JP2555904Y2 - Drainage structure in sewage pumping equipment such as human waste crushing pumping equipment and gray water pumping - Google Patents

Description

[Detailed description of the invention]

[0001]

This invention is provided in a toilet unit or a unit bath of an apartment house, a hotel, etc., and automatically crushes solids in human waste, and liquefies the waste water, bathtubs, and toilets. A urine crushing / pumping device that pumps together with miscellaneous wastewater from a sink, washing machine, etc. to a common standing pipe, and a bathtub, washbasin, washing machine, sink, etc. to drain miscellaneous wastewater or miscellaneous wastewater from a sink, etc. The present invention relates to a drainage structure in a sewage pumping device such as a wastewater pumping device provided exclusively or as a dual purpose.

[0002]

2. Description of the Related Art FIG. 13 and FIG. 14 show a typical human waste crushing and pumping apparatus ( actual sewage crushing and pumping apparatus).
In the figure, reference numeral 1 denotes a sewage crushing and feeding device, 1a a casing thereof, 2 a cutter for sewage crushing, 3 a pump for pumping waste water, and 4 a cutter 2 and a pump 3. A motor that is connected and driven coaxially, 5 is a strainer surrounding the crushing section, 6 is a defecation pipe from a toilet bowl that opens into the strainer 5, 7 is a water level in the casing 1a to detect and turn on / off the motor. Float switch, 8 is a drain horizontal branch pipe for draining miscellaneous drainage from a bathtub, a sink, a washing machine, etc. (connection of the horizontal branch pipe on the right side in the figure is omitted), and 9 is a casing 1a of the horizontal drain branch pipe. Opening 10
A flapper valve which is attached to a hinge (joint) 12 so as to be openable and closable; 11 is a float fixed to a lever 13 which rotates integrally with the flapper valve 9 with the hinge 12 as a fulcrum;
Is a pressure feed pipe connected to the discharge port of the pump 3 for pumping waste water to the common standing pipe, and 15 is a check valve (check valve) provided on the pressure feed pipe 14.

FIGS. 15 and 16 show a unit bath 17b in a hotel and the like, a bathroom 17a in an apartment house, a washroom 18a,
The figure shows a washroom 19a (sanitary zone). In the figure, 16 is a toilet bowl, 1 is a human waste crushing and pumping device attached to the toilet bowl 16, 17 is a bathtub, 18 is a washbasin, and 19 is a washing machine not shown. The bread to be placed, 20 is a drain horizontal branch pipe provided so that miscellaneous wastewater from the bathtub 17, the basin 18, the pan 19 and the like flows into the human waste crushing and pumping apparatus 1, and 21 is provided in the middle of the drain horizontal branch pipe. Bus and trap.

Next, the operation will be described. When excrement from the toilet bowl 16 flows into the casing 1a via the defecation pipe 6 at a dash through the crushing part having the cutter 2 surrounded by the strainer 5, the water level in the casing 1a rises and the float switch 7 exceeds the predetermined water level H. When the motor 4 is detected, the motor 4 is started. As a result, the cutter 2 and the pump 3 are driven, and the solid content in the human waste is crushed and liquefied by the cutter 2, passes through the strainer 5, and is discharged to the pressure feed pipe 14 by the pump 3. Further, the drainage pumped is prevented from flowing back into the casing 1a by the check valve 15. In addition, the bathtub 17 and the basin 1 pass through the drain horizontal branch pipe 8.
8. Since miscellaneous wastewater from a washing machine or the like placed on the pan 19 is also flowing in, if a large amount of human waste flows from the toilet 16 at a stretch during the inflow of the miscellaneous wastewater, the amount of inflow reduces the discharge capacity of the pump. Then, the water level in the casing 1a rises temporarily temporarily. At this time, sewage is discharged from the bathtub 1 through the drain horizontal branch pipe 8.
In order to prevent the backflow of the pan 7 and the like, the float 11 rises as the water level rises, and the flapper valve 9 is operated via the lever 13 to close.

