JPH11193569A - Drainage basin - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a drainage basin having a structure, in which the axial center of the connection end of a drainage branch pipe is brought maximally close to the axis of a drainage main pipe, and a smooth flow at the confluent time to a drain main flow is ensured and a back flow by an overflow at the confluent time and the adhesion of dirt, etc., onto the wall inside of a cleaning pipe can be avoided. SOLUTION: The end face of the end connection 4A of a drainage branch pipe 4 is formed in a surface crossed at an angle of 45 deg. to the axis of a drainage main pipe 2. The axis of at least a water service pipe section 4B constituting a branch base section with the drainage main pipe 2 is formed so as to be crossed at an angle of 42 deg. or less, preferably an angle from 40 deg. to 30 deg. to the axis of the drainage main pipe 2, and the end connection 5A of a joint pipe 5 rotatably connected to the end connection 4A of the drainage main pipe 4 is rotated in the parallel direction or the orthogonal direction to the axis of the drainage main pipe 2 and set.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drainage basin mainly used for sewage pipes, and more particularly to an upstream connection port and a downstream connection port of a drain main pipe at both ends, and a cleaning pipe connection port at an upper portion. A drain branch pipe is branched and formed on a side of the formed main body in a direction intersecting with the axis of the drain pipe main body, and a connection pipe formed of a bent pipe is rotatably connected to a connection port of the drain branch pipe. The present invention relates to an improvement of a drainage basin which is connected and can be freely set by rotating an axis of a connection port of the joint pipe in a direction parallel or orthogonal to an axis of the drainage main pipe.

[0002]

2. Description of the Related Art Japanese Patent No. 2594373, Japanese Patent No. 2614964, and the like.
And Japanese Patent No. 2652329. These conventional drainage basins are common in that each of the drainage basins has a structure in which a drainage branch pipe is branched and formed in a direction of 45 degrees with respect to the axis of the drainpipe main body at a side portion of the basin body. The drainage branch pipe is rotatable in a direction parallel or perpendicular to the axis of the drainage main pipe through a rotatable joint pipe formed of an elbow pipe with respect to the pipe, and can be set freely.

[0003]

However, if the drainage branch pipe has a structure in which the drainage branch pipe is formed so as to branch at 45 degrees with respect to the axis of the drainage pipe main body as in the above-mentioned conventional drainage basin, the drainage branch pipe will not be drained. There is a limit to achieving the demand for compactness, which is one of the purposes of using this type of drainage basin, because it protrudes greatly from the outer wall of the pipe body. Also, drainage flowing from the 45 ° direction through the drain branch pipe and drainage flowing from the drain pipe body are:
There is a problem that a collision occurs in the vicinity of the inner wall of the upper cleaning tube, which is relatively large, and forms a vortex, so that dirt and dirt easily adhere to the inner wall of the cleaning tube and hinder smooth outflow of drainage.

The present invention has been made based on the above circumstances, and an object thereof is to make the axial center of the connection port of the drain branch pipe as close as possible to the axis of the drain main pipe. An object of the present invention is to provide a drainage basin having a structure capable of securing a smooth flow at the time of merging with a main drainage stream and avoiding backflow due to disturbance at the time of merging and attachment of dirt and the like to the inner wall of the cleaning pipe.

[0005]

For this reason, in the drainage basin of the present invention, as shown in the first embodiment of FIGS. 1 and 2, the upstream connection port 2A and the downstream connection port of the drain main pipe 2 are provided at both ends. A drain branch pipe 4 is formed by branching the mouth 2B on the side of the basin body 1 having the cleaning pipe connection port 3A formed on the upper side in a direction intersecting the axis of the drain pipe main body 2. Connection port 4A
Is connected rotatably to a joint pipe 5 composed of a bent pipe, and the axis of the connection port 5A of the joint pipe 5 is turned freely in a direction parallel or orthogonal to the axis of the drain main pipe 2 so as to be freely settable. In the drainage basin, the drain branch pipe 4 has an end face of the connection port 4A formed at a surface that intersects with the axis of the drain main pipe 2 at an angle of 45 degrees, and branches with the drain main pipe 2. The axis of at least the water supply portion 4B constituting the base is at an angle of 42 degrees or less, preferably 40 degrees, with respect to the axis of the drain main pipe 2.
It is characterized in that it is formed so as to intersect at an angle of degrees to 30 degrees. Therefore, as the joint pipe 5, 4
Use a 5 degree elbow tube. As described above, in the present invention, although the drain branch pipe 4 is formed at an angle of 42 degrees or less with respect to the axis of the drain main pipe 2,
By using a 45-degree elbow pipe, it is possible to rotate in a direction perpendicular to a direction parallel to the axis of the drain main pipe 2.

