CN102918215A - Toilet cleaning apparatus - Google Patents

Abstract

Provided is a toilet cleaning apparatus which performs excellently in discharging waste material etc., and which can clean a toilet satisfactorily with a small amount of cleaning water. A toilet cleaning apparatus (10) supplies cleaning water to a toilet main body (1) comprising a rim water outlet (4A) and a jet water outlet (7A). The toilet cleaning apparatus (10) is provided with: a water supply passage for supplying the cleaning water to the rim water outlet (4A) and the jet water outlet (7A); a valve unit (20) for changing supply destinations in such a way that, when toilet cleaning is carried out by discharging the cleaning water from the rim water outlet (4A) and the jet water outlet (7A), the cleaning water is first discharged from the rim water outlet (4A) and, in succession, the cleaning water is then discharged from the jet water outlet (7A); and a pressure accumulator (30) for discharging some of the cleaning water stored in a tank (33) from the rim water outlet (4A) and the remainder of the cleaning water from the jet water outlet (7A) in such a way that the amount of the cleaning water discharged from the rim water outlet (4A) and the jet water outlet (7A) is equal to or greater than a set amount.

Description

toilet flushing device

technical field

The invention relates to a toilet flushing device.

Background technique

Patent Document 1 discloses a conventional toilet flushing device. The toilet flushing device supplies flush water to the toilet body. The toilet main body has: a toilet bowl, a lip water channel provided at the inner edge of the upper end of the toilet bowl, a lip water nozzle for spraying flushing water along the lip water channel, and a toilet bowl. A toilet drainage channel provided continuously on the downstream side of the pool portion, and a jet nozzle for jetting flush water toward the downstream side of the toilet drainage channel.

The toilet flushing device has a valve unit. This valve unit has an on-off valve for the lip and an on-off valve for the jet. The upstream sides of the on-off valve for the lip surface and the on-off valve for jet flow communicate with the water supply source through the water supply passage. The downstream side of the lip surface on-off valve communicates with the lip surface water spout port via the lip surface side water supply passage. The downstream side of the on-off valve for jet communicates with the jet water nozzle through the jet side water supply passage. The water supply passage communicates with an accumulator storing flushing water in a pressure-accumulated state. In the pressure accumulator, when the on-off valve for the lip surface and the on-off valve for the jet are closed, the flushing water flows into the tank, and the flushing water can be stored in a pressure-accumulated state by hydrostatic pressure. In addition, in the pressure accumulator, when the on-off valve for the lip surface or the on-off valve for the jet is opened, the flushing water stored in the water tank in the state of accumulating pressure will flow out and be added to the flushing water supplied from the water supply source, Accordingly, flushing water can be sprayed from the lip spray port or the jet spray port.

In this toilet flushing device, when the flushing water is sprayed from the lip spray port and the jet spray port to perform toilet flushing, the flushing is sprayed in the order of the lip spray port, the jet spray port, and the lip spray port. water. At this time, when performing the initial spraying of flushing water from the lip nozzle and the flushing water from the jet nozzle, the flushing water stored in the tank of the pressure accumulator in a pressure-accumulated state Added to the flushing water supplied from the water supply source. In addition, in this toilet flushing device, the entire amount of flush water stored in the tank of the pressure accumulator in a pressure-accumulated state flows out by the first spray of flush water from the lip nozzle. Therefore, the toilet flushing device closes the lip surface on-off valve and the jet on-off valve before starting to spray the flush water from the jet nozzle, and stores the flush water in the accumulator again in a pressure-accumulated state. in the water tank of the compressor. Thereafter, the toilet flushing device opens the on-off valve for the jet to spray flush water from the jet nozzle. In this way, the toilet flushing device is capable of powerfully jetting flush water from the lip nozzle to flush the toilet bowl without omission, and powerfully jetting flush water from the jet jet nozzle to discharge from the toilet drainage channel. dirt etc.

prior art literature

patent documents

Patent Document 1: Japanese Patent Laid-Open No. 2005-146602

Contents of the invention

The problem to be solved by the invention

However, in the toilet flushing device disclosed in Patent Document 1, between the end of the initial spray of flush water from the lip spray port and the start of the spray of flush water from the jet spray port, a time interval. In toilet flushing, it is preferable to start flushing from the jet nozzle in a state where the water level of the flush water in the toilet bowl is raised to the highest level by the first flush water spray from the lip nozzle. Spray of rinse water. That is, by the synergistic effect of the potential energy of the flush water in the toilet bowl, which becomes the largest because the water level of the flush water in the toilet bowl reaches the highest level, and the water potential of the flush water sprayed from the jet nozzle, it is possible to optimize the flushing effect. Discharge dirt, etc. from the toilet drainage channel. In this toilet flushing device, since there will be a time interval between the end of the initial spraying of flushing water from the lip spray port and the start of the spraying of flushing water from the jet spray port, at the beginning When the flush water is sprayed from the jet spout, the flush water level in the toilet bowl is lower than the maximum level. Therefore, in this toilet flushing device, the potential energy of the flush water in the toilet bowl cannot be utilized to the maximum extent, and the discharge performance of waste and the like may deteriorate. In particular, when the amount of flushing water is reduced for water saving, deterioration in discharge performance of dirt and the like may be significantly caused.

The present invention was made in view of the above-mentioned existing actual situation, and the problem to be solved is to provide a toilet flushing toilet that is excellent in the discharge performance of dirt and the like and can perform good flushing even with a small amount of flushing water. toilet flushing device.

method used to solve the problem

The toilet flushing device of the present invention supplies cleaning water to the toilet main body, and the toilet main body has: a urinal part; a water channel on the lip surface, which is arranged at the inner edge of the upper opening of the urinal part; a water spray port on the lip surface, It sprays flushing water along the lip water passage; a toilet drainage passage is provided in a continuous manner with the downstream side of the toilet bowl; a jet nozzle is provided toward the downstream side of the toilet drainage passage. The toilet flushing device is characterized in that it includes: a water supply passage for supplying flushing water to the lip water nozzle and the jet water nozzle; and a water supply switching mechanism provided in the water supply passage , and when flushing water is sprayed from the lip water spray port and the jet water spray port to implement toilet flushing, the flush water is first sprayed from the lip water spray port, and then sprayed from the jet stream The water outlet sprays flushing water to switch the water supply object; the flow increasing mechanism has a water tank that communicates with the water supply channel and stores flushing water, and makes a part of the flushing water stored in the water tank flow from the The lip water spray port is sprayed, and the remaining part is sprayed from the jet water spray port, so that the flow rate of the flushing water sprayed from the lip water spray port and the jet water spray port reaches a set value above.

