WO2004057118A1 - 排水弁装置と排水装置並びに便器 - Google Patents
排水弁装置と排水装置並びに便器 Download PDFInfo
- Publication number
- WO2004057118A1 WO2004057118A1 PCT/JP2002/013326 JP0213326W WO2004057118A1 WO 2004057118 A1 WO2004057118 A1 WO 2004057118A1 JP 0213326 W JP0213326 W JP 0213326W WO 2004057118 A1 WO2004057118 A1 WO 2004057118A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- water
- tank
- hole
- sleeve
- float
- Prior art date
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
- E03D1/00—Water flushing devices with cisterns ; Setting up a range of flushing devices or water-closets; Combinations of several flushing devices
- E03D1/30—Valves for high or low level cisterns; Their arrangement ; Flushing mechanisms in the cistern, optionally with provisions for a pre-or a post- flushing and for cutting off the flushing mechanism in case of leakage
- E03D1/34—Flushing valves for outlets; Arrangement of outlet valves
- E03D1/35—Flushing valves having buoyancy
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
- E03D1/00—Water flushing devices with cisterns ; Setting up a range of flushing devices or water-closets; Combinations of several flushing devices
- E03D1/01—Shape or selection of material for flushing cisterns
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
- E03D1/00—Water flushing devices with cisterns ; Setting up a range of flushing devices or water-closets; Combinations of several flushing devices
- E03D1/24—Low-level flushing systems
- E03D1/28—Bowl integral with the flushing cistern
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
- E03D1/00—Water flushing devices with cisterns ; Setting up a range of flushing devices or water-closets; Combinations of several flushing devices
- E03D1/30—Valves for high or low level cisterns; Their arrangement ; Flushing mechanisms in the cistern, optionally with provisions for a pre-or a post- flushing and for cutting off the flushing mechanism in case of leakage
- E03D1/302—Valves for high or low level cisterns; Their arrangement ; Flushing mechanisms in the cistern, optionally with provisions for a pre-or a post- flushing and for cutting off the flushing mechanism in case of leakage with valves kept in open position by means of air or water pressure or by vacuum
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
- E03D1/00—Water flushing devices with cisterns ; Setting up a range of flushing devices or water-closets; Combinations of several flushing devices
- E03D1/30—Valves for high or low level cisterns; Their arrangement ; Flushing mechanisms in the cistern, optionally with provisions for a pre-or a post- flushing and for cutting off the flushing mechanism in case of leakage
- E03D1/304—Valves for high or low level cisterns; Their arrangement ; Flushing mechanisms in the cistern, optionally with provisions for a pre-or a post- flushing and for cutting off the flushing mechanism in case of leakage with valves with own buoyancy
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
- E03D1/00—Water flushing devices with cisterns ; Setting up a range of flushing devices or water-closets; Combinations of several flushing devices
- E03D1/30—Valves for high or low level cisterns; Their arrangement ; Flushing mechanisms in the cistern, optionally with provisions for a pre-or a post- flushing and for cutting off the flushing mechanism in case of leakage
- E03D1/308—Valves for high or low level cisterns; Their arrangement ; Flushing mechanisms in the cistern, optionally with provisions for a pre-or a post- flushing and for cutting off the flushing mechanism in case of leakage with articulated valves
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
- E03D11/00—Other component parts of water-closets, e.g. noise-reducing means in the flushing system, flushing pipes mounted in the bowl, seals for the bowl outlet, devices preventing overflow of the bowl contents; devices forming a water seal in the bowl after flushing, devices eliminating obstructions in the bowl outlet or preventing backflow of water and excrements from the waterpipe
- E03D11/02—Water-closet bowls ; Bowls with a double odour seal optionally with provisions for a good siphonic action; siphons as part of the bowl
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
- E03D11/00—Other component parts of water-closets, e.g. noise-reducing means in the flushing system, flushing pipes mounted in the bowl, seals for the bowl outlet, devices preventing overflow of the bowl contents; devices forming a water seal in the bowl after flushing, devices eliminating obstructions in the bowl outlet or preventing backflow of water and excrements from the waterpipe
- E03D11/02—Water-closet bowls ; Bowls with a double odour seal optionally with provisions for a good siphonic action; siphons as part of the bowl
- E03D11/06—Bowls with downwardly-extending flanges for the sake of flushing
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
- E03D11/00—Other component parts of water-closets, e.g. noise-reducing means in the flushing system, flushing pipes mounted in the bowl, seals for the bowl outlet, devices preventing overflow of the bowl contents; devices forming a water seal in the bowl after flushing, devices eliminating obstructions in the bowl outlet or preventing backflow of water and excrements from the waterpipe
- E03D11/02—Water-closet bowls ; Bowls with a double odour seal optionally with provisions for a good siphonic action; siphons as part of the bowl
- E03D11/08—Bowls with means producing a flushing water swirl
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
- E03D5/00—Special constructions of flushing devices, e.g. closed flushing system
- E03D5/02—Special constructions of flushing devices, e.g. closed flushing system operated mechanically or hydraulically (or pneumatically) also details such as push buttons, levers and pull-card therefor
- E03D5/09—Special constructions of flushing devices, e.g. closed flushing system operated mechanically or hydraulically (or pneumatically) also details such as push buttons, levers and pull-card therefor directly by the hand
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
- E03D2201/00—Details and methods of use for water closets and urinals not otherwise provided for
- E03D2201/40—Devices for distribution of flush water inside the bowl
Definitions
- the present invention relates to a drain valve device for draining washing water in a tank from a drain port on a bottom wall of a tank, a drain device having the same, and a toilet bowl.
- This type of drain valve device is submerged in a tank that stores washing water, and is often used for draining washing water to various drainage destinations such as toilets and simple showers.
- the drain valve device contacts the valve body around the drain port on the bottom wall of the tank and lifts the valve body from the valve seat to open the drain port and drain water.
- the valve body that has been opened in this way receives the buoyancy from the float and maintains the valve-open state, and drains water during the opening of the valve.
- the float descends while being exposed to the water surface in accordance with the water level drop.
- the valve body comes into contact with the valve seat and closes, and the drainage of washing water stops. After the drainage is stopped, the tank is replenished with washing water in preparation for the next drainage.
- valve body is lifted by a chain or shaft when draining the washing water.
- This valve body lift requires a force (lift force) that exceeds the water pressure (total water pressure) of the washing water in the tank that presses the valve body toward the valve seat. Since this water pressure is proportional to the valve body area and the height from the valve body to the water surface when the tank is full (head pressure), a large valve body area requires a large lift force and impairs operability.
- the opening area of the valve seat becomes narrower, which leads to a decrease in the amount of drainage per hour, which lowers drainage performance.
- the present invention has been made to solve the above problems, and has as its objects to simplify the configuration and to achieve both operability and drainage performance. Disclosure of the invention
- a drain valve device of the present invention is a drain valve device that drains washing water in a tank from a drain port on a bottom wall of a tank, wherein the drain valve device contacts a valve seat around the drain port.
- a float mechanism that has a float, applies buoyancy of the float to the lifted valve body, maintains the valve body open, and closes the valve body as the water level in the tank decreases.
- the float mechanism is
- the through hole is closed via the float that has floated to the lower surface of the lid by buoyancy, and the closed state of the through hole is changed from the outside of the sleeve to the inside at the air inflow position below the sleeve. Until the air flow begins
- the valve is opened while the cover through-hole is closed by the float floating to the lower surface of the cover.
- the washing water in the tank flows out from the drain port, and the water level in the tank drops.
- the sleeve is filled with the washing water because the cover through hole is closed in the sleeve. It remains closed, even in the lid through-hole, due to the buoyant float. Then, the water level in the tank continues to drop and When the air is lowered to the air inflow position, air flows into the sleeve from the outside to the inside at the air inflow position.
- the washing water that has filled the inside of the sleeve falls from inside the sleeve as this air flows into the sleeve. Therefore, the float loses its buoyancy and descends as the cleansing water in the sleeve falls, and the closed state of the through hole disappears.
- the valve body cannot be kept open by the buoyancy exerted by the float on the valve body, and the valve body closes. Maintaining the valve body open—the subsequent closing of the valve only involves the closure of the through-hole of the lid alone, so no valve mechanism other than the float is required. Therefore, the configuration can be simplified, the assembling and manufacturing operation can be simplified, and the cost can be reduced.
- the drain valve device of the present invention as long as the water level of the washing water in the tank at the time of closing the valve is only above the lid at the upper end of the sleeve, the float floating to the lower surface of the lid is used. Of the cover through hole, and the maintenance of the closed state thereafter. Therefore, it is not necessary to set the full water level inadvertently higher than the sleeve lid, and the head pressure in the tank can be reduced accordingly. For this reason, even if the area of the valve element is increased, the lifter required for opening the valve element can be reduced, and operability and drainage capacity can be maintained.
- a predetermined amount of water for example, a total of about 5 liters or 6 liters of washing water, assuming that the tank has a large bottom area, Even when the head pressure is low, the above-mentioned predetermined amount of washing water can be drained. If the valve is opened using an actuator such as a motor, or if the valve is opened with a small operating force using the leverage principle, the tank bottom area should be reduced. There is no problem with raising the water level.
- the drain valve device of the present invention having the above configuration can also adopt the following modes. That is, the float mechanism is
- An upper water storage portion may be formed on the upper surface side of the lid so as to surround the through-hole, and may be formed into a tubular shape and store the tank-inside cleaning water above the through-hole.
- the closure of the through-hole of the lid is caused by the float that has been subjected to buoyancy floating up to the lower surface of the lid, and in order to secure this closed state, a seal member is provided around the through-hole and on the float to achieve watertightness. Is valid.
- a gap will remain in the closed portion of the through hole, and the washing water may leak from the upper surface of the lid to the lower surface through the gap.
- the leakage of the cleaning water from the through-hole of the lid causes air from the through-hole into the sleeve. Eventually causes inflow. Therefore, the washing water that fills the inside of the sleeve falls downward, the buoyancy exerted by the float on the valve body is reduced as described above, and the valve body is closed.
- the upper surface of the lid is formed in a cylindrical shape so as to surround the through hole, and the upper water reservoir for storing the cleaning water in the tank above the through hole, While such a leak is occurring, it is possible to maintain a state in which the washing water remains in the upper reservoir on the upper surface side of the lid.
- the inside of the sleeve is filled with the washing water, and the float remains floating on the lower surface of the lid. Then, the water level in the tank is When the air inflow position reaches the lower portion, air flows in from the outside of the sleeve to the inside, whereby the float separates downward and the valve body closes as described above.
- the valve can be kept open without any trouble and the valve can be closed. Therefore, there is no need to install sealing members or machine processing to ensure watertightness on the lower surface of the float or the through-hole. This simplifies component manufacturing and assembly, and also reduces component manufacturing costs. This is useful for reducing noise.
- the above-described through-hole may be one that is closed by the float, and may be a single through-hole or a small-diameter through-hole dotted on the lid.
- each small-diameter through-hole may be closed by a float, and the upper water storage section may surround the small-diameter through-hole and store washing water. Good. Even if the upper reservoir is provided in this manner, it is not necessary to increase the full water level inadvertently because the water level in the tank is only required to be such that the upper reservoir is submerged.
- a lifter is provided with a shaft having the valve body at a lower end so as to be vertically movable
- the shaft includes the sleeve and the upper water storage portion so as to penetrate through the through-hole, and the float is integrally provided with the shaft around the shaft, and the shaft extends to the lid. As a result, the ascending operation may be performed to a closing position for closing the through hole.
- the float mechanism can be integrated around the lifter, so that the handling becomes convenient.
- the opening operation of the valve body (opening of the drain port) and the closing of the through hole can be performed simultaneously by the raising operation of the shaft, so that the drainage operation is simplified.
- the valve closes (stops draining) after the through hole is maintained by the float and air flows in when the water level in the tank drops as described above.
- the shaft In addition to raising the shaft to the closing position in this way, the shaft can be raised to the intermediate position just before the closing position.
- the lid through-hole is not closed. Therefore, at the same time when the water level in the tank is lowered due to the opening of the valve body, the washing water in the upper water storage portion flows through the through-hole immediately into the sleeve and is released to the atmosphere. For this reason, the water level in the tank similarly decreases inside and outside the sleeve. Then, as the water level in the tank drops, the float descends after being exposed to the water surface. As a result, the valve body descends together with the shaft and closes the drain.
- the total amount of drainage in this case is smaller than when the shaft is moved up to the above closed position. Therefore, there is a difference between when the shaft is raised to the closed position and when it is raised to the intermediate position. It can be the total amount of wastewater.
- it is suitable for drainage destinations where it is necessary to use different amounts of wastewater with different total drainage amounts, for example, toilets that require a large or small amount of flush water for washing during stool and washing during urination.
- a simple shower or the like in which the amount of shower water can be set large or small.
- the upper water storage section when the upper water storage section is provided as described above, the upper water storage section can have an adjustable water storage amount. In this way, the length of the above-mentioned leakage time of the washing water can be set longer or shorter.
- the length of time required for the water level in the tank to reach the air inflow position below the sleeve can be adjusted according to the opening area of the drain outlet and the full water level. For this reason, the leak time can be made slower or faster than the water level descent time by adjusting both the opening area and the amount of storage in the upper reservoir.
- the second cylindrical body may be slidable up and down with respect to the first cylindrical body.
- the cylindrical body protrudes upward from the lid so as to surround the through hole, and has a side wall through hole penetrating a side wall at each position having a different height from the top surface of the lid.
- the upper reservoir stores the washing water in the state of being submerged in the washing water in the tank, and is exposed to the water surface as the water level in the tank decreases. Therefore, when exposed to the water surface, the washing water stored in the upper water storage section flows out from the through hole and the opening in the side wall of the cylindrical body. Therefore, by adjusting the area of the side wall through hole and the opening, it is possible to adjust the situation in which the washing water flows out of the upper water storage section. For example, even if the final storage amount of the washing water is the same because the bottom position of the through hole and the opening is the same, if the area is different, the upper water storage part will change from the full state to the final storage state There is a difference in the elapsed time before becoming. Accordingly, the above-described leakage time of the stored washing water can be adjusted by such an area adjustment, and the range of the adjustment of the water level descent time and the leakage time can be widened.
