JPH11107355A - Drainage basin and pipe joint therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an inexpensive drainage basin and a pipe joint for the drainage basin. SOLUTION: The first member 1 has a through hole 11 and an attaching part 12, which is provided on the one axial end side of the through hole 11 and has a recessed groove 122 on a tip face 121. The second member 2 has a cylindrical part 21 and a flange part 22. The cylindrical part 21 has an outer diameter D2 smaller than the bore of the through hole 11 of the first member 1. The flange part 22 is provided in the one axial end of the cylindrical part 21, and has a protruding part 223 on a back face opposite to a tip face 221. The first member 1 and the second member 2 are joined together so that the cylindrical part 21 of the second member 2 may pass through the through hole 11 of the first member 1 and the protruding part 223 of the second member 2 may fit in a recessed groove 122 provided in the first member 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a pipe joint for a drainage basin and a drainage basin. In the present invention, the drainage basin includes a manhole and also includes other types of drainage basins other than the manhole.

[0002]

2. Description of the Related Art For example, Japanese Unexamined Patent Publication No. 9-209440 discloses a first member having a collar portion at an intermediate portion and a cylindrical portion on both sides of the collar portion, and a second member attached to the first member.
The pipe joint which has a member of the above is disclosed. In order to attach such a pipe joint to a drainage basin such as a manhole, a mounting hole is provided in advance on the outer wall of the drainage basin, and a front half of the first member is inserted into the mounting hole, and The collar provided at the intermediate portion of the first member is attached and fixed to the outer wall of the drainage basin, and a flexible second cylindrical member is attached to the rear half of the first member.

In connecting the drainage pipe to the pipe joint, the drainage pipe is inserted through the second member and the first member, and the drainage pipe is tightened from around the second member by a band or other fastener. Fix it.

[0004] The problem with the above-mentioned pipe joint structure is that the first member having the collar portion at the intermediate portion and having the cylindrical portions on both sides of the collar portion is used. cost,
In particular, the mold cost is expensive.

[0005] In addition, the first part of the first member is inserted into the mounting hole of the drainage basin body, and an external pipe is inserted therein. For this reason, it is necessary to prepare various types of first members having an outer diameter and an inner diameter corresponding to the size of the mounting hole provided in the main body and the size of the outer diameter of the pipe. This means that the molding cost for the first member is further increased.

[0006]

An object of the present invention is to provide a pipe joint for a drainage basin and a drainage basin which are inexpensive.

[0007]

Means for Solving the Problems In order to solve the above-mentioned problems, a pipe joint for a drainage basin according to the present invention comprises a first member,
A second member. The first member has a through hole and a mounting part. The mounting portion is provided on one end side of the through hole in the axial direction, and has a concave groove on a distal end surface.

[0008] The second member has a cylindrical portion and a flange portion. The cylindrical portion has an outer diameter smaller than the diameter of the through hole of the first member. The collar is provided at one end in the axial direction of the cylindrical portion, and has a protruding portion on the back surface opposite to the distal end surface.

In the first member and the second member, the cylindrical portion of the second member may pass through the through hole of the first member, and the first member and the second member may be provided in the first member. In the groove,
The protrusions of the second member are combined so as to fit.

A drainage basin according to the present invention is constructed by attaching the above-described pipe joint to a basin body. In attaching to the box body, the attachment portion of the first member is attached to an outer surface of the box body. In the second member, the collar portion is pressed between a distal end surface of the attachment portion of the first member and an outer surface of the cell body.

In the pipe joint according to the present invention, the first member has a through hole, the second member has a cylindrical portion, and the cylindrical portion has an outer diameter of the through hole of the first member. Because it has a smaller diameter,
In attaching the pipe joint to the box body, the second member can be passed through the through hole of the first member.
In addition, since the second member can be swung within the range of the hole diameter difference, the position of the pipe attached to the second member can be adjusted.

The first member and the second member are combined so that the protruding portion of the second member fits into a groove provided in the first member. Therefore, in a state in which the attachment portion of the first member is attached to the outer surface of the box body, the second member is in a state in which the protruding portion has entered the concave groove of the second member. Can be securely attached to the basin body. For this reason, only by attaching and fixing the first member to the box body, the second member can also be attached to the box body.

