JPH0634453Y2 - Automatic toilet cleaning device - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a cleaning device that supplies cleaning water to the toilet side by pulling up a float valve with a solenoid, and the solenoid is turned off at a predetermined water level or less. The present invention relates to a toilet bowl automatic cleaning device which is kept in place to prevent the flush water from being supplied to the toilet side to prevent clogging of the drainage passage.

[Conventional technology]

A conventional toilet automatic cleaning device using a solenoid is shown in a vertical sectional front view of FIG. 3 and a vertical sectional side view of FIG. As shown in the figure, in the conventional cleaning device B, a cleaning tank 2 for storing cleaning water is installed on the rear upper surface side of the toilet body 1. A ball tap 4 for controlling the supply of cleaning water into the tank by floating balls 3 is attached to the upper surface side inside the cleaning tank 2. Ball tap 4
Is connected to a water main or the like via a supply pipe 5 or the like. An opening communicating with the flush water inflow path 6 of the toilet body 1 is formed at the bottom of the wash tank 2, and a float valve 7 is installed in the opening. The float valve 7 includes a rotary solenoid 14 and an operating handle 10 via a chain 8.
It is connected to the. The rotary solenoid 14 is installed on the step portion 15 formed on the outer surface of the upper portion of the cleaning tank 2, and the operation handle 10 is provided on the outer surface of the external tank 9.
It is attached to the rotary shaft of the rotary solenoid 14. When the rotary solenoid 14 is in the non-excited state, the operation handle 10 can be freely rotated.
The external tank 9 is for preventing the condensed water from adhering to the external surface of the cleaning tank 2 due to the difference between the temperature of the toilet room and the temperature of the cleaning water.

Now, when the washing switch (not shown) is turned on in the toilet flushing, the rotary solenoid 14 is excited and the float valve 7 is separated from the cylindrical valve seat 11 via the chain 8. As a result, the float valve 7 starts to float due to its own buoyancy, engages with the donut-shaped floating prevention ring 13 attached to the overflow pipe 12, and stops at that position. For this reason, the inside of the wash tank 2 and the wash water inflow path 6 of the toilet body 1 are in communication with each other, and the wash water in the tank flows out to the toilet side. For reference, the flush water flowing out to the toilet side reaches the rim water channel 14 from both sides of the toilet body 1 (not shown in FIGS. 3 and 4) from the flush water inflow channel 6. It is discharged from the outflow hole 15 into the toilet bowl 16 to clean the inner surface of the toilet bowl 16. At the same time, the waste in the toilet bowl 16 is allowed to flow into the drainage passage 17.

When the water level of the wash water in the wash tank 2 drops,
Along with that, the float valve 7 descends, and the float valve 7 is eventually pulled by the washing water flowing through the valve seat 11 to cause the valve seat to move.
Sit to 11. That is, the supply of flush water from the tank to the toilet side is stopped. Further, as the water level of the wash water decreases, the floating ball 3 descends, and the ball tap 4 is opened. Therefore, new cleaning water is supplied from the ball tap 4 into the cleaning tank 2, and the water level is gradually recovered. When the water level reaches a predetermined level, the floating ball 3 closes the ball tap 4 and stops the supply of washing water into the tank.

When the rotary solenoid 14 cannot be used due to a power failure or the like, it is possible to manually operate the operation handle 10 to pull up the float valve 7 to wash the toilet bowl.

[Problems to be solved by the device]

However, by turning on the washing switch, the rotary solenoid
When the toilet bowl is automatically washed by exciting 14 and pulling up the float valve 7, if the two washing operations of the artificial sound washing and the main washing are performed within a short time, the second washing There was a case where the amount of washing water was insufficient at the time of washing, and dirt was clogged in the drainage passage 17 of the toilet body 1. That is, if the toilet bowl is washed in order to discharge the waste in a low water level state where the water level in the wash tank 2 is not sufficiently restored, it is not possible to supply sufficient wash water to the toilet side, and the waste is discharged from the drain passage 17 It was placed in the middle of a car and could cause a jam.

[Means for Solving the Problems]

The present invention has been improved and removed in view of the above-mentioned drawbacks of the related art, and prevents the float valve from being lifted up by a solenoid when a sufficient level of washing water is not secured, thereby clogging the drainage passage. It is an object of the present invention to provide an automatic toilet bowl cleaning device for preventing the above.

