JPH11210052A - Flush toilet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a new flush toilet capable of creating the hydienic safety by definitely making sealing water by forming a sealing water trap by operating trap means even during power supply interruption due to the occurrence of power failure. SOLUTION: A fixed end portion fixed to a drain pipe portion 3 extending from a bowl 1 and trap means 6 having a free end portion which is made rotatable in up-down direction by the transmission of a rotating force from a drive source through clutch means 13 is arranged in a drainage. Spring means are equipped in such a manner that a spring returning force rotating the free end portion in upper direction can be applied to the trap means 6, coupling with clutch means 13 is released when drive source operation is not possible, the free end portion is rotated in the upper direction by the returning force of a spring of the spring means, and the sealing water trap by the trap means is formed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flush toilet. More specifically, the present invention provides a new method that can reliably form and seal a water sealing trap by a trap means when a power outage occurs, and can secure reservoir water to maintain sanitary safety. It concerns flush toilets.

[0002]

2. Description of the Related Art Conventionally, various types of flush toilets having various structures and structures have been provided for flush toilets installed in toilets of houses and the like. Toilets are known. In this mechanical flush toilet, filth is discharged by operating the movable trap means once with a drive source such as a motor for each discharge. Then, after the movable trap means completes the draining operation and returns to the initial position to form a water-sealing trap, water is supplied to the toilet by the solenoid valve so that the water-sealing amount is ensured.

[0003]

However, in the case of such a mechanical flush toilet, if a power failure or the like occurs before the movable trap means returns to the initial position, the drive source becomes inoperable, and the movable trap means becomes inoperable. There was a problem that the water stopped at the position at the time of the occurrence of the power failure and no water trap was formed, and it was not possible to secure the stored water without water sealing.

[0004] Even if a water sealing trap is formed, water supply may not be performed if the solenoid valve is stopped. The invention of this application has been made in view of the above circumstances, and even when the power supply is stopped due to the occurrence of a power failure, the trap means is operated to form a water-sealing trap so that the water is reliably sealed. It is an object of the present invention to provide a new flush toilet capable of retaining water and maintaining sanitary safety.

[0005]

The present invention solves the above-mentioned problems by providing a fixed end fixed to a drain pipe extending from a bowl and a rotational force from a driving source via a clutch means. In a flush toilet provided with a trapping means having a free end which is transmitted and transmitted and is rotatable in the vertical direction in a flush toilet, a spring return force for rotating the free end upward is applied to the trapping means. When the drive source cannot be operated, the coupling between the drive source and the clutch means is released, and the free end rotates upward due to the spring return force of the spring means. A flush toilet characterized by the fact that is formed.

Further, the invention of this application has a fixed end fixed to a drain pipe extending from a bowl, and a free end rotatable in a vertical direction by transmitting a rotational force from a driving source via a clutch means. A flush toilet in which a trap means having an end portion is disposed in the drainage channel, provided with a power supply stop detection circuit and a standby power supply, and in accordance with detection of power supply stop to the drive source by the power supply stop detection circuit. , The drive source switches to the power supply from the standby power supply,
The rotating force is transmitted to the trap means, the free end rotates upward, and a water-sealing trap is formed by the trap means. A flush toilet characterized by being provided with an electromagnetic valve for controlling water supply and a bypass valve for controlling water supply to the bowl and the water sealing trap when the electromagnetic valve is inoperable.

Further, the invention of this application is a new technical means in the flush toilet described above, in which the connection between the drive source and the clutch means is manually released and the operation of the bypass valve is manually performed. provide.

[0008]

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

[0009]

(Embodiment 1) FIGS. 1 and 2 illustrate a flush toilet during a discharging operation and a water sealing operation, respectively, according to an embodiment of the present invention. For example, in the examples shown in FIGS. 1 and 2, a drain pipe portion (3) extends from the inner drain port (2) at the bottom of the bowl (1) toward the rear of the toilet bowl. A trap means (6) is provided between the end of the toilet and the outer discharge port (5) at the bottom of the toilet connected to the external drain pipe (4).

[0010] The trap means (6) is formed of, for example, a bellows-like hose which can expand and contract and can be bent, and further has a case body (8) having an internal space communicating with the outer discharge port (5). Is housed. There is no particular limitation on the material of the hose (7), and an appropriate material having elasticity, such as resin and rubber, which can be expanded and contracted and bendable without bending, can be used.

