JP2011094419A - Warm water washing device and toilet equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a warm water washing device which prevents water in a subtank from leaking from a nozzle without using such valves as an electromagnetic valve and a leak-preventing valve when the washing device is not used, and toilet equipment having the warm water washing device. <P>SOLUTION: When a washing switch 12 is pressed, a controller 11 opens a water supply valve 2 and then actuates a pump 6 when a given time t<SB>1</SB>has elapsed from the point of time of opening the water supply valve 2. Subsequently, when a stop switch 13 is pressed, the controller 11 closes the water supply valve 2 and then stops the pump 6 when a given time t<SB>2</SB>has elapsed from the point of time of closing the water supply valve 2. During the given time t<SB>2</SB>, the entire water in the subtank 3 is sent out by the pump 6 to empty the subtank 3. As a result, the subtank 3 applies no water head to a warm water tank 7, so that water does not leak from a nozzle 10 when the warm water washing device is not used. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a warm water cleaning device for spraying warm water from a nozzle toward a toilet user's buttocks to wash the buttocks, and in particular, water in a sub-tank is pumped, heated and supplied to the nozzle. The present invention relates to a hot water cleaning apparatus configured as described above. Moreover, this invention relates to the toilet equipment provided with this warm water washing | cleaning apparatus.

  As a hot water cleaning device, tap water is received and stored in a sub tank open to the atmosphere, water in this sub tank is pumped to the hot water tank, and the hot water in the hot water tank is guided to the nozzle and ejected. (Patent Documents 1 to 3). In Patent Document 1, the sub tank is arranged in parallel with the low tank, and the water supplied excessively in the sub tank is configured to overflow into the low tank.

  FIG. 7 of Patent Document 2 shows a solenoid valve on the downstream side of a pump in a hot water cleaning apparatus configured to guide water in a sub tank arranged in parallel to a low tank to a nozzle through a pump, a hot water tank, and a vacuum breaker. And the solenoid valve is closed when the hot water washing apparatus is not used, and the water in the sub tank is prevented from leaking from the nozzle.

  In FIG. 4 and 0032 paragraph of Patent Document 2, a sub-tank is installed below the low tank, and a leakage prevention valve is provided in a pipe line between the hot water tank and the nozzle so that the water in the sub-tank is discharged from the nozzle when not in use. A hot water cleaning device that prevents leakage is described.

  In the lower left column on pages 3 to 11 of Patent Document 3, it is described that when the water in the sub tank is expected to be frozen, the water in the sub tank is drained. Preventing water leakage is performed by an electromagnetic valve provided in front of the nozzle.

JP-B-2-42978 JP-A-7-189318 JP-A-2-282533

  In the hot water cleaning apparatus configured to feed water in the sub tank by a pump and eject hot water heated in the hot water tank or the like from the nozzle, as in Patent Document 1, the sub tank is provided at a higher position than the nozzle. Even when the hot water cleaning device is not used, the water in the sub tank gradually leaks from the nozzle due to the head difference. In Patent Documents 2 and 3, a leak called a potter leak is prevented by an electromagnetic valve or a leakage prevention valve.

  The present invention includes a warm water cleaning device that prevents the water in the sub tank from leaking from the nozzle when not in use, and the warm water cleaning device, without needing to use such a solenoid valve or a leakage prevention valve. The purpose is to provide toilet facilities.

  The hot water cleaning apparatus of the present invention (Claim 1) includes a sub tank for storing water, a pump for feeding water from the sub tank, a heater for heating water from the pump, and hot water from the heater. In the hot water cleaning apparatus, the sub tank is provided with a nozzle that ejects the nozzle and a controller that controls the pump based on a cleaning start signal and a cleaning stop signal from the switch, and the sub tank is installed higher than the nozzle. A water supply valve for supplying water is provided, and the controller closes the water supply valve when a washing stop signal is given, and then stops the pump after a predetermined time has elapsed. It is.

  According to a second aspect of the present invention, there is provided the hot water cleaning apparatus according to the first aspect, wherein the predetermined time is equal to or longer than a time required for discharging the entire amount of water in the sub tank.

  According to a third aspect of the present invention, there is provided the hot water cleaning apparatus according to the first or second aspect, wherein the controller opens the water supply valve when the cleaning start signal is given, and then operates the pump after a predetermined time has elapsed. It is a feature. This prescribed time is preferably about 2 to 3 seconds.

  According to a fourth aspect of the present invention, there is provided the hot water cleaning apparatus according to the third aspect, wherein the pumped water amount per unit time is smaller than the passing water amount per unit time of the water supply valve.

  A toilet equipment of the present invention (Claim 5) is provided with the hot water cleaning device according to any one of Claims 1 to 4.

  The toilet equipment according to claim 6 is the toilet equipment according to claim 5, wherein the toilet equipment includes a toilet and a low tank for supplying toilet bowl washing water to the toilet, and overflow water from the sub tank is contained in the low tank. It is characterized by being configured to be introduced.

  In the hot water cleaning apparatus and toilet equipment of the present invention, water in the sub tank is fed by a pump, heated by a warmer, and ejected from a nozzle. When the washing stop signal is given to the controller, the controller closes the water supply valve, and then stops the pump after a predetermined time has elapsed. As a result, all or most of the water in the sub-tank is discharged, and subsequent leakage from the nozzle is prevented.

  In the present invention, it is possible to prevent water leakage from the nozzle during the non-cleaning operation without providing this leak prevention valve in the pipe line, and to reduce the cost.

  As described in claim 2, by discharging the entire amount of water in the sub tank, leakage of water from the nozzle when the hot water cleaning device is not used is prevented.

  As in claims 3 and 4, at the start of cleaning, the water supply valve is first opened, the water is stored in the sub-tank, and the pump is operated to prevent the pump from biting air. The squirting flow becomes stable.

  According to the fourth aspect, the sub tank is not emptied during operation of the pump, and the jet flow from the nozzle is stabilized.

  According to the sixth aspect, the overflow water of the sub tank can be led to the low tank and used as toilet bowl washing water.

It is a water supply system figure of the warm water washing apparatus which concerns on embodiment. It is a timing chart which shows the action | operation of the warm water washing | cleaning apparatus of FIG. It is a perspective view of toilet bowl equipment concerning an embodiment.

  Hereinafter, embodiments will be described with reference to the drawings.

  As shown in FIG. 1, in the hot water cleaning apparatus according to this embodiment, water from the water supply pipe 1 can be introduced into the sub tank 3 via a water supply valve 2 made of an electromagnetic valve. The sub tank 3 is provided with an overflow portion 4. The upper part of the sub tank 3 is open to the atmosphere. The end of the water supply pipe 1 is located above the overflow water level WL in the sub tank 3, and the water supply pipe 1 and the water in the sub tank 3 are completely cut off. The water in the sub tank 3 can be introduced into the hot water tank 7 through a pipe 5 and a pump 6 connected to the lower part of the sub tank 3. The hot water tank 7 is provided with a heater 8 for heating water and a thermistor (not shown) for detecting the water temperature, and the heater 8 is energized so that the water temperature in the hot water tank 7 becomes a predetermined temperature. It is controlled by a heater control circuit (not shown).

  Hot water in the hot water tank 7 is supplied to the cleaning nozzle 10 through a pipe 9 made of a hose or the like. The cleaning nozzle 10 includes a cylinder portion 10a and a nozzle portion 10b. When hot water is supplied to the cylinder portion 10a, the nozzle portion 10b moves forward, and the hot water is directed from the tip toward the buttocks of the toilet seat seater. Erupts. The nozzle portion 10b may be configured to move forward and backward by a motor or the like.

  The water supply valve 2 and the pump 6 are controlled by a controller 11. Signals are input to the controller 11 from a cleaning switch 12 for starting cleaning and a stop switch 13 for stopping cleaning. These switches 12 and 13 are installed on a remote controller or the like.

  FIG. 3 is a perspective view of a toilet facility equipped with the hot water cleaning device.

  The front part of the toilet bowl 20 is a toilet bowl 21. A low tank cover 22 is installed on the upper surface of the rear portion of the toilet bowl 20, and a toilet seat 23 and a toilet lid 24 are attached to the front portion of the low tank cover 22 so as to be rotatable in the vertical direction.

  A row tank 25 is installed in the row tank cover 22, and a cleaning lever handle 26 for supplying water in the row tank 25 to the toilet bowl 21 is provided on the side surface of the row tank cover 22. The low tank 25 is provided with a ball tap (not shown) for storing water uniformly.

