JPH03187428A - Closet water washing device - Google Patents

Abstract

PURPOSE:To make opening of a valve possible at the time of service interruption by pushing a disengaging pressing element of a shaft part of a lever against the spring force of a spring member to relieve an engagement of the pin of the shaft part with the pin engaging part of a gear of a reduction gear for closing a valve. CONSTITUTION:When a driving device 7 is stopped by a service interruption on the way where an electrically driving device 7 is driven for rotation of a lever 6, the device 7 stops as the lever 6 draws a string-shaped element 5 to open a valve 4. When a disengaging pressing element 41 at the tip of a shaft part 6a is then pushed, the shaft part 6 is pushed against the spring force of a spring member 21 to disconnect a pin 24 from a pin engaging part of a gear 15 of a reduction gear 11. The lever 6 is then rotated by the rotating force of the spring member 21 to its original position, and strikes against a stopper provided on a case body 9a to stop. The string-shaped element 5 drawn by the lever 6 is then loosed to make a water flow or the dead weight of the valve 4 close it for closing a discharge port 3.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application 1] The present invention relates to a toilet flushing device in which water stored in a cistern for flushing a toilet is electrically discharged by opening a valve.

[Prior Art 1] Japanese Patent Publication No. 1-33613 discloses a toilet flushing device in which the opening of a valve at a discharge port for discharging stored water in a cistern is performed electrically. In the device disclosed in Japanese Patent Publication No. 1-33613, the valve is closed by rotating a manual handle and rotating a lever in the event of a power outage.

[Problems to be Solved by the Invention] However, in the above-mentioned device in which the valve is closed by rotating the manual handle in the event of a power outage, it is difficult to rotate the manual handle by holding the manual handle in the hand. Due to its large size, the large manual handle protrudes outside the cistern and is exposed, resulting in a poor appearance.

The present invention was invented in view of the problems of the conventional example described above, and its purpose is to push the tip of the shaft of the lever when a power outage occurs in the middle of opening the valve in an electric type. With this simple operation, you can release the engagement between the lever and the final stage gear of the reduction gear, and it also eliminates the need for a manual handle to hold and rotate the gear as in the past, giving it a better appearance. To provide a toilet flushing device that can.

[Method #'j for solving the problem] The toilet flushing device of the present invention is provided in the cistern 2 of the flush toilet 1, and has a discharge port 3 for discharging the water stored in the cistern 2.
04 for opening and closing, a string-like body 5 whose -i portion is connected to tF4, a lever 6 to which the other end of the string-like body 5 is connected and for pulling up the string-like body 5, and a lever 6 for rotating. In a toilet flushing device configured with an electric drive device wi7 for moving the lever 6, the pongee of the lever 6 is inserted into the hole 18 of the final stage gear 15 of the reduction gear 11 interposed between the electric drive device 7 and the lever 6. jfls 6 g is loosely inserted in the axial direction and rotational direction, and a pin 24 is provided on the gear 15 so as to protrude from the shaft portion 6 a in a direction crossing the pongee direction.
An engagement for disengaging the pin 24 from the pin engaging portion 19 by applying a spring force in the direction of engaging the pin and pressing the tip of the shaft portion 6a in the axial direction against the spring force. This is characterized in that it is formed as a press part 41 for releasing the coupling, and by adopting such a configuration, the problems of the above-mentioned conventional example are solved.

[Effect 1 However, electric drive Vcft! The shaft portion 6a of the lever 6 is loosely inserted into the hole portion 18 of the final stage gear 15 of the reduction gear 11 interposed between the lever 7 and the lever 6, so as to be movable in the axial direction and the rotational direction. A pin retaining portion 19 is provided on the m wheel 15 with a pin 24 provided protruding in a direction crossing the
Electric drive!
! When the II equipment ra7 is driven, it is decelerated via the reduction gear 11 and the rotation of the final stage tooth Jtt15 is reduced to the shaft portion 6a of the lever 6.
The lever 6 is transmitted as a rotation to open the valve 4, and if a power outage occurs while the electric drive device 7 is operating, the lever 6 will stop mid-rotation. The pin 24 and the pin engaging portion 1 are pressed by pressing the engagement release pressing portion 41 at the tip of the shaft portion 6a directly or with a jig or the like.
The lever 6 can be released by releasing the engagement with the valve 9, and the valve 4 can now be closed by water flow or its own weight. The engagement avI between the speed reducer 11 and the lever 6 can be released by simply pressing the disengagement pressing part 41 at the tip of the shaft 6a, which simplifies the configuration and
Since the engagement can be released by pressing a, the conventional manual handle that is held and rotated by hand is no longer necessary.