In this toilet flushing device, the flushing water stored in the water tank is distributed to the lip nozzle and the jet nozzle and sprayed so that the flow rate becomes more than a set value. Therefore, when the toilet flushing device implements toilet flushing, it is possible to set the flow rate of flushing water sprayed from the water nozzles such as the lip surface and the jet water nozzle above the set value, and continuously implement the flushing water from the lip surface water nozzles. A spray of flushing water and a spray of flushing water from a jet nozzle. Therefore, it is possible to start spraying of flush water from the jet spout with the water level of the flush water in the toilet bowl at the highest level due to the spray of flush water from the lip spout. That is, since the flush water can be sprayed from the jet nozzle when the potential energy of the flush water in the toilet bowl has reached the maximum, the maximum potential energy of the flush water in the toilet bowl and the amount of water sprayed from the jet nozzle can be reduced. The synergistic effect of the water force of the flush water enables good discharge of waste and the like from the toilet drain even with a small amount of flush water. In addition, the flow rate refers to the amount of water passing per unit time.

Therefore, the toilet flushing device of the present invention is excellent in the discharge performance of dirt and the like, and can perform good toilet flushing even with a small amount of flushing water.

Description of drawings

FIG. 1 is a plan view showing a toilet body to which a toilet flushing device according to an embodiment is mounted.

Fig. 2 is a sectional view showing a toilet body to which the toilet flushing device of the embodiment is mounted.

Fig. 3 is a cross-sectional view showing the valve unit of the embodiment.

Fig. 4 is a block diagram showing the toilet flushing device of the embodiment.

Fig. 5 is a schematic view showing a step of storing water in an accumulator of the toilet flushing device according to the embodiment.

Fig. 6 is a schematic diagram showing a toilet flushing standby state of the toilet flushing device according to the embodiment.

Fig. 7 is a schematic view showing a toilet flushing process of the toilet flushing device of the embodiment.

Fig. 8 is a schematic view showing a jet flushing process of the toilet flushing device of the embodiment.

Fig. 9 is a schematic view showing a water filling process of the toilet flushing device of the embodiment.

Fig. 10 is a graph showing changes in flow rate during toilet flushing of the toilet flushing device according to the embodiment.

11(A), (B), and (C) are block diagrams showing toilet flushing devices of other embodiments.

12(A) and (B) are block diagrams showing toilet flushing devices of other embodiments.

Detailed ways

Preferred embodiments of the present invention will be described.

The flow increasing mechanism of the present invention may be a pressure accumulator. The pressure accumulator has a water tank whose volume is expanded by flush water flowing in from the water supply channel, and an elastic body that applies elastic force in a direction to decrease the volume of the water tank. When the water supply channel on the downstream side is closed, the pressure accumulator can expand the volume of the water tank against the elastic force of the elastic body by the hydrostatic pressure of the flushing water, and store the flushing water in a pressure-accumulated state. When the water supply channel on the downstream side is opened, the pressure accumulator can add the flush water stored in the tank in a pressure-accumulated state to the flush water flowing through the water supply channel. In this way, the pressure accumulator can increase the flow rate of the flushing water sprayed from the lip spray port and the jet spray port to a value greater than or equal to a set value without power supply.

In addition, the flow increasing mechanism of the present invention can also be constituted by a water tank and a pump. In this case, it is possible to drive the pump so that the flow rate exceeds the set value, so that the flushing water stored in the tank flows out, and the flushing water sprayed from the lip spray port and the jet spray port The flow rate of flushing water increases above the set value.

In the present invention, the initial flow rate of the flushing water jetted from the jet jet nozzle may be larger than the flow rate of the flushing water jetted from the lip jet nozzle. In this case, the flushing water stored in the water tank can be appropriately distributed to the lip water nozzle and the jet nozzle and sprayed. That is, the flushing water sprayed from the jet nozzle is used to cause a siphon effect in the toilet drain due to its water potential, thereby discharging waste and the like from the toilet drain. Therefore, it is preferable that the flushing water sprayed from the jet nozzle is sprayed as strongly as possible at the beginning of the start of spraying. On the other hand, the purpose of the flushing water sprayed from the lip surface spray port is to flush the surface of the toilet bowl without omission, even if the initial water potential of the flush water sprayed from the jet stream spray port is weak, It is also possible to flush the surface of the urinal portion without omission.

In addition, it is possible to adopt a method in which the amount of flushing water sprayed from the jet spray port is increased compared to the amount of flush water sprayed from the lip surface spray port and stored in the water tank. , the amount of flushing water stored in the remaining part of the water tank, so that the amount of flushing water sprayed from the jet water spout is larger than the flushing water sprayed from the lip water spout. In this case, the flushing water stored in the water tank can be appropriately distributed to the lip surface water jet port and the jet water jet port and can be sprayed. That is, the flush water sprayed from the jet nozzle is used to generate and continue a siphon action in the toilet drain, thereby discharging waste and the like from the toilet drain. Therefore, it is preferable that the amount of flushing water sprayed from the jet nozzle is as large as possible. On the other hand, the purpose of the flushing water sprayed from the lip surface spray port is to flush the surface of the toilet bowl without omission, even if the amount of flush water sprayed from the jet stream spray port is small, The surface of the toilet bowl can be flushed without omission.

In addition, the water supply channel may be formed by an upstream water supply channel communicating with a water supply source, and a jet side water supply channel and a lip side water supply channel formed by branching the downstream end of the upstream water supply channel. In this configuration, the flow increasing mechanism communicates with the water supply channel on the jet side.

In this case, since the flow path from the flow increasing mechanism to the jet nozzle is short, the pressure loss of the flushing water flowing therethrough can be reduced. Therefore, in this toilet flushing device, the flush water flowing out from the flow rate increasing mechanism can be strongly ejected from the jet nozzle. Therefore, it is possible to favorably discharge waste and the like from the toilet drain.