[0005] Similar to the above-mentioned human waste crushing and pumping apparatus, a typical wastewater pumping apparatus among sewage pumping apparatuses is an apparatus having a structure obtained by removing the solid matter crushing structure from the above-mentioned human waste crushing and pumping apparatus. Therefore, the description of the structure and operation is omitted here.

[0006] The above is a normal operation. However, the human waste crushing and feeding apparatus 1 is locked when the crushing unit (cutter 2) breaks down or catches foreign matter, and is inoperable at the time of power failure. When such a human waste crushing and pumping apparatus 1 and a gray water pumping apparatus (not shown) are inoperable, not only does the residual wastewater in the casing 1a not be pumped, but in this state, residual wastewater such as residual hot water from the bath is removed from the casing. 1
a, the water level in the casing rises abnormally and eventually overflows from the casing, and near the operating water level (in the casing 1a) of the human waste crushing and pumping device 1 and the gray water pumping device. Drainage from a washing machine pan and the floor drainage system in the bathroom also caused a backflow phenomenon, which could cause a secondary disaster due to water damage.

Therefore, as a means for preventing the secondary disaster,
On the primary side of the water supply system that supplies water to each appliance, an electromagnetic valve (power failure) that senses a full warning water level when the inside of the casing 1a reaches an abnormal water level and shuts off the water supply system with an interlock circuit (power failure) Sometimes closed). However, the preventive means is effective in the water supply means used in each appliance, but when residual wastewater from the bathtub or the washing machine tub flows into the casing in a state in which the human waste crushing and pumping device 1 is inoperable. However, it cannot be any effective means.

[0008]

Problems to be Solved by the Invention Conventional sewage pumping devices such as human waste crushing and pumping devices and gray water pumping devices are constructed as described above. In particular, there is a problem that, in the inoperable state, the function of preventing secondary disaster due to water loss caused by water flowing into the casing from each appliance may be lacking. . Particularly at hotels, there was concern that progress could be made to compensation for business damages. Further, since the power of each device is electricity, for example, when a power crisis is shouted due to the tightening of power demand in the summer season, depending on electricity, it becomes impossible to use it in a power failure state, The amount of residual water in the bathtub or washing tub and the frequency of pump start / stop for the continuous inflow water are extremely increased, so that the pump operation noise becomes noticeable and there is a problem from the viewpoint of energy saving. .

The present invention has been made to solve the above-mentioned problem, and an object of the present invention is to provide a system in which residual drainage from a bathtub, a washing machine tub, or the like flows into an apparatus when the operation is disabled. When the inside reaches an abnormal water level, the residual wastewater in the equipment can be immediately and automatically discharged to the outside of the system, thereby preventing the flooding phenomenon from the equipment, while preventing malfunction and operation. It is an object of the present invention to provide a drainage structure in a sewage pumping apparatus such as a human crushing pumping apparatus and a gray water pumping apparatus which can function as a pumping unit in an impossible state, and can also perform sound insulation and energy saving during operation.

[0010]

SUMMARY OF THE INVENTION A drainage structure in a sewage pumping apparatus such as a human waste crushing pumping apparatus or a gray water pumping apparatus according to the present invention crushes solid waste and drains the crushed material together with gray water. Wastewater pumping device, or a drainage structure in a sewage pumping device such as a drainage pumping device configured to drain only the wastewater. When an abnormal water level occurs in the sewage pumping device, the stored sewage in the device is discharged. A siphon drain pipe for draining the water by a siphon action.

