JPH04104876A - Human waste crushing and pumping device - Google Patents

Abstract

PURPOSE:To prevent spallation fragments from being stagnated in the corner of a storage tank by providing a recessed part on the bottom face thereof and installing a submergible pump and a water level detection switch therein and providing a gradient toward the recessed part from the four corners of the bottom face. CONSTITUTION:Night soil is allowed to flow together with carrier water from a water closet and introduced into the inside of a screen 7. This carrier water passes through the meshes of a screen 7 and falls into a storage tank 2 and the water level thereof is raised. When the water level is raised higher than the set water level of a water level detection switch 4, a submergible pump 3 is operated and the carrier water starts to be discharged. Simultaneously night soil and toilet paper remaining in a screen 7 are disintegrated with a cutter 8. When these are made smaller than the mesh of the screen 7, these fall into the storage tank 2 together with the carrier water and are force-fed into a force-feed drainage pipe 10 by the submergible pump 3. Herein the spallation fragments of night soil and toilet paper fall into a storage tank 2 and are dispersed into the carrier water. This carrier water dispersed therewith descends on a gradient face 2c and a sharp slope 2b and collects in a recess 2a and is sucked by the submergible pump 3 and discharged. Therefore the spallation fragments do not remain in the corners of the storage tank 2.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a human waste crushing and pumping device that is installed in various buildings such as houses, apartments, offices, etc., and pumps and discharges frozen ground and gray water.

(Conventional technology) In order to forcefully discharge the residual hot water from deep beds and baths collected in a storage tank, gray water from wash basins, etc., a submersible pump and a water level detection switch are installed in the storage tank, and the water is stored using the water level detection switch. The water level in the tank is detected and the submersible pump is operated to force the water out through the drain pipe. The basic performance required of such human waste crushing and pumping equipment is to ensure that when the submersible pump discharges the sewage in the storage tank and stops, there is as little water left in the storage tank as possible and no residue such as solid matter remains. It is important to keep the inside of the storage tank sanitary so that it is free from odors and insects.

A conventional human waste crushing and pumping device will be explained with reference to FIGS. 3 and 4.

FIGS. 3 and 4 are a partially cutaway perspective sectional view and a front sectional view of a conventional human waste crushing and pumping device.

In FIG. 3, a storage tank 2 sealed with a lid 1 is in the shape of a rectangular box with a flat bottom surface, and a submersible pump 3 and a water level detection switch 4 are installed inside the tank.

The above water level detection switch 4 detects the water in the storage tank 2.

The submersible pump 3 is automatically operated by detecting an increase or decrease in the water level. Gray water inlets 5 are provided at the lower portions of both sides of the storage tank 2, into which waste water such as leftover hot water from the bathtub and laundry wash basin flows.

A cylindrical screen 7 is attached to the upper end of the vertical electric motor 6 that is fixed integrally with the submersible pump 3, and as shown in FIG. A cutter 8 is fixed coaxially with. Storage tank 2
A deep bed flow port 9 provided above the front of the toilet is connected to a drain port of a flush toilet (not shown) and communicates with the side surface of the screen 7 described above. Furthermore, the above submersible pump 3
A pressure-feeding drain pipe 10 connected to the outlet of the storage tank 2 rises within the storage tank 2 and is led to the outside from the upper side of the tank.

The operation of the human waste crushing and pumping device configured as above will be explained.

The frozen ground that is flushed away from the flush toilet together with the conveyed water in the low tank (both not shown) flows into the screen 7 from the human waste inlet 9, and the conveyed water passes through the screen 7 and falls into the storage tank 2. Raise the water level. When the water level rises above the set water level of the water level detection switch 4, the submersible pump 3 is operated and begins discharging the conveyed water. At the same time, the frozen ground and toilet paper remaining in the screen 7 are crushed by the cutter 8, and when they become smaller than the mesh size of the screen 7, they flow down into the storage tank 2 together with the conveyed water, and are forced into the drain pipe 10 by the submersible pump 3. The gray water flowing in from the gray water inlet 5 is directly pumped by the submersible pump 3 and discharged from the pressure drain pipe 10 to a sewer or the like.