In addition, the water supply switching mechanism may include: a jet on-off valve that opens and closes the jet-side water supply passage; a lip on-off valve that opens and closes the lip-side water supply passage. open and close; the control device controls the opening and closing of the on-off valve for the jet and the on-off valve for the lip surface, and the toilet flushing device is equipped with a flow regulating valve, and the flow regulating valve is used in conjunction with the The jet flow opening and closing valve is connected to the flow increasing mechanism in the jet flow side water supply passage on the upstream side, and is provided on the jet flow increasing side upstream from the communicating portion communicating with the flow increasing mechanism. In the side water supply passage, the flow regulating valve allows a large flow to the downstream side of the jet side water supply passage, and allows a small flow to the upstream side.

In this case, the flow rate of the flushing water flowing out from the flow rate increasing mechanism can be set to be lower than that when flushing water is sprayed from the jet spray port by the flow rate regulating valve. Less when flushing water comes out. Therefore, the following situation can be easily realized by a simple structure, that is, the initial flow rate of the flushing water ejected from the jet nozzle is larger than the flow rate of the flushing water ejected from the lip surface nozzle, or the initial flow rate of the flushing water ejected from the lip surface nozzle is increased. The water volume of the flushing water sprayed from the jet water spray port is greater than the water volume of the flush water sprayed from the lip surface spray port.

Next, an embodiment of a toilet flushing device according to the present invention will be described with reference to the drawings.

Example

As shown in FIGS. 1 and 2 , the toilet flushing device 10 of the embodiment supplies flush water to the toilet body 1 . The toilet main body 1 has a toilet bowl 2 , a lip surface water passage 3 , a lip surface spout 4A, a toilet drainage path 6 , and a jet spout 7A.

In the toilet body 1 , a lip surface water passage 3 is provided in the shape of a partition at the inner edge of the upper opening of the toilet bowl 2 . The lip spray port 4A opens at the tip surface of the lip nozzle 4 . The lip nozzle 4 is arranged at a left rear corner of the toilet bowl 2 as viewed from the front end F side of the toilet bowl 2 . The lip nozzle 4 is connected to a downstream end portion of a lip side water supply pipe 5A forming a part of the lip side water supply passage. The flush water sprayed from the lip spray port 4A flows down into the toilet bowl 2 while rotating in one direction at the upper end edge of the toilet bowl 2 along the lip water passage 3 . Therefore, when the flush water is sprayed from the lip spray port 4A, a swirl flow is formed toward the center of the toilet bowl 2, and the level of the flush water in the toilet bowl 2 rises.

The toilet main body 1 is provided with a toilet drain 6 so as to be continuous with the downstream side of the toilet bowl 2 . The toilet drainage passage 6 is constituted by an ascending passage extending from the lower portion of the toilet bowl 2 toward the rear and obliquely upward, and a descending passage bent from the upper end of the ascending passage. and extend vertically downward.

The jet nozzle 7A opens at the tip surface of the jet nozzle 7 . The jet nozzle 7 is installed at the upstream lower end of the ascending flow path of the toilet drain passage 6 . The jet nozzle 7 is connected to the downstream end of the jet-side water supply pipe 8A forming a part of the jet-side water supply passage. The flush water sprayed from the jet nozzle 7A flows downstream of the toilet drain 6 while filling the ascending channel of the toilet drain 6 .

As shown in FIGS. 1 , 3 , and 4 , the toilet flushing device 10 includes a valve unit 20 as a water supply switching mechanism, and an accumulator 30 as a flow rate increasing mechanism. The valve unit 20 and the pressure accumulator 30 constituting the toilet flushing device 10 are attached to the rear of the toilet body 1 , and the upper side and the side are covered by an upper cover 11C and a lower cover (not shown). The upper cover 11C is attached to the rear upper part of the toilet body 1, and rotatably supports the toilet seat 11A and the toilet lid 11B pivotally. The lower cover is attached to the rear side of the toilet body 1 .

As shown in FIGS. 3 and 4 , the valve unit 20 has an upstream side flow path 9B, and a jet side flow path 8B and a lip side flow path 5B formed by branching the downstream end of the upstream side flow path 9B. The upstream flow path 9B extends in the vertical direction. The jet-side flow path 8B extends horizontally from the upper end of the upstream-side flow path 9B as the downstream end, then bends upward, and extends vertically via the jet on-off valve 21 . The lip-side flow path 5B extends from the upper end portion of the upstream-side flow path 9B as the downstream end to the direction opposite to the portion extending in the horizontal direction of the jet-side flow path 8B, then bends upward, and passes through the lip surface. The opening and closing valve 22 extends in the vertical direction.

The upstream flow path 9B has an upstream connection portion 9C at a lower portion as an upstream end. 9 C of upstream connection parts are connected to 9 A of water supply pipes which communicate with a water supply source. In this manner, the upstream water supply passage is constituted by the upstream flow passage 9B, the upstream connecting portion 9C, and the water supply pipe 9A. A filter 25 is housed in the upstream flow path 9B. The filter 25 is detachable from the lower end portion of the upstream flow path 9B. The upstream flow path 9B is provided with a check valve 26 at an upper end portion which is a downstream end. The check valve 26 allows flush water to flow from the upstream side to the downstream side, and can prevent the flush water from flowing backward.

The jet-side flow path 8B has a jet-side coupling portion 8C at an upper portion as a downstream end. The jet side connection part 8C is connected to the jet side water supply pipe 8A. In this manner, the jet-side water supply path is constituted by the jet-side flow path 8B, the jet-side connecting portion 8C, and the jet-side water supply pipe 8A. In addition, a water supply passage for supplying flush water to the jet water spout 7A is formed by the upstream water supply passage and the jet flow side water supply passage.

