JP3555236B2 - Local cleaning equipment - Google Patents

Description

[0001]
[Industrial applications]
The present invention relates to a local cleaning device that allows a visitor or a purchaser in an exhibition hall, a showroom, or the like to understand a jet state of cleaning water without sitting down.
[0002]
[Prior art]
In recent years, various toilet accessories have been widely used in order to realize a more comfortable toilet by adding a sanitary function and / or an electrical function to the toilet, and a local cleaning device is one of these toilet accessories. .
[0003]
To briefly explain how to use the local cleaning device, a user usually sits on a toilet seat, and then presses a cleaning switch, whereby washing water at an appropriate temperature is sprayed on the user's local area to clean the local area. Can be.
[0004]
[Problems to be solved by the invention]
However, the above-described local cleaning device still has the following problems to be solved from the viewpoint of how to use the local cleaning device.
[0005]
In other words, when a demonstration of how to use the local cleaning device is performed in an exhibition hall, a showroom, or a general household where the local cleaning device is purchased, the seat switch is simulated to be turned on. Even at the minimum level, the flushing water from the nozzle is considerably strong, and the flushing water will jump out of the toilet bowl as it is. Therefore, conventionally, at the same time as the operation of turning on the washing switch, a demonstration is performed by covering the water discharge with a hand so that the water discharge does not jump out of the toilet, but such a work is troublesome. Also, in this case, the strength of the washing water that hits the hand has given a fear to a person who uses the local cleaning device for the first time.
[0006]
An object of the present invention is to provide a local cleaning device that can solve the above-described problems.
[0007]
[Means for Solving the Problems]
The present invention is directed to a local cleaning device that adjusts a flow rate of tap water supplied from a water supply source by a flow rate adjusting means and discharges water from a nozzle toward a human body local part. When the flushing switch is turned on while the seat is not seated, the flushing level is reduced, and the flushing water is spouted from the nozzle at a flow rate that does not jump out of the toilet bowl surface. The present invention relates to a characteristic local cleaning device.
[0008]
【Example】
Hereinafter, a local cleaning apparatus according to the present invention will be described in detail with reference to an embodiment shown in the accompanying drawings.
[0009]
As shown in FIG. 1, a toilet accessory device assembly 10 including a local cleaning device according to the present invention is mounted on a toilet 11.
[0010]
As shown in FIGS. 1 to 3, the toilet attachment device assembly 10 includes a housing 12 located behind a toilet 11, and a pair of horizontal posts 13, 13 and a horizontal hinge shaft provided on a front inclined surface of the housing 12. A toilet seat 15 and a toilet lid 16 are pivotally connected to be vertically movable via the base 14.
[0011]
As shown in FIGS. 4 and 5, the toilet accessory assembly 10 has a hydraulic telescopic nozzle 17 and a heat exchanger for generating hot water to be supplied to the hydraulic telescopic nozzle 17 in the housing 12. And a deodorizer 19 built therein.
[0012]
The housing 12 includes a lower housing 20 and an upper housing 21, which can be formed of an impact-resistant resin such as an ABS resin. The lower housing 20 and the upper housing 21 are joined to each other by screws (not shown) or the like to form a strong and integrated housing 12.
[0013]
The housing 12 is mounted on the rear upper surface of the bowl portion 23 of the toilet 11 together with the cistern 24.
[0014]
Next, the configuration inside the housing 12 will be described. As shown in FIGS. 4 and 5, a hydraulic telescopic nozzle 17 constituting a main part of the local cleaning device A is mounted on the lower housing 20 at the center. A hot water tank 18 which constitutes another main part of the local cleaning device A is mounted on the right side, and a deodorizing device 19 is mounted on the left side.
[0015]
As shown in FIG. 6, the hydraulic telescopic nozzle 17 includes a cylinder 31 having a tubular plunger 30 and a return spring 51 therein, and a nozzle head 32 attached to the tip of the plunger 30. Hot water is supplied from a hot water tank 18 to a water inlet 33 provided at the rear of the plunger 30 via a water supply pipe 34.
[0016]
Hereinafter, the configuration of the hydraulic telescopic nozzle 17 will be described in detail with reference to FIGS.
