JP2014077313A - Toilet bowl device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a toilet bowl device which simplifies a configuration in comparison with the case where a power source which allows a functional liquid to flow into a supply port is provided, and is capable of adjusting the timing or the quantity of the functional liquid to be supplied.SOLUTION: The toilet bowl device comprises a flow passage 10 for discharging water from a discharge port into a bowl, and a supply path 20 for supplying a functional liquid 30 to water flowing in the flow passage 10. The flow passage 10 is confluent with the supply path 20 in a narrowed part 13 which includes an opening 17 on the circumferential surface thereof. The supply path 20 includes a liquid reservoir 21 formed from a sealed container, and a connection part 25 for connecting the liquid reservoir 21 to the flow passage 10. The connection part 25 includes an elastic member 27 provided with a slit-shaped through hole 28 which is opened/closed in accordance with a pressure change in the narrowed part 13. The through hole 28 is disposed within the opening 17 as a supply port 26. An air supply path 50 which allows air to flow into the flow passage 10 is provided while being confluent in the narrowed part 13 with a gap between an outer surface of the elastic member 27 in the through hole 28 and an edge of the opening 17 as an inflow port 51. In the air supply path 50, an on-off valve 52 is provided which is capable of freely adjusting an opening amount.

Description

  The present invention relates to a toilet apparatus that performs cleaning by mixing a functional liquid with water.

  Patent Document 1 discloses a flush toilet that performs washing by mixing a chemical with washing water for washing a bowl. This flush toilet includes a washing water passage through which washing water discharged into the bowl flows, and a supply path for supplying a chemical to the washing water passage. The washing water flow path has a small diameter part with a narrowed path diameter, and a negative pressure is generated inside the small diameter part as the washing water flows. In this supply path, a supply port for supplying a drug to the washing water flow path communicates with the small path, and this supply port is opened when the negative pressure is generated to supply the drug to the small diameter portion.

JP 2008-163742 A

  By the way, in the flush toilet of Patent Document 1 or the like, since the storage part storing the medicine is disposed below the small diameter part, a power source for medicine flow such as a pump is provided in the supply flow path. For this reason, in the flush toilet, the medicine is introduced into the supply port by flowing (pumping) the medicine by the power source. In addition, the power source causes the medicine to flow, so that the medicine inside the body coagulates and becomes difficult to operate because it is not used for a long period of time, the life of the member is shortened, and it is easy to deteriorate. There is. For this reason, in this flush toilet, when a power source fails, there exists a problem that it becomes difficult to supply a liquid chemical | medical agent to the said small diameter part at the time of opening of the said supply port. In addition, since the power source is a part of the supply path, the water washing apparatus has a problem that it is difficult to repair the power source or perform maintenance and inspection.

  Therefore, in view of the above circumstances, the present invention provides a toilet device that has a simpler configuration than that provided with a power source that causes the functional liquid to flow to the supply port, and that can adjust the supply timing and supply amount of the functional liquid. The challenge is to propose.

  In order to solve the above-described problems, the present invention supplies a functional liquid to a bowl, a flow path for discharging supplied water from the discharge port to the bowl, and the water that joins the flow path and flows through the flow path. A supply path, the flow path has a venturi-shaped throttle portion at a junction with the supply path, and the supply path includes a liquid storage section for storing the functional liquid, and the liquid storage section. A connection portion connected to the flow path, the connection portion includes an elastic member having a slit-like through hole that opens and closes due to a pressure change of the throttle portion, and the liquid storage portion is formed of a sealed container, An opening is provided in the peripheral surface of the throttle portion, the through hole is disposed as a supply port for supplying the functional liquid to the flow path, and the air supply path for allowing air to flow into the flow path is provided. It is provided so as to join the throttle part, and the air flows to the throttle part of the air supply path. The inflow port to be formed is a gap between an outer surface of a portion of the elastic member forming the through hole and an edge of the opening of the throttle portion, and an opening amount of the air supply path is set in the air supply path. An adjustable on-off valve is provided.

  Since the present invention has the above-described configuration, the supply path can be switched between open and closed by opening and closing the open / close valve. As a result, the present invention can simplify the configuration as compared with a case where a power source for flowing the functional liquid to the supply port is provided. In the present invention, the supply timing and supply amount of the functional fluid can be adjusted / changed by adjusting / changing the opening / closing and opening amount of the air supply path with the opening / closing valve.

