JP2507189Y2 - Sewage unit tank for pressure sewer - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a sewage unit tank for pressure sewers.

[0002]

2. Description of the Related Art A conventional sewage unit tank for a pressure type sewer will be described with reference to FIGS. FIG. 4 is a cross-sectional view of the dirty water unit tank, and FIG. 5 is a cross-sectional view showing the bottom wall portion before mounting the pump.

Conventional pressure-type sewer sewage unit tank 10
Reference numeral 1 denotes a sewage tank body 102 for storing sewage, an inflow port 103 for inflowing sewage into the sewage tank body, an outflow port 104 for outflowing sewage to the outside of the sewage body, and sewage in the sewage tank body under pressure. For example, it is composed of a grinder pump 105, and one sewage unit tank is installed in each house or a plurality of houses, and sewage discharged from a home is introduced from an inflow port 103, and inside the sewage tank main body 102. Temporarily store in. When the sewage is stored at the upper limit water level 107 or higher, the pump 1 installed in the sewage tank main body 102.
At 05, sewage is discharged from the outflow port 104, and when the sewage falls below the lower limit water level 108, the pump 105 is stopped.

Compared with the conventional free-flowing type sewer, such a pressure type sewer can use a pipe having a small diameter, and it is not necessary to consider the pipe gradient at the time of piping, so that the construction cost is reduced.
Recently, it is a sewer system that has been widely adopted in rural villages.

If the pump used in the sewage unit tank of this pressure type sewer is simply placed on the bottom wall of the sewage tank body, it will move on the bottom wall due to vibration of the pump during operation of the pump, and the pump 105 and the outflow pipe will be connected. This is inconvenient because the parts come off and the pump 105 breaks down.

Therefore, normally, as shown in FIG. 5, the pump 105 is fixed to the bolt 110 provided on the bottom wall 106 of the dirty water unit tank 101. However, when the pump 105 is fixed to the bottom wall 106 of the dirty water unit tank 101 in this manner, the bottom wall 10 is vibrated during operation of the pump 105.
Since there is a possibility that 6 may be damaged, the reinforcing plate 109 is attached on the bottom wall 106.

[0007]

As described above, the sewage main body tank has conventionally been expensive because the reinforcing plate is attached to the bottom wall.

[0008] Usually, in the sewage unit tank, when the sewage reaches the upper limit water level or above, the upper limit switch for detecting the sewage water level is activated to operate the pump, and the sewage is pumped to the sewer pipe through the outlet, As a result, when the water level of the sewage drops and falls below the lower water level, the lower limit switch that senses the water level operates and the pump stops.

Therefore, sewage below the lower limit water level is always accumulated inside the sewage tank body. As described above, since the waste water is constantly accumulated in the main body of the waste water tank, when the pump fails, it is necessary to perform a troublesome process of discharging the accumulated waste water and then performing repair work.

Therefore, the purpose of the present invention is to eliminate the need to reinforce the bottom wall of the main body of the waste water tank as in the conventional case, and to discharge the waste water in the main body of the waste water tank when the pump fails. It is to provide a sewage unit tank that can be repaired.

[0011]

Means for Solving the Problems The present invention solves the above problems and achieves the above objects, and includes a main body for storing waste water, an inlet for introducing the waste water into the main body for waste water,
In a sewage unit tank of a pressure type sewer consisting of an outlet for discharging sewage to the outside of the sewage tank body and a pump for pumping sewage in the sewage tank body, at the corner of the boundary between the bottom wall and side wall of the sewage tank body. A supported pump fixing base is placed, and the pump is mounted on the pump fixing base.

The waste water tank body in the present invention is made of FRP,
There are various types such as concrete and iron, but FRP is preferable because it does not crack or rust and is light. Further, the pump fixing base in the present invention is similar to the main body of the waste water tank, and the FR
There are various types such as P, concrete, and iron, but FRP is preferable because it does not cause cracks or rust and is light.

In the present invention, there are various means for providing the pump fixing base supported at the corner portion of the boundary between the bottom wall and the side wall. However, if the pump fixing base is flat, it covers the entire bottom wall. Then, the peripheral portion of the pump fixing base may be supported at the corner of the boundary between the bottom wall and the side wall.