(Problem to be Solved by the Invention) However, in the above configuration, the deep bed and crushed pieces of toilet paper that have fallen into the storage tank 2 together with the conveyed water spread over the bottom surface of the storage tank 2, so they are Crushed fragments remain on the edges of the long plane, and this accumulates and creates an odor.
There was a problem with insects etc. In addition, this sediment solidifies and is sucked into the submersible pump 3, damaging the impeller, blocking the suction port of the submersible pump 3 and reducing pump performance, and in severe cases, causing the submersible pump 3 to operate. There was also a problem with the system stopping.

The present invention solves the above problems and provides a hygienic and highly reliable human waste crushing and pumping device that does not cause accumulation of crushed pieces.

(Means for Solving the Problems) In order to solve the above problems, the present invention provides a recess in the bottom of the storage tank 2 so that the submersible pump 3 and the water level detection switch 4 are installed, and It slopes towards.

(Function) With the above configuration, the frozen ground dispersed in the conveyed water and the crushed pieces of toilet paper flow down from the four circumferences of the bottom of the storage tank 2 into the recess, and are easily sucked in and discharged by the submersible pump 3. Therefore, since solid matter does not accumulate at the bottom of the storage tank 2, no odor is generated and no malfunction occurs in the submersible pump.

(Example) An example of the present invention will be described with reference to FIGS. 1 and 2.

FIG. 1 and FIG. 2 are a partially cutaway perspective sectional view and a front sectional view of a crushing, crushing, and pumping device according to the present invention.

In FIG. 1, this embodiment is different from the conventional example shown in FIG. A sloped surface 2c is provided toward the upper end of the surrounding steep slope 2b, and legs 11 whose height can be adjusted are provided at the four corners so that the bottom of the recess 2a does not hit the floor surface on which it is installed. It is. Since the rest is the same as the conventional example, the same components are given the same reference numerals and their explanations will be omitted.

The basic operation of the human waste crushing and pumping device configured as described above is the same as the conventional example, so it will be omitted here. 2c and down the steep slope 2b, there is a concave f along with the debris.
It collects in 112a, is sucked into the submersible pump 3, and is discharged. Therefore, no crushed pieces remain at the corners of the storage tank 2.

(Effects of the Invention) As explained above, according to the present invention, frozen ground and crushed pieces of toilet paper are efficiently collected and discharged at the suction port of the submersible pump, and no crushed pieces remain in the storage tank. Therefore, it is possible to obtain a hygienic urine collection, crushing and pumping device that does not give off a bad odor or attract insects.

[Brief explanation of the drawing]

FIGS. 1 and 2 are a partially cutaway perspective sectional view and a front sectional view of a urine collection crushing and pumping device according to the present invention, and FIGS. 3 and 4 are a part of a conventional urine collection crushing and pumping device. FIG. 2 is a perspective cross-sectional view and a front cross-sectional view thereof. DESCRIPTION OF SYMBOLS 1... Lid, 2... Storage tank, 2a... Recessed part, 2
b... Steep slope, 2C... Sloped surface, 3... Submersible pump, 4... Water level detection switch, 5... Gray water inlet, 6... Electric motor, 7... Screen, 8 ... Cutter, 9... Human waste inlet, 1
0...Pressure drainage pipe, 11...Legs. Diagram

Claims (1)

[Claims] A storage tank provided with a human waste inlet and a gray water inlet, a submersible pump installed in the storage tank and connected to a pressure-feeding drain pipe, and a cutter coaxially fixed on the submersible pump,
In a human waste crushing and pumping device, which comprises a screen communicating with the human waste inlet, which is provided to surround the cutter, and a water level detection switch, which is provided in the storage tank and automatically operates the submersible pump. A human waste crushing and pumping device, characterized in that a concave portion for arranging a submersible pump and a water level detection switch is provided at the bottom of the storage tank, and a sloped surface is formed from the outer wall of the storage tank toward the concave portion.