It is sectional drawing of the supply path periphery of a toilet device. It is an enlarged view of the area | region E1 of FIG. The operation | movement explanatory drawing of an on-off valve is shown, (a) is a closed state, (b) is an open state. The whole toilet device is shown, (a) is a perspective view, (b) is sectional drawing which simplified one part.

  Hereinafter, the present invention will be described with reference to the accompanying drawings. The toilet device 1 of the present embodiment is a chair-type toilet, which is used by a user and is a so-called Western-style toilet. As shown in FIG. 4, the toilet device 1 includes a toilet body 2, a toilet seat (not shown), and a toilet lid 5. The toilet body 2 has an outer shell 2a formed of a bowl 3 and a skirt 4 covering the outer periphery thereof. The toilet body 2 is fixed to a floor surface of a toilet, for example. The toilet seat and the toilet lid 5 are placed on the toilet body 2. The toilet seat and toilet lid 5 are pivotally supported at one end on the toilet body 2.

  In the toilet body 2, a flow path 10 for supplying water to the bowl 3, a drainage path 6 for discharging the water in the bowl 3, and a supply path 20 for supplying the functional liquid 30 to the water flowing through the flow path 10 are provided. Prepare.

  The drainage path 6 includes a cylindrical part 7 protruding outward from the lower part of the bowl 3, a trap 8 provided at the downstream end of the cylindrical part 7, and a discharge part (not shown) connected to an external drain pipe (not shown). With. And the drainage path 6 flows the water etc. in the bowl 3 from the cylinder part 7 through the trap 8 to the said discharge part, and is discharged | emitted from this discharge part to the said drain pipe. In this example, the trap 8 is a so-called rotational type that can be switched between a sealed state (the state shown in FIG. 2) and a drained state, but is always connected to the so-called siphon type discharge pipe. It may be a fixed type.

  The upstream end of the flow path 10 protrudes outward from the toilet body 2. The upstream end is connected to an external water pipe (not shown), and the water flows into the flow path 10 from the water pipe due to water pressure. The downstream end of the flow path 10 is disposed at the upper end of the bowl 3 and is provided facing the bowl 3. And this downstream end discharges the water which flowed into the flow path 10 from the water pipe into the bowl 3. For this reason, the downstream end of the flow path 10 is a discharge outlet for cleaning the bowl 3.

  Further, a water supply valve 12 for opening and closing the flow path 10 is provided in the middle of the flow path 10. The flow path 10 is in a water flow state by opening the water supply valve 12, and is in a water stop state by closing the water supply valve 12. In other words, in the flow path 10, the water discharge to the bowl 3 and the water stoppage are switched by opening and closing the water supply valve 12.

  Further, the flow path 10 has a throttle portion 13 on the downstream side of the water supply valve 12. The flow channel 10 has the discharge port on the downstream side of the throttle portion 13. In other words, the throttle unit 13 is located between the part of the flow path 10 where the water supply valve 12 is provided and the discharge port. For example, as shown in FIG. 1, water flows substantially horizontally in the throttle unit 13. In other words, the direction of water flow in the throttle 13 is substantially horizontal.

  Hereinafter, the flow direction of the water is simply referred to as the flow direction F, the direction perpendicular to the horizontal plane with respect to the flow direction F is defined as the vertical direction V, and the direction orthogonal to both the flow direction F and the vertical direction V ( The width direction is defined as a direction perpendicular to the flow direction F on the horizontal plane. A state viewed in the flow direction F is a front view, and a state viewed in the vertical direction V is a plan view.

  The throttling portion 13 is formed of a tube member having an axial center along the flow direction F, and the tube member has a Venturi shape. This Venturi tube has, for example, a shape in which at least a part of the tube has a smaller diameter than the upstream side in the flow direction F. For this reason, when the said water flows through the site | part with a small diameter, the throttle part 13 can produce a negative pressure in this site | part with a small diameter. In other words, the throttle portion 13 includes a reduced diameter portion 16 having a smaller diameter than the upstream side in the flow direction F.