- water supply valve device of the present invention can also adopt the following modes.
- the sleeve is
- the position of air inflow from the outside to the inside of the sleeve at the lower part of the sleeve can be adjusted in the sleeve height direction.
- the shaft is a hollow shaft submerged in washing water in a tank and having the valve element around the lower end side, and has a cup portion expanded at the upper end in a cup shape,
- the force-pushing portion is located above the lid of the sleeve. Comprising the sleeve to
- a cup valve element disposed at an upper end cup portion of the hollow shaft submerged in the washing water in the tank and opening and closing a hollow hole of the hollow shaft;
- the cup portion applies the washing water weight to the valve body via the hollow shaft, so the valve body closes promptly.
- the float may not reach the lower surface of the lid. Even in this case, since the through hole of the lid is not closed, the inside of the sleeve is released to the atmosphere and drainage with a small amount of drainage is performed as described above. Can be.
- the cup valve element when the cup valve element is opened, the washing water inside the cup part and the washing water above the upper end of the cup part pass through the hollow shaft and are discharged from the drain port. As a result, the water level in the tank drops to the upper end of the cup. In this state, the cup is now empty, causing more buoyancy than before. The buoyancy of the lever is also applied. Then, the valve body opens apart from the valve seat at the drain, and the washing water is drained directly from the drain. In addition, since the float receives the buoyancy of the cup in addition to its own buoyancy, it floats up to the lower surface of the lid and closes the through hole of the lid.
- the through hole is closed until the water level in the tank reaches the air inflow position below the sleeve and air flows into the sleeve. Will be maintained. Therefore, the valve is closed as described above with the air flowing into the sleeve, and the total amount of drainage at this time is larger than that when the cup valve is closed. Depending on the selection of opening and closing of the valve body, drainage with different total drainage can be used properly. Further, when the shaft is selectively raised to the closed position of the lid through hole or an intermediate position in front of the shaft, the shaft is moved above the float mechanism and below the shaft. A force exerting a weight may be provided, and the weight may be wash water stored in a cup-shaped container having an open upper end when the container is submerged in the wash water in the tank. it can.
- the weight of the container and the cleaning water in the container always hangs on the float and the valve body. Therefore, when the floater moves up to the closing position, the weight causes the float to move away from the lower surface of the lid just before the water level in the tank reaches the air inflow position below the sleeve, and the through hole Elimination of the occluded state of the swift. For this reason, the total amount of wastewater can be reduced compared to the case where there is no weight.
- the valve in the case of the ascent operation to the intermediate position, the valve can be closed earlier as much as the weight is applied, and the drainage is also more improved than when there is no weight. The total amount of water can be reduced. In other words, even if the drainage is performed with different total drainage, the total drainage can be adjusted to decrease. In addition, since the washing water is used for the weight, a special weight is not required, which is advantageous in cost.
- the amount of washing water stored in the container can be adjusted, the amount of weight applied to the float and the valve can be adjusted, so that the degree of adjustment of the total amount of drainage can be variously adjusted.
- the timing at which the container is exposed to the water surface can be adjusted. It can provide a new method of adjusting the total amount.
- the amount of water per hour flowing out of the container to the outside can be adjusted.
- the rate of change of the weight applied to the float and the valve body can be changed. For example, if the amount of water per hour is increased, the weight exerted by the container can be reduced quickly. Also, by reducing the amount of water per hour, the weight exerted by the container can be reduced only gradually. As a result, the timing of disappearance of the clogged state can be changed in this way, and a new method of adjusting the total amount of drainage can be provided.
- the above drain valve device can be applied to a drain device that opens and closes a drain port on a tank bottom wall using the drain valve device.
- a drainage device can be applied to a toilet bowl in which flush water is poured into a toilet pole using the drainage device to perform toilet flushing.
- these drainage devices can be used for those that use different amounts of washing water for large and small excretions.
- another drain valve device of the present invention is a drain valve device that drains washing water in a tank from a drain port of a tank bottom wall, wherein a valve seat around the drain port is provided.
- a first valve body that opens and closes the drain port, and a hollow shaft that has the first valve body around the lower end side and is submerged in washing water in a tank.
- Said hollow shaft having a cup portion whose upper end is expanded in a cup shape and capable of moving up and down;
- a partition wall for partitioning the inside of the sleeve into upper and lower partition areas, wherein the upper partition area is a floating and sinking area of the float, and the lower partition area is a vertical movement area of the first valve body.
- the partition wall having a throttle hole communicating the upper and lower partition areas;
- a second valve body disposed at an upper end cup portion of the hollow shaft submerged in the washing water in the tank and opening and closing a hollow hole of the hollow shaft;
- the first valve body is opened by the ascending operation of the hollow shaft while the second valve body provided in the cup portion at the upper end of the hollow shaft is kept closed.
- the drain port is opened, and the washing water in the tank is discharged, and the water level in the tank drops.
- the float floats in the upper partitioned area in the sleeve, and exerts its buoyancy on the first valve body via the hollow shaft. Therefore, the first valve body rises to the upper end of the lower partition area in the sleeve, that is, to the lower surface of the partition wall, and the drain port is maintained in the open state.
- the cup at the top of the hollow shaft is first exposed on the water surface, and the buoyancy when the cup is submerged disappears.
- the cup keeps the washing water inside,
- the weight of the cap itself and the weight of the internal washing water are applied to the float via the hollow shaft.
- the float will then receive the above weight, piled on its own buoyancy.
- the float buoyancy is superior and the valve is kept open. This will further lower the water level in the tank.
- valve closing As the water level in the upper section of the sleeve drops, the float descends with most of it submerged, and eventually the first valve drops to the drain port and closes.
- the timing of valve closing at this time is as follows: the greater the degree of submersion of the float, the lower the water level in the sleeve is, and the lower the first valve body reaches the drain port.Therefore, when the washing water is stored in the cup, The valve will be closed early.
- the second valve body at the cup at the upper end of the hollow shaft is opened, the situation is as follows.
- the washing water inside the cup part and the washing water above the upper end of the cup part pass through the hollow shaft and are discharged from the drain port.
- the water level in the tank drops to the upper end of the cup.
- the cup is now empty, causing more buoyancy than before.
- the buoyancy of the lever cup is also applied.
- the first valve element opens apart from the valve seat at the drain port, and the washing water is drained directly from the drain port. Therefore, thereafter, the water level in the tank drops inside and outside the sleeve in the same manner as when the second valve body is closed.
- the float and the first valve only bear the weight of the cup. Therefore, most of the float floats above the water surface, It will descend as the water level drops, while maintaining the state of not being submerged. For this reason, it is necessary for the first valve body to reach the drainage port by lowering the water level more, and the total amount of drainage discharged before closing the valve can be increased.
- the washing water in the tank can be drained with a difference in the total drainage.
- the first valve body and the second valve body can be used as long as the water level of the washing water in the tank at the time of closing the first valve body is only above the force at the upper end of the hollow shaft. Wash water drainage can be performed through selective opening of two valves. Therefore, it is not necessary to set the full water level inadvertently higher than the cup part, and the head pressure in the tank can be reduced accordingly. For this reason, even if the area of the first valve body on the tank bottom wall side is increased, the lift force required to open the first valve body can be reduced, and operability and drainage capacity can be maintained. Since the second valve body is located at the cup, the head pressure applied to the valve body is small, and the valve opening operation is easy.
- the drain valve device of the present invention can also be applied to a drain device that opens and closes a drain port on a tank bottom wall using the drain valve device.
- a drainage device can be applied to a toilet in which the flushing water is poured into the toilet bowl portion using the drainage device to perform toilet flushing, and the amount of flushing water is selectively used for large and small excretions.
- FIG. 1 is a schematic perspective view showing the toilet bowl 10 of the embodiment.
- FIG. 2 is a front view showing the toilet 10 in a partially broken front view.
- FIG. 3 is a side view showing the toilet 10 in a partially cutaway manner.
- FIG. 4 is an explanatory diagram for explaining the state of the bottom surface of the wash water tank 100 included in the toilet 100.
- FIG. 5 is an explanatory diagram showing the configuration of the drain valve device 110 in a cross-sectional view along line 5-5 in FIG.
- FIG. 6 is a sectional view taken along line 6-6 in FIG.
- FIG. 7 is a sectional view taken along line 7-7 of FIG.
- FIG. 8 is an explanatory diagram for explaining how the inner volume of the float 122 is varied by the inner sleeve 122 b.
- FIG. 9 is an explanatory diagram showing a state of discharge of cleaning water and a behavior of each member in the first half part of the large cleaning by pressing the large cleaning pressing button 142.
- FIG. 10 is an explanatory diagram showing a state of discharge of cleaning water and a behavior of each member in the latter half of the large cleaning.
- FIG. 11 is an explanatory diagram showing a state of discharge of cleaning water and a behavior of each member in the first half of the small cleaning when the small cleaning pressing button 144 is pressed.
- FIG. 12 is an explanatory diagram showing a state of discharge of cleaning water and a behavior of each member in the latter half of the small cleaning.
- FIG. 13 is an explanatory diagram for explaining the toilet 10 of the embodiment with its upper surface cut away.
- FIG. 14 is an explanatory diagram showing the toilet bowl 10 of FIG. 13 as viewed from the left along a center line in the front-rear direction.
- FIG. 15 is an explanatory view showing the toilet bowl 10 in a sectional view to the right.
- FIG. 16 is an explanatory diagram for explaining a portion near the center of the rim shown in FIG. 14 by partially cutting the rim.
- FIG. 17 is an explanatory diagram illustrating the behavior of the wash water discharged from the first base water discharge hole 41 and the second base water discharge hole 42.
- FIG. 18 shows the flushing from the left center water discharge hole 43, the first correction water discharge hole 45, the rim front end side water discharge hole 44, the second correction water discharge hole 48, and the right center water discharge hole 47.
- FIG. 4 is an explanatory diagram illustrating water discharge.
- FIG. 19 is an explanatory diagram schematically illustrating the behavior of the wash water caused by the discharge of the wash water from all the water discharge holes.
- FIG. 4 is an explanatory diagram schematically illustrating a state when virtualized.
- FIG. 21 is an explanatory diagram schematically illustrating the turning behavior of the stored water when both main flows simultaneously merge into the stored water R S.
- FIG. 22 is an explanatory diagram showing the toilet bowl 10 in a cross-sectional view taken along the line 22-2-22 in FIG. 13 near the pooled water of the second main stream S2.
- FIG. 23 is an explanatory diagram showing a cross section of the pipeline along the line 23-23 in FIG. 15 in order to explain the pipeline configuration of the siphon trap 20.
- FIG. 24 is an explanatory diagram showing a cross section of the descending pipeline section 28 taken along the line 24-24 in FIGS. 15 and 23.
- FIG. 25 is an explanatory diagram showing a cross section of the descending conduit section 28 taken along line 25-25 in FIGS. 15 and 23.
- FIG. 26 is an explanatory diagram showing a cross section of the descending pipeline section 28 taken along the line 26-26 in FIGS. 15 and 23.
- FIG. 27 is an explanatory diagram for explaining the behavior of the washing water at the beginning of the washing start.
- FIG. 28 is an explanatory diagram for explaining the manner in which the washing water is stored and stored in the terminal pipeline 74.
- FIG. 29 is an explanatory diagram for explaining the situation of the occurrence of the siphon effect.
- FIG. 30 is an explanatory diagram showing the installation state of a U-shaped tube for confirming the appearance and continuation of the siphon action under the remaining air condition.
- Fig. 31 is a graph showing the transition of the liquid level in the U-tube.
- Fig. 32 is an explanatory diagram that compares the flow rates of water supply to the toilet pole, inflow to the bowl, and discharge of wash water from the trap for the toilet 10 compared to the toilet 10 of the present embodiment. It is.
- FIG. 33 is an explanatory diagram showing the results of evaluation tests performed on the toilet 10 of this example and the comparative toilet.
- FIG. 34 is an explanatory diagram showing a comparison result between the product of the example and the product of the comparative example regarding the pushing efficiency of the swirling flow.
- FIG. 35 is an explanatory view showing a cross section of a main part of the drain valve device 11 OA of the modified example.
- FIG. 36 is a schematic diagram showing a main part of the upper end of the sleeve of the drain valve device 110 B of the modified example.
- FIG. 37 is a perspective view schematically showing a main part of the upper end of the sleeve of the drain valve device 11 OB.
- FIG. 38 is an explanatory diagram illustrating a drain valve device 110C according to another modification.
- FIG. 39 is an explanatory diagram illustrating a drain valve device 110D according to another modification.
- FIG. 40 is an explanatory diagram for describing main parts of a drain valve device according to another modification.
- FIG. 41 is an explanatory diagram illustrating a cross-sectional view of a drain valve device 110 E according to another modification.
- FIG. 42 is an explanatory diagram illustrating the drain valve device 110E when viewed from the side.
- FIG. 43 is an explanatory diagram showing a cross section of a main part of a drain valve device 110F of another modification.
- FIG. 44 is an explanatory diagram showing a cross-sectional view of a main part of a drain valve device 11 OG according to another modification.
- FIG. 45 is an explanatory diagram showing a cross-sectional view of a main part of a drain valve device 110 H of another modified example.
- FIG. 46 is an explanatory diagram showing a cross-sectional view of a main part of a drain valve device 110I of another modification.
- FIG. 47 is a perspective view schematically showing a main part of a drain valve device 11 OK of a modified example in which the state of the through-hole closure is different.
- FIG. 48 is an explanatory diagram showing the valve element 112 when the periphery of the valve element 112 is viewed in cross section and when viewed from the lower end direction.
- FIG. 49 is an explanatory diagram showing a cross section of a main part of a drain valve device 200 of another embodiment.
- FIG. 50 is an explanatory view schematically showing a drain valve device 300 of another modified example.
- Figure 1 shows the toilet bowl of the embodiment
- FIG. 10 is a schematic perspective view showing the toilet 10
- FIG. 2 is a front view showing the toilet 10 partially cut away
- FIG. 3 is a side view showing the toilet 10 partially cut away
- FIG. FIG. 3 is an explanatory diagram for explaining a state of a bottom surface of a washing water tank 100 included in the toilet 100.
