CN108978828B - Toilet flushing device - Google Patents

Abstract

The invention provides a toilet flushing device, which can prevent dirt from splashing outside a basin part from a water accumulation surface when the dirt is crushed, can prevent the dirt from splashing to the inner surface of the basin part above the water accumulation part from the water accumulation surface, or can prevent the water level from rising due to the disorder of the water accumulation surface and the dirt from attaching to the inner surface of the basin part above the water accumulation part. The toilet flushing device comprises: a water accumulation part forming a water accumulation surface below the basin part; and a rotating body disposed in the water accumulation section, the water accumulation section including: a 1 st swirling flow generating part provided with a rotating body, and generating a 1 st swirling flow by rotation of the rotating body; and a 2 nd swirling flow generating part for generating a 2 nd swirling flow having a flow velocity slower than that of the 1 st swirling flow on the water collecting surface, and for pulverizing the dirt by the 1 st swirling flow of the 1 st swirling flow generating part, wherein the 2 nd swirling flow generating part generates the 2 nd swirling flow, and moves the dirt on the water collecting surface side by the 2 nd swirling flow toward the 1 st swirling flow generating part.

Description

Toilet flushing device

Technical Field

The present invention relates to a toilet flushing device, and more particularly to a toilet flushing device for discharging waste by crushing the waste.

Background

In a conventional general toilet apparatus, drainage is performed by utilizing the inclination of a pipe from a toilet to a sewer. On the other hand, water saving of the toilet flushing device is continuously demanded. When the water saving of the toilet flushing device is advanced, since the amount of cleaning water is reduced, it is difficult to convey dirt only by the inclination of the piping, and there is a problem that the piping is easily clogged.

Then, as shown in patent document 1, a toilet device has been proposed in which a rotating body is rotated to crush dirt and the crushed dirt is then discharged to the outside of a toilet. In such a toilet device, even when water saving is performed, since the waste is crushed and then discharged, clogging of the downstream pipe can be prevented. In the toilet apparatus of patent document 1, since the waste is crushed in the water accumulating portion without separately providing a crushing chamber for crushing the waste, the toilet apparatus can be made smaller. The miniaturization of the toilet flushing device is particularly effective when a sufficient area cannot be secured in the toilet.

Patent document 1: japanese laid-open patent publication No. 2015-151694

Disclosure of Invention

However, the toilet flushing apparatus requires not only solid waste but also various waste such as floating waste floating in standing water and toilet paper to be crushed. In order to reliably pulverize various contaminants in a structure in which a pulverization chamber is not provided as shown in patent document 1, it is necessary to stir water in the water storage unit by the rotating body to a large extent or to form a water flow having a high flow velocity in the water storage unit. In this case, the water accumulation surface is greatly disturbed, and there is a new problem that the water level of the water accumulation surface is raised and the filth is attached to the inner wall surface of the toilet stool above the water accumulation portion, or the filth is splashed from the water accumulation surface to the outside of the bowl portion, or the filth is splashed to the inner surface of the bowl portion above the water accumulation portion. Such problems are not only insanitary but also give users unpleasant feelings in terms of smell, beauty, and the like.

The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a toilet flushing device that can suppress splashing of dirt from a water accumulation surface to the outside of a bowl portion, suppress splashing of dirt from the water accumulation surface to the inner surface of the bowl portion above the water accumulation portion, or suppress adhesion of dirt to the inner surface of the bowl portion above the water accumulation portion due to an increase in water level caused by disturbance of the water accumulation surface when the dirt is crushed.

In order to achieve the above object, the present invention provides a toilet flushing device for discharging crushed waste, comprising: a bowl portion having a bowl-shaped dirt receiving surface opened upward; a drainage pipeline communicated with the basin part; a water accumulation part which stores accumulated water at the upstream side of the drainage pipeline so as to form a water accumulation surface below the basin part; a water supply unit for supplying washing water to the tub unit; and a rotating body which is disposed in the accumulated water stored in the water accumulating unit and generates a swirling flow in the water accumulating unit, wherein the water accumulating unit includes: a 1 st swirling flow generating part provided with a rotating body, and generating a 1 st swirling flow by rotation of the rotating body; and a 2 nd swirling flow generating portion that generates a 2 nd swirling flow, which is a swirling flow having a flow velocity slower than that of the 1 st swirling flow, on the water collecting surface, the 1 st swirling flow generating portion generates a 1 st swirling flow, and pulverizes dirt by the 1 st swirling flow, the 2 nd swirling flow generating portion generates a 2 nd swirling flow, and moves the dirt on the water collecting surface side of the water collecting portion to the 1 st swirling flow generating portion by the 2 nd swirling flow, the rotating body is provided at a position not overlapping with the water collecting surface below the bowl portion in a plan view, the 1 st swirling flow generating portion and the 2 nd swirling flow generating portion are formed in a horizontal direction in the plan view, the 1 st swirling flow and the 2 nd swirling flow generating portion are formed as swirling flows swirling in a horizontal direction in the plan view, only one rotating body is provided in the water collecting portion, and the 1 st swirling flow generated by the rotating body induces the 2 nd swirling flow in the 2 nd swirling flow generating portion, a flow dividing section for dividing a part of the 1 st swirling flow to the 2 nd swirling flow generating section side is provided between the 1 st swirling flow generating section and the 2 nd swirling flow generating section of the water storage section.

In the present invention thus constituted, the water accumulating portion of the toilet flushing device has the 1 st swirling flow generating portion for generating the 1 st swirling flow for pulverizing the filth by the rotation of the rotating body, and therefore, the filth such as solid filth present in the vicinity of the rotating body can be pulverized by the 1 st swirling flow. The water collecting unit is configured to include a 2 nd swirling flow generating unit that generates a 2 nd swirling flow having a flow velocity slower than that of the 1 st swirling flow on the water collecting surface so as to move the dirt on the water collecting surface side of the water collecting unit toward the 1 st swirling flow generating unit. Accordingly, the floating dirt and toilet paper floating on the water surface can be moved by the 2 nd swirling flow so as to be drawn into the 1 st swirling flow generating portion, and can be pulverized by the 1 st swirling flow. In this way, not only dirt near the rotating body but also dirt floating on the water surface and toilet paper can be crushed. Further, although the 2 nd swirling flow is formed on the water collecting surface side, since the flow speed is slower than the 1 st swirling flow, the occurrence of disturbance on the water collecting surface can be suppressed. Therefore, even when a strong water flow for crushing various kinds of dirt such as solid dirt, floating dirt, and toilet paper is formed in the water accumulating portion at the time of crushing the dirt, the dirt can be prevented from splashing outside the basin portion from the water accumulating surface, the dirt can be prevented from splashing to the inner surface of the basin portion above the water accumulating portion from the water accumulating surface, or the dirt can be prevented from adhering to the inner surface of the basin portion above the water accumulating portion due to the water level rising caused by the turbulence of the water accumulating surface.

In the present invention, it is preferable that the rotating body is provided at a position not overlapping with the water collection surface below the bowl portion in a plan view, the 1 st swirling flow generating portion and the 2 nd swirling flow generating portion are formed in a horizontal direction in a plan view, and the 1 st swirling flow and the 2 nd swirling flow are formed as swirling flows swirling in a horizontal direction in a plan view.

In the present invention thus constituted, since the 1 st and 2 nd swirling flows form a swirling flow swirling in the horizontal direction in plan view, the 1 st and 2 nd swirling flows can be formed without increasing the height of the water storage portion as compared to a case where the 1 st and 2 nd swirling flows are formed as swirling flows swirling in the vertical direction. Further, for example, when the 1 st and 2 nd swirling flows are to be formed as swirling flows swirling in the vertical direction, a new partition plate needs to be provided and the structure may be complicated, but since the 1 st and 2 nd swirling flows are formed as swirling flows swirling in the horizontal direction in a plan view, the structure can be prevented from being complicated. Therefore, the water reservoir can be prevented from having a large height and a high seat surface. Further, it is possible to prevent the structure from becoming complicated and dirt from easily remaining in the water reservoir. Therefore, the water storage part is formed without increasing the height of the water storage part by a simple structure, and the 1 st and 2 nd swirling flows can be formed.