  In addition, the narrowed portion 13 of the present example includes an enlarged diameter portion 15 having a larger diameter than the reduced diameter portion 16 on the downstream side of the reduced diameter portion 16 (the small diameter portion). It is substantially the same diameter as a portion upstream of the portion 16 (large diameter portion 14). In other words, the throttle portion 13 of this example includes a large diameter portion 14, a reduced diameter portion 16, and an enlarged diameter portion 15, and in the flow direction F, the diameter of the flow channel 10 is once narrowed in the middle of the flow channel 10. After that, the shape returns to the original diameter (expands the diameter).

  The large diameter portion 14 is provided with a suction path 9 for forming fine bubbles. One end of the suction path 9 is open to the outside, and the other end is in communication with and connected to the large diameter portion 14. The suction path 9 supplies air to the water at the large diameter portion 14. For this reason, the water flowing through the throttle portion 13 is mixed with air supplied from the suction path 9 as bubbles in the large diameter portion 14. And the said bubble turns into a fine bubble, for example, when the said water flows into the enlarged diameter part 15, and is subdivided by the enlarged diameter part 15. FIG.

  As shown in FIG. 2, the reduced diameter portion 16 is provided with an opening 17 on the upper peripheral surface. The opening 17 penetrates in the vertical direction V and is open, and is located at the approximate center in the width direction of the reduced diameter portion 16 in plan view. The opening 17 is formed in a rectangular shape in plan view, and is elongated along the flow direction F. A supply path 20 is connected to the opening 17. In other words, the supply path 20 joins the throttle portion 13 (the reduced diameter portion 16) at the opening portion 17.

  As shown in FIG. 1, the supply path 20 includes a liquid storage unit 21 that stores the functional liquid 30 and a connection unit 25 that connects the liquid storage unit 21 to the flow path 10. The supply path 20 is disposed above the throttle unit 13. Specifically, the connection part 25 is provided above the reduced diameter part 16, and the liquid storage part 21 is provided above the connection part 25.

  The liquid storage part 21 has a container shape capable of storing the functional liquid 30 therein. A lid member 23 is detachably attached to the upper part of the liquid reservoir 21. And the liquid storage part 21 is sealed inside by attaching the lid member 23. In other words, the liquid storage part 21 is formed of a container 22 (sealed container) that can be sealed.

  The lid member 23 can be removed from the container 22 by removing a cover (not shown) provided on the outer shell 2 a of the toilet body 2. And the liquid storage part 21 can replenish the functional liquid 30 inside the container 22 by removing the cover member 23. Examples of the functional liquid 30 stored in the liquid storage unit 21 include a water-soluble liquid such as a detergent liquid containing a surfactant and a liquid fragrance.

  A supply cylinder 24 is provided on the lower surface of the container 22. The supply cylinder 24 protrudes downward from the lower surface of the container 22. The lower end portion of the supply tube 24 is attached to the upper end portion of the connection portion 25, and the container 22 and the connection portion 25 are connected to each other via the supply tube 24. And the liquid storage part 21 introduce | transduces the functional liquid 30 into the connection part 25 by making the functional liquid 30 flow to the connection part 25 located below with the dead weight of the functional liquid 30. FIG.

  As shown in FIG. 2, the lower end of the connection portion 25 is a supply port 26 that supplies the functional liquid 30 to the flow path 10, and the supply port 26 is disposed inside the opening 17. The supply port 26 is formed of an elastic member 27. The supply port 26 allows dripping of the functional liquid 30 into the flow path 10 due to its own weight, inflow of the water flowing through the flow path 10 into the supply path 20, and the like. Suppressed.

  Specifically, the elastic member 27 has a hollow and flat pyramid shape whose diameter decreases toward the lower side. The elastic member 27 communicates with the supply cylinder 24 at the upper end side of the pyramid, and the functional liquid 30 is introduced from the supply cylinder 24 into the pyramid. Further, the lower end portion of the pyramid of the elastic member 27 has a rectangular shape in plan view that is long in the flow direction F, and is located inside the opening 17. The elastic member 27 has a slit-like through hole 28 along the flow direction F at the lower end, and the connecting portion 25 communicates with the flow path 10 through the through hole 28. For this reason, the through hole 28 serves as the supply port 26.