[0011]

[Function] In this invention, when operation is impossible such as failure or power outage, residual drainage flows from the bathtub or washing tub into the device, and when the inside of the device reaches an abnormal water level, the siphon phenomenon of the siphon drain pipe is induced. By doing so, it is possible to forcibly drain the inflow water from the inside of the device to the outside of the device at atmospheric pressure before the inside of the device is flooded.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a cross-sectional explanatory view of a first embodiment in which the present invention is embodied in a human waste crushing and feeding device, and FIG. FIG. 3 is a sectional view of a second embodiment in which the present invention is embodied in a human waste crushing and pumping apparatus. FIG.
FIG. 6 is a cross-sectional explanatory view of a third embodiment in which the present invention is embodied in a human waste crushing and pumping apparatus, FIG. 6 is a right side view of the same, and FIG. 7 is a cross-sectional description of an embodiment in which the present invention is embodied in a gray water pumping apparatus. FIG. 8, FIG. 8 is an explanatory view of a siphon phenomenon of a siphon drain pipe, FIG. 9 is an enlarged sectional explanatory view of a float valve mounting portion of the human waste crushing and pumping apparatus according to the first embodiment of the present invention shown in FIG. 1, FIG. 9 is an explanatory front view of the float valve in FIG. 9, FIG. 11 is an explanatory view taken along line AA of FIG. 9, and FIG. 12 is an explanatory sectional view showing another embodiment of the float valve. The same or corresponding parts as those in FIGS. 13 to 16 are denoted by the same reference numerals, and redundant description will be omitted.

In FIG. 1 to FIG. 6, reference symbol E denotes a human waste crushing / pumping device according to an embodiment of the present invention. When an abnormal water level occurs in the device E, a siphon drainage pipe drains stored wastewater in the device E by a siphon action. 40 are arranged. In the first embodiment shown in FIG. 1 and FIG.
A siphon drainage pipe 40 is provided in place of, and a suction opening 41 is formed at a required position inside the device E of the siphon drainage pipe 40, and the opening 41 is opened and closed at a predetermined water level H in the device E. Float valve 30 is provided.

In the second embodiment shown in FIGS. 3 and 4, the suction side 40a is provided in parallel with the pumping pipe 14 provided on the pump discharge side in the apparatus E, so that the suction side 40a is provided inside the apparatus E. And the discharge side 40b is communicated with the pressure feed pipe 14 on the side of the apparatus E, so that the siphon drain pipe 4
0, and a float valve 30 that opens and closes at a predetermined water level in the apparatus E is provided in the opening 41 on the suction side 40a.

Further, in the third embodiment shown in FIGS. 5 and 6, the suction side 40a is connected to the inside of the device E independently of the pumping pipe 14 provided on the pump discharge side in the device E. The siphon drain pipe 4 is disposed at a required position and the discharge side 40b is communicated with the drain pipe 50 outside the apparatus E.
0 is provided.

FIG. 7 is a schematic diagram showing the concept of the present invention.
This is an embodiment embodied in FIG. This wastewater pumping device G
Is a device having a structure obtained by removing the solid material crushing structure from the human waste crushing and pressure feeding device E, as described above. In this embodiment, as shown, the pressure feeding pipe 14 is connected to the pump discharge side in the device G. Instead, a siphon drainage pipe 40 is provided, and a suction opening 41 is formed at a required position inside the device G of the siphon drainage pipe 40, and the opening 41 is opened and closed at a predetermined water level H in the device G. A float valve 30 is provided. Note that other examples in which the present invention is embodied in the gray water pumping apparatus G are the same as the examples in which the above-described invention is embodied in the human waste crushing and pumping apparatus E, so that the illustration here is omitted.

Referring to FIGS. 1 to 6 and FIGS. 9 to 12, the structures of the excrement and pumping apparatus E and the float valve 30 will be described. In the figure, a pressure feed pipe 14 is connected to a discharge port of a drainage pressure feed pump 3 in a casing Ea and rises up to a flexible primary side pressure feed pipe 14A, and the primary side pressure feed pipe 14A.
Is connected to the upper end of the casing Ea via a check valve 15 and extends laterally toward the side wall of the casing Ea.
4B and the casing Ea
Pumping pipe 14C connected via a pipe joint at the side wall of
It is composed of (Siphon drain pipe 40 in the case of the first embodiment shown in FIGS. 1 and 2)
Is an opening 4 on the suction side 40a of the siphon drain pipe 40.
1 is connected to the valve case 31.
Has a valve port 32 that opens to an upper limit water level (abnormal water level) region in the casing Ea, as shown in FIG.