[0017]
As shown in FIG. 6, a circular opening 41 is provided in the side wall 40 of the cylinder 31, and the tip of the plunger 30 is slidably guided by the circular opening 41. A nozzle head 32 is mounted on the tip of the plunger 30.
[0018]
As is apparent from FIG. 7, the upper portion of the plunger 30 is chamfered over substantially the entire length thereof, and a water outlet 42 is formed between the circular opening 41 of the end wall 40 and the outer periphery of the plunger 30 throughout the entire stroke of the plunger 30. It has become so. Therefore, while the pressurized water is being supplied to the water inlet 33, the water flowing into the spring chamber 43 is jetted from the outlet 42 to clean the nozzle head 32.
[0019]
As shown in FIG. 8, a cover 44 having a semicircular cross section protrudes from the end wall 40 of the cylinder 31, directs the water jetted from the water outlet 42 to flow along the nozzle head 32, and moves the nozzle head 32. We are trying to wash effectively.
[0020]
As shown in FIG. 6, a packing 45 is arranged inside the end wall 40 of the cylinder 31. When the plunger 30 extends to the full stroke end as shown by the phantom line in FIG. 6, the shoulder 46 of the plunger 30 abuts on the packing 45 to block the flow from the water outlet 42. As shown in FIG. 7, a spline 47 is formed on the side of the plunger 30, and the spline 47 is slidably engaged with a notch 48 of the end wall 40. By this spline fitting, the plunger 30 is held at a predetermined angular position during the expansion and contraction movement.
[0021]
The passage 49 of the plunger 30 communicates with the internal passage of the nozzle head 32 via an orifice (restriction) 50 having a reduced diameter. When pressurized water is supplied to the water inlet 33 by the orifice 50, the water pressure acting on the plunger 30 becomes higher than the atmospheric pressure in the spring chamber 43, and the plunger 30 is stroked against the action of the return spring 51.
[0022]
In the present embodiment, the nozzle head 32 is configured to spray a foam spray. The nozzle head 32 may be formed, for example, in a cylindrical shape, and includes a radial passage 52 communicating with the orifice 50, a venturi passage 53 that is a reduced-diameter axial passage having a venturi action, and a jet port 54. Have. An air intake port 55 is opened in the venturi passage 53 so that bubbles are introduced into a water flow flowing in the venturi passage 53 by a Venturi effect.
[0023]
On the other hand, as shown in FIGS. 1, 4 and 5, the hot water tank 18 is provided with a water supply pipe 60 composed of a flexible hose branched from a water supply main pipe 99 supplying water to the cistern 24 via a branch portion 100, and inside the housing 12. Tap water is supplied via a water supply pipe 61, a valve unit 62, and a water supply pipe 63 that extend the water supply. As shown in FIG. 9, the valve unit 62 includes a pressure regulating valve 64, a solenoid operated shutoff valve 65, a flow control valve 66, and a vacuum breaker 67. The shutoff valve 65 includes a power supply circuit and a microcomputer. It is opened and closed by the control unit 68 having
[0024]
Hereinafter, the configuration of the valve unit 62 will be described in detail with reference to FIG.
[0025]
As shown in FIG. 9, the valve body of the valve unit 62 is configured by assembling first, second, and third manifold blocks 69, 70, and 71. An internal flow path R extending from the provided water inlet 72 to the water outlet 73 provided in the third manifold block 71 is formed.
[0026]
In the above configuration, the water inlet 72 provided in the first manifold block 69 is connected to and connected to the water supply pipe 61 via the water supply socket 74.
[0027]
A check valve 75 for preventing the water on the toilet side from flowing back to the water supply main pipe 61 is provided in the internal flow path R at the junction between the first manifold block 69 and the second manifold block 70. ing.
[0028]
A pressure regulating valve 64 for absorbing fluctuations in water supply pressure in an area where the toilet device is installed is provided in an internal flow path R provided on the downstream side of the check valve 75 and in the second manifold block 70. Have been.
[0029]
A shutoff valve 65 composed of a pilot diaphragm valve is disposed in an internal flow path R provided in the third manifold block 70 on the downstream side of the pressure regulating valve 64, and the shutoff valve 65 is controlled by a solenoid 65a. It opens and closes by being driven, and can reliably discharge and stop the cleaning water injected through the hot water tank 18 and the hydraulic expansion / contraction nozzle 17.