The external pipe is attached by inserting it into the through hole of the second member fixed as described above. The external pipe is formed by tightening the cylindrical portion of the second member with a fastener such as a band.
Is fixed to the cylindrical portion of the member.

As apparent from the above description, the pipe joint according to the present invention uses the first member as a fixing member for fixing the main body to the box body, and uses the second member for connecting the external pipe. It is used as a member, and the first member and the second member have two different roles.

Therefore, it is possible to cope with a change in the size of the mounting hole of the box body only by changing the dimensions of the first member. The second member, regardless of the size of the mounting hole,
The same size can be used.

The variation in the hole diameter of the external piping can be dealt with by changing the hole diameter of the through hole of the second member. At this time, there is no need to change the diameter of the through hole of the first member.

As a result, the first member and the second member to be prepared are prepared.
Can be significantly reduced. For this reason, the number of dies for manufacturing the first member and the second member can be reduced, and the cost required for manufacturing the dies can be significantly reduced.

More specific features and advantages of the present invention will be described more specifically with reference to the drawings.

[0019]

1 is a perspective view of a first member constituting a pipe joint for a drainage basin according to the present invention, and FIG. 2 is a perspective view of a second member constituting a pipe joint for a drainage basin according to the present invention. FIG. 3 is a perspective view, and FIG. 3 is an enlarged sectional view of a pipe joint obtained by assembling the first member and the second member shown in FIGS. 1 and 2. As shown in the drawing, the pipe fitting for a drainage basin according to the present invention comprises: a first member 1;
And a second member 2. The first member 1 has a through hole 11
And a mounting portion 12. The mounting portion 12 is provided on one end side of the through hole 11 in the axial direction, and has a concave groove 122 on a distal end surface 121. The concave groove 122 has a ring shape. The first member 1 is made of a material such as plastic or metal in consideration of strength. In addition, for example, when attached to a drainage basin whose outer peripheral surface is on an arc, such as a manhole, the distal end surface 121 has an arc shape that fits the arc-shaped outer peripheral surface of the cell body. The mounting portion 12 has a mounting hole 1.
23 are provided.

The second member 2 includes a cylindrical portion 21 and a flange portion 2.
And 2. The cylindrical portion 21 has an outer diameter D2 of the first member 1.
Is smaller than the hole diameter D1 of the through hole 11 of FIG. Collar part 22
Is provided at one end of the cylindrical portion 21 in the axial direction, and the distal end surface 2
A projection 223 is provided on the back surface 222 opposite to the side 21.
The protrusion 223 has a ring shape. The second member 2 needs to have flexibility. Specifically, it can be made of rubber or the like. On the distal end side of the cylindrical portion 21, there are provided a concave ring portion 211 for attaching a fastener such as a band, and convex ring portions 212 and 213.

The first member 1 and the second member 2 are provided on the first member 1 through the cylindrical portion 21 of the second member 2 passing through the through hole 11 of the first member 1. In the concave groove 122, the second
Are assembled so that the protruding portion 223 of the member 2 is fitted.

FIG. 4 is a partially broken sectional view of the drainage tub fitted with the pipe joint shown in FIGS. 1 and 3, and FIG. 5 is an enlarged sectional view of the pipe joint part of the drainage tub shown in FIG. . The drainage basin shown is a manhole. The drainage basin according to the present invention is configured by attaching the above-described pipe joint to the basin body 3. When attaching to the basin body 3, the first member 1
Is attached to the outer surface 32 of the box body 3. The attachment section 12 is attached to the box body 3 by an attachment 6 such as a bolt. The second member 2 is configured such that the collar portion 22 has the distal end surface 121 of the mounting portion 12 of the first member 1.
And the outer surface of the box body 3.

It is desirable to provide three to four attachments 6. The illustrated fixture 6 is attached to the outer wall 32 of the box body 3.
A bolt 61 and a nut 62 attached to the nut. By tightening the nut 62 to the bolt 61,
The first member 1 can be fixed to the outer wall surface 32 of the box body 3.

