Toilet bowl device

Abstract

To provide a toilet bowl device having a vacuum breaker capable of increasing a flow rate.SOLUTION: A toilet bowl device 1 includes: a functional part 3 disposed at a rear part of a toilet bowl body 2; a base part 30 on which components constituting the functional part 3 are arranged; a nozzle 41 disposed at a front part of the functional part 3 and configured to discharge wash water for cleaning a human body; a wash water circuit 1300 that supplies wash water on the base part 30; and a vacuum breaker 136 that prevents backflow of the wash water circuit 1300 and is disposed rearward of a rear end of the nozzle 41.SELECTED DRAWING: Figure 5

Description

[Technical field]

[0001] The present disclosure relates to toilet systems. [Background technology]

[0002] Conventionally, it is known to provide a flushing nozzle for washing the user's private parts in a functional section disposed at the rear of the toilet body. Washing water is supplied to the flushing nozzle. A vacuum breaker is provided above the flushing nozzle to prevent backflow of the flushing water (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2021-152296 Summary of the Invention [Problem to be solved by the invention]

[0004] For example, in addition to the washing nozzle for washing the human body, other washing mechanisms may be arranged on the base of the functional unit, and washing water may also be supplied to the water circuit connected to these. If the amount of washing water supplied is increased, the vacuum breaker placed in the water supply path will become larger, which may interfere with other components or reduce design freedom. [Means for solving the problem]

[0005] The present disclosure relates to a toilet apparatus comprising a functional part located at the rear of a toilet body, a base part on which each component constituting the functional part is located, a nozzle located in front of the functional part and spraying cleaning water for cleaning the human body, a flushing water circuit on the base part that supplies flushing water, and a vacuum breaker that prevents backflow in the flushing water circuit and is located behind the rear end of the nozzle. [Brief description of the drawings]

[0006] [Figure 1] FIG. 1 is a perspective view of a toilet apparatus according to an embodiment of the present invention. [Diagram 2] FIG. 2 is a side view of the toilet device of the present embodiment in a fixed position. [Diagram 3] FIG. 2 is a side view of the toilet apparatus of the present embodiment in a raised position. [Figure 4] 2 is a vertical cross-sectional view of the functional part, toilet lid and toilet seat of the present embodiment. FIG. [Diagram 5] FIG. 2 is a perspective view of a functional portion of the present embodiment. [Figure 6] FIG. 2 is a perspective view of a nozzle unit, a shutter section, and a shutter cleaning section according to the embodiment. [Figure 7] 2 is a vertical cross-sectional view of the vicinity of the tip of the cleaning nozzle of the present embodiment. FIG. [Figure 8] 2 is a partial perspective view of the front side of the functional unit of the embodiment as viewed from the rear side. FIG. [Figure 9] FIG. 2 is a block diagram of a water circuit according to the embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0007] Hereinafter, an embodiment of the present disclosure will be described in detail with reference to the drawings. In the following description, the front-to-back direction as seen by a user seated on the toilet seat 21 is referred to as the front-to-back direction Y. The left-to-right direction as seen by a user seated on the toilet seat 21 is referred to as the left-to-right direction X. The up-to-down direction along the vertical direction relative to the floor surface on which the toilet device 1 is installed is referred to as the up-to-down direction Z.

[0008] As shown in FIG. 1, the toilet apparatus 1 according to this embodiment includes a toilet body 2, a toilet seat 21, a toilet lid 22, a functional section 3, a sanitary washing device 4, and a lifting mechanism 5 (see FIGS. 2 and 3).

[0009] The toilet body 2 has a bowl portion 20a that opens upward on the front side, and a flat upper surface 20b is formed at the rear. A toilet flush tank 111 that stores toilet flush water for flushing the toilet body 2 is disposed inside the toilet body 2 below the rear portion.

