TWI618840B - Flush toilet device - Google Patents

Abstract

The present invention provides a flush toilet device, which can prevent fibrous foreign matter from intertwining and growing between the disc portion and the pressure conveying portion, so that the disc portion, that is, the impeller cannot rotate. The present invention is a non-fixed flush toilet device, comprising: a water flow decomposition type pulverizing unit (34) that decomposes pollutants; and a pressure conveying unit (36) that pressurizes and conveys the pulverized pollutants and washing water, The pressure conveying section (36) is a centrifugal pressure conveying section including an impeller, a radial flow path, and a circumferential flow path. The impeller is an impeller (62) disposed inside a side wall of the pressure conveying section, and includes a disc section. The protruding part and the side wall (64) of the pressurized conveying part are provided with a collision area (on the side wall where the dirt and the washing water which collide with the dirt flowing from the radial flow path to the circumferential flow path due to the centrifugal force generated by the rotation of the impeller) ( 78) and the restriction portion (70) formed between the side wall (64) and the disc portion (66) and making it difficult for dirt and washing water to flow from the collision area (78) into the gap portion (70) (80).

Description

Flush toilet device

The invention relates to a flush toilet device, in particular to a non-fixed flush toilet device.

Patent Document 1 proposes a non-fixed flush toilet device (pressurized conveyance type toilet device) used as a toilet flushing device arranged next to a bed in a living room of a user. This flush toilet device grinds dirt by agitating a water stream in a crushing unit, and the crushed dirt is conveyed by pressure by a pressure conveying unit and discharged to the outside.

In this conventional flush toilet device, even if foreign matters (foreign matter that cannot be pulverized) other than dirt or toilet paper are accidentally washed out, foreign matters will not stay in the water storage tank. Since a drive unit such as an electric motor may be locked and cannot be used, a user can continue to use the toilet device. In a flush toilet device used as a nursing toilet device arranged beside a bed in a living room, this countermeasure against foreign matter is an extremely important issue in determining whether it can be commercialized.

In addition, the nursing flushing device arranged beside the bed discharges finely pulverized dirt through an elongated drain pipe. (Outdoor drainage pipe), it is better to use a relatively small, low-cost and high-lift centrifugal pump. However, in order to generate a high pressure, the flow path of the centrifugal pump needs to be narrowed. Therefore, if a large amount of dirt flows into the flow path, the flow path is blocked.

Therefore, in the toilet device of Patent Document 1, only the fine particles that are pulverized in the pulverizing section with a size equal to or smaller than a predetermined amount are fed into the pressure conveying section to prevent the flow path of the pressure conveying section from being blocked.

[Advanced technical literature] [Patent Literature]

Patent Document 1: Japanese Patent No. 5495191

On the other hand, in order to form a relatively small-sized centrifugal pump capable of generating a relatively high pressure, the inventors of the present invention have studied the pressurized conveyance shown in FIG. 7 as a structure of a pressurized conveyance portion having a narrow and simple flow path.部 136.

However, as described above, the flush toilet device sometimes accidentally flushes out dirt and foreign materials other than toilet paper, such as "boxed tissue paper", "washable wet tissue", and "washable tissue paper" "", "Purgeable dust-removing cloth", and the like are foreign matter (foreign matter that has not been completely pulverized) that has been pulverized only to a fibrous state in the pulverizing section. Recently, such foreign matter has been used. The fibrous foreign matter is reduced until it is crushed to a fibrous state in the crushing section, and therefore flows into the pressure conveying section. This fibrous foreign matter flows into the pressurized conveying section and is easily caught in the narrow flow of the pressurized conveying section. In addition, the jammed fibrous foreign matter continuously entangles with and grows with the new fibrous foreign matter, and a new problem arises that the narrow flow path in the pressurized conveyance section is blocked after all.

In particular, as shown in FIG. 7, in order to form a centrifugal pump capable of generating a high pressure, it is known that the side wall 164 is formed by one vertical wall surface, and the pressure conveying portion 136 is arranged so that the disc portion 166 is located near the side wall 164. With the above-mentioned new problems, the following problems arise. In such a pressurized conveying portion 136, as shown by arrows a1 and a2, the centrifugal force generated by the rotation of the impeller 162 causes the collision area 178 of the radial flow path 174 to collide with the outer side wall 164 to include a fibrous shape. The dirt and washing water of the foreign matter F will flow into the gap 170 formed between the side wall 164 and the disc portion 166 from the collision area 178.

At this time, the fibrous foreign matter F flows into the gap 170 together with the washing water. As shown by arrow a3, it flows into the region B between the disc portion 166 and the pressure conveying part 136. Since the fibrous foreign matter F is in the region B, The disks 166, that is, the impeller 162 cannot rotate, and the motor is locked. In addition, dirt and washing water further flow into the region C on the outer periphery of the rotating shaft 152, and the fibrous foreign matter F entangles and grows in the area C. Therefore, the rotating shaft 152 and the disk portion 166, that is, the impeller 162 cannot be used. The rotation causes a problem that the motor is locked.

Therefore, the present invention has been made in order to solve the above problems, and an object thereof is to provide a flush toilet device using a centrifugal pressurized conveying section (centrifugal pump, etc.) capable of achieving a high lift, even when it is washed out of the crushing section. Foreign matter that can only be crushed to a fibrous state can also be used Prevent fibrous foreign matter from intertwining and growing between the disc portion and the pressurized conveying portion to prevent the disc portion, that is, the impeller from rotating.

In order to achieve the above object, the present invention is a flush toilet device, which is a non-fixed flush toilet device, which includes: a toilet body; a water supply unit for supplying washing water to the toilet body; Crushing part of discharged dirt; pressure conveying part for pressurizing conveyance of dirt and washing water pulverized by the pulverizing part; for exhausting dirt and washing water conveyed by the pressure conveying part to the outside A flexible drainage pipe; and a pass-through restricting section provided between the crushing section and the pressurized conveying section to allow the dirt pulverized in the crushing section to pass a size smaller than a predetermined value to be conveyed to the pressurizing conveying section, and The pressure conveying section is a centrifugal pressure conveying section including an impeller, an inlet, an outlet, a radial flow path, and a circumferential flow path. The impeller is arranged inside the side wall of the pressure conveying section and rotates in the pressure conveying section. The impeller includes a disc-shaped disc portion and a protruding portion provided to protrude from the disc portion. An inflow port is formed at a central portion of the pressure conveying portion, and an outflow port is formed at an outer peripheral portion of the pressure conveying portion. The flow path is formed between the protrusions and communicates with the inflow port and extends toward the outer periphery. The circumferential flow path extends in the outer direction of the impeller in the circumferential direction and communicates with the outflow port. The side wall of the pressure conveying part is provided with: The centrifugal force generated by the rotation of the dirt and the side wall where the washing water flows from the radial flow path to the circumferential flow path conflicts with the gap formed between the side wall and the disc part, and makes the dirt and cleaning It is difficult for water to flow from the collision area into the restriction portion of the gap portion.