The jet-side flow path 8B accommodates a flow control valve 23 in a portion extending in the horizontal direction from the upper end of the upstream flow path 9B and at a position on the upstream side of the curved portion C that curves upward. The flow regulating valve 23 has: a regulating valve main body 23A abutting against a valve seat portion 8D provided by enlarging the diameter of the jet-side flow path 8B from the downstream side; The elastic force is applied in the direction in which the portion 8D abuts. A small hole 23B is formed through the regulating valve main body 23A. In the flow regulating valve 23 configured in this manner, the regulating valve main body 23A is separated from the valve seat portion 8D when flush water flows from the upstream side to the downstream side. Therefore, the flow rate regulating valve 23 allows a large flow rate to the downstream side of the jet side water supply passage. On the other hand, in this flow regulating valve 23 , when flush water flows from the downstream side to the upstream side, the regulating valve main body 23A contacts the valve seat portion 8D, and flush water flows only through the small hole 23B. Therefore, the flow rate regulating valve 23 allows the flow of a small flow rate to the upstream side of the jet side water supply passage.

The jet side flow path 8B is formed at the lower end portion of the curved portion C with a communicating portion 27 that communicates with the accumulator 3O through the water supply and drain pipe 31 . In addition, in the jet-side flow path 8B, a local flushing water supply channel S for supplying flushing water to a not-shown local flushing device is formed on the side surface of the curved portion C.

In the jet side flow channel 8B, a jet on-off valve 21 for opening and closing the jet side water supply channel is provided at the lower part of the portion extending in the vertical direction on the downstream side of the curved portion C. . The on-off valve 21 for jet fluid has: a diaphragm-type first main valve 21A; a first valve seat 21B on which the first main valve 21A is separated or seated; a first back pressure chamber 21C whose Formed behind the first main valve 21A; the first drain passage 21D, which communicates the first back pressure chamber 21C with the secondary side of the first main valve 21A; the first pilot valve 21E, which conducts the first drain passage 21D Opening and closing: the first solenoid valve 21F drives the opening and closing of the first pilot valve 21E. A first small hole 21G is formed through the first main valve 21A, and the first small hole 21G communicates with the first back pressure chamber 21C and the primary side of the first main valve 21A. The first solenoid valve 21F is driven based on an opening and closing signal sent from the control device 24 .

The jet on-off valve 21 configured in this way opens and closes the jet-side water supply passage as described below. When the first solenoid valve 21F receives a valve opening signal from the control device 24 , the first solenoid valve 21F will be driven, so that the first pilot valve 21E will open the first drain passage 21D. Then, the flush water in the first back pressure chamber 21C is discharged from the first drain passage 21D to the secondary side of the first main valve 21A. As a result, the pressure of the flushing water applied to the surface on the opposite side of the first main valve 21A is higher than that of the surface on the side of the first back pressure chamber 21C, so that the first main valve 21A is lifted from the first valve seat 21B. Then, the on-off valve 21 for jet flow is opened. On the other hand, when the first solenoid valve 21F receives a valve closing signal from the control device 24 , the first solenoid valve 21F will be driven, so that the first pilot valve 21E closes the first drainage channel 21D. Then, flush water flows into the first back pressure chamber 21C from the primary side of the first main valve 21A through the first small hole 21G. Accordingly, the pressure of flushing water applied to the surface of the first main valve 21A on the side of the first back pressure chamber 21C is higher than that of the surface on the opposite side, so that the first main valve 21A is seated on the first valve seat 21B, Furthermore, the jet on-off valve 21 is closed.

A jet side atmosphere release valve 28A is provided at the upper end portion of the jet side flow path 8B. When flush water is sprayed from the jet nozzle 7A without passing through the jet-side water supply passage, the jet-side atmosphere opening valve 28A is in the atmosphere-opening state, and the downstream side of the jet-side atmosphere opening valve 28A is opened to the atmosphere. This prevents the sewage on the secondary side of the atmospheric release valve 28A for jet flow from flowing backward to the primary side of the on-off valve 21 for jet flow.

The lip-side flow path 5B has a lip-side coupling portion 5C formed at an upper portion thereof as a downstream end of the lip-side flow path 5B. The lip surface side connection part 5C is connected to the lip surface side water supply pipe 5A. In this manner, the labial side water supply channel is constituted by the labial side flow channel 5B, the labial side connecting portion 5C, and the labial side water supply pipe 5A. In addition, a water supply passage for supplying flushing water to the lip surface spray port 4A is formed by the upstream side water supply passage and the lip surface side water supply passage.

The lip surface side flow path 5B accommodates a cover member 29 at a portion extending in the horizontal direction from the upper end portion of the upstream side flow path 9B. The cover member 29 has a cylindrical shape with one end (the right side in FIG. 3 ) closed, and has a plurality of openings 5D on the side to allow flushing water to flow from the inside to the outside. The flush water flowing out from the opening 5D flows into the lip side flow path 5B extending in the vertical direction. The cover member 29 is detachably attached to the lip side flow path 5B. Therefore, by removing the cover member 29 from the lip side flow path 5B, the flow rate regulating valve 23 can be accommodated in the jet flow side flow path 8B or removed for maintenance.

The lip side flow path 5B is provided with a lip on-off valve 22 that opens and closes the lip side water supply path at the lower portion of the portion extending in the vertical direction. The on-off valve 22 for the lip surface has: a diaphragm-type second main valve 22A; a second valve seat 22B on which the second main valve 22A is separated or seated; a second back pressure chamber 22C, It is formed behind the second main valve 22A; the second drain passage 22D, which communicates the second back pressure chamber 22C with the secondary side of the second main valve 22A; the second pilot valve 22E, which communicates with the second drain passage 22D. open and close; the second solenoid valve 22F drives the open and close of the second pilot valve 22E. A second small hole 22G is formed through the second main valve 22A, and the second small hole 22G communicates with the second back pressure chamber 22C and the primary side of the second main valve 22A. The second electromagnetic valve 22F is driven according to an opening and closing signal sent from the control device 24 .

