JP3153139B2 - Flush toilet cleaning equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a method for detecting a user,
The present invention relates to a flush toilet flushing device that automatically flushes flush water into a toilet without a user operating a lever or the like.

[0002]

2. Description of the Related Art In recent years, flush toilets (woman toilets different from morning glory) provided with a washing device have become widespread. This washing apparatus detects a user by a detecting means such as an infrared sensor mounted on a wall or the like, drives a discharging means connected to the toilet based on a toilet entry time (use time) or the like, and puts the user in the toilet. It is configured to discharge water.
In addition, the automatic cleaning device is provided with a manual water discharge switch as a water discharge operation means, similarly to the detection means for detecting the use state of the user. This is for etiquette cleaning, especially found in women's toilets, and allows the user to arbitrarily discharge a small amount of water.

[0003]

However, the conventional cleaning apparatus has the following problems.

(1) Since the detection means and the emission means are separated from each other, a structure for connecting them is required. This connection structure is a wired type that outputs a detection signal from the detection means to the emission means using a cord, and a wireless type that outputs the detection signal from the detection means to the water discharge means by radio waves or optical signals without using a cord. Two types are conceivable. However, since the former wired type requires wiring, there is a problem that the installation work is troublesome and the wiring becomes an obstacle. Further, the latter wireless type has a problem in that the electrical configuration becomes more complicated than that of the wired type, so that the cost increases.

[0005] (2) The detecting means has to perform a severe operation when it is installed in the toilet room. That is,
Since the sensor provided in the detecting means has directivity, if the mounting position of the detecting means is not accurately set, the user cannot be accurately detected, and the water discharging operation by the water discharging means is performed normally. Absent. Since the sensor of the detecting means is stored and held in the case in advance, the orientation of the sensor is changed by adjusting the mounting position of the case with respect to a wall or the like when the detecting means is installed.

However, since the sensor is housed in the case, there is a limit in changing the orientation of the sensor due to the installation space and the like, and fine adjustment is difficult. For this reason, there has been a problem that the work for installing the detecting means is very troublesome.

(3) With regard to the manual water discharge switch, which is one of the detection means, some users may feel uncomfortable because the switch, such as a touch switch, is directly touched by the user.

[0008] The present invention was made in order to solve the above problems, a first object is to allow installation in a small space, can be simplified connection structure of the detecting means and water discharge means In addition, an object of the present invention is to provide a flush toilet flushing device having a sanitary water discharging operation.

A second object of the present invention is to provide a flush toilet flushing apparatus capable of easily performing fine adjustment of the direction of the detecting means.

[0010]

In order to achieve the above object, according to the first aspect of the present invention, a detecting means for detecting a use situation of a user and a detecting means for detecting a user by the detecting means are provided. A flush toilet provided with a water discharge means for discharging flush water to a toilet, wherein the detection means and the water discharge means are housed and held in a common casing, and the casing is an existing flush valve connected to the toilet bowl. detachably connected to the water discharge means, Ri Oh an actuator for opening and closing the flush valve based on a detection signal of the detection means, the casing of the first and second chambers 2
The first chamber contains the actuator,
In addition, the detecting means is individually accommodated in the second chamber, and the detecting means is provided in the first chamber.
Is detachably connected to the flash valve, and the second chamber
The gist of the invention is that it is detachably connected to the first chamber .

According to the second aspect of the present invention, the use of the user
Detecting means for detecting a situation; and
To discharge flush water to the toilet based on user detection
In a flush toilet cleaning device provided with a water discharging means,
The detection means and water discharge means are housed and held in a common casing.
The casing is installed on the existing flash connected to the toilet.
The water discharge means is detachably connected to the
Open and close the flash valve based on the detection signal of the means
An actuator, wherein the casing comprises a first chamber and a second chamber.
And the first chamber is divided into a first chamber and a second chamber.
However, detection means are individually accommodated in the second chamber,
The second chamber is connected to the first chamber so as to be rotatable left and right.
It is the gist of that.

