JPH0434229Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a drainage ditch buried on a slope or in soft ground with the upper surface exposed for drainage.

BACKGROUND ART Conventional drainage ditches of this type are known, for example, as shown in FIGS. 6 to 8. The following description will be given based on the drawings. Reference numeral 1 denotes a drainage ditch that has approximately the same shape as the front, and is made in an elongated shape using polyethylene as the main material. This drainage ditch 1 is buried in a recess 2 formed in the ground such as a slope or soft ground with its upper surface exposed. 3 is the drain groove 1
These protrusions are formed on the inner surface of the drain groove 1 over the bottom surface and both side surfaces thereof, and are oriented in a direction perpendicular to the longitudinal direction of the drain groove 1 in a plane, and are formed at appropriate intervals in the longitudinal direction of the drain groove 1. Reference numeral 4 denotes metal angles for preventing lifting, which are attached by bolts 5 so as to come into contact with the lower surface of the drain groove 1 at multiple locations in the longitudinal direction of the drain groove 1, and both ends protrude from both sides of the lower surface of the drain groove 1. It is installed like this. Reference numeral 6 denotes deformation-preventing metal angles that are stretched between the upper ends of both sides of the drain 1 at a plurality of locations in the longitudinal direction of the drain 1 in order to prevent the drain 1 from deforming due to lateral earth pressure. Reinforcing metal angles 7 are placed on both sides of the upper end of the drain groove 1 along the longitudinal direction of the drain groove 1, and the ends of the deformation prevention angles 6 are stacked on top of the reinforcing angles 7. A deformation prevention angle 6 and a reinforcing angle 7 are fixed with bolts 8 to both sides of the upper end of the drain groove 1. Note that the protruding portion 3 is provided to suppress the flow rate of water when the drainage ditch 1 is provided on a slope.

Problems to be Solved by the Invention In the above-mentioned conventional drain 1, since the protrusion 3 is oriented in a direction perpendicular to the longitudinal direction of the drain 1, dirt and pebbles contained in the water flowing through the drain 1 are removed. There was a problem in that the particles tend to accumulate in front of the protrusion 3. Furthermore, in order to attach the deformation prevention angle 6, a reinforcing angle 7 must be prepared and attached to the drainage ditch 1 on site, resulting in poor workability.

The present invention solves these problems by allowing earth, sand, pebbles, etc. to flow out naturally even if they try to accumulate in front of the protruding part of the drainage ditch 1, and also improves construction workability on site. The purpose is to

Means to Solve the Problem In order to solve this problem, the present invention is a drainage drain that is molded from resin and has a front shape of approximately 1/4" and has protruding pieces on both sides of the upper end that protrude outward along the longitudinal direction and rising pieces that rise from the tips of these protruding pieces. The bottom surface on the inside side has a flat shape of V that suppresses the flow rate of drainage and collects soil and pebbles in the center of the bottom surface.
A reinforcing metal angle is embedded across the protruding pieces and rising pieces on both sides of the upper end, and metal angles for preventing deformation are hung between both upper ends at multiple points in the longitudinal direction, with both ends of this angle overlapping the top of the reinforcing metal angle embedded parts and fixed with bolts.

Effect With this configuration, the protrusions formed at appropriate intervals in the longitudinal direction on the bottom surface of the drainage ditch have a V-shaped planar shape, and the drain can be drained so that the V-shaped tips of the protrusions face downward in the water flow direction. By arranging grooves in the ground, water flows so that it collects in the valley in the center of the protrusion, and even if dirt, pebbles, etc. try to collect in front of the protrusion, the flow of water will prevent it from collecting in the valley. It flows in front of the adjacent protrusion on the lower side, and by repeating this operation, it can flow to the lower side. In addition, since reinforcing metal angles are embedded in the upper ends of both sides of the drain, there is no need to separately prepare reinforcing angles at the site, making it easier to install angles to prevent deformation. You can improve your performance. Furthermore, deformation during transport of the drain to the site can be prevented by the reinforcing angle embedded in advance.

Embodiment Hereinafter, an embodiment of the present invention will be described based on the drawings.

In Figures 1 to 5, reference numeral 11 denotes a drainage ditch with a roughly shaped front view, and is made of polyethylene as a main material in a long shape.
An overhanging piece 1 that projects outward along the longitudinal direction of the
2 is integrally provided, and a rising piece 13 rising from the tip of this projecting piece 12 is also integrally provided. Further, on the inner surface of the drain groove 11, protrusions 14 are formed at appropriate intervals in the longitudinal direction of the drain groove 11, extending over the bottom surface and both side surfaces.
This protrusion 14 is formed to have a V-shaped planar shape on the bottom surface of the drain groove 11.
Water flowing through the V-shaped protrusion 14 encounters resistance when it hits the trough 14a of the V-shaped protrusion 14, thereby suppressing the flow rate of drainage.