In the pipe joint according to the present invention, the cylindrical portion 21 of the second member 2 has an outer diameter D2 of the through-hole 11 of the first member 1.
Since the diameter is smaller than the hole diameter D1, the second member 2 can be passed through the through hole 11 of the first member 1 when the pipe joint is attached to the box body 3. In addition, the second member 2 can be swung within the range of the hole diameter difference (D1-D2), so that the position of the pipe 4 can be adjusted.

The first member 1 and the second member 2 are combined so that the protruding portion 223 of the second member 2 fits into the concave groove 122 provided in the first member 1. Therefore, in a state where the attachment portion 12 of the first member 1 is attached to the outer surface of the box body 3, the second member 2 is in a state where the protruding portion 223 enters the concave groove 122 of the second member 2. By means of the first member 1, it is securely attached to the box body 3. For this reason, the second member 2 can also be attached to the box body 3 simply by attaching and fixing the first member 1 to the box body 3.

The external pipe 4 is attached by being inserted into the through hole 23 of the second member 2 fixed as described above. The external pipe 4 is fixed to the second member 2 by tightening the tubular portion 21 of the second member 2 with a fastener 5 such as a band.

As is clear from the above description, the pipe joint according to the present invention uses the first member 1 as a fixing member for fixing to the box body 3 and connects the second member 2 to the external pipe 4. The first member 1 and the second member 2 have two different roles.

Therefore, when the mounting hole 31 of the box body 3 becomes large or small, it is possible to cope with such a change only by changing the first member 1. Regarding the second member 2, one having the same size can be used regardless of the change in the size of the mounting hole 31.

On the other hand, the change in the hole diameter of the external pipe 4 can be dealt with by changing the hole diameter of the through hole 23 provided in the cylindrical portion 21 of the second member 2. At this time, it is not necessary to change the hole diameter D1 of the through hole 11 of the first member 1.

As a result, the number of types of the first member 1 and the second member 2 to be prepared can be reduced. For this reason, the number of molds for manufacturing the first member 1 and the second member 2 can be reduced, and the cost required for manufacturing the molds can be significantly reduced.

[0031]

As described above, according to the present invention, it is possible to provide a pipe joint for a drainage basin and a drainage basin which are inexpensive.

[Brief description of the drawings]

FIG. 1 is a perspective view of a first member of a pipe joint for a drainage basin according to the present invention.

FIG. 2 is a perspective view of a second member of the drainage pipe joint according to the present invention.

FIG. 3 is an enlarged sectional view of the pipe joint obtained by assembling the first member and the second member shown in FIGS. 1 and 2;

4 is a partially broken sectional view of a drainage basin to which the pipe joint shown in FIG. 3 is attached.

FIG. 5 is an enlarged sectional view of a pipe joint portion of the drainage basin shown in FIG. 4;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 1st member 2 2nd member 11 Through-hole 12 Attachment part 122 Concave groove 21 Cylindrical part 22 Collar part 223 Projection part

Claims (2)

[Claims] 1. A pipe joint used for a drainage basin, comprising a first member and a second member, wherein the first member has a through hole and a mounting portion. The mounting portion is provided on one end side of the through hole in the axial direction, has a concave groove on a tip end surface, and the second member has a cylindrical portion and a flange portion. The cylindrical portion has an outer diameter smaller than the diameter of the through hole of the first member, and the collar portion is provided at one end of the cylindrical portion in the axial direction, and has a tip surface and Has a protruding portion on the opposite back surface, wherein the first member and the second member are such that the second cylindrical portion penetrates through the through hole of the first member, and 1
A pipe fitting for a drainage basin, which is combined so that the projecting portion of the second member fits into the concave groove provided in the member. 2. A drainage basin including a pipe joint and a tub body, wherein the pipe joint is as described in claim 1, wherein the attachment portion of the first member is provided in the pit body. The second member is a drainage basin in which the collar portion is pressed between the distal end surface of the mounting portion provided on the first member and the outer surface of the tub body. .