A valve guide 33 shown in FIGS. 9 and 11 is provided in the valve box 31. A valve body 34 for opening and closing the valve port 32 is slidably fitted into the valve guide 33. The float 36 is attached to the valve body 34 via an arm bar 35. Here, the arm bar 35 has a configuration in which an upper arm bar 35a and a lower arm bar 35b are integrally formed, and the upper arm bar 35a is connected to the center of the front surface of the valve body 34 via a pin P1 so as to be vertically rotatable. 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. Accordingly, in the float valve 30 configured as described above, when the float 36 rises in the closed state shown by the solid line in FIG. 9, the arm bar 35 rotates upward using the connection pin P2 of the lower arm bar 35b as a rotation fulcrum. As a result, the upper arm bar 35a
When the float 36 is lowered from this state, the arm bar 35 is rotated downward so that the valve body 34 is displaced to a position for closing the valve port 32 (a solid line position in FIG. 9). I have.

The valve body 34 of the float valve 30 is
The diameter of the valve port 32 of the valve box 31 is larger than that of the valve port 32.
2 is closed, there is no danger that the pumping drainage flowing through the pumping pipe 14 during the operation of the human crushing and pumping apparatus E will flow back into the casing Ea from the opening 41 on the suction side 40a of the siphon drainage pipe 40. Reference numeral 8a denotes an inflow drainage inlet provided at a lower portion of the side wall of the casing Ea, and a pipe or the like for inflowing drainage from a bathtub, a washing machine tub, or the like is connected to the inflow drainage inlet 8a. You.

Next, the operation will be described. In a state where the human waste crushing and pumping apparatus E is operating normally, solid matter in the human waste that has flowed into the casing Ea from the defecation pipe 6 is pulverized and liquefied by the cutter 2 and pumped by the pump 3 as in the conventional case. From the pipe 14 (siphon drain pipe 40 in the case of the first embodiment shown in FIGS. 1 and 2), the water is smoothly pumped and drained.
Since the water level in the casing Ea is maintained at a normal low level during the pressurized water discharge as described above, the float valve 3
0 is maintained in the valve closed state shown by the solid line in FIG. But,
If the human waste crushing and pumping device E breaks down or the crushing unit (the cutter 2) bites a foreign substance, or if there is a power outage, the human waste crushing and pumping device E becomes inoperable.

In such an operation-disabled state, not only does the residual wastewater in the casing Ea not be pumped, but in this state, residual wastewater such as residual hot water in the bath is removed from the casing Ea.
When flowing into a, the water level in the casing Ea 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 rises and pivots as shown by the two-point left line in FIG. 9 with the lower pin P2 as a pivot point. , The valve body 34 is pushed open. Therefore, the residual drainage in which the water level rises abnormally in the casing Ea induces the siphon phenomenon of the siphon drainage pipe 40 before overflowing from the casing Ea, thereby forcing the inflow water from the casing Ea at atmospheric pressure. Can be drained.

FIG. 12 shows another embodiment of the float valve 30 described above. In this embodiment, the arm bar type float valve 30 in the previous embodiment has a cylinder type configuration. That is, the float valve 3 of this embodiment
0, the valve body 31 is made vertical so that the valve port 32 is opened downward, and the siphon drain pipe 40 is connected to the side thereof, and the valve body 34 having the float 36 integrally in the valve box 31 is raised and lowered. It has a cylinder type configuration that can be fitted freely.
In this case, when the float valve body 34 does not receive the water pressure from the valve port 32, its own weight descends to a position where the valve port 32 and the opening 41 of the suction side 40a of the siphon drain pipe 40 are shut off. Even in the embodiment, the pumping wastewater flowing through the pumping tube 14 does not flow backward from the siphon drainage pipe 40 into the casing Ea during the operation of the excrement apparatus E. Further, the float valve body 34 is provided with a valve port 32.
When receiving the rising water pressure from above, it rises to communicate the valve port 32 and the connection opening 27. Therefore, even with the float valve 30 of this embodiment, the same operation and effect as those of the previous embodiment can be obtained.