- the toilet 100 includes a toilet body 11 having a toilet bowl portion 12 described later, and a flush water tank 100 at the rear of the body.
- the toilet body 11 and the wash water tank 100 are both made of ceramic, and are integrally formed such that the wash water tank 100 rides on the upper surface of the toilet body 11.
- a toilet seat 11a and a toilet lid 11b are attached to the rim 14 on the upper edge of the toilet body 11 so as to be freely opened and closed.
- the flush water tank 100 has a substantially L-shaped outer shape in plan view, and includes a rear tank section 102 located behind the toilet body section 11 and a side tank section 104 located on the side of the toilet bowl. And The upper end of each tank is closed by a lid 106.
- the rear tank portion 102 and the side tank portion 104 are formed so as to be continuous so that their internal regions are continuous.
- the flush water tank 100 is combined with the rear tank section 102 and the side tank section 104 in order to apply the flush water to toilet bowls with a total flush water volume of about 5.5 liters. Store a full amount of flush water slightly above the total flush water (eg, about 5.6 liters).
- the flush water tank 100 discharges approximately 5.5 liters of flush water in the tank volume (approximately 5.6 liters) at the time of stool, and after flushing the toilet bowl, this 5.5 liters.
- Replenish the washing water with a washing water supply mechanism such as a ball tap (not shown).
- the bottom area of the rear tank 102 is reduced to about 3 60 cm 2 (approximately 9 x 40) and the side tank section 104 was set to approximately 180 cm 2 (approximately 9 x 20), so when the above tank water volume (approximately 5.6 liters) was stored
- the full water level is about 12.5 cm.
- the tank height from the upper surface of the toilet body 11 is about 20 cm including the lid, taking into account the margin for preventing the washing water from scattering from the full water level and the convenience of assembling the drain valve described later.
- the height of this tank is 12 to 1 to 3 of the existing toilet with tank.
- the bottom wall 103 of the rear tank portion 102 is inclined toward the connection portion with the side tank portion 104.
- the bottom wall 105 is inclined toward the drain valve installation portion 107 on the front side of the toilet bowl.
- the bottom wall 103 is inclined as shown by a slope symbol 103a in the figure, and the side tank section 1 is inclined.
- the bottom wall 105 is inclined as shown by the inclination symbol 105a in the figure.
- the washing water in the rear tank section 102 flows to the side tank section 104 and the side tank section 104 In the part 104, it flows to the drain valve arrangement part 107 side.
- no washing water is left on the bottom wall 103 of the rear tank section 102 away from the drain valve arrangement section 107, particularly on the left bottom surface section of the rear tank section 102 in FIG. I can do it.
- FIG. 5 is an explanatory view showing the configuration of the drain valve device 110 in a cross-sectional view taken along line 5-5 in FIG. 1
- FIG. 6 is a cross-sectional view taken along line 6-6 in FIG. 5
- FIG. -It is a sectional view along line 7.
- the drain valve device 110 is disposed in the drain valve disposing portion 107 of the side tank portion 104 in the washing water tank 100 as follows.
- the drain valve disposing portion 107 has an opening 107a on the bottom surface, and a valve seat sleeve 107b is water-tightly mounted on the opening via a fixing member 107c and a seal ring 107d. ing.
- the through hole of the valve seat sleeve 107 b is used as a drain port for washing water in the tank 108, and the upper edge of the through hole is used as the valve seat 109. I do.
- an L-shaped pipe 107 e is attached to the fixture 107 c, and the washing water in the tank is passed through the pipe to a rim water passage described later.
- the drain valve device 110 is provided with a valve body 112 that contacts the valve seat 109 around the drain port 108 to open and close the drain port 108, and the valve body 112 at the lower end. It has a hollow shaft 114 that moves up and down to open and close the valve element, and a float mechanism 120 that causes the opened valve element 112 to close.
- the float mechanism 120 has a float 122 and a sleeve 124 surrounding the float 122 to form a float floating area.
- the float 122 has an inverted posture in which the bottomed cylindrical body 122 a has the opening side downward, and is integrated with the hollow shaft 114 around the shaft.
- the float 122 is submerged in the washing water in the tank with air remaining inside during the washing standby shown in FIG.
- the valve 1 when the valve 1 is opened, the buoyancy caused by being submerged is exerted on the valve 1 1 2 via the hollow shaft 1 1 2 when the valve 1 is opened, and the valve 1 1 2 is opened.
- the valve element 112 closes. Maintaining the valve body open ⁇ The behavior of the float when the valve is closed will be described later.
- the float 122 has a closed seal 123 at the upper end of the bottom.
- the closing seal 123 closes a through hole 128 described later from below as the float 122 floats.
- the closing seals 123 are formed from a sheet material of rubber soft resin (for example, soft polyvinyl chloride (PVC), foamed polyethylene (PE), etc.), and the through-holes closed as described above are formed. 8 to block the gas-liquid flow. This shielding degree will be described later.
- the float 122 has an inner sleeve 122 b inside the cylindrical body 122 a, and both are hermetically held by a seal ring 122 c on the inner sleeve side.
- FIG. 8 is an explanatory diagram for explaining how the inner volume of the float 122 is varied by the inner sleeve 122 b.
- the float 1 2 2 has an inner sleeve 1 2 By pulling 2b downward, its internal volume can be increased or decreased, and the amount of buoyancy applied when submerged can be adjusted.
- the sleeve 124 is provided on the upper surface of the drain valve mounting portion 107, and is fitted and fixed to the upper edge of the valve seat sleeve 107b.
- legs 124a are erected at equal intervals around the lower end of the sleeve, and the opening between the legs surrounds the periphery of the valve seat 109. Therefore, the opening between the legs serves as a water passage when the washing water in the tank reaches the drain port 108 and is drained.
- the opening between the legs can be used also as an air inflow hole 134 described later, or can be provided separately from the air inflow hole 134.
- the sleeve 124 has a lid 126 at the upper end, and the center of the lid is a through hole 128 into which the hollow shaft 114 enters.
- the sleeve 1 24 has an upper portion of the lid 1 26 as an upper water storage section 130 for storing cleaning water in the tank at the time of cleaning standby shown in FIG.
- the water level that exceeds the upper end of the upper water storage section 130 by about several millimeters is the full water level of the washing water, and in this state, the full water volume described above (about 5. 6 liters of washing water is stored.
- Flow holes 1 15 are formed at equal pitch.
- the sleeve 124 has through-hole projections 127 protruding from the opening edge of the through-hole 128 at the same pitch (see FIG. 6), and is located below the lid 126 and from the inner wall of the sleeve.
- the inner wall protruding strips 13 and 2 that protrude toward the center are provided at an equal pitch (see Fig. 7).
- the through hole protrusions 12 9 and the inner wall ridges 13 32 oppose the hollow shaft and the float, leaving a slight gap between the outer periphery of the hollow shaft 114 and the outer periphery of the float 122, respectively.
- this hollow shaft 114 moves up and down almost straight by being guided by the through-hole projections 127, and moves up and down almost straight inside the sleeve 124 even with the float 122.
- the valve element 112 abuts the valve seat 109 at substantially the same position to close the drain port 108.
- the outer circumference of the hollow shaft 1 1 4 The hollow shaft 1 14 smoothly moves up and down because the hollow shaft 1 14 can only come into contact with the inner wall ridge 1 32.
- the gap between the floats 122 and the inner peripheral walls of the sleeves 124 is widely open as can be seen from the figure. Therefore, as described later, when air flows into the sleeve from the air inflow position below the sleeve, the inflow air quickly rises up to the lid 126 on the inner wall of the sleeve via the gap. If the sleeve 124 has an inner diameter slightly larger than the outer diameter of the float 122, the outer diameter of the sleeve can be reduced, and compacting is possible.
- the sleeve 124 has air inflow holes 134 on the lower peripheral wall at a constant pitch.
- the air inflow hole 134 allows air in the tank to flow into the sleeve and participates in valve closing as described later. I do.
- the timing of the air inflow is determined by the upper end position of the air inflow holes 134. Therefore, by adjusting the position of the upper end of the hole, the total amount of washing water can be specified.
- the opening position of the air inflow holes 134 is adjusted so that the total amount of the washing water is about 5.5 liters. At this time, the total bottom surface area of the washing water tank 100 is also taken into consideration.
- the drain valve device 110 is composed of a rising operation engagement member 140 formed at the upper end of the hollow shaft 114 and a large cleaning pressing button movably arranged on the upper surface of the lid 106. It includes a large cleaning link piece 144 and a small cleaning link piece 144 for transmitting the pressing operation of each of these buttons to the hollow shaft 114.
- the large cleaning pressing button 14 2 and the small cleaning pressing button 144 are always upwardly pressed by a spring (not shown) so that they return to their original positions after the pressing operation. Being energized.
- the pressing operation of each pressing button is converted into a rotating operation of the large cleaning link piece 144 or the small cleaning link piece 144.
- this link piece rotates, the hollow shaft 114 is lifted through the engagement arm 144 that engages each link piece with the ascending motion engagement tool 140, and the valve element 1 1 2 Opens the drain port 108 away from the valve seat 109. As a result, drainage of washing water in the tank (water supply to the toilet) is started.
- the drain valve device 110 is provided with a shift amount adjusting mechanism 14 8 for selectively selecting the ascending operation length of the hollow shaft 114 when the above-mentioned push buttons for large washing and small washing are pressed.
- the shift amount adjusting mechanism 148 includes a piece 149 that can be freely rotated in a pendulum shape, and a piece 149 that extends from below the large cleaning pressing button 144 and rotates the piece 149. And a rotation restricting plate 150 for restricting the rotation.
- the bridge 149 is urged by a spring (not shown) in the direction of arrow X in the figure, and the leading end of the bridge abuts the outer periphery of the upper end side of the hollow shaft 114.
- the rotation restricting plate 150 is urged upward by a spring (not shown), and is lowered by a pressing operation of the large cleaning pressing button 142. Due to this lowering operation, the rotation restricting plate 150 enters between the top end of the block 1449 and the outer peripheral wall of the hollow shaft 114, and moves while the hollow shaft 114 moves up. The tip of the bridge away from the hollow shaft. As a result, the lift amount of the hollow shaft 114 increases as described later.
- the rotation restricting plate 150 stops at the position shown in the drawing when the small cleaning pressing button 144 is pressed, so that the piece 149 receives the spring biasing force, and as described above, the tip of the piece. To the outer periphery of the upper end side of the hollow shaft 1 14. As a result, the lift amount of the hollow shaft 114 decreases as described later.
- FIG. 9 is an explanatory diagram showing the state of the washing water discharge and the behavior of each member in the first half of the large washing when the large washing pressing button 14 2 is pressed
- Fig. 9 (a) shows the state when the button is operated
- Fig. 9 (b) is an explanatory diagram showing the state of the washing water being discharged.
- Figure 10 shows wash water discharge in the latter half of the large wash
- FIG. 10 (a) is an explanatory view showing the state near the end of the discharge
- FIG. 10 (b) is an explanatory view showing the state at the end of the discharge of the wash water. Note that, for convenience of explanation, the pressed buttons that are operated are drawn separately.
- the seal 1 2 3 is raised to the rising end position where the seal 1 2 3 contacts the lower surface of the lid 1 2 6. As a result, the through-holes 128 are closed by the closing seals 123. Since the lift restriction holes 116 are formed to face each other, the hollow shaft 114 can be assembled even if it is rotated 180 degrees in relation to the ascending motion engagement member 140. is there.
- the rotation restricting plate 150 is prevented from falling into the lift restricting hole 116 at the leading end of the piece, but is not limited to this configuration.
- the rotation restricting plate 150 is inclined by the button, and the piece 149 is rotated by the plate away from the hollow shaft 114. It can also be configured as follows.
- the valve body 112 moves away from the valve seat 109 and opens the drain port 108 simultaneously with the rise.
- the float 1 2 2 applies its own buoyancy (float buoyancy) to the valve 1 1 2 to maintain the valve 1 1 2 in the open state.
- the float 1 2 2 exerts the float buoyancy on the valve 1 1 2, but the valve 1 1 2 is affected by the difference between the head pressure received from the washing water in the tank and the float buoyancy. The valve is kept closed.
- the float 122 constantly presses the closing seal 123 against the lower surface of the lid 126 by its own buoyancy, the closed state of the through hole 128 by the closing seal 123 is maintained.
- the washing water in the tank is continuously drained from the drain port 108, so that the water level in the tank drops.
- the water level in the tank reaches the uppermost end of the sleeve 124, that is, the upper end of the surrounding wall of the upper reservoir 130, the water level in the tank uniformly decreases inside and outside the sleeve.
- the through hole 128 is closed by the blocking seal 123 of the float 122. Up to. Therefore, no air flows into the sleeve, the inside of the sleeve remains filled with the washing water, and the through hole 128 also remains closed by the float 122 receiving buoyancy. Even during this time, the water level in the tank continues to drop outside the sleeve (see Fig. 9 (b)).
- the valve body 112 descends toward the valve seat 109, closes the drain port 108, and the drainage of the washing water in the tank (water supply to the toilet) ends (Fig. 1). 0 (b)).
- the height and number of the air inflow holes 134 are adjusted so that about 5.5 liters of the above-mentioned washing water can be discharged before the valve body closes.
- the through-hole 1 28 is not sufficiently closed and there is a gap at the closed location, air will flow into the sleeve through this gap, and the water in the tank will reach the air inlet 1 3 4 before the water level in the tank reaches Is released to the atmosphere.
- the washing water is stored in the upper water storage section 130 above the through hole 128, even if a gap remains, the washing water leaks from this gap. While this leak is occurring, the through-holes 128 are not released to the atmosphere in the sleeve, and the closure of the through-holes 128 can be maintained while the float 122 is kept floating.
