JPH01192924A - Water supplyer with flash valve - Google Patents

Abstract

PURPOSE:To exactly set up the amount of water to be supplied to small or great amount by a method in which the amount of water to be supplied is always set up on the basis of a reference position. CONSTITUTION:A flash valve 1 is connected through, a connecting tube 2 and a water-stop tube 3 to a water conveyance tube 4 and also through a drain tube 5 to a stool. A cap-shaped guide 7 is screwed with the upper part of the casing 6 of the valve 1, inside of which a piston valve 8 as a valve body is housed in a vertically movable manner. In case where service interruption, unexpected disconnection of power source, or the outgoing of user from toilet room occurs, a vertically movable shaft 27 as a regulator is one returned to a set reference point, and the amount of water to be supplied is set up on the basis of the set reference point.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a water supply device equipped with a flush valve and used in a flush toilet.

(Prior art) Conventional water supply devices of this type have a system in which, after a user enters the 1-ile, until a predetermined period of time has elapsed, it is assumed that the user is using the urine, and the flush valve is turned off by operating the flush valve. The amount of water supplied per unit time that is flushed into the toilet bowl is set to a small value, and after the predetermined time period has elapsed, the amount of water supplied per unit time is set to the amount of water per unit time, which is regarded as the use of urination, to save water when using urine. A system configured to enable this has been proposed.

(Problem to be Solved by the Invention) However, in this conventional device, changing the setting of the water supply amount causes the regulating member that regulates the open position of the valve body for opening and closing the flush valve to be moved based on the rotation of the pulse motor. The movement position of the regulating member is set only by the amount of rotation of the pulse motor, so if there is a power outage or the power is accidentally turned off while changing the water supply amount setting, Not only does this have the problem that the water inlet is not set correctly to the small or large state even if the power is turned on again, but also the mechanism that rotates the Pal 3 motor or controls it. Due to the accumulation of small errors, if you use the water supply many times, the required water supply port may not be set to L'? The problem was that I couldn't do it.

This invention was made by focusing on the problems in the conventional technology as described above, and its purpose is to prevent power outages or inadvertent power supply while changing the settings of the water inlet of the flush valve. Even if the power is turned on after that, the water supply m will be set accurately to either small or large, and the required water supply amount will be set to 1! ? It is an object of the present invention to propose a water supply device which can always obtain the required water supply in the same manner as described above without accumulating errors even after multiple uses.

(Means for Solving the Problems) In order to achieve the above object, the water supply device of the present invention regulates the amount of water supplied after the user leaves the toilet or when the power is turned on. The restriction member is once placed at the reference position and then moved to the restriction position of the vehicle.

(Function) In the water supply device configured as described above, if there is a power outage, the power is turned off inadvertently, or the user leaves the toilet, the regulating member is temporarily returned to the reference setting point. Therefore, the water supply amount is always set based on the reference position, and the water supply port is accurately set to small or large.

(Example) Hereinafter, an example of a water supply RBff embodying the present invention will be described in detail with reference to the drawings.

As shown in FIG. 1, the flush valve 1 is connected to a water pipe 4 via a connecting pipe 2 and a water stop valve 3, and is also connected to a toilet (not shown) via a discharge pipe 5. A cap-shaped guide member 7 is screwed onto the upper part of the casing 6 of the flush valve 1, and a piston valve 8 serving as a valve body is accommodated therein so as to be movable up and down.

In normal times when water is not flowing into the toilet bowl, the piston valve 8 is placed in the downward movement position, the flange portion 9 abuts against the valve seat 10, and the discharge port 11 is closed. Also, at this time, the water in the casing 6 is drained through the strainer 12 and the small hole 1.
3 into the upper valve chamber 14, and its water pressure presses the actuator 15 installed in the piston valve 8 downward, so that the inner valve seat 17 is closed by the valve plate 16 at its upper end. It has become.

A handle 18 is protruded from the side of the casing 6, and when the handle 18 is operated to flush water into the toilet bowl,
The engagement rod 19 protrudes inward against the action of the spring 20 and engages with the actuator 15. This causes the actuator 15 to
1, the valve plate 16 is tilted against the action of the inner valve seat 1.
Move away from 7. Then, the water in the upper valve chamber 14 passes through the piston valve 8 and flows downward, and the water pressure in the upper valve chamber 14 decreases, so the piston valve 8 is bounded by the water pressure in the casing 6, and its flange portion 9 is separated from the valve seat 10 and the discharge port 11 is opened. Therefore, water flows out into the toilet bowl via the discharge port 11 and the discharge pipe 5 at once.

Also during this water supply, water in the casing 6 flows into the upper valve chamber 14 through the strainer 12 and the small hole 13. When the upper valve chamber 14 is filled with water, the piston valve 8 is moved downward again by water pressure from above, the discharge port 11 is closed by the flange portion 9, and water supply to the toilet bowl is stopped.

A threaded cylinder 22 is provided protruding from the center of the upper surface of the guide member 7,
A support plate 23 is screwed onto this threaded cylinder 22, and a support cylinder 26 is also screwed through washers 24 and 25. An elevating shaft 27 serving as a regulating member is rotatably and vertically supported within a support cylinder 26 via a bearing 28, and has a threaded portion 29 at its lower end that is screwed into the guide member 7 and projects into the upper valve chamber 14. is formed, and a follower e gear 30 is provided at the upper end.

A pulse motor 31 serving as a driving member is mounted on the support plate 23, and a driving gear 32 meshing with a driven gear 30 is mounted on the motor shaft.

As the pulse motor 31 rotates, the elevating shaft 27 is rotated via the driving gear 32 and the driven gear 30, and the elevating shaft 27 is placed at a small regulation position where the upward movement position of the piston valve 8 is restricted by the action of the threaded portion 29. P1 and large regulation position P2
and a reference position P3.

The reference position detection sensor 33 is attached to the pulse motor 31 via a support member 34, and the elevating shaft 27 is connected to the subordinate gear 3.
0 and is lowered to the reference position P3, this sensor 3
A detection signal is output from 3.

A cover 35 is mounted on the support plate 23, and this cover 35
5 covers various members such as the pulse motor 31.

Next, the control circuit configuration of the water supply device configured as described above will be explained based on FIG. 2.

1. Central processing unit fH (CPut) constituting the second control means
) 41 is equipped with a timer circuit 41a, and this CPU 41 includes a read-only memory (ROM) 42 storing programs for controlling the operation of the entire device, and a read/write memory for temporarily storing calculation results. Possible memory (RAM>43) is connected.

The CPU 41 includes a reference position detection sensor 33 and a lifting shaft 2.
10th Tadry dip switch 44 for setting the number of drive pulses of the pulse motor 31 required to raise the motor 7 from the reference position P3 to the small regulation position P1, and the 10th tally dip switch 44 for setting the number of driving pulses of the pulse motor 31 required to raise the axis 27 from the small regulation position flP1 to the large regulation position IP2. a 20th Taridate switch 45 for setting the number of drive pulses of the pulse motor 31 required to raise the water supply to 100 mL, and a changeover switch 4 for switching the water supply device between an operating state and a test state.
6 and a door switch 47 provided on the toilet door as a detection means for confirming entry, and various signals are inputted to the CPU 41 from these. Also, CPLI41
There is a pulse motor 31 and an alarm lamp 48 for abnormality alarm.
are connected via drive circuits 49 and 50, and a drive or stop signal is output from the CPU 41 to them.

Next, the operation of the water supply device configured as described above will be explained in Section 3a.
, FIG. 3b, and FIG. 4 will be explained.