In the present invention thus constituted, if foreign matter such as "boxed tissue paper" and "pushable wet paper towel" is flushed out of the toilet body, it will be crushed into a fibrous shape in the crushing section and flow into the pressurized conveyance. unit. The fibrous foreign matter and the washing water flowing from the inflow port into the pressurized conveying section flow from the radial flow path to the outer circumferential flow path by the centrifugal force generated by the rotation of the impeller. When dirt and washing water from a collision area in which a radial flow path collides with an outer side wall flows from the collision area into a gap formed between the side wall and the disc portion, fibrous foreign matter flows into the gap together with the washing water. The fibrous foreign matter is entangled and grows between the disc portion and the pressurized conveying portion. Therefore, the disc portion, that is, the impeller cannot rotate and the motor is locked. However, according to the flush toilet device according to this embodiment, the side wall of the pressurized conveying unit is provided with dirt that flows from the radial flow path to the circumferential flow path by the centrifugal force generated by the rotation of the impeller and collides with the collision area of the side wall. It is difficult for the washing water to flow from the collision area into the restricting part of the clearance part, so that fibrous foreign matter can be prevented from intertwining and growing between the disc part and the pressure conveying part, so that the disc part, that is, the impeller cannot rotate and the motor is locked Live problem.

In the present invention, it is preferable that the side wall of the pressurizing conveying section includes: an outer side wall having a collision area; and an inner side wall formed closer to the inner side in the radial direction than the outer side wall, and the gap portion is formed between the inner side wall and the disc portion. In between, the restricting portion extends toward the inner side in the radial direction of the pressure conveying portion and connects the outer side wall and the inner side wall.

In the present invention thus constituted, since the gap portion is formed between the inner side wall and the disc portion, it is difficult for dirt and washing water that collide with the collision area of the outer side wall to flow from the collision area in a radial direction against the centrifugal force. The inside can make it difficult to flow into the gap portion formed closer to the inside in the radial direction than the collision area.

In the present invention, it is preferred that the restricting portion is provided at a position separated from the radial flow path side of the radial flow path side of the disc portion by a predetermined distance in the height direction, and the clearance portion is provided at the radial flow path side of the disc portion. The radial flow pavement is positioned at a predetermined distance in the height direction.

In the present invention thus constituted, the restricting portion is provided at a position where the flow of the dirt and washing water flowing from the radial flow surface to the circumferential flow path and the collision area is separated from the predetermined distance in the height direction. Further, the clearance portion provided on the inner side wall to which the restricting portion is connected is also provided at a position where the flow of the dirt and washing water flowing from the radial flow surface to the circumferential flow path and the collision area is separated from the predetermined distance in the height direction. Therefore, it is possible to more surely prevent the dirt and washing water flowing from the radial flow path of the radial flow path to the circumferential flow path from flowing into the clearance portion before colliding with the collision area.

In the present invention, it is preferable to further include a common rotary drive shaft extending at least between the pulverizing section and the pressurized conveying section, and transmitting a driving force for agitating the washing water in the pulverizing section from the driving source and conveying under pressure. A driving force for rotating the impeller in the portion; and a flow path around the rotating shaft, which connects the crushing portion and the pressure conveying portion, and a part of the outer peripheral surface of the rotating drive shaft passing through the common portion between the crushing portion and the pressure conveying portion, And another part is formed so that it may pass between a disc part and a pressure conveyance part.

In the present invention thus constituted, even if a common rotary drive shaft is disposed between the pulverizing section and the pressurized conveying section, the flow path around the rotary shaft such as the wear of the common rotary drive shaft is reduced to pass the common rotation. drive The outer peripheral surface of the shaft is formed, and the fibrous foreign matter and the washing water can flow together into a part of the outer peripheral surface of the common rotary drive shaft and the other part of the rotary shaft formed between the disc portion and the pressure conveying portion. In the case of the structure of the surrounding flow path, since it is provided with a restriction portion that makes it difficult for dirt and washing water that collide with the collision area of the side wall to flow from the collision area into the gap portion, fibrous foreign matter can still be prevented from being pressurized in the disc portion and pressurized. The conveying parts and / or the common rotary drive shaft are entangled with each other and grow, so that the disc part, that is, the impeller cannot rotate and the motor is locked.

According to the flush toilet device of the present invention, even when a centrifugal pressurized conveying section (centrifugal pump, etc.) capable of achieving a high lift is used, and foreign matter that can only be crushed to a fibrous state in the crushing section is washed out, It is also possible to prevent the fibrous foreign matter from intertwining and growing between the disc portion and the pressurized conveying portion, so that the disc portion, that is, the impeller cannot rotate.