Further, since the rotating body is provided at a position not overlapping with the water collection surface of the water collection unit in a plan view, the 1 st swirling flow can be formed at a position not overlapping with the water collection surface. Therefore, when the dirt is crushed, the disturbance of the 1 st swirling flow to the accumulated water surface can be more reliably suppressed. Further, since the 1 st swirling flow generating unit and the 2 nd swirling flow generating unit are formed in a horizontal direction in plan view, the 1 st swirling flow and the 2 nd swirling flow are formed in a horizontal direction in plan view, respectively, and a swirling flow that swirls in a horizontal direction in plan view is formed. Since the 1 st swirling flow having a high flow velocity in the 1 st swirling flow and the 2 nd swirling flow is formed at a position not overlapping the water surface and the 2 nd swirling flow having a low flow velocity is formed at the water surface, the occurrence of disturbance in the water surface can be suppressed more reliably.

In the present invention, it is preferable that the rotation axis of the rotating body extends in the vertical direction.

In the present invention thus constituted, the rotating body rotates about the rotation axis extending in the vertical direction, and therefore, the 1 st swirling flow that swirls in the horizontal direction in a plan view can be formed with a simple configuration.

In the present invention, it is preferable that the 1 st swirling flow generating unit and the 2 nd swirling flow generating unit are provided such that the 2 nd swirling flow swirls in a direction opposite to the 1 st swirling flow.

In the present invention thus constituted, interference between the 1 st and 2 nd swirling flows formed in a horizontal direction in plan view is less likely to occur, and the 1 st and 2 nd swirling flows can maintain their respective swirling flows.

In the present invention, it is preferable that the 1 st swirling flow generating portion is formed such that at least a part of an inner wall of the 1 st swirling flow generating portion becomes a wall surface along a virtual circle centered on the rotation axis of the rotating body in a plan view.

In the present invention thus constituted, in the 1 st swirling flow generating portion, the swirling flow generated by the rotating body can flow along a wall surface along an imaginary circle centered on the rotation axis of the rotating body. Accordingly, the generation of turbulence in the water flow in the 1 st swirling flow generating portion can be suppressed, and the 1 st swirling flow can be generated more efficiently.

In the present invention, it is preferable that the 2 nd swirling flow generating portion is formed such that a wall surface on the opposite side of the 1 st swirling flow generating portion side in a plan view is formed in an arc shape.

In the present invention thus constituted, in the 2 nd swirling flow generating portion, the water flow can flow along the arc-shaped wall surface on the opposite side of the 1 st swirling flow generating portion side. Accordingly, the generation of turbulence in the water flow in the 2 nd swirling flow generating portion can be suppressed, and the 2 nd swirling flow can be generated more reliably. This makes it possible to more reliably move floating dirt and toilet paper floating on the water surface to the 1 st swirling flow generating unit and crush the dirt and toilet paper.

In the present invention, it is preferable that only one rotating body is provided in the water storage unit, and the 2 nd swirling flow in the 2 nd swirling flow generating unit is induced by the 1 st swirling flow generated by the rotating body.

In the present invention thus constituted, the 1 st swirling flow generating unit generates the 1 st swirling flow, and the 1 st swirling flow can induce the 2 nd swirling flow in the 2 nd swirling flow generating unit, with a simple configuration in which only one rotating body is provided in the water accumulating portion.

In the present invention, it is preferable that a flow dividing section that divides a part of the 1 st swirling flow to the 2 nd swirling flow generating section side is provided between the 1 st swirling flow generating section and the 2 nd swirling flow generating section of the water storage section.

In the present invention thus constituted, the flow dividing section divides a part of the 1 st swirling flow to the 2 nd swirling flow generating section side, and the 2 nd swirling flow in the 2 nd swirling flow generating section can be easily generated by the 1 st swirling flow. Therefore, the 2 nd swirling flow is more reliably formed, and the floating dirt and toilet paper floating on the water surface can be more reliably crushed.

In the present invention, it is preferable that a guide portion for guiding the water flow flowing from the flow splitting portion to the 2 nd swirling flow generating portion side along the wall surface is provided on the inner wall surface of the water collecting portion on the 2 nd swirling flow generating portion side with respect to the flow splitting portion in the horizontal cross section of the water collecting portion.

In the present invention thus constituted, since the guide portion guides the water flow flowing from the flow dividing portion to the 2 nd swirling flow generating portion side along the wall surface, the water flow on the inner wall surface on the 2 nd swirling flow generating portion side of the flow dividing portion is less likely to be disturbed, and the 2 nd swirling flow can be easily generated. Thus, the 2 nd swirl flow can be generated more reliably.

In the present invention, it is preferable that the rotating body is disposed above the 1 st swirling flow generating portion.

In the present invention thus constituted, the rotating body is disposed above the 1 st swirling flow generating portion, and therefore, the rotating body is disposed closer to the water collecting surface in the height direction than in the case where the rotating body is disposed below the 1 st swirling flow generating portion. Accordingly, the 1 st swirling flow generated by the rotating body is formed relatively close to the water collecting surface in the height direction, and the 2 nd swirling flow can be generated more reliably. Further, by disposing the rotating body above the 1 st swirling flow generating portion, it is possible to make it difficult for dirt deposited in the water accumulating portion to adhere to the rotating body.

In the present invention, it is preferable that the 2 nd swirling flow generating portion has a guide portion that guides the water flow on the outer peripheral side of the 2 nd swirling flow toward the center side.

In the present invention thus constituted, the water flow on the outer circumferential side of the 2 nd swirling flow can be directed toward the center side by the guide portion. Therefore, the adhesion of dirt to the upper part of the water collection surface when the dirt is crushed due to the turbulence of the water flow on the outer peripheral side of the 2 nd swirling flow can be suppressed.

In the present invention, it is preferable that the wall surface of the bowl portion surrounding the ponding surface includes: an inclined portion; and a sharp inclined portion inclined more than the inclined portion, wherein the guide portion is formed such that a horizontal curvature radius of the wall surface gradually decreases, and a turning center of the 2 nd swirling flow guided by the guide portion is eccentric toward the inclined portion side.

In the present invention thus constituted, the turning center of the 2 nd swirling flow can be eccentric toward the inclined portion side by the guide portion. In the turning center portion of the 2 nd turning flow, the rising of the water collecting surface is suppressed more than in the peripheral portion. Therefore, even when the water collection surface rises due to the formation of the 2 nd swirling flow, the water level on the inclined portion side is less likely to rise, and the collected water can be prevented from seemingly spreading relatively widely on the surface on the inclined portion side and flowing back. On the other hand, on the steeply inclined portion side, since water is relatively less likely to diffuse and the occurrence of reverse flow is less likely to appear, even if the water surface rises relatively greatly due to the 2 nd swirl flow, this phenomenon is not noticeable. In this way, when the 2 nd swirling flow is generated, the water collecting surface on the inclined portion side can be made lower than the water collecting surface on the steeply inclined portion side by the guide portion, and therefore, the water collecting surface can be suppressed from rising and spreading on the inclined portion.

According to the toilet flushing device of the present invention, when the dirt is crushed, the dirt can be prevented from splashing outside the bowl portion from the water accumulation surface, the dirt can be prevented from splashing to the inner surface of the bowl portion above the water accumulation portion from the water accumulation surface, or the dirt can be prevented from adhering to the inner surface of the bowl portion above the water accumulation portion due to the water level rising caused by the turbulence of the water accumulation surface.

