JP2008019656A - Drain valve device for washing tank, its construction method, resistance piece for use therein, and method for adjusting amount of drained water - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a drain valve device capable of easily adjusting amount of water to be drained when draining washing water to save water, adjusting amount of water to be drained in accordance with capacity of a washing tank and situation at site properly, and being applied even to the compact washing tank without causing any trouble. <P>SOLUTION: In this drain valve device for the washing tank for draining washing water in the washing tank toward a toilet stool from a drain port in a bottom part 10 of the tank by opening a drain valve 18, a resistance piece 58 for generating resistance of water when closing the drain valve 18 is detachably and directly attached to the drain valve 18 itself to adjust amount of water to be drained by attaching or detaching the resistance piece 58. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a drainage valve device for a cleaning tank, a method for its construction, a resistance piece used therefor, and a method for adjusting the amount of drainage.

As a drain valve device for discharging flush water stored in the washing tank by opening the drain valve and cleaning the toilet bowl, there is conventionally known one as shown in FIG.
In the figure, reference numeral 200 denotes a cleaning tank, and a hand-washing basin 202 that also serves as a lid is provided on the upper part thereof. A hand-washing water discharge pipe 204 is provided upright from the hand-washing bowl 202.
Handwash water from the handwash water discharge tube 204 falls into the handwashing basin 202 and then falls into the washing tank 200 through a drain hole at the bottom of the handwashing basin 202.

Reference numeral 206 denotes a ball tap disposed inside the cleaning tank 200, which performs water supply and water supply stop in conjunction with the lifting and lowering of the floating ball 208.
That is, when the floating ball 208 is lowered, the valve portion of the ball tap 206 is opened and water is supplied into the cleaning tank 200 through the water discharge pipe 210.
On the other hand, as the water level W inside the cleaning tank 200 rises, the floating ball 208 rises, and when the water level W reaches the set full water level, the valve portion of the ball tap 206 is closed to stop water supply.

  From this ball tap 206, a water conduit made of a bellows tube (not shown) extends, and its tip is connected to the hand irrigation water tube 204. When water is supplied to the cleaning tank 200, the water irrigation water tube is also passed through this water conduit. Water is supplied to 204.

A drainage valve 216 made of a float valve is provided at the bottom of the cleaning tank 200, and the float valve body 216 rotates integrally with a cleaning handle 220 provided on the wall 200 </ b> A of the cleaning tank 200. The tip of the character-shaped action lever 222 is connected via a chain 224.
In this drain valve device, when the washing handle 220 is rotated, the drain valve 216 is lifted from the valve seat (tank side valve seat) 218 provided at the bottom of the tank and is opened. Here, the washing water in the washing tank 200 is opened. Is discharged to the toilet through the drain 226.

In the cleaning tank apparatus shown in FIG. 10, the up-and-down movement of the floating ball 208 is transmitted to the valve portion of the ball tap 206 via the interlocking arm 236, and the valve portion is opened and closed.
Thus, the floating ball 208 and the interlocking arm 236 are connected by the bolt 234, and the position of the floating ball 208 can be adjusted up and down by adjusting the screwing amount of the bolt 234 to the floating ball 208. .
Thus, the amount of wash water stored when the wash tank 200 is full can be adjusted.

Specifically, when the position of the floating ball 208 is moved upward by adjusting the screwing amount of the bolt 234, the valve portion of the ball tap 206 closes slowly when water is supplied into the cleaning tank 200. A lot of water is supplied.
Conversely, when the position of the floating ball 208 is moved downward, the valve portion of the ball tap 206 closes quickly when water is supplied into the cleaning tank 200, and the amount of water supplied into the cleaning tank 200 is adjusted to be small. The

Therefore, by adjusting the position of the floating ball 208 to the upper side or the lower side with the bolt 234, the position of the water surface W of the cleaning water when the water is full can be adjusted up and down.
That is, the amount of water stored in the cleaning tank 200 can be adjusted. For example, when 10 L (liter) of washing water is released during large washing, the amount of washing water discharged is adjusted to, for example, 8 L by moving the position of the floating ball 208 downward to save water. Can be done.
Similarly, when 8 L of washing water is discharged at the time of large washing, the amount of washing water is adjusted to 6 L by moving the position of the floating ball 208 further downward to save water. It is also possible to perform.

