JP2535067Y2 - Local cleaning equipment - Google Patents

Description

[Detailed description of the invention] [Industrial application field] In the present invention, a hot water tank is directly connected to a tap water, and hot water in the hot water tank is spouted from the anal washing nozzle or bidet washing nozzle toward a human body part by the pressure of the tap water. The present invention relates to a local cleaning device.

[Prior Art] The applicant of the present invention has previously devised a water-directly-connected local cleaning device shown in FIGS.

FIG. 1 is a plan view of a conventional local cleaning apparatus. An apparatus main body 1 is mounted and supported on a rear portion of a toilet bowl 2 and rotatably supports a toilet seat 3 mounted on the toilet bowl 2. An operation unit 4 is provided. Reference numeral 5 denotes a branch faucet inserted into a water supply pipe 7 for supplying tap water to the raw tank 6 and communicates with a connection port 9 of the main body 1 through a connection pipe 8.

FIG. 2 is a waterway diagram. The branch faucet 5 has a built-in strainer 10 and a check valve 11 and is connected to a connection port 9 via a connecting pipe 8. Reference numeral 12 denotes a hot water tank having a built-in heater 13 for heating, a solenoid valve 14 for opening and closing a water passage in a pipe connecting the connection port 9 and the hot water tank 12, and a pressure reduction for reducing the pressure of tap water supplied to the hot water tank 12 to a predetermined pressure. The valve 15 is inserted. Further, downstream of the hot water tank 12, an anal cleaning nozzle 17 and a bidet cleaning nozzle 18 are connected to the end of a pipe branched via a flow rate control switching valve 16, and the hot water in the hot water tank 12 is supplied by the pressure of the tap water. It is jetted from 17 or bidet cleaning nozzle 18 toward the human body part. Reference numerals 19 and 20 denote flow sensors interposed in pipes that communicate the flow control switching valve 16, the anal washing nozzle 17 and the bidet washing nozzle 18, respectively, and output a detection signal every time the built-in impeller makes one revolution to flow. Is given.

FIG. 3 is a detailed view of the water flow control switching valve 16 in FIG. 2. Reference numeral 21 denotes a casing in which a spool 22 is slidably accommodated in an axial direction, and an input port 23 is provided on an axial side surface and on a circumferential side surface. The output port 24 for anal irrigation and the output port 25 for bidet irrigation are drilled by shifting the position
23 is a hot water tank 12, each output port 24 and 25 is a flow sensor
Anal wash nozzle 17 and bidet wash nozzle via 19 and 20
Each is connected to 18. The spool 22 is screwed into a thread groove 26 formed in the opening of the casing 21 so that the spool 22 can move in the axial direction.
Between the constricted portion 27 recessed between
By moving the spool 22 to the left and right, the constricted portion 27 is located between the two output ports 24 and 25 to close the two output ports 24 and 25. The anal washing position in which the anal washing output port 24 is opened opposite the anal washing output port 24 and the other bidet washing output port 25 is closed, and the open / close state of each of the output ports 24 and 25 is as follows. The opposite bidet washing position is formed. 29 is a motor for moving the spool 22 in the axial direction. The spool 29 is mounted on a gear 31 attached to the output shaft of a speed reducer 30 connected to the motor 29.
The gear 32 attached to the extension end of the
Drives the spool 22 in the axial direction. Reference numeral 33 denotes a micro switch corresponding to a spool position detecting means for detecting the position of the spool 22. First and second protruding portions 34 and 35 protruding in the circumferential direction of the extending portion of the spool 22 are connected to the micro switch 33. In response, when the micro switch 33 is pushed by the first protrusion 34 and is in the ON state, the micro switch is in the anal washing position where the anal washing output port 24 is open and the bidet washing output port 25 is closed. When 33 is pushed by the second projecting portion 35 and is in the ON state, the bidet washing output port 25 is in the bidet washing position where the valve is open and the anal washing output port 24 is in the valve closing state. In the off state where the push button is not pushed by the first or second projections 34 and 35, the push button of the micro switch 33 is located between the projections 34 and 35 to close both output ports 24 and 25. Neutral position or push button of micro switch 33 Is located on the side of the first protrusion 34, and the opening state of the output port 24 for anal washing exceeds the limit position, or the push button of the microswitch 33 is located on the side of the second protrusion 35. It is the bidet cleaning limit position where the valve opening state of the bidet cleaning output port 25 exceeds the limit position.

FIG. 4 shows a block diagram of a conventional control system. An operation unit is provided on the input side of a microcomputer 36 corresponding to control means.
4. The flow sensors 19 and 20 and the micro switch 33 are connected to the output side, and the operation unit 4 and the motor 29 are connected respectively.
The operation unit 4 includes a plurality of anal washing switch 37- ₁ can be varied in several stages cleaning intensity of the anal and bidet, 37- _2, 37- _3, 37- ₄ and bidet switch 38- _1, 38- _2, 38- _3, and 38 - _4, and the cleaning stop switch 39 to terminate the washing, are formed from the anus washing LED40 and bidet LED41 Show in anal irrigation and in the bidet.

