JP2000081188A - Branch pipe joint - Google Patents

Abstract

PROBLEM TO BE SOLVED: To regulate the connecting direction or angle of a pipe to be connected such as inflow pipe by connecting one end of a rubber joint to a cylindrical body, and covering the circumferential side of the rubber joint with a cylindrical hood. SOLUTION: One end of a rubber joint 6 is inserted onto a cylindrical body 54, and fastened and fixed by a band 7, and the end part of a pipe to be connected 3 inserted to a faucet 541 is connected by fastening the band 7. The rubber joint 6 has a bellows part 6a to regulate the connecting direction or angle of the pipe to be connected 3. A cylindrical hood 55 integrally connected to the cylindrical body 54 is provided on the base part of the cylindrical body 54 to cover the circumferential side of the rubber joint 6, so that the breakage by direct action of an external force such as earth pressure or wheel load is prevented. Accordingly, the connecting direction or angle of the pipe to be connected 3 can be properly regulated by the rubber joint 6 in piping construction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a branch pipe joint suitably used for connecting a pipe such as a drain pipe to a basin body such as a drain basin.

[0002]

2. Description of the Related Art Japanese Utility Model Laid-Open Publication No. Hei 6-43485 discloses a drainage basin which can be used for connecting a drainage pipe to a slope or a stepped land. This drainage basin has a raised bottom 1a having a concavely curved surface on the lower end side of the riser 1 as shown in a partially cut sectional view in FIG. The outflow pipe 2 is welded, and the inflow pipe 3 is connected to an intermediate portion of the riser pipe 1 via a branch pipe joint 4.

The branch pipe joint 4 has a through hole substantially at the center of a saddle 41 connected to the outer wall surface of the riser pipe 1, and a cylindrical body 42 surrounding the through hole and protruding toward the outer surface of the saddle 41. Is connected to a joint 44 having a receiving port 43. The end of the inflow pipe 3 inserted into the receiving port 43 is connected via a rubber ring 4b.

[0004]

However, in the case of the branch pipe joint 4 described above, the connection direction and the angle of the inflow pipe 3 are allowed by the expansion of the back side of the receiving port 43, so that the connection of the inflow pipe 3 is not possible. There is a problem that the adjustment of the direction and the angle is restricted, and large adjustment cannot be performed.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and the connection direction and angle of a connected pipe such as an inflow pipe can be largely adjusted, and earth pressure or wheel load acts on a joint buried underground. The present invention is to provide a branch pipe joint that does not cause a leakage accident of fluid in a pipe at the joint portion even if ground deformation occurs due to an earthquake or an earthquake.

[0006]

The branch pipe joint according to the present invention comprises:
It is connected to the outer wall surface of the cylindrical cell body, and a through hole is provided substantially at the center of the saddle connected to the outer wall surface of the cell body, and protrudes to the outer surface side surrounding the through hole. A cylindrical body is provided, one end of a rubber joint is connected to the cylindrical body, and an outer peripheral side of the rubber joint is covered with a cylindrical hood.

Further, the branch pipe joint according to the present invention is characterized in that one end of a rubber joint is externally inserted into a cylindrical body, fastened and fixed with a band, and a cylindrical hood integrally joined to a base of the cylindrical body. The outer peripheral side of the joint is covered, and further, a receiving port into which the end of the connected pipe is inserted is provided in the cylindrical body, and the distal end of the cylindrical body projects downward from above.

[0008]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a perspective view showing an unfolded state of a branch pipe joint according to the present invention, and FIG. 2 is a cross-sectional view showing a connected state of the branch pipe joint.

The branch pipe joint A comprises a joint body 5 made of a synthetic resin such as PVC, a cylindrical rubber joint 6 having a bellows portion 6a, and a stainless steel band 7. The saddle 51 constituting the joint body 5 is curved with a curvature substantially equal to the outer wall surface of the box body (rise tube) 1, and a through hole 52 is provided substantially in the center of the saddle 51.
A projection 53 is provided to surround the through hole 52 and protrude to the rear surface of the saddle 51. The projection 53 is used for positioning when connecting the branch pipe joint A to the outer wall surface of the box body 1, and is inserted into the connection hole 11 provided in the side wall of the box body 1.

On the other hand, a cylindrical body 54 is provided protruding from the outer surface of the saddle 51. A receiving port 541 having an inner diameter slightly larger than the outer diameter of the connected pipe 3 is provided at an end of the cylindrical body 54, and the end of the connected pipe 3 can be inserted into the receiving port 541. I have. Further, one end of a rubber joint 6 is externally inserted into the cylindrical body 54 and fixed by a band 7. Similarly, a band 7 is attached to the other end of the rubber joint 6.
Is wound, and the end of the connected pipe 3 inserted into the receiving port 541 is connected by tightening the band 7. The rubber joint 6 is provided with a bellows portion 6a, and the connection direction and angle of the connected pipe 3 can be adjusted by the bellows portion 6a.

