JPH0530283U - U-shaped groove for rainwater guidance - Google Patents

Abstract

(57) [Summary] (Corrected) [Purpose] The rainwater that flows into the U-shaped ditch can be used as groundwater by permeating it into the ground and circulating it toward the downstream. Extend the life of the groove. A U-shaped groove-shaped main body 6 is provided, a large number of small holes 9 are formed in a bottom wall of the main body, and a lower portion of one end portion in the longitudinal direction of the main body is closed by a partition wall 10, and a lower portion of the partition wall. To communication hole 11
To form.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a U-shaped groove for guiding rainwater.

[0002]

[Prior Art]

 As a conventional technique, as shown in FIGS. 4 and 5, a U-shaped concrete made by forming a slender U-shaped groove by a bottom wall 2 and side walls 3 and 3 standing upward from both sides of the bottom wall 2. There was a groove 1.

[0003]

[Problems to be solved by the device]

 In the above-mentioned conventional one, since the bottom wall 2 is linearly extended in the longitudinal direction and is not water-permeable, all rainwater flowing into the U-shaped groove 1 is guided toward the downstream side, The rainwater that has flowed into the U-shaped ditch 1 cannot be effectively used as groundwater, and the rainwater that has flowed into the U-shaped ditch 1 flows rapidly toward the downstream side. There was a drawback that the capacity of the drainage channel on the downstream side to be connected had to be increased. Further, when the gradient of the installed U-shaped groove 1 becomes large, the flow velocity of rainwater flowing through the U-shaped groove 1 becomes very fast when the amount of precipitation increases, and the side wall of the bent U-shaped groove collides violently. , There was a defect that this part was damaged or scattered to the outside. It is an object of the present invention to obtain a novel rainwater guiding U-shaped groove that solves the above-mentioned drawbacks.

[0004]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention provides an elongated U-shaped groove-shaped main body composed of a bottom wall and side walls standing upright from both sides thereof, and forming a large number of small holes in the bottom wall of the main body. A partition wall closes the lower part of one end of the main body in the longitudinal direction, and a communication hole is formed in the lower part of the partition wall.

[0005]

[Advantageous Effects] Since the present invention has the above-described configuration, the rainwater that has flowed into the main body flows toward the downstream while staying inside the main body by the partition wall, and a part of the rainwater flows out downward from the small holes. Will penetrate into the ground.

[0006]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. In the drawings, FIG. 1 is a front sectional view showing an embodiment of the present invention, FIG. 2 is a II-II sectional view thereof, and FIG. 3 is a side sectional view showing another embodiment. In FIGS. 1 and 2, reference numeral 5 denotes a U-shaped groove made of reinforced concrete, which forms a slender U-shaped groove-shaped main body 6 by a bottom wall 7 and side walls 8 standing upright from both sides thereof. A large number of small holes 9 are formed in the bottom wall 7 of the main body 6. Further, a partition wall 10 is formed upright at one longitudinal end (right end in FIG. 2) of the main body 5, and the longitudinal end of the main body 5 is closed by the partition wall 10. The height H of the upper end 10a of the partition wall 10 is set to about 2/3 of the depth T of the main body 5, and the lower end 10b of the partition wall 10 is located above the bottom surface of the main body 5 to communicate with the lower portion of the partition wall 10. The hole 11 is formed. The communication hole 11 may be formed by extending the lower end 10b of the partition wall 10 to the bottom surface of the main body 5 and forming a large number of circular holes at the lower end portion of the partition wall 10. Of this partition wall 10

As shown in FIG. 2, the U-shaped groove 5 is installed in the ground 12 with the partition wall 10 facing the downstream side and covered with water-permeable jersey, sand or the like.

As shown in FIG. 3, the above-described bottom portion 7 is formed into a corrugated bottom portion 7 ′ that is orthogonal to the longitudinal direction, and small holes 9 ′ are formed in each valley portion of the bottom portion 7 ′. Good.

According to the above-described embodiment, the rainwater that has flowed into the main body 6 is blocked by the partition wall 10, passes through the partition wall 10 while staying in the main body 6, and a part of the rainwater is separated from the partition wall. It flows through the communication hole 11 formed in the lower part of 10 and flows downstream. In this case, the rainwater accumulated in the main body 6 flows out from the small holes 9 (9 ') and permeates into the ground. As a result, the flow rate of the rainwater that has flowed into the main body 6 decreases and the amount thereof gradually decreases.

[0010]

[Effect of the device]

 As is clear from the above description, in the present invention, the rainwater flowing into the U-shaped ditch is guided to the downstream while permeating into the ground, so that the rainwater in the U-shaped ditch is used as groundwater. Can be utilized. Further, since the amount of rainwater and the flow velocity in the U-shaped groove are reduced, the life of the U-shaped groove is extended and the capacity of the drainage channel on the downstream side can be reduced.

[Brief description of drawings]

FIG. 1 is a front sectional view showing an embodiment of the present invention.

FIG. 2 is a sectional view taken along the line II-II in FIG.

FIG. 3 is a sectional view corresponding to FIG. 2 showing another embodiment.

FIG. 4 is a front sectional view showing a conventional example.

5 is a sectional view taken along line VV of FIG.

[Explanation of symbols]

 5 U-shaped groove 6 Main body 7 Bottom wall 8 Side wall 9 Small hole 10 Small hole 10a Upper end 11 Communication hole 12 Ground

Claims (1)

[Scope of utility model registration request] 1. A main body in the form of an elongated U-shaped groove, which comprises a bottom wall and side walls which stand upright from both sides of the main body, and a large number of small holes are formed in the bottom wall of the main body. A U-shaped groove for guiding rainwater, characterized in that the lower part of the partition wall is closed by a partition wall, and a communication hole is formed in the lower part of the partition wall.