JPH0339531A - Faucet direct connection type hot water cleaner - Google Patents

Abstract

PURPOSE:To exactly keep insensitive water amount regulations by a method in which the main flow path where a water amount control valve is subjected to a feedback control by a water amount sensor is provided, and a discharged water flow path with an orifice is provided between a vacuum breaker and the sensor. CONSTITUTION:When a cleaning nozzle 22 is pushed, a solenoid valve 2 is opened by a control circuit 19, and a motor 13 is actuated to open a water amount control valve 10, through which water flows from a water supply source 1 into a warm water cleaner 26. The water passes through the valve 2 and a governer 21, reaches through the valve 10 and a vacuum breaker 8 to a branched part 9, and is distributed to the main flow path 5 and a discharged water flow path 6. In the main flow path 5, the water is heated in a warm water tank 4 through a flow rate sensor 12 and is discharged through the orifice 11 into a stool 25 as a discharged water 18 in the flow path 6. In the circuit 19, a cleaning water amount detected by the sensor 12 is compared with a specified water amount, and when the cleaning water amount is short, the motor 13 is actuated to open the valve 10. Also, when the water amount is abundant, the motor 13 is operated to throttle the valve 10.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention provides a water supply 1 installed in a Western-style toilet, etc. "Ji'
The present invention relates to an i-type hot water washer, and particularly to provide a hot water washer that is directly connected to a water supply and is easy to use, and which reliably satisfies the insensible water amount regulations specified by the Japan Water Works Association.

(Prior Art) In general, a hot water washer directly connected to a water supply system has a flowchart shown in FIGS. 7 to 9.

That is, as shown in FIG. 7, the water supplied from the water supply source 1 passes through the solenoid valve 2 and is connected to the main flow path 5 and the waste water flow by the branch part 9 provided between the solenoid valve 2 and the flow ff1g control valve 3. 6.

Further, in the main flow path 5, the flow rate of the water branched from the branch section 9 is adjusted through the flow rate adjustment, and then heated in the hot water tank 4 and discharged from the nozzle 7 as wash water 17. - No.j, in the waste water channel 6, the water branched from the branch part 9 is transferred to the waste water 18, and the excess water is transferred into the toilet bowl (not shown).
mm Ice water.

The block diagram shown in FIG. 8 is based on the flow control valve 3 shown in FIG.
This is an example in which a three-way valve flow rate adjustment valve P3a is used instead, and this flow rate adjustment f'3a regulates the flow rate and branches the flow path into a main flow path 5 and a wastewater flow path 6. . In addition, the hot water tank 4 in the middle of the waste water channel 6 and in the main channel 5
A vacuum breaker 8.8 is provided after the.

The block diagram shown in FIG. 9 is an example in which a flow control valve 3 and a distribution valve 29 are provided in place of the flow control valve 3a of the three-way valve shown in FIG. Distribution valve 29
The flow path is branched into a main flow path 5 and a wastewater flow path 6.

Also in this block diagram, a vacuum breaker 8.8 is provided at the same location as in the block diagram shown in FIG.

Therefore, as is clear from the above-mentioned configuration, the block diagrams shown in Figs. is divided into the main flow path 5 and the waste water flow path 6, and the water supply amount is 50i! when the water supply pressure is IKgf'/cJ.
The reason is that consideration has been taken to ensure that 2. /llr. It is also necessary to install a vacuum breaker in order to satisfy the regulations of the Japan Water Works Association.

(Problem to be Solved by the Invention) However, in the flow diagram of such a conventional hot water washer directly connected to the water supply, in the system shown in FIG.
Even if they are placed in the wastewater flow path 6, when the flow rate adjustment button 3 is fully opened, 50. There was a problem in that the water had to be flushed more than 2 g/Ilr, resulting in a waste of water.

Furthermore, in FIG. 8, the structure of the flow control valve 3 is complicated, and in FIG. 9, when the flow fflFa control valve 3 is throttled, there is a risk that the waste water flow rate will become less than the insensitive water type.

Furthermore, in FIGS. 8 and 9, it is necessary to provide vacuum breakers 8 in both the main flow path 5 and the waste water flow path 6, which causes problems such as the flow paths being complicated.

