JPH0362854B2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention eliminates the chain connecting the operating handle and the float valve, and provides a passage that bypasses the float valve and a flush water inflow passage of the toilet body, respectively. The present invention relates to a toilet bowl cleaning device that controls the supply of flushing water by controlling the opening and closing of a sub-valve and a main valve.

[Conventional technology]

If you look at conventional general toilet bowl cleaning devices, the 7th one is
This is as shown in the partial vertical cross-sectional side view of the figure and the partial vertical cross-sectional front view of FIG. As shown in the figure, in the conventional cleaning device D, a cleaning tank 2 for storing cleaning water is installed on the rear upper surface side of the toilet main body 1. The cleaning tank 2 has a ball tap 4 attached to its inner upper surface side for controlling the supply of cleaning water into the tank using a floating ball 3. ball tap 4
is connected to a water main etc. via a supply pipe 5 etc. Further, at the bottom of the cleaning tank 2, an opening is formed that communicates with the cleaning water inflow path 6 of the toilet main body 1, and a float valve 7 is installed in the opening. The float valve 7 has an operating handle 1 attached to the outer surface of an external tank 9 via a chain 8.
Connected to 0. The external tank 9 is provided to prevent condensed water from adhering to the external surface of the cleaning tank 2 due to the difference between the toilet room temperature and the cleaning water temperature.

Suppose now that the operating handle 10 is rotated to displace the float valve 7 from the cylindrical valve seat 11 via the chain 8. The float valve 7 starts to float due to its own buoyancy, engages with a donut-shaped floating prevention ring 13 attached to the overflow pipe 12, and stops at that position. As a result, the inside of the cleaning tank 2 and the cleaning water inflow path 6 of the toilet main body 1 are brought into communication, and the cleaning water in the tank flows out to the toilet side. For reference, the flushing water flowing out to the toilet side passes from the flushing water inflow channel 6 to the rim passageway 14 through both sides of the toilet main body 1 (not shown in FIGS. 7 and 8), and then flows through the rim passageway 14. It is discharged from the outflow hole 15 into the toilet bowl 16 and cleans the inner surface of the toilet bowl 16. At the same time, the waste in the toilet bowl 16 is made to flow out into the defecation passage 17.

When the water level of the cleaning water in the cleaning tank 2 decreases, the float valve 7 descends accordingly, and eventually seats on the valve seat 11 due to the drawing force of the cleaning water flowing through the valve seat 11. In other words, the supply of flush water from the tank to the toilet side is stopped. Further, as the water level of the washing 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 gradually recovers. When the water level reaches a predetermined level, the floating ball 3 closes the ball tap 4 and stops supplying cleaning water into the tank.

Thereafter, the above-described operations are repeated to clean the toilet bowl.

[Problem that the invention seeks to solve]

By the way, in the conventional general toilet bowl cleaning device D, as described above, the operating handle 10
and the float valve 7 are connected by a chain 8.
If the length of this chain 8 is short, the float valve 7 will remain unseated from the valve seat 11, and the wash water in the tank will be allowed to flow toward the toilet bowl. Therefore, the length of the chain 8 is usually made extra long to give the whole chain flex. However, if the chain 8 becomes too long, the entire chain 8 will swing when the handle is operated, causing the chain 8 itself to become entangled.
As the overall length became shorter, the float valve 7 was left unseated from the valve seat 11, causing the problem of poor water shutoff, which caused the wash water in the tank to flow freely.
The chain 8 may not only become entangled with itself, but may also become entangled with nearby members, which is a major problem.

In addition, in the case of cleaning equipment D that adopts a double tank system in which an external tank 9 is installed outside the cleaning tank 2 to prevent condensation in the cleaning tank 2, the cleaning tank 2 is usually made of synthetic resin, and the external tank 9 is installed outside the cleaning tank 2. The tank 9 is attached to the toilet bowl body 1 in order to eliminate the discomfort with the toilet bowl body 1.
It is also made of ceramic. In general, resin molded products have excellent dimensional accuracy, but ceramic products are subject to thermal expansion and contraction during high-temperature firing, resulting in considerable variation in dimensional accuracy. Therefore, the shaft hole 18 of the cleaning tank 2 for attaching the operating handle 10 is
This tends to cause positional errors with the shaft hole 19 of the external tank 9, making it sometimes impossible to attach the operating handle 10. This positional error between the shaft holes 18 and 19 is caused by the fact that the external tank 9 is placed on the rear upper surface 1a of the toilet main body 1, and the cleaning tank 2 is installed on the inner step 1b lower than the rear upper surface 1a. Another reason is that the reference positions are different.
Therefore, in the past, the shaft hole 19 on the side of the external tank 9 was set to be extra large for installation. However, if the shaft hole 19 is large, the appearance is poor, and a decorative screw or the like is required to hide it.