[0010] The toilet seat 21 is disposed on the upper surface of the periphery of the bowl portion 20a. The toilet lid 22 is disposed so as to cover the toilet seat 21 and the upper surface of the bowl portion 20a. As shown in Fig. 4, the toilet seat 21 and the toilet lid 22 are rotatably connected to the functional portion 3 (described later) by hinge portions 21a and 22a, respectively, and are opened and closed.

[0011] The functional part 3 is disposed on the upper surface 20b at the rear of the toilet body 2. The functional part 3 is provided with a plurality of devices, such as the sanitary cleaning device 4, that perform the functions of the toilet device 1. The functional part 3 has a base part 30 and a cover part 35.

[0012] 2 and 3, the functional unit 3 is configured so that a portion of it can rise and fall vertically. As shown in Fig. 5, the base unit 30 forms the bottom surface on which the components constituting each device of the functional unit 3 are arranged, and has a predetermined area. The base unit 30 has a movable base unit 31 that can rise and fall vertically, and a fixed base unit 32 that is fixed to the toilet body 2 and does not move.

[0013] The movable base part 31 is disposed in front of the functional part 3. The movable base part 31 has a front frame part 33 and a base back convex part 34 (see FIG. 8). The front frame part 33 is a periphery that hangs down slightly from the front end of the movable base part 31. The center part of the front frame part 33 in the left-right direction X is where the front end side of the cleaning nozzle 41 and the shutter part 42 described later are disposed, so that the periphery is recessed upward and opened, forming an open part 33a (see FIG. 8). The cleaning nozzle 41 as a nozzle described later moves forward and backward in this open part 33a. The base back convex part 34 is disposed at a position retreated from the center part of the front frame part 33 in the left-right direction X, and the back surface of the movable base part 31 is formed by swelling downward.

[0014] The fixed base part 32 is disposed behind the movable base part 31. The fixed base part 32 is fixed to the upper rear surface of the toilet body 2 by inserting a pair of shaft members 321 extending from the underside into mounting holes (not shown) in the toilet body 2.

[0015] The cover portion 35 is a member that covers the base portion 30, and has a side cover 351 that covers the sides of the base portion 30, and an upper cover 352 that covers the upper rear portion.

[0016] As shown in Figures 2 and 3, the lifting mechanism 5 has an extendable lifting shaft 51, a lifting lever (not shown), an upper mounting plate 52, and a lower mounting plate 53, and is a mechanism for raising and lowering the movable base part 31 to be raised and lowered between a fixed position shown in Figure 2 and an elevated position higher than the fixed position shown in Figure 3.

[0017] The lower mounting plate 53 is a metal plate that is attached to the toilet body 2 and the fixed base part 32. The lower mounting plate 53 is a vertically long plate whose longitudinal direction is arranged along the width direction of the toilet body 2, and has through holes formed on one and the other of the longitudinal sides.

[0018] The telescopic lift shaft 51 is a shaft that is connected to the toilet main body 2 and the underside of the movable base part 31 and can move up and down. Two telescopic lift shafts 51 are attached with a gap between them in the center of the width direction of the toilet device 1 on the movable base part 31. The telescopic lift shafts 51 pass through through holes in the lower mounting plate 53 and are attached to the inside of the toilet main body 2. The telescopic lift shafts can be extended and retracted up and down by the expansion and contraction force of a spring (not shown).

[0019] The upper mounting plate 52 is a metal plate supported on the upper end of the telescopic lifting shaft 51 and has approximately the same width and length as the lower mounting plate 53. The upper mounting plate 52 is fixed to the lower surface of the movable base part 31, so that the upward and downward movement of the telescopic lifting shaft 51 is linked to the movable base part 31.

[0020] The lift lever is attached so as to protrude from the side of the toilet body 2. The lift lever is connected to the mounting upper plate and the extendable lift shaft 51, and by operating the lift lever, it is possible to engage and release the spring, and to move the movable base part 31 to a fixed position and a raised position. By raising the movable base part 31, a gap is formed between the bottom surface of the movable base part 31 and the upper surface 20b of the toilet body 2, making cleaning easier.