According to a third aspect of the present invention, in the first or second aspect of the invention, the detecting means is a user.
At least one of toilet use detection and manual water discharge detection
The gist is to detect the usage status .

According to the fourth aspect of the present invention, the first aspect or
In the invention according to claim 2 , the detecting means is a supporting portion.
Supported rotatably in the vertical direction with respect to the second chamber through the material.
The gist is that it has been done .

(Operation) According to the first aspect of the present invention, when the user uses the toilet, the use state of the user is detected by the detecting means. Then, the detection means non-mechanically and hygienically detects the necessity of water discharge for the user to detect the required amount of water discharge operation. Thus, the actuator (water discharging means) is driven, and the flush water is discharged to the toilet. Since the detection means and the actuator are housed and held in a common casing, the connection structure between them is simplified. Casein
Is divided into two rooms, a first room and a second room, and the first room is
The actuator and the detection means in the second chamber are individually provided.
For example, since only the detection means is stored in the
When performing maintenance, only the second chamber has a flash valve
The workability is improved by performing the operation after removing from the work.

[0015] In the invention of claim 2, Keshi
The second chamber of the ring is connected to the first chamber so as to be rotatable left and right.
Since the second chamber is rotated, the
The detection direction to the operation direction of the output means is changed.

According to the third aspect of the present invention, in addition to the operation of the first or second aspect of the present invention, the detecting means is provided.
Detects the use of the toilet bowl by the user and determines whether the use is
Automatic water discharge (automatic
Function to perform dynamic cleaning) or active water discharge by the user
(Detection function to drive the function to execute (manual water discharge))
Hygiene that saves water according to the user's usage
To provide a targeted and easy-to-use flush toilet.

[0017] In the invention described in claim 4, claim
In addition to the function of the invention described in claim 1 or 2, the support member
By rotating the detection means with respect to the second chamber,
The detection direction in the direction is changed.

[0018]

[0019]

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 1, a discharge pipe 3 is connected to a Japanese style toilet 1 via a supply pipe 2 connected to a water pipe (not shown). A flash valve 4 is connected between the supply pipe 2 and the discharge pipe 3. Since the flash valve 4 is an existing one and its structure is also known, its detailed configuration will be briefly described.

A cleaning device 5 is provided above the flash valve 4.
Is attached. Casing 6 constituting cleaning device 5
Is vertically divided into a first chamber A and a second chamber B. A pull-type solenoid 8 as an actuator and a battery 9 are accommodated via a bracket 7 in a first casing 6a constituting the lower first chamber A. Solenoid 8
A valve box 10 is connected to a lower end face of the valve box.

A bush 12 having a piston guide hole 11 is screwed into the upper part of the flash valve 4. The bush 12 accommodates a piston valve 13 slidably up and down. When the piston valve 13 is at the upper position, communication between the supply pipe 2 and the discharge pipe 3 is established. When the piston valve 13 is at the lower position, the space between the supply pipe 2 and the discharge pipe 3 is shut off.
The valve box 10 is connected to an upper portion of the bush 12. The lower end surface of the valve box 10 and the piston valve 1
A valve chamber 14 is formed between the valve chamber 3 and the upper end surface. The piston 15 of the piston valve 13 has a communication hole 16 communicating between an inflow port (not shown) communicating with the supply pipe 2 and the valve chamber 14.

A communication port 17 communicating with the discharge pipe 3 is opened at the side of the flash valve 4, and the communication port 17 is closed by a blind plug 18. A bypass pipe 19 is provided between the blind plug 18 and the side of the valve box 10.
Communication. The valve box 10 includes the valve chamber 1.
A communication passage 20 communicating between the bypass pipe 4 and the bypass pipe 19 is formed. A plunger rod 21 of the solenoid 8 is arranged at an intermediate portion of the communication passage 20 so that the valve chamber 14 and the bypass pipe 19 are communicated or shut off with the vertical movement of the plunger rod 21. Has become. That is, when the solenoid 8 is held in the non-excited state, the connection between the valve chamber 14 and the bypass pipe 19 is cut off. When the solenoid 8 is held in the excited state, the valve chamber 14 is closed. And the bypass pipe 19 are kept in communication.

