JP2017014694A - Water closet device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a water closet device for preventing fibrous foreign matters from flowing into a force feed part to block a flow path.SOLUTION: A non-stationary type water closet device 1 according to this invention includes a toilet bowl body 2, water supply means 24 for supplying washing water, a pulverization part 34 for pulverizing sewerage, a force feed part 36 for forcibly feeding the sewerage and the washing water, and a passage opening 48b for allowing the sewerage pulverized into predetermined sizes or smaller by the pulverization part to only pass therethrough to be delivered to the force feed part. The pulverization part is of a water flow decomposition type using a water flow for decomposing the sewerage. The force feed part includes an inflow port 58 formed in the center, an outflow port 60 formed in the outer periphery, two impellers 62, 64 to be rotated in the force feed part, two radial flow paths 66, 68 communicated with the inflow port and extending to the outer periphery, and peripheral flow paths 70, 72 extending along the outer peripheries of the impellers in the peripheral directions and communicated with the outflow port. The two radial flow paths are formed by a single flow path P extending almost straight as a whole.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a flush toilet apparatus, and more particularly to a non-stationary flush toilet apparatus.

  Patent Document 1 proposes a non-stationary flush toilet device (pressure-feeding toilet device) that is disposed on the bedside of a user's room and used as a nursing toilet. In this flush toilet device, the filth is pulverized by stirring the water flow in the pulverizing section, and the pulverized filth is pumped by the pumping section and drained to the outside.

  In this conventional flush toilet device, even if foreign matter other than filth and toilet paper (foreign matter that cannot be crushed) is accidentally washed away, the foreign matter stays in the water storage tank and the drive means such as an electric motor locks. Therefore, the user can continue to use the toilet device. In a flush toilet apparatus used as a nursing toilet disposed on the bedside in a living room, this measure against foreign matter is an extremely important issue that affects the establishment of a commodity business.

In addition, nursing care toilets placed on the bedside are designed to discharge finely crushed filth to the outside (outdoor drainage pipes) via a thin and long drainage hose. It is preferable to employ a centrifugal pump that can achieve this process. However, this centrifugal pump needs to narrow the flow path in order to generate a high pressure. Therefore, there is a problem that the flow path is clogged when large filth or the like flows in.
For this reason, in the toilet apparatus of patent document 1, only the fine thing grind | pulverized to the magnitude | size below predetermined in a grinding | pulverization part flows in into a pumping part, and the flow path clogging of a pumping part is prevented.

Patent No. 5495191

  As mentioned above, foreign substances other than filth and toilet paper may be accidentally washed away in the flush toilet apparatus, but especially foreign substances such as “box tissue” and “flowing wiping wipes” can enter the crushing section. Thus, foreign matter that can only be pulverized to a fibrous state (foreign matter that can be crushed only halfway) has recently been used. This fibrous foreign matter flows into the pumping part and is easily caught in the narrow flow path of the pumping part, and this trapped fibrous foreign substance grows in large amounts by tangling new fibrous foreign substances one after another. There was a new problem of closing the narrow flow path in the pumping section.

  Accordingly, the present invention has been made to solve the above-described problems, and uses a centrifugal pumping unit (such as a centrifugal pump) that can realize a high head, and pulverizes only to a fibrous state in the pulverizing unit. It is an object of the present invention to provide a flush toilet apparatus capable of preventing the fibrous foreign matter from flowing into the pumping portion and blocking the flow path even when a foreign matter that cannot be flowed.