['X, Example 1 Hereinafter, the present invention will be described in detail based on an example shown in the accompanying drawings.

The cistern 2 is for storing water to be flushed into the flush toilet 1, and the cistern 2 may be of the type attached to the rear of the flush toilet 1, as shown in Fig. 1, or it may be placed away from the flush toilet 1. It may be of any type. As shown in FIG. 2, the bottom of the cistern 2 is provided with a discharge port 3 for discharging the water stored in the cistern 2 into the flush toilet bowl 1. The discharge port 3 is provided with a valve 4 for opening and closing the discharge port 3. The valve 4 is rotatably supported by a shaft 8 near the m portion of the discharge port 3, and one end of a string-like body 5 such as a string is connected to the end opposite to the shaft-supported portion of the valve 4. It is. The other end of the string-like body 5 is connected to the tip of a lever 6 for pulling up the string-like body 5. A case 9 is attached to the side wall of the cistern 2, and an electric drive device 7 is installed inside the case 9 as shown in FIGS. 3, 4, and 5. 11The driving force of Ilk position 7 is transferred to reduction gear 1.
1 to the lever 6, the lever 6 is rotated to pull up the string-like body 5, and by selecting the amount of rotation of the lever 6, the lever 6 is moved to the position where the valve 4 is completely opened and a large flow is allowed to flow. A state in which the lever 6 is driven and a state in which the lever 6 is driven to a position where the valve 4 is opened halfway and a small amount of water flows can be freely selected.

In the embodiment shown in the accompanying drawings, a stepping motor is used as the electric drive device 7, and is attached to the case body 9a of the case 9 with screws. Output shaft 1 of electric drive device 7
The zero rotation is transmitted to the lever 6 via a speed reduction device 11 made up of a plurality of gears. A hole 14 is provided in the plate 13 for the receiver installed on the pair of bosses 12 provided on the case body 9a.
The shaft 6a of the L-shaped lever 6 is rotatably inserted into the hole 14 of the plate 13, and the shaft 6a has a hole for the final stage tooth 1t15 of the reduction gear 11. 18 is a rotatably loose fit. A cylindrical body 16 serving as a spacer is loosely fitted between the tIJ1t15 and the receiver plate 13 so as to be freely rotatable. Here, in the embodiment shown in the accompanying drawings, the cylindrical body 16 and the final stage tooth IL15 are separate bodies, but they may be formed integrally. The receiver of the final stage gear 15 has a cylindrical portion 17 protruding from the surface opposite to the plate 13, and a groove is provided at the bottom of the cylindrical portion 17 to serve as a pin retaining portion 19. The receiver of the shaft portion 6a of the lever 6 has a spring receiver 2 on the part that protrudes beyond the plate 13.
0 is fixed, and the bah receiver 20 is attached to the shaft part 6 of the lever 6.
It is designed to rotate together with a. Further, the bridge is provided with a stiffener 21 between the plate 13 and the spring receiver 20.

The fill spring 21 is made of a coil spring, and one end 21a of the coil spring is engaged with a locking part 22 provided on the plate 13, and the other end 21b of the fill spring is fixed on the spring receiver 20. It is locked in the locking part 23. A pin 24 is attached to the shaft portion 6a, and this pin 24 normally engages with the pin engaging portion 19, and this engaged state is maintained by a stiffener 21 that moves the shaft portion 6a as shown in FIGS. 3 and 5. It is maintained by a spring force that moves in the direction of arrow A in the figure. By locking both ends of the coil spring 21, the spring member 21 is biased to rotate in one direction, and when the lever 6 rotates in the direction to open the valve 4, the spring member 21 The bending force that attempts to rotate the lever 6 in the direction in which the valve 4 closes is multiplied by one. The shaft portion 6a of the lever 6 rotatably passes through the hole 25 in the lid 9b of the case 9.
It also passes through the hole 26 of the case body 9a so as to be rotatable. When the case 9 is installed inside the cistern 2 as shown in FIG.
It is inserted into the hole 42 of.

Here, the engagement release pressing portion 41 at the tip of the shaft portion 6 is f:I
As shown in Figure S5 (a), it is preferable not to protrude from the hole 42 of the cistern 2, but even if it does protrude from the hole 42, it is preferable to make it protrude only a little. In addition, when the case 9 is attached to the outside of the cistern 2 as shown in FIG. 5(-b), the shaft portion 6a
The engagement release pressing part 42 at the tip of the case body 9a is
6 to the outside, or be located within the hole 26 so as not to protrude to the outside.

