JP2001021080A - Pipe joint and catch basin - Google Patents

Abstract

PROBLEM TO BE SOLVED: To largely adjust a connecting direction and an angle of a connecting pipe and to surely keep a connecting condition by forming an eccentric core receiving port with an enlarged diameter upward and lower part nearly flush with an inner circumferential surface of a short pipe, on one end part of the short pipe, and protruding a lower part of the receiving port in the axial direction from an upper part. SOLUTION: A pipe joint 1 is composed of a short pipe 11 made of polyvinyl chloride or the like, a flexible joint 13 provided with a bellows part 13a and composed of an elastic body made of cylindrical rubber or the like, and a stainless steel band 14 for connecting and fixing the short pipe 11 and the flexible joint 13 to each other. In one end part of the short pipe 11, a lower part is nearly flush with an inner circumferential surface of the short pipe 11, an eccentric core receiving port 11a with an enlarged diameter gradually upward is formed, and a stopper step part 11b is formed on an inner side of the receiving port 11a. The inner diameter of the receiving port 11a is formed a little bit larger than an outer diameter of a connected pipe 3, and its lower part is protruded in the axial direction from an upper part. When an end part of the connected pipe 3 is inserted into the receiving port 11, the axis of the connected pipe 3 is connected in a condition of nearly horizontal or down slope.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pipe joint and, more particularly, to a pipe joint capable of connecting a connected pipe such as a drain pipe so as to be adjustable in angle and an upstream drain pipe being freely adjustable in angle at an inlet of a drainage basin. It relates to a drainage basin that can be connected.

[0002]

2. Description of the Related Art Conventionally, when a drainage pipe is buried in a development site or a residential site, a drainage basin 6 as shown in a sectional view of FIG. 3 has been used. This drainage basin 6 is a basin body 6 that is open at the top.
1 is provided with an invert 62 at the bottom thereof.
2 and an inlet 63 and an outlet 6 on the side wall of the main body 61.
4 are provided.

The inflow port 63 is provided with an enlarged diameter receiving port 631, and the inflow pipe 3 inserted into the enlarged diameter receiving port 631.
Are connected via a rubber ring 632. The outlet 64 is externally inserted with a diameter-increased receiving port 41 provided at an end of the outflow pipe 4, and is connected via a rubber ring 42. On the other hand, an upper diameter receiving port 65 is provided in the upper part of the basin main body 61, and the lower end of the cleaning port pipe 5 inserted into the receiving port 65 is connected via a rubber ring 651. Is closed by a lid 51 so as to be openable and closable.

[0004]

The inlet 63 of the conventional drainage basin 6 is provided with an enlarged-diameter receiving port 631 whose inner diameter increases toward the back side.
The connection angle of the inflow pipe 3 inserted in 1 can be adjusted appropriately. For this reason, when the contractor is immature, the inflow pipe 3 may be connected to the enlarged-diameter receiving port 631 with an ascending gradient as shown in FIG. As a result, the flow of sewage became poor, and contaminants such as earth and sand and filth sometimes clogged in the pipe.

Accordingly, an object of the present invention is to provide a pipe joint and a drainage basin in which the connection direction and angle of a connected pipe such as an inflow pipe can be largely adjusted, and the connected pipes are not connected at a reverse slope. And

[0006]

In order to achieve the above-mentioned object, a pipe joint according to the present invention is provided such that the diameter of a lower portion thereof is gradually increased upward at one end of the short tube while the lower portion is substantially flush with the inner peripheral surface of the short tube. While forming the eccentric socket, characterized in that one end of a flexible joint is connected to the eccentric socket, particularly, the eccentric socket,
It is characterized in that the lower part projects from the upper part in the axial direction.

In the drainage basin of the present invention, the diameter of the short pipe portion protruding from one side of the bottom of the main body of the drainage basin is gradually increased upward with the lower portion being substantially flush with the inner peripheral surface of the short pipe portion. The eccentric receptacle is formed and one end of a flexible joint is connected to the eccentric receptacle.

[0008]

FIG. 1 is a longitudinal sectional view showing one embodiment of a pipe joint according to the present invention. The pipe joint 1 includes a short pipe 11 made of a synthetic resin such as PVC, and a flexible joint 1 made of an elastic body such as a rubber or elastomer having a bellows portion 13a.
3 and a stainless steel band 14 for connecting and fixing the short pipe 11 and the flexible joint 13.
At one end of the short tube 11, an eccentric socket 11a whose lower portion is substantially flush with the inner peripheral surface of the short tube 11 and whose diameter gradually increases upward is formed. A stopper step 11b is formed on the back side of. In addition, the eccentric socket 11
The inner diameter of “a” is slightly larger than the outer diameter of the connected pipe (inflow pipe) 3, and the lower part thereof is formed to protrude more than the upper part in the axial direction. FIG. 1 illustrates the eccentric socket 11a in which the upper half has the same axial length and the lower half projects while being inclined, but the axial center is continuously inclined from the upper part to the lower part. The eccentric receptacle 11a may be a state protruding in the direction, that is, a state in which the cylinder is cut obliquely.