However, when the discharge amount of the wash water is greatly reduced in this way, the position of the water surface W at the time of full water is greatly lowered, and the momentum of the water when discharging the wash water from the discharge port 226 is accordingly accompanied. It becomes weak.
As a result, the cleaning efficiency at the time of toilet cleaning is lowered, and the toilet cleaning cannot be performed well.

On the other hand, as a means to save water by reducing the amount of wash water to be discharged, a container such as a plastic bottle is placed inside the wash tank to save the amount of water that is excluded by this, or in the wash tank. A partition that largely surrounds the drain valve and the drain port is provided to increase the amount of remaining water in the tank and save water.
For example, Patent Document 1 below discloses that a large circular drum is provided so as to surround a drain valve, a drain port, and further an overflow pipe to thereby save water.
However, in any of these cases, in a cleaning tank that has been made compact in recent years, these containers, partition members and the like interfere with other members inside the tank, and it is actually necessary to install them inside the cleaning tank. It is difficult to apply to the actual situation.

  In Patent Document 2 below, a brake plate for generating water resistance is provided on the side opposite to the drain valve with respect to the overflow pipe, and the brake plate and the drain valve are connected by an arm that is rotatable about an axis. In addition, a brake plate that slows the closing speed of the drain valve is disclosed.

  However, in the device disclosed in Patent Document 2, the brake plate and the arm are located on the opposite side of the overflow pipe, and the brake piece and the arm occupy a large space in the wash tank. There is a problem that is difficult to apply.

Japanese Utility Model Publication No. 5-10569 Japanese Patent No. 3396320

  The present invention is based on the above circumstances, and can easily adjust the amount of discharged water at the time of discharge of cleaning water, or save water, or adjust the amount of discharged cleaning water appropriately according to the situation of the cleaning tank and the site. A drainage valve device that can be applied to compact cleaning tanks without any problems, and that does not cause problems such as internal interference, its construction method, resistance piece used therefor, and method for adjusting the amount of drainage It was made for the purpose of doing.

  Thus, claim 1 relates to a drain valve device, wherein the flush water in the flush tank is discharged from the drain port at the bottom of the tank toward the toilet by opening the drain valve. The drainage valve itself is provided with a resistance piece for generating water resistance when the drainage valve is closed so as to be detachable and directly attached thereto.

  The second aspect of the present invention relates to a method for adjusting the amount of water discharged from the washing water, and the washing water in the washing tank is discharged from the drain at the bottom of the tank toward the toilet by opening the drain valve. A resistance piece that generates water resistance when the drain valve is closed is detachable and directly attachable to the drain valve of the apparatus, and the type of the resistance piece is made different by detaching the resistance piece. Thus, the discharge amount of the washing water is adjusted by changing the resistance of the generated water.

  Claim 3 relates to a construction method of the drain valve device, which is a flush tank in which flush water in the flush tank is discharged from the drain port at the bottom of the tank toward the toilet by opening the drain valve. The drain valve device is constructed by attaching a resistance piece that generates water resistance to the drain valve itself when the drain valve is closed so as to be detachable and directly attached to the drain valve device. Features.

  According to a fourth aspect of the present invention, there is provided a resistance piece as a member used in the drainage valve device, wherein the flushing water in the washing tank is discharged from the drainage port at the bottom of the tank toward the toilet by opening the drainage valve. The drainage valve device of the washing tank is detachably and directly attached to the drainage valve itself, and water resistance is generated when the drainage valve is closed.

Effects and effects of the invention

  As described above, according to the first aspect of the present invention, the drainage valve itself is detachably and directly attached with a resistance piece that generates water resistance in the closing direction of the drainage valve when the drainage valve is closed. According to the drain valve device of item 1, when the drain valve closes, the speed of closing the drain valve is slowed by the resistance of water acting on the resistance piece.

On the other hand, when this resistance piece is removed from the drain valve, the resistance of water acting on the resistance piece is lost, and the closing speed of the drain valve is increased.
Therefore, when it is necessary to save water, removing this resistance piece from the drain valve and closing the drain valve at a high speed makes it possible to reduce the amount of drainage of the washing water, thereby conserving the washing water. Can be fulfilled.

  On the other hand, if you want to secure a large amount of washing water according to the situation of the washing tank and the installation site, leave the drain valve with a resistance piece to slow down the drain valve and thereby drain it. By increasing the time until the valve is closed, more washing water can be discharged toward the toilet.