- the drain valve device 110 when draining a predetermined amount of water (approximately 5.5 liters), the washing water is stored in the upper water storage portion 130 as described above, and the through hole formed by the float is used. It is enough to maintain the blockage of 1 2 8. Therefore, it is sufficient to store a tank water volume (about 5.6 liters) that slightly exceeds this predetermined water volume. Then, as shown in Fig. 5 and the like, the full water level when this tank water volume is stored is set to a water level slightly exceeding the upper end of the wall around the upper water storage section 130 (about 12.5 cm in this embodiment). Just fine.
- Fig. 11 is an explanatory diagram showing the state of the cleaning water discharge and the behavior of each member in the first half of the small cleaning by pressing the small cleaning pressing button 144, and Fig. 11 (a) shows the state when the button is operated. Fig. 11 (b) is an explanatory view showing a state during the discharge of the washing water. Fig. 11
- FIG. 12 is an explanatory diagram showing the state of washing water discharge and the behavior of each member in the latter half of the small washing, and Fig. 12 (a) shows the state near the end of the discharge in Fig. 12 (b). Is an explanatory diagram showing a state at the time of termination of washing water discharge.
- the present invention is not limited to this configuration.
- the rotation restricting plate 150 is tilted by the button, and the piece 144 is rotated toward the hollow shaft 114 by this plate. Can also be configured.
- valve body 112 separates from the valve seat 109 and opens the drain port 108. This allows drainage of washing water in the tank (supply to the toilet bowl). Water) is started, and the valve body 1 12 is kept open by the float buoyancy as in the case of large washing. This will lower the water level in the tank.
- the through hole 1 28 since the through hole 1 28 is open, the water level in the tank decreases in the same way inside and outside the sleeve until it reaches the lid 126.
- the washing water stored in the upper water storage section 130 passes through the through-hole 1 28 as the water level decreases outside the sleeve, and flows down into the sleeve, and as shown in FIG. The atmosphere is released. Therefore, the water level in the tank continues to decrease in the same manner inside and outside the sleeve, even at a position below the lid 126.
- the total amount of drainage in this case is smaller than when the hollow shaft 114 is moved up to the above-described rising end position (see FIG. 9A) by the pressing operation of the large cleaning pressing button 142.
- a smaller amount of flush water can be drained to supply a toilet bowl at the time of the small flush associated with the pressing operation of the small flush push button 144 than at the time of the large flush.
- different amounts of washing water can be supplied (discharged) from the washing water tank 100 to the toilet bowl during large and small washing.
- Fig. 13 is an explanatory view for explaining the toilet 10 of the embodiment by breaking its upper surface
- Fig. 14 is a cross section of the toilet 10 of Fig. 13 to the left along the center line in the front-rear direction
- Fig. 15 is an explanatory view showing the toilet bowl 10 in a right cross-sectional view
- Fig. 16 is a partially cutaway view of the vicinity of the center of the rim shown in Fig. 14.
- the rim 14 at the upper edge of the toilet body 11 of the toilet 10 is formed so as to surround the bowl 12, and a hollow rim conduit 16 is formed therein. Have.
- the rim water channel 16 is connected to the flush water channel 18 at the back of the toilet.
- the flush water supply channel 18 extends toward the toilet sleeve side and accommodates the L-shaped piping 107 e (see FIG. 2) from the drain valve device 110 shown in FIG.
- the L-shaped pipe 107 e is watertightly fixed in the connection hole 19 of the cleaning water supply channel 18, and the cleaning water in the cleaning water tank 100 is guided to the cleaning water supply channel 18. Put in.
- the flush water supplied to the flush water supply channel 18 in this way enters the rim conduit 16 from the left and right as shown in FIG. 13 and is guided around the upper edge of the bowl bowl 12.
- the toilet pole section 12 is connected to the siphon trap 20 at the pole bottom section 13.
- the siphon trap 20 has a trap inlet 22 opening toward the bottom 13 of the ball, and an ascending pipe 24 forming an obliquely upward pipe from the trap inlet 22 to the toilet rear side. It has a top pipe section 26 connected to the upper end of the rising pipe section 24 and curved downward, and a descending pipe section 28 connected to the top pipe section 26 and descending.
- the top conduit section 26 is provided with a top weir 30 bent to the side of the descending conduit section 28 at the connection with the ascending conduit section 24, and the toilet pole section 12 is formed by this top weir 30.
- Storm water Defines the water level of RS.
- the pipe shape of the siphon trap 20 will be described later.
- the rim 14 includes a rim water conduit 16, a base first water discharge hole 41, a base second water discharge hole 42, and a left central water discharge hole 43 on the left side of the toilet shown in FIG. 13. Between the left center water discharge hole 43 and the rim front end side water discharge hole 44, a porous first correction water discharge hole 45 is provided. The left center water discharge hole 43 and the base second water discharge hole 4 are provided. 2 has a porous auxiliary water discharge hole 46.
- the rim 14 is provided with a right center water discharge hole 47 on the right side of the toilet, and a second porous straightening hole is provided between the right center water discharge hole 47 and the rim front end water discharge hole 44.
- the water hole 48, the third correction water discharge hole 49, and the perforated fourth correction water discharge hole 50, between the right center water discharge hole 47 and the connection part of the washing water supply channel 18, are auxiliary. It has a water discharge hole 51.
- the first base water discharge hole 41 and the second base water discharge hole 42 are formed on the bottom side of the rim water conduit 16 and have a long hole shape as shown in the figure (in this embodiment, the width X length is the first base water discharge hole).
- the water discharge hole 41 has a size of 12 x 43 mm
- the second water discharge hole 42 has a size of 13 x 35 mm.
- the correction water discharge hole 50 and the auxiliary water discharge hole 51 are each formed in a substantially circular hole shape on the bottom side of the rim water conduit 16.
- the diameter of the water discharge hole is about 4 mm for the auxiliary water discharge hole 46 and the auxiliary water discharge hole 51, about 13 mm for the first correction water discharge hole 45, and the water discharge on the rim front end side.
- Hole 4 4 and second corrective spout 4.8 are about 10 mm
- third corrective spout 49 and fourth corrective spout 50 are about 5 mm
- right center spout 47 is about 10 mm. It is 16 mm.
- each of the above-mentioned water discharge holes reflects the direction of the wash water while flushing the wash water along the surface of the bowl bowl 12 with the pole bottom 13. Discharge to the side.
- a left bulge 52 and a right bulge 53 protruding from the bottom of the headrace channel are formed substantially at the center of the rim headrace channel 16 on the left and right sides of the toilet.
- the ridges include a rim conduit 16, an expanded conduit 16 a with a large cross-sectional area on the upstream side with respect to the flow direction of the washing water, and a narrow conduit with a narrow cross-sectional area on the downstream side. Distinguish to 16b. Therefore, in the expanded headrace 16a, the amount of flushing water is large, and in the narrow headrace 16b, flushing water that has been rectified in the left and right ridges flows.
- the wash water is discharged from each of the above water discharge holes such as the base first water discharge hole 41, the base first water discharge hole 41 and the base second water discharge hole 42 have a long hole shape.
- the flushing water is discharged at a larger flow rate than the other spouting holes.
- the first correction water discharge hole 45, the right center water discharge hole 47, the front end side water discharge hole 44 of the rim and the second correction water discharge hole 48 are formed by rectification in the narrow headrace channel 16b.
- the cleaning water is discharged in a state where the directionality of the discharged cleaning water is stable, and the discharge amount at that time depends on the hole diameter.
- the left central water discharge hole 43 is formed with a hole diameter of about 16 mm in the left bulge 52, and the opening direction is for cleaning the extended water passage 16a. It matches the direction of water flow. Therefore, the flush water discharged from the left central water discharge hole 43 advances straight from the left central water discharge hole 43 to the upper peripheral wall 55 of the toilet pole portion 12 at the lower end of the rim 14.
- the ejection trajectory is guided as shown by the ejection trajectory TS in the figure.
- the rim 14 has a hanging plate portion 56 on the side of the toilet bowl portion 12 of the narrow headrace channel 16b from the left ridge portion 52 to the front side of the toilet bowl, and a left central water discharge hole.
- the front area of 4 3 is surrounded by the hanging plate section 56, the bottom section 57 of the narrow headrace channel 16 b and the upper peripheral wall 55. For this reason, the left central water discharge hole 43 discharges the cleaning water along the above-described discharge trajectory T S with high directionality and convergence.
- FIG. 17 is an explanatory view for explaining the behavior of the wash water discharged from the first base water discharge hole 41 and the second base water discharge element L 42
- FIG. 18 is a left central water discharge hole 43 and the first water discharge hole 43
- FIG. 18 (a) is an explanatory view for explaining discharge of washing water from the water discharge hole for correction 45, the water discharge hole on the front end side of the rim 44, the water discharge hole for second correction 48, and the water discharge hole 47 in the right center.
- FIG. 18 Is an explanatory diagram explaining the behavior of the wash water when it is assumed that the wash water was separately discharged from each spout.
- FIG. 18 (b) shows the wash water generated by the discharge of the wash water from each spout.
- FIG. 9 is an explanatory diagram for explaining the behavior.
- Fig. 19 is an explanatory diagram that schematically describes the behavior of the wash water caused by the discharge of the wash water from all the water discharge holes.
- Fig. 20 shows that the main flows that cause this wash water behavior individually merge into the reservoir RS.
- Fig. 21 schematically illustrates the behavior of the swirl in the pool when both main streams merge into the pool RS at the same time.
- the base first water discharge hole 41 and the base second water discharge hole 42 are formed at the rear side of the toilet bowl and open to the bottom of the expanded headrace 16a. I have. Therefore, the water discharge holes discharge the washing water obliquely from above the stored water RS toward the front of the toilet. In this case, since both of the water discharge holes have a long hole shape, the washing water is discharged widely so as to be wider than the long hole shape. Since the water discharge holes are formed adjacent to each other, the flow of the cleaning water after the discharge is merged. Therefore, the merger allows the main flow of the flow having an accurate direction and a strong water force (the first main flow S). 1) is formed, and the first main stream S 1 is merged with the pool water RS.
- the first main stream S 1 merges with the stored water RS from the above-mentioned water discharge hole position and the flush water discharge direction toward the diagonally right front from the back left side of the toilet in plan view as shown in the figure. Further, since the first main stream S1 is due to the merging of the washing water streams from both the water discharge holes, the first main stream S1 takes a stable trajectory and merges with the stored water RS. The flush water discharged from the two water discharge holes and not involved in the formation of the first main stream S 1 merges with the accumulated water RS as a flow on both sides of the first main stream S 1, and the toilet pole portion where the first main stream S 1 does not arrive. 1 Rinse the surface of 2. The same applies to the cleaning water discharged from the auxiliary water discharge holes 46.
- the left central water discharge hole 4 3 is used for flushing water guided to the rim water conduit 16 to the same side as the first base water discharge hole 41 and the second base water discharge hole 42 (more specifically, the toilet left side). Discharge from. As shown in FIG. 18 (a), the cleaning water thus discharged flows along the above-described discharge trajectory TS so as to circulate along the upper peripheral wall 55 (see FIG. 16). However, along with the discharge of the washing water from the left central water discharge hole 43, the first correction water discharge hole 45, the rim front end water discharge hole 44, the second correction water discharge hole 48, and the right central water discharge hole 48. 47 Cleaning water discharge from 7 is also occurring.
- the discharge of the wash water from each of the water discharge holes intersects the discharge trajectory TS of the wash water discharged from the left central water discharge hole 43. Therefore, in the flow of the flush water of the discharge locus TS, the flush water discharged from the first straightening water discharge hole 45, the flush water discharged from the rim front end side water discharge hole 44, and the second straightened water are provided on the front side of the toilet. Spout 4
- the cleaning water discharged from the nozzle 8 and the cleaning water discharged from the third correction water discharging hole 49 are sequentially merged.
- the flow of the wash water of the discharge trajectory TS includes the flush water discharged from the right center water discharge hole 47 and the fourth correction water discharge hole.
- the cleaning water discharged from 50 merges.
- the merger of the wash water corrects the flow of the wash water on the discharge trajectory TS through the merger, and also merges the flow of the wash water on the discharge trajectory TS into the main stream having a more accurate direction and strong water force (No. 2).
- the main stream S 2) is merged with the second main stream S 2.
- This second main stream S 2 is a stream obtained by correcting the flow of the washing water of the discharge trajectory TS around the upper peripheral wall 55 at the front side of the toilet and on the right side of the toilet, so Then, as shown in Fig. 18 (b), the toilets merge from the right front to the diagonally left rear in plan view.
- the first main flow S1 and the first flush S1 have a substantially parallel relationship across the sump RS in the horizontal view of the toilet bowl. Due to the merging of the two main flows, a swirl flow in the same rotation direction is generated in the reservoir RS. In addition, in the auxiliary water discharge hole 51 and the fourth correction water discharge hole 50 on the water discharge hole side, flush the surface (the rear surface of the toilet) of the toilet bowl portion 12 where the second mainstream S 2 does not reach. .
- the first main flow S1 and the second main flow S2 are substantially parallel to the reservoir water RS in the horizontal view of the toilet bowl, and have a relationship so as to generate a swirling flow in the reservoir water RS in the same rotational direction. Therefore, in the toilet 10 of the present embodiment, when the respective main flows cause the swirling flow in the reservoir RS, the main flows do not disturb each other in the swirling direction of the swirling flow. Therefore, the swirl flow is promoted without disturbing the swirl flow, so that the energy (water force) of the discharge cleaning water can be used without waste to generate the swirl flow. Can be increased.
- FIG. 22 shows the toilet bowl 10 near the pool of the second main stream S2 in the vicinity of the sump.
- FIG. 3 is an explanatory diagram shown in cross section along line 22.
- the inner wall of the toilet pole portion 12 on the front side of the toilet is connected to the upper peripheral wall 5 5 below the rim 14. This is followed by a gentle slope 60, a large slope 61 and a lower-end shelf 62 with a reduced slope, and this lower-end shelf 62 is located near the water surface in the reservoir RS. I did it.
- the lower end shelf 62 receives the first main flow S 1 and guides the turning, and the swirling state of the washing water that occurs when the first main flow S 1 joins the reservoir RS is shown in FIG. 20. As shown, the lead S 1 L of the turning in the depth direction of the stored water RS is reduced.