1‧‧‧ flush toilet device

2‧‧‧Toilet body

4‧‧‧ crushing pressure conveying device

6‧‧‧ indoor water supply pipe

8‧‧‧ indoor drainage pipe

10‧‧‧ Ground

12‧‧‧ feet

14‧‧‧ armrest

16‧‧‧ Building

16a‧‧‧ Inside the house

16b‧‧‧outside

18‧‧‧outdoor water pipe

20‧‧‧outdoor drainage pipe

22‧‧‧ Basin

24‧‧‧ water supply device

26‧‧‧Drain elbow pipe

28‧‧‧ water supply valve

30‧‧‧ aqueduct

32‧‧‧Exhaust

34‧‧‧ Crushing Department

36‧‧‧Pressure Conveying Department

38‧‧‧ Electric motor

40‧‧‧Operation Department

42‧‧‧Notification Department

44‧‧‧ Control Department

46‧‧‧Storage tank

48‧‧‧ crushing room

48a‧‧‧Zhoubi

48b‧‧‧ through the opening

50‧‧‧Disc

50a‧‧‧ protrusion

52‧‧‧rotation axis

54‧‧‧flow

56‧‧‧pump room

56a‧‧‧ above

57‧‧‧ under cover

58‧‧‧Inlet

60‧‧‧ Outflow

62‧‧‧ Impeller

64‧‧‧ sidewall

64a‧‧‧outer side wall

64b‧‧‧ inside sidewall

64c‧‧‧ lower end

64d‧‧‧upper

66‧‧‧Disc Department

66a‧‧‧ Side of crushing section

66b‧‧‧ radial flow pavement

66c‧‧‧ side of the disc

68‧‧‧ protrusion

68a‧‧‧ inside wall surface

68b‧‧‧ peripheral wall surface

70‧‧‧Gap section

74‧‧‧Radial flow path

76‧‧‧ weekly flow path

78‧‧‧ conflict zone

80‧‧‧ Restricted Department

82‧‧‧ Flow path around the rotating shaft

82a‧‧‧ Flow path under the crushing chamber

82b‧‧‧outer surface flow path

82c‧‧‧Gap flow path

84‧‧‧ opening

136‧‧‧Pressure Conveying Department

152‧‧‧rotation axis

162‧‧‧ Impeller

164‧‧‧ sidewall

166‧‧‧Disc Department

170‧‧‧ Clearance

174‧‧‧Radial flow path

178‧‧‧ conflict zone

F‧‧‧fibrous foreign body

FIG. 1 is an overall perspective view showing a flush toilet device according to an embodiment of the present invention.

Fig. 2 is an overall configuration diagram showing a flush toilet device according to an embodiment of the present invention.

Fig. 3 is a cross-sectional view showing a crushing and pressure conveying device of a flush toilet device according to an embodiment of the present invention.

FIG. 4 is an enlarged cross-sectional view showing a pressure conveying section of the pulverizing pressure conveying device of FIG. 3.

Fig. 5 is an external view of a state where the pump chamber of the pressurizing conveying section of the pulverizing and pressurizing conveying device of Fig. 4 with the lower cover removed is viewed obliquely from below.

Fig. 6 is a schematic diagram showing the flow of dirt and washing water in the pump chamber of the pressure conveying section of the pulverizing and pressure conveying device of Fig. 4.

FIG. 7 is a schematic diagram showing the flow of dirt and washing water in a pump chamber of a pressure conveying section of a crushing and pressure conveying device of a conventional flush toilet device.

Next, a toilet device according to an embodiment of the present invention will be described with reference to the drawings. First, the overall configuration of a flush toilet device according to an 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 device according to an embodiment of the present invention, and Fig. 2 is an overall configuration diagram showing a flush toilet device according to an embodiment of the present invention.

As shown in FIG. 1, the flush toilet device 1 of this embodiment is a non-fixed flush toilet device which can be used as a toilet flushing device arranged next to a bed. The flush toilet device 1 includes a toilet body 2, a crushing and pressure conveying device 4 that grinds dirt and washing water discharged from the toilet body 2 and conveys the pressure, and a flexible pressure supply device for supplying washing water to the toilet body 2 Indoor water supply pipe 6; and a flexible indoor drainage pipe 8 (drain pipe) for discharging dirt and washing water from the crushing and pressure conveying device 4.

In addition, since the flush toilet device 1 is non-fixed and movable, a plurality of feet 12 are installed below the toilet body 2, and the toilet body 2 is supported on the floor 10 through the feet 12. In addition, a pop-up armrest 14 is mounted on the toilet body 2 to help the user sit up, and the balance of the sitting state can be ensured.

As shown in FIG. 2, the flush toilet device 1 is arranged on the floor 10 in the room 16 a of the building 16. In addition, the indoor water supply pipe 6 is connected to an outdoor water supply pipe 18 arranged outside the house 16b, and the indoor drainage pipe 8 is connected to an outdoor drainage pipe 20 arranged outside the house 16b. In this way, the flush toilet device 1 of this embodiment can discharge the dirt discharged to the toilet body 2 to the outside.

As shown in FIG. 2, the toilet body 2 of the flush toilet device 1 includes a basin portion 22 provided on the front side of the toilet body 2 and receiving dirt; a water supply device 24 (water supply unit) provided behind the basin portion 22 The upper part is used to supply washing water to the basin part 22; and the drain elbow pipe 26 is provided so as to communicate with the bottom of the basin part 22 and discharges dirt together with the washing water. 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 guide path 30 for supplying washing water from the water supply valve 28 to the basin portion 22. In addition, a discharge port 32 is formed at the downstream end of the drain elbow pipe 26 for discharging dirt and washing water to the crushing and pressure conveying device 4.

Here, the toilet body 2 of the flush toilet device 1 according to the present embodiment described above is a flush toilet that discharges dirt by using a drop in the washing water in the basin portion 22. However, the toilet body 2 is not limited to this shape It can also be applied to a siphon type or siphon jet type toilet, or a check valve type toilet provided with a check valve in the outlet 32 of the toilet body 2.

The water supply device 24 may be a water tank type water supply device that supplies washing water from a water storage tank.

As shown in FIG. 2, the crushing and pressure conveying device 4 of the flush toilet device 1 is provided with: a crushing section 34 that grinds the dirt; and a pressure conveying section 36 that pressurizes and conveys the quilt to the indoor drainage pipe 8. Crushing dirt. These pulverizing sections 34 and the pressurizing conveying section 36 are mounted with a combined electric motor 38 that drives these. Here, the electric motor 38 is a DC brushless motor and is capable of variable speed control.

In addition, the flush toilet device 1 is provided with: an operation unit 40 to be operated by a user; a notification unit 42 for notifying a user of the status information of the flush toilet device 1; and a control unit 44 to the operation unit through the user The operation of 40 allows the water supply device 24 and the crushing and pressurizing conveying device 4 to be controlled while notifying the notification unit 42 of the status information of the flush toilet device 1.