  In the present invention, since the resistance piece is detachably attached directly to the drain valve itself, there is no need to secure a large dedicated space in other places like the one disclosed in Patent Document 2, and therefore The present invention can be applied to a compact cleaning tank without any problems, and there is no particular problem of internal interference with other members in the tank.

  Furthermore, in the present invention, since the discharge amount of the cleaning water is adjusted by adjusting the speed of the closing operation of the drain valve by the resistance piece, it is possible to save water by reducing the amount of the cleaning water stored in the cleaning tank. Compared with the case where it aims at, the water level of the wash water at the time of a full water can be kept high, and thereby, the momentum of the wash water can be secured strongly, and the washing efficiency for the toilet can be secured high.

  Claim 2 relates to a method for adjusting the discharge amount of washing water. In this adjustment method, water generated when the drain valve is closed by attaching / detaching the resistor piece to / from the drain valve or by changing the type of the resistor piece. Different resistance forces are used to adjust the discharge amount of cleaning water. According to this method, depending on the type of the cleaning tank and the situation at the installation site, the resistance piece can be removed and used differently. The amount of discharged water can be easily adjusted to an appropriate amount.

  Next, Claim 3 relates to the construction method of the drainage valve device. According to the construction method of Claim 3, according to the type and form of the cleaning tank or the situation at the site at the installation site of the cleaning tank or the drainage valve device. Therefore, the drain valve device can be properly constructed. That is, the drain valve device can be constructed so as to discharge the cleaning water with an appropriate amount of discharged water according to the cleaning tank and the installation site.

  Next, claim 4 relates to a resistance piece used in the drain valve device. By using the resistance piece of claim 4, the inventions of claims 1 to 3 can be easily implemented.

Next, embodiments of the present invention will be described in detail with reference to the drawings.
1 and 2, reference numeral 10 denotes a tank bottom portion of the cleaning tank. The tank bottom portion 10 has a circular drain port 12 and a cylindrical valve seat (tank side valve seat) 14 having a low height rising from the periphery of the drain port 12. And are provided.
Reference numeral 16 denotes a mounting portion of a drain valve 18 which will be described later, provided on the tank bottom portion 10, and has a rising portion 19 rising from the tank bottom portion 10 and a shaft 20 provided on the upper end portion of the rising portion 19. Yes.

The drain valve 18 comprises a flapper valve 22 for small washing for discharging a small amount of washing water during urination and a float valve 24 for large washing for discharging a large amount of washing water during stool. .
One ends of the chains 26 and 28 are connected to each other, and the flapper valve 22 and the float valve 24 are opened by pulling up the chains 26 and 28.
A floating ball 30 is attached to the chain 26, and the buoyancy of the floating ball 30 is applied to the flapper valve 22.

On the other hand, the float valve 24 has a cylindrical shape as a whole, and a wash water passage 32 is formed inside thereof.
A hollow portion 34 is formed inside the peripheral wall portion of the cylindrical portion, and the float valve 24 has a hollow structure.
Then, air is confined in the hollow portion 34, and buoyancy due to the air acts on the float valve 24.

The flapper valve 22 opens the upper end opening of the float valve 24 by opening the valve, and discharges the wash water in the tank through the passage 32 inside the float valve 24.
When the valve is closed, the upper end opening of the float valve 24 is closed, and the discharge of the washing water through the passage 32 is stopped.
At this time, the flapper valve 22 elastically seats a packing 36 made of an elastic material such as a sheet-like rubber provided on the lower surface of the flap valve 24 on the upper end of the float valve 24 to seal the upper end opening of the float valve 24 in a watertight manner.

On the other hand, a seat portion 38 is provided at the lower end portion of the float valve 24, and a circular sheet-like packing 40 made of an elastic material such as rubber is held therein.
The float valve 24 is seated on the valve seat 14 in a state where the packing 40 is elastically brought into contact with the valve seat 14 and closes the drain port 12.
Further, when the valve is opened, the drain port 12 is opened and the washing water in the washing tank is discharged from the drain port 12 toward the toilet.

The flapper valve 22 and the float valve 24 integrally have arms 42 and 44 extending from the main body of the valve, respectively.
A downward elastic fitting hole 48 is provided at the lower portion of the tip of the arm 42 of the flapper valve 22, and this elastic fitting hole 48 is connected to the shaft portion 50 provided in the arm 44 of the float valve 24. The flapper valve 22 is attached to the float valve 24 by being elastically fitted so as to be rotatable.

