing in the width direction and the conventional waterway block without a stairway portion on the other side, and connecting them, the stairway is formed on one side wall. A canal with parts is being formed.

In the waterway block according to the fourth aspect, since the recessed recess portion is provided on the side wall of the block and the step portion is provided in the recessed portion, the waterway blocks are connected to each other. When the formation is made, the stairs are prevented from jumping out into the running part of the waterway.

[0013]

【Example】

 Hereinafter, a waterway block of the present invention will be described in detail according to an embodiment shown in the drawings. It should be noted that the embodiment described below is merely one embodiment of the present invention and is not limited to this. The water channel block 11 shown in FIG. 1 has a U-shaped cross section, and a step portion 12 is provided on the inner surface of one side wall 13 of the block 11. In the embodiment shown in FIG. 1, a plurality of the water channel blocks 11 are arranged in the groove M dug down for constructing the water channel along the length direction of the groove M, and the water channel blocks 11 are connected to each other. By doing so, the water channel R is formed. The waterway block 11 of FIG. 1 is formed in a size of 200 cm in length (length), 300 cm in width, and 200 cm in depth, and the side wall outer surface of the block 11 is shown in FIG. A plurality of such dents 17 are provided, and the amount of concrete required for the block is reduced and the amount of concrete is reduced. Further, a convex portion (not shown) is provided on one end side where the water channel block 11 is connected, and a concave portion (not shown) corresponding to the shape of the convex portion is provided on the other end side. Therefore, when a plurality of water channel blocks 11 are arranged, the convex portions and the concave portions of the adjacent blocks are engaged with each other, and the coupling force between the blocks is further increased.

A staircase portion 12 is provided on the inner surface of one side wall 13 of the two side walls 13 standing upright from the low floor surface of the water channel block 11. As shown in FIG. 1, the staircase portion 12 is composed of six steps 14 having a height of about 35 cm and a depth of about 15 cm, and a ridge 15 for preventing slippage is provided on the edge of the step 14 in order to prevent slippage. . Since the protrusions 15 for preventing slippage are provided on the step 14, soil or the like is likely to stay on the upper surface of the step 14. Therefore, grass grows on the upper surface of the step 14 as shown in FIG. 1, and a natural landscape appears in the waterway. In addition, there is a cutout portion without the protrusion 15 in the connecting portion of the block 11, and an opening 16 is formed together with the cutout portion of the adjacent block, and the water accumulated on the upper surface of the step 14 flows out from this opening 16. ing. Note that, as shown in FIG. 2, the staircase portion 12 may be one in which the staircase portion 12 is provided on each of the inner surfaces of the two side walls 13 which are upright from the low floor surface of the block.

The water channel block 11 shown in FIG. 3 has an L-shaped cross section, and a step portion 12 is provided on the inner surface of the side wall 13 of the block 11. In the embodiment shown in FIG. 3, a block 11 of the present invention and a block 21 having a conventional upright wall surface having an L-shaped cross section are opposed to each other in the width direction in a groove excavated for constructing a water channel. Are arranged along the length direction of the groove to connect the adjacent water channel blocks 11 to each other and the conventional water channel block 21 to each other, and the foot portions 11a of the two types of blocks 11 and 21 facing each other. , 21a, concrete 22 is placed in the space between the two, and two types of blocks 11 and 21 are connected via the concrete 22 to form a water channel R having a step portion 12 on the inner surface of one side wall 13. is there. In this way, the block with an L-shaped cross section can be adjusted in width by placing concrete between the blocks that oppose each other according to the width of the water channel, and it is possible to sufficiently cope with sudden design changes.

It should be noted that, as shown in FIG. 4, any of the waterway blocks arranged in the trench excavated for constructing the waterway so as to face each other in the width direction may be the block 11 of the present invention. A water channel R having a step portion 12 on both side walls 13 can be formed therein. Also, FIG. 3 shows an example in which concrete blocks are cast to connect opposite blocks. When the waterway block of the present invention is used in this way, a part of the block projects from the foot portion of the block. It is also possible to embed reinforcing bars (not shown) like this to strengthen the bond strength between blocks and strengthen the anchoring strength of concrete.

