JP3008658B2 - Cleaning equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cleaning apparatus having a function of automatically changing the flow rate of a jet.

[0002]

2. Description of the Related Art Conventionally, this type of cleaning apparatus has been disclosed in FIG.
(For example, Japanese Patent Publication No. 1-5253)
No. 3).

In FIG. 3, reference numeral 1 denotes a water supply tank from which water is sucked by a pump 2 and passes through a water supply pipe 3 to reach a hot water tank 6 provided with a heater 4 and a temperature detector 5. From the hot water tank 6 to the opening / closing valve 8 through the hot water supply pipe 7. The opening / closing valve 8 acts to open / close (open / close) the flow path at a predetermined cycle, and the washing water sent to the washing nozzle 10 via the opening / closing valve 8 and the water pipe 9 is pulsed from the washing nozzle 10. It is intended to give a comfortable feeling of use to the user, improve the cleaning effect, and at the same time obtain a massage effect.

[0004]

In such a conventional cleaning apparatus, the open / close valve 8 communicates with the flow path at a predetermined cycle in a high-speed pulse so as to obtain a massage effect at the time of cleaning.
By shutting off, pump 2, water supply pipe 3, tank 6,
The water hammer acts on the hot-water supply pipe 7 and the like, which causes problems such as shortening the service life of the apparatus and increasing the noise due to the water hammer sound.

A method of automatically varying the rotation speed of the motor of the pump 2 has also been proposed separately from the above.
In this case, the water hammer effect received by the device is moderated, but it is difficult to make the variable speed cycle of the pump 2 crisp and high speed, and the massage effect is reduced. there were.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and it is a first object of the present invention to provide an excellent cleaning apparatus which enables high-speed fluctuation cleaning and does not have to worry about shortening the life of the apparatus due to a water hammer action. The purpose is.

A second object is to provide a component upstream of the variable flow rate valve (for example, when an abnormally high water pressure acts on the upstream side when power is not supplied to the variable flow rate valve). (A container such as a tank) and the flow rate variable valve itself.

A third object is to realize a fluctuation cleaning apparatus which has a high speed response and low power consumption.

[0009]

According to a first aspect of the present invention, there is provided a cleaning apparatus comprising: a water supply pipe for supplying cleaning water for cleaning a human body part; and a water supply pipe connected to the water supply pipe. A washing nozzle for ejecting washing water, a flow rate variable valve provided upstream of the washing nozzle, which is fully opened when not energized, and secures a flow path equal to or greater than a minimum flow rate when the maximum rated energization is provided, and mode input means for selecting and instructing a washing mode. A controller that outputs a periodic or aperiodic variable power signal to the variable flow rate valve in accordance with an instruction from the mode input means.

According to another aspect of the present invention, there is provided a cleaning apparatus comprising: a water pipe for supplying cleaning water for cleaning a human body; a cleaning nozzle connected to the water pipe for jetting the cleaning water; A normally-open type variable flow valve provided upstream of the washing nozzle and opened when power is not supplied, a mode input means for selecting and instructing a washing mode, and a cycle or an aperiod according to an instruction from the mode input means. And a controller for outputting the change power signal of the above to the variable flow rate valve.

According to another aspect of the present invention, there is provided a cleaning apparatus comprising: a water pipe for supplying cleaning water for cleaning a human body; a cleaning nozzle connected to the water pipe for jetting the cleaning water; A valve body provided upstream of the washing nozzle and having an inflow path and an outflow path; a valve element provided in the valve body to vary a flow rate; and a valve corresponding to a flow rate control unit that receives an inflow pressure of the valve element. A seat, a cylinder portion that guides a pressure balance portion of the valve body that also receives the inflow pressure, an urging unit that urges a flow control unit of the valve body in a direction away from the valve seat, An electromagnetic drive unit that applies a force to the valve body in a direction to bring the valve body closer to the valve seat against an urging force, and a flow rate variable valve provided with a communication passage that communicates the cylinder portion and the outflow passage. Input means for selecting and instructing the cleaning mode , And it constitutes a control unit for outputting a change power signal period or non-periodic in accordance with an instruction from the mode input unit to the variable flow rate valve.