On the other hand, the arm 44 of the float valve 24 is also provided with a downward elastic fitting hole 46, and the elastic fitting hole 46 is elastically fitted to the shaft portion 20 of the mounting portion 16 so as to be rotatable downward. The valve 24 is attached to the attachment portion 16.
That is, by elastically fitting the elastic fitting hole 46 to the shaft portion 20, the entire drain valve 18 including the float valve 24 and the flapper valve 22 is attached to the tank bottom portion 10 via the attachment portion 16.

In these drain valve devices shown in FIGS. 1 and 2, when the chain 26 is pulled up as shown in FIG. 5, the flapper valve 22 is rotated around the shaft 50 to open, and small washing is performed here. Is called.
On the other hand, when the chain 28 is pulled up as shown in FIG. 6, the float valve 24, that is, the drainage valve 18 as a whole rotates around the shaft 20 to open, and large washing is performed here.

As shown in FIG. 3, the flapper valve 22 has a pair of resistance pieces 52, which are separated from the flapper valve 22 on the left and right, in a state protruding in a direction perpendicular to the rotation direction of the flapper valve 22. Removably attached.
These resistance pieces 52 are plate-shaped, and the planar shape is a square shape here. One end of each flapper valve 22 side has clamping pieces 54 and 56 as attachment portions as shown in FIG. The resistor pieces 52 are provided on the flapper valve 22 so that the flapper valve 22 is clamped from the upper surface and the lower surface by the clamping pieces 54 and 56. Removably attached.

In the case of this drain valve device, when the flapper valve 22 is closed from the open state to the closed state, resistance due to water (cleaning water) in the cleaning tank acts on the resistance piece 52 attached to the flapper valve 22.
For this reason, the speed at the time of valve-closing operation | movement of the flapper valve 22 becomes slow by the resistance of the water.
As the speed of the valve closing operation of the flapper valve 22 becomes slow, more washing water in the washing tank is discharged for toilet flushing.

In other words, by setting the resistance piece 52 to the flapper valve 22, it is possible to set a large discharge amount of cleaning water at the time of small cleaning, while removing the resistance piece 52 from the flapper valve 22. As a result, the valve closing speed when the flapper valve 22 is closed can be increased, thereby reducing the amount of water discharged during flushing of the toilet bowl and saving water.
Alternatively, various resistance sizes of the resistance piece 52 are prepared, and the speed of the valve closing operation when the flapper valve 22 is closed is changed by changing the type of the resistance piece 52 attached to the flapper valve 22. According to this, the amount of discharged water at the time of discharging the cleaning water can be freely adjusted.

  In this embodiment, since the resistance piece 52 is detachably attached directly to the flapper valve 22, that is, the drain valve 18 itself, it is not necessary to secure a large dedicated space in other places, and therefore the compact piece is compact. The present invention can be applied to the washing tank without any problem, and there is no particular problem of causing internal interference with other members in the tank.

7 and 8 show another embodiment of the present invention.
In this example, the resistance piece 58 is detachably attached to the float valve 24 for large washing.
In this embodiment, a substantially annular fitting groove 60 is provided on the outer peripheral surface of the float valve 24 having a cylindrical shape and along the outer periphery.
On the other hand, the resistance piece 58 is formed in a substantially planar rectangular plate shape as a whole, and a notch 62 corresponding to the outer peripheral shape of the float valve 24 is provided, and the resistance piece 58 is connected to the outer peripheral surface of the float valve 24 in the notch 62. 8, the inner peripheral edge of the notch 62 is fitted into the fitting groove 60 of the float valve 24 as shown in FIG. 8, so that the resistance piece 58 is detachably attached to the float valve 24. It is.

Here, each end on the notch 62 side of the resistor piece 58 is configured as a positioning part 64 for positioning the float valve 24 in the circumferential direction, and these positioning parts 64 are shown in FIG. As a result, the assembly position in the circumferential direction can be defined by contacting the outer surface of the arm 44 of the float valve 24.
Note that the resistance piece 58 is fixed to the float valve 24 in the axial direction, that is, in the rotational direction of the float valve 24 in a state of being fitted in the fitting groove 60.

