JPH0583077U - Flush toilet bowl - Google Patents

Abstract

(57) [Summary] [Purpose] To reduce costs and improve workability. [Structure] Toilet bowl 11 provided with trap type drainage channel 12
And a flush water tank 14 having a built-in float valve 15, an on-off valve 13 is disposed in the drainage path 12 on the downstream side of the trap portion 12d, and the on-off valve 13 and the float valve 15 are connected by an operation cable 22. However, the operation cable 22 has a length that operates the opening / closing valve 13 to the closing side as the float valve 15 floats, and operates the opening / closing valve 13 to the opening side as the float valve 15 descends.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an improvement of a flush toilet to start draining and reduce the amount of flush water used when the amount of water in the toilet bowl of the flush toilet reaches a predetermined amount.

[0002]

[Prior Art]

 Conventionally, as a flush toilet of a flush water saving type, there is one described in Japanese Patent Laid-Open No. 1-287330. As shown in FIG. 5, the flush toilet is provided with a control valve 3 for adjusting the opening of the drainage channel 2 of the siphon toilet 1, and the amount of flush water supplied from the flush water supply means 4 into the toilet bowl 1a. A water amount detecting means 5 for detecting and a control means 6 for driving the regulating valve 3 are provided. When the control means 6 receives an electric signal for starting cleaning from the operation switch 7, the control means 6 drives the control valve 3 to the closing side to supply the cleaning water, and the amount of water in the toilet bowl 1a based on the output signal of the water amount detection means The electric circuit is configured to drive the control valve 3 to the open side to perform drainage when a predetermined amount (the amount that can fill the siphon portion 1b of the toilet bowl 1) is reached.

In the control valve 3, a cylindrical valve body 3b made of a rubber material is provided inside a substantially barrel-shaped cylindrical body 3a, and the upper and lower ends of the valve body 3b are closely attached to the cylindrical body 3a. I am doing it. The control valve 3 is configured such that the operation water is caused to flow in or out between the cylindrical body 3a and the valve body 3b by the electromagnetic three-way valve 8. The three-way valve 8 is driven by the control means 6. The control valve 3 is opened when the operation water is introduced by the three-way valve 8 and the valve body 3b is expanded in the radial direction of the tubular body 3a to be closed, and when the operation water is discharged, it is opened.

In the flush toilet having the above-mentioned configuration, by closing the control valve 3 at the start of flushing, the flush water is drained before the siphon portion 1b of the flush toilet 1 is filled with flush water. It is possible to save the wash water by preventing the water from flowing out to 2.

[0005]

However, the flush toilet has the drawback of increasing the apparatus cost because it requires the three-way valve 8 for controlling the water amount detecting means 5 and the regulating valve 3 and the controlling means 6. Furthermore, the flush toilet has the drawback of increasing the labor of construction because it is necessary to provide the water amount detecting means 5 in the water supply passage. An object of the present invention is to provide a flush toilet bowl of a flush water saving type which can reduce cost and improve workability in order to solve the above problems.

[0006]

[Means for Solving the Problems]

 The means adopted by the present invention is a flush toilet having a flush toilet provided with a trap-type drainage channel and a flush water tank having a built-in float valve, and the drain side is located downstream of the trap section. An on-off valve is installed in the valve, the on-off valve and the float valve are connected by an operation cable, and the operation cable operates the on-off valve to the close side as the float valve floats, and the float valve The length is such that the on-off valve can be operated to the open side as is lowered.

[0007]

[Action]

 When the float valve floats due to the cleaning operation of the cleaning water tank, it opens and closes the on-off valve via the operation cable. The on-off valve closes the lower side of the trap section of the drainage channel to raise the water level in the toilet bowl. When the float valve descends with the outflow of wash water in the wash water tank, it opens and closes the on-off valve via the operation cable. The on-off valve opens and opens the downstream side of the trap section of the drainage channel, and the wash water in the toilet bowl of the toilet bowl is discharged into the drainage channel along with the dirt.

[0008]

【Example】

 Hereinafter, a flush toilet bowl according to the present invention (hereinafter referred to as "main toilet bowl") will be described based on an embodiment shown in the drawings. (First Embodiment) FIGS. 1 and 2 show a first embodiment of the toilet bowl of the present invention. The toilet bowl 10 of the present invention includes a toilet bowl 11 and a flush water tank 14 for supplying flush water to the toilet bowl 11.