[Means for solving problems]

The present invention improves and eliminates the above-mentioned problems of the conventional art, and eliminates the chain for connecting the operation handle and the float valve. It is an object of the present invention to provide a toilet bowl cleaning device that is not affected by the dimensional accuracy of a tank.

The means adopted by the present invention to solve the above problems is that an opening communicating with the flushing water inflow path of the toilet bowl body is formed at the bottom of the cleaning tank, and a float installed in the opening is formed at the bottom of the cleaning tank. In a toilet cleaning device that controls the supply of flushing water to the toilet side by opening and closing a valve, a bypass that bypasses the float valve and communicates the interior of the flushing tank with the flushing water inflow path of the toilet bowl body. A passage is formed, a sub-valve is disposed in the bypass passage, and a main valve is disposed downstream of the bypass passage of the wash water inflow passage.

[Effect]

Now, when flushing the toilet, if you open the sub-valve of the bypass passage and close the main valve of the flush water inflow passage of the toilet body, the flush water in the tank will be supplied between the main valve and the float valve, filling it. . Therefore, the float valve leaves the valve seat due to its own buoyancy. In this state, when the sub-valve is closed and the main valve is opened, the wash water in the wash tank flows out to the toilet bowl side, and the toilet bowl is flushed. Then, when the wash water level in the tank decreases, the float valve seats on the valve seat in the same way as before.
Stop the supply of flush water to the toilet bowl.

In this way, the toilet bowl cleaning device of the present invention controls the supply of flushing water to the toilet bowl only by opening and closing the sub-valve and the main valve, and no chain is required to operate the float valve. . Therefore, there is no problem of poor water stoppage caused by entanglement of the chain. Further, there is no need to form a shaft hole for the operating handle in the cleaning tank and the external tank, and the attachment of the operating handle is not affected by the dimensional accuracy of both tanks.

〔Example〕

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure of the present invention will be described below based on embodiments shown in the drawings. Note that the same reference numerals as in the conventional case represent the same members.

1 and 2 show a cleaning device A according to a first embodiment of the present invention, FIG. 1 is a partial vertical cross-sectional front view showing the entire cleaning device A, and FIG. FIG. 2 is a partially enlarged view of FIG. 1; As shown in the figure,
In this embodiment, a bypass passage 21 is provided which bypasses the float valve 7 and communicates the interior of the cleaning tank 2 with the flush water inflow path 6 of the toilet main body 1. A sub-valve 22 is disposed in the bypass passage 21, and a main valve 23 is disposed downstream of the bypass passage 21 in the wash water inflow passage 6. 1 and 2, 24 and 25 are the sub valve 22 and the main valve 2.
Valve shafts 3, 26 and 27 are operating handles for the sub-valve 22 and main valve 23 attached to the outer surface of the toilet main body 1.

In the device A of the first embodiment configured as described above, the operation for flushing the toilet is first by turning the operating handles 26 and 27 to open the sub valve 22 and close the main valve 23. Make it. As a result, the cleaning water in the cleaning tank 2 begins to flow into the preliminary chamber 43 formed between the main valve 23 and the float valve 7 through the bypass passage 21, and eventually becomes full. When the preliminary chamber 43 is full, the float valve 7 rises due to its own buoyancy, engages with the floating prevention ring 13, and stops. Therefore, the inside of the cleaning tank 2 and the cleaning water inflow path 6 of the toilet main body 1 communicate with each other. In this state, when the operating handle 27 is operated to open the main valve 22, the flushing water in the tank is supplied from the flushing water inflow path 6 of the toilet bowl main body 1 to the toilet bowl side, and the inner surface of the toilet bowl is cleaned. be exposed.

Then, as the water level in the cleaning tank 2 decreases, the float valve 7 descends, and the float valve 7 is seated due to the drawing force of the cleaning water flowing inside the valve seat 11, as in the conventional case. As a result, the supply of flush water to the toilet side is stopped. In addition, bypass passage 2
The first sub-valve 22 may be closed before the float valve 7 is seated. Further, as the level of cleaning water in the tank decreases, cleaning water is supplied from the ball tap 4 into the tank, and when the water level returns to a predetermined level, the ball tap 4 is brought into a closed state by the floating balls 3. This is the same as the conventional case.

In this way, in the cleaning device A of this embodiment, by opening and closing the sub valve 22 and the main valve 23, the float valve 7 is removed from the valve seat 11 and the supply of flush water to the toilet side is started. This eliminates the need for a chain 8 for connecting the operating handle 10 and the float valve 7, as in the conventional device B shown in FIGS. 7 and 8. Therefore, there is no problem such as poor water stoppage due to entanglement of the chain 8. Further, it is not necessary to form the shaft holes 18 and 19 of the operating handle 10 in the cleaning tank 2 and the external tank 9, and the shaft hole 18
There is also no need to worry about the positional deviation of 19 and 19.

FIG. 3 is a partially longitudinal sectional front view showing the entire cleaning device B according to the second embodiment of the present invention. In this embodiment, the flush water inflow path 6 of the toilet main body 1 is
The main valve 28 disposed in the main valve 28 is of a shutter type that moves forward and backward by a solenoid 29. The main valve 28 is opened and closed by a switch 30 installed on the outer surface of the toilet main body 1.
This is done by turning on and off. The other configurations, functions, and effects are completely the same as those of the first embodiment, and their explanations will be omitted here.

FIG. 4 is a partial vertical cross-sectional front view of a cleaning device C according to a third embodiment of the present invention. In this third embodiment, the main valve 31 disposed in the wash water inflow path 6 of the toilet main body 1 is a flap type valve that is automatically reset by a counterweight 32. When the sub-valve 24 is opened and the preliminary chamber 43 is filled with cleaning water, the float valve 7 rises, and the load of the cleaning water in the cleaning water tank 2 and the cleaning water in the preliminary chamber 43 are applied to the main valve 31. The load acts. As a result, the main valve 31
It rotates clockwise in FIG. 4 about the fulcrum 33 and enters the open state. Therefore, the cleaning water in the cleaning tank 2 is supplied to the toilet bowl side. In addition,
The weight of the counterweight 32 is determined so that the main valve 31 can be kept closed only by the load of the wash water filling the preliminary chamber 43. The other configurations and effects are the same as in the first embodiment.

By the way, the present invention is not limited to the embodiments described above. For example, as shown in Figure 5,
A sub-valve 34 disposed within the bypass passage 21 (see Figs. 1 to 4) and a main valve 35 disposed within the wash water inlet passage 6 (see Figs. 1 to 4) of the toilet main body 1. and are respectively butterfly valves, the rotation angles of which are made different by 90 degrees in advance, and the gears 38 and 39 connected to the valve shafts 36 and 37 are rotationally controlled by the gear 41 connected to the operating handle 40. , the opening and closing of the sub valve 34 and the main valve 35 may be controlled. Also, as shown in Figure 6, the fifth
The rotation of the gear 41 shown in the figure may be controlled by a motor 42. In this case, it goes without saying that the most suitable motor 42 is one that has excellent angle control, such as a pulse motor. Furthermore, it is clear that the technique of the present invention is not affected by the shape, type, etc. of the toilet bowl.

〔Effect of the invention〕

As explained above, in the present invention, the float valve is moved to its valve seat by opening and closing the sub-valve placed in the passage that bypasses the float valve and the main valve placed in the wash water inflow path of the toilet main body. The user can then take the seat off the toilet and start supplying flush water to the toilet bowl. Therefore, there is no need for a chain to connect the operating handle and the float valve as in conventional cleaning devices, and accidents such as water stoppage failure due to entanglement of the chain are unlikely to occur. In addition, in the case of a double tank type, there is no need to form a shaft hole for the operating handle in each of the cleaning tank and the external tank, so there is no need to form a shaft hole for the operating handle in the cleaning tank and the external tank, so there is no need to form the shaft hole position due to variations in the dimensional accuracy of both tanks. There is no need to worry.

[Brief explanation of drawings]

1 to 6 are related to the present invention,
Fig. 1 is a partial longitudinal cross-sectional front view showing the entire device of the first embodiment, Fig. 2 is a partially enlarged view of Fig. 1 when the main valve is in the closed state, and Fig. 3 is the second embodiment. FIG. 4 is a vertical cross-sectional front view showing a part of the device of the third embodiment; FIGS. 5 and 6 are schematic diagrams showing the operating mechanisms of the sub-valve and the main valve. The perspective view, FIG. 7, and FIG. 8 are related to a conventional device. FIG. 7 is a partial vertical sectional side view showing the entire device, and FIG. 8 is a partial vertical sectional front view showing the entire device. It is. 2...Cleaning tank, 1...Toilet main body, 6...Cleansing water inflow path, 7...Float valve, 21...Bypass passage, 22, 34...Sub-valve, 23, 28, 3
1, 35... Main valve, A, B, C... Toilet bowl cleaning device.

Claims (1)

[Claims] 1. An opening that communicates with the flush water inflow path of the toilet bowl body is formed at the bottom of the flush tank, and the supply of flush water to the toilet bowl is controlled by opening and closing a float valve installed in the opening. In the toilet bowl cleaning device, a bypass passage is formed which bypasses the float valve and communicates the interior of the cleaning tank with the flush water inflow passage of the toilet main body, and a sub-valve is disposed in the bypass passage, and the flush water flows through the flush valve. A toilet bowl cleaning device characterized in that a main valve is disposed downstream of a bypass passage in an inflow passage.