As shown in the first embodiment of FIGS. 1 and 2, the drain branch pipe 4 projects from a water supply portion 4 B constituting a branch base with the drain main pipe 2 and an outer wall of the drain main pipe 2. The projecting portion 4C is formed so that the axis thereof intersects the axis of the drain main pipe 2 at an angle of 42 degrees or less, preferably 40 to 30 degrees, and the connection port 4A of the drain branch pipe 4 is At least one of the inner and outer peripheral wall surfaces is circular so that the joint pipe 5 is rotatably connected to be rotatable in a direction parallel or orthogonal to the axis of the drain main pipe 2 so as to be freely set. It can be formed into a ring shape.

As shown in FIG. 3 and FIG. 4 according to the second embodiment, the drain branch pipe 104 has at least the axis of the water supply portion 104 B constituting the branch base with the drain main pipe 102. The protruding portion 104 is formed so as to intersect with the axis at an angle of 42 degrees or less, preferably at an angle of 40 degrees to 30 degrees, and is continuous with the tip connection port 104A.
The axis of C is bent and formed into a curved shape so as to form an angle of 45 degrees with the axis of the drain main pipe 102.
So that the connection port 104A of the joint pipe 105 is rotatably connected to the joint pipe 105 so that the connection port 105A of the joint pipe 105 can be set freely by rotating in a direction parallel or orthogonal to the axis of the drain main pipe 2. can do.

According to the above construction, the length of protrusion of the drain branch pipe from the drain main pipe can be made as small as possible, and the drainage basin for residential land in which the inflow direction of drainage can be changed according to the type of use. Can be made more compact. Moreover, for the main drain,
Since the drain branch pipe is formed so as to be obliquely connected at an angle of 42 degrees or less, preferably at an angle of 40 degrees to 30 degrees toward the downstream side of the main drain, a smooth merge can be achieved, In addition, it is possible to avoid backflow due to turbulence at the time of merging and adhesion of dirt and the like to the inner wall of the cleaning pipe.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be specifically described below with reference to the drawings. 1 and 2 show the first embodiment, and the first embodiment will be described with reference to FIG. In this drainage basin, the upstream connection port 2A and the downstream connection port 2B of the drain main pipe 2 are provided at both ends, and the drain pipe main body 2 having the connection port 3A of the cleaning pipe 3 formed on the upper side thereof.
The drainage branch pipe 4 is branched and formed in a direction intersecting with the axis of the drainage branch pipe. A joint pipe 5 formed of a bent pipe is rotatably connected to the connection port 4A of the drainage branch pipe 4. The axis of the connection port 5A of the joint pipe 5 is turned freely in a direction parallel or orthogonal to the axis of the drain main pipe 2 so that the axis can be set freely, and the direction of the drain branch pipe connected to the connection port 5A of the joint pipe 5 can be changed. The setting is made in a direction parallel to or perpendicular to the axis of the drain main pipe 2 for adjustment.

However, in the first embodiment, the drain branch pipe 4
Is a water supply part 4 forming a branch base with the drain main pipe 2.
B and the axis of the projecting portion 4C protruding from the outer wall of the drain main pipe 2 are at an angle of 42 degrees or less, preferably 40 to 30 degrees with respect to the axis of the drain main pipe 2, and 30 degrees in the first embodiment. Are formed so as to intersect with each other. The center line in the diameter direction of the end face of the connection port 4 </ b> A of the drain branch pipe 4 is formed to intersect the axis of the drain main pipe 2 at 45 degrees. In this state, the end face of the connection port of the drain branch pipe becomes elliptical, so that the 45-degree elbow joint pipe 5 is rotatably connected to the connection port 4A of the drain branch pipe 4, and the axis of the drain main pipe 2 is rotated. At least one of the inner and outer peripheral wall surfaces is formed in an annular shape so that the inner and outer peripheral wall surfaces can be freely set by rotating in a direction parallel to or perpendicular to the direction. In the first embodiment,
Although the outer peripheral wall surface is formed in an annular shape, even if both the inner and outer peripheral wall surfaces are formed in an annular shape, the inner peripheral wall surface is formed in an annular shape, and the joint pipe 5 is rotatably inserted. You may. The water supply portion 4B is a semicircular groove (invert) continuous with the inner wall surface of the protruding portion 4C of the drainage branch pipe 4,
The upper half is open into the cleaning tube 3.