  The through hole 28 is opened when the water flows through the flow path 10 and the throttle portion 13 becomes a predetermined negative pressure or higher. The through-hole 28 is closed when the flow of water is weakened or the water stops, and the like becomes less than a predetermined negative pressure (returns to the positive pressure side). Further, when the through hole 28 is closed, a gap 40 is formed between the outer surface of the lower end portion of the elastic member 27 (the outer surface of the portion where the through hole 28 is formed) and the edge of the opening 17. Thus, the elastic member 27 is a so-called duckbill type check valve, and opens and closes due to a pressure change of the throttle portion 13.

  The air supply path 50 joins the flow path 10 via the gap 40. The air supply path 50 supplies air into the throttle unit 13 through the gap 40 when the negative pressure is generated in the throttle unit 13. In other words, the air supply path 50 has an inflow port 51 for allowing air to flow into the flow path 10, and the inflow port 51 is formed between the outer peripheral surface of the portion where the through hole 28 of the elastic member 27 is formed and the opening 17. A gap 40 is formed between the edges.

  Further, as shown in FIG. 1, the air supply path 50 is provided with an on-off valve 52 that can adjust the opening amount of the air supply path 50. As shown in FIG. 3, the on-off valve 52 can be switched between an open state in which the air supply path 50 is opened and a closed state in which the air supply path 50 is closed. The on-off valve 52 can adjust / change the opening amount of the air supply path 50 in the opened state.

  For example, the on-off valve 52 includes a valve body 53 that closes the air supply path 50. The valve body 53 has a rotation shaft 53a in a direction (in this example, the width direction) substantially orthogonal to the air flow direction of the air supply path 50. And the valve body 53 opens and closes the air supply flow path 10 by rotating around the axis of the rotating shaft 53a. Further, the valve body 53 can adjust / change the opening amount of the air supply path 50 according to the rotation angle at the time of rotation.

  Thereby, the air supply path 50 can adjust and change the air supply amount to the flow path 10. Specifically, the air supply amount decreases as the opening amount of the on-off valve 52 is decreased. And the toilet device 1 can reduce the said negative pressure added to the supply port 26 by supplying the flow path 10 from the air supply path 50 at the time of generation | occurrence | production of the said negative pressure. For this reason, when the negative pressure is generated, the negative pressure can be easily applied to the supply port 26. In other words, the toilet device 1 can adjust the negative pressure applied to the supply port 26 by opening / closing the air supply path 50 (supplying air to the flow path 10 and stopping it) and the opening amount (air supply amount). .

  Further, the on-off valve 52 can reduce the negative pressure to the minimum when the negative pressure is generated with the maximum opening amount. For this reason, in this case, the supply port 26 maintains the closed state without switching to the open state. When the negative pressure is generated in a state where the opening / closing valve 52 is opened or closed at a predetermined opening amount or less, the negative pressure that can be opened is applied to the supply port 26. For this reason, in this case, the supply port 26 is switched to the open state. Further, when the opening / closing valve 52 is opened beyond the predetermined opening amount when the supply port 26 is in the open state, the supply port 26 is switched to the closed state. Note that the condition for switching the supply port 26 to the open state depending on the opening amount of the on-off valve 52 may be only the state in which the on-off valve 52 is closed.

  The on-off valve 52 has, for example, a stepping motor (not shown) as a power source, and is opened and closed by this stepping motor. The stepping motor has its rotation start / stop and rotation angle controlled by a control unit 54 such as an electronic circuit. For this reason, the opening / closing valve 52 is switched by the control unit 54, and the opening / closing amount is adjusted / changed. In other words, the control unit 54 controls switching between opening and closing of the on-off valve 52 and adjustment / change of the opening amount through the power source.

  Here, an example of control by the control unit 54 will be described. In the following description, the water discharged from the flow path 10 is the first mode in the first half of the discharge, and the water discharge in the first mode is continued for a predetermined time (after a predetermined time has elapsed from the start of water discharge). The state in the latter half of the discharge is referred to as a second mode. For example, the first mode is a cleaning mode in which the bowl 3 is cleaned by flowing filth into the drainage path 6, and the second mode is a reservoir for storing water in the bowl 3 after the first mode. Make it for water. Further, the on-off valve 52 is in a closed state, for example, in a state before water flow into the flow path 10 is started (water stop state), and this state is set as an initial state.