- the inner wall of the toilet bowl portion 12 on the rear side of the toilet bowl is formed as a rear inclined portion 63 which is substantially uniformly inclined from below the rim 14 at a large inclination.
- the rear inclined portion 63 is configured to reach the trap inlet 22 of the ball bottom portion 13 below the surface of the reservoir water RS.
- the inner wall of the toilet bowl portion 12 on the side of the toilet bowl has, as shown in FIG. 22, left and right inclined portions 6 4 R, 6 4 following the upper edge peripheral wall 55 below the rim 14.
- the left and right slopes 65 R and 65 are greatly inclined.
- the inclined portions 64R and 64L are connected to the inclined portion 60 on the front side of the toilet, and serve as a washing water receiving surface when the flow of the second mainstream S2 is corrected as described above, and the rearward inclination of the rear side of the toilet. Connected to part 6 3. Although the inclined portion 64 L guides the first main flow S 1 to the vicinity of the reservoir RS, the first main flow S 1 flows diagonally from the rear to the front, so that the first main flow S 1 merges with the accumulated water after that. Guidance for giving the turn is provided at the lower end shelf 62 as described above.
- the slopes 65R and 65L are connected to the slope 61 at the front of the toilet and to the rear slope 63 at the rear of the toilet.
- the inclined portion 65R and the rearward inclined portion 63 following this receive the second mainstream S2 corrected as described above and join and guide it to the reservoir RS, and the second mainstream S2 after joining is collected.
- the slope 65 R and the rear slope 63 are both made to have a large slope, and the state of the slope is caused by the rise of the water level in Fig. 22 caused by the inflow of washing water into the water RS.
- the water level rise ⁇ ⁇ is about 1 Z5 to 2 Z5, and the expansion ratio of the reservoir surface area when the water level rises is within about 40% of the original area.
- the second main stream S2 joins the pooled water RS with such a large inclination, and is guided by turning at these inclined portions even after the pooled waters merge. For this reason, the turning state of the washing water, which occurs when the second main stream S2 joins the pooled water RS, as shown in FIG. 20, the lead S2L of the turning in the depth direction of the pooled water RS increases.
- the degree of the slope is increased by the above-mentioned increase in the reservoir water level ⁇ H and the expansion of the reservoir area by AS.
- the angle between the water surface of the reservoir and the cross-sectional peripheral wall of the peripheral wall must be steep so that it is approximately 5 to 25 °. You can also. In this way, the second main flow S2 guided by each of the above-described inclined portions can be made into a swirling flow of the large lead S2L.
- the swirling flow caused by the second main flow S 2 to the accumulated water RS so as to increase the swirling lead pushes the accumulated water RS based on the swirl toward the ball bottom 13 side, that is, toward the trap inlet 22.
- this pushing also affects the swirling flow of the swirling lead generated by the first main flow S1, so that the dirt and swirling washing water swirling on the swirling flow of the first main flow S1 are generated. Push itself towards trap inlet 22. For this reason, it is possible to further enhance the performance of pushing the stored water RS and waste. Even when such a pushing is applied, the swirling flow does not disturb in the swirling direction.
- the toilet bowl portion 12 has a pole-shaped bottom portion 13 in a mortar shape, the turning radii of the above-mentioned swirling flows toward the trap inlet 22 gradually decrease, and the momentum of the swirling flow increases. I will do it. Therefore, the performance of the pushing by the swirling flow described above is further improved.
- the stored water swirl based on the first main flow S 1 and the second main flow S 2 described above occurs, the washing water and filth in the toilet bowl section 12 enter the siphon trap 20 through the trap inlet 22 ( Pushed in) is discharged from the siphon trap 20 as follows.
- the detailed configuration of the siphon trap 20 will be described prior to the description of the state of waste discharge. Fig.
- FIG. 23 is an explanatory view of the pipeline taken along the line 23-23 in Fig. 15 to explain the configuration of the pipeline of the siphon trap 20, and Fig. 24 is a sectional view of the descending pipeline section 28.
- Fig. 15 and Fig. 23 are cross-sectional views taken along the line 24-24 of Fig. 23.
- Fig. 25 shows the descending pipeline 28 along the line 25-25 of Figs. 15 and 23.
- FIG. 26 is a cross-sectional view of the downcomer 28 taken along the line 26-26 in FIGS. 15 and 23.
- the top pipe section 26 extends rearward of the toilet continuity with the ascending pipe section 24, and flushes flush water from the top weir 30 to the descending pipe section 28.
- the top pipe section 26 has a pipe cross-sectional area larger than that of the rising pipe section 24, and as described later, the uppermost part 7 of the inner wall of the top pipe section 26. The air sealing can be achieved at zero.
- the top weir 30 has a tongue part 71 protruding from the descending duct part 28 so as to guide the washing water over the weir and flowing down to the descending duct part 28. Therefore, the washing water that has reached the top weir 30 flows down to the descending pipeline part 28 under the guidance of the tongue part 71, so that the below-described upper pipeline shelf of the descending pipeline part 28 has Part 7 and the lower pipeline shelf 7 are surely reached, catching at these shelves, causing rebound, and flowing down downstream. Since the tongue 71 is curved downward as shown in the figure, the lower surface area becomes an air pool when the washing water is discharged.
- the descending pipeline section 28 includes a curved pipeline section 72, an intermediate pipeline section 73, and a terminal pipeline section 74 from the side of the top pipeline section 26.
- the descending pipeline section 28 reduces the area of the pipeline cross section by connecting the curved pipeline section 72 and the intermediate pipeline section 73 to the end pipeline section 74. Prepare to change gradually.
- the curved pipe section 72 and the intermediate pipe The cross-sectional area of the road section 73 decreases and gradually changes along the direction of passage of the washing water passing through these pipe sections, and the gradually changing state is shown in FIGS. 24 and 25. As shown in the figure, the toilet is narrowed toward the pipe axis in the left-right direction.
- the curved pipeline section 72 includes an upper pipeline shelf section 75 at a connection portion of the intermediate pipeline section 73.
- the upper pipeline shelf 75 receives the washing water flowing down from the top weir 30 guided by the tongue 71, causing the washing water to bounce off, and flowing the washing water downstream to the intermediate pipeline 73. Into the box.
- the intermediate pipeline portion 73 includes a lower pipeline shelf 77 at a connection portion of the terminal pipeline portion 74.
- the lower pipeline shelf 77 receives the wash water flowing down from the tongue 71 and the wash water transmitted from the upper pipeline shelf 75 to the outer peripheral wall 76 of the intermediate pipeline 73. Then, the washing water is rebounded, and the washing water is dropped into the downstream end pipeline 74.
- the terminal pipe section 74 is so-called slip-in to a drain port (not shown), and connects the descending pipe section 28 to this drain port.
- the terminal conduit portion 74 has a through hole 78 opened at the lower end thereof, leaving a lowermost shelf portion 80, and this through hole 78 functions as an aperture having a small opening area.
- the lowermost shelf 80 receives the washing water that has rebounded to the toilet pole portion 12 at the upper pipeline shelf 75 and the lower pipeline shelf 77, and causes the flushing water to bounce off. Through the through holes 7 and 8 to the drain.
- the washing water flowing over the top dam 30 and flowing down to the descending pipeline section 28 is formed.
- the washing water is received and bounces off at the lower pipeline shelf 77, and when the flow rate is large, the washing water is washed at both the upper pipeline shelf 75 and the lower pipeline shelf 77.
- the washing water is drained to the drain outlet after the washing water is received and rebounds at the lowermost shelf portion 80 of the end pipe portion 74.
- the positional relationship between the outer peripheral wall portion 76 of the intermediate pipeline portion 73 and the tongue portion 71 of the top weir 30 is based on the assumption that the water supply flow rate (discharge amount) from the washing water supply device is used in this embodiment. Even at the lowest flow rate (about 40 liter min) However, it is ensured that the washing water flowing down from the top dam 30 bounces off the lower pipeline shelf 77 without fail. Further, the pipe area of the intermediate pipe section 73 and the opening area of 78 in the end pipe section 74 are determined even if the flow rate of the water supplied from the washing water tank 100 described above is the minimum flow rate described above. However, it is assumed that washing water is stored as described later.
- FIG. 27 is an explanatory diagram for explaining the behavior of the washing water at the beginning of the washing start
- Fig. 28 is an explanatory diagram for explaining the manner in which the washing water is stored in the terminal pipeline 74
- Fig. 29 is FIG. 4 is an explanatory diagram illustrating a situation in which a siphon effect occurs.
- flush water flows from the flush water tank 100 into the rim water conduit 16.
- the washing water flows into the reservoir RS.
- the washing water that has entered the rising pipe section 24 is pushed into the washing water that has flowed into the storage water RS, so that the water level in the rising pipe section 24 rises.
- the pushing of the washing water is caused by the swirling flow based on the merging of the first main flow S1 and the second main flow S2 into the pool water R S in substantially the same direction in the same rotation direction as described above.
- the flush water thus pushed in flows from the rising pipeline 24 to the descending pipeline 28 over the top weir 30 of the top pipeline 26.
- the washing water is received by the upper pipeline shelf 75 and the lower pipeline shelf 77 of the descending pipeline 28 and rebounds.
- the washing water that has rebounded in this manner changes the direction of the washing water flow toward the downstream end pipeline 74, and flows down further downstream.
- a pipe with air entrainment in the descending pipeline is formed. Downstream flow, the downflow speed of the wash water due to the change in the flow direction comes down to reach the downstream terminal pipeline 74. Due to such cleaning water behavior, downstream of the upper pipeline shelf 75, sealing of the downstream pipeline with the cleaning water starts as follows.
- the washing water is supplied at the above minimum flow rate, since the washing water is stored and stored, the flowing speed is reduced due to the above-mentioned rebound on the shelf portion.
- the flow rate of the wash water flowing down the top weir 30 and flowing down to the descending conduit section 28 exceeds the flow rate of the wash water flowing to the discharge port via the terminal conduit section 74. Therefore, at the beginning of the cleaning, the storage of the cleaning water in the terminal pipeline 74 and the discharge to the drain can be caused in parallel. Then, the amount of stored washing water in the terminal pipe part 74 increases as the flow of the washing water into the descending pipe part 28 continues.
- the flow of the washing water flowing over the top weir 30 and flowing down to the descending pipeline 28 as shown in FIG. 28 shows the tongue 7 1 of the top weir 30 It acts like a water curtain from the upper pipeline shelf 75 or the lower pipeline shelf 77.
- the air remaining in the uppermost part 70 of the inner wall of the top pipe part 26 from the beginning remains sealed in the uppermost part 70 of the inner wall, and depending on the above-mentioned entrainment by the washing water, the downcomer pipe
- the air that has not been discharged from the channel portion 28 has already been formed in the downcomer channel portion 28, so that the water column rises and is sealed in the uppermost portion 70 of the inner wall.
- air may accumulate on the lower surface of the tongue 71.
- the washing water is stored and discharged, and is in a sealed state, so that air does not enter through the through hole 78.
- the formed water column is not cut off by the sealing air and the infiltrating air, so that the siphon action generated as described above is continued. Therefore, the dirt in the toilet bowl 12 is forcibly sucked and discharged into the siphon trap 20 together with the stored water RS by the siphon action.
- the descending pipeline section 28 is configured such that the pipeline area becomes smaller toward the descending side. Therefore, the storage of the washing water that has fallen into the descending pipeline section 28 beyond the top dam 30 is promoted in the terminal pipeline section 74, so that the state of storing the cleaning water can be more reliably caused. it can. Therefore, it is necessary to enhance the reliability of the above-described air discharge, the occurrence of the siphon action due to the sealing, and the continuation. Can be. In other words, the forced suction of the filth etc. is ensured by the siphon action, and the filth discharge performance can be enhanced.
- Fig. 30 is an explanatory diagram showing the installation status of a U-shaped pipe to confirm the occurrence and continued occurrence of siphon action under air remaining conditions
- Fig. 31 is a graph showing changes in the liquid level of the U-shaped pipe. is there.
- the liquid level in the U-tube 90 changed to the positive pressure side at the beginning of the siphon, and then became negative.
- This can be considered as follows.
- a part of the downcomer pipe is sealed with a small amount of washing water at the beginning of washing, so that when washing water is pushed into the siphon trap by swirling at the beginning of washing, residual air is removed.
- the pressure in the pipeline increased due to the compression.
- the reason why the negative pressure was observed after the generation of the positive pressure can be explained by the forced suction of the washing water in the pipeline due to the siphon. Therefore, it is considered that a toilet bowl that causes such a U-tube liquid level transition will cause the flushing water to be pushed by the strong pushing force in the state of remaining air, and then the siphon action to occur and continue.
- the head pressure is about 1 kPa.
- This head pressure is about 1 Z2 to 1 Z3 compared to the head pressure of the existing tank-type siphon trap toilet (about 2.5 kPa). Yo Then, it is described whether toilet flushing can be performed without any trouble even at such low head pressure.
- the large toilet bowl is a siphon trap type toilet bowl as described above, which has a siphon trap with a substantially uniform pipe area, and causes swirling of the accumulated water by discharging flush water to the bowl of the toilet bowl. It is.
- a general fine particle residual number test and a PP (polypropylene) ball residual number test were performed as indicators of waste discharge capacity.
- the fine particle residual number test about 250 microparticles having a particle size of about 4.5 mm were floated on the stored water, and the toilet was washed in this state. In this test, if the number of remaining fine particles is within 125, it is considered that the waste is capable of discharging waste.
- Fig. 32 is an explanatory diagram illustrating the toilet bowl in comparison with the toilet bowl 10 of the present embodiment, comparing the flow rates of water supply to the toilet bowl, inflow to the bowl, and discharge of washing water from the trap.
- FIG. 33 is an explanatory diagram showing the results of evaluation tests performed on the toilet 10 of this example and the above-mentioned comparative toilet.