As shown by the broken line in FIG. 2, the distal end of the cylindrical body 54 forming the receiving port 541 is provided so that the lower part protrudes from the upper part. For this reason, although the connection angle of the connected pipe 3 connected to the receiving port 541 can be adjusted largely in the left-right direction and upward, the angle adjustment for the downward direction is restricted, so that the connected pipe 3 is connected with a downward slope. Is prevented. In addition, since the end of the connected pipe 3 is supported by the lower portion of the protruding receiving port, the pipe end does not separate from the receiving port 541 even when the connection direction and the angle of the connected pipe 3 are largely changed. In addition, since the bellows portion 6a of the rubber joint 6 is protected at the lower portion of the protruding receiving port, external force such as earth pressure or wheel load acting on the connected pipe 3 directly acts on the bellows portion 6a and may be damaged. Absent.

A stopper step 542 is provided only in the upper half of the inner side of the receiving port 541, and the lower half thereof is a smooth surface without the stopper step. For this reason,
Contaminants such as dirt and earth and sand do not stay,
Flows smoothly into the main body of the basin.

At the base of the cylindrical body 54, there is provided a cylindrical hood 55 integrally joined therewith. The cylindrical hood 55 covers the outer peripheral side of the rubber joint 6. The cylindrical hood 55 is for preventing breakage due to an external force such as earth pressure or wheel load directly acting on the rubber joint 6. The inner side and the opening side of the cylindrical hood 55 are described above. An opening 551 through which a tool such as a screwdriver can be inserted when tightening the band 7 is provided.

The branch pipe joint of the present invention has the above-described structure, and a connection hole 11 is formed at an appropriate position on the side wall of the box body 1 at the time of piping on site. Then, an adhesive is applied to the back surface side of the saddle 51 of the branch pipe joint A, and the projection 53 is inserted into the connection hole 11 for connection. At this time, the saddle 51 may be fixed to the side wall of the box body 1 using a wire, a band, or the like.

Next, the end of the connected pipe 3 is inserted into the receiving port 541 of the cylindrical body 54, a tool such as a screwdriver is inserted into the opening 541 of the cylindrical hood 55, and the band 7 is tightened. And the rubber joint 6. During this connection operation,
The connection direction and angle of the connected pipe 3 can be appropriately adjusted by the bellows portion 6a of the rubber joint 6.

After the pipe is installed, even if an external force such as earth pressure or wheel load acts on the connection portion, the rubber joint 6 is covered with the cylindrical hood 55 and protected, so that it is not damaged. Even if vibrations, shocks, etc. act on the joint, or ground fluctuations occur due to an earthquake or the like, these external forces are applied to the bellows 6 of the rubber joint 6.
Since the absorption is attenuated by a, the joint portion is not broken and the fluid in the pipe does not leak.

[0017]

As described in detail above, the branch pipe joint according to the present invention has a through hole substantially at the center of the saddle connected to the outer wall surface of the box body, and surrounds the through hole to form an outer surface. A protruding cylindrical body is provided, and the end of the connected pipe is connected to a rubber joint connected to the cylindrical body. Therefore, at the time of piping construction, the connection direction and angle of the connected pipe are connected by the rubber joint. Can be adjusted appropriately.

Further, since the lower end of the cylindrical body protrudes downward from the upper side, the connecting direction and angle of the connected pipe can be largely adjusted, and the end of the connected pipe is formed at the projecting lower portion of the receiving port. Because it is supported, even if the connection direction and the angle of the connected pipe greatly change, the pipe end does not come off from the receiving port, and the connection state is reliably maintained.

Further, since the outer peripheral side of the rubber joint is covered with the cylindrical hood, no external force such as earth pressure or wheel load acts directly on the rubber joint, so that the rubber joint is not damaged. In addition, even if earth pressure or wheel load acts on this joint after piping construction, or if ground deformation occurs due to an earthquake or the like, these vibrations, shocks, loads, etc. are absorbed and alleviated by the rubber joint. Leakage accident of the fluid in the pipe due to breakage of the joint portion can be prevented beforehand.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a deployed state of a branch pipe joint according to the present invention.

FIG. 2 is a sectional view showing a connection state of a branch pipe joint.

FIG. 3 is a partially sectional view showing a conventional drainage basin.

[Explanation of symbols]

 A Branch pipe joint 1 Masu main body (rise pipe) 2 Outflow pipe 3 Inflow pipe 5 Joint body 6 Rubber joint 7 Band

Claims (3)

[Claims] 1. A branch pipe joint connected to the outer wall surface of a cylindrical box body, wherein a through hole is provided substantially at the center of a saddle connected to the outer wall surface of the box body, and the through hole surrounds the through hole. A cylindrical body protruding outwardly is provided, one end of a rubber joint is connected to the cylindrical body, and the outer peripheral side of the rubber joint is covered with a cylindrical hood. Branch pipe fitting. 2. An end portion of a rubber joint is externally inserted into a cylindrical body and fastened and fixed with a band, and an outer peripheral side of the rubber joint is covered with a cylindrical hood integrally joined to a base of the cylindrical body. The branch pipe joint according to claim 1, wherein 3. The cylinder according to claim 1, wherein a receiving port into which the end of the connected pipe is inserted is provided in the cylindrical body, and a tip of the cylindrical body projects downward from above. The described branch pipe joint.