The inner drain port (2), the drain pipe section (3), the trap means (6), the case body (8) and the outer drain port (5) form a drain channel of a flush toilet. . One end of a hose (7) provided in the drainage channel as the trap means (6) is connected to the end of the drainage pipe (3) and is a fixed end.

More specifically, for example, the fixed end of the hose (7) is inserted into the end of the drain pipe (3), and is fixed, for example, by fastening it from the outer periphery with a hose band or the like. An opening substantially equal to the outer diameter of the hose (7) is provided at the end of the drain pipe (3) in the case body (8), and the drain pipe (3) is connected to the hose through this opening. A drainage space communicating with (7) is formed.

On the other hand, the other end of the hose (7) is a free end, and is rotatable in the upward direction shown in FIG. 1 and the downward direction shown in FIG. Specifically, in this embodiment, a support member (9) is fixed to the free end of the hose (7), and the support member (9) is connected to the hose (7) as illustrated in FIG. It is connected to one end of a pair of arms (10a) (10b) symmetrically arranged outside of (7). The other ends of the arms (10a) and (10b) are connected to rotatable rotation shafts (11a) and (11b) which are coaxially disposed on the side surface of the case body (8) and are rotatable. Further, a motor (as a driving source) is connected to the rotating shafts (11a) and (11b) via a clutch means (13) including a first gear (14), a second gear (15), and a transmission rod (16). 12) is connected.

With such a configuration, the rotational force generated by the motor (12) is transmitted through the clutch means (13), that is, the rotation of the first gear (14) is transmitted through the second gear (15) to the shaft ( 16) and transmitted to the rotating shaft (11a) (1
1b), the rotating shafts (11a) (11b) rotate smoothly, and this rotation is transmitted to the arms (10a) (10b) and the support member (9), and the free end of the hose (7) Rotates up and down. Since the motor (12) generates a forward rotation force and a reverse rotation force, the forward rotation force and the reverse rotation force respectively correspond to the downward rotation and the upward rotation.

Further, according to the present invention, in the flush toilet described above, a spring as spring means is always applied to the trap means (6) so as to always apply a spring return force for rotating the free end of the hose (7) upward. (17) is provided. The spring (17) is provided, for example, with its both ends fixed to a support member (18) provided to protrude from one end of the transmission rod (16) and the side wall of the case body (8), respectively. When the free end of the hose (7) is positioned upward as illustrated in FIG. 1, the hose (7) is in a contracted initial state, and as illustrated in FIG. When it is positioned in the direction, it is in a stretched state and always provides a spring return force to rotate the free end of the hose (7) upward.

For example, the flush toilet of the present invention having the above-described configuration operates as follows when waste is discharged.
The free end of the hose (7) is normally oriented upwards, forming a water trap. For this reason, water is stored inside the bowl (1) at a height up to the free end and sealed.

When the toilet flush is switched on after the stool,
The bowl (1) is supplied with washing water for washing the bowl surface in the conventional manner. After a few seconds, for example, the motor (1
2) operates. At this time, the motor (12) rotates forward, and the forward rotation rotates the clutch means (13) as described above.
Rotation shaft (11a) (11b), arm (10a) (10
The free end of the hose (7) rotates downward by transmission through b) and the support member (9). Then, when the free end of the hose (7) faces the outer discharge port (5), the motor (12) stops and the waste is discharged together with the stored water.

After a while, when the waste is completely discharged, the motor (12) rotates in the reverse direction, the free end of the hose (7) rotates upward and reverses upward, and the water sealing trap is again turned on. It is formed. Then, water is stored inside the bowl (1) and sealed. As described above, the rotating force by the motor (12) is indispensable for the discharging operation and the water sealing operation.

However, if a power failure occurs,
When the motor (12) as a driving source is not supplied with power and becomes inoperable, and the free end of the hose (7) is directed downward, the water sealing operation is performed without forming a water sealing trap. Will be left without. Therefore, in such a case, the spring (17) as a spring means can be operated to rotate the free end of the hose (7) upward.

