JPH0841969A - Drainage basin - Google Patents

Abstract

(57) [Summary] [Structure] A drainage basin 1 in which an extension pipe 3 is connected to an opening at an upper end of a drainage basin body 2, and a manhole cover 4 is attached to an upper end of the drainage basin 3, the extension pipe 3 being A plurality of connecting pipes 3 each having a pipe body having substantially the same diameter and substantially the same thickness are provided at the upper end surface and the lower end surface, and each of the connecting portions 3 has a U-shaped cross section.
They are connected by the expansion socket 32 having 3, 34. [Effect] When a conventional drainage basin is attached, a large number of pipes having different lengths but substantially the same diameter and substantially the same thickness are generated. The expansion pipes used in the expansion pipe 3 of the present invention may have different lengths as long as they have substantially the same diameter and thickness. Therefore, as the expansion pipe 31, conventionally, the pipe body generated when the drainage basin is attached can be used as the expansion pipe, and the resources can be effectively used,
The generation of dust is reduced.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a drainage basin.

[0002]

2. Description of the Related Art Conventionally, a drainage basin has a bottomed cylindrical drainage basin body with an extension pipe connected to the opening at the upper end thereof, and a manhole lid attached to the top end of the extension pipe so as to be exposed on the ground surface. In addition, an inflow port and an outflow port are provided at appropriate locations on the expansion pipe and the expansion pipe.A drain pipe is connected to this inflow port and the outflow port, the drainage flowing from the inflow port flows out from the outflow port, and the manhole cover is opened. To inspect and clean the inside of the drainage box. However, since the drainage basin body is buried in a depth suitable for connecting the drainage pipe, the distance between the drainage basin body and the ground surface is all different. Therefore, the lengths of the extension pipes attached between the drainage basin body and the manhole are all different.

Conventionally, as described in Japanese Utility Model Laid-Open No. 1-90889 and Japanese Utility Model Publication No. 5-27577, an extension pipe is attached on the main body of a drainage basin, and a manhole is placed on the extension pipe through a frame for receiving a lid. It has a lid attached. And, the expansion pipe attached to this drainage basin body is composed of a pipe body of approximately the same diameter and approximately the same thickness on the connection part of the U-shaped cross section of the expansion pipe alone, which has a connection part of U-shaped cross section at the upper end. It is formed by connecting a plurality of single expansion tubes each having a connecting portion at the upper end and having substantially the same diameter and the same thickness, such as inserting and connecting the lower end of the single expansion tube. If the distance between the drainage basin body and the manhole cover, that is, the length of the expansion tube is an integral multiple of this expansion tube single unit, it is sufficient to connect a plurality of expansion pipe single units, but usually this integer It does not double. In such a case, the length of the additional pipe is adjusted by cutting the lower end of the additional pipe to a proper length.

[0004]

However, when the drainage basin is constructed in this manner, a large number of pipes having different lengths and having substantially the same diameter and thickness obtained by cutting the lower end of the expansion pipe alone are generated. To do. Conventionally, this pipe has been discarded, but there is a problem that a lot of dust is generated and resources are wasted. Then, the objective of this invention is providing the drainage basin which can reuse the pipe body which cut | disconnected the lower end of the additional pipe.

[0005]

SUMMARY OF THE INVENTION The present invention has been made to achieve the above object, and a connecting pipe is connected to an opening at the upper end of a drainage box main body having a bottomed cylindrical body. In a drainage basin with a manhole cover attached to the upper end, a plurality of expansion pipes made of a tubular body having substantially the same diameter and substantially the same thickness have connection portions of U-shaped cross section at the upper end surface and the lower end surface, respectively. It is connected with an expansion socket.

[0006]

The expansion pipe used in the drainage basin of the present invention comprises a plurality of expansion pipes each having a pipe body having substantially the same diameter and substantially the same thickness, and a connection socket having a U-shaped cross section at each of the upper end surface and the lower end surface. It was connected with. That is, the pipes connected by the expansion socket may have any height as long as they have substantially the same diameter and substantially the same thickness. On the other hand, conventionally, when attaching a drainage basin, as described above, a large number of tubular bodies having substantially the same diameter and approximately the same thickness are generated although the lower end portion of the expansion pipe is cut at different heights.

Therefore, if the cut pipe is used as an expansion pipe and a plurality of the expansion pipes are connected to the expansion socket, the cut pipe of the additional pipe generated at the construction site can be reused as the expansion pipe. it can. Of course, it is also possible to manufacture an expansion pipe having approximately the same diameter and approximately the same thickness and connect it with an expansion socket to form an expansion pipe, or connect the manufactured expansion pipe and the cut expansion pipe with an expansion socket. It may be an additional tube.

[0008]

1 and 2 show an embodiment of the present invention. FIG. 1 is a partially cutaway explanatory view showing a drainage basin, and FIG.
It is an explanatory view showing a state in which piping is performed using the drainage basin.

In FIGS. 1 and 2, reference numeral 1 is a drainage basin, and this drainage basin 1 comprises a drainage basin body 2, a connecting pipe 3, a manhole lid 4 and a lid receiving frame 5. The drainage basin body 2 is a bottomed cylindrical body, and the upper end of the drainage basin body 2 is open,
A connection portion 21 having a U-shaped cross section is provided at the upper end of the side edge of the opening. Although the drainage basin shown in FIG. 1 is not provided with an inlet or an outflow pipe in the drainage basin body 2, an inlet or an outlet may be provided in the side wall of the drainage basin body 2 in advance, or at the time of construction. If necessary, the side wall may be provided with an inflow port or an outflow port.