The toilet bowl 11 is provided with a siphon type drainage channel 12, and an opening / closing valve 13 is disposed downstream of the siphon section 12a. The on-off valve 13 is of a butterfly type or the like in which the pipe wall portion 12b forming the drainage channel 12 is swingably supported on the pipe wall portion 12b and the like. If it can be opened, the wash water W in the toilet bowl 11a can be discharged together with the dirt.

The cleaning water tank 14 includes a valve seat 16 communicating with the cleaning water passage 11 b of the toilet 11, a float valve 15 seated on the valve seat 16, an operation lever 17 for pulling up the float valve 15, and an operation lever. A chain 18 connecting the swinging tip 17a of the lever 17 and the float valve 15 and an overflow pipe 19 communicating with the flush water passage 11b of the toilet 11 are provided. A stopper ring 20 is attached to the overflow pipe 19 to regulate the upper limit of floating of the float valve 15.

The bottom portion of the float valve 15 and the tip of the on-off valve 13 are connected by an operation cable 22. The operation cable 22 is stretched at appropriate places such as the flush water passage 11c, the cable passage 11d and the siphon portion 12a of the toilet bowl 11, and is turned by the guide rings 21 and 21. As shown in FIG. 2, the operation cable 22 is designed to be appropriately loosened when the float valve 15 is seated on the valve seat 16. The operation cable 22 operates the opening / closing valve 13 to the closing side as the float valve 15 floats as shown in FIG. 1, and operates the opening / closing valve 13 to the opening side as the float valve 15 descends to open / close the valve. The length is such that the float valve 15 can be further lowered even if the valve 13 is completely opened. The operation cable 22 is not limited to a single wire type, and although not shown, use an outer cable with an inner cable inserted, and connect the float valve 15 and the on-off valve 13 with the inner cable. Is also possible.

Next, the operation of the toilet bowl 10 of the present invention will be described. The washing water tank 14 is automatically filled with washing water W from a ball tap (not shown) into the tank, and is filled with water as shown in FIG. In this state, since the opening / closing valve 13 is open, the flush toilet 11 has flush water only in the trap portion 12d. When the user turns the operation lever 17 in the direction of arrow A, the float valve 15 is lifted by a predetermined size and at the same time, the float valve 15 instantly floats by its own buoyancy, and the position of the stopper ring 20 is changed as shown in FIG. Stop at. The float valve 15 raises the opening / closing valve 13 via the operation cable 22 to immediately close the valve due to the instantaneous floating. The flush water tank 14 opens the valve seat 16 by the float of the float valve 15 and discharges the flush water W in the tank to the flush water passage 11c of the toilet bowl 11.

When flush water is supplied to the toilet bowl 11 with the on-off valve 13 closed, the flush portion 12a is filled with flush water. The residual air in the siphon portion 12a is discharged through a thin tube (not shown) that connects the ceiling portion 12a-1 of the siphon portion 12a and the drainage downstream 12c. The on-off valve 13 automatically opens to induce a siphon action when the water pressure received from the siphon portion 12a becomes larger than the buoyancy of the float valve 15 as the siphon portion 12a is filled with water. When the siphon action is induced, the wash water in the toilet bowl 11a of the toilet bowl 11 is forcibly discharged to the drainage channel 12 together with the waste.

The float valve 15 maintains the discharge of the wash water remaining without seating on the valve seat 16 because the operation cable 22 is slack even when the opening / closing valve 13 is completely opened. Wash water is replenished to the discharged trap portion 12d. The float valve 15 finally sits on the valve seat 16 to stop the discharge of the wash water and store the wash water in the tank.

(Second Embodiment) FIGS. 3 and 4 show a second embodiment of the toilet bowl of the present invention. The toilet bowl 30 of the present invention includes a toilet bowl 31 and a flush water tank 14 for supplying flush water to the toilet bowl 31.

The toilet bowl 31 is provided with a trap-type drainage channel 32, and an opening / closing valve 33 is disposed downstream of the trap portion 32d. The on-off valve 33 is of a butterfly type or the like in which a wall portion 32b forming the drainage channel 32 is swingably supported on the wall portion 32b and the like. When closed, the water level WL in the trap portion 32d can be raised and when opened, The washing water in the toilet bowl 31a can be discharged together with the dirt. Since the cleaning water tank 14 has the same structure as that of the first embodiment, its description is omitted here.