Specifically, in this embodiment, when the power supply is stopped due to a power failure or the like, the coupling between the second gear (15) and the transmission rod (16) in the clutch means (13), that is, the motor (12) The connection with the clutch means (13) is released. Then, the transmission rod (16) is moved to the second gear (1).
By changing from 5) to the free state, the spring (17) in the expanded state contracts and returns to the initial state, and the transmission rod (16) rotates by the spring return force of the spring (7) at that time, This rotation is transmitted to the arms (10a) (10b) and the support member (9) via the rotation shafts (11a) (11b), and the free end of the hose (7) is forcibly rotated upward. You.

As described above, in the flush toilet of the present invention, even when the drive source such as the motor (12) cannot be operated due to a power failure or the like, the free end of the hose (7) is fixed by the spring means such as the spring (17). By rotating it upward, the formation of the water sealing trap can be surely performed, and the reserved water can be secured. The disconnection between the motor (12) and the clutch means (13) is automatically performed when the power supply is stopped due to a power failure or the like, for example, when the clutch means (13) is an electromagnetic type. It may be configured such that a user or the like can manually perform the operation.

(Embodiment 2) Although the spring means is provided in the embodiment 1 in order to secure the water sealing operation of the flush toilet when the power supply is stopped due to a power failure or the like, the flush toilet of the present invention has the power supply. A stop detection circuit and a backup power supply may be provided. 4 (a) and 5 (a) (b)
Normal power supply path in the power supply system, FIG. 4 (b)
FIG. 5C is a circuit diagram illustrating a power supply path at the time of a power failure in the power supply system.

Normally, FIGS. 4A and 5A
As illustrated in (b), a motor (12) as a driving source is supplied with power from a DC power supply circuit (19). When a power failure occurs, a power supply stop detection circuit (not shown) is provided.
Detects the stop of the power supply to the motor (12) due to the occurrence of a power failure or the like, and according to this detection, FIG.
As illustrated in (c), for example, the switches S1, S2, and S3 disposed on the power supply path perform a path switching operation, and the backup capacitor (20) provided as a standby power supply (for example, a capacity of 6800 μF) The power supply is switched from The power supply from the standby power supply is performed in a direction in which the motor (12) is rotated in the reverse direction, and the reverse rotation of the motor (12) causes the free end of the trap means such as the hose (7) to move upward as described above. It rotates back to its initial position and a water trap is formed.

As a backup power source, for example, a backup battery can be used in addition to the backup capacitor (20). Of course, in the flush toilet of the present invention, the spring means, the power supply stop detection circuit, and the standby power supply as described in each of the first and second embodiments can be provided together. The water sealing operation can be performed more reliably by the two methods of the return of the trap means to the initial position by the means and the operation of the drive source by the power supply stop detection circuit and the standby power supply.

(Embodiment 3) By the way, when the power supply is stopped due to a power failure or the like, even if the free end of the trapping means is forcibly rotated upward as described above to form the water sealing trap, If the solenoid valve that controls water supply to the water sealing trap does not operate, water will not be supplied,
There is a possibility that accumulated water cannot be secured.

In the flush toilet of the present invention, in order to cope with such a case, as shown in FIG. 6, as a valve for controlling water supply, in addition to the solenoid valve (21), a bypass valve (2) is used.
2) can also be provided in parallel with, for example, the solenoid valve (21). A water pipe is connected via an electromagnetic valve (21) to a rim portion (23) provided along the entire periphery of the upper end edge of the bowl (1). ) Is open and the water from the water pipe is
As illustrated in (b), the water flows to the bowl (1) after being stored to some extent in the rim portion (23). At this time, the bypass valve (22) is in a closed state. When the power supply is stopped, the electromagnetic valve (21) remains closed, so that the water supply control is switched to be performed by opening and closing the bypass valve (22). Thereby, water supply can be performed reliably, and reserved water is secured. The opening and closing of the bypass valve (22) can be arbitrarily performed manually by a user or the like, for example.

In the flush toilet of the present invention, the amount of water stored in the rim portion (23) is set to three as required for sealing water as preliminary water supply control performed before the water supply operation by the bypass valve (22). Alternatively, water may be supplied to the bowl (1) with a certain delay by using a time lag, so that the pool water is secured. Alternatively, the solenoid valve (21) may be controlled to be kept open for a certain period of time by using, for example, a standby power supply. By such preliminary water supply control, it becomes possible to secure the reservoir water without operating the bypass valve (22) for a short-time power failure. Furthermore, it is possible to control so that a fixed amount of automatic water supply is forcibly performed when the power is restored.