- the toilet bowl 10 of this embodiment has a relatively large flow rate of water supplied to the bowl, a flow of water into the bowl, and a flow of flush water discharged from the trap. Despite the lower flow rate than the toilet bowl, the results of the evaluation test have increased significantly. In other words, the toilet bowl 10 can significantly increase the washing capacity with the current total amount of washing water (approximately 5.5 liters), which is considered to be highly effective in saving water. This is because, in the present embodiment, since the above-mentioned siphon action is reliably occurring, strong filth ⁇ water suction is working, and the first main stream S 1 and the second main stream S 2 are substantially parallel.
- the toilet bowl 10 of the present example showed that both of the comparative examples It was able to demonstrate a higher cleaning capacity than the toilet bowl. Also in this example, in the present embodiment, since the above-mentioned siphon action is reliably occurring, strong dirt-reservoir suction force is working, and the first main flow S 1 and the second main flow S 2 are substantially parallel. In addition, it can be said that the swirling flow pushing based on the merging in the same rotation direction works with high efficiency.
- the number of PP poles remaining in the pool water was reduced despite the small amount of washing water supply of 5 liters (substantially about 4 liters). This can be said to be the result of the swirling flow pushing based on the merging of the first main flow S 1 and the second main flow S 2 substantially parallel and in the same rotational direction with high efficiency.
- FIG. 34 is an explanatory diagram showing a comparison result of the swirl flow intrusion efficiency between the example product and the comparative example product. The comparative test was performed on the PP ball remaining number test.
- the swirling flow is pushed with high efficiency based on the merging of the first main flow S1 and the second main flow S2 in substantially the same direction in the same rotation direction.
- the above-described high cleaning ability can be exhibited by supplying cleaning water at a low flow rate and a low head pressure.
- the amount of wash water supplied to the toilet was confirmed.
- the amount of wash water supplied was about 80 liters in the toilet bowl 10 of the present embodiment, and the The result was about 150 liters Z min.
- the existing toilet bowl did not adopt the reduced flow rate / lower head pressure because the remaining air in the siphon trap could not be expelled from the trap line at the beginning of cleaning.
- it is possible to realize high capacity with low flow rate and low head pressure water supply. Was.
- the toilet body 11 of the toilet bowl 10 in this embodiment is a water supply at a low head pressure. It is possible to wash the toilet properly. Therefore, the flush water tank 100 of the present embodiment, which lowers the full water level and lowers the flush water supply head pressure, is capable of flushing the toilet with low flush head water supply, as well as the toilet body 11 described above. It can be suitably applied to other possible toilets. Further, according to the drain valve device 110 of the present embodiment, there are the following advantages. As described above, the drain valve device 110 maintains and closes the through hole 1 28 via the float 122 to maintain the valve body 1 12 open during large washing. Thereafter, the valve can be closed.
- flush water drainage and drainage stop can be controlled by the behavior of the float alone, and no valve mechanism other than the float is required. Therefore, according to the drain valve device 110 of the present embodiment, the valve configuration can be simplified, the assembly and manufacturing work can be simplified, and the cost can be reduced.
- FIG. 35 is an explanatory diagram showing a cross-sectional view of a main part of a drain valve device 110A of a modified example.
- This modification is different from the first embodiment in that the valve body 112 is stopped at one of the rising end position and the intermediate position just before the rising end position.
- the same reference numerals are used for those having the same functions as those of the above embodiment.
- the hollow shaft 114 having the valve body 112 at the lower end has a large diameter above the lid body 126.
- the large-diameter portion of the hollow shaft 1 14 is covered with an outer cylinder shaft 114 A.
- the outer cylinder shaft 114 A has a hollow shank at a lower end jaw 1 54.
- the small diameter part of the shaft 114 supports the step part 155 of the large diameter part. Therefore, if the outer cylinder shaft 114A is lifted, the outer cylinder shaft 114A and the hollow shaft 114 are raised integrally. On the other hand, if the hollow shaft 114 is lifted, only the hollow shaft 114 rises alone.
- the jaw 154 has projections (not shown) on its lower surface at an equal pitch, so that a gap is formed between the lower surface of the jaw 154 and the upper surface of the lid 126, and the jaw 1
- the through hole 1 2 8 is not blocked by 5 4.
- the drain valve device 110 has a latch mechanism 160 on the top surface of the lid 126.
- the latch mechanism 160 has a latch claw 161 biased toward the hollow shaft so that the engagement between the latch claw 161 and the two shafts is different.
- the latch mechanism 160 engages with the engagement hole 162 of the outer cylinder shaft 114A and the engagement hole 16 of the hollow shaft 114. Do not engage the latch claws 1 6 with the. Accordingly, when the hollow shaft 114 is lifted together with the outer cylinder shaft 114A, the hollow shaft 114 can be raised to the rising end position.
- the drain valve device 11 OA of the modified example when the valve body 112 is opened, the float 122 prevents the through hole 128 from being clogged and prevents this from being blocked. it can. For this reason, as described above, the drain valve device 11 OA can also drain the cleaning water in the tank so that the amount of cleaning water during large and small cleaning differs.
- FIG. 36 is an explanatory view schematically showing a main portion of the upper end of the sleeve of the drain valve device 11 OB of the modified example.
- FIG. 3F is a main portion of the upper end of the sleeve of the drain valve device 11 OB. It is a perspective view which shows schematically.
- the drain valve device 11 OB has a lift mechanism 170 for lifting the hollow shaft 114 at the upper end of the sleeve 124, more specifically, at the upper surface of the lid body 126.
- the lift mechanism 170 includes a column 171, which stands upright from the upper surface of the lid 1 26, and has a large cleaning hinge 172 and a small cleaning hinge 173 between the columns. I do. These two hinges are individually swingable around a pin 174 supported at both ends by a column 171.
- the large cleaning hinge 1 72 is provided with a push piece 1 76 that is pushed in the direction of the arrow La in the figure by a pressing shaft 17 5 of a large cleaning press button (not shown), and It has connected lifter pieces 1 7 7.
- the lifter piece 177 extends toward the upper shaft end 114 a of the hollow shaft 114.
- the small cleaning hinge 1 73 is a push piece 1 7 9 pushed in the direction of the arrow L b in the figure by a pressing shaft 1 7 8 of a small cleaning pressing button (not shown), and a large cleaning hinge extending from one end of this push piece. It has an open-loop support arm 180 extending up to the column 17 1 on the side of 17 2.
- the small cleaning hinge 1 7 3 is arranged between the columns 17 1 with the push pieces 1 7 9 of the small cleaning hinge 1 7 9 being aligned with the push pieces 1 7 6 of the large cleaning hinge 1 as shown in the figure. . In this state, the small cleaning hinge 173 is supported by the pin 174 together with the large cleaning hinge 172.
- the small cleaning hinge 173 moves the supporting arm piece 180 around the pin 174 as shown by the arrow Lb1 in the figure. Rotate to.
- the supporting arm piece 180 is supported as described above so as not to interfere with the lifter piece 177 of the large cleaning hinge 172, so that the small cleaning hinge 173 is an arrow alone. Rotate like L b 1
- the large cleaning hinge 17 2 rotates the lifter piece 17 7
- the supporting arm piece 180 is lifted from below by the rotating lifter piece 177 and rotates together with the push piece.
- the lift mechanism 170 has a lifter piece 181 in order to convert the rotation operation of each hinge piece described above into a lifting operation (lift operation) of the hollow shaft 114.
- the lifter piece 1811 is fixed to the upper end of the hollow shaft 114 by a fixture (not shown) and extends upward, and has an engagement shaft 182 at the upper end.
- the engagement shaft 18 2 enters the engagement hole 18 3 of the support arm 180.
- the state of lifting of the hollow shafts 114 by the lifting mechanism 110 of this configuration is as follows.
- the large cleaning pressing button When the large cleaning pressing button is operated, the large cleaning hinge 17 2 rotates the lifter piece 17 7, and lifts the supporting arm piece 180 from below with the lifter piece 17 7. Rotate arm 180 as well.
- the hollow shaft 114 rises through the lifter piece 181.
- the large cleaning hinges 1 and 2 move the lifter piece 177 away from the upper end 114 a of the shaft, the hollow shaft 114 is positioned at the rising end position shown by the two-dot chain line in FIG. That is, it rises to a position where the through hole 128 is closed by the float 122. Therefore, in this case, a specified amount of water (approximately 5.5 liters) of flush water can be supplied to the toilet similarly to the operation of the large flush push button 144 in FIG.
- the small washing hinge 1 73 rotates the supporting arm 180 to raise the hollow shaft 114.
- the large cleaning hinge 172 has its lifter piece 1777 positioned above the shaft upper end 114a. Therefore, the hollow shaft 114 rises only to a position where the upper end 114 a of the shaft contacts the lifter piece 177. Therefore, since the hollow shaft 114 stops at the position before the through hole 128 is closed by the float 122, the phenomenon occurs when the small cleaning push button 144 shown in Fig. 5 is operated. , A smaller amount of water than in the above large washing The flush water can be supplied to the toilet. Therefore, the flush water in the tank can be drained by the drain valve device 11 OB incorporating the lift mechanism 170 so that the amount of flush water at the time of large and small flush differs.
- FIG. 38 is an explanatory view for explaining a drain valve device 110 C of another modification. This modification is characterized in that the amount of flush water stored in the upper reservoir 130 can be adjusted.
- the drain valve device 11 OC has an outer sleeve 1885 on the upper end side of the sleeve 124.
- the outer sleeve 185 is attached to the sleeve 124 via a seal ring 186, and slides up and down with respect to the sleeve. Therefore, in the drain valve device 110 of this modified example, by adjusting the vertical position of the outer sleeve 180, the amount of washing water stored in the upper water storage section 130 can be adjusted. Therefore, there are the following advantages.
- the outer sleeve 1185 itself can be used as the peripheral wall of the upper water storage section 130, as shown in FIG. 38, the lid 1 26 is attached to the uppermost end of the sleeve 1 24. It may be provided.
- the air inflow situation occurs at a time that depends on the manner in which the water level in the tank drops, and the end of the leak depends on the manner of the leak (the amount of leaked water and the amount of remaining washing water). Get up at the right time. Since the amount of leaked water can be assumed to be constant if there is no change in the above gap, the timing of the end of leak can be adjusted by adjusting the amount of remaining washing water, that is, the amount of stored washing water in the upper water reservoir 130. . More specifically, if the amount of stored and washed water is reduced, the leakage will be completed in a short period of time, and the situation will end sooner if the amount of washing water is large.
- the length of time required for the water level in the tank to reach the air inflow position below the sleeve and the above air inflow condition to occur (water level descent time) is adjusted according to the opening area of the drain port 108 and the full water level of the clean water in the tank. it can.
- the drainage opening 108 is an opening in the bottom wall of the tank, so it is difficult to adjust the opening area.
- the leakage time until the above-described leakage termination situation occurs can be easily adjusted by the simple adjustment of the outer sleeve 18 up and down sliding. Therefore, according to the drain valve device 11 OC of this modified example, it is possible to easily adjust the length of the water level descent time and the leakage time.
- Adjustment of the amount of flush water stored in the upper water storage section 130 is carried out at the factory of tank equipment and toilet bowls. It should be done according to the tank full water level at the time of loading or maintenance. In addition, when collecting and recycling used drain valve devices 11 OC, the amount of washing water that is stored and adjusted according to the newly installed tanks can be adjusted, thus increasing reusability.
- the adjustment of the leak time through the adjustment of the amount of stored washing water in the upper water storage section 130 is performed by determining the washing water tank and the toilet to which the drain valve device 11 OC of this modified example is applied (for example, Water, etc.). Therefore, the versatility of application can be improved.
- FIG. 39 is an explanatory diagram illustrating a drain valve device 110D of another modification.
- the drain valve device 110 has a peripheral wall 130a of the upper water storage section 130 higher than the above.
- a plurality of wall through-holes 187 are provided at positions different in height from the lid 126.
- a notch groove 188 that is cut out vertically is formed in the peripheral wall 130a.
- the wall surface through hole 187 and the notch groove 188 are formed at equal pitches (for example, a pitch of 45 degrees in the circumferential direction) in the peripheral wall 130a.
- the drain valve device 110D is configured to slide the outer sleeve 180 up and down to change the unblocked bottom wall through-hole 187 and to change the notch groove 18 Change the opening length at 1 8 8 a. Even with the drain valve device 110D having such a configuration, the amount of washing water stored in the upper water storage section 130 can be adjusted, so that the same effect as the drain valve device 11 OC described above can be obtained. it can.
- FIG. 40 is an explanatory diagram for describing a main part of a drain valve device according to another modification. This modification is characterized in that it is possible to adjust the state in which the washing water stored in the upper water storage section 130 flows out of the sleeve.
- the peripheral wall 130a surrounding the upper water storage section 130 has wall through-holes 190 around it at a constant pitch (for example, a pitch of 45 degrees in the circumferential direction).
- a band-like ring 19 1 is attached to the upper water storage section 130 in close contact with its inner wall. It has been incorporated.
- the opening area of the entire wall-surface through-hole 190 is adjusted by adjusting the height of the assembly. It is also possible to adjust the opening area of the entire wall through-hole 190 by closing some of the wall through-holes 190 with plugs or the like.
- the band-shaped ring 1921 can be replaced with a band-shaped ring 1992 having a through hole 1992a around it.
- the opening area of the entire wall through-hole 190 can be adjusted by the overlapping state of the through hole 1992a of the belt itself and the wall through-hole 190.
- the band-shaped ring 1992 has two through holes 1992a, but the present invention is not limited to this, and it is assumed that the number is equal to the number of wall through holes 190 of the peripheral wall 130a. It is also possible to form the through hole 192a in a horizontally long shape.
- the wall through hole 190 may be a slot-shaped opening 190a as shown by a two-dot chain line in the figure.
- the belt-shaped ring may be mounted on the outer periphery of the peripheral wall 130a.
- the upper water storage section 130 submerges in the washing water in the tank and stores the washing water when waiting for washing.
- the upper reservoir 130 is exposed to the water surface as the water level in the tank lowers, and when the water level in the tank reaches the opening of the wall through hole 190, when the water level subsequently drops, the upper water reservoir 130
- the washing water stored outside from the part 130 flows out from the through hole 190 in the wall surface.