Now, when the Nm switch (not shown) is turned on, the CPU
41, the operation of the flowchart shown in FIGS. 3a and 3b is started, and first, in step 1 (hereinafter, step is simply represented by S), the memory etc. are initialized. Next, at 82, the timer circuit 41a causes a predetermined time T.
1 (20 seconds in the example) is started, and S
At step 3, the pulse motor 31 is reversed and the elevating shaft 27 begins to be lowered. And S4. In S5, it is determined whether or not a detection signal is output from the reference position detection sensor 33 before the predetermined time T1 elapses, and if the detection signal is not output even after the predetermined time T1 elapses, it is determined that there is a freeze or a foreign object. Assuming that the static shaft 27 is not lowered to the reference position ffP3 due to contamination, etc., S6. After the measurement operation based on the timer circuit and the reverse rotation operation of the pulse motor 31 are stopped in S7, the alarm lamp 48 is turned on in S8 to notify of an abnormality.

On the other hand, when the elevating shaft 27 is normally lowered to the reference position P3 due to the reverse rotation of the pulse motor 31, and a detection signal is output from the reference position detection sensor 33 before the elapse of the predetermined time T1 in the determination of 83.85, At 39,810, the reverse rotation operation of the pulse motor 31 and the measurement operation based on the timer circuit are stopped. Thereafter, at 811, the number of drive pulses set in advance by the tenth lift switch 44 is read, and at 812, the pulse motor 31 is rotated in the forward direction, and the elevating shaft 27 begins to be raised from the reference position P3. In the next step 813, it is determined whether or not the pulse motor 31 has been rotated forward by the set number of drive pulses, and based on the rotation of the pulse motor 31 for a predetermined period, the elevating shaft 27 is moved to the small regulation position P1.
When it reaches, the normal rotation operation of the pulse motor 31 is stopped in S14.

Therefore, in the water supply device of this embodiment, when the power switch is turned on, the elevating shaft 27 for regulating the upward movement position j of the piston valve 8 is returned to the -H reference position P3. It is reset to position P1.

In this state, it is determined in 815 whether the changeover switch 46 is switched to the driving side or the test side, and if it is switched to the driving side, the toilet door switch 47 is turned on in S16. . When the user enters the toilet and turns on the door switch 47 (point M1 in FIG. 4), the timer circuit/11a starts measuring a predetermined time T2 (120 seconds in the embodiment) in S17, and then 818. At 819.820, the on state of the door switch 47 is confirmed, the elapse of the predetermined time T2 is determined, and the changeover switch 46 is confirmed.
vJ 49! The status will be checked.

Then, before the predetermined time T2 elapses, the door switch 4
7 is turned off, the program changes from 818 to 81.
Return to 5. Therefore, until the predetermined time T2 has elapsed after entering the toilet, the elevating shaft 27 is in the small position. fJ rank vlP
1, and in this state, when the piston valve 8 is opened and moved upward based on the operation of the handle 18 to supply water to the toilet bowl, the upward movement of the piston valve 8 is caused by the lifting shaft 27 at the small regulation position P1. The amount of water supplied per unit time is regulated by engagement with the water supply, and the amount of water supplied per unit time is reduced. As described above, the elevator shaft 27 is set at the small regulation position P1 until the restroom is used for a longer time than the predetermined time T2.

On the other hand, when the predetermined time T2 has elapsed after entering the toilet (point M2 in FIG. 4), the measurement operation based on the timer circuit 41a is stopped at 321, and then the 20th tally date switch 45 is activated at S22. The preset number of drive pulses is read, and at 323 the pulse motor 31 is rotated in the forward direction, and the elevating shaft 27 begins to be lifted from the small regulation position P1. At the next step 824.825, it is determined whether the pulse motor 31 has been rotated forward by the set number of driving pulses, and it is also checked whether the door switch 47 is still turned on, and the pulse motor 31 is rotated for a predetermined period of time. When the elevating shaft 27 reaches the large restriction position P2 based on the rotation (point M3 in FIG. 4), the forward rotation of the pulse motor 31 is stopped at 826. Therefore, if water is supplied to the toilet bowl based on the operation of the handle 18 in this state, the piston valve 8
The upward opening movement is regulated by the lifting shaft 27 at the large regulation position P2, and the water supply j per unit time becomes large.

