JP4117965B2 - Drainage - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a single drainage basin that can be used as two types of drainage basins and that can be suitably embedded and installed in a residential land of a narrow site.
[0002]
[Prior art]
As a conventional drainage dredger, for example, Japanese Patent Application Laid-Open No. 7-83377 discloses one in which one end of a 45 degree elbow joint is rotatably connected to an outer surface of an end portion on the branch inlet side of the dredger body.
[0003]
Specifically, as shown in FIGS. 4 and 5, upstream and downstream receiving ports 3a and 3a are provided on the main shaft a of the main body 1a, and the inspection tube receiving port 6a is provided on the ground surface side perpendicular to the main shaft a. In a small-bore PVC bowl having a branch pipe receptacle on the side of the main body 1a, the cut e is formed on the auxiliary shaft b inclined 45 degrees upstream of the main axis a of the main body 1a. A 45 ° elbow having a shunt pipe connection port 12a inclined at 45 ° with respect to the main shaft a, capable of forward and reverse rotation within a range of 180 ° to the shunt pipe connection port 12a, and having an elbow receiving port 14a as a shunt pipe receiving port. 13a is connected, and the direction of the elbow receiving port 14a can be configured to be parallel or orthogonal to the main axis a.
[0004]
[Problems to be solved by the invention]
However, in the above-mentioned conventional small-diameter rod, the notch 22a extends 180 degrees at the opening edge of the elbow-side tongue 18a of the 45-degree elbow 13a so that the 45-degree elbow 13a can perform forward and reverse rotation in the range of 80 degrees. On the other hand, a stopper projection 20a with which the stepped portion of the notch 22a abuts is provided on the side of the abutting portion 21a of the branch pipe connection port 12a. For this reason, as shown in FIG. 4, there is a gap S of 180 degrees between the side surface on the opening end side of the contact portion 21a of the branch pipe connection port 12a and the notch 22a of the 45 degree elbow 13a. Become.
[0005]
As a result, when embedding a small-diameter pit, there was a problem that earth and sand entered into the gap S, and a predetermined angle adjustment could not be performed, or a piping gradient could not be secured.
[0006]
An object of the present invention is to provide a drainage basin that can be easily embedded without being disturbed by the 45 ° elbow angle setting due to the entry of earth and sand.
[0007]
[Means for Solving the Problems]
The present invention according to claim 1 is characterized in that the branch pipe connection part of the main body having a main connection part with the drainage main pipe at both ends and a difference port which is a branch pipe connection part with the drainage branch pipe at the side part. of the end portion outer surface of Saguchi in catch basins in which socket inner surface of one end portion of the joint member is coupled it is fitted to the rotatable water-tight fashion around its axis, forward and reverse of the joint member A rotation restricting portion that restricts 180 degree rotation in the direction is provided on the outer surface of the opening edge of the opening of the branch pipe connecting portion and the inner surface of the inner portion of the receiving end of the one end portion of the joint member; By rotating the member about 180 degrees in the forward and reverse direction with respect to the branch pipe connecting portion of the rod main body, the direction of the other end of the joint member is parallel or orthogonal to the main axis of the rod main body, or the joint member The direction of the other end can be made 45 degrees or perpendicular to the main axis of the bag main body .
[0008]
According to a second aspect of the invention, the catch basin according to claim 1, wherein the joint member is 45 ° elbow joint, the rotation restricting portion is the opening edge outer surface of the difference port of the branch pipe connecting portion From the rib provided in one place on the circumference of the step provided over the entire circumference, and the protrusion provided over the entire inner circumference of the receiving port of one end of the elbow joint over the entire circumference The elbow joint is rotated about 180 degrees in the forward / reverse direction with respect to the difference port which is a branch pipe connection portion of the rod body, so that the direction of the other end portion of the elbow joint is relative to the main shaft of the rod body. It can be made parallel or orthogonal.
[0009]
(Operation) In the drainage basin according to the first or second aspect of the present invention, the rotation restricting portion for restricting the forward / reverse rotation of the joint member includes an opening edge outer surface of the outlet of the branch pipe connecting portion, Since it is provided on the inner surface of the inner part of the receiving port at one end of the joint member, that is, inside the connecting portion between the outer surface of the end of the branch pipe connecting portion and the inner surface of the one end of the joint member, When embedding dredging, earth and sand do not enter the rotation restricting section. Therefore, the rotation of the joint member is not hindered, and the angle setting and the piping gradient can be easily ensured.