The labial surface on-off valve 22 configured in this way opens and closes the labial surface side water supply passage as described below. When the second solenoid valve 22F receives a valve opening signal from the control device 24 , the second solenoid valve 22F will be driven, so that the second pilot valve 22E will open the second drainage channel 22D. Then, the flush water in the second back pressure chamber 22C is discharged from the second drain passage 22D to the secondary side of the second main valve 22A. As a result, the pressure of flushing water applied to the surface opposite to the second back pressure chamber 22C side of the second main valve 22A is higher, so that the second main valve 22A is separated from the second valve seat 22B, Furthermore, the opening and closing valve 22 for the lip surface is opened. On the other hand, when the second solenoid valve 22F receives a valve closing signal from the control device 24 , the second solenoid valve 22F will be driven, so that the second pilot valve 22E closes the second drainage channel 22D. Then, flush water flows into the second back pressure chamber 22C from the primary side of the second main valve 22A through the second small hole 22G. As a result, the pressure of the flushing water applied to the surface of the second main valve 22A on the second back pressure chamber 22C side is higher than that of the surface on the opposite side, so that the second main valve 22A is seated on the second valve seat 22B. Furthermore, the opening and closing valve 22 closes the lip surface.

A lip-side atmospheric release valve 28B is provided at an upper end portion of the lip-side flow path 5B. When flush water is sprayed from the lip water spout 4A without passing through the lip side water supply channel, the lip side atmosphere opening valve 28B is in the atmosphere opening state, and the downstream side of the lip side atmosphere opening valve 28B is opened to the atmosphere. This prevents the sewage on the secondary side of the atmospheric opening valve 28B for the lip surface from flowing back to the primary side of the on-off valve 22 for the lip surface.

As shown in FIGS. 5 to 9 , the accumulator 30 has a water tank 33 that accommodates a partition plate 32 that reciprocates, and whose volume is increased or decreased by the reciprocation of the partition plate 32 . The accumulator 30 has a coil spring 34 that applies elastic force to the partition plate 32 in a direction to decrease the volume of the water tank 33 . Therefore, the water tank 33 of the accumulator 30 can expand its volume when flush water flows in through the water supply/drain pipe 31 , and can store flush water in a pressure-accumulated state.

Next, toilet flushing performed by the toilet flushing device 10 by supplying flush water to the toilet body 1 will be described.

Water storage process to accumulator

As shown in FIG. 5 , the toilet flushing device 10 closes the jet on-off valve 21 and the lip on-off valve 22 . In this state, the flush water flowing into the valve unit 20 from the water supply pipe 9A communicating with the water supply source passes through the upstream connecting portion 9C, the upstream side channel 9B, the horizontally extending portion of the jet side channel 8B, The flow regulating valve 23 , the communication portion 27 formed at the bent portion C, and the water supply and drainage pipe 31 flow into the water tank 33 of the accumulator 30 . The partition plate 32 moves in the direction in which the volume of the water tank 33 increases against the elastic force of the coil spring 34 by the flush water flowing into the water tank 33 .

Toilet flushing standby

When flush water starts to flow into tank 33 and a predetermined time elapses, as shown in FIG. This state becomes a standby state for toilet flushing.

Urinal flushing process

When the toilet flush switch not shown in the figure is operated, the control device 24 will send a valve opening signal to the second electromagnetic valve 22F of the on-off valve 22 for the lip surface, so that as shown in FIG. 7 , the on-off valve 22 for the lip surface will Open the valve. At this time, the jet on-off valve 21 is still in the closed state.

When the on-off valve 22 for the lip surface is opened, the flushing water flowing into the valve unit 20 from the water supply pipe 9A communicated with the water supply source will flow toward the lip surface side flow path 5B through the upstream side connecting portion 9C and the upstream side flow path 9B. inflow. In addition, since the flush water stored in the tank 33 of the accumulator 30 is pressurized by hydrostatic pressure, it is higher than the flow pressure of the flush water flowing from the water supply source to the valve unit 20 . Therefore, the flushing water stored in the tank 33 of the pressure accumulator 30 in a pressure-accumulated state also passes through the water supply and discharge pipe 31, the small hole 23B of the flow control valve 23, and the portion extending in the horizontal direction of the jet side flow path 8B. , and flow into the lip side channel 5B. That is, in the upstream portion of the lip side flow path 5B, the flush water supplied from the water supply source is added with the flush water stored in the water tank 33 of the pressure accumulator 30 in a pressure-accumulated state. In this way, the rinse water with increased flow rate is sprayed from the lip surface provided on the lip surface nozzle 4 via the lip surface side flow channel 5B, the lip surface side connecting portion 5C, and the lip surface side water supply pipe 5A. Port 4A is sprayed out along the lip water channel 3 .

As shown in FIG. 10 , the water tank stored in the pressure accumulator 30 in a pressure-accumulated state is added to the flush water R1 supplied from the water supply source for the flush water sprayed from the lip spray port 4A. Rinse water P1 in 33. Therefore, even if the flow rate of the rinse water R1 supplied from the water supply source is small, the flow rate of the rinse water sprayed from the lip spray port 4A can be set to be equal to or greater than the set value. As a result, the flush water can be sprayed from the lip surface spray port 4A more forcefully, and the flush water can flow to the end of the lip surface water passage 3 . Therefore, the entire toilet bowl 2 can be flushed without omission. In addition, the water level of the flush water in the toilet bowl 2 can be raised.

In addition, since the flush water stored in the tank 33 of the accumulator 30 in a pressure-accumulated state flows into the lip side flow path 5B through the small hole 23B of the flow rate regulating valve 23, the flushing water flowing out from the tank 33 is suppressed. The flow rate of water, thereby has prevented the situation that flushing water flows out from water tank 33 at once. Therefore, only a part of the flush water stored in the tank 33 of the accumulator 30 in a pressure-accumulated state can be sprayed from the lip spray port 4A. In this way, the flow rate or the amount of flushing water sprayed from the lip spray port 4A can be easily adjusted with a simple structure by the flow rate adjustment valve 23 .

After the set time (T1) has elapsed since the toilet flush switch was operated, the control device 24 sends a valve closing signal to the second solenoid valve 22F of the lip surface on-off valve 22 to close the lip surface on-off valve 22. . In this way, the lip surface on-off valve 22 is closed, and the toilet bowl flushing process is completed.

Jet flushing (discharge of dirt, etc.) process

Just before the set time (T1) has elapsed since the toilet flushing switch is operated, the control device 24 sends a valve opening signal to the first electromagnetic valve 21F of the jet on-off valve 21, so that as shown in FIG. 8, the jet is opened and closed. Valve 21 is opened.