Thus constructed conventional local cleaning device any cleaning switch 37- _1, 37- _2, 37 _{-3, 37-4} or 38- _1, 38- _2, 3
_8-3, 38- _4, when is pushed flow sensor 1 by opening the solenoid valve 14
Adjust the opening of the output port 24 for anal irrigation or the output port 25 for bidet irrigation by driving the motor 29 so that the flow rate obtained from 9 or 20 is equal to the selected flow rate,
Cleaning of human body parts. If the spool 22 runs away during cleaning and exceeds the anal cleaning limit position or the bidet cleaning limit position, the micro switch 33 detects this and the motor 29 is stopped abnormally.

[Problems to be Solved by the Invention] However, when the power supply is cut off due to a power failure or the like during the cleaning, the spool 22 stops while the anal cleaning output port 24 or the bidet cleaning output port 25 is open. However, when cleaning is restarted again, the position of the spool 22 cannot be determined only by the state of the microswitch 33, and there is a drawback that cleaning becomes impossible.

The present invention has been made in view of such a problem, and determines whether or not the position of the spool 22 is in a neutral state before starting a cleaning operation. The cleaning is performed after returning to the neutral state.

[Means for Solving the Problems] In order to solve such problems, the present invention connects the hot water tank directly to the water supply, and uses the pressure of the water to supply the hot water in the hot water tank from the anal cleaning nozzle or the bidet cleaning nozzle. In a local cleaning device that jets out toward a human body part, a cleaning water input port communicating with the hot water tank, an anal cleaning output port communicating with the anal cleaning nozzle, and a bidet cleaning output port communicating with the bidet cleaning nozzle are provided. In each of the drilled casings, slide in the axial direction by the driving means,
A flow control switching valve provided with a spool for switching the output of the output port for anal cleaning or the output port for bidet cleaning and adjusting the opening of each output port; and between the flow control switching valve and each of the cleaning nozzles. A flow sensor to be provided,
A cleaning step for detecting a neutral position in which both output ports are closed by the movement of the spool and a cleaning limit position in which the opening state of one of the output ports exceeds the limit. When the spool is determined not to be in the neutral position based on the position of the spool obtained by the spool position detecting means and the open / closed state of the output port obtained by the flow rate sensor at the beginning of the start, the spool is moved to the neutral position. Control means for operating the driving means.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
Since the structure of the embodiment is the same as the structure described in the conventional example, the description is omitted.

Figure 5 and Figure 6 shows the control operation of the embodiment, Fig. 5 or the cleaning switch 37 - _1, 37- _2, 37- _3, 37- ₄ or 3
_8-1, 38- _2, 38- _3, 38- ₄ of the flow chart of the cleaning process executed by the interrupt, FIG. 6 is a flow chart showing the processing operation of the midpoint detection in the flowchart of FIG. 5.

In Figure 5, one of the cleaning switch 37 - _1, 37- _2, 37
- _3, 37- _4, or 38- _1, 38- _2, 38- _3, starts a washing process 38- ₄ is pressed, performing midpoint detection (1). In the process of detecting the midpoint, as shown in FIG. 6, the solenoid valve 14 is opened (9), and whether or not a set time t has elapsed such that hot water does not blow out from the corresponding anal cleaning nozzle 17 or bidet cleaning nozzle 18 is determined. Is determined (10). After the state that opens the solenoid valve 14 is set the time t elapsed, from the detection of the anal irrigation flow rate Q ₁ and the bidet flow Q ₂ obtained from the flow rate sensor 19 and 20 (11) the solenoid valve 14 closed Valve (12), micro switch 33
(13). In this determination, the micro switch 33 is in the case of off-state anal irrigation flow rate Q ₁ is a comparison of whether more than a predetermined flow rate Q ₀ (14), whether the bidet flow Q ₂ is larger than the predetermined flow rate Q ₀ By comparing (15) (16),
To determine the opening and closing states of the respective output port 24 or 25, if anal irrigation flow rate Q ₁ and video wash flow rate Q ₂ is greater than the predetermined flow rate Q _0, it is determined that a fault condition (17), anal irrigation flow rate Q ₁ is a predetermined flow rate when Q ₀ from less and bidet flow Q ₂ is larger than the predetermined flow rate Q ₀ determines the position of the spool 22 and the bidet limit position, also anal irrigation flow rate Q ₁ is a predetermined flow rate greater than Q ₀ and the bidet flow Q ₂ If less than the predetermined flow rate Q ₀ is determined spool 22 and the anus washing limit position, respectively to drive the motor 29 in a direction to move the spool 22 to the neutral position from the cleaning limit position return the spool 22 to the neutral position and (18), if anal irrigation flow rate Q ₁ and the bidet flow Q ₂ is less than the predetermined flow rate Q ₀ is determined that the neutral position the spool 22 is closed both output ports 24 and 25 (19), first Returning to the flowchart of FIG.