[0030]
A flow control valve 66 driven by an electric motor M including a stepping motor is provided in an internal flow path R provided in the third manifold block 70 on the downstream side of the shutoff valve 65.
[0031]
The flow control valve 66 is composed of a cylindrical valve element 66a attached to the output shaft of the electric motor M. The cylindrical valve element 66a has a valve hole 66b formed of a deformed elongated hole extending in the circumferential direction on its peripheral surface. And the variable amount of alignment between the valve hole 66b and the inflow opening of the internal flow path R downstream of the valve hole 66b is linked to the rotation of the electric motor M so that The amount of supplied water is controlled steplessly.
[0032]
Further, a vacuum breaker 67 is communicatively connected to a water outlet 73 provided in the third manifold block 70, and overflowed water is discharged into the toilet bowl 11 through an overflow pipe 76.
[0033]
The configuration of the above valve unit 62 is conceptually shown in a block diagram in FIG.
[0034]
As shown in FIGS. 4 and 5, a heat exchanger 81 containing an electric heater 80 controlled by the control unit 68 is arranged in the hot water tank 18 so as to heat water in the hot water tank 18. It has become.
[0035]
FIG. 10 is a block diagram conceptually showing the configuration of the hot water tank 18. In the heat exchanger 81, in addition to the heater 80, a bimetal 82 for preventing an excessive rise in temperature of the heater and a temperature fuse are provided. 83, a thermistor 84 for temperature control, a float switch 85 for fixed-quantity supply, and a safety valve 86 are connected.
[0036]
4 and 5, the deodorizing device 19 is also placed in the housing 12 and on the lower housing 20, as shown in FIGS. The inside of the bowl portion 23 is ventilated and deodorized.
[0037]
As shown in FIGS. 4 and 5, in the present embodiment, the deodorizing device 19 is disposed substantially at the intake port 88 provided on the substrate 87 of the lower housing 20 and on the left side of the substrate 87 of the lower housing 20. A deodorizing / ventilating fan unit 89; an odor suction duct 90 for connecting the air inlet 88 and the deodorizing / ventilating fan unit 89 in an airtight state; and clean air after removing odor from the deodorizing / ventilating fan unit 89 to the outside. And a clean air discharge duct 91 for discharging air to the outside.
[0038]
In this embodiment, as shown in FIG. 4, the toilet accessory device assembly 10 can easily and freely adjust the lower housing 20 in the front-rear direction by the lever-operated toilet fixture T. It can be attached to
[0039]
According to the present invention, in the toilet accessory device assembly 10 having the above-described configuration, when the local cleaning device A is not seated, in addition to the normal operation mode, as shown in FIG. When the flush switch SW is pressed, a lecture mode for flushing flush water by outputting a signal to the flow control valve 66 to limit the flow rate at which water discharged from the hydraulic telescopic nozzle 17 does not jump out of the toilet bowl surface is provided. It is characterized by.
[0040]
Hereinafter, the operation mode of the local cleaning device A will be specifically described with reference to a timing chart shown in FIG.
[0041]
(Normal operation mode)
First, the normal operation mode of the local cleaning device A will be described. The operation mode is based on a control signal from the control unit 68, as shown by a solid line in FIG. 66, the valve opening degree is adjusted.
[0042]
(1) When the power is turned on, the electric motor M for driving the flow rate control valve 66 is supplied with a larger number of pulses than the pulse number corresponding to the maximum water pressure level 8 to close the motor M, and the initial origin is corrected.
[0043]
(2) When the user is seated on the toilet seat 15, based on the output from the infrared light emitting / receiving sensor S (see FIGS. 2, 4, and 5) disposed inside the sensor window Sa as the human body detecting means. Thus, the control unit 68 enters the normal operation mode.
[0044]
(3) When the user turns on the washing switch SW after sitting down, the solenoid 65a is driven to open the shutoff valve 65, and the valve opening is required to set the valve opening to a water level slightly higher than the water level 4. A number of pulses in the opening direction are provided to the electric motor M. As a result, the flow control valve 66 is opened to a valve opening capable of securing a sufficient amount of water for extending the hydraulic telescopic nozzle, and the nozzle is reliably extended into the toilet 11 as shown in FIG. it can.