The operation unit 40 is provided with an operation switch and the like, and the user can operate the start of the washing operation through the operation switch and the like. In addition, when an operation switch or the like of the operation unit 40 is operated, the operation instruction is sent to the control unit 44. The control unit 44 sends a water supply instruction to the water supply device 24 according to the instruction, and performs a predetermined time from the water supply device 24 to the basin portion 22. Water to clean the toilet body 2. Then, the control unit 44 sends an operation signal to the crushing and pressurizing conveying device 4 to cause the crushing and pressurizing conveying device 4 to operate. In addition, the control unit 44 sends status information of the flush toilet device 1 Send to notification section 42. In addition, the notification unit 42 is provided with an LED lamp and / or a small speaker, and can notify the user of status information through visual and / or audio. In addition, the notification unit 42 can notify the user of an abnormality by turning on or blinking the LED lamp in accordance with an instruction from the control unit 44.

Next, the crushing and pressure conveying device 4 of the flush toilet device 1 will be described with reference to FIGS. 3 to 7. FIG. 3 is a cross-sectional view showing a crushing and pressure conveying device of a flush toilet device according to an embodiment of the present invention, FIG. 4 is an enlarged cross-sectional view showing a pressure and conveying section of the crushing and pressure conveying device, and FIG. 5 is an obliquely downward view. The external view of the state of the pressurizing conveying chamber of the pressurizing conveying section of the pulverizing and pressurizing conveying device with the lower cover removed is shown in FIG. 6. FIG. Figure 7 is a schematic diagram showing the flow of dirt and washing water in the pressure transfer chamber. Fig. 7 is a diagram showing the dirt and washing water in the pressure transfer chamber of the pressure transfer section of the crushing and pressure transfer device of the conventional flush toilet device. Flow schematic diagram.

As shown in FIG. 3, the crushing and pressurizing conveying device 4 is connected to the discharge port 32 of the drain elbow pipe 26 of the toilet body 2 described above, and the dirt flows into it together with the washing water.

The crushing and pressurizing conveying device 4 includes a storage tank 46, and a crushing section 34 is provided inside the storage tank 46. The pulverizing unit 34 includes a pulverizing chamber 48 which is formed inside the peripheral wall 48a. The peripheral wall 48 a of the crushing chamber 48 communicates with the discharge port 32 of the drainage elbow pipe 26 described above on one side. A disc 50 is provided in the lower portion of the crushing chamber 48 for agitating the dirt in the crushing chamber 48. The disc 50 is directly connected to a rotation shaft 52 (common rotation drive shaft) attached to the electric motor 38 and is rotatable. And, on that disc 50 has a plurality of protrusions 50a formed thereon, and dirt can become caught on these protrusions 50a and become easily agitated.

Specifically, the arrow in FIG. 3 indicates the flow state of the dirt and the washing water. From this arrow, it can be seen that the dirt falling on the disc 50 moves to the outer peripheral side together with the washing water due to the rotation of the disc 50, and After colliding with the peripheral wall 48a, it rises along the peripheral wall 48a, and descends on the disc 50 while moving toward the inner peripheral side. The dirt is stirred and pulverized while rotating in the vertical direction like this. In this manner, the pulverizing unit 34 constitutes a water-flow-disintegrating pulverizing unit that, while storing the washing water, decomposes the contaminants by permeating the water flow generated by stirring the stored washing water. In addition, the pulverizing unit 34 may be a pulverizing unit that physically pulverizes the dirt through a blade of a knife or the like.

As shown in FIG. 3, a plurality of through openings 48b (passing restriction portions) of a predetermined size are formed near the outer peripheral side of the disc 50 of the peripheral wall 48a. Because of these passage openings 48b, only the dirt pulverized in a size smaller than a predetermined size can pass through the peripheral wall 48a, and on the other hand, the passage of dirt larger than a predetermined size is restricted.

Next, the pressure conveyance section 36 of the crushing and pressure conveying device 4 will be described in detail with reference to FIGS. 4 to 6.

The pressurized conveying section 36 forms a centrifugal pump capable of achieving a high head. The pressure conveyance unit 36 includes a pump chamber 56. A lower cover 57 is attached to a lower portion of the pump chamber 56. An inflow port 58 through which dirt and washing water flows is formed in a central portion of the lower cover 57. An outflow port 60 is formed on the outer peripheral side of the pump chamber 56 for dirt and washing water to flow out.

The pressure conveyance unit 36 further includes an impeller 62 that is disposed inside the side wall 64 of the pump chamber 56 and rotates in the pump chamber 56. The impeller 62 includes a disc portion 66 having a disc shape, and a protrusion portion 68 provided to protrude downward from the disc portion portion.

The disk portion 66 is arranged above the inside of the side wall 64 of the pump chamber 56 so as to be substantially horizontal. The disc portion 66 is coupled to the lower end of the rotation shaft 52 and is rotated by the electric motor 38. The rotation shaft 52 extends at least between the pulverizing section 34 and the pressure conveying section 36, and transmits the driving force of the disc 50 that agitates the washing water in the pulverizing section 34 from the electric motor 38 (drive source) and the pressure conveying section. In 36, a common rotary drive shaft is formed for a driving force for rotating the disk portion 66 of the impeller 62.

The disk portion 66 includes a pulverizing portion side surface 66 a on the pulverizing portion 34 side of the disk portion 66, a radial flow road surface 66 b on the radial flow path side of the disk portion 66, and a disk forming a circular outer periphery of the disk portion 66. 66c. As will be described later, the disk side surface 66 c of the disk portion 66 is slightly separated from the inner side wall 64 b of the pump chamber 56, and a gap portion 70 is formed. In addition, the pulverizing portion side surface 66 a of the disc portion 66 is slightly separated from the upper surface 56 a of the pump chamber 56, and a gap flow path 82 c is formed. Therefore, the disk portion 66 can be driven to rotate relative to the upper surface 56 a of the pump chamber 56. In addition, the gap flow path 82c forms a relatively narrow flow path between the pulverizing section side surface 66a and the upper surface 56a.

The two protruding portions 68 of the impeller 62, that is, the two blade portions have the same shape, and are arranged to be point-symmetrical in plan view. The inner side wall surfaces 68a of the protruding portions 68 are formed to extend outward from the central portion in the radial direction with the inlet 58 as the center. Two radial flow paths 74. In addition, two protrusions on the impeller 62 A circumferential flow path 76 extending in the circumferential direction is formed between the outer peripheral side wall surface 68b of each of the rising portions 68 and the side wall 64 of the pump chamber 56. The upstream ends of these circumferential flow paths 76 communicate with the radial flow paths 74, respectively. The end is connected to the outflow port 60 of the pump chamber 56.