Drawings

Fig. 1 is an overall perspective view of a portable toilet apparatus according to embodiment 1 of the present invention, as viewed from obliquely above from behind.

Fig. 2 is a sectional view showing a portable toilet apparatus according to embodiment 1 of the present invention.

Fig. 3 is a plan view showing a bowl portion of the portable toilet apparatus according to embodiment 1 of the present invention.

Fig. 4 is a side view showing a rotating body of a crushing apparatus of a portable toilet apparatus according to embodiment 1 of the present invention.

Fig. 5 is a bottom view of the rotating body of the crushing device of the portable toilet device according to embodiment 1 of the present invention as viewed from below.

Fig. 6 is a schematic view showing a state in which a user discharges into the portable toilet flushing device shown in fig. 2 and dirt enters the bowl portion.

Fig. 7 is a schematic view showing a state in which the washing operation is performed in the portable toilet apparatus shown in fig. 2.

Fig. 8 is a schematic view showing a state in which a water level lowering operation for discharging the washing water so as to lower the water level of the accumulated water to a predetermined water level is performed in the portable toilet apparatus shown in fig. 2.

Fig. 9 is a schematic view showing a state in which the portable toilet flushing apparatus shown in fig. 2 performs the dirt crushing operation.

Fig. 10 is a schematic view showing a state in which the pressurized supply operation of the washing water is performed in the portable toilet apparatus shown in fig. 2.

Fig. 11 is a schematic view showing a state of a water supply operation for supplying washing water so as to form accumulated water in the portable toilet apparatus shown in fig. 2.

Fig. 12 is a schematic cross-sectional view showing a water accumulation unit and a rotating body of a portable toilet device according to embodiment 1 of the present invention.

Fig. 13 is a sectional view taken along line XIII-XIII in fig. 12.

Fig. 14 is a sectional view taken along the line XIV-XIV of fig. 12.

Fig. 15 is a sectional view taken along the XV-XV line of fig. 12.

Fig. 16 is a sectional view as viewed along line XVI-XVI in fig. 12.

Fig. 17A is a schematic view showing a water surface state before the 2 nd swirling flow is generated in the portable toilet device shown in fig. 2.

Fig. 17B is a schematic view showing a water accumulation surface state when the turning center of the 2 nd swirling flow is eccentric to the inclined portion side in the portable toilet apparatus shown in fig. 2.

Fig. 17C is a schematic view showing a state where the washing water containing the filth flows out to the steeply inclined portion side when the turning center of the 2 nd swirling flow is eccentric to the inclined portion side in the portable toilet apparatus shown in fig. 2.

Fig. 18A is a schematic view showing a water surface state before the 2 nd swirling flow is generated in the portable toilet device of the comparative example.

Fig. 18B is a schematic view showing a water accumulation surface state when the turning center of the 2 nd swirling flow is not eccentric to the inclined portion side in the portable toilet device of the comparative example.

Fig. 18C is a schematic view showing a state where the washing water containing the filth flows out to the inclined portion side and the steeply inclined portion side when the turning center of the 2 nd swirling flow is not eccentric to the inclined portion side in the portable toilet apparatus of the comparative example.

Fig. 19 is an overall perspective view of the toilet apparatus according to embodiment 2 of the present invention, as viewed from obliquely above from behind.

Fig. 20 is a sectional view showing a toilet flushing device according to embodiment 2 of the present invention.

Description of the symbols

1-portable toilet flushing device; 1 a-a wheel; 2-the toilet body; 4-a water supply part; 6-a frame; 6 a-frame bottom; 8-a water supply pipe; 10-a basin part; 10 a-an inclined portion; 10 b-a steep slope; 10 c-water outlet; 10 d-a dirt receiving surface; 12-a drain trap line; 12 a-a riser; 14-a water accumulation part; 16-a drain pipe; 18-a crushing device; 20-a pressurized delivery device; 22-a filter; 22 a-through opening; 24-a control section; 26-a rotator; 26 a-a protrusion; 28-axis of rotation; 30-an electric motor; 32-a pump chamber; 34-an impeller; 34 a-disc portion; 34 b-a protrusion; 36-a rotation axis; 38-an electric motor; 40-1 st swirling flow generating part; 40 a-wall; 42-2 nd swirling flow generating part; 42 a-wall; 44-a flow splitting section; 46-a guide; 48-a guide; 101-a toilet-flushing device; 102-a toilet body; 108-a water supply pipe; 110-a tub portion; 110 c-water outlet; 114-a water accumulation part; 116-a drain pipe; a-dirt; a-a soil; b-washing water; c-washing water; f-ground; f1-1 st swirling flow; f2-2 nd swirling flow; l 0-distance; l 1-distance; l 2-distance; v1-flow rate; v2-flow rate; w0-ponding surface; w1-ponding surface; w2-ponding surface;

w3-ponding surface; an X-center of gyration; x0-center of gyration.

Detailed Description

Next, a portable toilet apparatus according to embodiment 1 of the present invention will be described with reference to the drawings. First, the overall configuration of a portable toilet apparatus according to embodiment 1 of the present invention will be described with reference to fig. 1 and 2.

As shown in fig. 1, the portable toilet apparatus 1 (toilet apparatus) according to embodiment 1 of the present invention may be a flush toilet apparatus disposed in a place other than a toilet, and is used in a place other than a normal toilet space, for example, a toilet apparatus disposed for nursing use in a living room of a user, a bedside in a bedroom, or the like in a single residence, an elderly person facility, a hospital, or the like (hereinafter, referred to as a "building"). Among the elderly and patients, even those who have difficulty in getting to a toilet or feel a burden on the toilet can use the toilet in their living room.

The portable toilet device 1 includes a toilet main body 2, a water supply unit 4 for supplying washing water to the toilet main body 2, and a frame 6 for supporting the toilet main body 2.

In addition, the portable toilet flushing device 1 is a removable non-mounted device. The portable toilet apparatus 1 is formed such that the frame bottom 6a of the frame 6 is not fixed to the floor F, and a user, a worker, or the like can move using the wheels 1a or the like.

The water supply unit 4 is connected to a water supply facility on the building side via a flexible water supply pipe 8. The water supply unit 4 is provided at the rear upper portion of the toilet main unit 2, and supplies washing water to the bowl portion 10 from a water discharge port 10c formed in the bowl portion 10. The water supply unit 4 may be a tank type in which washing water is supplied from a storage tank. The water supply pipe 8 is formed by a water supply hose or the like.

As shown in fig. 2, the toilet main body 2 includes: a bowl 10 provided on the front side of the toilet main body 2 and receiving dirt; a drain trap pipe (drain pipe) 12 which is provided to communicate with the bottom of the tub 10 and discharges dirt together with the washing water; and a water accumulating part 14 formed below the tub part 10.

The bowl portion 10 includes a bowl-shaped dirt receiving surface 10d that opens upward. The drain trap pipe line 12 includes an upward rising pipe 12a extending upward and forms a drain trap. The drain trap pipe 12 is connected to a drainage facility on the building side via a flexible drain pipe 16 connected to the downstream side of the drain trap pipe 12. The crushed sewage is discharged from the drain elbow pipe 12 through the drain pipe 16. The drain pipe 16 is formed of a drain hose or the like.

As shown in fig. 2, the portable toilet apparatus 1 further includes: a crushing device 18 for crushing the dirt; a pressure feed device (pressure feed unit) 20 for feeding the crushed sewage to the drain pipe 16 under pressure; a filter 22 provided between the crushing device 18 and the pressure feed device 20; an operation unit (not shown) operated by a user; and a control unit 24 for controlling the cleaning operation, the pulverizing/pressurizing/conveying operation, and the like of the portable toilet apparatus 1.