In order to achieve the above-mentioned object, the present invention is a non-stationary flush toilet apparatus, a toilet body, water supply means for supplying cleaning water to the toilet body, and discharged from the toilet body together with cleaning water. A pulverizing section for pulverizing the filth, a pressure feeding section for pumping the filth crushed by the pulverizing apparatus and the washing water, and a flexible drain for discharging the filth and washing water pumped by the pumping section to the outside. A pipe, and a passage regulating unit that is provided between the crushing unit and the pressure feeding unit, and passes only the filth crushed to a predetermined size or less in the crushing unit and sends the waste to the pressure feeding unit. It is a water splitting type pulverizing section that stores cleaning water and decomposes filth by a water flow generated by stirring the stored cleaning water, and the pumping section is formed with an inlet formed at the center of the pumping section. The outlet formed on the outer periphery of the pumping section, and the pressure Two impellers that rotate within the section, two radial flow paths that communicate with the inlet and extend toward the outer periphery, and a circumferential flow path that extends circumferentially around the impeller and communicates with the outlet. It is a centrifugal pumping unit, and the two radial flow paths are formed by a single flow path extending substantially linearly as a whole.
In the present invention configured as described above, since the centrifugal pumping section is provided, it is possible to discharge high-lift filth using a thin and long flexible drain pipe. In addition, since a passage restricting section is provided between the pulverizing section and the pressure feeding section to pass only the filth crushed to a predetermined size or less in the pulverizing section and send it to the pressure feeding section, large uncrushed filth is present in the pressure feeding section. It is possible to prevent clogging of the pumping part due to inflow. Furthermore, when a hydrolytic pulverization unit is provided, if foreign matter such as `` box tissue '' or `` flowing wiping cloth '' is flowed into the toilet body, it is crushed by the pulverization unit and becomes fibrous, and flows into the pumping unit, This fibrous foreign matter is caught and entangled in the pumping part and grows large, causing a problem of clogging the pumping part. However, according to the present invention, two radial flow paths are provided in the centrifugal pumping unit, and further, these two radial flow paths are formed by a single flow path that extends substantially linearly as a whole. Therefore, even when a fibrous foreign material is flowed, it can be discharged without catching the fibrous foreign material at the pumping unit. As a result, according to the present invention, it is possible to prevent the fibrous foreign matter from growing greatly in the pumping unit and clogging the pumping unit.

In the present invention, preferably, the pumping unit has a vortex generation prevention wall for preventing generation of a vortex formed in a region where the radial flow path of the outer peripheral portion of the impeller does not exist.
When the radial flow path of the pumping section is formed by a single flow path extending substantially linearly as a whole, a negative pressure section is generated in a region where the radial flow path of the outer peripheral portion of the impeller does not exist, Soil and washing water pushed out into the circumferential flow path by centrifugal force flows into the negative pressure part and stays in this negative pressure part as a vortex for a long time. The part will be blocked. However, even in such a case, according to the present invention, since the eddy current generation prevention wall is provided in the region where the radial flow path of the outer peripheral portion of the impeller does not exist, the fibrous foreign matters generated by the generation of the vortex flow are It is possible to prevent the tangled flow from becoming large and prevent clogging of the flow path of the pumping section, and further to prevent the pumping performance from being lowered due to the generation of vortex.

In the present invention, preferably, the vortex generation preventing wall of the pumping portion is provided in almost the entire region of the outer peripheral portion of the impeller where no radial flow path exists.
According to the present invention configured as described above, the eddy current generation preventing wall is provided in almost the entire area of the outer peripheral portion of the impeller where the radial flow path does not exist, and thus there is a possibility that eddy current is generated. The region is almost eliminated, and the generation of vortex can be prevented more reliably. As a result, it is possible to prevent the fibrous foreign matter from becoming tangled and growing greatly to prevent clogging of the flow path of the pumping section, and further to prevent a decrease in pumping performance due to the generation of vortex flow.

In the present invention, preferably, the radial flow path of the pumping portion is formed such that the flow path width gradually increases at the end in the radially outward direction.
In the present invention configured as described above, the radial flow path of the pumping section is formed so that the flow path width gradually increases at the end in the radial direction. Since it is possible to prevent the fibrous foreign matter from being caught at the end portion in the direction, it is possible to prevent the fibrous foreign matter from being entangled with the caught fibrous foreign matter one after another and growing greatly. Thereby, clogging of the flow path of the pumping unit can be prevented.