[0021] The sanitary washing device 4 has a body washing function and is a device for washing the private parts of a user. As shown in Fig. 6, the sanitary washing device 4 is arranged as one device constituting the functional part 3, and has a washing nozzle 41, a nozzle unit 410, a shutter part 42, a nozzle washing part 43, a shutter washing part 44, and a functional part washing water circuit 130.

[0022] 6, the nozzle unit 410 has a support frame 411 that stores a pair of cleaning nozzles 41 therein so that they can be advanced and retreated, and supports the hose 121 and a nozzle drive mechanism (not shown). The front end side of the support frame 411 is located below the movable base part 31, and the rear end side is located above, and the support frame 411 is inclined downward from the rear side to the front side.

[0023] The pair of cleaning nozzles 41 are disposed at a distance from each other in the left-right direction X on the support frame 411 at the center in the left-right direction X at the front part of the functional part 3. Each of the pair of cleaning nozzles 41 ejects cleaning water for cleaning the human body and is used for anal washing and bidet washing. The cleaning nozzle 41 ejects cleaning water toward the human body from a nozzle water ejection port 41a provided at the upper part on the tip side.

[0024] 6 and 7, and an advanced position in which the cleaning nozzle 41 protrudes forward from that position beyond the shutter section 42 in the front-rear direction Y. The advanced position of the cleaning nozzle 41 is a position in which the cleaning nozzle 41 is stored inside the shutter section 42. The advanced position of the cleaning nozzle 41 is a position in which the cleaning nozzle 41 is advanced forward to clean the private parts of the user.

[0025] A rack of a nozzle drive mechanism (not shown) is provided on the back side of the cleaning nozzle 41. The nozzle drive mechanism (not shown) includes a long rack, a pinion, and a motor. The pinion meshes with the rack and is rotated by the drive of the motor. The cleaning nozzle 41 advances obliquely downward by the nozzle drive mechanism (not shown) relative to a support frame 412 (see FIG. 7) that is unitized with the cleaning nozzle 41 to form a nozzle unit 410. As a result, the tip of the cleaning nozzle 41 is configured to push the back surface (inner surface) of the shutter section 42 from the rear to the front.

[0026] As shown in FIG. 6, the nozzle cleaning section 43 is provided as a unit with the cleaning nozzle 41, and cleans the cleaning nozzle 41. As shown in FIG. 7, the nozzle cleaning section 43 is formed with a discharge port 431 as a through hole constituting a water discharge hole. The discharge port 431 discharges cleaning water to the upper surface of the cleaning nozzle 41. A plurality of such discharge ports 431 are formed. This allows the front side (upper side) of the cleaning nozzle 41 to be cleaned by the width of the cleaning nozzle 41. The nozzle cleaning section 43 is supplied with cleaning water from a hose 131a of a nozzle cleaning water circuit 131 described later. The nozzle cleaning section 43 discharges cleaning water of, for example, 2.0 / ml or more to powerfully clean the cleaning nozzle 41.

[0027] The shutter section 42 is connected to the nozzle unit 410, and is disposed at the center in the left-right direction X at the front part of the movable base section 31. The shutter section 42 opens and closes an opening section 33a formed on the front end side of the movable base section 31. The shutter section 42 has a shutter base 424, a shutter main body 421, a shutter arm 422, and a rotation shaft 423.

[0028] 6, the shutter base 424 is a plate-shaped member provided so as to cover the support frame 411 of the nozzle unit 410 and the upper part of the pair of cleaning nozzles 41. The shutter main body 421 is rotatably connected to the front end side of the shutter base 424.

[0029] The shutter arm 422 is disposed in front of the shutter base 424, and supports the shutter main body 421. The shutter arm 422 holds a rotation shaft 423 extending in the longitudinal direction of the shutter main body 421, and supports the shutter main body 421 so as to be freely rotatable.