[0010]
In the drainage basin of the present invention according to claim 2, the joint member is a 45 degree elbow joint, and the rotation restricting portion is provided on the outer surface of the opening edge of the opening of the branch pipe connecting portion over the entire circumference. Since it is composed of a rib provided at one location on the circumference of the stepped portion and a protrusion provided on the inner surface of the back of the receiving port at one end of the elbow joint over half of the entire circumference, this By rotating the elbow joint about 180 degrees in the forward / reverse direction with respect to the outlet that is the branch pipe connection part of the rod body, the orientation of the other end of the elbow joint is parallel or perpendicular to the main axis of the rod body it can. For this reason, a single drainage basin can be used as two types of drainage basins, which is suitable.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an example of an embodiment of the present invention will be described with reference to the drawings. 1 is a plan view showing an example of a drainage basin according to the present invention, FIG. 2 is an enlarged cross-sectional view of the main part of FIG. 1, and FIG. 3 is an enlarged perspective view of the main part of FIG.
[0012]
In FIG. 1, reference numeral 1 denotes a rigid main body made of hard vinyl chloride resin, and has receiving ports 21 and 21 to which drain main pipes 6 and 6 are connected at both ends of the main pipe portion 2. A branch pipe portion 3 having one end portion serving as an insertion port 31 is integrally projected from a side portion of one side of the rod main body 1. Reference numeral 4 denotes an elbow joint bent at 45 degrees, and both end portions thereof are receiving ports 41 and 42. The receiving port 41 of the elbow joint 4 is fitted with the outlet 31 of the branch pipe part 3 of the rod main body 1, thereby forming a drainage rod. In addition, 5 is an inspection receptacle to which a lower end portion of a rising pipe (not shown) is connected, a is an axis of the main pipe section 2, b is an axis of the branch pipe section 3, and 7 is a drainage branch pipe.
[0013]
On the outer peripheral surface of the outlet 31 of the branch pipe portion 3, annular grooves 32 and 33 having a U-shaped cross section are provided. A rubber ring 34 for sealing is attached to the annular groove 32. A step portion 35 is provided on the outer surface of the opening edge of the opening 31 over the entire circumference, and a narrow triangular rib 36 is provided at one place on the circumference of the step portion 35 as shown in FIG. It has been.
[0014]
On the other hand, on the inner peripheral surface of the receiving port 41 of the elbow joint 4, serrated locking pieces 43 are projected at three locations in the circumferential direction. The three locking pieces 43 are locked to the annular groove 33 of the outlet 31 of the branch pipe portion 3 and are present at a position facing the annular groove 33. Further, a protrusion 44 having a triangular cross-sectional shape is provided on the inner surface of the inner portion of the receiving port 41 of the elbow joint 4 over a half of the entire circumference, that is, over a range of 180 degrees.
[0015]
Then, as shown in FIG. 2, in a state where the receiving port 41 of the elbow joint 4 is forcibly fitted to the outlet 31 of the branch pipe portion 3 of the rod main body 1 and both are connected, the branch pipe portion 3 of the rod main body 1 is connected. On the other hand, by rotating the elbow joint 4 about 180 degrees in the forward and reverse directions, the orientation of the receiving port 42 of the elbow joint 4 can be made parallel or orthogonal to the main axis a of the rod body 1. .
[0016]
At that time, a protrusion 44 having a triangular cross section provided on one side of the triangular rib 36 provided on the step 35 at the opening edge of the opening 31 on the inner surface of the inner part of the receiving port 41 of the elbow joint 4 over a range of 180 degrees. When the end surfaces of the elbow joint 4 come into contact with each other and are locked, the forward and reverse rotation of the elbow joint 4 is restricted.
[0017]
And since both the triangular rib 36 which comprises the rotation control part, and the protrusion 44 with a triangular cross section are provided in the innermost part side of a connection part, a drainage basin is embedded. When installing, earth and sand do not penetrate into the back side of the connecting part. For this reason, the piping gradient of the drainage branch pipe 7 connected to the receiving port 42 of the elbow joint 4 can be easily set.
[0018]
In the above embodiment, the triangular rib constituting the rotation restricting portion is provided on the side of the outlet 31 of the branch pipe portion 3, and the protrusion is provided on the side of the receiving port 41 of the elbow joint 4, but on the contrary, You may make it provide a triangular rib in the receptacle 41 side of the elbow joint 4, and a protrusion in the outlet 31 side of the branch pipe part 3. FIG.
