JPH0220293Y2 - - Google Patents

Description

[Detailed description of the invention] A. Purpose of the invention A. Industrial application field This invention relates to a joint structure for preventing water leakage when joining a humid pipe to a rainwater basin, a manhole, etc.

B. Conventional technology and its problems Mortar is used when joining humid pipes to rainwater basins, manholes, etc. Therefore, due to the body pressure, the body of the hump tube cracks and water leaks from the joints.

B. Structure of the invention A. Means for solving the problem The present application attempts to solve the above-mentioned problem with the following structure. In other words, the proposed item is a standpipe 2 such as a rainwater catchment or manhole, and this standpipe 2.
It consists of Huyume tube 3 etc. which should be connected to
A receiving hole 4 for connection is provided at a connecting point in the side wall 2A of the standpipe 2, and the diameter 4A of this receiving hole 4 is longer than the diameter 3A of the hume pipe 3, and the top of this receiving hole 4 is An injection port 4B for the rubber raw material 5 is carved into the side wall 2A, and an outer rubber inlet 4B to be in contact with the outer surface 2A1 of the side wall 2A of the standpipe is provided at the connecting end 3B of the hume pipe 3. Plate 3C and inner surface 2A2 of side wall 2A
The inner rubber plate 3D to be brought into contact with the hume pipe is fitted in a state perpendicular to the longitudinal direction of the hume pipe, and the connecting end 3B of the hume pipe 3 is inserted into the receiving hole 4 of the standpipe 2, and This is a water leak prevention joint structure in which the rubber raw material 5 is injected and filled around the connection side end 3B from the injection port 4B.

(b) Examples of implementation of the idea 1 is the water leakage prevention joint structure of this proposal.

2 is a standpipe such as a rainwater basin or a man hole, and 3 is a hump pipe to be connected to this standpipe 2.

Therefore, a receiving hole 4 for connection is opened at the connecting point in the side wall 2A of this standpipe 2, and the diameter 4A of this receiving hole 4 is 3A the diameter of the hume pipe 3.
It has a longer structure, and at the top of this receiving hole 4, an injection port 4B for the rubber raw material 5 is carved in the side wall 2A.

This injection port 4B is inserted into the receiving hole 4 from the outer surface 2A1 and inner surface 2A2 of the side wall 2A of the standpipe 2.
It is configured as a cutout with a cross section that reaches the top. In the illustration, two injection ports 4B are provided, but either one may be used.

On the other hand, at the connecting end 3B of the hume pipe 3, there is an outer rubber plate 3C that should come into contact with the outer surface 2A1 of the side wall 2A of the standpipe, and an inner rubber plate 3C that should come into contact with the inner surface 2A2 of the side wall 2A. A rubber plate 3D is fitted into the hume tube in a state perpendicular to the longitudinal direction. The outer rubber plate 3C and the inner rubber plate 3D have a structure in which a circular hole is formed in the center of the front square plate-like bodies 3C1 and 3D1, into which the Huum tube is inserted. In this case, it is convenient for manufacturing if the left and right pieces are divided into two parts 3C11 and 3D11.

Therefore, the connection side end 3B of the hume pipe 3 is inserted into the receiving hole 4 of the standpipe 2, and the rubber raw material 5 is injected and filled around the connection side end 3B from the injection port 4B. .

By injecting and filling the rubber raw material 5, the surroundings of the connecting side end 3B, the outer rubber plate 3C, and the inner rubber plate 3 are
D will be connected as one body. This rubber raw material is preferably a hydroxyl-terminated liquid polybutadiene rubber (Toryo Kogyo FCC trademark).

In addition, when inserting this connecting side end 3B into the receiving hole, the outer rubber plate 3 is inserted into the connecting side end 3B.
C is attached, and after inserting it into the receiving hole, insert the inner rubber plate 3 so that it comes into contact with the inner surface 2A2 of the standpipe 2.
I will be wearing D.

Further, in order to accurately position the connecting end 3B in the receiving hole 4, it is preferable to install a packing 6 made of mortar with a flat U-shape in the front on the lower side of the receiving hole 4.

C action Explain along with the effects.

C. Effects of the invention (a) Since the joints are filled with rubber, they will not be damaged by body pressure.

(b) The concrete and rubber bond perfectly, and the joints are filled with rubber, making it possible to completely stop water.

C. Internal inverter costs are reduced.

D. Construction is easy.

E) Backfilling can be done at the same time as filling is completed, so no curing time is required.

[Brief explanation of the drawing]

Figure 1 is a side view, Figure 2 is a front view of the main parts, and Figure 3 is a side view.
The figure is a plan view of the main part, FIG. 4 is a partially cutaway side view before raw rubber is injected, and FIG. 5 is a partially cutaway side view after raw rubber is injected. 1...Water leakage prevention joint structure, 2...Stand pipe, 3...Hyum pipe, 3C...Outer rubber plate, 3
D... Inner rubber plate, 4... Receiving hole, 5... Rubber raw material.

Claims (1)

[Scope of claim for utility model registration] Stand pipes such as rainwater basins and manholes having the following configuration 2
and the hume pipe 3 to be connected to this standpipe 2.
A leak-preventing joint structure characterized by consisting of: A connection hole 4 is provided at the connection point in the side wall 2A of the standpipe 2, and the diameter of this hole 4 is 4.
A is configured to be longer than the diameter 3A of the hume pipe 3, and the rubber raw material 5 is placed at the top of this receiving hole 4.
An injection port 4B is carved into the side wall 2A. (b) At the connecting end 3B of the hume pipe 3, there is an outer rubber plate 3C that should come into contact with the outer surface 2A1 of the side wall 2A of the standpipe, and an inner surface 2A2 of the side wall 2A.
The inner rubber plate 3D to be in contact with the hume tube is fitted in a state perpendicular to the longitudinal direction of the hume tube. (c) The connection side end 3B of the hume pipe 3 is inserted into the receiving hole 4 of the standpipe 2, and the rubber raw material 5 is injected and filled around the connection side end 3B from the injection port 4B. .