When the jet on-off valve 21 is opened, the flushing water flowing into the valve unit 20 from the water supply pipe 9A communicating with the water supply source flows into the jet side flow path 8B via the upstream connecting portion 9C and the upstream flow path 9B. The regulating valve main body 23A of the flow rate regulating valve 23 is separated from the valve seat portion 8D by the flushing water flowing into the jet-side flow path 8B. In this way, since the flow regulating valve 23 allows the flow of a large flow to the downstream side, the flushing water flowing into the jet side channel 8B from the water supply pipe 9A communicated with the water supply source can flow to the jet flow channel 8B without reducing the flow rate. The downstream side of the jet side flow path 8B flows in.

In addition, since the flush water stored in the tank 33 of the accumulator 30 is pressurized by hydrostatic pressure, it is higher than the flow pressure of the flush water flowing from the water supply source to the valve unit 20 . Therefore, the flush water stored in the tank 33 of the accumulator 30 in a pressure-accumulated state also flows into the jet-side flow path 8B from the connection portion 27 via the water supply/drain pipe 31 . That is, flush water stored in tank 33 of accumulator 30 in a pressure-accumulated state is added to the flush water supplied from the water supply source in jet-side flow path 8B downstream of flow rate regulating valve 23 . In this way, the flushing water with an increased flow rate passes through the jet-side flow channel 8B, the jet-side connecting portion 8C, and the jet-side water supply pipe 8A, and flows from the jet nozzle 7A provided on the jet nozzle 7 along the toilet drainage channel. 6 is ejected from the ascending runner.

Since the water tank 33 of the pressure accumulator 30 communicates with the jet flow channel 8B on the downstream side of the flow regulating valve 23 through the water supply and drainage pipe 31, there are few factors hindering the flow of flushing water, and the flow of flushing water to the jet water nozzle 7A is communicated. The flow path so far is short. Therefore, it is possible to reduce the pressure loss of the flush water while flowing to the jet water nozzle 7A. Therefore, the flush water added with the flush water stored in the water tank 33 in a pressure-accumulated state can be strongly spouted from the jet nozzle 7A.

As shown in FIG. 10 , as for the flush water sprayed from the jet nozzle 7A, the water tank 33 stored in the accumulator 30 in a pressure-accumulated state is added to the flush water J supplied from the water supply source. Rinse water P2 inside. Therefore, even if the flow rate of the flush water J supplied from the water supply source is small, the flow rate of the flush water jetted from the jet nozzle 7A can be set to be equal to or greater than the set value. Thereby, flush water can be jetted powerfully from the jet nozzle 7A.

In addition, since the on-off valve 21 for the jet is opened just before the on-off valve 22 for the lip is closed (the urinal flushing process ends), the spray of flushing water from the lip spray port 4A and the spray from the jet The spray of flushing water from the water port 7A will be continuous. Therefore, it is possible to start spraying flush water from jet spray port 7A with the water level of flush water in toilet bowl 2 at the highest level by spraying flush water from lip spray port 4A. That is, since the flushing water can be sprayed from the jet nozzle 7A in the state where the potential energy of the flushing water in the toilet bowl 2 has reached the maximum, the maximum energy of the flushing water in the toilet bowl 2 and the jet nozzle can be discharged from the jet nozzle 7A. 7A is multiplied by the water potential of the sprayed flush water to generate a siphon effect in the toilet drain 6 , so that the waste and the like can be well discharged from the toilet drain 6 even with a small amount of flush water.

Therefore, the toilet flushing device 10 of the embodiment is excellent in the discharge performance of dirt and the like, and can perform good toilet flushing even with a small amount of flushing water.

In addition, the flush water P2 stored in the water tank 33 in a pressure-accumulated state is ejected from the jet nozzle 7A more than when it is ejected from the lip nozzle 4A during the toilet flushing process. , the pressure loss is less and thus the flow rate is more. Therefore, at the beginning after the opening and closing valve 21 of the jet is opened, that is, the initial flow rate of the flushing water being sprayed from the jet water nozzle 7A is more than that of being sprayed from the lip surface water nozzle 4A during the urinal flushing process. Outflow of rinse water. Thereafter, since the flush water stored in the tank 33 in a pressure-accumulated state decreases with time, the flow rate of the flush water sprayed from the jet nozzle 7A decreases.

In this way, the toilet flushing device 10 can appropriately distribute and discharge the flush water stored in the tank 33 in a pressure-accumulated state to the lip spray port 4A and the jet spray port 7A. That is, the flush water sprayed from the jet nozzle 7A is used to cause a siphon effect in the toilet drain 6 by its water potential, thereby discharging waste and the like from the toilet drain 6 . Therefore, it is preferable that the flush water sprayed from the jet water spray port 7A be sprayed as strongly as possible at the beginning of the water spray start. On the other hand, the purpose of the flushing water sprayed from the lip spray port 4A during the toilet flushing process is to flush the surface of the toilet bowl 2 without omission, even if it is different from the flushing water sprayed from the jet spray port 7A. The initial force of the water is relatively weak, and the surface of the toilet bowl 2 can be flushed without fail.

After a set time (T2) has elapsed since the toilet flush switch was operated, the control device 24 sends a valve closing signal to the first solenoid valve 21F of the jet on-off valve 21 to close the jet on-off valve 21 . In this way, the jet on-off valve 21 is closed, and the jet flushing process ends. In the jet flushing process, all the flush water stored in the tank 33 in a pressure-accumulated state is sprayed from the jet nozzle 7A.

The amount of flushing water sprayed from the jet nozzle 7A in the jet flushing step is larger than the flushing water jetted from the lip nozzle 4A in the toilet bowl flushing step. In this way, the toilet flushing device 10 can properly distribute and discharge the flush water stored in the tank 33 in a pressure-accumulated state to the lip spray port 4A and the jet spray port 7A. That is, the flush water sprayed from the jet nozzle 7A is used to generate and continue a siphon action in the toilet drain 6 , thereby discharging waste and the like from the toilet drain 6 . Therefore, it is preferable that the amount of flushing water sprayed from the jet nozzle 7A is as large as possible. On the other hand, during the urinal flushing process, the purpose of the flushing water sprayed from the lip surface spray port 4A is to flush the surface of the toilet bowl 2 without omission, even if it is different from the water sprayed from the jet spray port 7A. The amount of flush water is relatively small, and the surface of the toilet bowl 2 can be flushed without omission.