[0019]
Further, the elbow joint may be bent at 22.5 degrees instead of being bent at 45 degrees.
[0020]
In the above embodiment, an elbow joint bent 45 degrees is used as the joint member, but a normal socket joint may be used instead of the elbow joint. At that time, the open end surface of the branch pipe portion projecting from one side of the rod main body 1 is an inclined surface inclined at an angle of 22.5 degrees with respect to the axis of the branch pipe portion, while the corresponding socket joint The opening end surface of the socket may be an inclined surface inclined at an angle of 22.5 degrees with respect to the axis of the socket joint.
[0021]
By doing so, the socket joint is rotated about 180 degrees in the forward and reverse directions with respect to the branch pipe portion of the heel body, so that the direction of the inlet side of the socket joint is 45 degrees with respect to the main shaft of the heel body. Or it can be orthogonal. As a result, a single drainage basin can be used as a 45-degree or 90-degree merging type drainage basin.
[0022]
【The invention's effect】
In this invention of Claim 1 or 2, the rotation control part which controls rotation of the normal / reverse direction of a joint member is the opening edge outer surface of the opening of a branch pipe connection part, and the one end part of a joint member. Since it is provided on the inner surface of the inner part of the receiving port , that is, the rotation restricting part exists inside the connecting part between the branch pipe connecting part and the joint member, Since earth and sand do not enter the restricting portion, the angle and piping gradient can be set quickly and easily without hindering the rotation of the joint member.
[0023]
According to the second aspect of the present invention, the 45 degree elbow joint is rotated about 180 degrees in the forward and backward direction with respect to the difference of the branch pipe connection part of the rod main body, so that the difference of the branch pipe connection part is obtained. The end face of the ridge provided over 180 degrees on the inner surface of the receiving part of the elbow joint is in contact with and engaged with one side of the rib provided on the step of the opening edge of the other end of the elbow joint. Ki out to parallel or perpendicular to the part of the orientation Masumoto body of the main shaft, at one catch basins can be used also as two types of catch basins is suitable.
[Brief description of the drawings]
FIG. 1 is a plan view showing an example of a drainage basin of the present invention.
FIG. 2 is an enlarged cross-sectional view of a main part of FIG.
FIG. 3 is an enlarged perspective view of a main part of FIG. 2;
FIG. 4 is a plan view showing a conventional PVC small-diameter bowl.
FIG. 5 is an exploded enlarged cross-sectional view showing a main part of FIG. 4;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 桝 main body 2 Main pipe part 21 Receptacle 3 Branch pipe part 31 Insertion parts 32 and 33 Annular groove 34 Rubber ring 35 for a seal 35 Step part 36 Triangular rib 4 Elbow joint 41 and 42 Receptacle 43 Locking piece 44 Projection 5 Inspection Receiving port 6 Drainage main pipe 7 Drainage branch pipe a Axial center of main pipe b Axis of branch pipe

Claims (2)

Has a main connection portion between the drainage mains at both ends, the end portion outer surface of Saguchi of the branch pipe connecting portion Masumoto body having Saguchi a branch pipe connection of the drainage branch pipe side, In the drainage basin in which the inner surface of the receiving port at one end of the joint member is fitted and connected in a watertight manner so as to be rotatable around its axis,
The rotation restricting portion for restricting the 180 ° rotation of the joint member in the forward and reverse directions includes an outer surface of the opening edge of the opening of the branch pipe connecting portion, and an inner surface of the inner end of the receiving port of the one end portion of the joint member. The joint member is rotated about 180 degrees in the forward / reverse direction with respect to the branch pipe connecting portion of the rod main body, so that the direction of the other end of the joint member is parallel or orthogonal to the main axis of the rod main body. Alternatively, the drainage basin is configured so that the direction of the other end of the joint member can be 45 degrees or perpendicular to the main axis of the basin body . The joint member is a 45 degree elbow joint, and the rotation restricting portion is provided at one place on the circumference of a step portion provided over the entire outer periphery of the opening edge of the opening of the branch pipe connecting portion. And a rib provided on the inner surface of the inner end of the receiving port at one end of the elbow joint over a half of the entire circumference thereof, and the elbow joint serving as a branch pipe connecting portion of the rod body The drainage basin according to claim 1, wherein the direction of the other end of the elbow joint is made parallel or orthogonal to the main axis of the heel body by rotating about 180 degrees in the forward and reverse directions.

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