[0030] As shown in FIG. 8, the shutter body 421 is formed in a plate shape extending in the left-right direction X of the toilet body 2. The shutter body 421 is disposed in the center of the left-right direction X on the front side of the base back convex part 34. As shown in FIG. 7, the shutter part 42 is formed in a planar shape with a downward slope from the front side to the rear side when it is located in the closed position. The shutter body 421 is supported rotatably. When the cleaning nozzle 41 advances and retreats, the back surface of the shutter body 421 is pressed by the cleaning nozzle 41, thereby opening and closing the opening part 33a of the front frame part 33 formed on the front end side of the movable base part 31. When the shutter body 421 is located in the closed position, it is disposed in the opening part 33a of the front frame part 33.

[0031] The shutter cleaning unit 44 is connected above the shutter unit 42 and cleans the shutter unit 42. The shutter cleaning unit 44 has a water discharger 441 (see FIG. 8), a receiver 442 (see FIG. 6), and a cleaning unit fixed part 443.

[0032] The water discharger 441 has a cleaning water circulating section 4411 and a plurality of water discharge ports 4412. The cleaning water circulating section 4411 is a cylindrical member extending in the left-right direction X at the upper front side of the functional section 3, and has a hollow section through which cleaning water circulates. As shown in Fig. 6, inlets 4411a, 4411b are formed at both ends of the cleaning water circulating section 4411, and are connected to hoses 132aR, 132aL of the shutter cleaning water circuit 132 described later. Cleaning water for shutter cleaning is supplied from the inlets 4411a, 4411b.

[0033] The multiple water discharge ports 4412 discharge wash water onto the front surface of the shutter section 42. The multiple water discharge ports 4412 are arranged on the lower surface of the wash water circulation section 4411 along the longitudinal direction at intervals from one another.

[0034] The receiving portion 442 is a member that connects the shutter portion 42 and the shutter cleaning portion 44. The receiving portion 442 engages with the rotation shaft 423 of the shutter portion 42, and the shutter body 421 and the shutter arm 422 are rotatably supported by the receiving portion 442. The back side of the receiving portion 442 abuts against the support frame 412 that constitutes the nozzle unit 410.

[0035] The cleaning unit fixed part 443 is provided integrally with the shutter cleaning unit 44 at a position closer to the center in the longitudinal direction of the shutter cleaning unit 44 than the inlets 4411a, 4411b of the cleaning water circulation part 4411 of the shutter cleaning unit 44. The cleaning unit fixed part 443 is fixed to the movable base part 31 with screws, whereby the shutter cleaning unit 44 is fixed to the movable base part 31.

[0036] In the above toilet apparatus 1, the functional unit 3 has a water circuit 100 that supplies flush water to each unit of the toilet apparatus, as shown in Figure 9. The water circuit 100 has a toilet flush water circuit 110, a body flush water circuit 120, and a functional unit flush water circuit .

[0037] The toilet flush water circuit 110 is a circuit that stores flush water supplied from the water supply source 9 in a toilet flush tank 111 and supplies the water into the bowl portion 20a of the toilet body 2 by a pump (not shown).

[0038] The body cleansing water circuit 120 is a flow path that supplies cleansing water from the water supply source 9 to the cleansing nozzle 41, and causes the cleansing water to be discharged from the cleansing nozzle 41 toward the human body and into the bowl portion 20a of the toilet body 2. The body cleansing water circuit 120 is composed of, for example, a rubber hose 121. As shown in FIG. 5, the hose 121 is routed from the rear of the shutter arm 422 along the outer periphery of the movable base portion 31 and is connected to the cleansing nozzle 41 located at the center of the movable base portion 31 in the left-right direction X.