By the way, the solenoid valve (21) as described above
A control block (24) having a control circuit and the like for performing various controls such as water supply control including opening and closing of the water supply, discharge control and discharge control including starting of a drive source, and the like, as illustrated in FIGS. It is preferable to assemble above the case body (8) forming the drainage channel. As a result, it is possible to reduce the number of components of the control part and to save space as compared with a conventional flush toilet in which the control circuit and the like are provided separately from the discharge mechanism unit. When the case body (8) is made of resin, it can be fixed by screws with a tapping screw or the like, and the trouble of attaching to the ceramic surface is eliminated.

Of course, the present invention is not limited to the above-described example, and it goes without saying that various embodiments are possible in detail.

[0030]

As described above in detail, according to the present invention, even when the power supply is stopped due to a power outage or the like, the water sealing operation can be reliably performed by forming the water sealing trap by the trap means. There is provided a new flush toilet that can reliably supply water to secure reservoir water and thus constantly maintain sanitary safety.

[Brief description of the drawings]

FIG. 1 is a main part configuration view illustrating a flush toilet at the time of a discharging operation according to an embodiment of the present invention as viewed from a side.

FIG. 2 is a main part configuration diagram illustrating a flush toilet at the time of a water sealing operation according to an embodiment of the present invention as viewed from a side.

FIG. 3 is a main part configuration diagram illustrating a drainage channel portion in the flush toilet at the time of a water sealing operation as viewed from a rear surface.

FIGS. 4 (a) and 4 (b) are circuit diagrams conceptually illustrating power supply paths in a flush toilet according to the present invention during normal operation and during a power outage, respectively.

FIGS. 5A, 5B, and 5C conceptually show an example of a power supply path from a DC power supply circuit in a normal state and a power supply path from a standby power supply in a power outage in the flush toilet of the present invention, respectively. FIG.

FIG. 6 is a conceptual diagram illustrating a solenoid valve and a bypass valve in the flush toilet of the present invention.

FIGS. 7A and 7B are a plan view and a side view conceptually illustrating the flow of water supply in the flush toilet of the present invention, respectively.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bowl 2 Inner drainage port 3 Drainage pipe part 4 External drainage pipe part 5 Outer drainage port 6 Trap means 7 Hose 8 Case body 9 Support member 10a, 10b Arm 11a, 11b Rotary shaft 12 Motor 13 Clutch means 14 First gear 15th Two gear 16 Shaft 17 Spring 18 Support member 19 DC power supply circuit 20 Backup capacitor 21 Solenoid valve 22 Bypass valve 23 Rim section 24 Control block

Claims (5)

[Claims] 1. A trap having a fixed end fixed to a drain pipe extending from a bowl, and a free end rotatable in a vertical direction by transmitting rotational force from a driving source via a clutch means. In a flush toilet provided with a means in a drainage channel, a spring means is provided so that a spring return force for rotating the free end upward is applied to the trap means, and when the drive source cannot operate, the drive source and the clutch means are provided. And the free end is rotated upward by the spring return force of the spring means to form a water sealing trap by the trap means. 2. The flush toilet according to claim 1, wherein the connection between the drive source and the clutch means is manually released. 3. A trap having a fixed end fixed to a drain pipe extending from a bowl, and a free end rotatable in a vertical direction by transmitting rotational force from a driving source via a clutch means. In a flush toilet provided with a means in a drainage channel, a power supply stop detection circuit and a standby power supply are provided, and the power supply from the standby power supply is detected in accordance with the detection of the power supply stop to the drive source by the power supply stop detection circuit. A flush toilet characterized by switching to supply, operating a drive source, transmitting rotational force to the trap means, rotating the free end upward, and forming a water sealing trap by the trap means. 4. A flush toilet provided with an electromagnetic valve for controlling water supply to a bowl and a water sealing trap, wherein a bypass valve for controlling water supply to the bowl and the water sealing trap when the electromagnetic valve is inoperable. A flush toilet characterized by that. 5. The flush toilet of claim 4, wherein the operation of the bypass valve is performed manually.