Further, if the pump fixing base is provided with a plurality of legs at the edge of the plate, the plurality of legs are supported at the corner portion between the bottom wall and the side wall to support the pump fixing base. You should put it.

[0015]

In the present invention, the pump is not fixedly attached to the bottom wall of the main body of the waste water tank, but is attached to the pump fixing base that is supported by the corner portion of the boundary between the bottom wall and the side wall. Therefore, the vibration due to the operation of the pump is indirectly transmitted to the bottom wall of the main body of the waste water tank through the pump fixing base. Therefore, the vibration transmitted to the bottom wall is not so strong that it is not necessary to make the bottom wall of the main body of the waste water tank as strong as the conventional one.

Since the pump fixing base according to the present invention is supported and placed at the corner portion of the boundary between the bottom wall and the side wall of the main body of the waste water tank, the side wall of the pump fixing base obstructs and does not move in the horizontal direction. . Therefore, when the pump is fixed to the pump fixing base, the pump does not move on the bottom wall due to the vibration of the pump.

Further, as described above, since the pump fixing base is simply supported and placed at the corner portion of the boundary between the bottom wall and the side wall, the pump fixing base is lifted to be attached to the pump fixing base. The attached pumps are pulled up at the same time. In this way, the pump can be easily repaired by pulling it up near the inlet together with the pump fixing base. As described above, in the wastewater unit tank of the present invention, the pump can be repaired without discharging the wastewater in the main body of the wastewater tank.

[0018]

Embodiments of the present invention will now be described with reference to the drawings. 1 and 2 show an embodiment of the present invention,
FIG. 1 is a cross-section of the sewage unit tank, and FIG. 2 is a cross-sectional view showing the bottom wall portion of the sewage tank body before the pump of the present invention is attached.

In the figure, 1 is a sewage unit tank,
The sewage unit tank 1 is provided in the sewage tank body 2, a sewage tank body 2, an inflow port 3 for inflowing sewage into the sewage tank body 2, an outflow port 4 for outflowing sewage to the outside of the sewage tank body 2. And a pump 5 that is installed.

Reference numeral 21 is a bottom wall of the waste water tank body 2, and 22 is a side wall of the waste water tank body 2. 6 is the bottom wall 2 of the main body 2 of the waste water tank
1 is a flat plate-shaped pump fixing base, and the pump fixing base 6 is placed so as to cover the entire bottom wall 21. The peripheral portion 61 of the pump fixing base 6 is supported by the corner portion of the boundary between the bottom wall 21 and the side wall 22.

Therefore, the side wall 12 of the pump fixing base 6 is a hindrance so that the pump fixing base 6 cannot move to the left or right. Further, this pump fixing base 6 is a flat plate made of FRP.
As shown in FIG.
Are formed. The pump mounting bolt 7 is provided on the protruding portion 62.

Next, a method of mounting the waste water tank unit will be described. Manufacture the wastewater tank body 2, and this wastewater tank body 2
The flat plate-shaped pump fixing base 6 is placed on the bottom wall 21 of the. Then
The pump fixing base 6 covers the bottom wall 21, and the peripheral portion 61 of the pop fixing base 6 is supported by the corner portion of the boundary between the bottom wall 21 and the side wall 22.

A hole is dug in the place where the sewage tank body 2 is installed, the sewage tank body 2 is installed in this hole, and an inflow pipe is attached to the inflow port 3. Further, the pump 5 is attached to the bolt 7 of the pump fixing base 6, the outflow pipe is attached to the outflow port of the pump 5, and the outflow pipe is guided from the outflow port 4 of the wastewater tank body 2 to the outside of the wastewater tank body 2.

Finally, when water is added so that the water level is equal to or lower than the upper limit water level, the installation of the sewage unit tank is completed.
Next, a method of using this dirty water unit tank will be described.

The sewage discharged from the home enters the sewage tank main body 2 through the inflow port 3. When this dirty water reaches or exceeds the upper limit water level, an upper limit switch (not shown) is activated to operate the pump 5,
The water level goes down.