The pulverizing device 18 pulverizes the dirt by generating a swirling flow. The crushing device 18 is provided below the rear of the bowl 10 and above the water accumulation unit 14. The crushing device 18 includes: a rotating body 26 which is disposed in the water stored in the water storage unit 14 and generates a swirling flow in the water storage unit 14 so as to pulverize the dirt; a rotation shaft 28 of the rotating body 26; and an electric motor 30 for driving the rotary body 26 and the rotary shaft 28.

As shown in fig. 4 and 5, the rotating body 26 forms a disk for forming a flow of water for pulverizing dirt in the water accumulating portion 14. A plurality of protrusions 26a standing downward are formed on the lower surface of rotor 26. The protrusions 26a facilitate the formation of a swirling flow of the washing water and the dirt. Further, as long as the rotating body 26 can generate the swirling flow, it may be a crushing portion that physically crushes dirt by a blade such as a knife.

The rotating shaft 28 is attached to the electric motor 30 at its upper portion, extends downward in the vertical direction, and is attached to the center of the rotating body 26 at its lower portion as follows. Rotation shaft 28 extends to rotary body 26 through water reservoir 14, and directly transmits the driving force of electric motor 30 to rotary body 26. Instead of the rotation shaft 28, the rotation shaft may be configured by a non-contact type rotation transmission mechanism using a magnet or the like so that the driving force of the electric motor 30 is indirectly transmitted to the rotating body 26 via the water storage unit 14 without penetrating the top surface of the water storage unit 14. The electric motor 30 is a DC brushless motor and is capable of variable speed control.

The pressurized conveying device 20 forms a centrifugal pump which can achieve a high head. The pressure-feed device 20 pressure-feeds the dirt crushed in the water accumulating portion 14 together with the washing water and discharges the dirt to the downstream side of the drain trap pipe 12. The pressure conveyor 20 includes: a pump chamber 32; an impeller 34 that rotates inside the pump chamber 32; the rotational shaft 36 of the impeller 34; and an electric motor 38 for driving the impeller 34 and the rotary shaft 36.

A flow path extending from the lower portion of the filter 22 of the water accumulating portion 14 is connected to an inlet of the central portion of the pump chamber 32, and the drain trap pipe 12 is connected to the outer peripheral portion of the upper portion of the pump chamber 32.

The impeller 34 includes: a disc portion 34a having a disc shape; and a protrusion 34b protruding from a part of the disk portion 34 a. The dirt and the wash water are relatively strongly pushed out from the pump chamber 32 toward the drain trap pipe 12 by the centrifugal force generated by the rotation of the impeller 34, and are pressurized and conveyed.

A pressurized delivery device 20 is disposed laterally at the rear lower portion of the portable toilet device 1. Thus, the rotary shaft 36 is arranged to extend in a substantially lateral direction parallel to the front-rear direction of the toilet body 2. Thus, the height of the toilet main body 2 can be suppressed from rising. The rotating shaft 36 is attached to the electric motor 38 at its bottom and to the center of the disc portion 34a at its tip. The rotary shaft 36 extends through the pump chamber 32 to the impeller 34, and directly transmits the driving force of the electric motor 38 to the impeller 34. Instead of the rotary shaft 36, the rotary shaft may be formed by a non-contact type rotation transmission mechanism using a magnet or the like so that the driving force of the electric motor 38 is indirectly transmitted to the impeller 34 via the pump chamber 32 without penetrating through a side wall of the pump chamber 32. The electric motor 38 is a DC brushless motor and is variable speed controllable. The pressure feed device 20 may be changed to a suction device such as a vacuum suction device for the drain water provided on the downstream side of the drain trap pipe 12. The crushed dirt crushed in the water accumulating portion 14 can be sucked together with the washing water and discharged to the downstream side of the drain trap pipe 12 by the suction device.

The filter 22 is disposed on the bottom surface of the water reservoir 14 below the pulverizer 18. The filter 22 has a plurality of passage openings 22a having a predetermined size. The dirt crushed to a predetermined size or less can pass through the opening 22a, while the dirt larger than the predetermined size is restricted from passing through and remaining on the filter 22 in the water accumulating portion 14.

The control unit 24 controls the water supply unit 4, the pulverization device 18, and the pressure feed device 20 by the operation of the operation unit or the setting of the user. The control unit 24 incorporates a CPU, a memory, and the like for controlling these. The control unit 24 is electrically connected to the water supply unit 4, the crushing apparatus 18, the pressure feed apparatus 20, and the like, and transmits an operation signal to these apparatuses and the like to operate the respective apparatuses and the like.

Next, the water storage unit 14 of the portable toilet device 1 will be described with reference to fig. 2, 3, and 6 to 10.

The water reservoir 14 is formed below the tub 10. The water reservoir 14 communicates with the drain trap pipe 12 via the pump chamber 32. The water reservoir 14 stores the accumulated water on the upstream side of the drain trap pipe 12 so as to form a water accumulation surface W0 (water accumulation surface in a standby state) below the bowl portion 10. The water reservoir 14 is formed as an L-shaped reservoir extending rearward from the lower portion of the bowl 10. At the time of crushing the dirt, the water accumulating portion 14 is in a state where the washing water is stored in a portion extending rearward and below the water accumulating surface W0.

The rotor 26 is attached to the water accumulation portion 14 at a position not overlapping the water accumulation surface W0 below the bowl portion 10 in a plan view. The rotary body 26 is disposed rearward of the water collection surface W0 and forward of the impeller 34 in plan view. Only one of the rotating bodies 26 is provided at one position in the water accumulating portion 14. The water storage unit 14 is formed such that the rotary body 26 is disposed at a position lower than the height position of the water storage surface W0 before cleaning and at a height position above the water stored in the water storage unit 14.

The water storage unit 14 further includes: a 1 st swirling flow generating section 40 provided with the rotating body 26 and generating a 1 st swirling flow in the vicinity of the rotating body 26; and a 2 nd swirling flow generating part 42 for generating a 2 nd swirling flow, which is a swirling flow having a flow velocity slower than that of the 1 st swirling flow, on a water collecting surface W3, which is a water collecting surface at the time of dirt grinding.

The 1 st swirling flow generating unit 40 generates the 1 st swirling flow F1 by the rotation of the rotating body 26, and pulverizes the dirt by the 1 st swirling flow F1 having a relatively high flow velocity. The 1 st swirling flow generating portion 40 is formed in the water storage portion 14 on the side where the rotating body 26 is arranged in the direction in which the water storage portion 14 extends. In plan view, the 1 st swirling flow generating portion 40 is formed such that at least a part of the inner wall thereof is a wall surface 40a along an imaginary circle centered on the rotation shaft 28 of the rotating body 26.

The 2 nd swirling flow generating unit 42 generates a 2 nd swirling flow F2 having a flow velocity V2 slower than the flow velocity V1 of the 1 st swirling flow F1 at the water collection surface W3, and moves the dirt on the water collection surface W3 side in the water collection portion 14 toward the 1 st swirling flow generating unit 40 by the relatively slow 2 nd swirling flow. The 2 nd swirling flow generating portion 42 is formed in the water accumulating portion 14 on the opposite side to the 1 st swirling flow generating portion 40 in the direction in which the water accumulating portion 14 extends, and is formed in an arc shape of a wall surface 42a on the opposite side to the 1 st swirling flow generating portion 40 side of the 2 nd swirling flow generating portion 42 in a plan view.

The 1 st swirling flow generating portion 40 and the 2 nd swirling flow generating portion 42 are formed in a horizontal direction in a plan view. A flow dividing portion 44 that divides a part of the 1 st swirling flow F1 toward the 2 nd swirling flow generating portion 42 is provided between the 1 st swirling flow generating portion 40 and the 2 nd swirling flow generating portion 42 of the water accumulating portion 14. A convex portion protruding inward from the inner wall of the water accumulating portion 14 near the front end of the rotator 26 is formed in the flow dividing portion 44. The flow dividing portion 44 may be formed of a flat surface.