As shown in FIGS. 1 and 2, the second chamber B
The sensor 22 constituting the detecting means is accommodated in the second casing 6b constituting the above. The sensor 22 includes light receiving elements 22c, 2 paired with infrared light emitting elements 22a, 22b.
2d. On the wall surface of the second casing 6b, a detection window 23 that opens toward the user (not shown) using the toilet 1 is formed. This detection window 2
The sensor 22 detects the user's usage status via 3.

The infrared light emitting element 22a and the light receiving element 22
c detects the user's toilet usage time (human body detection),
The time (in the present embodiment, starting from 120 seconds)
When the user exits the room, the amount of water is determined to be large or small, and water is automatically discharged. The infrared light emitting element 22b and the light receiving element 2
With 2d, arbitrary water discharge by the user, that is, manual water discharge is detected (hand detected) by holding a hand over the front of the sensor 22, and water is discharged. The detection window 23 is shielded by a translucent cover 38.

The sensor 22 is supported by an inner case 24 as a support member via a circuit board (not shown). A pair of left and right rotation shafts 25 are integrally formed on the side surface of the inner case 24. An opening 26 facing the detection window 23 is provided at the front of the inner case 24.
Are formed. A pair of left and right locking pieces 27 projecting downward are integrally formed on the upper inner wall surface of the second casing 6b. An arc surface 28 having substantially the same diameter as the outer diameter of the rotation shaft 25 of the inner case 24
Are formed. The rotating shaft 25 of the inner case 24 is engaged with the two arc surfaces 28.

A pair of left and right projecting pieces 29 projecting downward are integrally formed on the upper inner wall surface of the second casing 6b. A locking plate 30 is fastened and fixed to both protruding pieces 29 by screws 31. An inclined surface 32 is formed at the front end of the locking plate 30, and the rotating shaft 25 of the inner case 24 is in contact with the inclined surface 32. That is, the rotating shaft 25 is held by the arc surface 28 of the locking piece 27 and the inclined surface 32 of the locking plate 30, and the inner case 24 is connected and held in the second casing 6b in a suspended state.

As shown in FIG. 2 and FIG. 3, a plurality of radially extending locking projections 33 are provided at the center of the upper surface of the first casing 6a.
Are formed. An adjustment plate 34 is connected to the upper surface of the first casing 6a via screws 36. At the center of the lower surface of the adjustment plate 34, a locking ridge 35 that engages with the locking ridge 33 formed on the upper surface of the first casing 6a is formed. The engagement of the locking projections 33 and 35 causes the adjustment plate 3 to be in contact with the first casing 6a.
4 is restricted. Notch recesses 37 are formed at three places on the peripheral surface of the adjustment plate 34. Further, locking recesses 39 communicating with the cutout recesses 37 are formed at three places on the lower surface of the adjustment plate 34. A pair of rotation stopper pieces 40a and 40b are integrally formed on the upper surface of the adjustment plate 34 at a predetermined interval. Further, the rear portion between the two rotation stopper pieces 40a and 40b (adjustment plate 3
A release stopper piece 41 is integrally formed on the (center side of 4).

Engaging projections 42 projecting inward are integrally formed at three positions on the inner edge of the lower surface of the second casing 6b. The width of each engagement projection 42 is substantially the same as the width of the cutout recess 39 formed in the adjustment plate 34. A locking stopper 43 extending downward is integrally formed on the inner wall surface of the second casing 6b. At the tip of the locking stopper 43, a projecting portion 44 projecting outward is integrally formed. The width of the protrusion 44 is substantially the same as the width between the pair of rotation stopper pieces 40a and 40b formed integrally with the adjustment plate 34. Projection 4
A through hole 45 is formed in the wall surface of the second casing
Are formed.

