JPS6040441A - Toilet bowl washing apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] Unreleased F! A relates to a toilet flushing device that discharges flushing water only when a person uses the toilet.

[Background Art] Conventionally, devices have been provided in which a button or the like of a pulp device for flushing is manually pressed to cause flushing water to flow into the toilet bowl to flush the toilet bowl. There are many cases where the toilet bowl is forgotten to be flushed due to forgetting to press the record button, etc. In such cases, there is a problem that dirt, sewage, etc. are stuck to the toilet bowl, resulting in unsanitary conditions. Another problem was that when the toilet bowl was used in a dry state, dirt and sewage tended to stick to it. Therefore, as shown in Japanese Patent Publication No. 54-18057, a detector is used to detect when a person comes in front of the toilet bowl, and then flush a small amount of water to wet the toilet bowl. It has been proposed to prevent this from happening, detect when a person has left, and flush the toilet bowl with water. By the way, there are cases where people come in and use the toilet continuously right after the other person has left, such as in a public toilet at a train station. Do not use it while the flow is flowing.
There was an inconvenience that sewage splashed around and was unsanitary. In order to solve this inconvenience, it is possible to forcibly stop the large amount of water spraying when the next person comes during the large amount of water spraying, but if a large number of people come in succession, There was a problem that the amount of water sprayed was reduced and the cleaning ability was reduced.

[Purpose of the invention]

The present invention has been made in view of the above points, and its purpose is to prevent sewage from splashing during continuous use, and to wash water even when many people come continuously. An object of the present invention is to provide a toilet flushing device capable of preventing a decrease in fp capacity.

[Disclosure of the invention]

As shown in FIG. 1, the present invention comprises a toilet bowl + 11, a valve 5 device (3) such as an electromagnetic valve for flushing water to the toilet bowl 11), and a valve 5 device (3) such as a solenoid valve for flushing water to the toilet bowl 11), and a valve 5 device (3) such as a solenoid valve for flushing water to the toilet bowl 11). A human body detection sensor (2) such as an ultrasonic sensor that continuously emits a signal, and this human body detection sensor (
2), and a control device (7) which receives the output of step 2) and controls the valve device i31.

The valve device (3) consists of a small amount of water discharging means for discharging a small amount of flush water just to wet the toilet bowl il+, and a large amount of water discharging means for discharging a large amount of flush water for cleaning the toilet bowl fi+, and a control device. (7) Lri valve device 1
3) A human body detection sensor and a timer means for setting the opening time of the small amount water discharging means and large amount water discharging means based on the output of 2) are built in, and the small amount water discharging means is set by the human body detection sensor 121.
turn-on (opened in -i), the toilet ill is turned on at least before the person starts defecating by spraying a small amount of flush water.
The means for discharging a large amount of water is opened by the turn-off signal of the human body detection sensor (2), and the toilet fi+ is kept wet for a predetermined period of time set by the timer means after it is detected that the person has left. A large amount of rinsing water is flushed through the area. In addition, the above control device +71
K ld, when a new human body detection sensor turn-on No. 61 occurs during mass water discharge, this turn-on signal Jifj
a first signal priority means that prioritizes and stops the large amount of water discharge;
a calculation means for accumulating the remaining time of the timer means when the first signal priority means operates; and a first 4a'j3-priority means when the accumulated value of the remaining time exceeds a set value; A second signal priority means is provided that gives priority to discharging a large amount of water for a certain period of time. This has the effect of preventing sewage from splashing during continuous use, and the second signal priority means allows continuous stoppage of large amounts of water to prevent the timer from accumulating the remaining time. Since a large amount of water is forcibly discharged when the value exceeds the set value VC,'Z, the cleaning ability is prevented from decreasing even if many people come continuously. There is. In addition, in the configuration example shown in Fig. 1,
Although we have shown an example in which a reflection-type ultrasonic sensor is used as the human body detection sensor 12), a transmission-type ultrasonic sensor may also be used, and as shown in FIG. 9) A cut-off type photoelectric switch may be used.

(Example) Figures 3 to 5 show examples of the valve device 13) used as a small amount water discharging means and a large amount water discharging means. It was designed to be adjusted to That is, electromagnetic pulp13)
are the stop valve part tl[9, the filter part U■, and the electromagnetic valve part (
171 are sequentially arranged along the route from the inlet J81 to the toilet connection port (2). The water stop valve part 1151 is composed of a water stop valve equipped with a valve 1211 that is intended to close the opening (A), and the valve I211I''i is normally pushed upward by water pressure to close the opening (I). ) is fully open,
By tightening the screw of the water stop valve 221, the valve (21
) is completely closed and the flow of water through the opening 20) is blocked.