[0012]

According to the cleaning device of the present invention, when a certain fluctuation cleaning mode is instructed and input by the mode input means, a change power signal is output from the controller to the flow rate variable valve, and the flow rate ejected from the cleaning nozzle is equal to the flow rate. It acts so as to be automatically varied according to the power signal of the controller. In addition, the flow rate variable valve is fully opened when de-energized, and a configuration is provided in which a flow path through which a predetermined minimum flow rate or more flows at the time of maximum rated energization is ensured, so that the cleaning water spouted from the cleaning nozzle automatically flows without being interrupted. It is a thing which increases and decreases gradually.

Further, in the cleaning apparatus according to the present invention, the variable flow rate valve is normally open and is in an open state when the power is not supplied, so that the flow rate is reduced only while the power is supplied. Therefore, if an abnormally high water pressure acts on the upstream side when the flow variable valve is not energized, the flow variable valve is normally open. It acts so as to pass through the cleaning nozzle without passing through. That is, at the time of such an abnormality, it acts so as to prevent damage to components (eg, containers such as tanks) upstream of the variable flow rate valve and the variable flow rate valve itself. Also,
Even in the case of performing constant flow cleaning without changing the flow rate, it is possible to eliminate unnecessary power and time required to open the flow rate variable valve by energizing it.

Further, in the cleaning device of the present invention, the inflow pressure of the variable flow rate valve acts on the flow rate control section and the pressure balance section of the valve body so that most of the mutual pressures cancel each other. Acting, the force required by the electromagnetic drive unit for driving the valve element acts so as to require only a small electromagnetic force. Therefore, by inputting a very small variable power signal from the controller to the variable flow rate valve periodically or aperiodically, it is possible to realize a fluctuation cleaning apparatus with high speed response and low power consumption.

[0015]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a sectional view of a main part of a cleaning apparatus according to an embodiment of the present invention. Water is pumped by a pump 2 and passes through a water supply pipe 3 to a tank 6 having a heater 4 and a temperature detector 5.
Leads to. Further, the water reaches the inflow path 12 of the variable flow rate valve 11 from the tank 6 through the hot water supply pipe 7.

The variable flow rate valve 11 has a valve body 14 having an inflow path 12 and an outflow path 13, a valve element 15 provided in the valve body 14 to change the flow rate, and receives the inflow pressure of the valve element 15. A valve seat 17 corresponding to the flow rate control unit 16, a cylinder unit 19 that slides and guides the pressure balance unit 18, which also receives the inflow pressure of the valve element 15, and a flow rate control unit 16 of the valve element 15, Urging means 20 for urging the valve body 15 away from the valve element 17; an electromagnetic drive unit 21 for applying a force in a direction to bring the valve element 15 closer to the valve seat 17 in opposition to the urging force of the urging means 20; And a communication path 22 that communicates with the outflow path 13. Further, the electromagnetic drive unit 21
A fixed iron core 25 and a movable iron core 26 inside a non-magnetic guide cylinder 24 inside the electromagnetic coil 23;
Is provided with a yoke 27 and a yoke plate 28 outside. The valve element 15 and the movable iron core 26 are loosely attached. When any one of the constant flow cleaning mode, the low-speed beat cleaning mode, the high-speed beat cleaning mode, the music rhythm cleaning mode, and the like is selected and instructed by the mode input means 29, the changing power signal according to the instruction of the mode input means 29. Is output from the controller 30 to the electromagnetic drive unit 21 of the flow rate variable valve 11.