  First, when water flow to the flow path 10 is started, the control unit 54 performs control to open the on-off valve 52 with an opening amount exceeding a predetermined opening amount or a maximum opening amount, and the supply port 26 due to the negative pressure. Suppresses the development of The on-off valve 52 maintains this state (the opening amount) during the first mode. For this reason, the water is discharged into the bowl 3 in the first mode, including fine bubbles (air from the suction path 9) and not including the functional liquid 30.

  Next, the control unit 54 controls to change the opening amount of the on-off valve 52 to a predetermined opening amount or less when switching from the first mode to the second mode (after the predetermined time has elapsed since the start of water discharge). Control for closing 52 is performed, and the supply port 26 is opened by the negative pressure. The on-off valve 52 maintains this state during the second mode. For this reason, in the said 2nd aspect, the said water is discharged to the bowl 3 in the state containing the fine bubble and the functional liquid 30. FIG.

  When the flow path 10 is stopped (water flow is completed), the control unit 54 sets the on-off valve 52 to an initial state (closed state) when the on-off valve 52 is opened at a predetermined opening amount or less. Control to switch to.

  The liquid storage unit 21 further includes a pressure adjustment unit (not shown). The pressure adjusting unit includes, for example, a barometer (not shown) that detects the internal pressure (internal pressure) of the container 22 and an adjustment valve (not shown) that opens and closes according to the detection result of the barometer to adjust the internal pressure. And formed. And the said pressure adjustment part hold | maintains the internal pressure of the container 22 which fluctuates by the reduction | decrease of the functional liquid 30 by adjustment of the said internal pressure substantially constant. For this reason, the toilet device 1 can make it difficult for the internal pressure of the container 22 to fluctuate when the functional liquid 30 is supplied. In other words, the toilet device 1 can make it difficult to reduce the internal pressure of the container 22 when the amount of storage in the liquid storage unit 21 is reduced by the pressure adjusting unit.

  As described above, the supply path 20 uses the liquid storage part 21 as a sealed container, so that the supply port 26 can be provided without providing a power source such as a pump for causing the functional liquid 30 to flow from the liquid storage part 21 to the supply port 26. When the (through hole 28) is opened, the functional liquid 30 can be easily supplied to the supply port 26. And the toilet device 1 can change the opening and closing of the supply port 26 by the on-off valve 52, so that the failure is less likely to occur as compared with a pump that flows the functional liquid 30 as a power source for opening and closing the supply port 26. Things can be easily repaired and things can be easily applied. In other words, the toilet apparatus 1 has a simplified configuration of the supply path 20 and the like compared to the case where a power source such as a pump that causes the functional liquid 30 to flow into the supply port 26 and opens the supply port 26 is provided in the supply path 20. can do.

  Furthermore, the toilet device 1 can adjust / change the timing (timing) of supplying the functional liquid 30 to the water by making the negative pressure applied to the supply port 26 adjustable by the on-off valve 52. Then, the toilet device 1 adjusts and changes the time, for example, when supplying the functional liquid 30 to both of the two modes (always), and to the functional liquid only in one of the two modes. 30 can be selected and switched.

  For this reason, for example, when the functional liquid 30 is a fragrance or a detergent liquid, the toilet apparatus 1 supplies the functional liquid 30 only to the second mode, thereby cleaning the bowl 3 with the water without the functional liquid 30. The water stored in the bowl 3 can be performed with the water having the functional liquid 30. As a result, the toilet device 1 suppresses the consumption of the functional liquid 30 as compared with the case where the functional liquid 30 is supplied to the first mode in which the function of the functional liquid 30 is difficult to be exhibited (saving the functional liquid 30). ), The function of the functional liquid 30 can be exhibited during the water storage.

  In other words, when the functional liquid 30 is effective in a predetermined state (mode) at the time of discharging the water, the toilet device 1 can easily improve the effect per consumption amount of the functional liquid 30. it can. The classification of the modes at the time of water discharge is not limited to the two modes described above, and may be classified according to the rotation of the trap 8, for example, or may be classified into three or more modes. .