On the other hand, in the determination at step (13), anal irrigation flow rate Q ₁ Similarly, in the case of the micro switch 33 is turned on is the comparison of whether more than a predetermined flow rate Q ₀ (20), the bidet flow Q ₂
By but comparison of whether more than a predetermined flow rate Q ₀ (21) (2
2), to determine the opening and closing states of the output ports 24 and 25, if anal irrigation flow rate Q ₁ and the bidet flow Q ₂ is larger than the predetermined flow rate Q ₀ both output ports 24 and while remaining microswitch 33 is in the ON state 25 is determined to be in the closed state (2
3), if anal irrigation flow rate Q ₁ is a predetermined flow rate Q ₀ from less and bidet flow Q ₂ is larger than the predetermined flow rate Q ₀ determines the position of the spool 22 and the bidet limit position, also the anal irrigation flow rate Q ₁ If the flow rate Q ₂ is larger than the predetermined flow rate Q ₀ and the bidet cleaning flow rate Q ₂ is smaller than the predetermined flow rate Q ₀ , the spool 22 is determined to be the anal cleaning limit position, and the motor 29 is moved in the direction of moving the spool 22 from each cleaning limit position to the neutral position. the driven after returning the spool 22 to the neutral position (24), is set to be returned to the neutral state (25), if anal irrigation flow rate Q ₁ and the bidet flow Q ₂ is less than the predetermined flow rate Q ₀ Determines that there is no water (2
6) Return to the flowchart of FIG.

When the midpoint detection ends, it is determined whether or not the result of the midpoint detection processing is a neutral position (2). In this determination, when the position of the spool 22 is in the neutral state, the solenoid valve 14 is opened and the corresponding anal cleaning LED 40 or bidet cleaning LED 41 is washed.
Is turned on (3), and while waiting for the input of the washing stop switch 39 (4), the corresponding washing flow rate is controlled to be equal to the set flow rate (5). When the input of the cleaning stop switch 39 is detected after the cleaning of the relevant human body part is completed, the motor 29 is driven in a direction to return the spool 22 to the midpoint position (6), and the solenoid valve 14 is closed and Cleaning LE
The D40 or bidet cleaning LED 41 is turned off and the process returns to the main routine (7).

On the other hand, in the determination in step (2), if the result of the midpoint detection processing is a failure state, the anal cleaning LED 40 blinks if the water is out, and the bidet cleaning LED 41 blinks to notify the abnormal state and return to the main routine. (8).

Thus, before starting the washing, it is determined whether or not the spool 22 is in the neutral state. If the spool 22 is not in the neutral state, the spool 22 is returned to the neutral state before washing is performed. Position can be clearly determined, and cleaning can be performed safely. Further, if an abnormal state occurs in the process of detecting the middle point, the cause can be determined by the blinking state of each LED 40 or 41.

[Effects of the Invention] The present invention is configured as described above, and determines whether or not the position of the spool of the flow rate control switching valve is in the neutral state before starting the cleaning operation. By performing washing after returning the spool to the neutral state, even if power is interrupted during washing of the human body part and washing is stopped with one of the output ports open, the spool will be cleaned before starting the next human washing. Since the position is determined and the position is returned to the neutral position, the washing operation can be performed safely without preventing the washing from becoming impossible.

[Brief description of the drawings]

FIG. 1 is a plan view of a conventional local cleaning device, FIG. 2 is a water channel diagram of the device, FIG. 3 is an explanatory diagram of a flow control switching valve of the device,
FIG. 4 is a block diagram of a control system of the apparatus, and FIGS.
The figure is a flowchart showing the operation of the embodiment of the present invention. 12 is a hot water tank, 16 is a flow control switching valve, 17 is an anal wash nozzle, 18 is a bidet wash nozzle, 21 is a casing, 22 is a spool, 23 is an input port, 24 is an anal wash output port, 25
Is a bidet cleaning output port, 29 is a motor, 33 is a micro switch corresponding to spool position detecting means, and 36 is a microcomputer corresponding to control means.

Claims (1)

(57) [Scope of request for utility model registration] 1. A cleaning device, wherein a hot water tank is directly connected to a tap water, and the hot water in the hot water tank is blown out from an anal washing nozzle or a bidet washing nozzle toward a human body part by a pressure of the tap water. The casing is provided with a water input port, an anal washing output port communicating with the anal washing nozzle, and a bidet washing output port communicating with the bidet washing nozzle. A flow rate control switching valve having a spool for switching the output of the output port for anal irrigation or the output port for bidet irrigation and adjusting the opening of each output port;
The flow rate sensor provided between the flow rate control switching valve and each of the washing nozzles, and the movement of the spool limits a neutral position in which both output ports are closed and an open state of any one of the output ports. Spool position detecting means for detecting a cleaning limit position exceeding the limit of the spool, the spool position is determined by the spool position detecting means at the beginning of the cleaning process, and the spool is opened and closed by an output port obtained by the flow rate sensor. Control means for operating the driving means to move the spool to the neutral position when it is determined that the spool is not at the neutral position.