[0039] The functional unit cleaning water circuit 130 is disposed on the base unit 30 of the functional unit 3, and is a flow path for cleaning the cleaning nozzle 41 and the shutter unit 42 of the sanitary cleaning device 4. As shown in Fig. 9, the functional unit cleaning water circuit 130 has a cleaning water supply path 133, a nozzle cleaning water circuit 131, a shutter cleaning water circuit 132 (a left shutter cleaning water circuit 132L and a right shutter cleaning water circuit 132R), and a drainage path 138. Of these, the nozzle cleaning water circuit 131 and the shutter cleaning water circuit 132 are the cleaning water circuit 1300 in this embodiment.

[0040] The functional section cleaning water circuit 130 includes a nozzle cleaning section 43, a shutter cleaning section 44, an electromagnetic valve 134, a pressure reducing valve 135, a vacuum breaker 136, and a switching valve 137, and performs each cleaning operation of the sanitary cleaning device 4.

[0041] The flow rate of cleaning water in the cleaning water supply passage 133 is greater than the flow rate of cleaning water in the human body cleaning water circuit 120. This makes it possible to clean the cleaning nozzle 41 and the shutter section 42 with a sufficient flow rate of cleaning water. The flow rates of cleaning water discharged from the nozzle cleaning section 43 and the shutter cleaning section 44 are each greater than the flow rate of cleaning water discharged from the cleaning nozzle 41. This makes it possible to clean the cleaning nozzle 41 with a sufficient flow rate of discharged water. The above-mentioned "flow rate" in each case means the instantaneous flow rate (flow rate per unit time).

[0042] That is, in the water circuit 100, the body cleansing water circuit 120, the toilet flushing water circuit 110, and the functional part flushing water circuit 130 are not opened and closed by a common water supply valve, but each water circuit has its own water supply valve that can be opened and closed independently. The functional part flushing water circuit 130 is configured to include a solenoid valve 134, but the human body cleansing water circuit 120 is provided with another water supply valve (a water supply valve for the flushing nozzle 41) that can be opened and closed independently of the solenoid valve 134.

[0043] The cleaning water supply path 133 is a flow path upstream of the functional portion cleaning water circuit 130 before it branches into the nozzle cleaning water circuit 131 and the shutter cleaning water circuit 132, and supplies cleaning water to the nozzle cleaning water circuit 131 and the shutter cleaning water circuit 132. The cleaning water supply path 133 has a hose 133a with a larger diameter than the nozzle cleaning water circuit 131 and the shutter cleaning water circuit 132, and is connected to a solenoid valve 134, a pressure reducing valve 135, a vacuum breaker 136, and a switching valve 137 in this order. The hose 133a of the cleaning water supply path 133 is arranged along the bottom surface of the fixed base portion 32. The cleaning water supply path 133 terminates at the switching valve 137.

[0044] The solenoid valve 134 opens and closes a flow path that supplies cleaning water from the water supply source 9 to the functional section cleaning water circuit 130. The pressure reducing valve 135 reduces the pressure to a level required for the flow path that provides the cleaning water to be supplied. As shown in Fig. 9, the switching valve 137 is a valve that switches the flow path that supplies cleaning water from the cleaning water supply path 133 to the nozzle cleaning water circuit 131 and the shutter cleaning water circuit 132 (the left shutter cleaning water circuit 132L and the right shutter cleaning water circuit 132R) of the cleaning water circuit 1300.

[0045] The vacuum breaker 136 prevents backflow of cleaning water in the nozzle cleaning water circuit 131 and the shutter cleaning water circuit 132 when negative pressure occurs in the cleaning water circuit 1300. By making the nozzle cleaning water circuit 131 and the shutter cleaning water circuit 132 into dedicated water circuits different from the human body cleaning water circuit 120, the flow rate of cleaning water used in nozzle cleaning and shutter cleaning can be increased to improve cleaning power. In this case, the diameter of the hose constituting each water circuit becomes large, and the vacuum breaker 136 also needs to be made larger. Therefore, the vacuum breaker 136 of the functional part cleaning water circuit 130 is disposed on the fixed base part 32 behind the rear end of the cleaning nozzle 41, as shown in FIG. 5.