- the upper reservoir 130 stores only an amount determined by the opening state of the wall through hole 190. If the opening area of the entire wall through hole 190 is small, this washing water outflow occurs at a small flow rate, and if the area is large, it occurs at a large flow rate.
- the amount of time that elapses before a good storage situation occurs will vary. Therefore, even with such an area adjustment, the leakage time of the stored cleaning water from the start of the cleaning can be adjusted, so that the range of the adjustment of the water level descent time and the leakage time can be widened.
- the adjustment of the leak time through the adjustment of the opening area of the through hole may be performed according to the requirements of the washing water tank or the toilet to which the drain valve device of this modified example is applied (for example, the regulation of the amount of washing water). it can. Therefore, the versatility of application can be enhanced, and the reuse efficiency is also enhanced.
- FIG. 41 is an explanatory diagram illustrating a drain valve device 110E of another modified example in a cross-sectional view
- Fig. 42 is an explanatory diagram illustrating the drain valve device 11 OE in a side view. is there.
- This modification is characterized in that the opening state of the air inlet hole 134 at the lower end of the sleeve 124 is adjusted.
- the drain valve device 110 E of this modified example has an elongate air inlet hole 134 a extending vertically and an outer sleeve 185 at the lower part of the sleeve 124. Yes.
- the air inlet holes 134a are formed at equal pitches around the sleeve, and the upper end position of each air inlet hole 134a is changed by sliding the outer sleeve 185 up and down. .
- the upper end position of the opening of the air inlet 1 34 a is defined by the lower edge 1 85 a of the outer sleeve 1 85, and the degree of overlap between the outer sleeve 1 85 and the air inlet 1 34 a It is adjusted by.
- the position of air inflow from the outside to the inside of the sleeve through the air inflow hole 134a can be changed in the sleeve height direction. Therefore, it is possible to adjust the timing of inducing the air to flow into the sleeve when the water level in the tank decreases. This inflow of air causes the buoyancy of the float 122 to decrease as described above, and closes the valve element 112, so that the amount of drainage water can be adjusted.
- Such adjustments can be made at the time of factory shipment and maintenance of the tank device and toilet according to the desired amount of washing water (large washing water).
- the timing of inducing air inflow that is, the amount of flush water at the time of stool, can be adjusted in accordance with the newly installed tank, thus increasing reusability.
- the position of the outer sleeve 18 5 must be adjusted according to the requirements of the flush water tank or toilet to which the drain valve device 11 OE of this modification is applied (such as the regulation of flush water volume). Can increase the versatility of application.
- FIG. 43 is an explanatory diagram showing a cross section of a main part of a drain valve device 110F of another modified example.
- This drain valve device 1OF has a float 122 integrated with a hollow shaft 114, a point where a float floating area is formed by a sleeve 124, a through hole 1 It has the same configuration as that of the above-described embodiment in that it has the following, and differs in the configuration in the following points.
- the hollow shaft 114 has a cup portion 202 expanded in a cup shape at the upper end thereof.
- the rubbing portion 202 is located above the lid 126 and is submerged in the washing water in the tank in the washing standby state shown in the figure.
- the central opening of the cup portion 202 is a cup portion valve seat 204, and the valve seat is provided with a cup portion valve 206 that opens and closes the cup portion.
- the cup valve body 206 is attached to the lower end of the upper hollow shaft 208, and when the shaft rises, the cup valve seat 204 is opened, and the washing water in the cup part 202 is drained. Discharge to the drain port 108 through the hollow part of the hollow shaft 114.
- the upper hollow shaft 208 is engaged with the lift mechanism as described in the previous embodiment, and is lifted when the toilet is washed.
- the drain valve device 11 OF having such a configuration is capable of reducing the head pressure applied to the valve body 112, the float 122, the buoyancy, and the buoyancy generated by the cup portion 202 under water in the washing standby state shown in the figure.
- the valve body 1 1 2 is closed on balance.
- This drain valve device 11 OF drains (supplies) different types of cleaning water for large and small cleaning as follows.
- a lifting mechanism (not shown) lifts the upper hollow shaft 208 and opens the cup valve element 206.
- the cleaning water inside the cup portion 202 and the cleaning water inside the tank above the upper end of the cup portion pass through the hollow shaft 1 14 through the opening of the nip portion valve seat 204. It is discharged from the drain port 108.
- the water level in the tank drops to the upper end of the cup portion 202, and in this state, the cup portion becomes empty and causes more buoyancy than before. Therefore, the water level in the tank is low. Since the head pressure decreases and the buoyancy increases due to the lowering, the above-mentioned balance is lost and the float 122 floats in the washing water in the sleeve.
- the valve body 1 1 2 at the lower end of the hollow shaft 1 1 4 opens apart from the valve seat 1 0 9 of the drain port 1 08, and the washing water in the tank is directly drained from the drain port 1 08.
- the float 122 receives the buoyancy of the cup portion 202 in addition to its own buoyancy, and the downward pushing force that depends on the pressure difference between the upper and lower surfaces of the valve body 112 also decreases. Then, it floats up to the lower surface of the lid 126 to close the through hole 128.
- the float 122 thus floated maintains the closed state of the through hole 128 until the water level in the tank reaches the air inflow hole 134 and air flows into the sleeve. Therefore, with the air flowing into this sleeve, the valve body 1 1 2 closes as described above, and the total drainage at this time is the amount until the water level in the tank reaches the air inlet 1 34 .
- the hollow shaft 114 When the upper hollow shaft 208 is lifted, the hollow shaft 114 can be lifted at the same time to open the valve element 206 and the valve element 112. Wear. Even in this case, as described above, it is possible to drain the washing water for the large washing.
- the holding portion that mechanically engages with the lifted upper hollow shaft 208 is supported by a rib or the like from the upper edge of the cup portion 202. Thus, when the upper hollow shaft 208 is lifted, the hollow shaft 114 is also lifted via the holding portion.
- the hollow shaft 114 When an operation for small cleaning is performed, the hollow shaft 114 is lifted by a lifting mechanism (not shown) while the valve body 206 of the nip portion is kept closed, and the valve body 112 is opened. I do. At this time, the hollow shaft 1 1 4 can be lifted to the rising end position until the float 1 2 2 closes the through hole 1 2 8, or can be lifted only to the intermediate position just before that .
- a lifting mechanism not shown
- the water level in the tank decreases with the discharge of the washing water in the tank from the drain port 108.
- the cup part 202 is closed because the cup part 206 is closed.
- the washing water stored inside it is exposed on the water surface as the water level drops. Since the degree of exposure increases as the water level decreases, the buoyancy of the cup portion 202 decreases as the water level decreases, and disappears when all the cup portions 202 come out of the water surface.
- the weight of the cup portion 202 and the washing water inside the cup portion 202 is applied to the float 122 via the hollow shaft 114.
- the float 122 closing the through hole 128 is pushed by the weight of the cup part 202 and the washing water inside and separated from the lid 126, and the through hole 128 is closed. Is eliminated.
- the float 122 falls to the surface after being exposed to the water surface.
- the valve body 112 descends together with the hollow shaft 114 to close the drain port 108.
- valve closing occurs before the water level in the tank reaches the air inlet 13 4 of the sleeve 12 4, so the total drainage in this case is such that the water level in the tank reaches the air inlet 13 4 and the valve body closes. It is less than in the case of the above-mentioned large washing in which the valve is raised.
- the cup portion 202 applies the washing water weight to the valve element 112 via the hollow shaft 114, so that the valve element 112 Close the valve.
- the washing water can be discharged (supplied) so that the amount of washing water differs between large and small washing.
- the full water level of the tank can be lowered as long as the power supply part 202 is submerged, so that the operability and drainage capacity are reduced as in the previous embodiment. Can be maintained.
- the weight of the cup part 202 itself and the weight of the washing water inside the cup part 202 are determined.
- the weight is always applied to the float 122 and the valve body 112. Due to this weight, the float in which the through-hole is clogged is separated from the lower surface of the lid shortly before the water level in the tank reaches the air inflow hole 134 due to this weight, and the closed state of the through-hole is quickly eliminated. Therefore, the total amount of wastewater can be reduced as compared with the case without a wait.
- the valve body 11 and 12 can be closed earlier by an amount corresponding to the weight, so that the total amount of drainage can be reduced as compared with the case where there is no water. In other words, even if drainage is performed with a different total drainage amount, the total drainage amount can be adjusted to a decrease side.
- a special weight is not required, which is advantageous in cost.
- the cup valve 206 of the cup 202 the position is the cup 202 near the full water level, so that the head pressure applied to the valve is small, and the valve opening operation is difficult. Easy.
- FIG. 44 is an explanatory diagram showing a cross-sectional view of a main part of a drain valve device 11 OG according to another modification.
- the drain valve device 110 G has an upper float 203 on a cup valve 206 of a cup 202, and a wall through hole 205 on a peripheral wall of the cup. Yes.
- the hollow shaft 114 has a large hollow diameter, and the washing water in the cup portion 202 is immediately discharged from the drain port 108.
- the drain valve device 11 OG balances the head pressure applied to the valve element 112, the float 122, the buoyancy, and the buoyancy generated by the submerged cup 202 in the washing standby state shown in the figure. Above, the valve body 1 1 2 is closed. Also, in the cup part 202, the valve part 206 of the cup part is closed based on the balance between the head pressure acting on the valve part 206 of the nip part and the float 203 of the upper float. ing.
- This drain valve device 11 OG drains (supplies) different types of cleaning water for large and small cleaning as follows. When an operation for small washing is performed, a lift mechanism (not shown) lifts the upper hollow shaft 208 and opens the cup valve element 206. In this case, the upper hollow chassis Since the buoyancy of the upper float 203 is acting on the shaft 208, the upper hollow shaft 208 can be lifted by applying a slight force.
- the washing water inside the nip portion 202 and the washing water in the tank located above the upper end of the nip portion are opened in the nip portion valve seat 204. After passing through the hollow shaft 1 14, it is discharged from the drain port 108. In this case, since the hollow shaft 114 has a large-diameter hollow portion, the discharge of the washing water in the tank proceeds promptly, and the water level in the tank drops rapidly.
- the washing water in the tank around the lip portion 202 enters the cup portion 202 through the wall through hole 205.
- the water is discharged from the drain port 108 through the cup valve seat 204. In other words, until the water level in the tank reaches the wall through-hole 205, the washing water in the tank above the through-hole is discharged.
- a lift mechanism (not shown) lifts the hollow shaft 114, and thus the valve element 112 is opened with the cup part valve element 206 closed.
- the washing water in the tank is discharged from the drain port 108, and the water level in the tank decreases.
- the drainage opening 108 has a large opening area, the washing water is discharged at a large flow rate, and the tank water level falls rapidly.
- the float 122 closes the through hole 128 by lifting the shaft.
- the cup valve seat 2 0 4 As the washing water in the cup is discharged from the tank, the water level drops inside and outside the tank. When the water level in the cup falls to some extent, the upper float 203 drops and the cup valve 206 closes. In this case, even outside the cup, the water level drops as in the cup due to discharge from the wide-diameter drain port 108, so that the upper float 203 is exposed to the water surface in the cup and its buoyancy disappears .
- the water level in the tank continues to drop and reaches the upper end of the sleeve 124. Thereafter, as in the above-described embodiment, when the water level in the tank drops to the air inflow hole 134, air inflow into the sleeve and air release into the sleeve through the through hole 128 occur.
- the valve element 1 1 2 closes.
- the flush water discharge amount is larger than that of the small flush described above because the water level in the tank is reduced to the air inlet hole 1 34.
- the 1 OG can also be used to discharge (supply) washing water so that the amount of washing water differs between large and small washing. Moreover, even with this drain valve device 11 OG, the full water level of the tank can be lowered as long as the cup portion 202 is submerged, so that the operability and drainage capacity can be maintained as in the previous embodiment. .
- FIG. 45 is an explanatory diagram showing a cross-sectional view of a main part of a drain valve device 110H of another modification.
- the drain valve device 11 OH is characterized in that the amount of water can be adjusted by adjusting the amount of washing water stored in the cup portion 202 of the hollow shaft 114.
- the drain valve device 110H has an inner cylinder sleeve 210 in the cup portion 202.
- the inner cylinder sleeve 210 moves up and down water-tightly along the inner peripheral wall of the cup portion 202 via the seal ring 211. That is, by changing the degree of protrusion of the inner cylinder sleeve 210 from the upper end of the cup portion 202, the amount of weight can be adjusted.
- the valve behavior in this drain valve device 110H is as follows.
- the seal (occlusion) in the obstruction seals 123 is loosened, and the gap at the obstruction becomes wider than when there is no wait. For this reason, the amount of leakage of the washing water stored in the upper reservoir 130 increases from this gap, so that the above-mentioned leakage time is shortened.
- the valve closing timing drainage termination timing
- the degree of this decrease is determined by adjusting the amount of weight, the amount of drainage at the time of large washing can be adjusted by adjusting the degree of protrusion of the inner sleeve 210.
- the float 122 When the hollow shaft 114 is lifted to the intermediate position for small cleaning, the float 122 is located below the lid 126 as described above, The weight will hang on float 1 2 2. For this reason, when the water level in the tank changes below the lower surface of the lid 126, the water level also changes in the sleeve, so that the float 122 is exposed to the water surface, and the float buoyancy decreases. At the same time, the float 1 2 2 (hollow shaft 1 1 4) also descends as the water level drops. In this situation, since the above-mentioned cup weight is applied to the hollow shaft 114, the pressing force of the valve body 112 is increased by that amount, and the valve body 112 closes quickly. In other words, the amount of drainage of washing water can be reduced even during small washing, and the amount of drainage during small washing can be adjusted by adjusting the degree of protrusion of the inner sleeve 210 (weight adjustment).
- the adjustment of the degree of protrusion (weight adjustment) of the inner cylinder sleeve 210 is determined by determining the washing water tank or the toilet to which the drain valve device 11 OH of this modification is applied (for example, Water, etc.). Therefore, the versatility of application can be improved, and the reuse efficiency is also improved.
- FIG. 46 is an explanatory diagram showing a cross-sectional view of a main part of a drain valve device 110I of another modification.
- the drain valve device 110I is characterized in that the height position of the cup portion 202 of the hollow shaft 114 can be adjusted.