Next, the flow rate variable valve 11 will be described in more detail. The force of the electromagnetic drive unit 21 of the flow control valve 11 to attract the movable iron core 26 changes according to the current flowing through the electromagnetic coil 23. That is, the force that pulls the valve body 15 against the force of the urging means 20 changes according to the power signal input to the electromagnetic drive unit 21. That is, the flow rate can be varied by changing the current flowing through the electromagnetic drive unit 21. When the electromagnetic drive unit 21 is not energized, the valve body 15 is urged by the urging means 20 so that the flow control unit 16 of the valve body 15 moves away from the valve seat 17,
The flow path is always opened to form a normally open type valve. further,
The valve element 15 controls the fluid pressure from the inflow path 12 to a flow control unit 16.
And the pressure balance unit 18 receives the pressure and cancels most of the mutual working pressures. Therefore, the force required to drive the valve body 15 is only a small electromagnetic force of the electromagnetic drive unit 21. Also, the feature of this valve is that a suitable amount of water flows without completely closing the flow path even when the valve is fully closed. That is, even when a current flows through the electromagnetic drive unit 21 and the flow control unit 16 of the valve body 15 fully closes the valve seat 17, the pressure balance unit 18 passes through a predetermined gap between the outer diameter and the inner diameter of the cylinder unit 9. , And further flows to the outflow path 13 via the communication path 22.

Next, the operation and operation of the above embodiment will be described. When the high-speed fluctuation cleaning mode as shown in FIG. 2, for example, is input by the mode input unit 29, a change power signal of the input current I is sent from the controller 30 to the electromagnetic drive unit 21 of the flow rate variable valve 11, and the cleaning nozzle 10 The flow rate Q to be spouted changes at a high speed according to the input current I. In this case, if the on-time width of the input pulse current I is made longer and the off-time width is made shorter, the average flow rate of the cleaning water ejected from the cleaning nozzle 10 can be reduced, and vice versa. In addition, the flow rate variable valve 11 is fully opened when not energized, and at the time of maximum rated energization, a flow path through which a predetermined minimum flow rate or more flows through the outer clearance of the pressure balance portion 18 is secured. Automatically increases and decreases without interruption of flow. Since the flow is not interrupted at the time of high-speed fluctuation cleaning, there is no water hammer effect that may cause a problem on the pump 2 or the tank 6 or the like. Therefore, an excellent cleaning apparatus which enables high-speed cleaning and has no fear of shortening the life of the apparatus due to water hammer action can be obtained.

In the cleaning apparatus of this embodiment, the variable flow rate valve 11 is normally open and is in an open state when not energized, and acts so as to reduce the flow rate only during energization. If an abnormally high water pressure acts on the upstream side when the flow variable valve 11 is not energized, the abnormally high pressure will not be applied because the flow variable valve 11 is a normally open type. 11 so as to pass through the cleaning nozzle 10 without passing through. In other words, in the event of such an abnormality, the components upstream of the variable flow valve 11 (for example,
And the flow rate variable valve 11 itself can be prevented from being damaged. Cleaning nozzle 1 to get massage effect
Unless the flow rate variable valve 11 that changes the flow rate ejected from 0 in a pulse manner is provided as close to the cleaning nozzle 10 as possible, the effect is reduced. This is because, for example, when provided upstream of the tank 6, even if the flow rate is changed in a pulsed manner by the variable flow rate valve 11, deformation of the container or the like of the tank 6 causes
When the change becomes dull and the jet flows from the washing nozzle 10, the flow becomes dull and the massage effect is reduced. That is, in a cleaning apparatus for cleaning with a high massage effect, it is necessary to provide the variable flow rate valve 11 near the cleaning nozzle 10. Therefore, it is important that the variable flow rate valve 11 is configured as a normally open type. Further, even in the case of performing constant flow cleaning without changing the flow rate, it is possible to save unnecessary electric power and time to be opened by energizing the flow rate variable valve 11.

Further, the cleaning apparatus of the present embodiment has the above-described configuration, and the inflow pressure of the variable flow rate valve 11 is controlled by the flow control unit 1 of the valve body 15.
6 and the pressure balance section 18, and the mutual acting pressures act so as to cancel each other out. The force required by the electromagnetic drive section 21 for driving the valve element 15 is a small electromagnetic force. Act like so. Therefore, by inputting a very small variable power signal from the controller 30 to the variable flow valve 11 periodically or aperiodically, it is possible to realize high-speed response and low power consumption flow fluctuation cleaning.