Water covering process

Just before the set time (T2) has elapsed since the toilet flushing switch was operated, the control device 24 sends a valve opening signal to the second electromagnetic valve 22F of the on-off valve 22 for the lip surface, thereby as shown in FIG. The on-off valve 22 is opened.

No flushing water is stored in the water tank 33 of the pressure accumulator 30 when the lip surface on-off valve 22 is opened. Therefore, when the opening and closing valve 22 for the lip surface is opened, only the flushing water flowing into the valve unit 20 from the water supply pipe 9A communicated with the water supply source flows into the valve unit 20 through the upstream connecting portion 9C, the upstream flow path 9B, and the lip surface side. Channel 5B, lip side connecting portion 5C, and lip side water supply pipe 5A are sprayed from lip water nozzle 4A provided on lip nozzle 4 along lip water passage 3 .

As shown in FIG. 10 , the flush water sprayed from the lip spout 4A is only the flush water R2 supplied from the water supply source, and is stored in the toilet bowl 2 to form a water seal. After the set time (T3) has elapsed since the toilet flushing switch was operated, the control device 24 sends a valve closing signal to the second electromagnetic valve 22F of the on-off valve 22 for the lip, so that the on-off valve 22 for the lip is opened. valve. In this way, the on-off valve 22 for the lip surface is closed, and the water covering process is completed.

When the water covering process is finished, as shown in FIG. 5 , in the toilet flushing device 10 , the on-off valve 21 for the jet fluid and the on-off valve 22 for the lip surface will be in the closed state. Therefore, the toilet flushing device 10 returns to the toilet flushing standby state through the process of storing water in the accumulator 30 .

The present invention is not limited to the embodiments illustrated by the above description and drawings, for example, the following embodiments are also included in the technical scope of the present invention.

(1) Although in the embodiment, the flow regulating valve 23 is provided in the jet side water supply passage, the flow regulating valve 23 may not be provided.

In this case, as shown in FIG. 11(A) , it is only necessary to communicate the accumulator 30 with the upstream water supply passages 9A, 9B, and 9C via the on-off valve 40 . In this toilet flushing device 100, the opening and closing timing of the lip surface on-off valve 22 during the toilet flushing process and the timing of opening and closing the jet fluid on-off valve 21 during the jet fluid flushing process are matched. The closing valve 40 is opened and closed. Thereby, while setting the flow rate of the flushing water ejected from the lip surface nozzle 4A and the jet nozzle 7A to be more than a set value, the flow of flushing water from the lip surface nozzle 4A can be continuously implemented. The water spray and the water spray of the flushing water from the jet water nozzle 7A.

In addition, as shown in FIG. 11(B), the pressure accumulator 30 may communicate with the upstream water supply channels 9A, 9B, and 9C via the channel switching valve 50 and the water supply and drain pipes 50A, 50B having different pipe diameters. In this toilet flushing device 110, by switching the flow channel switching valve 50, the flush water stored in the pressure accumulator 30 in a pressure-accumulated state is transferred from the supply and discharge pipe 50A having a small diameter during the toilet flushing process. flow out. On the other hand, in the jet flushing process, the flushing water stored in the accumulator 30 in a pressure-accumulated state flows out from the water supply and drainage pipe 50B having a large pipe diameter. Thereby, the initial flow rate of the flush water sprayed from the jet nozzle 7A during the jet flushing process can be made larger than the flow rate of the flush water sprayed from the lip spray port 4A during the toilet bowl flushing process.

In addition, as shown in FIG. 11(C) , it is only necessary to communicate the accumulator 30 and the jet side flow path 8B via the flow path switching valve 51 . In this toilet flushing device 120, the timing of opening and closing the lip surface on-off valve 22 during the toilet flushing process and the timing of opening and closing the jet fluid on-off valve 21 during the jet flushing process are matched to the flow channel. The switching valve 51 is switched so that the flush water stored in the accumulator 30 in a pressure-accumulated state is added to the flush water sprayed from the lip spray port 4A or the jet spray port 7A. Thereby, while setting the flow rate of the flushing water ejected from the lip surface nozzle 4A and the jet nozzle 7A to be more than a set value, the flow of flushing water from the lip surface nozzle 4A can be continuously implemented. Spray water and spray water of flushing water from the jet water nozzle 7A.

(2) In the embodiment, the pressure accumulator 30 is used as the flow increasing means, but the flow increasing means may be constituted by a water tank and a pump.

In this case, as shown in FIG. 12(A) , the water tank 35 and the pump 36 may be arranged sequentially in series from the upstream side of the jet side water supply passages 8A, 8B, and 8C. In this toilet flushing device 200, on-off valves 41 are provided in the upstream water supply passages 9A, 9B, and 9C, and the upstream water supply passages 9A, 9B, and 9C are branched into lip-side water supply passages 5A, 5B, 5C and jet flow channels. Portions of the side water supply passages 8A, 8B, 8C are provided with flow passage switching valves 52 . In addition, this toilet flushing device 200 is provided with a bypass channel 70 communicating with the jet side water supply channels 8A, 8B, 8C and the lip side water supply channels 5A, 5B, 5C downstream of the pump 36 . The on-off valve 42 and the check valve 60 are provided in the bypass channel 70 . The check valve 60 allows flush water to flow from the jet-side water supply passages 8A, 8B, and 8C to the lip-side water supply passages 5A, 5B, and 5C, and prevents the flush water from flowing backward.

In this toilet flushing device 200, in the toilet flushing process, when the flush water is sprayed from the lip water spray port 4A, the flow channel switching valve 52 is switched, and the flush water supplied from the water supply source is supplied to the lip surface. The water spray port 4A is supplied, and the on-off valve 42 is opened, and the pump 36 is driven, so that a part of the flush water stored in the water tank 35 is sent to the lip surface water spray port 4A through the bypass flow path 7O. supply. In addition, in the jet flushing process, when flushing water is sprayed from the jet nozzle 7A, the on-off valve 42 is closed, and the pump 36 is driven to discharge the rest of the flushing water stored in the water tank 35. It is supplied to the jet water nozzle 7A. At this time, the pump 36 is driven so that the flow rate of the flushing water sprayed from the lip spray port 4A and the jet spray port 7A becomes equal to or greater than a set value.