FIG. 5 shows the water channel block 11 in which the step portion 12 on the inner surface of the side wall 13 is provided in the length direction of the block 11. In this waterway block 11, the proportion of the staircase portion 12 in the width direction of the block 11 can be reduced, and a running water portion having a wider width can be secured accordingly.

As shown in FIG. 6, a recessed lead-in portion 30 may be provided on the side wall 13 of the block 11 and the step portion 12 may be provided in the lead-in portion 30. In this case, when the water channel R is formed by connecting the water channel blocks 11, the staircase portion 12 does not project into the water channel portion of the water channel R, and the width of the water channel portion is not narrowed.

[0019]

[Effect of device]

 In the waterway block according to the first aspect, since the step portion is provided on the inner surface of the side wall of the block, it is possible to form a waterway having the step portion on the side wall by connecting the blocks to each other. ing. The stairs provided on the inner surface of the side wall of the block serve as a step for raising and lowering those that need access to the waterway, and a catching portion (lifeline) for those that accidentally fall into the waterway. For this reason, this waterway block can be easily moved in and out of the waterway and is excellent in safety.

In the waterway block according to the second aspect, since the step portion is provided on at least one of the inner surfaces of the side walls of the block having a substantially U-shaped cross section, when the blocks are connected to each other, both sides are It is possible to form a canal with a step on the wall or one side wall.

In the waterway block according to the third aspect of the present invention, the block has a substantially L-shaped cross section, and since the step portion is provided on the inner surface of the side wall of the block, the step is formed in the groove excavated to construct the waterway. When the blocks are connected to each other in the width direction and in the length direction of the groove, and these blocks are connected to each other in the width direction and the length direction, it is possible to form a waterway having a step on both side walls. it can. In addition, the waterway block of the present invention is arranged on one side facing in the width direction, and the conventional waterway block without stairs is arranged on the other side, and by connecting them, one side wall is formed. It is possible to form a waterway having stairs.

In the waterway block according to the fourth aspect, since the recessed recessed portion is provided on the side wall of the block and the step portion is provided in the recessed portion, the waterway blocks are connected to each other. When the ridge is formed, the stairs do not project into the running part of the waterway, and the width of the running part is not narrowed.

In the waterway block according to the fourth aspect, since the recessed recess portion is provided on the side wall of the block and the step portion is provided in the recess portion, the width of the running water portion is restricted by the step portion. Never receive.

[Brief description of drawings]

FIG. 1 is a perspective view showing a water channel formed by connecting water channel blocks having a U-shaped cross section according to the present invention.

FIG. 2 is a cross-sectional view showing another embodiment of the water channel formed by connecting the U-shaped water channel blocks of the present invention.

FIG. 3 is a cross-sectional view showing a water channel formed by connecting the L-shaped water channel block of the present invention and a conventional L-shaped water channel block.

FIG. 4 is a cross-sectional view showing a water channel formed by arranging L-shaped water channel blocks of the present invention so as to face each other and connecting them.

FIG. 5 is a perspective view showing another mode of the step portion of the water channel block having an L-shaped cross section according to the present invention.

FIG. 6 is a perspective view showing a water channel formed by using a block in which a concave drawing portion is provided on a block side wall.

FIG. 7 is a perspective view showing a water channel formed using a conventional water channel block.

[Explanation of symbols]

 11 ... Waterway block 12 ... Stairs 13 ... Side wall

Claims (4)

[Scope of utility model registration request] 1. A concrete block for a water channel in which a water channel can be formed by connecting the blocks to each other, wherein a stairway portion is provided on an inner surface of a side wall of the block. 2. The concrete block for a water channel according to claim 1, wherein the concrete block for a water channel has a substantially U-shaped cross section, and a step portion is provided on at least one of the inner surfaces of the side walls thereof. 3. A concrete block for a waterway has a substantially L-shaped cross section.
The concrete block for a waterway according to claim 1, wherein the concrete block has a character shape and a step portion is provided on an inner surface of a side wall thereof. 4. The concrete block for a water channel according to claim 1, wherein a recessed recess is provided on a side wall of the concrete block for a water channel, and a step portion is provided in the recess.