(Means for Solving the Problems) The present invention has been made in view of two circumstances, and its purpose is to provide a small and easy-to-use water supply system that reliably satisfies the insensitive water supply regulations. In order to achieve the above purpose, we provide a direct-connection hot water washer with a solenoid valve and a water flow control valve from the water supply source.

Vacuum breaker, water level sensor, hot water tank.

A main flow path which is piped in the order of the nozzle and in which the water flow control valve performs feedback control via a control circuit by the water flow sensor, and a wastewater flow path having an orifice between the vacuum breaker and the water flow sensor. It is characterized by

(Function) As shown in the flowchart of FIG. 1, the present invention operates as shown in FIG. Water enclosure sensor 12. Hot water tank 4.
The water flow control valve is feedback-controlled by the water sensor 12 via a control circuit 19, and the waste water flow path 6 is connected from between the vacuum breaker 8 and the water sensor 12. By providing the main flow path 5 and the waste water flow path 6, which are piped and equipped with an orifice 11, it is possible to reliably comply with the insensible water amount regulations stipulated by the Japan Water Works Association, and the vacuum breaker is a vacuum breaker for the main flow path and the waste water flow path. It acts to do both at the same time.

(Example) The following is a second example of the hot water washer directly connected to the water supply according to the present invention.
This will be explained in detail using FIGS. 6 through 6.

Note that the same parts as in the above conventional example are designated by the same reference numerals, and detailed explanation thereof will be omitted.

As shown in FIG. 2, the hot water washer directly connected to the water supply system according to the present invention has a water supply source 1, a water stop valve 1a, a check valve 1b, and a connecting fitting 1.
Water is supplied to the hot water washer main body 26 via c.

Further, in the hot water washer main body 26, the solenoid valve 2. governor 21
．． Water flow control valve 10. Vacuum breaker 8, water level sensor 12. Hot water tank 4. Main channel 5 piped in order of nozzle 7
A water distribution sensor 12 is connected to the vacuum breaker 8 and -.
A waste water channel 6 having an orifice 11 from a branch part 9 between
In addition, a vacuum breaker pipe 28 is provided between the toilet bowl 25 side of the wastewater flow path 6 and the vacuum breaker 8, and water supplied into the hot water washer main body 26 through the flow paths 5 and 6 is provided. Spout water.

Furthermore, one control circuit is provided in the hot water washer main body 26, and when the user presses the washing switch 22 provided in the panel 27 during washing operation, a solenoid valve is activated via the one control circuit. The control circuit 19 also receives an output 23 from the water flow sensor 12 and outputs an output 24a that operates the DC motor 13.
(14) is configured to perform a series of cleaning operations such as outputting the signal b and performing feedback control to rotate the water flow control valve 10 via the reduction gear 20.

Next 1. In the block diagram shown in FIG. 2 having the configuration as described above, the water ffli, 1911 portion that performs water flow control will be described in detail with reference to FIG. 3.

In the water flow control part, a cylindrical valve 15 is rotatably housed in a valve body 30, and a slit 14 is formed on the outer peripheral surface of the valve 15 to communicate with an opening 16 formed in the valve body 30. It is. Further, this slit 14 is provided so that its width increases continuously as the valve 15 rotates.

Further, a DC motor 13 is connected to one end of the valve 15 via a reduction gear 20, and the decelerated and torqued rotation of the DC motor 13 is transmitted to the valve 15.

That is, with the above configuration, the width of the slit 14 increases or decreases by rotating the valve 15, and the width of the opening 1 increases or decreases.
The opening area of 6 is changed to control the amount of water.

Further, a vacuum breaker body 31 that houses a vacuum breaker is fixed to the outside of the valve body 30, and the inside of this vacuum breaker body 31 is fixed to the outside of the valve body 30.
The slit 14 is an opening 1 formed in the valve body 30.
6.

Further, the upper end of the vacuum breaker body 31 is provided with a connection port 5a that connects to the main flow path 5, and a connection port 6a that connects to the wastewater flow path 6 and has an orifice 11 inside.

Next, the operation of the above configuration will be explained using FIG. 2.

Cleaning switch 22 provided on the user's operation panel 27
When pressed, the control circuit 19 opens the solenoid valve 2 and drives the DC motor 13 to gradually open the water flow control valve 10 via the reduction gear 20.