[0022]

As described above, the cleaning apparatus of the present invention has the following effects. (1) When the variable flow rate valve is not energized or when the maximum rated energization is performed, the flow path through which the flow rate is equal to or more than a predetermined minimum flow rate is secured when the flow rate variable valve is fully energized. High-speed washing without flow, so that the flow is not interrupted. As a result, an excellent cleaning device can be obtained which does not have to worry about shortening the life of the device due to the water hammer action. (2) Since the variable flow valve is normally open and is in the open state when not energized, and the flow rate is reduced while energized, if the variable flow valve is not energized, the upstream side In the event that an abnormally high water pressure is applied, the abnormally high pressure acts to pass through the variable flow valve and pass through the washing nozzle because the variable flow valve is normally open. That is, it is possible to prevent damage to components upstream of the variable flow rate valve (for example, a container such as a tank) and the variable flow rate valve itself at the time of such an abnormality. In addition, even in the case of performing constant flow cleaning without changing the flow rate, it is possible to save unnecessary power and time that is supplied by energizing and opening the flow rate variable valve. (3) Since the inflow pressure of the variable flow rate valve acts on the flow rate control section and the pressure balance section of the valve body, most of the mutually acting pressure acts so as to cancel each other to drive the valve body. The force required by the electromagnetic drive acts so that only a small electromagnetic force is required. That is, by inputting a very small variable power signal from the controller to the flow rate variable valve periodically or aperiodically, it is possible to realize high-speed response and low power consumption flow fluctuation cleaning.

[Brief description of the drawings]

FIG. 1 is a sectional view of a main part of a cleaning apparatus according to an embodiment of the present invention.

FIG. 2 is an operation characteristic diagram of a variable flow rate valve used in the cleaning device.

FIG. 3 is a sectional view of a conventional cleaning device.

[Explanation of symbols]

 Reference Signs List 9 water pipe 10 washing nozzle 11 variable flow valve 12 inflow path 13 outflow path 14 valve body 15 valve body 16 flow control section 17 valve seat 18 pressure balance section 19 cylinder section 20 urging means 21 electromagnetic drive section 22 communication path 29 mode input Means 30 Controller

──────────────────────────────────────────────────続 き Continuation of the front page (56) References: JP-A-61-2580 (JP, U) JP-B 3-16461 (JP, B2) (58) Fields surveyed (Int. Cl. ⁷ , DB name) E03D 9/08

Claims (3)

(57) [Claims] 1. A water supply pipe for supplying cleaning water for cleaning a human body part, a cleaning nozzle connected to the water supply pipe for jetting the cleaning water, and provided at an upstream of the cleaning nozzle and fully opened when power is not supplied, and a maximum rating. A flow rate variable valve that secures a flow path equal to or greater than a minimum flow rate when energized, a mode input means for selecting and instructing a cleaning mode, and a periodic or aperiodic variable power signal according to an instruction from the mode input means. A cleaning device comprising a controller for outputting to a washing machine. 2. A water supply pipe for supplying cleaning water for cleaning a human body part, a cleaning nozzle connected to the water supply pipe for jetting the cleaning water, and a cleaning nozzle provided upstream of the cleaning nozzle and opened when power is not supplied. An open flow rate variable valve, mode input means for selecting and instructing a cleaning mode, and a controller for outputting a periodic or aperiodic change power signal to the flow rate variable valve in accordance with an instruction from the mode input means. Cleaning equipment. 3. A water supply pipe for supplying cleaning water for cleaning a human body part, a cleaning nozzle connected to the water supply pipe for ejecting the cleaning water, and an inflow path and an outflow path provided upstream of the cleaning nozzle. A valve body, a valve body provided in the valve body for varying the flow rate, a valve seat corresponding to a flow rate control unit for receiving the inflow pressure of the valve body, and a cylinder for guiding a pressure balance unit of the valve body which also receives the inflow pressure. Part, urging means for urging the flow rate control part of the valve body in a direction away from the valve seat, the valve body in a direction to approach the valve body to the valve seat in opposition to the urging force of the urging means. An electromagnetic drive unit for applying a force, a flow rate variable valve provided with a communication passage communicating the cylinder unit with the outflow passage, a mode input unit for selecting and instructing a washing mode, and according to an instruction from the mode input unit. Periodic or aperiodic changing power Cleaning apparatus and a control unit for outputting a signal to said variable flow rate valve.