In the radial flow path 74, the centrifugal force generated by the rotation of the impeller 62 pushes the dirt and the washing water from the central portion to the outside in the radial direction relatively strongly, and forms a relatively strong flow toward the outside. Here, in the present embodiment, the two radial flow paths 74 formed by the two projections 68 of the pressure conveying section 36 form a single flow path extending substantially linearly as a whole. As a modified example, the radial flow path 74 of the impeller 62 may be a radial flow path of different shape and number formed by different shapes and number of protrusions. For example, it may be formed of three projections. The three radial flow paths may be four radial flow paths formed by four protrusions, or may be a plurality of radial flow paths formed by a plurality of protrusions.

In the present embodiment, the impeller 62 that rotates in the pump chamber 56 of the pressurized conveyance unit 36 includes a disk portion 66 that is provided above the pump chamber 56 and is attached to a rotation shaft 52 that extends upward; and The protrusion 68 is provided to protrude downward from the disc portion 66. However, in the flush toilet device according to another embodiment, the impeller rotating in the pump chamber of the pressurized conveyance unit may be provided in the pump chamber. And a disk portion that is attached to a rotating shaft that extends downward; and a structure that is provided with a protruding portion that protrudes upward from the disk portion.

Next, the restricting part and the clearance part of the pressure conveying part 36 of the crushing and pressure conveying device 4 will be described in detail with reference to FIGS. 4 to 6. Bright.

The side wall 64 of the pump chamber 56 of the pressurizing conveying section 36 is provided with a side wall 64 provided on the side wall 64 that collides with the dirt and washing water flowing from the radial flow path 74 to the circumferential flow path 76 by the centrifugal force generated by the rotation of the impeller 62. The collision area 78 is formed between the collision portion 78 and the clearance portion 70 between the side wall 64 and the disc portion 66, and it is difficult for dirt and washing water to flow from the collision area 78 into the clearance portion 80 of the clearance portion 70.

The side wall 64 of the pump chamber 56 of the pressurized conveying section 36 includes an outer side wall 64a forming a longitudinal wall surface of a side portion of the pump chamber 56 opposite to the outlet of the radial flow path 74, and is arranged closer to the outer side wall 64a An inner side wall 64b of the longitudinal wall surface on the inner side in the radial direction and forming a side portion of the pump chamber 56 opposite to a part of the disk side surface 66c of the disk portion 66.

A lower portion of the outer side wall 64 a is connected to the lower cover 57, and an upper portion thereof is connected to the restriction portion 80. The outer side wall 64 a is formed on the radially outer side of the radial flow path 74 and on the radially outer side of the circumferential flow path 76. As shown in FIGS. 4 and 6, the outer side wall 64 a is formed to have a height greater than the height of the radial flow path 74, and is formed to cover the radial direction outer side of the radial flow path 74 in the horizontal direction.

The outer side wall 64a has a collision area 78 where dirt and washing water collide from the radial flow path 74 to the circumferential flow path 76 due to the centrifugal force generated by the rotation of the impeller 62. In such a collision area 78, the washing water flowing straight from the center of the impeller 62 to the outside in the radial direction maintains its flow and collides with the outer side wall 64a as if it was compressed. Therefore, when dirt and washing water collide, Water pressure develops in the collision area 78 Status of higher areas. Therefore, the dirt and the washing water flow from the area where the water pressure is relatively high to the area where it is relatively low, and the collision area 78 spreads not only in the circumferential direction but also in the height direction. The restricting portion 80 can restrict the flow from the collision area 78 to the gap portion 70 among the diffused flows.

A lower portion of the inner side wall 64 b is connected to the restriction portion 80, and an upper portion thereof is connected to an upper surface 56 a of the pump chamber 56. The lower end 64c of the inner side wall 64b is disposed between the crushing part side surface 66a of the disc portion 66 and the radial flow road surface 66b. The lower end 64c of the inner side wall 64b is provided at a position separated from the radial flow path 66b of the radial flow path side of the disc portion 66 by a predetermined distance D1 in the height direction.

The restriction portion 80 is provided between the upper end 64d of the outer side wall 64a and the lower end 64c of the inner side wall 64b so as to connect the outer side wall 64a and the inner side wall 64b. The restriction portion 80 forms a stepped portion extending from the outer side wall 64a to the inner side in the radial direction between the outer side wall 64a and the inner side wall 64b. More specifically, the restricting portion 80 is formed so as to extend in a horizontal direction at a substantially right angle with respect to the outer side wall 64a and the inner side wall 64b extending substantially vertically.

The restriction portion 80 is arranged on the side wall 64 of the pump chamber 56 to prevent a straight flow path that can directly connect the collision area 78 and the gap portion 70 on the same plane, and / or to form a collision area that can be connected linearly on the same plane. 78 is a linear flow path with the gap portion 70. In other words, the restricting portion 80 suppresses and / or restricts the washing water flowing (diffusing) along the outer side wall 64a among the dirt and washing water that collide with the collision area 78 along the same An extension line having a substantially linear flow direction on a plane flows into the gap portion 70. A stepped portion or the like is formed in the restricting portion 80 so as to restrict the dirt and washing water spreading from a region with a relatively high pressure near the collision area 78 to flow directly into the gap portion 70 along the same plane. The restricting portion 80 can change the flow direction of the dirt and the washing water that hits itself and reduce the flow potential. The restricting portion 80 is disposed at a position higher than the collision area 78 outside the radial direction of the flow path in the radial flow path 74. That is, the restricting portion 80 is arranged on the outer side in the height direction of the collision area 78 and on the side of the disc portion 66. The restricting portion 80 is provided at a position separated from the radial flow path 66 b on the radial flow path side of the disc portion 66 by a predetermined distance D1 in the height direction.

The gap portion 70 is formed between the inner side wall 64b connected to the inside of the restricting portion 80 and the disc portion 66. The gap portion 70 is provided on the radial flow path 66b away from the radial flow path side of the disc portion 66 in a predetermined height direction. The distance from D1.

These predetermined distances D1 are set to a distance such that even if the water flow such as washing water flowing out from the radial flow path 74 on the radial flow road surface 66b spreads upward, the water flow does not directly flow into the gap portion 70 or does not It collides with the lower end 64c of the inner side wall 64b.

