JPS6022149Y2 - drainage trap - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of a drain trap, and an object of the present invention is to facilitate the installation of an elbow that communicates with a horizontal draw pipe and a vertical draw pipe inserted between the drain trap.

In high-rise housing complexes, a main pipe 9 for drainage is buried in advance inside the building frame, and a horizontal draw pipe 6 communicating with the main pipe is provided in advance at a predetermined position.

Therefore, after installing the sink A etc., a vertical pipe must be inserted between the drain trap and the horizontal pipe.

For this reason, after fixing the vertical pipe 4 to the drain trap, it is necessary to connect the horizontal pipe 6 and the vertical pipe 4 with the elbow 7, but since both pipes are fixed, It is necessary to forcibly deform the pipe and insert the elbow, making piping work extremely difficult.

Furthermore, in order to eliminate this drawback, the following configuration may be considered.

In other words, since conventional drainage traps are only provided with an overflow pipe that penetrates the center of the bottom of the cylindrical body, it is conceivable to provide an adapter 8 in order to connect the vertical pipes. (See Figure 5).

In this case, in order to facilitate the piping work of the vertical pipe, it is necessary to increase the size of the vertical pipe that enters the inside of the adapter 8, which increases the size of the adapter 8 and causes an increase in cost.

The present invention solves the above drawbacks by making the lower part of the overflow pipe larger in diameter, making it easier to pipe the vertical pipe without changing the size of the drain trap. This will be explained in detail by

FIG. 1 is a longitudinal sectional view showing the drainage trap of the present invention.
A stepped overflow tube 2 with a larger diameter at the bottom is provided by penetrating the center of the bottom of the cylindrical trap outer box body 1, and the overflow tube 2
A deodorizing cap 3 is provided to cover the area.

The relationship between the overflow cylinder 2 and the cap 3 is such that the lower end of the cap 3 is isolated from the atmosphere by a water seal that is always maintained within the trap outer box.

2 and 3 are diagrams showing a state in which a vertical pipe is inserted between a drain trap and a horizontal pipe. First, the upper end of the vertical pipe 4 is 5 and its lower end is directly opposed to the open end of the elbow 7 which is watertightly fitted to the end of the horizontal draw tube 6, and then the vertical draw tube 4 is lowered, as shown in FIG. Thus, the lower part of the overflow pipe 2 and the elbow 7 can be communicated with each other through the vertical pipe 4.

Therefore, there is no need to forcibly deform the parts and connect them by fitting them together.

As described above, in the present invention, only the lower part of the overflow pipe of the drain trap is made long enough and has a large diameter to fit the upper end of the vertical pipe, so the drain trap as a whole can be small, and the vertical pipe can be There is no need to use flexible pipes or retrofit a drain trap to the aquarium; instead, the drain trap and vertical pipe,
It has unique practical effects such as making piping work with the building frame extremely easy.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view of the drainage trap of the present invention, and FIGS. 2 and 3 are views showing the state in which piping is installed. FIG. 4 is a simplified side view showing the piping of the sink, and FIG. 5 is a longitudinal sectional view showing a conventional drainage trap. 1... Trap outer box body, 2... Overflow tube, 3. Bent/odor-proof cap, 4... Vertical draw pipe, 5
...Lower large diameter section, 6...Horizontal drawing pipe, 7
······elbow.

Claims (1)

[Scope of utility model registration request] In a drainage trap in which an overflow tube is provided by penetrating the center part of the bottom surface of the trap outer box body, and an odor-proof cap is provided to cover the overflow tube, the lower part of the overflow tube has a stepped shape with a large diameter, and the lower large diameter portion is a drainage trap characterized by having a length and diameter that allow insertion of the upper end of a vertical pipe that communicates with a horizontal pipe.