Thus, the means adopted by the present invention to solve the above-mentioned problems is an apparatus for cleaning the toilet bowl by supplying the cleaning water in the cleaning tank to the toilet side by operating the solenoid and pulling up the float valve. During the wiring connecting the solenoid and the power supply side, the level of the washing water in the washing tank is detected, and when the detected water level is below a predetermined level, the operation to the solenoid side is shut off and the washing water in the washing tank is shut off. There is a water level detection switch that keeps the water supply to the toilet bowl stopped.

[Action]

The present invention detects the water level in the cleaning tank by, for example, a float switch or an ultrasonic sensor. And
A water level detection switch that is ON / OFF controlled by these output signals is provided in the middle of the wiring between the power supply side and the solenoid. When the detected water level is below a predetermined level, this water level detection switch maintains the OFF state and shuts off the energization to the solenoid. Therefore, when the water level in the washing tank is not sufficiently secured, the solenoid for pulling up the float valve is held in a non-excited state, and the toilet bowl is not washed even if the washing operation is performed.

〔Example〕

The structure of the present invention will be described below with reference to the embodiments shown in the drawings. The same reference numerals as in the conventional case are the same members.

FIG. 1 is a vertical sectional front view of a toilet bowl showing an automatic cleaning device A according to an embodiment of the present invention, and FIG. 2 is an electric circuit diagram of a solenoid 14. As shown in FIG. 1, in this embodiment, the float switch 16 is installed on the inner surface side of the cleaning tank 2. The float switch 16 has a float 18 attached to a guide bar 17 so as to be able to move up and down. The float 18 moves up and down according to the water level of the wash water, and when the water level is below a predetermined level, the magnet embedded in the float 18 will cause the guide bar to move.
The reed switch in 17 is turned on. The float switch 16 which outputs ON / OFF of the reed switch is a relay switch (water level detection switch) provided in the middle of wiring connection between the solenoid 14 and the power source 19 side as shown in the electric circuit diagram of FIG. ) 20 is connected to the coil 21 so that the power supply to the coil 21 is intermittent.

Therefore, when the water level of the wash water in the wash tank 2 does not reach the predetermined water level, the float switch 16 is turned on and the coil
Energize 21. Therefore, the relay switch 20
It becomes F, and the power supply to the solenoid 14 side is cut off. That is, when the level of the flush water in the flush tank 2 is below a predetermined level, the solenoid 14 is kept in a non-excited state even if the flush switch 22 is operated for flushing the toilet, and the solenoid 14 automatically operates the flush toilet. Cleaning is never done. On the other hand, when the level of the cleaning water in the cleaning tank 2 exceeds the predetermined level, the float switch 16 is turned off and the coil 21 is de-energized so that the relay switch 20 is turned on. Therefore, when the cleaning switch 22 is turned on for cleaning the toilet, the solenoid 14 is energized, the float valve 7 is pulled up, and the toilet is cleaned.

As described above, in the present embodiment, when the water level of the wash water in the wash tank 2 is equal to or lower than the predetermined water level, the toilet 14 is never automatically flushed by the solenoid 14, resulting in a shortage of wash water and filth. Will not remain in the drainage passage 17 (see FIG. 4) and cause clogging.

By the way, the present invention is not limited to the above-described embodiments, but can be appropriately modified. For example, a float switch for detecting the level of wash water in the wash tank 2.
16 may be an ultrasonic sensor, a photoelectric detection sensor, or the like.

[Effect of the Invention] As described above, in the present invention, even if the cleaning switch is operated below the predetermined water level, the solenoid is kept in the OFF state so that the cleaning water is not supplied to the toilet side. When cleaning the toilet bowl, there is no possibility that the amount of flush water will be insufficient and dirt will be clogged in the drain passage of the toilet body.

[Brief description of drawings]

FIG. 1 is a vertical sectional front view of an entire toilet bowl showing an automatic cleaning device according to an embodiment of the present invention, FIG. 2 is an electric circuit diagram for controlling a solenoid, and FIG. 3 is a conventional automatic cleaning device. FIG. 4 is a vertical sectional front view of the entire toilet bowl, and FIG. 14 …… Solenoid, 7 …… Float valve 2 …… Washing tank, 1 …… Toilet body 16 …… Float switch 19 …… Power supply, 20 …… Relay switch

Claims (1)

[Scope of utility model registration request] 1. A device for cleaning a toilet bowl by supplying cleaning water in a cleaning tank to a toilet bowl by operating a solenoid and pulling up a float valve, in the middle of wiring connecting a solenoid and a power source A water level detection switch that detects the water level of the wash water in the tank, shuts off the operation to the solenoid side when the detected water level is below a predetermined level, and keeps the supply of the wash water in the wash tank to the toilet bowl stopped. An automatic cleaning device for toilet bowls.