In the water accumulating portion 14, a guide portion 46 that guides the flow of water flowing from the flow splitting portion 44 toward the 2 nd swirling flow generating portion 42 side along the wall surface is provided on the inner wall surface of the 2 nd swirling flow generating portion 42 side of the flow splitting portion 44 between the 1 st swirling flow generating portion 40 and the 2 nd swirling flow generating portion 42 in the horizontal cross section of the water accumulating portion 14. The guide portion 46 is formed between the wall surface on the side of the flow dividing portion 44 and the 2 nd swirling flow generating portion 42 by a curved surface so that the flow flowing along the wall surface from the flow dividing portion 44 is less likely to be peeled off.

The 1 st swirling flow generating unit 40 and the 2 nd swirling flow generating unit 42 are arranged in the water accumulating unit 14 in a front-rear direction such that the 2 nd swirling flow F2 swirls in a direction opposite to the 1 st swirling flow F1 in a plan view.

As shown in fig. 3, 7, 8, and 9, the 2 nd swirling flow generating portion 42 includes a guide portion 48 that guides the water flow on the outer peripheral side of the 2 nd swirling flow F2 so as to face the center side. Here, the wall surface of the bowl portion 10 surrounding the ponding surface W3 includes: an inclined portion 10a where the inclination occurs; and a steeply inclined portion 10b inclined more than the inclined portion 10 a. The guide portion 48 is formed such that the horizontal radius of curvature of the wall surface gradually decreases from the front to the rear, and the turning center of the 2 nd swirling flow F2 guided by the guide portion 48 is eccentric toward the inclined portion 10 a.

Next, the operation (action) of the portable toilet apparatus according to embodiment 1 of the present invention will be described with reference to fig. 6 to 17. Fig. 6 to 11 are schematic views of the washing water stored in broken lines.

As shown in fig. 6, the user uses the toilet main unit 2 to put waste (feces, urine, toilet paper, etc.) a into the bowl 10. In this state, the water supply unit 4 is stopped, and the pulverization device 18 and the pressure feed device 20 are also stopped. The water collection surface becomes the water collection surface W1 that is higher than the water collection surface W0 in the standby state before cleaning due to the dirt a in the water collection unit 14.

Next, as shown in fig. 7, the user operates an operation switch or the like of the operation unit to start the washing operation. When an operation switch or the like of the operation unit is operated, an operation command is sent to the control unit 24, and the control unit 24 sends a water supply command to the water supply unit 4 in accordance with the command, and water is supplied from the water supply unit 4 to the bowl portion 10 for a predetermined time, and the bowl portion 10 is washed with the washing water B. The dirt a outside the water accumulating portion 14 in the bowl portion 10 is in a state of being moved to the water accumulating portion 14 by the washing water B. The water collection surface W2 is located at a position higher than the water collection surface W1 by the supply of the washing water B. The crushing apparatus 18 and the pressure feed apparatus 20 are still in a stopped state.

Next, as shown in fig. 8, the controller 24 drives the pressure feed device 20 to discharge only the washing water C of a predetermined flow rate through the drain trap pipe 12 so as to lower the water level of the water collecting surface W2. The amount of washing water present in the water storage unit 14 decreases, and the water storage area of the water storage unit 14 is located at the water storage surface W3. The control unit 24 drives the pressure feeding device 20 for a predetermined time and then stops it again. At this time, the water supply unit 4 continues to be stopped, and the pulverizer 18 also continues to be stopped. Among the dirt a, dirt having a predetermined size or more remains in the water accumulating portion 14 without passing through the filter 22.

Next, as shown in fig. 9, the control unit 24 drives the crushing device 18 to perform a crushing operation on the dirt. At this time, the pressurized transport device 20 continues to be kept in the stopped state. Thus, the dirt in the water reservoir 14 is pulverized by the swirling flow. Water supply unit 4 continues to be stopped. The soil a is crushed into soil a having a predetermined size or less. The present invention may drive the crusher 18 while keeping the water level W2, and the crusher 18 is not limited to being driven to lower the water level to the position of the water level W3.

Here, the operation of pulverizing the dirt in the water storage unit 14 will be described in detail with reference to fig. 12 to 16. In fig. 12 to 16, the arrows indicating the water flow are shown by the thickest solid line arrow, the second thick solid line arrow, and the thin solid line arrow in order of the high flow speed.

The control unit 24 operates the electric motor 30 of the pulverizer 18 to rotate the rotary body 26. By the rotation of the rotating body 26, a swirling flow is generated in the vicinity of the rotating body 26. The 1 st swirling flow generating unit 40 generates a 1 st swirling flow F1 from the swirling flow. The 1 st swirling flow F1 is formed on the lower side of the rotating body 26. As shown in fig. 14, 15, and 16, the 1 st swirling flow F1 is formed as a swirling flow that swirls in the horizontal direction in plan view. At this time, the 1 st swirling flow F1 forms a swirling flow along the wall surface 40a toward the outer circumference. Further, as shown in fig. 12, the 1 st swirling flow F1 is formed in a longitudinal section: a water flow descending along the outer periphery of the 1 st swirling flow generating portion 40; and a water flow in which the descending water flow ascends from the center of the 1 st swirling flow generating unit 40 in a plan view. In this way, in the vicinity of the rotating body 26, the 1 st swirling flow F1 forms a water flow that strongly pulverizes the dirt a in the horizontal direction and the vertical direction.

The water flow split by the splitting portion 44 in the 1 st swirling flow F1 flows toward the 2 nd swirling flow generating portion 42 side due to centrifugal force. Thus, the 1 st swirling flow F1 induces the 2 nd swirling flow F2 in the 2 nd swirling flow generating section 42. The water flow flowing from the flow splitting portion 44 toward the 2 nd swirling flow generating portion 42 forms the 2 nd swirling flow F2 along the guide portion 46, and flows along the inner circumference of the 2 nd swirling flow generating portion 42 while being suppressed from being separated from the wall surface of the guide portion 46.

As shown in fig. 13 to 16, the 2 nd swirling flow F2 is formed as a swirling flow that swirls in the horizontal direction in plan view. At this time, the 2 nd swirling flow F2 forms a swirling flow smoothly along the arc outer periphery along the wall surface 42 a. The 1 st swirling flow F1 and the 2 nd swirling flow F2 are formed in a horizontal direction in a plan view. Since the 2 nd swirling flow F2 swirls in a swirling direction opposite to the 1 st swirling flow F1, interference between the 2 nd swirling flow F2 and the 1 st swirling flow F1 can be suppressed, and the washing water can smoothly flow between the swirling flows.

As shown in fig. 12, the 2 nd swirling flow F2 rises from the guide portion 46 toward the water surface W3 in the longitudinal cross section, and forms a 2 nd swirling flow F2 on the water surface W3. Therefore, even at a position above the position of the rotator 26, the 2 nd swirling flow F2 is formed.

As shown in fig. 3 and 13, the 2 nd swirling flow F2 forms a swirling flow and forms a downward flow descending from the center of the swirling flow. The 2 nd swirling flow F2 forms a flow of water that introduces the floating-type dirt on the standing water W3 from the center of the swirling flow to below. The 2 nd swirling flow F2 also forms a circulating flow in the vertical cross section, which flows downward from the central region of the 2 nd swirling flow generating portion 42, flows from below the water accumulating portion 14 toward the 1 st swirling flow generating portion 40 side, and flows upward from the center of the 1 st swirling flow generating portion 40 in a plan view. In this way, the 2 nd swirling flow F2 merges again with the 1 st swirling flow F1 in the 1 st swirling flow generating unit 40. The 1 st swirling flow F1 and the 2 nd swirling flow F2 are connected at a plurality of portions within the water pooling portion 14. The flow velocity V2 of the 2 nd swirling flow F2 is slower than the flow velocity V1 of the 1 st swirling flow F1, and the 2 nd swirling flow F2 forms a flow of water that moves the washing water and the dirt a (fig. 8 and the like) from the vicinity of the water collecting surface W3 to the 1 st swirling flow generating unit 40. In this way, the soil a is carried to the 1 st swirling flow F1 side by the 2 nd swirling flow F2, and the soil a is crushed by the 1 st swirling flow F1 to become the soil a having a predetermined size or less.