In addition, as shown in FIG. 12(B), the enlarged channel 37 arranged in the order of the water tank 35 and the pump 36 from the upstream side may be arranged in parallel with the jet side water supply channels 8A, 8B, and 8C. . In this toilet flushing device 210, on-off valves 41 are also provided in the upstream water supply passages 9A, 9B, and 9C, and the upstream water supply passages 9A, 9B, and 9C are branched into lip side water supply passages 5A, 5B, 5C and Portions of the jet side water supply passages 8A, 8B, 8C are provided with flow passage switching valves 52 . In addition, the toilet flushing device 210 is provided with a bypass flow channel 70, and the downstream end of the bypass flow channel 70 and the downstream end of the enlarged flow channel 37 and the jet side water supply channels 8A, 8B, 8C are confluent, and the downstream side The jet side water supply channels 8A, 8B, 8C communicate with the edge side water supply channels 5A, 5B, 5C. The on-off valve 42 and the check valve 60 are provided in the bypass channel 70 . The check valve 60 allows flush water to flow from the jet-side water supply passages 8A, 8B, and 8C to the lip-side water supply passages 5A, 5B, and 5C, and prevents the flush water from flowing backward.

In this toilet flushing device 210, in the toilet flushing process, when the flush water is sprayed from the lip spray port 4A, the flow path switching valve 52 is switched, and the flush water supplied from the water supply source is supplied to the lip surface. The water spray port 4A is supplied, and the on-off valve 42 is opened, and the pump 36 is driven, so that a part of the flush water stored in the water tank 35 is sent to the lip surface water spray port 4A through the bypass flow path 7O. supply. In addition, in the jet flushing process, when flush water is sprayed from the jet water nozzle 7A, the flow path switching valve 52 is switched to supply the flush water supplied from the water supply source to the jet nozzle 7A, and to The on-off valve 42 is closed, and the pump 36 is driven to supply the rest of the flush water stored in the tank 35 to the jet nozzle 7A. At this time, the pump 36 is driven so that the flow rate of the flushing water sprayed from the lip spray port 4A and the jet spray port 7A becomes equal to or greater than a set value.

Industrial availability

The present invention can be used in flush toilets.

Symbol Description

1... The main body of the toilet;

2...urinal part;

3... lip surface water channel;

4A... lip jets;

6... toilet drainage channel;

7A... jet nozzle;

5A, 5B, 5C... lip side water supply channel (5A... lip side water supply pipe, 5B... lip side flow channel, 5C... lip side connecting part);

8A, 8B, 8C...Jet side water supply channel (8A...Jet side water supply pipe, 8B...Jet side flow channel, 8C...Jet side connection part);

9A, 9B, 9C...upstream side water supply channel (9A...water supply pipe, 9B...upstream side flow channel, 9C...upstream side connecting part);

5A, 5B, 5C, 8A, 8B, 8C, 9A, 9B, 9C... water supply channels;

10, 100, 110, 120, 200, 210... toilet flushing device;

20... valve unit (water supply switching mechanism);

21... On-off valve for jet;

22...Open and close valve for lip surface;

23... flow regulating valve;

24 ... control device;

30...pressure accumulator (flow increasing mechanism);

33… water tank;

35, 36...flow increasing mechanism (35...water tank, 36...pump).

Claims (5)

1. toilet bowl flush device, it supplies with flushing water to toilet body, and described toilet body has: urinal section; Labial surface water flowing passage, it is arranged at the inside edge of the upper end open section of this urinal section; The labial surface water jet, it sprays flushing water along this labial surface water flowing passage; The toilet drainage passage, it is with the continuous mode in the downstream of described urinal section and arrange; The jet water jet, its downstream towards this toilet drainage passage sprays flushing water,

Described toilet bowl flush device is characterised in that to possess:

Water channel, it supplies with flushing water to described labial surface water jet and described jet water jet;

The water supply switching mechanism, it is arranged in this water channel, and when implementing toilet stool washing from described labial surface water jet and described jet water jet ejection flushing water, at first to spray flushing water from described labial surface water jet, from the mode of described jet water jet ejection flushing water, switch the water supply object subsequently;

The flow enlarging mechanism, it has the water tank that is communicated with and stores flushing water with described water channel, and a part that is stored in the flushing water in the described water tank is sprayed from described labial surface water jet, and remainder is sprayed from described jet water jet, reach more than the setting value thereby make from the flow of the flushing water of described labial surface water jet and described jet water jet ejection.

2. toilet bowl flush device as claimed in claim 1 is characterized in that,

From the initial flow of the flushing water of described jet water jet ejection, more than the flow from the flushing water of described labial surface water jet ejection.

3. toilet bowl flush device as claimed in claim 1 or 2 is characterized in that,

With compare from described labial surface water jet water yield ejection, that be stored in the flushing water of the part in the described water tank, increase from described jet water jet water yield ejection, that be stored in the flushing water of the remainder in the described water tank, thus from the water yield of the flushing water of described jet water jet ejection more than the water yield from the flushing water of described labial surface water jet ejection.

4. toilet bowl flush device as claimed in claim 1 or 2 is characterized in that,

Described water channel is configured by the upstream side water channel that is communicated with watering and with downstream branch formed jet side water channel and the labial surface side water channel of this upstream side water channel,

Described flow enlarging mechanism is communicated with jet side water channel.

5. toilet bowl flush device as claimed in claim 4 is characterized in that,

Described water supply switching mechanism has: the jet open and close valve, and it opens and closes described jet side water channel; The labial surface open and close valve, it opens and closes described labial surface side water channel; Control device, it is controlled with the switching of open and close valve with open and close valve and described labial surface described jet,

Described toilet bowl flush device possesses flow control valve, described flow control valve is communicated with described flow enlarging mechanism in comparing with open and close valve in the described jet side water channel by upstream side with described jet, and be arranged in the described jet side water channel of comparing with the interconnecting part that is communicated with this flow enlarging mechanism by upstream side, described flow control valve allows to the flowing of the large flow in the downstream of described jet side water channel, and allows the flowing of low discharge of side upstream.

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