- this drain valve device 110I has a male screw portion 214 on the outer periphery of a hollow shaft 114, and a female screw portion 2 screwed to the cup portion 202.
- the cup portion 202 changes its height position by being rotated left and right.
- the timing at which the cup portion 202 is exposed to the water surface that is, the timing at which the weight is applied can be adjusted. Therefore, it is possible to change the timing of releasing the inside of the sleeve to the atmosphere due to leakage through the gap in the closed state of the through hole 128 and the disappearance of the closed state accompanying the release.
- the drain valve device 110 I of the modified example a new method of adjusting the total drainage can be provided.
- the height position of the power supply portion 202 is adjusted according to the requirements of the washing water tank and the toilet to which the drain valve device 11 OH of this modified example is applied (for example, regulation of the amount of washing water).
- This can increase the versatility of application and increase the efficiency of reuse.
- the one having such a cup portion 202 can be modified as follows. In other words, a wall through-hole as shown in FIG. 40 is formed in the wall of the cup 202, and the opening state (total opening area) of the cup-wall through-hole is adjusted with the band-like ring of FIG. You can also do so.
- the amount of water per hour (outflow amount) that flows from the inside of the nip portion 202 to the outside can be adjusted. .
- the weight exerted on the hollow shaft 114 and the float 122 by the cup portion 202 changes over time, and the rate of change can be changed.
- the shielding area of the through hole is small and the total area of the opening is large, the outflow per hour will be large, Can be made smaller.
- the gate can be reduced only gradually.
- the adjustment of the opening state (total opening area) of the cup wall through-hole in the cup part 202 can be performed according to the requirement of the washing water tank and the toilet (for example, the regulation of the amount of washing water).
- the versatility of this can be improved, and the reuse efficiency also increases.
- FIG. 47 is a perspective view schematically showing a main part of a drain valve device 11 OK of a modified example in which the state of the through-hole closure is different.
- This drain valve device 11 OK is characterized by the formation of a through hole in the lid 126.
- the drain valve device 110 K has a cover body 126 with through holes 128 and auxiliary through holes 128 a formed around it at equal pitches.
- the through hole 128 has a diameter such that the hollow shaft 114 can be arranged through the hole with almost no play.
- both the through hole 128 and the auxiliary through hole 128 a Blocked by float 122. After this blockage occurs, after air inflow from the lower end of the sleeve occurs, this inflow air passes through the through hole 128 and the auxiliary through hole 128a to release the air inside the sleeve. Wake up. As a result, the valve element 112 is closed as described above.
- the drain valve device 11 OK of this modification has the following advantages.
- the auxiliary through hole 128a can be selectively closed by a plug or the like, and the total area of the unblocked auxiliary through hole 128a in the lid 126 can be changed.
- the unblocked auxiliary through-holes 128a are holes that cause the above-mentioned leakage of the stored washing water in the upper reservoir 130, and the total area of the unblocked auxiliary through-holes is the degree of this leakage (leakage time). ). Therefore, by adjusting the closed state (for example, the number of closed blocks and the closed area) of the auxiliary through hole 128a, it is possible to easily adjust the length of the water level descent time and the leak time as described above. This makes it possible to adjust the amount of drainage of the cleaning water and to improve the reusability and versatility of the drain valve device.
- FIG. 48 is an explanatory diagram showing a cross section of the periphery of the valve element 112 and showing the valve element 112 when viewed from the lower end direction.
- FIG. 49 is an explanatory diagram showing a cross section of a main part of a drain valve device 200 of another embodiment.
- the drain valve device 200 is characterized in that the water level inside and outside the sleeve is delayed.
- the drain valve device 200 is provided with a hollow shaft 114 integrally having a float 122 similarly to the drain valve device shown in FIG. 0 has two.
- the cup part 202 opens and closes the cup part valve seat 204 with the cup part valve element 206.
- the drain valve device 200 has a sleeve 220 provided with a partition wall 222 for vertically dividing the inside thereof, the upper part of the partition wall being a floating and sinking area of the float 122, and the lower part of the partition wall being a valve element 1.
- the partition wall 222 has a small-diameter communication hole 226 communicating the upper and lower regions thereof.
- the communication hole 226 functions as a throttle that restricts the flow of the cleaning water in the sleeve from the upper part of the partition wall to the lower part of the partition wall.
- the sleeve 220 has a cylindrical protrusion 222 in the center of the partition wall 222. .
- This cylindrical projection 2 24 guides the vertical movement of the hollow shaft 114.
- the tip of the cylindrical projection 224 is prevented from touching the float 122.
- the valve head 1 1 2 is balanced by the head pressure applied to the valve 1 1 1, the float 1 2 2 buoyancy, and the buoyancy generated by the cup portion 202 under water. 2 is closed.
- the drain valve device 200 drains (supplies) different types of cleaning water for large and small cleaning as follows.
- a lift mechanism (not shown) lifts the upper hollow shaft 208 and opens the cup valve element 206.
- the washing water inside the cup part 202 and the washing water in the tank above the upper end of the cup part pass through the hollow shaft 114 through the opening of the cup part seat 204, and drain water 1 Emitted from 08.
- the water level in the tank decreases with the discharge of the washing water, which causes a decrease in head pressure.
- the float 122 floats in the upper partition area of the partition wall 222 of the sleeve 220. In this case, float floating is mechanically restricted when the valve element 1 "I2 reaches the lower surface of the partition wall 22.
- the float buoyancy of the float 1 22 and the inside of the cup are empty.
- the buoyancy generated by the submerged cup portion 202 acts on the valve body 112 to maintain the valve body on the lower surface of the partition wall 222. Therefore, the valve body 112 is Keep the valve open.
- the hollow shaft 114 When the upper hollow shaft 208 is lifted, the hollow shaft 114 can be simultaneously lifted to open the cup valve 206 and the valve 112. . Even in this case, as described above, it is possible to drain the washing water for the large washing. To lift the hollow shafts 114 at the same time, hold the holding part that mechanically engages with the lifted upper hollow shaft 208 with ribs from the upper edge of the cup part 202. . Thus, when the upper hollow shaft 208 is lifted, the hollow shaft 114 is also lifted via the holding portion.
- the cup portion 202 Since the water level in the tank continues to drop during this valve opening, the cup portion 202 gradually The buoyancy of the cup portion 202 is reduced when it is exposed to the water surface. Then, when the cup portion 202 is completely exposed to the water surface, the buoyancy of the cup portion disappears, and since the inside of the cup portion 202 is empty, the weight of the cup itself is used as the weight. Apply the float 1 2 2 through the hollow shaft 1 1 4. Then, the float 1 2 2 receives the above-mentioned weight against its own buoyancy. At this time, since the water level in the tank is higher than the sleeve 220 and the float 122 remains submerged as before, the valve body 112 is kept open by the float buoyancy. As a result, the water level in the tank will drop further.
- the water level drop inside the sleeve depends on the degree of washing water flow through the communication hole 226. If the degree of water flow is large, the water level in the sleeve falls quickly. If the water flow is small, the water level in the sleeve will drop slowly. By the way, since the float 122 is gradually exposed to the water surface as the water level inside the sleeve decreases, the float buoyancy decreases. During such a reduction in buoyancy, the weight of the cup portion 202 acts as a weight on the float 122, so that the flow of water through the communication hole 226 is accelerated by the weight (the weight of the cup portion). .
- the float 122 After the float 122 is exposed to the surface of the water, it decreases as the water level in the sleeve decreases, and the valve element 112 is moved away from the lower surface of the partition wall 222 by that much. The degree of the float drop is also determined by the water flow through the communication hole 226 described above.
- the hollow shaft 114 is lifted by a lift mechanism (not shown) while the cup valve 206 is kept closed, and the valve 112 is opened. I do. With this opening of the valve, the washing water in the tank is discharged from the valve seat 109, and the water level in the tank drops. Since the cup valve element 206 is in the closed state, the cup section 202 uses the hollow shaft 114 as the weight of the cup section itself and the internal washing water. Hang over the float 1 2 2 through. In other words, at the time of this small washing, the size is larger than that of the above-mentioned large washing.
- the drain valve device 200 of this embodiment can also drain the washing water in the tank with large and small washing having a difference in the total drainage amount. Even with this drain valve device 200, as long as the full level of the cleaning water in the tank is above the cup portion 202, it is possible to execute the cleaning water drainage having a different water amount between large and small cleaning. Therefore, it is not necessary to set the full water level inadvertently higher than the cup portion 202, and the water head pressure in the tank can be reduced accordingly, so that operability and drainage capacity can be maintained as described above. .
- the valve part 206 of the cup part 202 of the cup part 202 since the position is the tap part 202 near the water level, the head pressure applied to the valve body is small, and the valve is opened. Operation is easy.
- the present invention is not limited to the above-described examples and embodiments, and it is needless to say that the present invention can be carried out in various modes without departing from the gist of the present invention. It is.
- FIG. 50 is an explanatory view schematically showing a drain valve device 300 of another modified example.
- the drain valve device 300 of this modified example has a bottomed tubular body 302 held and fixed in a tank in an inverted state.
- through holes 303 are formed so as to be arranged at a constant pitch on the circumference.
- Float 304 is incorporated in this cylindrical body 302, and float buoyancy is applied to valve body 308 by using buoyancy transmitting member 306.
- the valve element 308 is rotatably supported by a shaft support member 312 so as to open and close the drain port 310.
- the drain port 3 10 opens to discharge the washing water in the tank.
- the float 304 floats in the tubular body 302 to reach the bottomed portion, and closes the through hole 303. This closed state is maintained by the float 304 that receives the float buoyancy. Further, since the float buoyancy acts on the valve-opening side of the valve element 308 with the buoyancy transmitting member 306, this valve-element opening is also maintained.
- the drain valve device is applied to the toilet and its modified example
- the application is not limited to the toilet and can be applied to a simple shower and various liquid supply / drain devices.
- toilets when applying to toilets, not only toilets that only need to store tank flush water at the low head pressure as described above, but also receive flush water with a large head pressure that can secure a sufficient tank height. It can also be applied to toilets.
- the upper water storage section 130 is provided above the lid body 126. Although it is provided, the upper reservoir 130 may not be provided, and the upper end of the sleeve may be closed by the lid 126.
Landscapes
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Sanitary Device For Flush Toilet (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2002/013326 WO2004057118A1 (ja) | 2002-12-19 | 2002-12-19 | 排水弁装置と排水装置並びに便器 |
AU2002357624A AU2002357624A1 (en) | 2002-12-19 | 2002-12-19 | Drain valve device, drain device, and toilet bowl |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2002/013326 WO2004057118A1 (ja) | 2002-12-19 | 2002-12-19 | 排水弁装置と排水装置並びに便器 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004057118A1 true WO2004057118A1 (ja) | 2004-07-08 |
Family
ID=32676920
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2002/013326 WO2004057118A1 (ja) | 2002-12-19 | 2002-12-19 | 排水弁装置と排水装置並びに便器 |
Country Status (2)
Country | Link |
---|---|
AU (1) | AU2002357624A1 (ja) |
WO (1) | WO2004057118A1 (ja) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS589211B2 (ja) * | 1979-04-24 | 1983-02-19 | 株式会社 喜多村合金製作所 | 洗浄水タンクに於ける二段放水式排水装置 |
JPH078468U (ja) * | 1993-06-30 | 1995-02-07 | 株式会社イナックス | フロート弁装置 |
-
2002
- 2002-12-19 AU AU2002357624A patent/AU2002357624A1/en not_active Abandoned
- 2002-12-19 WO PCT/JP2002/013326 patent/WO2004057118A1/ja active Application Filing
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS589211B2 (ja) * | 1979-04-24 | 1983-02-19 | 株式会社 喜多村合金製作所 | 洗浄水タンクに於ける二段放水式排水装置 |
JPH078468U (ja) * | 1993-06-30 | 1995-02-07 | 株式会社イナックス | フロート弁装置 |
Also Published As
Publication number | Publication date |
---|---|
AU2002357624A1 (en) | 2004-07-14 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5180295B2 (ja) | 溢れ防止補助水槽を有する洋風便器 | |
JP2009030405A (ja) | 水洗大便器 | |
JP2020524235A (ja) | 可変式節水型洋式便器の汚水排出装置 | |
JP2006500496A (ja) | 節水型洋風便器 | |
KR100901186B1 (ko) | 세척보울과 물탱크 사이에 역류방지 체크밸브를 갖는양변기 | |
US5301375A (en) | Primer tank-checkvalve syphon toilet flushing apparatus | |
JP4069704B2 (ja) | 洗浄水の排水弁装置 | |
JP2003239348A (ja) | 排水弁装置と排水装置並びに便器 | |
JP4968555B2 (ja) | 洗浄水タンク装置 | |
JP2001262657A (ja) | 洗浄水ガイドおよびそれを備えるタンク装置、便器、便器装置 | |
US5392470A (en) | Toilet flush control assembly and methods | |
WO2004057118A1 (ja) | 排水弁装置と排水装置並びに便器 | |
JP5094873B2 (ja) | 節水型洋式便器 | |
JP5412779B2 (ja) | 洋風大便器 | |
KR100648068B1 (ko) | 절수형 양변기 | |
KR100742589B1 (ko) | 양변기의 배수량 조절용 물덮개 | |
US5109552A (en) | Primer tank toilet flushing apparatus | |
JP4650777B2 (ja) | 水洗便器 | |
JP2003232066A (ja) | 便 器 | |
JP3166360B2 (ja) | 便器洗浄用給水装置 | |
US8360093B2 (en) | Pilot fill valve | |
JP4411737B2 (ja) | 水洗便器の洗浄水吐出方法 | |
JPH0860730A (ja) | 水洗便器 | |
JP3296449B2 (ja) | サイホン式水洗便器 | |
CN113529891B (zh) | 一种马桶排水装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ OM PH PL PT RO RU SC SD SE SG SK SL TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LU MC NL PT SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
NENP | Non-entry into the national phase |
Ref country code: JP |
|
WWW | Wipo information: withdrawn in national office |
Country of ref document: JP |
|
122 | Ep: pct application non-entry in european phase |