As described above, if the lower part of the eccentric socket 11a is formed so as to protrude in the axial direction from the upper part, when the end of the connected pipe 3 is inserted into the eccentric socket 11a, The end of the connection pipe 3 is supported at the lower part of the eccentric receptacle 11a, and the connection of the connection pipe 3 is performed in a state where the axis of the connection pipe 3 is substantially horizontal or has a downward slope. If the stopper step 11b is provided only in the upper half of the back of the eccentric socket 11a, and the lower half of the stopper is a smooth surface without the stopper step, impurities such as earth and sand and dirt from the pipe 3 to be connected. Can flow smoothly without stagnation, even if it flows in.

One end of the flexible joint 13 is externally inserted into the eccentric socket 11a, and is fixed by the band 14 wound around the outer periphery thereof. An expandable and contractible and bendable bellows portion 13a is provided at an intermediate portion of the flexible joint 13, and the eccentric socket 11 is formed by the bellows portion 13a.
The connection direction and the angle of the connected pipe 3 inserted and connected to a can be appropriately adjusted. A number of saw-tooth-shaped annular projections 13b are provided on the inner periphery of the other end of the flexible joint 13 so that the connected pipes 3 are connected in a watertight manner by a band 14a wound around the outer periphery. Has become.

FIG. 2 is a longitudinal sectional view showing one embodiment of the drainage basin of the present invention. This drainage basin 2 is provided with an invert 22 at the bottom of a basin main body 21 that is open at the upper side.
3 and an outlet 24 are provided.

The inflow port 23 is provided with a short pipe portion having the same shape as the short pipe 11 of the joint 1 shown in FIG. A flexible joint 13 having a bellows portion 13a is formed integrally with the side wall so as to protrude from the side wall.
Is fixed by the band 14 by extrapolating one end of the band.

The end of the inflow pipe 3 is watertight by a band 14a which is inserted through the flexible joint 13 and whose tip is inserted into the eccentric socket 11a and is wound around the outer periphery of the saw-like annular projection 13b. Connected and fixed. When the inflow pipe 3 is connected in this manner, the end of the inflow pipe 3 is in a state where only the movement to the reverse slope side is restricted by engagement with the inner periphery of the eccentric receptacle 11a. The direction and angle can be adjusted appropriately. That is, the inflow pipe 3 can be reliably connected in a state of a horizontal direction or a downward gradient, and the angle adjustment in the left-right direction can be freely performed. Further, the stopper step 11b
Is provided only in the upper half circumference of the eccentric receptacle 11a, so that the contaminants flowing from the inflow pipe 3 can flow smoothly.

Since one outlet 24 has the same port as the conventional one, the outlet 24 may be connected to the enlarged diameter receiving port of the outflow pipe in the same manner as the conventional one. In addition, the measure body 21
By providing an enlarged diameter receiving port 25 in the upper part of the above, a cleaning port pipe similar to the above can be connected.

The drainage basin 2 thus formed absorbs and absorbs these external forces at the bellows portion 13a of the flexible joint 13 even when vibrations and impacts act, or when the ground fluctuates due to an earthquake or the like. Therefore, the connection portion between the inflow port 23 and the inflow pipe 3 is not damaged, and the fluid in the pipe does not leak.

[0016]

As described above, according to the present invention,
At the time of piping construction, the connection direction and angle of the connected pipe can be appropriately adjusted within a predetermined range by a flexible joint. In particular, since the lower part of the eccentric receptacle is projected more in the axial direction than the upper part, the connection direction and angle of the connected pipe can be largely adjusted. In addition, since the end of the connected pipe is supported at the lower part of the protruding eccentric socket, the connected pipe can be connected with a downward slope, and the angle in the left and right direction can be freely adjusted. Even if the connection direction and angle of the pipe change greatly, the pipe end does not come off from the eccentric receptacle, and the connection state can be reliably maintained.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing one embodiment of a pipe joint of the present invention.

FIG. 2 is a longitudinal sectional view showing one embodiment of a drainage basin of the present invention.

FIG. 3 is a longitudinal sectional view showing an example of a conventional drainage basin.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Pipe fitting, 2 ... Drainage basin, 3 ... Connected pipe (inflow pipe), 1
DESCRIPTION OF SYMBOLS 1 ... Short pipe, 11a ... Eccentric socket, 11b ... Stopper step part, 13 ... Flexible joint, 13a ... Bellows part, 13b ... Annular protrusion, 14, 14a ... Band, 21 ... Masu main body, 22 ... Invert, 23 ... Inlet, 24 ... Outlet, 25 ... Expansion port

Claims (3)

[Claims] An eccentric socket whose lower part is substantially flush with the inner peripheral surface of the short pipe and whose diameter gradually increases upward is formed at one end of the short pipe. A pipe joint, wherein one end of a sex joint is connected. 2. The pipe joint according to claim 1, wherein the eccentric socket has a lower portion projecting in an axial direction than an upper portion. 3. An eccentric socket whose lower part is substantially flush with the inner peripheral surface of the short pipe part and whose diameter gradually increases upward is formed at the tip of the short pipe part protruding from one side of the bottom of the drainage basin body. A drainage basin, wherein one end of a flexible joint is connected to the eccentric socket.