  According to the flush toilet apparatus of the present invention, when a foreign material that can be pulverized only to a fibrous state is flowed in a pulverization unit using a centrifugal pumping unit (such as a centrifugal pump) capable of realizing a high head. Even if it exists, this fibrous foreign material can prevent blocking the flow path of a pumping part.

1 is an overall perspective view showing a flush toilet apparatus according to an embodiment of the present invention. It is a whole lineblock diagram showing the flush toilet device by the embodiment of the present invention. It is sectional drawing which shows the grinding | pulverization pumping apparatus of the flush toilet apparatus by embodiment of this invention. It is an expanded sectional view which shows the pumping part of the grinding | pulverization pumping apparatus of FIG. It is the external view which looked at the pumping chamber of the pumping part of the grinding | pulverization pumping apparatus of FIG. 4 from diagonally downward in the state in which the lower cover was removed. It is the external view which looked at the pumping chamber of the pumping part of the grinding | pulverization pumping apparatus of FIG. 4 from the bottom with the lower cover removed. It is the external view which took out only the impeller of the pumping part of FIG. 5, and was seen from diagonally downward. It is the external view which took out only the impeller of the pumping part of FIG. 5, and was seen from right below. It is the perspective view which shows the pump chamber and impeller which looked at the grinding | pulverization pressure feeding apparatus of the conventional flush toilet apparatus from diagonally downward. It is a figure for demonstrating the subject in the grinding | pulverization pumping apparatus of the conventional flush toilet apparatus. It is a bottom view which shows the pump chamber and impeller which show the development background which leads to this invention. It is sectional drawing which shows the operation | movement in the crushing pumping part of the flush toilet apparatus by embodiment of this invention. It is sectional drawing which shows the operation | movement in the crushing pumping part of the flush toilet apparatus by embodiment of this invention. It is sectional drawing which shows the operation | movement in the crushing pumping part of the flush toilet apparatus by embodiment of this invention.

  Next, a flush toilet apparatus according to an embodiment of the present invention will be described with reference to the accompanying drawings. First, the overall structure of the flush toilet apparatus according to the embodiment of the present invention will be described with reference to FIGS. 1 and 2. FIG. 1 is an overall perspective view showing a flush toilet apparatus according to an embodiment of the present invention, and FIG. 2 is an overall configuration diagram showing a flush toilet apparatus according to an embodiment of the present invention.

  As shown in FIG. 1, the flush toilet apparatus 1 according to the present embodiment is a non-stationary flush toilet apparatus that can be used as a care toilet disposed on the bedside. The flush toilet apparatus 1 includes a toilet body 2, a pulverizing and pumping device 4 that pulverizes and pumps filth and washing water discharged from the toilet body 2, and flexibility for supplying cleaning water to the toilet body 2. Indoor water supply pipe 6, and an indoor drain pipe 8 capable of discharging filth and washing water from the crushing and pumping device 4.

  Further, since the flush toilet apparatus 1 is non-stationary and movable, a plurality of legs 12 are attached to the lower surface of the toilet body 2, and the toilet body 2 is supported on the floor 10 by the legs 12. It is supposed to be. In addition, a flip-up armrest 14 is attached to the toilet body 2 to support the user's standing and to be able to secure the balance of the sitting state.

  As shown in FIG. 2, the flush toilet apparatus 1 is disposed on the floor 10 of the indoor 16 a of the building 16. The indoor water supply pipe 6 is connected to an outdoor water supply pipe 18 disposed on the outdoor 16b, and the indoor drain pipe 8 is connected to an outdoor drain pipe 20 disposed on the outdoor 16b. In this way, the flush toilet 1 according to the present embodiment can discharge the filth discharged to the toilet body 1 to the outdoors.

  As shown in FIG. 2, the toilet main body 2 of the flush toilet apparatus 1 includes a bowl portion 22 for receiving filth provided on the front side of the toilet main body 2, and a bowl portion 22 provided on the rear upper portion of the bowl portion 22. A water supply device 24 for supplying water and a drain trap pipe 26 for discharging the filth with the washing water so as to communicate with the bottom of the bowl portion 22 are provided. The water supply device 24 includes a water supply valve 28 connected to the downstream end of the indoor water supply pipe 6 and a water conduit 30 for supplying cleaning water from the water supply valve 28 to the bowl portion 22. In addition, a discharge port 32 is formed at the downstream end of the drain trap pipe 26 for discharging filth and washing water to the crushing and pressure feeding device 4.