The expansion pipe 3 comprises a plurality of expansion pipes 31 and a expansion socket 32. The expansion pipe 31 is a tubular body having approximately the same diameter and approximately the same thickness. The expansion socket 32 has connection portions 33, 3 having U-shaped cross sections on the upper end surface and the lower end surface, respectively.
4 Then, the lower end of the expanding pipe 31 is inserted into the connecting portion 33 having a U-shaped cross section of the expanding socket 32, and the upper end of the expanding pipe 31 one step lower is inserted into the connecting portion 34 having a U-shaped cross section, and so on. A plurality of the expansion pipes 31 can be connected with the expansion socket 32 to form the expansion pipe 3.

The manhole cover 4 is installed on the ground surface and comprises a plate 41 and a protrusion 42 provided on the lower surface of the plate 41. The lid receiving frame body 5 is provided with a connecting portion 51 having a U-shaped cross section on its lower end surface and a connecting portion 52 having a U-shaped cross section into which the protrusion 42 of the manhole cover 4 can be inserted. The side wall of the expansion tube 3 is not provided with an inflow port or an outflow port, but the side wall of the expansion tube 3 may be provided with an inflow port or an outflow port if necessary. 6 is a drainage channel provided on the side wall of the road. 7 is a drain pipe. 8 is a vertical gutter.

Next, the usage state of this drainage basin will be described.
A hole is dug at a predetermined position, the drainage box main body 2 is installed at a predetermined depth, and the lower end of the extension pipe 31 is inserted into the U-shaped cross section of the connecting portion 21 provided at the upper end of the drainage box main body 2 to drain water. The expansion pipe 31 is attached on the square body 2. Next, the upper end of the expansion pipe 31 is inserted into the U-shaped cross section of the connecting portion 34 provided at the lower end of the expansion socket 32, and the expansion socket 32 is attached to the upper end of the expansion pipe 31. The lower end of the next expansion pipe 31 is inserted into the U-shaped cross section of the connection portion 33 provided in the above, and the expansion pipe 31 is attached to the expansion socket 32.

In this manner, the expansion sockets 32 and the expansion pipes 31 are alternately mounted on the drainage basin body 2 one after another, and the expansion pipes 31 and the expansion pipes 31 are attached on the drainage basin body 2 as shown in FIG. The expansion tube 3 having a predetermined length and including the socket 32 is attached. If the last expansion pipe 31 is too long to reach the predetermined length, the lower end of the final expansion pipe 31 is cut to adjust its length.
This cut pipe can be used for the next drainage basin 1. Thus, by connecting a plurality of expansion pipes 31 with the expansion socket 32, the expansion pipe 3 having a predetermined length can be formed.
The length of the increasing pipe 31 may be arbitrary. Therefore, the connection pipe 31 may be a pipe that has been cut when the drainage basin was previously installed, or a newly manufactured pipe.

Next, the upper end of the expansion pipe 31 is inserted into the connecting portion 51 having a U-shaped cross section provided at the lower end of the lid reception frame 5, and the upper end of the expansion pipe 31 is fitted to the lid reception frame. 5
Attach. Next, as shown in FIG. 2, drainage grooves 6 and vertical gutters 8 provided on the side edge of the road are attached to the side walls of the drainage box main body 2 and the expansion tube 3 with a drainage pipe 7, and these drainage box main bodies are attached. 2 and the extension pipe 3 are connected to each other and finally connected to the drainage main, so that the rainwater in the drainage ditch 6 and the vertical gutter 8 flows to the drainage main through the drainage basin 1. At that time, if the drainage basin body 2 has an inflow port or an outflow port, the drainage pipe 7 is connected to an inflow pipe or an outflow pipe. If not, a hole is provided in the drainage basin body 2 or the extension pipe 3, The drain pipe 7 is connected to this hole. Finally, the manhole cover 4 is attached on the lid receiving frame 5, the soil is backfilled, and the attachment of the drainage basin 1 is completed.

[0015]

As is apparent from the above description, the expansion pipe used in the drainage basin of the present invention is a expansion socket in which a plurality of expansion pipes each having a tube body having a diameter and a thickness that are substantially the same in length are used. Since the connected pipes are connected to each other, a pipe body having substantially the same diameter and substantially the same thickness may be used as the expansion pipe. Therefore, it may be a tube body obtained by cutting the lower end of a conventional expansion tube alone, a tube body generated by the construction of the present invention, or a newly manufactured tube body. As described above, since pipes of various lengths can be used, there is no pipe to be discarded, and there is no waste of resources, which is advantageous.

[Brief description of drawings]

FIG. 1 is an explanatory view showing a drainage basin, showing an embodiment of the present invention.

FIG. 2 is an explanatory view showing a pipe using the drainage basin of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Drainage box 2 Drainage cell body 21 Connection part 3 Expansion pipe 31 Expansion pipe 32 Expansion socket 33 Upper connection part 34 Lower connection part 4 Manhole cover 42 Projection 5 Lid receiving frame 51 Connection part 52 Connection part

Claims (1)

[Claims] 1. In a drainage basin in which an extension pipe is connected to an opening at the upper end of a drainage basin body composed of a bottomed cylinder, and a manhole cover is attached to the upper end of the extension tubing, the extension pipes have almost the same diameter. A drainage basin, wherein a plurality of expansion pipes each having a tube body having the same thickness are connected by an expansion socket having a U-shaped cross-section connecting portion on each of an upper end surface and a lower end surface.