[0045]
{Circle around (4)} Thereafter, the number of pulses in the closing direction necessary for setting the valve opening to the water level 1 is applied to the electric motor M. This is the case where the valve opening is immediately brought to the water level (water level 5 in this embodiment) used by the previous user after the extension of the hydraulic telescopic nozzle 17 in step (2). This is because washing water with a strong stimulus is suddenly jetted to a local part of the human body, which may cause discomfort to the user.
[0046]
{Circle around (5)} Next, the electric motor M is supplied with the necessary number of pulses in the opening direction to bring the valve opening to the water level 5. Here, the water level 5 is the water level used last by the previous user, and is the level read from the memory of the control unit 68.
[0047]
(6) Thereafter, the user operates the water pressure adjustment knob 95 (see FIG. 1) on the remote controller P to appropriately select his / her favorite water pressure level (in this embodiment, the water pressure levels 1 to 8). Local parts can be washed.
[0048]
{Circle around (7)} After the local cleaning, when the user turns off the cleaning switch SW, the normal use mode is released, a pulse in a predetermined closing direction is given to the electric motor M, and the home return is performed.
[0049]
In the present embodiment, in addition to the operation of turning off the cleaning switch SW, when the user turns off the seating switch by leaving the toilet seat 15, when the cleaning time has passed the set continuous cleaning time, Even when the abnormal temperature detection signal from the thermistor 84 is output to the control unit 68, the normal use mode is canceled, the electric motor M rotates to the closed side, and the origin is returned.
[0050]
When the motor reaches the origin, a certain number of pulses in the closing direction are further supplied to the electric motor M to perform the origin correction.
[0051]
(8) The electric motor M of the flow control valve 66 waits at the origin position until the next user sits down.
[0052]
(9) Then, when the next user sits on the toilet seat 15 and then turns on the cleaning switch SW, the above steps (1) to (6) are repeated.
[0053]
On the other hand, when the washing switch SW is turned on in a non-seat state, washing water is jetted in the following lecture mode.
[0054]
(Lecture mode)
First, the lecture mode is characterized in that, based on a control signal from the control unit 68, opening and closing of the shutoff valve 65 and adjustment of the valve opening of the flow control valve 66 are performed as shown by the dotted line in FIG. Things.
[0055]
(1) When the power is turned on, the electric motor M for driving the flow rate control valve 66 is supplied with a larger number of pulses than the pulse number corresponding to the maximum water pressure level 8 to close the motor M, and the initial origin is corrected.
[0056]
(2) When the user does not sit on the toilet seat 15, the control unit 68 selects the lecture mode.
[0057]
{Circle around (3)} When the user turns on the cleaning switch SW in a non-seat state, the solenoid 65a is driven to open the shutoff valve 65 and the valve opening is raised slightly above the water level 4 as in the normal cleaning operation. Are supplied to the electric motor M in the opening direction necessary for setting the level of the electric motor M. As a result, the flow control valve 66 is opened to a valve opening capable of securing a sufficient amount of water for extending the hydraulic telescopic nozzle, and the nozzle is reliably extended into the toilet 11 as shown in FIG. it can.
[0058]
(4) Thereafter, similarly to the normal operation mode, a pulse in the closing direction is given to the electric motor M. However, in this lecture mode, the necessary number of pulses are provided to set the valve opening to the lecture level which is a water level lower than the water level 1 which is the minimum water level in the normal cleaning operation.
[0059]
The water level at this lecture level is set so that the water discharged from the hydraulic telescopic nozzle 17 does not jump out of the toilet bowl surface.
[0060]
Therefore, when a demonstration is performed for a person using the local cleaning device A in an exhibition hall, a showroom, or a purchased general household, water discharged from the hydraulic telescopic nozzle 17 jumps out of the toilet bowl surface, and the viewer Can be prevented from splashing water on clothes and the like, and from having a fear of being used for the first time.
[0061]
(5) After the demonstration is completed, when the user turns off the cleaning switch SW, the lecture mode is released, and the electric motor M rotates to the closing side and returns to the original position.