Here, the toilet body 2 of the flush toilet apparatus 1 of the present embodiment described above is a flush toilet that discharges filth due to a drop in the wash water in the bowl portion 12. However, the toilet main body 2 is not limited to this type, and can be applied to a siphon type or siphon jet type toilet, or a flap valve type toilet provided with a flap valve at the outlet 32 of the toilet main body 2. .
The water supply device 24 may be of a tank type that supplies cleaning water from a water storage tank.

  As shown in FIG. 2, the crushing and pressure feeding device 4 of the flush toilet apparatus 1 includes a crushing unit 34 that crushes filth and a pressure feeding unit 36 that crushes the crushed filth to the indoor drain pipe 8. The pulverizing unit 34 and the pressure feeding unit 36 are provided with a dual-purpose electric motor 38 for driving them. Here, the electric motor 38 is a DC brushless motor, and variable speed control is possible.

  Further, the flush toilet device 1 includes an operation unit 40 operated by the user, a notification unit 42 for notifying the user of status information of the flush toilet device 1, and an operation of the operation unit 40 by the user. A control unit 44 is provided for controlling the water supply device 24 and the crushing and pressure feeding device 4 and for notifying the notification unit 42 of the state information of the flush toilet device 1.

  The operation unit 40 is provided with an operation switch or the like, and the user can operate the start of the cleaning operation by the operation switch or the like. Further, when an operation switch or the like of the operation unit 40 is operated, the operation command is transmitted to the control unit 44, and the control unit 44 sends a water supply command to the water supply device 24 based on the command, and the water supply device 24 sends the bowl to the bowl. The unit 22 is supplied with water for a predetermined time, and the toilet body 4 is washed. Further, the control unit 30 sends an operation signal to the pulverization pumping device 4 so as to operate the pulverization pumping device 4. Further, the control unit 44 is configured to send the state information of the flush toilet apparatus 1 to the notification unit 42. In addition, the alerting | reporting part 42 is provided with an LED lamp and / or a small speaker etc., and can alert | report state information to a user visually and / or with an audio | voice. Furthermore, the notification unit 42 can notify the user of an abnormality by turning on or blinking the LED lamp according to a command from the control unit 44.

  Next, the pulverization and pressure feeding device 4 of the flush toilet device 1 will be described with reference to FIGS. FIG. 3 is a cross-sectional view showing a crushing and pumping device of a flush toilet apparatus according to an embodiment of the present invention, FIG. 4 is an enlarged cross-sectional view showing a pumping unit of the crushing and feeding device, and FIG. 5 is a pumping unit of the crushing and feeding device. FIG. 6 is an external view of the pumping chamber viewed from obliquely below with the lower cover removed, and FIG. 6 is an external view of the pumping chamber of the pumping unit of the crushing pumping device viewed from directly below with the lower cover removed. FIG. 7 is an external view of only the impeller of the pumping unit taken out and viewed from obliquely below, and FIG. 8 is an external view of the impeller of the pumping unit taken out and viewed from directly below.

As shown in FIG. 3, the crushing and pressure feeding device 4 is connected to the discharge port 32 of the drain trap pipe 26 of the toilet body 2 described above, and the filth flows in along with the washing water.
The crushing and pressure feeding device 4 includes a storage tank 46, and a crushing unit 34 is provided inside the storage tank 46. The crushing part 34 has a crushing chamber 48, and this crushing chamber 48 is formed inside the peripheral wall 48a. The peripheral wall 48a of the crushing chamber 48 communicates with the discharge port 32 of the drain trap pipe 26 described above on one side thereof. A disk 50 for stirring the filth in the crushing chamber 48 is provided below the crushing chamber 48. The disk 50 is directly connected to a rotating shaft 52 attached to the electric motor 38 and is rotatable. Furthermore, a large number of protrusions 50a are formed on the upper surface of the disk 50, and dirt is caught on these protrusions 50a and is easily stirred.

  Specifically, the arrows in FIG. 3 indicate the flow state of filth and washing water. As is clear from this arrow, the filth that descends on the disk 50 is rotated along with the washing water by the rotation of the disk 50. It moves to the outer peripheral side, collides with the peripheral wall 48a, then rises along the peripheral wall 48a, and further descends on the disk 50 while moving to the inner peripheral side. In this way, the filth is stirred and pulverized while swirling in the vertical direction.

  As shown in FIG. 3, a large number of passage openings 48b of a predetermined size are formed in the vicinity of the outer peripheral side of the disk 50 of the peripheral wall 48a. By these passage openings 48b, only the filth crushed to a predetermined size or less can pass through the peripheral wall 48a, while the passage of the filth larger than the predetermined size is restricted.

  Further, a pressure feeding unit 36 is provided below the crushing chamber 48 of the crushing unit 34 in the storage tank 46. In addition, a flow path 54 is formed between the outer peripheral side of the passage opening 48 b of the peripheral wall 48 a in the storage tank 46 and the pumping unit 36 for moving crushed filth and washing water.

  Next, the pumping unit 36 of the pulverizing pump 4 will be described in detail with reference to FIGS. The pumping unit 36 includes a pump chamber 56, a lower cover 57 is attached to the lower portion of the pump chamber 56, and an inflow port 58 through which filth and washing water flows is formed at the center of the lower cover 57. Yes. On the outer peripheral side of the pump chamber 56, an outlet 60 through which filth and washing water flows out is formed. Two impellers 62 and 64 are provided in the pump chamber 56, and these two impellers 62 and 64 are coupled to the lower end of the rotating shaft 52 via the mounting plate 63 and are rotated by the electric motor 38. It is like that.

  The two impellers 62 and 64 have the same shape, are arranged point-symmetrically in a plan view, and have a radius from the central portion around the inflow port 58 by the inner wall surfaces 62a and 64a of the impellers 62 and 64, respectively. Two radial flow paths 66 and 68 extending outward in the direction are formed. Further, circumferential flow paths 70 and 72 extending in the circumferential direction are formed between the outer peripheral side wall surfaces 62b and 64b of the impellers 62 and 64 and the inner peripheral wall 56a of the pump chamber 56, respectively. 70 and 72 have their upstream ends communicating with the radial flow paths 66 and 68, respectively, and their downstream ends communicating with the outlet 60 of the pump chamber 56.

Here, the two radial flow paths 66 and 68 formed by the two impellers 62 and 64 of the pressure feeding section 36 are formed as a single flow path (indicated by hatching in FIG. 6) extending substantially linearly as a whole. A flow path P) is formed.
In addition, the outer radial end portions 66a and 68a of the two radial flow paths 66 and 68 are formed so that the flow path width W gradually increases. Specifically, as shown in FIG. 8, the flow path width W is determined by the length of a straight line orthogonal to a straight line L indicating a substantially central position in plan view of the two radial flow paths 66 and 68. The

  Further, in the impellers 62 and 64, the lower ends of the inner wall surfaces 62a and 64a and the lower ends of the outer peripheral wall surfaces 62b and 64b are closed by connecting walls 62c and 64c. Due to the presence of the inner wall surfaces 62a and 64a, the outer peripheral wall surfaces 62b and 64b, and the connecting walls 62c and 64c of the impellers 62 and 64, these function as vortex generation prevention walls, and the radial flow path 66 of the pump chamber 56 , 68 in a region other than the space where the negative pressure is generated, there is no region in which a negative pressure is generated, so that no vortex is generated.

Next, the development process of the present invention by the present inventors will be described with reference to FIGS.
First, as shown in FIG. 9, the design concept of the conventional flush toilet apparatus is such that only a small pulverized material flows into the pumping chamber (pump chamber) of the pumping unit. The number of sheets (8 channels) was increased.

  In such a conventional flush toilet apparatus, when foreign matter such as “box tissue” or “wiping wiping wipe” is flowed, these foreign matters are fibrous in the pulverization part as shown in FIG. Since it is pulverized only to the state, the fibrous foreign substance F (see FIGS. 10 and 11A) that has flowed into the pumping unit is caught in the narrow flow path (the tip of the impeller 80, etc.) of the pumping unit. A problem arises that the fibrous foreign matters F grow one after another and become entangled and grow large, and block the narrow flow path in the pumping section (see FIG. 11A).

  In response to this problem, the present inventors first reduced the number of impellers so that no fiber is caught on the tip of the impeller. Specifically, as shown in FIG. 11 (b), two impellers (impellers 62 and 64) are provided, and the two impellers 62 and 64 have the same shape and are formed in the central portion. They were arranged point-symmetrically in plan view around the entrance. Here, the two radial flow paths formed by these two impellers 62 and 64 are substantially linear flow paths as a whole. As a result, the fibrous foreign matter F can be reliably prevented from being caught at the tip of the impeller 80 or the like.

  Note that, by reducing the number of impellers from 8 to 2, for example, the flush toilet apparatus according to the present invention has a lower pumping performance (pump performance) than the conventional toilet apparatus, but the present inventors Increases the height of the pumping chamber and the total area of the impeller surface, and does not generate eddy currents (causes pressure loss), allowing smooth drainage, resulting in the same level of pumping performance (pump performance) as a conventional toilet device. Was able to secure.

  However, as shown in FIG. 11B, by reducing the number of impellers, a negative pressure part NP is generated on the back side of the impellers 62 and 64 in the pumping chamber (pump chamber), and this negative pressure part NP. As a result, the sewage pushed outward in the radial direction by the centrifugal force flows back in the radial direction, where vortex V is generated and the pumping performance (pump performance) is lowered, and this vortex V is transferred to the pumping chamber (pump chamber). As a result of staying for a long time, the fibrous foreign substance F grows entangled and grows, resulting in a new problem of blocking the flow path of the pumping chamber.

  Here, the new problem generated by the generation of the vortex V is a problem generated by reducing the number of impellers, and does not occur in the conventional toilet device having a large number of impellers.

  In response to the new problem that the vortex V is generated, the present inventors, as shown in FIG. 11 (c), have a space other than the minimum flow path necessary for rotating the impeller and guiding the sewage to the drain outlet. By filling the sewage, it was possible to prevent the sewage from flowing backward (vortex flow).

  As described above, the present inventors have reduced the number of impellers so that fibrous foreign matter that has flowed into the pumping chamber (pump chamber) can be discharged from the drain port without growing, and the fibers It is possible to prevent the flow path of the pumping chamber (pump chamber) from being clogged by the shaped foreign material, and furthermore, by “filling the space other than the flow path as a minimum requirement”, the vortex flow due to the generation of the negative pressure section can be prevented. Generation | occurrence | production was prevented and it became possible to prevent more reliably that a fibrous foreign material entangles and grows large.

  Next, the operation (action) of the flush toilet apparatus according to the above-described embodiment of the present invention will be described with reference to FIGS. 2 and 12 to 14. 12 to 14 are cross-sectional views showing the operation of the crushing and pumping unit of the flush toilet apparatus according to the embodiment of the present invention.

  First, the cleaning operation is started when the user operates an operation switch or the like of the operation unit 40 in order to clean the toilet body 2 with cleaning water. When an operation switch or the like of the operation unit 40 is operated, the operation command is transmitted to the control unit 44, and the control unit 44 sends a water supply command to the water supply device 24 based on the command, and the bowl unit 22 is supplied from the water supply device 24. Water is supplied for a predetermined time, and the toilet body 4 is washed. Further, an operation command is sent from the control unit 44 to the electric motor 38, and the rotation operation of the electric motor 38 is started.

  The filth and the washing water are discharged from the drain trap pipe 26 due to the drop of the washing water, flow into the crushing chamber 48 of the crushing and pressure feeding device 4 through the discharge port 32, and descend onto the disk 50. In the crushing chamber 48, the disk 50 has already been rotated, and the filth that has descended onto the disk 50 moves to the outer peripheral side by the rotation of the disk 50 together with the washing water, collides with the peripheral wall 48a, and then enters the peripheral wall 48a. Ascending, and further descending while moving to the inner peripheral side, thus stirring and pulverizing while turning in the vertical direction (see FIG. 3).

  Next, as shown in FIGS. 12 to 14, a large number of passage openings 48b of a predetermined size are formed in the vicinity of the outer peripheral side of the disk 50 of the peripheral wall 48a. Of these, those smaller than the size of the passage opening 48b are discharged from the passage opening 48b to the flow path 54 on the downstream side. Note that the filth larger than the size of the passage opening 48b is continuously stirred and pulverized in the pulverization chamber 48 until the size becomes a predetermined size or less.

  The crushed filth flows into the pump chamber 56 together with the washing water from the flow path 54 and from the inlet 58 formed at the center of the lower surface of the pump chamber 56 of the pumping section 36. The filth and the cleaning water that flowed into the pump chamber 56 flow into two radial flow paths 66 and 68 formed by the two impellers 62 and 64, respectively. Due to the centrifugal force generated by 64, it flows in the radially outward direction. Further, the filth and the washing water pushed out to the outer peripheral side of the pump chamber 56 by the centrifugal force flow along the two circumferential flow paths 70 and 72 along the circumferential direction.

  Thereafter, the filth and washing water in the pump chamber 56 are discharged from the outlet 60. The filth and the washing water discharged by the pumping unit 36 pass through the indoor drain pipe 8 and are discharged to the outdoor drain pipe 20, and the filth discharging operation is completed.

  Next, the effect by the flush toilet apparatus 1 by this embodiment mentioned above is demonstrated. First, in the flush toilet apparatus 1 according to the present embodiment, since the centrifugal pumping unit 36 is provided, it is possible to discharge filth at a high head using a thin and long flexible indoor drain pipe 8. Further, since the passage opening 48b for allowing only the filth crushed to a predetermined size or less by the pulverizing portion 34 to pass through is formed in the peripheral wall 48a of the pulverizing chamber 48, large uncrushed filth flows into the pressure feeding portion 36 and the pressure feeding portion. It is possible to prevent the 36 pump chambers 56 from being clogged. Further, in the case where the water-flow decomposing pulverization unit 36 is provided, when foreign matter such as “box tissue” or “wiping wiping wipe” is flowed to the toilet body 2, the pulverization unit 34 pulverizes the fiber body into a fibrous form. This fibrous foreign matter is caught in the pump chamber 56 of the pumping section 36 and entangled and grows large, causing a problem of clogging the pump chamber 56. However, according to the flush toilet apparatus 1 according to the present embodiment, the pump chamber 56 is provided with the two radial flow paths 66 and 68, and the two radial flow paths 66 and 68 are substantially linear as a whole. In the case where a fibrous foreign matter is flowed, the fibrous foreign matter can be discharged without being caught in the pump chamber 56 of the pumping unit 36. As a result, according to the flush toilet apparatus 1 according to the present embodiment, it is possible to prevent the fibrous foreign matter from growing greatly in the pump chamber 56 of the pumping unit 36 and clogging the pump chamber 56.

  Next, when the two radial flow paths 66 and 68 of the pumping portion 36 are formed by a single flow path P that extends substantially linearly as a whole, the radial flow path 66 on the outer peripheral portion of the impeller 62.64. , 68 is generated in a region where the negative pressure part NP is generated, and the filth and the washing water pushed into the circumferential flow path by the centrifugal force flow into the negative pressure part NP, and the negative pressure part is vortexed for a long time. Since it stays, fibrous foreign matters are entangled and grow large, which closes the pumping unit 36. However, even in such a case, according to the flush toilet apparatus 1 according to the present embodiment, the eddy current generation preventing wall is provided in the area where the radial flow paths 66 and 68 of the outer peripheral portions of the impellers 62 and 64 do not exist. Therefore, the fibrous foreign matter generated by the generation of the vortex is prevented from being entangled and growing greatly to prevent clogging of the flow path of the pump chamber 56 of the pumping unit 36, and the pumping performance is also reduced due to the generation of the vortex. Can be prevented.

  Further, according to the flush toilet apparatus 1 according to the present embodiment, the eddy current generation preventing wall is provided in almost the entire region of the outer peripheral portion of the impellers 62, 64 where the radial flow paths 66, 68 are not present. Thus, there is almost no region where eddy currents can occur, and it is possible to prevent the vortexes from occurring more reliably. As a result, it is possible to prevent the fibrous foreign matter from becoming tangled and growing greatly, thereby preventing the clogging of the flow path of the pump chamber 56 of the pumping unit 36, and further preventing a decrease in pumping performance due to the generation of vortex flow.

  Furthermore, according to the flush toilet apparatus 1 according to the present embodiment, the radial flow paths 66 and 68 of the pumping section 36 are formed so that the flow path width gradually increases at the end in the radial direction. Since it is possible to prevent the fibrous foreign matter from being caught at the radially outer ends of the radial flow paths 66 and 68, the fibrous foreign matter is entangled with the caught fibrous foreign matter one after another and is prevented from growing greatly. it can. Thereby, clogging of the flow path of the pumping unit can be prevented.

DESCRIPTION OF SYMBOLS 1 Flush toilet device 2 Toilet body 4 Crushing pressure feeding device 6 Indoor water supply pipe 8 Indoor drainage pipe 24 Water supply device 26 Drain trap pipe 32 Discharge port 34 Crushing part 36 Pumping part 38 Electric motor 48 Crushing chamber 48a Circumferential wall 48b Passing opening 50 Disc 54 channel 56 pump chamber 58 inlet 60 outlet 62, 64 impeller 62a, 64a inner wall surface 62b, 64b outer side wall surface 62c, 62c connecting wall 66, 68 radial channel 66a, 68a radial outer end 70, 72 Circumferential flow path

Claims (4)

A non-stationary flush toilet device,
The toilet body,
Water supply means for supplying cleaning water to the toilet body,
A pulverizing section for pulverizing the waste discharged together with the washing water from the toilet body,
A pumping unit for pumping the waste and washing water crushed by the pulverizer;
A flexible drain pipe for discharging the filth and washing water pumped by the pumping section to the outside;
A passage regulating unit that is provided between the pulverization unit and the pressure feeding unit, and passes only the filth pulverized to a predetermined size or less by the pulverization unit and sends it to the pressure feeding unit;
The pulverization unit is a water flow decomposing pulverization unit that stores cleaning water and decomposes filth by a water flow generated by stirring the stored cleaning water.
The pumping section includes an inlet formed at the center of the pumping section, an outlet formed at the outer periphery of the pumping section, two impellers rotating in the pumping section, and communicated with the inlet toward the outer periphery. A centrifugal pumping section comprising two radial flow paths extending in a circumferential direction and a circumferential flow path extending in the circumferential direction around the impeller and communicating with an outlet.
The flush toilet apparatus, wherein the two radial flow paths are formed by a single flow path extending substantially linearly as a whole.   The flush toilet apparatus according to claim 1, wherein the pumping unit includes a vortex generation prevention wall for preventing generation of vortex flow formed in a region where the radial flow path does not exist in an outer peripheral portion of the impeller. .   The flush toilet apparatus according to claim 2, wherein the vortex generation preventing wall of the pumping portion is provided in substantially the entire area of the outer peripheral portion of the impeller where no radial flow path exists.   The flush toilet apparatus according to any one of claims 1 to 3, wherein the radial flow path of the pumping unit is formed so that a flow path width gradually increases at an end portion in a radially outward direction.

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