Then, in the next step 827, it is determined whether or not the pulse motor 31 is being rotated by the set number of pulses, and in 828, the door switch 47 is turned off due to leaving the room from 1 to 6, and the pulse Tanabata 31 If the door switch 47 is not rotated by the set number of pulses or the door switch 47 is turned off due to leaving the room (point M4 in FIG. 4), the process returns to S1. Therefore, the operations from Sl to 814 are re-executed, the lifting shaft 27 moves toward the reference white P3 side by the start of reverse rotation of the pulse motor 31 in S3, and the pulse motor 31 is stopped in S9 due to the detection by the sensor 33 in S5. The elevating shaft 27 is stopped at the reference position P3 (point M5 in FIG. 4). Immediately, at 312, the pulse motor 31 starts to rotate normally, and the elevating shaft 27 reaches the small regulation position HPI.
M6 in Fig. 4 when moving to the side and reaching the small regulation position P1.
point), the pulse motor 31 stops in S14, and the lifting shaft 2
7 stops at that position, and the changeover switch 46 is operated or the door switch 47 is turned on when entering the toilet.

As described above, in this water supply device, the lifting shaft 27 for determining the water supply interval is arranged at the -H reference position P3 when the power is turned on and after leaving the toilet of the use table after the elapse of the predetermined time T2, From there, it is moved to the small regulation position P1.

Therefore, since only the minimum amount of water is supplied when using the urine, not only can you save water, but even if the power is accidentally turned off or the water is used many times,
The small and large regulation levels ii'l are always set accurately, and the required amount of water can always be supplied.

In addition, in the water supply device of this embodiment, initialization is performed based on the user leaving the room after the predetermined time T2, but it is also possible to add initialization based on the user leaving the room within the predetermined time T2. good. In this case, the ratio and size regulation positions can be held more accurately. Furthermore, initialization may be performed based on leaving the room before the start of counting the predetermined time T2.

In addition, if the selector switch 46 is switched to the test side in the determination of 815, 70 grams is 81
Steps 6 to 820 are avoided and the process proceeds to S21. Therefore, when switching to the test side, the pulse motor 31 is rotated forward without the elapse of the predetermined time T'2 (120 seconds), and the lifting shaft 2
7 is moved from the small regulation position P1 to the large regulation position P2, the overall operation time can be shortened, and the test can be carried out efficiently.

<Effects of the Invention> As explained in the first part above, in this invention, even if there is a power outage, the N source is cut off carelessly, or it is used many times, the required amount of water can always be supplied in large or small amounts. It has the excellent effect of being able to

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing an embodiment of a water supply device embodying the present invention, Fig. 2 is a block diagram of 11 circuits of the system,
Figures 3a and 31) are flowcharts for explaining the operation, and Figure 4 is a diagram showing the movements of the elevating and lowering members. 1...Flash valve, 8...Piston pulp as a valve body, 27.-XJ2 control member ¥113
Shaft, 31... Pulse motor as a driving member, 41.
... 1st degree CPU as second control means, 47... Door switch as detection means, Pl... Small regulation position, 1] 3... Reference position. Patent applicant: Energy Support Co., Ltd.
Person Patent Attorney On 1) Bosenjii-ebu-Procedure 1 Sho 1 1988 3Jl 8r1 2, Name of invention 4, Agent address 0582 No. 2 Hatazume-cho, Gifu City, 500 Japan
(65)-J, 810 (main) Fax only 058
2 (66) -13396, Contents of amendment All drawings will be amended as shown in the attached sheet.

Claims (1)

[Scope of Claims] 1. In a water supply device including a flush valve (1) and configured to supply water to a toilet bowl, the water supply device is provided with the flush valve (1) and moves with reference to a reference position (P3). A regulating member (27) that regulates the amount of water supplied when the valve body (8) is opened according to the amount of movement, and a driving member (3) for moving the regulating member (27).
1), and detection means (4) for detecting that the user has entered the toilet.
7), and the drive member ( a first control means (41) for controlling the operation of 31); after the user leaves the toilet and when the power is turned on;
a second control means (41) that controls the operation of the drive member (31) so that the regulation member (27) is once placed at the reference position (P3) and then moved to the small regulation position (P1);
) A water supply device equipped with a flush valve.