Further, the connection port 4A of the drain branch pipe 4 forms an insertion port, and the outer peripheral wall surface of the insertion port is formed into a large diameter in an annular shape. It is formed into a large-diameter circular port that can be freely inserted and retained. The joint pipe 5 is formed by a 45-degree elbow pipe.

The drainage basin is buried under a sewage manhole adjacent to a residential land or the like. The downstream connection port 2B of the drain main pipe 2 is connected to the sewer main pipe, and the upstream connection port 2A and the connection port 4A of the drain branch pipe 4 are connected to the domestic drain drain pipe. Fitting pipe 5
The connection port 5A is rotated and set in a direction parallel or orthogonal to the axis of the drain main pipe 2, and a drain branch pipe connected to the drain pipe is connected.

In this case, the main stream of the drainage flows down through the drainage main pipe 2, but the domestic wastewater flowing through the drainage branch pipe 4 flows at an angle of 30 degrees substantially along the flow of the drainage main pipe 2. As compared with the conventional case where the water supply is formed at an angle of 45 degrees, the branch water supply in the drainage basin can be made longer, the flow is smoother, and This can prevent backflow and adhesion of dirt to the inner wall of the cleaning pipe.

Furthermore, the length and width of the drainage branch pipe 4 protruding from the drainage main pipe 2 can be reduced, and the drainage branch pipe 4 can be formed more compactly and can be easily buried and used in a small land.

FIGS. 3 and 4 show a second embodiment. In the second embodiment, the drain branch pipe 104 is
At least a water supply portion 104B constituting a branch base with the second water supply portion 104B
2 is an angle of 42 degrees or less with respect to the axis of the drain main pipe 102, preferably an angle of 40 degrees to 30 degrees.
In this case, they are formed to intersect at an angle of 30 degrees. Also, the projection 104C is bent and formed so as to be continuous in a curved shape so that the axis of the protruding portion 104C connected to the distal end connection port 104A is at an angle of 45 degrees with respect to the axis of the drain main pipe 102. The end face of the connection port 104A of the drain branch pipe 104 is formed in a circular shape and intersects at an angle of 45 degrees with the axis of the drain main pipe 2. The connection port 104A of the drain branch pipe 104 is rotatably connected to the joint pipe 105 formed of a 45-degree elbow pipe, and the connection port 105A of the joint pipe 105 is parallel or orthogonal to the axis of the drain main pipe 2. To be freely settable. In the second embodiment, a groove 105B and a projection 104D which is slidably engaged with the groove 105B and allows a mutual rotation of 90 degrees are formed at a position facing the connection surface between the connection port 104A of the drain branch pipe 104 and the joint pipe 105. The connection port 104A of the drain branch pipe 104 rotates in the direction of 90 degrees and stops. Other configurations and operations are substantially the same as those of the first embodiment, and therefore, corresponding portions are denoted by the same reference numerals and detailed description thereof will be omitted.

[0016]

As described in detail above, the present invention makes it possible to reduce the length of protrusion of the drain branch pipe from the drain main pipe as much as possible, and to change the direction of inflow of drain water according to the type of use. There is an improved effect that the drainage basin for residential land can be made more compact. Moreover, since the drain branch pipe is formed so as to be obliquely connected to the drain main pipe at an angle of 42 degrees or less, preferably at an angle of 40 to 30 degrees toward the downstream side of the drain main stream. In addition, the water supply (invert) that forms the base of the drain branch pipe in the drainage basin can be taken longer, achieving a smooth merger. Also, backflow due to disturbance at the time of merger and dirt on the inner wall of the cleaning pipe can be achieved. Etc. can be avoided.