[0046] Vacuum breaker 136 is positioned at the highest position among the components that make up flush water supply passage 133 and flush water circuit 1300. More specifically, vacuum breaker 136 is positioned at the highest position among solenoid valve 134, pressure reducing valve 135, changeover valve 137, and hoses 131a, 132aR, 132aL, which will be described later, that make up flush water supply passage 133 and flush water circuit 1300. As shown in FIG. 5, vacuum breaker 136 is connected to changeover valve 137 and positioned above changeover valve 137. As shown in FIG. 4, the upper surface of vacuum breaker 136 is positioned above the center of the axis of hinge parts 21a, 22a that connect toilet seat 21 or toilet lid 22 to functional part 3. The height H1 from the bottom surface of the base portion 30 to the top surface of the vacuum breaker 136 is higher than the height H2 from the bottom surface of the base portion 30 to the hinge portion 21a of the toilet seat 21 and the height H3 from the bottom surface of the base portion 30 to the hinge portion 22a of the toilet lid 22.

[0047] The drainage channel 138 is connected to the vacuum breaker 136. The drainage channel 138 is a drain hose 138a that drains backflowing water when backflow occurs in the flushing water circuit 1300 (the nozzle flushing water circuit 131 and / or the shutter flushing water circuit 132). As shown in FIG. 5, the drainage channel 138 passes over the hose 133a of the flushing water supply channel 133, and the downstream end is disposed on the rear surface of the fixed base portion 32. The drain hose 138a is connected to the toilet flushing tank 111 that is disposed below the base portion 30. As a result, when backflow occurs in the nozzle flushing water circuit 131 and the shutter flushing water circuit 132, the water that has backflowed from the vacuum breaker 136 to the toilet flushing tank 111 is drained.

[0048] The nozzle cleaning water circuit 131 and the shutter cleaning water circuit 132 are formed, for example, from rubber hoses, and form a water circuit different from the human body cleaning water circuit 120 that spouts water toward the human body from the nozzle water outlet 41a of the cleaning nozzle 41. The nozzle cleaning water circuit 131 forms a dedicated water circuit that supplies cleaning water only to the nozzle cleaning unit 43. The shutter cleaning water circuit 132 forms a dedicated water circuit that supplies cleaning water only to the shutter cleaning unit 44. This allows cleaning by the nozzle cleaning unit 43 to be performed simultaneously with the cleaning operation of the cleaning nozzle 41 without reducing the flow rate of each. It is possible to perform nozzle cleaning first and shutter cleaning later, and this makes it possible to wash away dirt generated during nozzle cleaning to the outside of the functional unit 3 by the shutter cleaning.

[0049] The nozzle cleaning water circuit 131 has a hose 131a extending from the switching valve 137 of the fixed base part 32, and after being routed to the right side in Figure 5, extends forward of the movable base part 31 and is connected to the nozzle cleaning part 43 arranged at the front end of the cleaning nozzle 41.

[0050] The shutter cleaning water circuit 132 has a shutter cleaning right water circuit 132R that supplies cleaning water from the right side of the shutter cleaning section 44, and a shutter cleaning left water circuit 132L that supplies cleaning water from the left side of the shutter cleaning section 44.

[0051] The shutter cleaning right water circuit 132R has a hose 132aR. The hose 132aR extends from the switching valve 137 of the fixed base part 32, is routed to the right side in FIG. 5, then extends to the front of the movable base part 31 adjacent to the hose 131a, and is connected to the inlet 4411a of the shutter cleaning part 44.