In the embodiment of FIGS. 7 and 8, when the float valve 24 is closed during large cleaning, that is, when the entire drain valve 18 is closed, the resistance of the water acting on the resistance piece 58 causes the drain valve 18 to The valve closing speed is slowed, thereby increasing the discharge flow rate of the washing water.
On the other hand, when the discharge amount of the wash water may be small and water saving is desired, the valve closing operation of the drain valve 18 when the valve is closed can be speeded up by removing the resistance piece 58 from the float valve 24. It is possible to reduce the amount of washing water discharged until the valve closing is completed, thereby saving water.
Furthermore, by changing the size of the resistance piece 58, the valve closing speed of the drain valve 18 can be changed variously, and the discharge amount of the washing water can be adjusted accordingly.

  In this embodiment, by adjusting the speed of the valve closing operation of the drain valve 18 by the resistance piece 58, the amount of wash water discharged is adjusted. Therefore, by reducing the amount of wash water stored in the wash tank, Compared with the case of saving water, it is possible to keep the water level of the wash water high when the water is full, thereby ensuring a strong momentum of the wash water and ensuring a high cleaning efficiency for the toilet. Can do.

As shown in FIG. 9, resistance pieces 52 and 58 can be detachably provided on the small cleaning flapper valve 22 and the large cleaning float valve 24, respectively.
In this case, it is possible to secure a large amount of washing water both in the small washing and the large washing, and by removing the resistance pieces 52 and 58 or also changing the sizes of the resistance pieces 52 and 58 in various ways. This makes it possible to easily adjust the amount of washing water to a desired amount for each of the small washing and the large washing.

Although the embodiment of the present invention has been described in detail above, this is merely an example.
For example, in the present invention, two resistor pieces are combined so as to be slidable along the plate surface and in a direction perpendicular to the rotation direction of the flapper valve 22 and the float valve 24. It is also possible to increase or decrease the resistance area of the entire resistance piece, and by providing a slit in each, by increasing or decreasing the opening of the slit by sliding movement, It is also possible to adjust the magnitude of the resistance by the resistance piece.
In addition, the present invention can be applied to a drain valve device having a drain valve composed of a ball-shaped rubber valve shown in FIG. 10. For example, the present invention is variously modified without departing from the spirit of the present invention. It is configurable.

It is a figure of the drain valve device which is one embodiment of the present invention. It is a figure which decomposes | disassembles and shows the drain valve apparatus of the embodiment to each component. It is a perspective view of the drain valve device of the embodiment. It is the figure which showed the principal part of the same embodiment. It is operation | movement explanatory drawing of the embodiment. FIG. 6 is an operation explanatory view different from FIG. 5 of the same embodiment. It is a figure of other embodiment of this invention. FIG. 8 is a view showing a state where the resistance piece of FIG. 7 is assembled to the drain valve. It is a figure of other embodiment of this invention. It is the figure which showed the conventional drain valve apparatus with the washing tank apparatus.

Explanation of symbols

10 Tank bottom 12 Drain port 18 Drain valve 52, 58 Resistive piece

Claims (4)

In the drainage valve device of the washing tank in which the flushing water in the washing tank is discharged from the drainage port at the bottom of the tank toward the toilet by opening the drainage valve, water is supplied to the drainage valve itself when the drainage valve is closed. A drain valve device for a washing tank, wherein a resistance piece for generating the resistance is attached in a detachable and direct manner.   When the drain valve is closed, the flush water in the flush tank is drained from the drain port at the bottom of the tank toward the toilet by opening the drain valve. It is possible to attach and detach the resistance piece that generates the resistance of the detachable and directly attachable, and to clean by changing the resistance force of the generated water by detaching the resistance piece or by changing the type of the resistance piece. A method for adjusting the discharge amount of cleaning water, characterized by adjusting the discharge amount of water. A method for constructing a drainage valve device for a washing tank in which flushing water in the washing tank is discharged from the drainage port at the bottom of the tank toward the toilet by opening the drainage valve, wherein the drainage valve itself includes the drainage valve. A construction method of a drainage valve device for a washing tank, wherein a drainage valve device is constructed by detachably and directly attaching a resistance piece that generates water resistance when closing a water tank.   The washing water in the washing tank is detachably and directly attached to the drain valve itself of the drain valve device of the washing tank, which is configured to discharge the washing water from the drain port at the bottom of the tank toward the toilet by opening the drain valve. A resistance piece for a drain valve device of a cleaning tank that generates water resistance when the drain valve is closed.

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