As shown in fig. 13 to 15, the 2 nd swirling flow F2 is guided by the guide portion 48 such that the water flow on the outer circumferential side of the 2 nd swirling flow F2 is directed toward the center side. Therefore, the water flow on the outer peripheral side of the 2 nd swirling flow F2, which has a faster flow speed than the center side, is concentrated toward the center of the water collecting surface W3, and is suppressed from spreading. Further, the adhesion of the dirt to the upper side of the water collecting surface W3 due to the turbulence of the flow of the cleaning water on the outer peripheral side of the 2 nd swirling flow F2 can be suppressed.

As shown in fig. 3, 13, 17, and the like, since the guide portion 48 is formed such that the horizontal radius of curvature of the wall surface gradually decreases from the front to the rear, the turning center X of the 2 nd swirling flow F2 guided by the guide portion 48 is eccentric toward the inclined portion 10 a. Fig. 17A to 17C illustrate changes in state of the water collection surface W3 when the turning center X of the 2 nd swirling flow F2 is eccentric toward the inclined portion 10a, in schematic cross-sectional views.

Fig. 17A shows a state of the water collecting surface W3 before the 2 nd swirling flow F2 is generated in the water collector 14. Fig. 17B shows a state of the water collecting surface W3 when the turning center X of the 2 nd swirling flow F2 is eccentric toward the inclined portion 10a in the water collecting portion 14. The turning center X moves toward the inclined portion 10a on the front side with respect to the turning center X0 (see fig. 18B). The water level W3 is in a state where the position of the swirl center portion of the 2 nd swirl flow F2 is the lowest, and the water level W3 rises upward due to centrifugal force as it goes from the swirl center portion to the peripheral portion side. As shown in fig. 17C, since the turning center X is eccentric toward the inclined portion 10a, a distance l1 from the turning center X to the inclined portion 10a is shorter than when the turning center X is not eccentric toward the inclined portion 10a, and a rising height h1 of the washing water containing the pulverized filth is lower than when the turning center X is not eccentric toward the inclined portion 10a, thereby suppressing the filth and the like from flowing out toward the inclined portion 10 a. The height h1 represents the height of the water surface W3 from the center X of gyration to the inner end of the inclined portion 10 a.

On the other hand, the distance l2 from the turning center X to the steeply inclined portion 10b is longer than the distance l1, the height h2 of the water collection surface W3 is higher than the height h1, and the washing water containing the filth flows out to the steeply inclined portion 10b side. The bulging height h2 represents the bulging height of the water surface W3 from the rotation center X to the inner end of the steeply inclined portion 10 b. However, the inclination angle of the wall surface on the side of the steeply inclined portion 10b is relatively large, and the outflow height of the outflowing washing water at the steeply inclined portion 10b is suppressed. Moreover, the outflow range and area of the washing water in the rapidly inclined part 10b can be made inconspicuous in appearance.

As a comparative example, a change in state of the water collection surface W3 when the turning center X0 of the 2 nd swirling flow F2 is not eccentric toward the inclined portion 10a side will be described with reference to fig. 18A to 18C. Fig. 18A shows a state of the water collecting surface W3 before the 2 nd swirling flow F2 is generated in the water collector 14. Fig. 18B shows a state of the water surface W3 when the turning center X0 of the 2 nd swirl flow F2 is not eccentric toward the inclined portion 10a in the water accumulating portion 14. Since the gyration center X0 is not eccentric toward the inclined portion 10a side, the distance l0 from the gyration center X0 to the inclined portion 10a is longer than the distance l1 (fig. 17B), and the swell height h0 of the washing water containing the filth is higher than the swell height h 1. Therefore, as shown in fig. 18C, the washing water containing the dirt flows out to the inclined portion 10a side beyond the inner end portion of the inclined portion 10 a. At this time, since the inclination angle of the inclined portion 10a is relatively gentle, the washing water flowing out is likely to spread over a wide range on the inclined portion 10a, and the stains are relatively conspicuous. As described above, when the turning center X0 of the 2 nd swirling flow F2 of the comparative example is not eccentric toward the inclined portion 10a, there is a possibility that washing water containing dirt adheres to the inclined portion 10a over a wide range and is contaminated over a wide range.

Returning to fig. 10, when the crushing of the dirt is completed, the control unit 24 stops the crushing device 18 and drives the pressure feed device 20. The pressure-feed device 20 pressure-feeds (discharges) the washing water and the dirt a having passed through the filter 22 to the drain pipe 16 via the drain trap pipe 12. In this way, the dirt a is discharged from the water accumulating portion 14.

Finally, as shown in fig. 11, the controller 24 operates the water supply unit 4 again to supply water to the bowl 10. Therefore, the washing water is stored in the water storage unit 14, and the water is stored on the water storage surface W0. At this time, the crushing device 18 and the pressure feed device 20 are stopped. When the washing water of a predetermined flow rate is supplied, the control unit 24 stops the water supply unit 4 and ends a series of washing operations.

Next, the operation and effects of the portable toilet apparatus 1 according to the present embodiment will be described.

According to the portable toilet device 1 of the present embodiment, since the water storage unit 14 includes the 1 st swirling flow generating unit 40 that generates the 1 st swirling flow F1 for pulverizing the filth in the vicinity of the rotating body 26 from the swirling flow generated by the rotating body 26, the filth such as solid filth present in the vicinity of the rotating body 26 can be pulverized by the 1 st swirling flow F1. The water collector 14 is configured to include a 2 nd swirling flow generating portion 42 that generates a 2 nd swirling flow F2 having a flow velocity slower than that of the 1 st swirling flow F1 on the water collection surface W3 so as to move the dirt on the water collection surface W3 side in the water collector 14 toward the 1 st swirling flow generating portion 40. Accordingly, the dirt and toilet paper floating on the water surface W3 are moved by the 2 nd swirling flow F2 to be drawn into the 1 st swirling flow generating unit 40, and can be pulverized by the 1 st swirling flow F1. In this way, not only dirt near the rotating body 26 but also dirt and toilet paper floating on the water collection surface W3 can be crushed. Further, since the 1 st swirling flow F1 having a high flow velocity is generated on the rotating body 26 side in the water reservoir 14, it is possible to suppress the 1 st swirling flow F1 from disturbing the water surface W3 when the dirt is crushed. Further, although the 2 nd swirling flow F2 is formed on the water collecting surface side, since the flow speed is slower than the 1 st swirling flow F1, the occurrence of disturbance of the water collecting surface W3 can be suppressed. Therefore, even when a strong water flow for crushing various kinds of dirt such as solid dirt, floating dirt, and toilet paper is formed in the water accumulating portion 14 at the time of crushing the dirt, it is possible to suppress the dirt from splashing from the water accumulating surface W3 to the outside of the bowl portion 10, to suppress the dirt from splashing from the water accumulating surface W3 to the inner surface of the bowl portion 10 above the water accumulating portion 14, or to suppress the dirt from adhering to the inner surface of the bowl portion 10 above the water accumulating portion 14 due to the water level rising caused by the disturbance of the water accumulating surface W3.