[0052] The shutter cleaning left water circuit 132L has a hose 132aL. The hose 132aL extends from the switching valve 137 of the fixed base part 32, passes over the nozzle unit 410, is routed to the left side in FIG. 5, extends forward of the movable base part 31, and is connected to the inlet 4411b of the shutter cleaning part 44.

[0053] According to this embodiment, the following effects are achieved. The toilet device 1 is configured to include a functional part 3 arranged at the rear of the toilet body 2, a base part 30 on which each component constituting the functional part 3 is arranged, a flushing nozzle 41 arranged at the front of the functional part 3 and spouting flushing water for washing the human body, a flushing water circuit 1300 that supplies flushing water on the base part 30, and a vacuum breaker 136 that prevents backflow of the flushing water circuit 1300 and is arranged behind the rear end of the flushing nozzle 41. By arranging the vacuum breaker 136 behind the rear end of the flushing nozzle 41, the flow rate of the flushing water circuit increases, and even if the vacuum breaker 136 is enlarged, it is possible to easily arrange it in the layout. It is possible to secure space in which other components can be arranged near or in front of the flushing nozzle 41 arranged at the front side of the functional part 3, improving the freedom of design.

[0054] According to this embodiment, the upper surface of the vacuum breaker 136 is positioned above the center of the axis of the hinge part 21a that rotatably connects the toilet seat 21 and the functional part 3 arranged on the upper surface of the toilet body 2. The upper surface of the toilet device 1 is configured to be gently inclined upward from the front side toward the rear of the functional part 3, and the design of the external shape of the upper surface of the toilet device 1 can be improved. By arranging the vacuum breaker 136 behind the hinge part 21a and making the upper surface of the vacuum breaker 136 higher than the center of the axis of the hinge part 21a, the space behind the functional part 3 can be expanded in the vertical direction as well. Therefore, the vacuum breaker 136 can be made larger, and the flow rate of flush water supplied to the flush water circuit 1300 (the nozzle flush water circuit 131 and the shutter flush water circuit 132) in which the vacuum breaker 136 is arranged can be increased.

[0055] According to this embodiment, the functional section 3 is configured to include a cleaning water supply path 133 that supplies cleaning water to the cleaning water circuit 1300 (the nozzle cleaning water circuit 131 and the shutter cleaning water circuit 132). The vacuum breaker 136 is disposed at the highest position among the components (the solenoid valve 134, the pressure reducing valve 135, the switching valve 137, and the hoses 131a, 132aR, 132aL) that configure the cleaning water supply path 133 and the cleaning water circuit 1300. This makes it difficult for backflow itself to occur in the cleaning water supply path 133 and the cleaning water circuit 1300.

[0056] According to this embodiment, the base part 30 is configured to include a movable base part 31 that can move up and down, and a fixed base part 32 that is fixed to the toilet body 2. The vacuum breaker 136 is disposed on the fixed base part 32. If the amount of flushing water supplied to the nozzle cleaning water circuit 131 and the shutter cleaning water circuit 132 is increased, the vacuum breaker 136 becomes larger. However, by disposing the vacuum breaker 136 on the fixed base part 32, even if the weight of the vacuum breaker 136 increases, it does not affect the movement of the movable base part 31, such as the lifting and lowering movement. Even a large vacuum breaker 136 can be stably supported.

[0057] According to this embodiment, the toilet is further configured to include a toilet flush tank 111 that stores toilet flush water for flushing the toilet body 2. The functional unit 3 is configured to include a drainage channel 138 that drains water that has backflowed from the vacuum breaker 136 to the toilet flush tank 111 when backflow occurs in the flush water circuit 1300. By draining the water in the event of backflow into the toilet flush tank 111 via the drainage channel 138, the backflowed water can be used for flushing the toilet. Thus, the water supplied from the water supply source 9 can be used efficiently.