By the way, the electric drive device 7 consisting of a stepping motor
As shown in FIG. 8, the control unit 9 from the control unit 27 is sent to the drive unit 28, and the drive unit 28 outputs a drive signal to drive the electric drive device 7 consisting of a stepping motor. There is. In FIG. 8, 29 is a toilet seat switch, and 30 is an operation switch. Toilet seat switch 29
The switch is turned on when a person sits on the toilet seat and turned off when a person stands up from the toilet seat.The operation switch 30 is attached to, for example, a wall, and is a switch that is unrelated to the toilet seat switch 29.

When a person sits on the toilet seat, the toilet seat switch 29 is turned on as shown in FIG. A pin 24 provided on the shaft portion 6a of the lever 6 is attached to the pin engaging portion 19 of the final stage gear 15 of the deceleration VC device 11.
Since the tooth 4t1 is inserted and engaged by the spring material 21, the tooth 4t1
(The lever 6 is set so that the rotation of the lever 6 can be transmitted as the rotation of the lever 6), the lever 6 is rotated by a certain angle in the forward rotation direction, the string-like body 5 is pulled, and the lever 6 is stopped after being rotated by a certain angle. Then, the valve 4 is opened in a half-open state as shown in FIG.

Then, after a certain period of time has elapsed, the stepping motor reverses, and the lever 6 rotates by a certain angle in the reverse direction, returning to the initial state and stopping. In this case, when the string-like body 5 is loosened,
The valve 4, which is in the open state, is sucked in by the suction force of the water flowing from the outlet 3, and the valve 4 rotates to the state shown in FIG. 2(a), thereby closing the outlet 3. Here, when the small volume of water used in the pre-washing is released, the water level in the cistern 2 will drop by that amount, so the water supply device (not shown) will automatically supply water to only the lowered amount. Ru0
Next, after an arbitrary period of time has elapsed, when you stand up from the toilet seat, the toilet seat switch 29 turns off, and at the same time, the stepping motor rotates in the forward rotation direction, rotates the lever 6 in the forward rotation direction, and pulls the string-like body 5. The valve 4 is rotated to the fully open state as shown in FIG. 2(b), and when the valve 4 is rotated to the fully open state, the Stellar Swing motor rotates in the reverse direction and the lever 6 is rotated in the reverse direction to the initial position.

When the valve 4 is fully open as shown in Fig. 2(b),
Like the conventional valves provided in this type of cistern 2, the valve 4 maintains its open state by itself until the water stored in the cistern 2 is completely discharged by the water discharging force. In this way, Cistern 2
Drain the water stored inside and use a large amount of water j) Flush toilet bowl 1
When the water stored in the cistern 2 is completely discharged, the water flow between the valve 4 and the discharge port 3 decreases, and the valve 4 closes due to its own weight as shown in Fig. fjtJ2 (,).
Water storage in the cistern 2 is started again.

On the other hand, when urinating, use the operation switch 30 as shown in FIG.
By operating and turning on the stepping motor, the stepping motor rotates in the forward rotation direction, rotating the lever 6 by a certain angle in the forward rotation direction.
is rotated in the normal rotation direction by a certain angle, the string-like body 5 is pulled, and the string member 5 is stopped after being rotated at a certain angle, and the valve 4 is opened to a half-open state as shown in FIG. A small amount of stored water is discharged from the discharge port 3 to clean the inside of the flush toilet bowl 1, and after a certain period of time, the stepping motor is reversed and the lever 6 is rotated by a certain angle in the reverse direction to return to the initial state and stop. In this case, when the string-like body 5 is tied, the valve 4, which is in a half-open state, is sucked in by the suction force of the water flow flowing from the outlet 3, and the valve 4 returns to the state shown in FIG. 2(a). to close the discharge port 3. Here, when the small volume of water used in the above-mentioned washing is released, the water level in the cistern 2 decreases by that amount, so only the decreased amount is automatically supplied with water by a water supply device (not shown). .