Further, according to the portable toilet device 1 of the present embodiment, since the 1 st swirling flow F1 and the 2 nd swirling flow F2 form swirling flows swirling in the horizontal direction in plan view, the 1 st swirling flow F1 and the 2 nd swirling flow F2 can be formed without increasing the height direction size of the water storage portion 14, as compared with a case where the 1 st swirling flow F1 and the 2 nd swirling flow F2 are formed as swirling flows swirling in the vertical direction. Further, for example, when the 1 st swirling flow F1 and the 2 nd swirling flow F2 are to be formed as swirling flows swirling in the vertical direction, a new partition plate for directing the swirling flows toward the water collecting surface W3 may be required to make the structure complicated, but the 1 st swirling flow F1 and the 2 nd swirling flow F2 are formed as swirling flows swirling in the horizontal direction in a plan view, respectively, and therefore, the structure can be prevented from being complicated. Therefore, the water reservoir 14 can be prevented from having a large height and a high seat surface. Further, it is possible to prevent the structure from becoming complicated and dirt from easily remaining in the water storage unit 14. Accordingly, the water storage unit 14 is formed with a simple structure without increasing the height of the water storage unit 14, and the 1 st swirling flow F1 and the 2 nd swirling flow F2 can be formed. Further, since the rotating body 26 is provided at a position not overlapping the water collecting surface W3 of the water collecting unit 14 in a plan view, the 1 st swirling flow F1 can be formed at a position not overlapping the water collecting surface W3. Therefore, when the dirt is crushed, the disturbance of the water collection surface W3 by the 1 st swirling flow F1 can be more reliably suppressed. Further, since the 1 st swirling flow generating unit 40 and the 2 nd swirling flow generating unit 42 are formed to be arranged in the horizontal direction in plan view, the 1 st swirling flow F1 and the 2 nd swirling flow F2 are formed to be arranged in the horizontal direction in plan view, respectively, and a swirling flow that swirls in the horizontal direction in plan view is formed. Among the 1 st swirling flow F1 and the 2 nd swirling flow F2, the 1 st swirling flow F1 having a relatively high flow velocity is formed at a position not overlapping the water collection surface W3, and the 2 nd swirling flow F2 having a relatively low flow velocity is formed at the water collection surface W3, and therefore, the occurrence of disturbance of the water collection surface W3 can be suppressed more reliably.

Further, according to the portable toilet device 1 of the present embodiment, since the rotary body 26 rotates about the rotary shaft 28 extending in the vertical direction, the 1 st swirling flow F1 swirling in the horizontal direction can be formed by a simple configuration.

Further, according to the portable toilet device 1 of the present embodiment, the 1 st swirling flow F1 and the 2 nd swirling flow F2 formed in a horizontal direction in a plan view are less likely to interfere with each other, and the 1 st swirling flow F1 and the 2 nd swirling flow F2 can maintain their respective swirling.

Further, according to the portable toilet device 1 of the present embodiment, the swirling flow generated by the rotating body 26 can flow along the wall surface 40a in the 1 st swirling flow generating portion 40. Accordingly, the turbulence of the water flow in the 1 st swirling flow generating unit 40 can be suppressed, and the 1 st swirling flow F1 can be generated more effectively.

Further, according to the portable toilet device 1 of the present embodiment, the water flow can flow along the arc-shaped wall surface 42a on the opposite side of the 1 st swirling flow generating portion 40 side in the 2 nd swirling flow generating portion 42. Accordingly, the generation of turbulence in the water flow in the 2 nd swirling flow generating portion 42 can be suppressed, and the 2 nd swirling flow F2 can be generated more reliably. This makes it possible to more reliably move the dirt and toilet paper floating on the water collecting surface W3 to the 1 st swirling flow generating unit 40 and crush the dirt and toilet paper.

Further, according to the portable toilet device 1 of the present embodiment, the 1 st swirling flow generating unit 40 generates the 1 st swirling flow F1 and the 1 st swirling flow F1 can induce the 2 nd swirling flow F2 in the 2 nd swirling flow generating unit 42, with a simple configuration in which only one rotating body 26 is provided in the water accumulating unit 14.

Further, according to the portable toilet device 1 of the present embodiment, the diversion section 44 diverts a part of the 1 st swirling flow F1 toward the 2 nd swirling flow generating section 42, and the 1 st swirling flow F1 can easily generate the 2 nd swirling flow F2 in the 2 nd swirling flow generating section 42. Therefore, the 2 nd swirling flow F2 is more reliably formed, and floating dirt and toilet paper floating on the water accumulation surface W3 can be more reliably crushed.

Further, according to the portable toilet device 1 of the present embodiment, since the guide portion 46 guides the water flow flowing from the flow dividing portion 44 toward the 2 nd swirling flow generating portion 42 along the wall surface, the water flow is less likely to be disturbed at the inner wall surface on the 2 nd swirling flow generating portion 42 side than the flow dividing portion 44, and the 2 nd swirling flow F2 can be easily generated. Thus, the 2 nd swirling flow F2 can be generated more reliably.

Further, according to the portable toilet device 1 of the present embodiment, since the rotating body 26 is disposed above the 1 st swirling flow generating portion 40, the rotating body 26 is disposed closer to the water collecting surface W3 in the height direction than in the case where the rotating body 26 is disposed below the 1 st swirling flow generating portion 40. Accordingly, the 1 st swirling flow F1 generated by the rotating body 26 is formed relatively close to the water surface W3 in the height direction, and the 2 nd swirling flow F2 can be generated more reliably. Further, by disposing rotating body 26 above first swirling flow generating unit 40, it is possible to make it difficult for dirt deposited in water accumulating unit 14 to adhere to rotating body 26.

Further, according to the portable toilet apparatus 1 of the present embodiment, the guide portion 48 can direct the water flow on the outer peripheral side of the 2 nd swirling flow F2 toward the center side. Therefore, the adhesion of dirt to the upper part of the water collection surface when the dirt is crushed due to the turbulence of the water flow on the outer peripheral side of the 2 nd swirling flow F2 can be suppressed.

Further, according to the portable toilet device 1 of the present embodiment, the turning center of the 2 nd swirling flow F2 can be eccentric toward the inclined portion 10a by the guide portion 48. The 2 nd swirling flow F2 suppresses the rising of the water collecting surface W3 more than the peripheral portion on the swirling center portion side. Therefore, even when the water collection surface W3 rises due to the formation of the 2 nd swirling flow F2, the water level on the inclined portion 10a side is less likely to rise, and the collected water can be prevented from seemingly spreading relatively widely on the surface on the inclined portion 10a side and flowing back. On the other hand, on the steeply inclined portion 10b side, water is more difficult to diffuse than on the inclined portion 10a side, and the occurrence of reverse flow is difficult to see, and therefore, even if the water accumulation surface W3 rises relatively largely by the 2 nd swirling flow F2, this phenomenon is not noticeable. When the 2 nd swirling flow F2 occurs in this way, the water collecting surface W3 on the inclined portion 10a side can be made lower than the water collecting surface on the steeply inclined portion 10b side by the guide portion 48, and therefore the water collecting surface W3 can be suppressed from rising and spreading on the inclined portion 10 a.

Next, a toilet apparatus according to embodiment 2 of the present invention will be described with reference to fig. 19 and 20. The toilet apparatus according to the present embodiment is different from the above-described embodiment 1 in that it is a toilet apparatus to be installed in a toilet. Only the differences between embodiment 2 of the present invention and embodiment 1 will be described, and the same reference numerals are assigned to the same parts and the description thereof will be omitted.

As shown in fig. 19, a toilet device 101 (toilet device) according to embodiment 2 is a flush toilet device installed in a toilet of a building. The toilet apparatus 101 according to embodiment 2 of the present invention is a water-saving flush toilet that is washed with 3.8 liters to 6 liters of wash water, for example. Since the toilet flushing device 101 discharges the crushed dirt, the dirt can be discharged with a relatively small amount of washing water.

As shown in fig. 20, the toilet flushing device 101 includes: a ceramic toilet body 102; and a water supply unit 4 for supplying washing water to the toilet main body 102. The water supply unit 4 is connected to a water supply pipe 108 on the building side. The water supply unit 4 is provided at the rear upper portion of the toilet main unit 102, and supplies wash water to the bowl portion 110 through a water discharge port 110c formed in the bowl portion 110. The water supply unit 4 may be a tank type in which washing water is supplied from a storage tank. The water supply pipe 108 is formed of a pipe attached to a building.

The toilet main body 102 includes: a bowl 110 provided on the front side of the toilet main body 102 and receiving dirt; a drain trap line 12; and a water accumulating part 114 formed below the tub part 110. The bowl portion 110 and the water reservoir portion 114 are formed of ceramic. The toilet device 101 is a mounting type device in which the lower portion of the outer periphery of the bowl portion 110 is fixed to the floor surface F. The toilet main body 102 may be made of resin, ceramic, or resin alone, in addition to ceramics.

The drain trap line 12 is connected to a drain 116 on the building side. The crushed dirt is discharged from the drain elbow pipe 12 through the drain pipe 116. The drain pipe 116 is formed of a pipe attached to a building. Since the toilet flushing device 101 discharges the crushed waste, it can be transported without clogging the waste even when the diameter of the drain pipe 116 and the drain pipe of the downstream building is relatively small. Further, even when the amount of washing water is reduced due to a demand for water saving, the waste can be transported without being blocked in the drain pipe 116 or the like.

The water accumulation portion 114 of the toilet flushing device 101 according to embodiment 2 is formed of ceramic, and has the same configuration as the water accumulation portion 14 in embodiment 1 except for this point, and therefore, the description thereof is omitted.

The operation of the toilet apparatus according to embodiment 2 is also the same as that of the portable toilet apparatus 1 according to embodiment 1, and therefore, the description thereof is omitted.

Next, the operation of the toilet flushing device 101 according to embodiment 2 of the present invention will be described.

According to the toilet device 101 of embodiment 2, since the water accumulation portion 114 of the toilet device 101 includes the 1 st swirling flow generating portion 40 that generates the 1 st swirling flow F1 for pulverizing the dirt in the vicinity of the rotating body 26 by the rotation of the rotating body 26, the dirt such as the solid dirt existing in the vicinity of the rotating body 26 can be pulverized by the 1 st swirling flow F1. The water accumulation unit 114 is configured to include a 2 nd swirling flow generating unit 42 that generates a 2 nd swirling flow F2 having a flow velocity slower than that of the 1 st swirling flow F1 on the water accumulation surface W3 so as to move the dirt on the water accumulation surface W3 side toward the 1 st swirling flow generating unit 40. Accordingly, the floating dirt and toilet paper floating on the water surface W3 are moved by the 2 nd swirling flow F2 to be drawn into the 1 st swirling flow generating unit 40, and can be pulverized by the 1 st swirling flow F1. In this way, not only dirt near the rotating body but also dirt floating on the water surface and toilet paper can be crushed. Further, since the 1 st swirling flow F1 having a high flow velocity is generated in the vicinity of the rotating body 26, the 1 st swirling flow F1 can be suppressed from disturbing the water surface W3 when the dirt is crushed. Further, although the 2 nd swirling flow F2 is formed on the water surface W3, since the flow speed is slower than the 1 st swirling flow F1, the occurrence of disturbance of the water surface W3 can be suppressed. Therefore, even when a strong water flow for crushing various kinds of dirt such as solid dirt, floating dirt, and toilet paper is formed in the water accumulating portion 114 at the time of crushing the dirt, it is possible to suppress the dirt from splashing from the water accumulating surface W3 to the outside of the bowl portion 110, to suppress the dirt from splashing from the water accumulating surface W3 to the inner surface of the bowl portion 110 above the water accumulating portion 114, or to suppress the dirt from adhering to the inner surface of the bowl portion 110 above the water accumulating portion 114 due to the water level rising caused by the disturbance of the water accumulating surface W3.

Claims (9)

1. A toilet flushing device, which crushes dirt and discharges the dirt,

comprising: a bowl portion having a bowl-shaped dirt receiving surface opened upward;

the drainage pipeline is communicated with the basin part;

a water reservoir portion that stores accumulated water on an upstream side of the drain line so as to form a water accumulation surface below the bowl portion;

a water supply unit for supplying washing water to the tub unit;

and a rotating body disposed in the accumulated water stored in the water accumulating unit and generating a swirling flow in the water accumulating unit,

the water accumulation unit includes: a 1 st swirling flow generating unit provided with the rotating body and generating a 1 st swirling flow by rotation of the rotating body;

and a 2 nd swirling flow generating unit that generates a 2 nd swirling flow, which is a swirling flow having a flow velocity slower than that of the 1 st swirling flow, on the water collecting surface,

the 1 st swirling flow generating part generates a 1 st swirling flow, and the 1 st swirling flow pulverizes dirt,

the 2 nd swirling flow generating part generates the 2 nd swirling flow, and the 2 nd swirling flow moves the dirt on the water collecting surface side in the water collecting part to the 1 st swirling flow generating part,

the toilet flushing device is characterized in that,

the rotating body is provided at a position not overlapping the water collecting surface below the bowl portion in a plan view, the 1 st swirling flow generating portion and the 2 nd swirling flow generating portion are formed in a horizontal direction in the plan view, and the 1 st swirling flow and the 2 nd swirling flow are formed as swirling flows swirling in the horizontal direction in the plan view,

the water storage unit is provided with only one of the rotating bodies, the 1 st swirling flow generated by the rotating body induces the 2 nd swirling flow in the 2 nd swirling flow generating unit,

a flow dividing section for dividing a part of the 1 st swirling flow to the 2 nd swirling flow generating section side is provided between the 1 st swirling flow generating section and the 2 nd swirling flow generating section of the water storage section.

2. The toilet flushing device according to claim 1, wherein the rotation axis of the rotating body extends in a vertical direction.

3. The toilet flushing device according to claim 1 or 2, wherein the 1 st swirling flow generating portion and the 2 nd swirling flow generating portion are provided such that the 2 nd swirling flow swirls in a direction opposite to the 1 st swirling flow.

4. The toilet flushing device according to claim 1, wherein the 1 st swirling flow generating portion is formed such that at least a part of an inner wall of the 1 st swirling flow generating portion is a wall surface along an imaginary circle centered on a rotation axis of the rotating body in a plan view.

5. The toilet flushing device according to claim 1, wherein the 2 nd swirling flow generating portion is formed such that a wall surface on an opposite side of the 1 st swirling flow generating portion in a plan view has an arc shape.

6. The toilet flushing device according to claim 1, wherein a guide portion that guides the flow of water flowing from the flow dividing portion to the 2 nd swirling flow generating portion side along a wall surface is provided in the water storage portion on an inner wall surface closer to the 2 nd swirling flow generating portion side than the flow dividing portion in a horizontal cross section.

7. The toilet flushing device according to claim 1, wherein the rotating body is disposed above the 1 st swirling flow generating portion.

8. The toilet flushing device according to claim 1, wherein the 2 nd swirling flow generating portion has a guide portion that guides the water flow on the outer peripheral side of the 2 nd swirling flow toward the center side.

9. The toilet flushing device of claim 8,

the wall surface of the bowl portion surrounding the ponding surface includes: an inclined portion where the inclination occurs; and a steeply inclined portion inclined more than the inclined portion,

the guide portion is formed such that a horizontal radius of curvature of the wall surface gradually decreases, and a turning center of the 2 nd swirling flow guided by the guide portion is eccentric toward the inclined portion side.

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