  Further, the toilet device 1 is provided with the pressure adjusting part in the liquid storage part 21, thereby affecting the fluctuation of the internal pressure (the remaining amount of the functional liquid 30) on the negative pressure condition for opening the through hole 28. Can be difficult. For this reason, the toilet apparatus 1 can set the negative pressure condition for opening the through hole 28 to a substantially constant condition, for example, and can stably open the through hole 28 when the negative pressure is generated. Can be made easier. Accordingly, the toilet device 1 can easily supply the functional liquid 30 stably.

  Note that the present invention is not limited to the configuration of the above-described embodiment, and appropriate design changes can be made within the range intended by the present invention. For example, the toilet device 1 is not limited to one using the stepping motor as a power source, and may be one using a solenoid or the like as a power source. Further, for example, the toilet device 1 may include an operation unit for operating opening / closing of the on-off valve 52 and adjustment / change of the opening amount. Further, for example, the toilet device 1 may be one that does not include the inhalation route 9 or one that does not include the pressure adjusting unit. Further, for example, the toilet device 1 may be capable of bringing the internal pressure close to atmospheric pressure or the like by the pressure adjusting unit. In this case, when the lid member 23 is removed, the lid member 23 can be easily removed by bringing the internal pressure close to atmospheric pressure or the like.

  For example, the container 22 may be formed of a flexible bag. In this case, the container 22 (the bag body) is deformed so as to be crushed (or deflated) in accordance with the decrease (consumption) of the functional liquid 30 in the container 22, and the internal space (volume) of the container 22 is reduced. Let In other words, in this case, the volume of the container 22 can be made different between the functional liquid full state and the functional liquid reduced state in which the functional liquid is consumed from the functional liquid full state.

  For this reason, the container 22 can make it easy to keep the internal pressure substantially constant, for example, in the functional fluid full state and the functional fluid reduced state. In other words, the container 22 has a function as the pressure adjusting unit. The container 22 is preferably detachable from the connecting portion 25. In this case, when the functional liquid 30 in the container 22 is reduced and the functional liquid replenishment state that requires replenishment of the functional liquid 30 is reached, the liquid reservoir is replaced by replacing the container 22 with a new one. 21 can be easily replenished with the functional liquid 30.

  Further, the container 22 can be made difficult to deform by providing a rigidity imparting member for imparting rigidity to a linear part passing through the axis of the supply cylinder 24 of the bag body. For this reason, the container 22 can suppress that the supply of the functional liquid 30 to the supply cylinder 24 becomes difficult due to the deformation of this portion. Accordingly, the container 22 can easily reduce the residual amount of the functional liquid 30 when the functional liquid is in the replenishment state. When the container 22 is detachable, the container 22 is not limited to be detachable from the connection portion 25 but may be detachable from the supply tube 24.

DESCRIPTION OF SYMBOLS 1 Toilet device 2 Toilet body 3 Bowl 6 Drainage path 9 Intake path 10 Flow path 11 Discharge port 12 Water supply valve 13 Throttle part 17 Opening part 20 Supply path 21 Liquid storage part 22 Container 25 Connection part 26 Supply port 27 Elastic member 28 Through hole 30 Functional liquid 40 Clearance 50 Air supply path 51 Inlet 52 On-off valve F Flow direction V Vertical direction

Claims (1)

A bowl, a flow path for discharging supplied water from the discharge port to the bowl, and a supply path for supplying the functional liquid to the water that joins the flow path and flows through the flow path,
The flow path has a venturi-shaped throttle portion at a confluence site with the supply path,
The supply path includes a liquid storage unit that stores the functional liquid, and a connection unit that connects the liquid storage unit to the flow path,
The connecting portion includes an elastic member having a slit-like through hole that opens and closes due to a pressure change of the throttle portion,
Forming the liquid reservoir in a sealed container;
An opening is provided on the peripheral surface of the diaphragm,
The through hole is disposed in the opening as a supply port for supplying the functional liquid to the flow path,
An air supply path for allowing air to flow into the flow path is provided to join the throttle portion,
The inflow port through which the air flows into the throttle portion of the air supply path is a gap between an outer surface of a portion of the elastic member forming the through hole and an edge of the opening of the throttle portion;
A toilet apparatus, wherein an opening / closing valve capable of adjusting an opening amount of the air supply path is provided in the air supply path.

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