By the way, if the electric drive VC device 7 stops due to a power outage or the like while the electric drive device 7 is being driven to rotate the lever 6, the lever 6 will stop, and the lever 6 will pull the string-like body 5 to open the valve. Since the cistern 4 is stopped in an open state, the water stored in the cistern 2 is discharged from the discharge port 3 and the water level is lowered, so that water is continuously supplied from the water supply device and left to flow. In such a case, if you press the disengagement pressing part 41 at the tip of the shaft part 6a of the lever 6 directly with your fingertip or indirectly with a jig such as a stick or a screwdriver, the shaft 11s G a will be released. The pin 24 is pushed against the spring force of the spring material 21 and disengages from the pin engaging portion 19, and the lever 6 is rotated to the initial position by the rotational force of the spring material 21, and the stopper 31 provided on the case body 9a is moved. When the lever 6 is rotated to the initial position, the string-like body 5 pulled by the lever 6 is loosened, and the valve 4 rotates due to the water flow when it is half open and due to its own weight when it is fully open. to close the discharge 13. Here, lever 6
When the lever 6 returns to its initial position, the pin 24 provided on the lever 6 also returns to its initial position. In addition, in this state, since the pressure on the shaft portion 6a is released, the pin 24 is shifted from the pin engagement portion 19 at the bottom of the cylindrical portion 17 of the final stage gear 15 due to the stiffness of the material 21. Next, when the power outage ends, the stepping motor is set to rotate in the opposite direction (for example, 180° reverse rotation), so that the stepping motor rotates in the opposite direction, and the front part provided on the final stage tooth ntis Since the gear 15 rotates with the pin 24 in elastic contact with the bottom of the gear 17, the tooth IL15 stops when the pin engaging portion 19 engages with the pin 24. In this way, it is set to the initial state.

In the above embodiment, a stepping motor is used as the electric drive wave e7, but other driving means may be used.

[Effect of the invention 1] At the initial stage of the invention, as described above, the shaft of the lever was axially inserted into the hole 1** of the final stage of the deceleration gcM interposed between the electric drive 9JJ device and the lever. and applying a spring force in a direction to engage a pin provided on the shaft part protruding in a direction crossing the axial direction with a pin engaging part provided on the gear; The tip of the shaft is used as a disengagement pressing part that presses the shaft in the axial direction against the spring force to detach the pin from the pin retaining part, so the spring force normally releases the pin. The valve can be opened by engaging the pin engaging portion and transmitting the drive of the electric drive device to the lever via the reduction gear, and in the event of a power outage while the electric drive device is in operation. , By pressing the disengagement pressing part at the tip of the shaft directly or with a jig, etc., the engagement between the pin and the pin engaging part is released, the lever is set to 79-, and the valve closes by water flow or its own weight. In addition, it is possible to engage and disengage with the cylindrical structure, and in particular, the engagement can be disengaged simply by pressing the engagement release pressing part at the tip of the shaft of the Leno (-). As a result, there is no need for a conventional manual handle that is held and rotated by the hand, and there is no need for a manual handle that is held and rotated by the hand, which results in an unsightly large exposed part. It is something.

[Brief explanation of drawings]

Figure 1 is an overall side view of the present invention, Figures 2 (a), (b), and (c).
) is an explanatory diagram of the fully closed state of the same valve, the fully open state discharging a large amount of water, and the half open state discharging a small amount of water. Figure 3 is an exploded view of the same electric drive device, speed reducer, lever, etc. A perspective view, FIG. 4 is a plan view of the same as above with the lid removed, FIG. 5 (aHb) is a side sectional view of one embodiment of the above and a side sectional view of another embodiment, and FIG. FIG. 7 is an explanatory diagram of the operation of the toilet seat switch, stepping motor, and lever when urinating, and FIG. 8 is an explanatory diagram of the operation of the operating switch, stepping motor, and lever during urination. FIG. 1 is a block diagram of a flush toilet, 2 is a cistern, 3 is a discharge valve, 4 is a valve 1.5 is a string-like body, 6 is a lever, 6a is a shaft portion, 7 is an electric drive device,
11 is a speed reducer, 15 is a gear, 18 is a hole, 19 is a pin engaging portion, 24 is a pin, and 41 is an engagement release pressing portion.

Claims (1)

[Claims] (1) A valve located in the cistern of the flush toilet that opens and closes the outlet to release water stored in the cistern, a string-like body whose one end is connected to the valve, and the other end of the string-like body are connected. In a toilet flushing device constituted by a lever for pulling up a string-like body and an electric drive device for rotating the lever, the last stage of the speed reduction device is interposed between the electric drive device and the lever. A pin engagement part in which the shaft of a lever is loosely inserted into the hole of the gear so that it can move freely in the axial and rotational directions, and the gear is provided with a pin that protrudes from the shaft in a direction that intersects with the axial direction. a disengagement pressing part for disengaging the pin from the pin engagement part by applying a spring force in the direction of engagement and pushing the tip of the shaft part in the axial direction against the spring force; A toilet flushing device characterized by comprising: