JPH0743229Y2 - Sewage crushing pumping device - Google Patents

Description

[Detailed description of the device]

[0001]

[Industrial application] This invention is provided in a toilet unit such as an apartment house or a hotel, or in a unit bath, and automatically crushes solids in human waste from a toilet bowl to liquefy sewage, a bathtub, and a washbasin. The present invention relates to an improvement of a human waste crushing and pressure-feeding device that pressure-feeds together with miscellaneous wastewater from a washing machine and the like to a common pipe.

[0002]

2. Description of the Related Art FIG. 8 and FIG.
It is the conventional human waste crushing and pressure-feeding device disclosed in Japanese Patent Publication No. 57-57. In the figure, 1 is a manure crushing pressure-feeding device, 1a is its casing, 2 is a cutter for crushing human waste, 3 is a pump for pumping waste water, 4 is a motor for connecting the cutter 2 and the pump 3 coaxially, and driving them. Is a strainer surrounding the crushing section, 6
Is a defecation pipe from a toilet bowl opening in the strainer 5, and 7 is a water level in the casing 1a for turning on / off the motor.
F-operated float switch, 8 for bathtub, sink for sink,
Horizontal drainage pipe for connecting miscellaneous wastewater from a washing machine (the horizontal branch pipe on the right side in the figure is omitted), 9 is a hinge (joint) 12 that opens and closes in an opening 10 in the casing 1a of the horizontal drainage pipe Flapper valve freely attached, 11 is flapper valve 9
A float fixed to a lever 13 that rotates integrally with a hinge 12 as a fulcrum, 14 is a pressure feed pipe that is connected to the discharge port of the pump 3 and pressure feeds wastewater to a common vertical pipe, and 15 is a check valve provided in the pressure feed pipe 14. (Check valve).

10 and 11 show a unit bath 17b of a hotel or the like, a bathroom 17a of an apartment house or the like, a washroom 18a, as sources of miscellaneous waste water connected by horizontal drain pipes.
In the figure, a toilet 19a (sanitary zone) is shown. In the figure, 16 is a toilet bowl, 1 is a manure crushing and pressure-feeding device attached to the toilet bowl 16, 17 is a bathtub, 18 is a washbasin, and 19 is a washing machine not shown. The pan to be placed, 20 is a horizontal drain pipe provided so that the waste water from the bathtub 17, the washbasin 18, the pan 19 and the like flows into the human waste crushing and pressure-feeding device 1, and 21 is provided in the middle of the horizontal drain pipe. It is a bus and trap.

Next, the operation will be described. When the human waste from the toilet bowl 16 flows through the defecation pipe 6 into the casing 1a at once through the crushing section having the cutter 2 surrounded by the strainer 5, the water level in the casing 1a rises and the float switch 7 exceeds a predetermined water level H. When the fact is detected, the motor 4 is started. As a result, the cutter 2 and the pump 3 are driven so that the solid content in the human waste is crushed and liquefied by the cutter 2, passes through the slorena 5, and is discharged to the pressure feed pipe 14 by the pump 3. Further, the check valve 15 prevents the drainage that has been pressure-fed from flowing back into the casing 1a.

Further, since the sewage discharged from the bathtub 17, the washbasin 18, and the washing machine placed on the pan 19 is also flowing in through the lateral drainage pipe 8, a large amount of human waste is suddenly discharged during the inflow of the sewage. When flowing in from the toilet bowl 16, the amount of inflow exceeds the discharge capacity of the pump, and the water level in the casing 1a temporarily rises rapidly. At this time, the sewage passes through the horizontal drain pipe 8 and the sewage flows into the bathtub 1.
In order to prevent the backflow of 7, the pan 19 and the like, the float 11 floats as the water level rises, and operates to close the flapper valve 9 via the lever 13.

The above is the normal operation, but the human waste crushing and pressure-feeding device 1 is in a locked state when the crushing portion (cutter 2) fails or bites foreign matter, and is in an inoperable state at the time of power failure. In such an inoperable state of the manure crushing and pressure-feeding device 1, not only the residual drainage in the casing 1a is not pumped, but in this state, when residual drainage such as the residual hot water of the bath flows into the casing 1a, Water level rises abnormally and eventually overflows from the casing, and also drains from the washing machine pan near the operating water level (in the casing 1a) level of the human waste crushing pumping device 1 and the floor drainage system in the bathroom. Caused a backflow phenomenon, which could result in a secondary disaster due to water loss.

Therefore, as a means for preventing the secondary disaster,
At the primary side of the water supply system that supplies water to each device, a solenoid valve (power failure) that detects a full water alarm level when the casing 1a reaches an abnormal water level and shuts off the water supply system by an interlock circuit. (Sometimes closed).

However, the above-mentioned preventive means is effective in the water supply means used in each device, but when the human waste crushing and pumping device 1 is inoperable, residual drainage water from the bathtub or the washing machine tub is stored in the casing. When it flows in, it cannot be any effective means.

[0009]

Since the conventional sewage crushing and pressure-feeding device is constructed as described above, it has the function of treating the residual drainage water of the bathtub, the washing machine tub, etc. when the sewage-crushing and pressure-feeding device is in an inoperable state. There is a problem that it is necessary, and in particular, there is a lack of a function of preventing a secondary disaster due to water loss caused by inflow of water from each device into the casing during the inoperable state.

The present invention has been made to solve the above-mentioned problems, and when the operation is impossible, the bathtub
When the residual drainage water from a washing machine tub or the like flows into the casing and reaches an abnormal water level in the casing, the residual drainage water in the casing can be immediately and automatically discharged to the outside of the system. An object of the present invention is to provide a human waste crushing and pressure-feeding device capable of preventing the phenomenon of water overflow from the casing.

[0011]

A human waste crushing and pressure-feeding device according to the present invention discharges residual drainage in a casing when an abnormal water level occurs in a casing containing a pump for pressure-feeding wastewater after crushing waste together with miscellaneous drainage. In order to do so, a bypass drain pipe or a single drain pipe connecting the inside of the casing and the pump discharge side pump pipe is provided, and the bypass drain pipe or the single drain pipe is opened at an abnormally high water level in the casing. It is provided with a float valve.

[0012]

In the device for pumping and crushing human waste according to the present invention, the crushing part is in a locked state due to a failure or biting of foreign matter, or
Water supply can be shut off by the solenoid valve of the water supply pipe system in the inoperable state such as power outage, and the residual drainage water from the bathtub, washing machine tub, etc. flows into the casing in the inoperable state and the casing When the inside reaches an abnormal water level,
By opening the float valve, the residual drainage in the casing is discharged to the outside of the system from the bypass drainage pipe or the single drainage pipe before the inside of the casing overflows. Therefore, it is possible to prevent the overflow phenomenon due to the abnormal rise of the water level in the casing when the human waste crushing and pressure-feeding device is inoperable, and thus prevent the secondary disaster due to water loss.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. It should be noted that the same or corresponding parts as those in FIGS. The illustrated pressure feed pipe 14 is used for the drainage pressure feed pump 3 in the casing 1a.
Flexible primary-side pressure feed pipe 1 that is connected to the discharge port and rises
4A and the check valve 1 at the upper end of the primary side pressure feeding pipe 14A.
5, a secondary side pressure feed pipe 14B extending laterally toward the side wall of the casing 1a, and an outer side connected to the secondary side pressure feed pipe 14B at a side wall portion of the casing 1a via a pipe joint. It is composed of a pressure feed pipe 14C. It should be noted that the check valve 15 is manufactured by the applicant of the present application in December 1991.
Application for utility model registration on the 28th of March (reference number NK298
4) It is preferable to adopt the same structure as that provided in the human waste crushing and pressure feeding device.

In FIGS. 1 and 2, reference numeral 25 is a bypass drain pipe connecting the inside of the casing 1a and the outer pressure feed pipe 14C, and in FIG. 3, 26 is a pipe connected to the inside of the casing 1a and led to the outside. It is a single drain pipe (overflow pipe). A float valve 30 is provided at the inflow end (opening end on the casing 1a side) of the bypass drain pipe 25 or the single drain pipe 26.

The float valve 30 comprises a valve box 31 provided on the side wall of the casing 1a and connected to the inflow end of the bypass drain pipe 25 or the single drain pipe 26. As shown in FIG. 4, the valve port 3 opening in the upper limit water level (abnormal water level) region in the casing 1a.
Have two. A valve guide 33 shown in FIGS. 4 and 6 is provided in the valve box 31.
A valve body 34 that opens and closes the valve opening 32 is slidably fitted into the valve 3. A float 36 is attached to the valve body 34 via an arm bar 35. Here, the arm bar 35 is configured to integrally include an upper arm bar 35a and a lower arm bar 35b, and the upper arm bar 35a is vertically rotatably connected to the center of the front surface of the valve body 34 via a pin P1. And the lower arm bar 3
5b is connected to the lower part of the valve box 31 via a pin P2 so as to be vertically rotatable.

Therefore, in the float valve 30 constructed as described above, when the float 36 moves up in the closed state shown by the solid line in FIG. 4, the arm bar 35 moves up with the connecting pin P2 of the lower arm bar 35b as the pivot point. By rotating, the upper arm bar 35a pushes open the valve body 34, and when the float 36 descends from this state, the arm bar 35 rotates downward to rotate the valve body 34.
Is configured to be displaced to a position where the valve port 32 is closed (position indicated by a solid line in FIG. 4).

The valve element 34 of the float valve 30 is
The valve opening 31 is formed to have a larger diameter than the valve opening 32 of the valve housing 31, and during operation of the human waste crushing and pumping apparatus 1, the valve opening 3 is opened from the inside of the valve housing 31.
Since 2 is closed, there is no possibility that the pressure-fed wastewater flowing through the pressure-feed pipe 14 during the operation of the human waste crushing pressure-feeding device 1 flows back into the casing 1a from the bypass drainage pipe 25 or the single drainage pipe 26.

Reference numeral 8a in FIGS. 1 and 3
Is a miscellaneous drainage inflow port provided at the lower portion of the side wall of the casing 1a, and a pipe or the like for inflowing the drainage from the bathtub, the washing machine tub, etc. is connected to this miscellaneous drainage inflow port 8a.

Next, the operation will be described. In the state where the human waste crushing and pressure-feeding device 1 is normally operated, as in the conventional case, the solid content in the human waste that has flowed into the casing 1a from the defecation pipe 6 is crushed into liquid by the cutter 2 and is pumped by the pump 3. The pipe 14 is smoothly pumped and discharged. During such pressure-feeding / draining, the water level in the casing 1a is maintained at a normal low level, so the float valve 30 is maintained in the closed state shown by the solid line in FIG.

However, when the human waste crushing and pressure-feeding device 1 fails, the crushing portion (cutter 2) bites a foreign substance, or a power failure occurs, the human waste crushing and pressure-feeding device 1 becomes inoperable. In such an inoperable state, not only the residual drainage in the casing 1a is not pumped up, but also in this state, the residual drainage such as the residual hot water in the bath is not discharged.
When it flows in, the water level in the casing 1a rises abnormally. At this time, the float 36 of the float valve 30 rises due to the abnormal water level rise, and the arm bar 35 turns upward as shown by the two-dot left line in FIG. 4 with the lower pin P2 as the fulcrum of rotation. The valve body 34 is pushed open. Therefore, the residual drainage water having an abnormally raised water level in the casing 1a is drained from the bypass drainage pipe 25 or the single drainage pipe 26 before overflowing from the casing 1a.

FIG. 7 shows another embodiment of the present invention. In this embodiment, the float valve 30 which is of the arm bar type in the previous embodiment is of the cylinder type. That is, in the float valve 30 of this embodiment, the valve box 31 is made vertical so that the valve port 32 is a downward opening, and the bypass drain pipe 25 or the single drain pipe 26 is connected to the side opening 27 of the valve box 31. The valve body 34 having the float 36 integrally formed therein is fitted in the valve box 31 so as to be movable up and down to have a cylinder type configuration. In this case, since the float valve element 34 descends by its own weight to a position that shuts off the valve opening 32 and the bypass drain pipe 25 or the connection opening 27 of the independent drain pipe 26 in a state where no water pressure is applied from the valve port 32. Even in this embodiment, the pressure feeding pipe 14 is operated during the operation of the human waste crushing pressure feeding device 1.
There is no possibility that the pressure-fed drainage that flows through the bypass drainage pipe 25 or the single drainage pipe 26 flows back into the casing 1a. Further, the float valve element 34 rises when it receives rising water pressure from the valve opening 32, and connects the valve opening 32 and the connection opening 27. Therefore, the float valve 3 of this embodiment
Even if it is 0, the same operational effect as in the case of the previous embodiment can be obtained.

[0022]

As described above, according to the sewage crushing and pressure-feeding device of the present invention, when an abnormal water level occurs in the casing containing the pump that pumps the wastewater after crushing the waste together with the miscellaneous wastewater,
In order to discharge the residual drainage in the casing, a bypass drainage pipe or a single drainage pipe connecting the inside of the casing and the pump discharge side pumping pipe is provided, and the bypass drainage pipe or the single drainage pipe is provided in the casing. Since a float valve that opens at an abnormally high water level is provided, the water supply can be shut off by the solenoid valve of the water supply pipe system when the crushing part is locked due to a malfunction or foreign matter is caught, or when operation is not possible due to a power failure. In addition, the residual drainage from the bathtub / washing machine tub, etc. flows into the casing when the operation reaches the abnormal water level in the casing, and the float valve opens and the inside of the casing is closed. The residual wastewater in the casing is discharged to the outside of the system from the bypass drainage pipe or the single drainage pipe before it overflows, so that the operation of the human waste crushing and pumping device becomes inoperable. The overflow phenomenon caused by abnormal level rise in the casing at the time of state can be prevented in advance, have been, there is an effect that can prevent secondary disasters due to water loss.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of an apparatus for crushing human waste according to an embodiment of the present invention.

FIG. 2 is a right side view of the casing in FIG.

FIG. 3 is a side view of a casing according to another embodiment of the present invention.

FIG. 4 is an enlarged sectional view of a float valve mounting portion according to an embodiment of the present invention.

5 is a front view of the float valve in FIG. 4. FIG.

FIG. 6 is a view taken along the line AA of FIG.

FIG. 7 is a sectional view showing a float valve according to another embodiment of the present invention.

FIG. 8 is a cross-sectional view showing a conventional human waste crushing and pressure-feeding device.

FIG. 9 is an operation explanatory view of the flapper valve in FIG.

FIG. 10 is a piping diagram of a miscellaneous drainage system of a unit bath incorporating the human waste crushing and pressure-feeding device of FIG.

FIG. 11 is a diagram of a miscellaneous drainage system piping in a sanitary zone in which the human waste crushing and pumping device of FIG. 8 is incorporated.

[Explanation of symbols]

 1 Sewage crushing pressure feeding device 3 Pump for drainage pressure feeding 14 Pressure feeding pipe 16 Toilet bowl 17 Bath tub 18 Washing sink 25 Bypass drainage pipe 26 Single drainage pipe 30 Float valve

Claims (2)

[Scope of utility model registration request] 1. A sewage is crushed from a toilet bowl in a toilet unit or a unit bath, and the crushed sewage is set as a set in the toilet bowl so that the sewage can be drained together with miscellaneous drainage from a washing machine, etc. In the provided manure crushing and pressure-feeding device, in order to discharge the residual drainage water in the casing when an abnormal water level occurs in the casing containing a pump that pumps the wastewater after crushing the waste together with the miscellaneous wastewater, the inside of the casing and the pump A bypass drain pipe or a single drain pipe that is connected to the discharge side pressure feed pipe is provided, and the bypass drain pipe or the single drain pipe is provided with a float valve that opens at an abnormally high water level in the casing. Sewage urine crushing pumping device. 2. The float valve is provided in a bypass discharge pipe, and is provided with a check mechanism for preventing backflow of pumped wastewater into the casing during operation of the human waste crusher pumping apparatus, and the urine crusher pumping pump. In an inoperable state due to a device failure or a power outage, when the casing has reached an abnormally elevated water level due to inflow and drainage from each device, the buoyancy of the float has an opening and closing function to open the drainage pipeline. Sewage urine crushing pumping device.