At this time, the pump 5 vibrates, but since the pump 5 is fixed to the pump fixing base 6 and is not fixed to the bottom wall 11, this vibration does not directly affect the bottom wall 11 and therefore the bottom. The wall will not be damaged.

When the water level falls to the lower limit water level, a lower limit switch (not shown) is activated and the pump 5 is stopped. In this way, if the pump 5 is continuously operated for a long period of time, it is necessary to repair the pump 5.

When the pump 5 is repaired, the pump fixing base 6 to which the pump 5 is fixed is fixed together with the pump 5.
Lift up to near the inlet of the dirty water tank 1, and repair the pump 5 in this state.

In this way, the sewage unit tank 1 can be repaired by simply lifting the pump fixing base 6 together with the pump 5, and there is no need to discharge the sewage in the sewage tank main body 2 as in the conventional case. It is convenient.

Next, another embodiment shown in FIG. 3 will be described. Pump fixing base 6a used in the embodiment shown in FIG.
Is a plate 65 having a through hole 67 provided with four legs 66 at the edge thereof.
When placed on the bottom wall 21 of the wastewater tank body 2, the legs 66 are
1 and the side wall 22 are supported at the corners.

Others are the same as those of the embodiment shown in FIGS. 1 and 2, and they are used in the same manner, so that the description thereof will be omitted.

[0032]

[Effects of the Invention] Since the pump fixing base attached to the sewage tank of the pressure type sewer according to the present invention is placed so as to be supported at the corner portion between the bottom wall and the side wall, the vibration when the pump is in operation directly affects the sewage tank. It does not reach the bottom wall. Accordingly, since the bottom wall is not damaged, it is not necessary to make the bottom wall of the main body of the wastewater tank as strong as in the conventional case, and the manufacturing cost can be reduced.

When repairing the sewage unit tank,
Since the pump can be lifted and repaired together with the pump fixing base, it is convenient because there is no need to drain the waste water in the main body of the waste water tank.

[Brief description of drawings]

FIG. 1 is a sectional view showing an example of a sewage unit tank of a pressure type sewer according to the present invention.

FIG. 2 is a cross-sectional view showing the bottom wall portion of the waste water tank body shown in FIG. 1 before the pump is attached.

FIG. 3 is a sectional view showing a bottom wall portion before mounting a pump, showing another embodiment of the sewage unit tank of the pressure type sewer according to the present invention.

FIG. 4 is a cross-sectional view showing a conventional sewage unit tank of a pressure type sewer.

5 is a conventional wastewater tank body shown in FIG. 4,
It is sectional drawing which shows the bottom wall part before attaching a pump.

[Explanation of symbols]

 1 Sewage unit tank 2 Sewage tank main body 21 Bottom wall 22 Side wall 3 Inlet 4 Outlet 5 Pump 6, 6a Pump fixing base 61 Peripheral part of pump fixing base 65 Plate 66 Leg

Claims (3)

(57) [Scope of utility model registration request] 1. A sewage tank body for storing sewage, an inlet for letting sewage into the sewage tank body, an outlet for letting sewage out of the sewage tank body, and a pump for pumping sewage in the sewage tank body. In a sewage unit tank of a pressure type sewer consisting of, a pump fixing base supported on the corner portion of the boundary between the bottom wall and the side wall of the sewage tank main body is placed, and the pump is mounted on the pump fixing base. A sewage unit tank for pressure sewers, which is characterized by 2. The pump fixing base has a flat plate shape, and the flat plate-shaped pump fixing base is placed so as to cover the entire bottom wall, and the peripheral portion of the pump fixing base is a corner portion of the boundary between the bottom wall and the side wall. The sewage unit tank of the pressure type sewer according to claim 1, which is supported. 3. The pump fixing base is provided with a plurality of legs at an edge of a plate body, and the plurality of legs of the pump fixing base are provided at a corner portion of a boundary between the bottom wall and the side wall of the waste water tank. The sewage unit tank of the pressure type sewer according to claim 1, which is supported and placed.