When the cleaning device 5 is assembled, the engaging projections 42 of the second casing 6b are engaged with the locking recesses 39 of the adjustment plate 34, and the locking stoppers 43 are provided.
Of the rotation plate 4 of the adjustment plate 34
0a, 40b. Therefore, in this state,
The engagement between the engagement protrusion 42 and the locking concave portion 39 prevents the second casing 6b from floating with respect to the first casing 6a. Further, the engagement between the projection 44 of the locking stopper 43 and the rotation stopper pieces 40a, 40b of the adjustment plate 34 causes the second casing 6b to be in contact with the first casing 6a.
Is prevented from rotating.

Next, the operation of the cleaning device 5 will be described.
When the infrared light emitting element 22a and the light receiving element 22c of the sensor 22 detect a toilet user, a controller (not shown) housed in the second casing 6b starts a timer.
Then, when the controller confirms that the user has left the room using the sensor 22, the use time of the user is equal to or less than the predetermined time (120
Second) has elapsed. Here, when the controller determines that the usage time has passed the predetermined time, it determines that the usage status of the user is large usage, excites the solenoid 8 and contracts the plunger rod 21. Then, communication between the bypass pipe 19 and the valve chamber 14 is made through the communication passage 20 . Thus, the water stored in the valve chamber 14 is discharged from the communication passage 20 through the bypass pipe 19 to the communication port side. As the water in the valve chamber 14 is discharged, the pressure in the valve chamber 14 decreases, and the piston 15
Is increased by the water pressure in the supply pipe 2. Thereby, the supply pipe 2 and the discharge pipe 3 are communicated with each other, and the flush water is discharged into the toilet 1.

When the controller excites the solenoid 8 for a predetermined time, the excitation of the solenoid 8 is stopped and the plunger rod 21 is extended. Then, since the communication path 20 is shut off and the communication between the valve chamber 14 and the communication port 17 is interrupted, water enters the valve chamber 14 from the communication hole 16 of the piston 15 and the pressure in the valve chamber 14 increases. Is done. Then
The piston 15 descends, the connection between the supply pipe 2 and the discharge pipe 3 is shut off, and the discharge of the wash water to the toilet 1 is stopped.

When the controller determines that the use time does not exceed the predetermined time, the controller sets the excitation time of the solenoid 8 to be short, so that the water discharge amount is about half of the water discharge amount during the heavy use. The flush water is discharged to the toilet 1.

Next, the operation of manual water discharge will be described. When the hand is held over the front surface of the sensor 22, the operation is detected by the infrared light emitting element 22b and the light receiving element 22d. The controller excites the solenoid 8 for a predetermined time based on the detection operation of the infrared light emitting element 22b and the light receiving element 22d, and
Rinse the wash water.

Next, the operation when the detection direction of the sensor 22 is changed (adjusted) will be described. If the detection direction of the sensor 22 is inappropriate and the detection sensitivity of the user is insufficient,
First, a pin (not shown) is inserted through the through hole 45 of the second casing 6b to press the protrusion 44 of the locking stopper 43 inward. Then, the base end of the locking stopper 43 bends and deforms as shown by the two-dot chain line in FIG. That is,
The protrusion 44 is pressed by the pin to release the engagement between the protrusion 44 and the rotation stopper pieces 40a, 40b. At this time, by engaging the stopper 43 is in contact with the release stopper 41, further deformation is prevented. This allows
It is possible to prevent the locking stopper 43 from breaking due to excessive insertion of the pin.

With the projection 44 of the locking stopper 43 disengaged from the rotation stopper pieces 40a, 40b, the second casing 6b is turned in the direction of the arrow in FIG.
2 faces the notch recess 37 of the adjustment plate 34. That is, the engagement between the engagement protrusion 42 and the locking recess 39 is released. By lifting the second casing 6b in this state, the second casing 6b can be separated from the first casing 6a.