Further, the drain groove 11 has a connecting part 15 formed at one end in the longitudinal direction, which has a slightly larger internal space than the other parts, and there is a gap between the inner surface of the connecting part 15 and the inner surface of the other part. A step 16 is formed in the area. L-shaped metal angles 17 for reinforcement are provided at the upper ends of both sides of the portion other than the connecting portion 15, spanning the overhanging piece 12 and the rising piece 13.
is embedded. Reference numeral 18 indicates holes for bolt insertion formed in the overhanging piece 12 of the connecting portion 16, and reference numeral 19 indicates holes formed at appropriate intervals in the longitudinal direction of the drainage grooves 11 in the overhanging piece 12 in other portions than the connecting portion 15. said angle 17
This is a hole for inserting a bolt, which is formed through the hole. Reference numeral 20 denotes an L-shaped metal angle for preventing floating that is attached so as to come into contact with the lower surface of the drain groove 11 at multiple locations in the longitudinal direction of the drain groove 11. The hole 20a of the angle 20 is applied to the embedded nut 21, and a bolt 22 is screwed into the nut 21 from below the angle 20 to tighten and fix the angle 20. 23
is an L-shaped metal angle for preventing deformation that is spanned between the upper ends of both sides of the drain groove 11 at multiple locations in the longitudinal direction of the drain groove 11;
The hole 23a at the end of the bolt insertion hole 1
9, and is tightened and fixed with bolts 24 and nuts 25 from above and below the projecting piece 12.

Furthermore, as shown in FIG. 4, the drain grooves 11 are connected to each other by placing the other longitudinal end of the other drain groove 11 on the connecting portion 15 at one longitudinal end of one of the drain grooves 11. This hole 1 is aligned with the hole 18 in the connecting portion 15 of the groove 11 and the hole 19 at the other end in the longitudinal direction of the other drainage groove 11.
This is done by tightening and fixing with bolts 26 and nuts 27 from above and below the overlapping portion of 8 and 19.

The drainage ditch 11 configured as described above is buried in a recess 28 formed in the ground such as a slope or soft ground with the upper surface exposed. At this time, the protrusion 14 is buried so that the V-shaped tip faces downward in the water flow direction.

The drainage ditch 11 buried in the recess 28 in the ground is prevented from lifting up by the lifting prevention angle 20 and is held in a fixed position.
Moreover, even if earth pressure is applied from the sides, deformation is prevented by the deformation prevention angle 23. Also,
Water flowing through the drain 11 encounters resistance when it hits the trough 14a of the V-shaped protrusion 14, and as a result, even if the drain 11 is installed on a slope, the flow rate of the drain can be suppressed. Moreover, the water flows to collect in the valley 14a at the center of the protrusion 14, and even if dirt, pebbles, etc. try to accumulate in front of the protrusion 14, the water flow will flow to the valley 14a.
4a and flows in front of the adjacent protrusion 14 on the lower side, repeating this operation and flowing toward the lower side.

Effects of the invention As described above, according to the invention, the protrusions formed at appropriate intervals in the longitudinal direction on the bottom surface of the drain have a V-shaped planar shape, and the tips of the V-shaped protrusions extend in the direction of water flow. By arranging the drainage ditch in the ground so that it faces downward, water flows so that it collects in the valley in the center of the protrusion, and even if dirt or pebbles accumulate in front of the protrusion, the water will not flow. The water gathers in the trough and flows in front of the adjacent protrusion on the lower side, and by repeating this action, it can flow to the lower side. In addition, because reinforcing metal angles are embedded in the upper ends of both sides of the drain, there is no need to separately prepare reinforcing angles at the site, making it easier to install angles to prevent deformation. You can improve your performance. Furthermore, deformation during transportation of the drain to the site can be prevented by the reinforcing angle embedded in advance.

[Brief explanation of the drawing]

Figures 1 to 5 show an embodiment of the present invention, in which Figure 1 is a perspective view of a drain, Figure 2 is a vertical sectional front view of the drain at the deformation prevention angle attachment part, and Figure 3 is a front view of the drain at the angle attachment part for preventing deformation.
The figure is a longitudinal sectional front view of the drain groove at the angle attachment part for preventing uplift, FIG. 4 is a longitudinal sectional side view of the connecting part of the drain grooves, FIG.
Figures to Figures 8 show conventional examples, with Figure 6 being a perspective view of the drain, Figure 7 being a longitudinal sectional front view of the drain at the angle attachment part for preventing deformation, and Figure 8 being a plan view of the drain. It is a diagram. 11... Drainage ditch, 12... Overhanging piece, 13...
...Rising piece, 14...Protrusion, 14a...Trough, 15...Connection, 17...Metal angle for reinforcement, 18, 19...Hole, 20...Metal angle for preventing lifting , 23...Metal angle for preventing deformation, 24...Bolt, 25...Nut, 28...Recess.

Claims (1)

[Scope of utility model registration request] The front shape is almost a shape, and the upper end has an overhanging piece that protrudes outward along the longitudinal direction on both sides, and a rising piece that rises from the tip of the overhanging piece is molded with resin, and the bottom surface on the inner side has a longitudinal V-shaped planar protrusions are formed at appropriate intervals to suppress the flow rate of drainage and collect earth, sand and pebbles in the center of the bottom, and reinforcing metal protrusions are provided across the overhanging pieces and rising pieces on both sides of the upper end. A drainage ditch in which an angle is embedded, a metal angle for preventing deformation is hung between the upper ends of both sides at multiple locations in the longitudinal direction, and both ends of the angle are overlapped on top of the embedded part of the reinforcing metal angle and fixed with bolts. .