In order to reduce the size of the pump and improve the performance of the pump, a disc side surface 66c is arranged near the inner wall surface 68a, and the gap portion 70 is formed with a relatively small gap size. In the cross section shown in FIG. 6, the flow path width of the gap portion 70 is in a range of 0.5 mm to 20 mm.

In addition, the crushing and pressurizing conveying device 4 includes a rotating shaft peripheral flow path 82 which communicates with the crushing portion 34 and the pressurizing conveying portion 36, and is partially shaped. The outer peripheral surface of the rotating shaft 52 which is common between the pulverizing section 34 and the pressure conveying section 36 is formed between the disk section 66 and the pressure conveying section 36.

A pressure conveying section 36 is provided in a lower portion of the pulverizing chamber 48 of the pulverizing section 34, and the rotary shaft 52 extends from the electric motor 38 into the pulverizing section 34 and extends within the pressure conveying section 36. The rotating shaft 52 is attached to the disk 50 in the pulverizing section 34 and is attached to the disk section 66 in the pressure conveying section 36.

A pulverizing chamber lower flow path 82 a is formed between the disc 50 and the pulverizing chamber 48 on the back side (lower side) of the disc 50 under the pulverizing chamber 48. Since the lower flow path 82 a of the crushing chamber is formed, the disk 50 can be driven to rotate without contacting the bottom surface of the crushing chamber 48. An opening portion 84 is formed near the center in the radial direction between the pulverizing portion 34 and the pressure conveying portion 36. A rotation shaft 52 is disposed at the center of the opening portion 84. In the opening portion 84, a peripheral region on the outer peripheral surface of the rotation shaft 52 forms an outer peripheral surface flow path 82 b. In this way, since the outer peripheral surface flow path 82b is formed such as to pass through the outer peripheral surface of the rotation shaft 52, it is possible to reduce the wear of the common rotation shaft 52 and the like and / or the friction resistance (rotation resistance) of the rotation shaft 52.

In addition, the gap flow path 82c is formed in the portion of the gap flow path 82c formed between the disc portion 66 and the pressurized conveying portion 36 among the flow paths 82 around the rotary shaft, so that the disc portion 66 does not contact the pump. The upper surface 56a of the chamber 56 is driven to rotate.

In this way, the flow path 82 around the rotating shaft is formed such that a small gap between the crushing chamber 48 and the disc 50 passes through the lower flow path 82a of the crushing chamber on the back side (lower side) of the disc 50 and passes through the image through rotation. An outer peripheral surface flow path 82 b such as the outer peripheral surface of the shaft 52 reaches the clearance portion 70 through a clearance flow path 82 c formed between the disk portion 66 and the pressure conveyance portion 36. Dirt and washing water can flow from the crushing chamber 48 into the pressure conveying section 36 through the rotation shaft peripheral flow path 82, and can flow from the pressure conveying section 36 into the crushing room 48 through the rotation shaft peripheral flow path 82. In addition, a small gap between the crushing chamber 48 and the disc 50 forms a very small gap (smaller gap than the opening 48b), so that dirt larger than a predetermined size does not flow into the flow path 82 around the rotary shaft, In addition, the flow rate of the dirt and washing water flowing through the flow path 82 around the rotating shaft is limited to a very small amount compared with the flow rate flowing through the flow path 54.

Further, in the present embodiment, the inner side wall 64b is disposed closer to the inner side in the radial direction than the outer side wall 64a, the restricting portion 80 extends to the inner side in the radial direction, and the gap portion 70 is formed closer to the radial direction than the collision area 78. Different walls on the inside.

On the other hand, as another embodiment, the side wall of the pump chamber is not formed on the plane of the inner side wall and the outer side wall, but the side wall is formed as a vertical wall surface from the lower end to the upper end of the pump chamber. The collision areas may be arranged on the same wall surface. At this time, the restricting portion may be formed between the gap portion and the collision region as a protruding portion or a protruding portion protruding inward from the side wall. That is, on the side wall of the pump chamber, the restricting portion is arranged to prevent a flow path connecting the collision area and the gap portion in a straight line on the same plane. That is, since the flow of the dirt and washing water which flowed from the collision area to the gap portion conflicts with the restriction portion, it becomes difficult to flow into the gap portion. In this way, in other embodiments, the side wall also includes: The centrifugal force generated by the rotation causes the collision area between the dirt and the washing water flowing from the radial flow path to the circumferential flow path, and the gap formed between the side wall and the disc part, and the dirt and the washing water are caused. It is difficult to flow into the restricting portion of the gap portion from the collision area.

Next, the operation (action) of the flush toilet device according to the embodiment of the present invention described above will be described with reference to FIGS. 2 to 6. In FIGS. 2 to 6, each arrow indicates the flow state of dirt and washing water.

First, in order to wash the toilet body 2 with washing water, a user operates an operation switch or the like of the operation unit 40 to start a washing operation. When an operation switch or the like of the operation unit 40 is operated, the operation instruction is sent to the control unit 44. The control unit 44 sends a water supply instruction to the water supply device 24 according to the instruction, and supplies water to the basin portion 22 from the water supply device 24 for a predetermined time. , Thereby cleaning the toilet body 2. In addition, an operation command is transmitted from the control unit 44 to the electric motor 38, and the electric motor 38 starts a rotation operation.

Dirt and washing water are discharged from the drainage elbow pipe 26 due to the drop of the washing water, flow into the pulverizing chamber 48 of the pulverizing and pressure conveying device 4 through the discharge port 32, and descend onto the disc 50. In the crushing chamber 48, the disc 50 is already rotating, and the dirt falling on the disc 50 moves with the washing water to the outer peripheral side due to the rotation of the disc 50, and rises along the peripheral wall 48a after colliding with the peripheral wall 48a. Then, while moving downward while moving toward the inner peripheral side, it is stirred and crushed while rotating in the vertical direction (see FIG. 3).

Next, as shown in FIG. 3 and FIG. 4, a plurality of passage openings 48 b of a predetermined size are formed near the outer peripheral side of the disc 50 of the peripheral wall 48 a. Therefore, among the dirt that is pulverized in the pulverization chamber 48, Dirt smaller than the size of the passage opening 48b is discharged from the passage opening 48b to the flow path 54 on the downstream side. The dirt larger than the size of the passage opening 48b continues to be stirred and pulverized in the vertical direction in the pulverizing chamber 48 until the size becomes smaller than a predetermined size.