This allows water to flow from the water supply source 1 to the water stop valve 1a and the check valve 1b.
, and flows into the hot water washer main body 26 through the connection fitting 1c.

In addition, the water that has flowed into the muddy water washer main body 26 is removed from the solenoid valve 2.
The water flow control valve "0. The water passes through a vacuum breaker 8 and enters a branch 9, where it is distributed into a main channel 5 and a waste water channel 6.

In the main flow path 5, the water branched from the branch section 9 is heated to an appropriate temperature in the hot water tank 4 via the flow rate sensor 12, and is discharged from the nozzle 7 as cleaning water 17, while in the waste water flow path 6. 1. The branched water is discharged into the toilet bowl 25 through the orifice 11 as waste water 18.

Furthermore, in one control circuit, the amount of washing water detected by the flow rate sensor 12 is compared with a specified amount of water stored in this control circuit 19, and when the amount of washing water is insufficient than the specified amount of water, the water amount control valve 10 The DC motor 13 is rotated via the reduction gear 20 so as to open the valve, and when the amount of cleaning water is greater than the specified water amount, the DC motor 13 is rotated in the direction to throttle the water amount control valve 10 to automatically control the amount of cleaning water. Feedback control is performed to keep the temperature constant.

Next, in the above-mentioned operation, the operation of the water amount control section that controls the water amount will be explained in detail with reference to FIG. 3.

The water flowing into the valve body 30 from the solenoid valve 2 flows through a cylindrical valve 15 provided in the valve body 30 in a circular motion.
The liquid flows into the vacuum breaker body 31 through the slit 14° formed in the valve 15 and the opening 16 formed in the valve body 30. Here, the main flow path 5 branches into a waste water flow path 6, and in the main flow path 5, water is discharged as cleaning water via the flow rate sensor 12, and in the waste water flow path 6, water is sent to the connection port 6a. Water is discharged as waste water through the provided orifice 11.

In addition, the control circuit 19 compares the amount of washing water detected by the water amount sensor 12 with a specified amount of water stored in the control circuit 19, and when the amount of washing water is insufficient than the specified amount, the DC motor 13 is activated. Slit 14 provided in valve 15
Feedback control of the amount of cleaning water is performed by moving the DC motor 13 in a direction to widen the opening area of the slit 14 provided in the valve 15 when the amount of cleaning water is larger than the specified water amount, and moving the DC motor 13 in a direction to narrow the opening area of the slit 14 provided in the valve 15.

The opening area of the orifice 11 is determined according to the insensible water amount regulation (50 g/hour) when the cleaning water 17 flowing through the main flow path 5 is the specified minimum water amount stored in the control circuit 19. -834cc/min).

In other words, the minimum amount of washing water for this type of equipment is about 500cc/min, so when the washing water ff is 1500cc/min, 3
If the diameter of the orifice is determined so that water of 34 cc/min or more is discharged into the toilet bowl, it is possible to always meet the insensitive water volume regulations of the Japan Water Works Association without wasting too much water.

Next, a second embodiment of the water flow control portion in which the governor, water flow control valve, and vacuum breaker are integrated as an integral part will be described in detail with reference to FIGS. 4 to 6.

As shown in FIGS. 4 and 5, in the water ffi control part, a vacuum breaker body 31 containing a vacuum breaker 8 is screwed to the upper end of a valve body 30, and one side end of the valve body 30 has a vacuum breaker body 31 screwed therein. The valve body 3 is a cover 33 that houses the DC motor 13 that constitutes the water flow control valve.
It is screwed to 0.

Next, these internal structures will be explained in detail using FIG.

That is, the DC motor 13 is fixed to the valve body 30 by the motor mounting plate 34, and the DC motor 1
A worm gear is attached to the shaft of 3,
Power is transmitted to the valve 15 via the reduction gear 20 (1
It is a 4-story building.

Further, the outer circumferential surface of the valve 15 is provided with a slit 14 in the shape of a square that expands continuously as the valve 15 rotates, and an elongated opening 16 formed in the valve body 30.
The water flow control valve is constructed so as to communicate with the water flow control valve.

Further, a governor receiver 32 is provided at the lower end of the valve body 30, and a rubber governor 21 is housed within the governor receiver 32. That is, when the water supply pressure increases, the rubber governor 21 deforms and is pressed against the governor receiver 32, thereby reducing the inner diameter of the central portion and exerting a governor function.