[0058] According to this embodiment, the functional unit 3 is configured to further include a switching valve 137 that switches the water circuits of the nozzle cleaning water circuit 131 and the shutter cleaning water circuit 132 that configure the cleaning water circuit 1300. The vacuum breaker 136 is disposed above the switching valve 137. When attempting to raise the position of the vacuum breaker 136, the switching valve 137 can support the vacuum breaker 136 by disposing it above the switching valve 137 without providing a support member or the like. This reduces the number of parts and enables the components to be laid out efficiently on the base unit 30.

[0059] The present disclosure is not limited to the above-described embodiment, and includes modifications, improvements, etc. within the scope of achieving the object of the present disclosure. For example, in the above-described embodiment, the base portion 30 is divided into the fixed base portion 32 and the movable base portion 31, but it does not have to be divided.

[0060] In the above embodiment, the nozzle cleaning water circuit 131 and the shutter cleaning water circuit 132 (the left shutter cleaning water circuit 132L and the right shutter cleaning water circuit 132R) have been described as examples of the cleaning water circuit 1300. However, in cases such as when a large volume of water is supplied to the human body cleaning water circuit for human body cleaning, the cleaning water circuit 1300 may be configured as a human body cleaning water circuit for human body cleaning, and the present invention may be applied to a vacuum breaker arranged in the human body cleaning water circuit.

[0061] In the above embodiment, the movable base part 31 moves up and down vertically, but as long as the movable base part 31 is movable up and down, it does not have to move up and down. For example, the movable base part 31 may be configured to rotate so that the front end side of the movable base part 31 moves up and down to open and close. Also, in the above embodiment, the movable base part 31 moves by operating a lever, but it may be configured to move electrically. [Explanation of symbols]

[0062] 1 toilet device, 2 toilet body, 3 functional part, 21 toilet seat, 21a hinge part, 30 base part, 31 movable base part, 32 fixed base part, 41 flush nozzle (nozzle), 42 shutter part, 43 nozzle flush part, 44 shutter flush part, 111 toilet flush tank, 131 nozzle flush water circuit, 131a hose (part constituting nozzle flush water circuit), 132 shutter flush water circuit, 133 flush water supply path, 134 solenoid valve (part constituting flush water supply path), 135 pressure reducing valve (part constituting flush water supply path), 136 vacuum breaker, 137 switching valve (part constituting flush water supply path), 138 drainage path, 132aR hose (part constituting shutter flush water circuit), 132aL Hose (a component that constitutes the shutter cleaning water circuit)

Claims

1. A functional part disposed at the rear of the toilet body; a base portion on which components constituting the functional portion are disposed; A nozzle disposed in front of the functional unit and configured to discharge wash water for washing a human body; a cleaning water circuit for supplying cleaning water on the base portion; a vacuum breaker that prevents backflow in the flushing water circuit and is positioned rearward of the rear end of the nozzle.

2. The toilet apparatus according to claim 1, wherein an upper surface of the vacuum breaker is located above a center of an axis of a hinge part that rotatably connects a toilet seat arranged on the upper surface of the toilet body and the functional part.

3. the functional portion has a cleaning water supply passage for supplying cleaning water to the cleaning water circuit, 3. The toilet apparatus according to claim 1, wherein the vacuum breaker is disposed at the highest position among the components that constitute the flush water supply passage and the flush water circuit.

4. The base portion includes a movable base portion that is movable up and down; A fixed base portion fixed to the toilet body, 3. The toilet apparatus according to claim 1 or 2, wherein the vacuum breaker is arranged on the fixed base part.

5. The toilet further includes a toilet flush tank for storing toilet flush water for flushing the toilet body, 3. The toilet apparatus according to claim 1, wherein the functional portion has a drainage path for draining water that has flowed back from the vacuum breaker to the toilet flushing tank when backflow occurs in the flush water circuit.

6. The functional unit further includes a switching valve for switching a flow path of the cleaning water circuit, 3. The toilet apparatus according to claim 1, wherein the vacuum breaker is disposed above the switching valve.

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