The pulverized dirt flows into the pump chamber 56 through the flow path 54 from the inflow port 58 formed in the lower center portion of the pump chamber 56 of the pressurized conveyance unit 36 through the flow path 54. As shown in FIG. 6, the dirt and washing water flowing into the pump chamber 56 flows into the radial flow path 74 formed between the protrusions 68, as shown by the arrow A1, from the central portion of the pump chamber 56 via the impeller. The centrifugal force generated by the rotation of 62 flows from the radial flow path 74 to the circumferential flow path 76. In addition, the dirt and washing water pushed from the radial flow path 74 to the outer peripheral side of the circumferential flow path 76 by the centrifugal force collide with the collision area 78 of the side wall 64 while maintaining the flow potential and direction. As shown by arrow A2, the dirt and washing water that collide with the collision area 78 form a flow that diffuses not only in the circumferential direction but also in the height direction from the collision area 78. A relatively strong flow of dirt and washing water to the outflow port 60 is formed in the circumferential flow path 76, and a flow that diffuses from the collision area 78 in the circumferential direction becomes a flow toward the outflow port 60. On the other hand, as indicated by arrow A2, there is a flow that diffuses up and down in the height direction from the collision area 78.

Here, the water flow of the dirt and washing water which are to be diffused up and down in the height direction from the collision area 78 flows along the outer side wall 64a and collides. 于 极限 部 80。 Restriction 80. As indicated by an arrow A3 in FIG. 5, the water flow that collides with the restricting portion 80 flows in the direction of the outflow port 60 of the circumferential flow path 76 (the direction toward the front side or the back side in FIG. 6). The restricting portion 80 suppresses and / or restricts the washing water that wants to flow along the outer side wall 64 a from the dirt and washing water colliding with the collision area 78 from flowing into the gap portion 70 along a substantially linear water flow on the same plane. In addition, even in the vicinity of the restricting portion 80, most of them flow outward in the radial direction by the centrifugal force generated by the rotation of the impeller 62, and it is difficult to form a flow that flows inward in the radial direction like the centrifugal force. As a result, it becomes difficult for the dirt and washing water reaching the restricting portion 80 to flow to the gap portion 70. Therefore, as shown in FIG. 6, it is possible to make it difficult for the fibrous foreign matter F in the dirt to flow from the collision area 78 into the gap 70, and prevent the fibrous foreign matter F from being entangled between the disc portion 66 and the pump chamber 56. And the disk portion 66, that is, the impeller 62 cannot rotate and the motor is locked.

Further, the restricting portion 80 is provided at a position away from the predetermined distance D1 in the height direction by the dirt and washing water flowing from the radial flow road surface 66b to the circumferential flow path 76 and the collision area 78. In addition, the clearance 70 provided on the inner side wall 64b to which the restricting portion 80 is connected is also provided with the dirt and washing water provided in the height direction from the radial flow surface 66b to the circumferential flow path 76 and the collision area 78. The distance from D1. Therefore, it is possible to more reliably prevent the dirt and washing water flowing from the radial flow path 66 b of the radial flow path 74 to the circumferential flow path 76 from flowing directly into the gap 70 before colliding with the collision area 78 or colliding with the lower end of the inner side wall 64 b. 64c.

As shown in FIG. 6, in the flow path 82 around the rotating shaft, since dirt and washing water are difficult to flow into the gap portion 70, a flow of washing water flowing from the gap portion 70 to the gap flow path 82 c is not formed. Therefore, as shown by the arrow A4, the dirt and the washing water flow from the crushing chamber 48 through the lower flow path 82a, the outer peripheral flow path 82b, and the gap flow path 82c of the crushing chamber to the gap portion 70, or in the above-mentioned flow path. The washing water is in a state of being substantially retained.

In the flow path 82 around the rotating shaft, since the washing water can flow between the pulverizing section 34 and the pressure conveying section 36, a gap flow path 82c formed between the disc section 66 and the pressure conveying section 36 serves as dirt. A part of the flow path of the flow path 82 around the rotating shaft through which objects and washing water can flow is formed, and the technical meaning is different from the fixed gap between the conventional disk portion 66 and the pressure conveyance portion 36. In a non-fixed flush toilet device, in a configuration in which the crushing unit 34 and the pressurizing conveying unit 36 are driven in common by a common rotating shaft, a flow path 82 around the rotating shaft is provided as a unique flow path. Furthermore, problems caused by fibrous foreign matter and washing water flowing in the flow path 82 around the rotating shaft also become inherent problems of the non-fixed flush toilet device.

After that, the dirt and washing water in the pump chamber 56 are discharged from the outflow port 60. The dirt and washing water discharged by the pressurized conveyance unit 36 are discharged to the outdoor drain pipe 20 through the indoor drain pipe 8 and the discharge operation of the dirt is ended.

Next, the operational effects of the flush toilet device 1 of the present embodiment described above will be described.

First, in the flush toilet device 1 of this embodiment, if foreign objects such as “boxed tissue paper” and “pushable wet tissues” are flushed out of the toilet body 2, they are crushed in the crushing unit 34 into It flows into a fibrous shape and flows into the pressure conveyance section 36. The fibrous foreign matter F and the washing water flowing from the inflow port 58 into the pressure conveyance section 36 flow from the radial flow path 74 to the outer circumferential flow path 76 by the centrifugal force generated by the rotation of the impeller 62. When the dirt and washing water that collide with the collision area 78 of the outer side wall 64 from the radial flow path 74 flow into the gap formed between the side wall 64 and the disc portion 66 from the collision area 78, the fibrous foreign matter F and the washing Water flows into the gap together, and the fibrous foreign matter F is entangled and grows between the disk portion 66 and the pressure conveying portion 36, so that the disk portion 66, that is, the impeller 62 cannot rotate and the motor is locked. .

However, according to the flush toilet device 1 of this embodiment, since the side wall of the pressurized conveying portion 36 is provided with a centrifugal force generated by the rotation of the impeller 62, it flows from the radial flow path 74 to the circumferential flow path 76 and collides with the side wall 64 It is difficult for dirt and washing water in the collision area 78 to flow from the collision area 78 into the restricting portion 80 of the gap portion 70. Therefore, it is possible to prevent the fibrous foreign matter F from intertwining and growing between the disc portion 66 and the pressure conveying portion 36. As a result, the disc portion 66, that is, the impeller 62 cannot rotate and the motor is locked.