Note that the valve body 30 and the valve 15 are made of plastic.

In addition, the slit 14 provided in the valve 15 is formed so that the slit width expands as it rotates, and by appropriately selecting the slope at which the slit width expands, the opening degree of the pulp 15 can be adjusted under the condition that the water supply pressure is constant. and the amount of water can be changed almost linearly.

Furthermore, a reduction gear 2 connected to the valve shaft 15
0, bosses are provided at two locations each at the start point and end point to define the valve rotation range, and the valve body 3
0 is provided with two stoppers, and the DC motor 13
It has a structure that determines the starting point and ending point.

(Effects of the Invention) As described above, the present invention has the water ff1ffi control valve controlled by the water flow sensor to keep the amount of washing water constant, and the orifice provided in the waste water flow path to keep the amount of washing water equal to the minimum amount of washing water. Sometimes, the amount of waste water is set so as to satisfy the insensible water amount regulations set by the Japan Water Works Association, so the above insensitive water amount regulations can be reliably observed.

Further, by providing a wastewater flow path between the vacuum breaker and the water flow sensor, it is possible to vacuum break the main flow path and the wastewater flow path with one vacuum breaker, thereby reducing the cost of the equipment.

Furthermore, according to the invention of claim 2, the water flow control valve consisting of a governor, a DC motor, a reduction gear, a valve, and a valve body, and a vacuum breaker housed in a vacuum body are made into an integral part, thereby reducing the size of the equipment. can be achieved.

Further, according to the invention of claim 4, the slit shape formed in the valve has a structure in which the slit width continuously expands as the valve rotates, so that the valve opening degree and the amount of water passing through the slit are linear under a constant water condensation pressure. We propose a flow control valve with the following relationship.
You can do L.

Furthermore, according to the fifth aspect of the invention, by forming the valve shaft from plastic, it is possible to prevent clogging of the slit by octopuses and stiffness of the valve shaft.

[Brief explanation of drawings]

FIG. 1 is a flow diagram showing the operation of the main washer, and FIG. 2 is a block diagram of a hot water washer directly connected to the water supply to which the present invention is applied.
FIG. 3 is an enlarged sectional view of the water fin 1i118 portion shown in FIG. 2, FIG. 4 is a front view showing a second embodiment of the water flow control portion shown in FIG. 2, and FIG. 5 is a plan view of FIG. 4. 6 is a sectional view taken along line A-A11j shown in FIG. 5, and FIGS. 7 to 9 are flowcharts of a conventional hot water washer directly connected to the water supply. 1... Water supply source 2... Electromagnetic bulb F 4... Hot water tank 5... Main channel 6... Waste water channel 7... Nozzle 8... Vacuum breaker 9... Branch part 10 ...Water ail; Control block 11... Orifice 12... 1 water flow sensor ... Control circuit 9 Branch section 10 Water flow control valve 12 Water flow sensor 4 Hot water tank 8 Vacuum breaker 9 Branch section 11 Orifice 12 Water flow sensor Fig. 3 Fig. Fig. 1 Fig.

Claims (1)

[Claims] 1. A solenoid valve, a water flow control valve, a vacuum breaker, a water flow sensor, a hot water tank, and a nozzle are connected in this order from a water supply source, and the water flow control valve is feedback-controlled by the water flow sensor via a control circuit. 1. A hot water washer directly connected to a water supply system, comprising: a main flow path for water flow, and a waste water flow path having an orifice between the vacuum breaker and the water flow sensor. 2. The hot water washer directly connected to the water supply according to claim 1, characterized in that a governor is provided between the solenoid valve and the water flow control valve, and the governor, the water flow control valve, and the vacuum breaker are integrated into one part. . 3. The water flow control valve is directly connected to the DC motor and reduction gear,
The hot water washer according to claim 1 or 2, further comprising a cylindrical valve having a slit on its outer circumferential surface. 4. The hot water washer directly connected to the water supply according to claim 3, wherein the slit provided on the outer circumferential surface of the valve is formed in such a shape that the slit width continuously expands as the valve rotates. 5. A hot water washer directly connected to the water supply, characterized in that the valve is made of plastic.