The filter part 116i1Fi is configured with a filter and a filter removal screw, and the filter (c) removes dirt and metal from the flowing water. electromagnetic pulp j″
11ζ (171 is cylinder; plunger 12ζ in four (
→, the plunger/edge is moved downward (the spring that lowers the instep)
331, two upper and lower city magnet coils (27a) (27b) provided in the direction of movement of the plunger t712■, and a pulp plate (c) that moves underground with the underground movement of the plunger t712. The pulp plate (c) has a valve opening made of a plum material that is absorbed on the lower surface of the pulp plate (c), and a valve seat hook that shuts off the hydraulic power by pressing the valve opening. Also, t"tT'1211 is provided with two lower voluminous parts (26a) (26b), and the electromagnet coil of ggl is
y (27a) and the first ampullae (26a), the second electromagnetic coil (27b) and the second
When the first electromagnetic coil (27a) is excited, the force of the first ampullae (26a) is set to be smaller than that of the ampullae (26b);
The words move up by the step between them to form the valve (b) and the valve seat (3).
0), as shown in Figure 4, to form a small amount water discharging means (3a) that allows a small amount of washing water to flow, and when the second electromagnetic coil (27b) is excited, In response to this, the ampulla of @2 (26b) d (sucked) plunger 14 moves by the step between them and widens the gap between the valve opening and the valve seat (thorns) as shown in Figure 5. Thus, by controlling the electromagnets (27a) and (27b) with the control device (7), a large amount of water discharging means (3b) for discharging a large amount of washing water is formed. The operation can be realized.

In addition, FIG. 3 shows the state when both electromagnetic coils (27a) and (27b) are de-energized, and the spring t' 12B is pushed down by the spring (dark) to completely shut off. The inner glue is the manual heir, and it is connected to the permanent magnet (34) at the bottom, and the manual heir (3t+1k
By pulling it up in the h direction, the permanent magnet G4 is also pulled upward, which also moves the plunge P example upward, so that even in the event of a power outage, the valve can be opened manually to allow flushing water to flow. .

Figure 6 shows a specific circuit diagram of the control device (7), where (SL) is the output contact of the human body detection sensor +21, which turns on when a person stands in front of the toilet il+, and when the person leaves the toilet il+. and turn off. The timer means for setting the opening time of the small quantity water discharging means (3a) and the large quantity water discharging means (3b) includes an inverter circuit (1+) and a monostable multivibrator (Ml) for setting the large quantity water discharging means after the person has left. , and an off-delay timer (DTx) that is set to open when a small amount of water is released when someone comes. In addition, in the embodiment, a monostable multivibrator (
A monostable multivibrator (Ml) (
The OR circuit (01) which calculates the logical sum of the output vM, . , the large-volume water spraying means (3b) is opened for a short time immediately after the output contact (Sl) of the human body detection sensor (2) is turned on, and is opened for a relatively long time after the output contact (Sl) is turned off to spray a large amount of water. It has become. In the figure, (D+) (Dz) is a surge removal diode,
(Q+) (Q*) are drive transistors. (
A1) is an AND circuit forming the first signal priority means, and a new human body detection sensor is activated during the time limit of the monostable multivibrator (Ml), which is a timer means for setting the opening time of the large-volume water spraying means (3b). When the turn-on signal (2) occurs, a signal priority means is formed that gives priority to this turn-on signal and blocks the large-volume water discharging means (3b),
When a continuous stream of people arrive, the system immediately stops spraying large amounts of water to prevent splashing. On the other hand, the AND circuit (A2) detects the remaining time of the timer means when the first No. 4g priority means operates (time-limited open time disabled by the signal priority means @l), and the remaining time of the timer means is detected. The remaining amount integration circuit (-
This remaining time is accumulated in the standard value setting circuit (ST). When the accumulated value exceeds the set value set in the basic prefecture setting circuit (ST), a cleaning required signal indicating insufficient cleaning is output from the comparison circuit (CP). , the monostable multivibrator (M3) force forming the second signal priority means; triggered, the monostable multivibrator (M3) output forcibly opens the large volume water discharging means (3h) by RjA at a predetermined time, and the toilet bowl is flushed. Insufficient cleaning can be resolved by forced cleaning. In addition, the remaining amount integration circuit (TI) #-t AND circuit (A2) output VAI
Each pulse width of the pulse train T21°T22, Tn...
digitized and integrated using a microphone 0:l:,l fuser (comparison with a reference value may be done at the same time), or integrated using an integrating circuit that converts time into voltage. I can think of something that was done.

Hereinafter, the operation of a system using an integrating circuit as the remaining amount integrating circuit (TI) will be specifically explained. Now, when a person comes alone, that is, after the period of large-volume flushing water after use has ended, the AND circuit (A1) output VA, is equal to the monostable multivibrator (Mυ output), Fig. 7 The operation is as shown in the time chart in Figure 8.In other words, when a person comes in front of the toilet +11, the output contact signal VS+
1. becomes H level and the output contact signal VSI rises. For a short period of time from tl' to tl', the output VM2 of To @monostable multipipe becomes H level, and the weight magnet △ coil (27b) of the mass water discharging means (3b) is energized to discharge a large amount of water before use. When water is sprayed, someone leaves and the output contact signal V S
1 falls for a relatively long period of time from t1 to t2 (
T2) Output V of the same car's stable multivibrator (Ml)
When the Mt2>iH level is reached, a large amount of water is sprayed after use. On the other hand, the output VD of the off-delay timer (DTl)
T1 becomes H level immediately after the output contact (St) is turned on, and becomes L level at time t3 after a certain period of time TD from time t3 when large volume water spray is stopped. The coil (27a) is energized and a small amount of water is sprayed. The reason why the small amount of water is stopped after a certain period of time TD after the large amount of water is stopped is to prevent the water hammer phenomenon.
The reason why a large amount of water is sprayed for a short time To before use is to make the entire toilet bowl +11 sufficiently wet before use. In the figure, VIN is the output of the inverter (It),
vot is the output of the OR circuit (ol).

On the other hand, if a person comes continuously, that is, the output contact (Sl) of the human body detection sensor (2) opens the monostable multi-vibrator (Ml) at a limited time T! If it is turned on during the operation, as shown in the time chart of Fig. 9, at that point the output of the AND circuit (A1) immediately becomes the I LI level, and the large amount of water discharged after use in the previous cycle is stopped.
A large amount of water is sprayed for a short period of time before use in the next cycle. This prevents a large amount of washing water from being sprayed over a long period of time (13 hours) and causing splashes when used by people who come in succession.

By the way, the period of large amount of water discharge when people come continuously is the period of IHL level of OR circuit (Ol) output VO+,
In the case shown in the time chart of FIG. 8, it is To.

T/, T/, TP, and the amount of water spraying time is shorter than if a person came alone, resulting in insufficient cleaning power. The amount of reduction in the water spraying time is the total of the remaining time Ttt', T2/*T*s', etc. of the timer means. Here, the remaining time T*(s T22', Tri' is the time T when a large amount of water is actually sprayed since T2η is opened when a large amount of water is sprayed after use)
2t, Tzx + TH... subtracted value, AND circuit (a2) K and monostable multi-by-play s
(ML) Output VMI? :/Circuit CAt) Output V
During the pulse (ci No. VA
2 (!:). This pulse width signal VA is converted into a voltage level signal Va and integrated by a remaining amount integration circuit (TI) K consisting of an integrating circuit.The integrated voltage level signal Va is When the set value Vsi is exceeded, the comparator circuit (CP) outputs a cleaning signal vb, the monostable multi-pipe filter (M3) is tripped, and the forced cleaning signal V
c is output, and a large amount of water is forcibly discharged during the dark period Ts, so that the accumulated lack of cleaning is eliminated at once.

At this time, monostable multivibrator (M3) output Vc
The integrated value of the timer remaining amount integrating circuit (TI) is cleared.

〔Effect of the invention〕

The present invention has a human body detection sensor that detects a person who is using the toilet, and a turn signal from the human body detection sensor that opens the toilet to discharge a small amount of water, and a turn signal that opens the toilet to discharge a large amount of water. a pulping device for performing water discharging, a timer means for setting water discharging time of the pulp device, and a first means for stopping the mass discharging by giving priority to this turn-on signal when a new turn-on signal of a human body detection sensor is generated during discharging a large amount of water. a signal priority means; a calculation means for integrating the remaining time of the timer means when the first signal priority means is activated; The system is also equipped with a second signal priority means that further gives priority to the Odori water discharge for a certain period of time, and the first signal priority means stops the large volume water discharge if a person comes during the large volume water discharge. This has the effect of preventing sewage from splashing during continuous use.Also, due to the second signal priority means, large volume water discharging stops occur continuously and the remaining time of the timer means is reduced. A large amount of water is forcibly discharged when the total darkness value exceeds a set value, which prevents the cleaning performance from decreasing even if a large number of people come in a row. effective.

[Brief explanation of the drawing]

Is Fig. 1 a schematic configuration of the present invention? 2 is a front view showing a schematic configuration of the same, FIGS. 3 to 5 are diagrams showing the configuration and operation of the main parts of the same, FIG. 6 is a circuit diagram of the main parts of the same, and FIG. 9 to 9 are explanatory diagrams of the same operation as above. +11 is a toilet bowl, 121Fi human body detection sensor, -3) is a valve device. Agent Patent Attorney Ishi 1) Chief 7 Figure 7 VDTt Figure 8 a Figure 9 3

Claims (1)

[Claims] 111: a human body detection sensor that detects a person using the toilet; a pulp device that opens in response to a turn-on signal from the human body detection sensor to discharge a small amount of water, and opens in response to a turn-off signal to discharge a large amount of water; a timer means for setting 1jffl when water is discharged from the pulp apparatus; and a first signal priority means that, when a turn-on signal of a new human body detection sensor is generated during a large volume of water discharge, gives priority to this turn-on signal and stops the mass water discharge; arithmetic means for integrating the remaining time of the timer means when the first signal priority means operates; and a calculation means for adding up the remaining time of the timer means when the accumulated value of the remaining time exceeds a set value, giving further priority to the first signal priority means and keeping it constant. A toilet flushing device comprising a second signal priority means for discharging a large amount of water for a certain period of time.