Here, when the sensitivity of the sensor 22 is deemed to be poor due to the inappropriate orientation in the left-right direction, a screw 36 connecting the adjustment plate 34 and the first casing 6a is used.
Remove. This allows the adjustment plate 34 to rotate with respect to the first casing 6a. Next, the adjustment plate 34
Is rotated by an appropriate amount with respect to the first casing 6a in a direction in which the sensitivity of the sensor 22 is considered to increase. And screw 36
And adjust the adjustment plate 34 again to the first casing 6.
Rotation is disabled with respect to a.

When the sensitivity of the sensor 22 is deemed to be poor due to an inappropriate vertical orientation, the screw 31 on the second casing 6b side is loosened. Thereby, the pressure for holding the arc-shaped surface 28 of the locking piece 27 holding the inner case 24 and the locking plate 30 is reduced, and the rotation of the inner case 24 with respect to the second casing 6b becomes possible. Next, the inner case 24 is rotated by an appropriate amount in the direction (vertical direction) in which the sensitivity of the sensor 22 is considered to be higher with respect to the second casing 6b. Then, the screw 31 is tightened so that the inner case 24 cannot rotate with respect to the second casing 6b again.

Next to correspond to notched recess 37 of the engagement projection 42 of the adjustment plate 34 of the second casing 6b, writes because the recess 37 notched engaging projections 42. At this time, the projecting portion 44 of the locking stopper 43 is connected to one of the rotation stopper pieces 4.
The locking stopper 43 comes into contact with the back surface of Oa, and is deformed inward. In this state, the second casing 6b is turned in the direction opposite to the direction of the arrow in FIG. Thereby, the engagement protrusion 42 of the second casing 6b is engaged with the locking recess 39 of the adjustment plate 34. At the same time, the projecting portion 44 of the locking stopper 43 rides over the one rotation stopper piece 40a and is engaged between the two stopper pieces 40a and 40b. Thereby, rotation and floating of the second casing 6b with respect to the first casing 6a are prevented.

Thus, the detection direction of the sensor 22 is adjusted. In the present embodiment, the following effects can be obtained by configuring the cleaning device 5 as described above.

(1) By connecting the casing 6 containing the solenoid 8 and the sensor 22 to the existing flash valve 4, the connection structure between the sensor 22 and the solenoid 8 can be simplified and the cost can be reduced. And the space for installing the device 5 can be reduced.

(2) The casing 6 is divided into a first casing 6a containing the solenoid 8 and a second casing 6b containing the sensor 22, and one of the first casings 6a
Connected to the flash valve 4 and the other second
The casing 6b was detachably connected to the first casing 6a. Accordingly, when performing maintenance on only the sensor 22, it is possible to perform maintenance on the sensor 22 by removing only the second casing 6b from the first casing 6a without removing the entire casing 6 from the flash valve 4.

(3) Since the second casing 6b is rotatable in the left-right direction with respect to the first casing 6a,
The detection direction (directivity) of the sensor 22 to the left and right can be easily and finely adjusted.

(4) The inner case 24 supporting the sensor 22 can be vertically rotated with respect to the second casing 6b, so that the detection direction of the sensor 22 in the vertical direction can be adjusted easily and finely. can do.

(5) Since the operation of the manual water discharge switch is detected without touching the user directly, the operation is sanitary. The above embodiment may be embodied as follows.

(1) The detecting means may be embodied in place of the sensor 22 in place of an ultrasonic sensor or the like .

(2) The second casing 6b may be embodied by being detachably and non-rotatably connected to the first casing 6a. (3) Inner case 2 using sensor 22 as a support member
It may be embodied by directly fixing to the second casing 6b without passing through the fourth casing 6b.

(4) As a water discharging means and an actuator,
May be embodied in place of the motor or the like in addition to the solenoid 8.

