JPS6122718Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a structure for attaching a diffuser pipe to a human waste septic tank for supplying air within the human waste septic tank.

Conventionally, when attaching an aeration pipe 2 to a tank body 1 of a human waste septic tank, the aeration pipe support part 2 is fixed to the tank body 1 with adhesive or bolts as shown in FIG. Although the horizontally elongated diffuser tube 3 was supported by force, there was a problem in that the diffuser tube support component 2 was required as a separate component, and furthermore, the work to fix the diffuser tube support component 2 was required. For this reason, it is conceivable to provide a stepped portion 4 in the tank body 1 as shown in FIG. 2 and have the aeration pipe 3 supported by this stepped portion 4, but this poses a problem that it tends to fall in the direction of the arrow in FIG. For this reason, as shown in FIG. 3, it is conceivable to drop a recess 5 into the tank body 1 and fit the horizontally elongated air diffuser 3 into it, but there is a gap between the side wall 6 of the recess 5 and the air diffuser 3. If this occurs, there is a problem that the air diffuser 3 moves in the direction of the arrow in Figure 2, and also, due to dimensional errors in the air diffuser 3 and the recess 5, it is difficult for the air diffuser 3 to come into tight contact with the side wall 6 of the recess 5. (Since the tank body 1 is made of FRP and is made of solid material, it has poor elasticity and cannot absorb dimensional errors.) Also, if it were to be press-fitted, it would fit too tightly and it would be difficult to remove it when removing the diffuser pipe. There is a problem that the work becomes difficult.

The present invention was devised in view of the above points, and its purpose is to eliminate the need for a separate air diffuser support part by providing a concave part in the tank body, and to eliminate the need for a separate air diffuser pipe support part, and to eliminate the need for air diffuser pipe support parts by providing line contact with the vertical ribs. By supporting the trachea, a large frictional force acts locally to ensure support, and when it is removed, the contact area is small, so
To provide a mounting structure for an aeration pipe of a human waste septic tank that can be easily removed.

The present invention will be explained in detail below. This invention is based on tank body 1.
An upwardly opening recess 5 for housing the horizontally elongated air diffuser 3 is integrally provided on the outer wall or partition of the recess 5 , and a vertical rib 7 is provided on the side wall 6 of the recess 5 . The vertical rib 7 is the recess 5
It may be provided only on one side wall 6, or it may be provided on opposing both side walls 6. The upper part of the vertical rib 7 has a tapered part 8, which serves as a guide. Here, the distance indicated by H in FIG. 5 or FIG.
It is designed to press against and support by line contact.
In the figure, 9 is an air chamber, and 10 is a precipitation separation chamber.

As mentioned above, the present invention has an integrally formed recess with an upper opening for housing the air diffuser in the tank body, a vertical rib protruding from the side wall of this recess, and the air diffuser placed in the recess is pressed against the vertical rib. Since the diffuser pipe is supported by contact, the vertical rib can fix the diffuser pipe by line contact, and the contact area between the vertical rib and the diffuser pipe is reduced.
For example, even if a cheese pipe or an elbow pipe installed at the joint of a diffuser pipe has a large diameter part, such a large pipe diameter part is inside a recess that does not form a vertical rib or forms a recess. This reduces restrictions on where the cheese pipe or elbow pipe can be installed, and even if the pipe has poor straightness, the vertical ribs contact the diffuser pipe in a linear manner, so the distance between the vertical ribs is reduced. By using the deflection of the diffuser pipe, even if the diffuser pipe is slightly bent, there is a considerable amount of installation clearance.Furthermore, the vertical ribs protrude into the recesses, making it possible to install the pipe easily with just the vertical ribs. Although the fixing force of the diffuser pipe or the strength of the vertical ribs is weakened, the strength of the side wall on which the vertical ribs are integrally protruded can compensate for the strength of the vertical ribs. Even when removing a diffuser pipe that is stuck in place, the contact area of the vertical ribs is small, so it can be taken out relatively easily.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a conventional example, FIG. 2 is a sectional view of another conventional example, FIG. 3 is a sectional view of yet another conventional example, FIG. 4 is a sectional view showing the whole of the present invention, and FIG. The figure is a cross-sectional view of the aeration pipe installed in the same as above, Figure 6 is a perspective view of the recess in the same as above, Figure 7 is a cross-sectional view of another embodiment of the present invention, and Figure 8 is a recess in the partition of the tank body. It is an overall sectional view of the provided example, and 1 is a tank body, 3 is an aeration tube, 5 is a recessed part, 6 is a side wall, and 7 is a vertical rib.

Claims (1)

[Scope of utility model registration request] A recess with an upward opening for storing a horizontally elongated air diffuser pipe is integrally provided in the tank body, a vertical rib is provided protruding from the side wall of this recess, and the air diffuser pipe placed in the recess is pressed against the vertical rib to make line contact with the air diffuser pipe. A mounting structure for a diffuser pipe in a human waste septic tank supported by