The bottom portion of the float valve 15 of the wash water tank 14 is connected to an appropriate place such as the tip of the on-off valve 33 by an operation cable 42. The operation cable 42 is stretched around appropriate places such as the flush water channel 31c and the trap portion 32d of the toilet bowl 31 and is turned around by the guide rings 21 1, 21. As shown in FIG. 4, the operation cable 42 is designed to be appropriately loosened when the float valve 15 is seated on the valve seat 16. As shown in FIG. 3, the operation cable 42 operates the opening / closing valve 33 to the closing side as the float valve 15 floats, and operates the opening / closing valve 33 to the opening side as the float valve 15 descends. Even if the open / close valve 33 is completely opened, the float valve 15 can be further lowered.

Next, the operation of the toilet bowl 30 of the present invention will be described. The washing water tank 14 is filled with the washing water W from a ball tap (not shown) into the tank automatically, and is filled with water as shown in FIG. In this state, since the opening / closing valve 33 is open, the water level WL of the trap portion 32d of the toilet bowl 31 is low. When the user turns the operation lever 17 in the direction of arrow A, the float valve 15 is lifted by a predetermined dimension and at the same time, the float valve 15 is instantly floated by its own buoyancy, and as shown in FIG. Stop at the position. The float valve 15 raises the opening / closing valve 33 via the operation cable 42 to immediately close the valve, in accordance with this instantaneous floating. The flush water tank 14 opens the valve seat 16 by floating of the float valve 15 and discharges the flush water W in the tank to the flush water passage 31c of the toilet bowl 31.

When flush water is supplied with the opening / closing valve 33 closed, the toilet bowl 31 raises the water level WL of the trap portion 32d to expand the flush area of the toilet bowl 31a. The residual air in the trap portion 32d closed by the open / close valve 33 is discharged through a thin tube (not shown) that connects the ceiling portion 32d-1 of the trap portion 32d and the drainage downstream 32c. The on-off valve 33 automatically opens and drains when the water pressure received from the trap portion 32d becomes larger than the buoyancy of the float valve 15 due to the filling of the trap portion 32d. The cleaning water in the toilet bowl 31a of the toilet bowl 31 is forcibly discharged to the drainage channel 32 together with the waste.

The float valve 15 maintains the discharge of the wash water remaining without sitting on the valve seat 16 because the operation cable 42 is slack even when the opening / closing valve 33 is completely opened, and the trap valve Cleaning water is supplied to the portion 32d. The float valve 15 finally sits on the valve seat 16 to stop the discharge of the wash water.

Other Embodiments The lifting of the float valve 15 is not limited to the manual operation lever 17. That is, although not shown, the operation lever may be one in which the lever is fixed to the rotation output shaft of an electric drive tool using a solenoid or the like.

[0022]

[Effect of the device]

 As described above in detail, the toilet bowl of the present invention can improve the workability because it does not modify the water supply system, and reduces the cost because it does not require the water amount detection means and control means that were required in the past. Has a practical effect that can.

[Brief description of drawings]

FIG. 1 is a longitudinal sectional view showing a first embodiment of the present invention, showing a state in the middle of cleaning.

FIG. 2 is a vertical cross-sectional view showing a first embodiment of the present invention and showing a state before cleaning.

FIG. 3 is a vertical cross-sectional view showing a second embodiment of the present invention and showing a state in the middle of cleaning.

FIG. 4 is a longitudinal sectional view showing a second embodiment of the present invention before cleaning.

FIG. 5 is a view showing a conventional flush toilet bowl, which is a cross-sectional view of a main part thereof.

[Explanation of symbols]

 11 (31) ... Toilet bowl 12 (32) ... Drainage channel 12d (32d) ... Trap part 13 (33) ... Open / close valve 14 ... Wash water tank 15 ... Float valve 16 ... Valve seat 22 (42) ... Operation cable

Claims (1)

[Scope of utility model registration request] 1. A flush toilet having a flush toilet provided with a trap type drainage channel and a flush water tank having a built-in float valve, wherein an opening / closing valve is arranged downstream of the trap section in the drainage channel. The operation valve connects the on-off valve and the float valve with an operation cable, and the operation cable operates the on-off valve to the closing side as the float valve floats, and the float valve descends. A flush toilet bowl characterized in that the opening / closing valve is operated to the open side.