As described above, in an operation-disabled state such as a failure or a power outage, residual drainage from a bathtub or a washing tub flows into the casing Ea (Ga) and the casing Ea (Ga).
a) When the inside reaches an abnormal water level, the float valve 3 provided in the opening 41 of the suction side 40a of the siphon drain pipe 40 is provided.
0 is opened, and the stored water that has reached the abnormal water level from the opening 41 flows through the pipe of the inverted U-shaped siphon drain pipe 40 in a full state, and eventually causes the pipe pressure to induce a siphon phenomenon below atmospheric pressure. Thus, before the inside of the casing Ea (Ga) overflows, the water flowing into the casing Ea (Ga) can be discharged from the casing to the outside of the system at atmospheric pressure. Therefore, the human waste crushing pumping device E and the gray water pumping device G
In addition, while the overflow phenomenon caused by the abnormal water level in the casing Ea (Ga) when the operation is not possible can be prevented beforehand, the function of the pumping unit in the failure or the inoperable state can be substituted. In addition, it is possible to reduce noise during operation and to save energy.

Next, the siphon phenomenon will be described with reference to FIG. 8. First, the inside of the casing Ea (Ga) is brought into a positive pressure state by the stored water in the bathtub and the like, and the discharge of the siphon drain pipe 40 is performed. Side to atmospheric pressure ± 0
Therefore, the water level on the suction side of the siphon drainage pipe 40 rises.
You . (See FIG. 8A.) Then, when the water level rises and the water and air flow through the siphon drainage pipe 40 in a separated state, the atmospheric pressure in the casing Ea (Ga) becomes ± 0, and the inside of the siphon drainage pipe 40 becomes Since it flows while discharging air, it gradually creates a water seal. (See FIG. 8B)
Furthermore, casing Ea (Ga) of siphon drainage pipe 40
Outside, that is, more than the amount of water filling the lower end (elbow portion), that is, this lower end is more than the upper limit of air floating (about 0. 0).
2 to 0.3 m / s), the inside of the pipe of the siphon drain pipe 40 becomes negative pressure, and a siphon phenomenon occurs, and the casing E
a (Ga) is sucked up into the casing E
It is discharged to a (Ga). Then, the casing Ea (G
It stops at the tube end level of the suction side opening 41 in a). (See FIG. 8 (c))

As described above, according to the drainage structure of the sewage pumping apparatus such as the human waste crushing pumping apparatus and the gray water pumping apparatus of the present invention, the secondary disaster due to water damage is achieved by the dual safe safe function of the pump and the siphon. It can be reliably prevented. Further, when an abnormal situation occurs, the stored water flowing into the casing can be discharged without energy.

[0026]

[Effect of the Invention] Since the present invention is configured as described above, in a state where operation is impossible such as a failure or a power failure, residual drainage flows from the bathtub or the washing tub into the apparatus, and when the inside of the apparatus reaches an abnormal water level. By inducing the siphon phenomenon of the siphon drain pipe, the inflow water can be forcibly drained from the inside of the apparatus to the outside of the apparatus at atmospheric pressure before the inside of the apparatus overflows. Therefore, it is possible to prevent a flooding phenomenon caused by an abnormal water level in the sewage pumping apparatus such as a human waste crushing pumping apparatus or a miscellaneous wastewater pumping apparatus when the pumping operation is not possible, while the pumping apparatus is in failure or inoperable state. The function of the unit can be substituted, and noise reduction during operation and energy saving can be achieved.

[Brief description of the drawings]

FIG. 1 shows the first embodiment of this invention embodied in a human waste crushing and pumping device.
It is sectional explanatory drawing of an Example.

FIG. 2 is an explanatory right side view of FIG. 1;

FIG. 3 shows a second embodiment of the present invention embodied in a human waste crushing and pumping apparatus.
It is sectional explanatory drawing of an Example.

FIG. 4 is an explanatory right side view of FIG. 3;

FIG. 5 is a third embodiment of the present invention embodied in a human waste crushing and pumping device.
It is sectional explanatory drawing of an Example.

FIG. 6 is an explanatory right side view of FIG. 5;

FIG. 7 is an explanatory cross-sectional view of one embodiment in which the present invention is embodied in a gray water pumping device.

FIG. 8 is an explanatory diagram of a siphon phenomenon of a siphon drain pipe.

FIG. 9 is an enlarged sectional explanatory view of a portion where the float valve is attached to the human waste crushing and feeding apparatus according to the first embodiment of the present invention shown in FIG. 1;

FIG. 10 is an explanatory front view of the float valve in FIG. 9;

FIG. 11 is an explanatory view taken along line AA of FIG. 9;

FIG. 12 is an explanatory sectional view showing another embodiment of the float valve.

FIG. 13 is an explanatory sectional view showing a conventional human waste crushing and feeding device.

FIG. 14 is an explanatory diagram illustrating the operation of the flapper valve in FIG. 13;

15 is an explanatory diagram of a drainage piping system of a unit bath incorporating the human waste crushing and pumping device of FIG. 13;

FIG. 16 is an explanatory diagram of a miscellaneous drainage piping in a sanitary zone in which the human waste crushing and pumping device of FIG. 13 is incorporated.

[Explanation of symbols]

 E sewage crushing and pumping device G miscellaneous sewage pumping device 30 float valve 40 siphon drainage pipe

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification code Agency reference number FI Technical display location C02F 11/00 ZAB C02F 11/00 ZABA

Claims (3)

(57) [Scope of request for utility model registration] 1. A wastewater pumping device such as a human waste crushing and pumping device that crushes solid waste and discharges the crushed material together with the wastewater, and a wastewater pumping device that drains only the wastewater. In the drainage structure according to the above, a siphon drainage pipe also serving as a pressure feed pipe is provided on the pump discharge side in the apparatus, and a suction opening is formed at a required position of the siphon drainage pipe inside the apparatus, and the apparatus is provided in the opening. A float valve that opens and closes at a predetermined water level in the inside of the device, and when an abnormal water level occurs in the device, drains the stored wastewater in the device by siphon action. Drainage structure in pumping equipment. 2. The solid waste is crushed and the crushed material is crushed.
Manure crushing and pumping equipment that drains water in combination with miscellaneous wastewater
Or a drainage pressure feeder that drains only the wastewater
The drainage structure of a sewage pumping device
The pump is connected to the pumping pipe provided on the pump discharge side of the unit.
Open the suction side at a required position inside the device.
The discharge side is connected to the pressure feed pipe outside the apparatus.
Closely provide a siphon drain pipe, in the opening on the suction side,
Provide a float valve that opens and closes at a predetermined water level in the device,
When an abnormal water level occurs in the device, stored sewage in this device
A drainage structure in a sewage pumping device, such as a human waste crushing pumping device or a gray water pumping device, characterized in that water is drained by a siphon action . 3. The float valve operates during operation of the device.
A check mechanism that prevents the pumping drainage from flowing back into the device
And operation failure due to failure of the device or power failure
During operation, the inside of the device is abnormally raised
The siphon drainage pipe due to the buoyancy of the float
It has an opening and closing function to open the opening on the insertion side.
A drainage structure in a sewage pumping device, such as a human waste crushing pumping device or a gray water pumping device according to claim 1 .