In the drainage basin of the present invention, the drainage branch pipe 4 is formed to branch at an angle of 42 degrees or less with respect to the axis of the drainage main pipe 2 so that a compact and smooth merging can be achieved. By using a 45-degree elbow pipe as the joint pipe 5, the drainage branch pipe can be set by rotating the drainage branch pipe in a direction perpendicular to the parallel direction with respect to the axis of the drainage main pipe 2.

[Brief description of the drawings]

FIG. 1 is a plan view showing a cross section of a part of a drainage basin according to a first embodiment of the present invention.

FIG. 2 is a plan view showing a part of the cross section for explaining the operation.

FIG. 3 is a plan view showing a part of a drainage basin according to a second embodiment of the present invention in section.

FIG. 4 is a plan view partially showing a cross section for explaining the operation.

[Explanation of symbols]

1, 101 Masu main body 2, 102 Drain main pipe, 2A, 102A Upstream connection port, 2B, 102B Downstream connection port, 3, 103
Cleaning pipe, 3A, 103A Cleaning pipe connection 4, 104 Drain branch pipe, 4A, 104A connection,
4B, 104B water supply part, 4C, 104C projecting part 5, 105 joint pipe 5A, 105A connection port

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Yoshikazu Hashizume 1-1-18 Kyobashi, Chuo-ku, Tokyo

Claims (5)

[Claims] 1. A direction intersecting the axis of the drain pipe main body with the upstream connection port and the downstream connection port of the drain main pipe at both ends, and the side of the box body having the cleaning pipe connection port formed at the top. A drain pipe is branched and formed, and a connection pipe formed of a bent pipe is rotatably connected to a connection port of the drain branch pipe, and an axis of the connection port of the connection pipe is in a direction parallel to an axis of the drain main pipe or In a drainage basin that can be set freely by rotating in the direction orthogonal to the drainage branch pipe, the end face of the connection port is formed on a surface that intersects at an angle of 45 degrees with the axis of the drainage main pipe, A drainage basin characterized in that an axis of at least a water supply part forming a branch base with the drainage main pipe is formed so as to intersect with an axis of the drainage main pipe at an angle of 42 degrees or less. 2. The drainage branch pipe has an axis of a water supply portion forming a branch base with the drainage main pipe and a projecting portion protruding from an outer wall of the drainage main pipe having an axis with respect to an axis of the drainage main pipe.
The connection port of the drainage branch pipe is formed such that at least one of the inner and outer peripheral wall surfaces is formed in a circular shape so that the joint pipe is rotatably connected. The drain basin according to claim 1, wherein the drain basin is provided. 3. The drainage branch pipe has an axis of a water supply part forming a branch base with the drainage main pipe and a projection part protruding from an outer wall of the drainage main pipe having an axis of 40 degrees with respect to an axis of the drainage main pipe.
The drainage basin according to claim 2, wherein the drainage basin is formed so as to intersect at an angle of from 30 degrees. 4. A direction intersecting the axis of the drain pipe main body with the upstream connection port and the downstream connection port of the drain main pipe at both ends, and the side of the box body having the cleaning pipe connection port formed at the top. A drain pipe is branched and formed, and a connection pipe formed of a bent pipe is rotatably connected to a connection port of the drain branch pipe, and an axis of the connection port of the connection pipe is in a direction parallel to an axis of the drain main pipe or In the drainage basin, which can be set freely by rotating in a direction perpendicular to the drainage branch pipe, at least an axis of a water supply part forming a branch base with the drainage main pipe has an axis with respect to an axis of the drainage main pipe. It is formed so as to intersect at an angle of 42 degrees or less, and is bent and formed into a curved shape such that the axis of the protruding portion continuous to the distal end connection port is at an angle of 45 degrees with respect to the axis of the drain main pipe. The connection port of the drain branch pipe and the joint pipe are rotatably connected to each other. Catch basin, characterized in that there. 5. The drain branch pipe is formed such that at least a water supply part forming a branch base with the drain main pipe intersects at an angle of 40 to 30 degrees with respect to an axis of the drain main pipe. The drainage basin according to claim 4, wherein the drainage basin is provided.