  The sub tank 3 is installed on the upper side of the low tank 25, and the water from the overflow portion 4 is configured to fall into the low tank 25.

  A water supply pipe 27 protrudes from the wall surface of the toilet room, and a stop cock 28 is attached to the tip of the water supply pipe 27. The water supply pipe 1 (not shown in FIG. 2) in the raw tank cover 22 is connected to the water stop cock 28 via an indoor pipe 29 made of a flexible hose or the like.

  The pipe 1 is branched in the middle, one is connected to the water supply valve 2 and the other is connected to the ball tap of the low tank 25.

  As shown in FIG. 3, the pipe 5 extends downward from the sub tank 3, and water can be introduced into the lower hot water tank 7 in the low tank cover 22 via the pump 6. The washing nozzle 10 is installed in the vicinity of the center of the lower front edge in the low tank 22 in the toilet width direction. When hot water is supplied to the cleaning nozzle 10 via the hose-like pipe 9, the nozzle portion 10b projects forward from the low tank 22, and jets warm water obliquely upward from its front end.

The operation of the hot water cleaning apparatus and toilet equipment configured as described above will be described with reference to FIG. When the washing switch 12 is pressed, a washing signal is given to the controller 11. The controller 11 first opens the water supply valve 2 and then operates the pump 6 after a predetermined time t ₁ has elapsed. Since a sufficient amount of water is stored in the sub tank 3 during the predetermined time t ₁ , air is not caught in the pump 6 when the pump 6 is started, and the water flow from the nozzle 10 is stabilized. It becomes. This t ₁ is preferably 2 to 3 seconds.

Thereafter, when the stop switch 13 is pressed and a cleaning stop signal is given, the controller 11 first closes the water supply valve 2 and then stops the pump 6 after a predetermined time t ₂ has elapsed. Water in the sub tank 3 during a predetermined time t ₂ is sent by all pump 6, the sub-tank 3 is empty. Therefore, no water head pressure is applied from the sub tank 3 to the hot water tank 7, and water does not leak from the nozzle 10 when the hot water washing apparatus is not used. This t2 is preferably about ₂ to 3 seconds.

  In the present invention, it is preferable that the amount of water supplied per unit time of the pump 6 is smaller than the amount of passing water per unit time of the water supply valve 2 so that the sub tank 3 is not emptied during the cleaning operation. The overflow water when the water level in the sub tank 3 rises due to the water introduced from the water supply valve 2 is introduced into the low tank 25 and is effectively used for the next toilet flushing.

  The above embodiment is an example of the present invention, and the present invention is not limited to this. For example, an instantaneous heating type heater may be provided instead of the hot water tank.

2 Water supply valve 3 Sub tank 4 Overflow part 6 Pump 7 Warm water tank 10 Washing nozzle 20 Toilet bowl 21 Toilet bowl 22 Low tank cover 25 Low tank 26 Lever handle 28 Stop cock

Claims (6)

A sub-tank for storing water supply;
A pump for delivering water from the sub-tank;
A heater for heating water from the pump;
A nozzle for ejecting hot water from the heater;
A controller for controlling the pump based on a cleaning start signal and a cleaning stop signal from the switch;
In the hot water cleaning apparatus in which the sub tank is installed higher than the nozzle,
A water supply valve is provided to supply water to the sub tank.
The controller closes the water supply valve when a cleaning stop signal is given, and then stops the pump after a predetermined time has elapsed.   2. The warm water cleaning apparatus according to claim 1, wherein the predetermined time is equal to or longer than a time required to discharge all the water in the sub tank.   3. The hot water cleaning apparatus according to claim 1, wherein the controller opens the water supply valve when a cleaning start signal is given, and then operates the pump after a predetermined time has elapsed.   4. The hot water cleaning apparatus according to claim 3, wherein the amount of water supplied per unit time of the pump is smaller than the amount of water passing per unit time of the water supply valve.   Toilet equipment comprising the hot water cleaning device according to any one of claims 1 to 4. In claim 5, the toilet equipment comprises a toilet and a low tank for supplying toilet bowl wash water to the toilet,
The toilet equipment is configured such that overflow water from the sub tank is introduced into the low tank.

Images