[0048]

According to the first aspect of the present invention, since the detection means and the actuator are housed and held in a common casing, the connection structure between the two can be simplified, and the size of the apparatus can be reduced. Cost can be reduced. Further, the casing is provided with a first housing for accommodating the actuator.
Divided into two chambers, a first chamber and a second chamber accommodating the detecting means.
Since the chamber is detachably connected to the flash valve, the workability of assembling can be improved.
Furthermore, the first and second chambers are detachably connected.
Individual maintenance without removing the entire casing
Nonce work can be performed easily and assembled
Workability can be further improved.

According to the second aspect of the present invention, the detecting means
The second chamber accommodating the first chamber is rotatably connected to the first chamber.
Thereby, only the second chamber is rotated with respect to the first chamber.
How to easily and subtly detect the detection means in the left and right direction
The direction can be changed. As a result, user detection can be performed well.
I can.

According to the invention described in claim 3, according to claim 1
Or, in addition to the effects of the invention described in claim 2, use by the user
Determine whether the situation is heavy use or small use, and
To change the amount of flush water discharge according to the situation
A higher water saving effect can be obtained. Or manual release
Water can be discharged without touching hands
It is hygienic and easy to use.

According to the invention set forth in claim 4, according to claim 1,
Alternatively, in addition to the effect of the invention described in claim 2, the detection means is supported.
The supporting member is rotatable up and down with respect to the second chamber via the holding member.
The supporting member is rotated with respect to the second chamber.
The detection means in the vertical direction easily and subtly.
You can change the exit direction. This allows for better user detection
Can be done.

[0052]

[Brief description of the drawings]

FIG. 1 is a partial front sectional view of a cleaning device according to an embodiment.

FIG. 2 is a side sectional view of a cleaning device.

FIG. 3 is an exploded perspective view of the cleaning device.

[Explanation of symbols]

1 ... toilet bowl , 4 ... flush valve, 5 ... cleaning device, 6 ...
Casing, 6a ... First casing constituting the first chamber,
6b: second casing constituting the second chamber, 8: water discharge means
And a solenoid as an actuator , 22 a sensor as a detecting means, 24 an inner case as a support member, A ... a first chamber, B ... a second chamber.

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) E03D 5/10 E03D 3/02-3/06

Claims (4)

(57) [Claims] An apparatus for cleaning a flush toilet, comprising: detecting means for detecting a user's use situation; and water discharging means for discharging flush water to a toilet based on the detection of the user by the detecting means. The detecting means and the water discharging means are housed and held in a common casing, and the casing is detachably connected to an existing flash valve connected to a toilet, and the water discharging means is configured to flash based on a detection signal of the detecting means. An actuator for opening and closing a valve, wherein the casing is divided into two chambers, a first chamber and a second chamber, wherein the actuator is housed in the first chamber, and the detecting means is housed in the second chamber, respectively; the first chamber is removably connected to the flush valve, before
The second chamber is a flush toilet cleaning device that is detachably connected to the first chamber . 2. Detection for detecting a use situation of a user.
Means for washing the toilet bowl based on the detection of the user by the detecting means.
Washing a flush toilet equipped with a water discharging means for discharging water
In the purification device, the detection means and the water discharge means are housed and held in a common casing.
And the casing is connected to the toilet
The water discharging means is detachably connected to the shuffle valve.
Open / close the flash valve based on the detection signal of the discharge means
Actuator, wherein the casing has a first chamber and a second chamber.
The first chamber is divided into two chambers;
And the second chamber individually accommodates detection means.
The second chamber is connected to the first chamber so as to be rotatable left and right.
Flush toilet flushing equipment. 3. The method according to claim 2, wherein the detecting means detects the use of the toilet by the user.
Detect at least one usage condition among manual water discharge detection
The flush toilet according to claim 1 or 2, wherein the flush toilet is provided.
Cleaning equipment. 4. The detecting means is provided in a second chamber via a supporting member.
2. The device is supported so as to be rotatable in the vertical direction.
Or the flushing toilet cleaning device according to claim 2.