[0062]
Also in this lecture mode, in addition to the operation of turning off the cleaning switch SW, when the user is seated on the toilet seat, when the cleaning water ejection time exceeds the set continuous demonstration time, or when abnormal temperature detection from the hot water thermistor 84 is performed. When a signal is output to the control unit 68 or the like, the normal use mode is released, the electric motor M rotates to the closed side, and returns to the origin.
[0063]
When the motor reaches the origin, the electric motor M is further rotated to the closed side by a certain number of pulses to perform the origin correction.
[0064]
(6) The electric motor M of the flow control valve 66 waits at the home position until the next user sits down.
[0065]
{Circle around (7)} For the next demonstration, when the washing switch SW is turned on in a non-seat state, the washing water is jetted from the hydraulic telescopic nozzle 17 into the toilet 11 in the above-described lecture mode.
[0066]
On the other hand, when the user sits on the toilet seat 15 and thereafter turns on the cleaning switch SW, the cleaning water is jetted from the hydraulic telescopic nozzle 17 toward the local area according to the normal cleaning mode.
[0067]
As described above, the present invention has been described with reference to the illustrated embodiments. However, the present invention is not limited to the configurations described in the embodiments, and other embodiments and Modifications are also included, and, for example, the following modifications are also included in the present invention.
[0068]
That is, in the illustrated embodiment, the local cleaning device A uses the hydraulic telescopic nozzle 17, but an electric telescopic nozzle may be used. In this case, the nozzle is expanded and contracted by hydraulic pressure in the normal operation mode and the lecture mode. Step can be omitted, and the control can be simplified.
[0069]
Further, as the flow rate adjusting means, in addition to the flow rate adjusting means described in detail in the above embodiment, a means for adjusting the flow rate by varying the output using a pump may be used.
[0070]
【The invention's effect】
In the present invention, the human body detecting means for detecting the presence or absence of a user on the toilet seat, and when the washing switch is turned on when the human body detecting means does not detect the user on the toilet seat, the nozzle is extended into the toilet bowl portion. In addition, a control unit is provided for outputting to the flow rate adjusting means a signal for limiting the discharge of the wash water from the nozzle to a flow rate that does not protrude from the bowl surface of the toilet bowl, thereby causing the nozzle to discharge water.
[0071]
Therefore, when demonstrating to a person who uses a local cleaning device in an exhibition hall, a showroom, or a purchased general home, water discharged from the hydraulic telescopic nozzle jumps out of the toilet bowl surface, so that visitors, etc. It can surely prevent people from splashing clothes or using them for the first time.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an entire toilet accessory assembly mounted on a toilet provided with a local cleaning device A according to the present invention.
FIG. 2 is a plan view of the toilet accessory device assembly.
FIG. 3 is a side view of the toilet accessory device assembly.
FIG. 4 is a sectional front view of the toilet accessory assembly.
FIG. 5 is a plan view of the toilet accessory assembly with the upper housing removed.
FIG. 6 is a sectional side view of the local cleaning device.
FIG. 7 is a cross-sectional view taken along line II of FIG. 6;
8 is a transverse sectional view taken along line II-II of FIG.
FIG. 9 is a cross-sectional view of a valve unit including the flow control valve and the like.
FIG. 10 is a block diagram of a configuration of a local cleaning device.
FIG. 11 is a timing chart illustrating an operation state of the local cleaning device.
[Explanation of symbols]
A Local cleaning device SW Cleaning switch 10 Toilet accessory device assembly 11 Toilet bowl 15 Toilet seat 17 Hydraulic telescopic nozzle 23 Bowl part 66 Flow control valve 68 Control part

Claims (1)

In a local cleaning device that adjusts the flow rate of tap water supplied from a water supply source by a flow rate adjusting unit and discharges water from a nozzle toward a human body part,
When the washing switch is turned on after seating, water is discharged at a predetermined water level from the nozzle.On the other hand, when the washing switch is turned on when the seat is not seated, the water level is reduced and the nozzle is ejected from the toilet bowl surface. A local cleaning apparatus characterized in that cleaning water is discharged from a nozzle at an uncontrolled flow rate .

Images