Further, according to the flush toilet device 1 of the present embodiment, since the gap portion 70 is formed between the inner side wall 64b and the disc portion 66, it is difficult for dirt and washing water to collide with the collision area 78 of the outer side wall 64a from the collision. The area 78 flows inward in the radial direction like a centrifugal force, making it difficult to flow in. The area 78 is formed closer to the radius than the collision area 78. Direction inner gap portion 70.

Further, according to the flush toilet device 1 of the present embodiment, the restricting portion 80 is provided in a direction in which the flow of the dirt and washing water flowing from the radial flow surface 66b to the circumferential flow path 76 and the collision area 78 is spaced a predetermined distance in the height direction. position. Furthermore, the clearance 70 provided on the inner side wall 64b to which the restricting portion 80 is connected is also provided in the height direction from the flow of the dirt and washing water flowing from the radial flow surface 66b to the circumferential flow path 76 and the collision area 78. A distance from a prescribed distance. Accordingly, it is possible to more surely prevent dirt and washing water flowing from the radial flow path 66 b of the radial flow path 74 to the circumferential flow path 76 from flowing into the clearance portion 70 before colliding with the collision area 78.

Furthermore, according to the flush toilet device 1 of the present embodiment, even if a common rotary shaft 52 is provided between the crushing section 34 and the pressure conveying section 36, the rotation of the common rotary shaft 52 is reduced and the periphery of the rotary shaft is reduced. The flow path 82 is formed so as to pass through the outer peripheral surface of the common rotary shaft 52, and the fibrous foreign matter F can flow into the part of the outer peripheral surface of the common rotary shaft 52 together with the washing water and the other part is formed in the disc portion. In the case of the structure of the gap flow path 82c between the 66 and the pressurized conveying portion 36, the restriction portion 80 is provided to prevent dirt and washing water that collide with the collision area 78 of the side wall 64 from flowing into the gap portion 70 from the collision area 78. Therefore, it is also possible to prevent the fibrous foreign matter F from intertwining and growing between the disk portion 66 and the pressure conveying portion 36 and / or the common rotating shaft 52, so that the disk portion 66, that is, the impeller 62 cannot rotate and the motor is blocked. Locked.

36‧‧‧Pressure Conveying Department

52‧‧‧rotation axis

56‧‧‧pump room

56a‧‧‧ above

62‧‧‧ Impeller

64‧‧‧ sidewall

64a‧‧‧outer side wall

64b‧‧‧ inside sidewall

64c‧‧‧ lower end

64d‧‧‧upper

66‧‧‧Disc Department

66a‧‧‧ Side of crushing section

66b‧‧‧ radial flow pavement

66c‧‧‧ side of the disc

68‧‧‧ protrusion

68a‧‧‧ inside wall surface

68b‧‧‧ peripheral wall surface

70‧‧‧Gap section

74‧‧‧Radial flow path

76‧‧‧ weekly flow path

78‧‧‧ conflict zone

80‧‧‧ Restricted Department

82‧‧‧ Flow path around the rotating shaft

82c‧‧‧Gap flow path

A1, A2, A4‧‧‧ arrows

F‧‧‧fibrous foreign body

Claims (4)

A flush toilet device is a non-fixed flush toilet device, which is characterized by: a toilet body; a water supply unit for supplying washing water to the toilet body; and pulverizing dirt discharged from the toilet body together with the washing water A crushing unit; a pressure conveying unit that pressurizes and conveys the dirt and washing water pulverized by the crushing unit; and flexibility for discharging to the outside the sewage and washing water that is pressurized and conveyed by the pressure conveying unit A drainage pipe provided between the crushing unit and the pressurizing conveying unit, and passing the contaminated material pulverized in the crushing unit to a size equal to or smaller than a predetermined size, and conveyed to the passage restricting unit of the pressurizing conveying unit, the pressurizing conveying unit; The section is a centrifugal pressure conveying section including an impeller, an inlet, an outlet, a radial flow path, and a circumferential flow path. The impeller is disposed inside the side wall of the pressure conveying section and rotates in the pressure conveying section. An impeller includes a disc-shaped disc portion and a protruding portion provided to protrude from the disc portion. The inflow port is formed in a central portion of the pressurized conveying portion. The outflow port is formed in the above. An outer circumferential portion of the pressure transmission portion the radial flow passage is formed between the projecting portion and communicating with the inlet port and extend toward the outer periphery of the outer circumference extends along the circumferential periphery of the impeller in the flow path and communicating with the The outflow port, the side wall of the pressurized conveying unit is provided with the side wall provided on the side wall that conflicts with dirt and washing water flowing from the radial flow path to the circumferential flow path due to centrifugal force generated by the rotation of the impeller. A collision area is formed between the side wall and the gap portion between the disc portion, and it is difficult for dirt and washing water to flow from the collision area into the gap portion. For example, the flush toilet device according to item 1 of the patent application, wherein the side wall of the pressurized conveying section includes: an outer side wall having the conflict region; and an inner side wall formed closer to a radial inner side than the outer side wall. The gap portion is formed between the inner side wall and the disc portion, and the restricting portion extends toward the inner side in the radial direction of the pressure conveying portion and connects the outer side wall and the inner side wall. For example, the flush toilet device according to item 2 of the application, wherein the restricting portion is provided at a position separated from the radial flow path side of the radial flow path side of the disc portion by a predetermined distance in the height direction, and the clearance portion is provided. The radial flow path from the radial flow path side of the disc portion is located at a predetermined distance in the height direction. The flush toilet device according to any one of claims 1 to 3, further comprising: a common rotary driving shaft extending at least between the crushing section and the pressure conveying section, and transmitting from the driving source. A driving force for agitating the washing water in the pulverizing section and a driving force for rotating the impeller in the pressure conveying section; and A flow path around the rotation shaft communicates the pulverizing section and the pressure conveying section, and a part is formed on an outer peripheral surface of the common rotary drive shaft passing through the pulverizing section and the pressure conveying section, and the other section is formed as It passes between the said disk part and the said pressure conveyance part.