JP3454084B2 - Float valve device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a float valve device used for a low tank or the like for supplying flush water to a toilet bowl, and in particular, a float valve body is provided with a cup for increasing the amount of residual water in the tank. The present invention relates to a float valve device that is preferably used.

[0002]

As is well known, at the bottom of a low tank,
A float valve is provided, and when the lever handle, a switch, or the like is operated to pull up the float valve, the water in the raw tank flows out toward the toilet bowl. FIG. 3 is a vertical sectional view showing an example of a conventional float valve device.

A valve seat 1 is mounted on the flush water outlet of the bottom wall 6 of the low tank, and a float valve body 2 is seated on the valve seat 1. Reference numeral 2a is a guide rod connected to the float valve body 2. An overflow pipe 3 is attached to the valve seat 1, and a stopper (floating stop) 4 of the float valve body 2 is attached in the middle of the overflow pipe 3. The float valve body 2 has a hollow inside so that it can float above the water surface.

In the state shown in the drawing, the float valve body 2 is pressed against the valve seat 1 by the water pressure, and is in a water stop (water storage) state. When the handle provided on the side surface of the low tank is rotated and the float valve body 2 is pulled up through the chain 5, the float valve body 2 floats until it contacts the stopper 4. In this state, the wash water flows out from the valve seat 1.

When the water level in the low tank falls below the stopper 4, the float valve body 2 also separates from the stopper 4, and floats on the water surface and descends with the decreasing water level. When the water level reaches L in FIG. 3, the float valve body 2 is forcibly seated on the valve seat 1 by being drawn into the discharged water flow passing through the valve seat 1. Once the float valve body 2 is seated, the float valve body 2 is pressed against the valve seat 1 by the water pressure from above, and the water is stopped.

Therefore, the water below L in FIG. 3 is residual water that is not discharged from the raw tank. In the conventional float valve device, since the buoyancy of the float valve body 2 is constant, the water level L is constant, the residual water amount is also constant, and the residual water amount cannot be adjusted.

The applicant of the present invention, in Japanese Patent Application No. 8-3103, discloses a valve seat 1 mounted on a tank as shown in FIG.
And a float valve body 2 which is seated on the valve seat 1, in order to increase the weight of the float valve body 2 when the float valve body 2 is in a floating state by containing water in the float valve body 2. Has proposed a float valve device provided with the cup 7.

The cup 7 has a diameter that allows it to pass through the stopper 4. The cup 7 is molded separately from the float valve body 2 and is bonded to the float valve body 2 with an adhesive. It should be noted that the bottom surface of the cup 7 is provided with an opening through which the hook portion of the chain 5 is passed. By bonding the lower surface of the peripheral portion of the opening to the float valve body 2, water is accumulated in the cup 7. It has become. Other configurations are the same as those in FIG.

In the state shown in FIG. 4, the float valve body 2 is pressed against the valve seat 1 by the water pressure and is in a water stop (water storage) state. When the handle provided on the side surface of the low tank is rotated and the float valve body 2 is pulled up through the chain 5, the float valve body 2 floats until it contacts the stopper 4. In this state, the wash water flows out from the valve seat 1.

When the water level in the low tank falls below the stopper 4, the float valve body 2 also separates from the stopper 4 and floats on the water surface and descends with the decreasing water level. When the water level reaches H in FIG. 4, the float valve body 2 is forcibly seated on the valve seat 1 by being drawn into the discharged water flow passing through the valve seat 1. Once the float valve body 2 is seated, the float valve body 2 is pressed against the valve seat 1 by the water pressure from above, and the water is stopped.

In the float valve device of FIG. 4,
Since the water is stored in the cup 7 of the floated float valve body 2, the float valve body 2 is seated on the valve seat 1 earlier than in the conventional case. That is, the amount of residual water in the low tank increases from L in FIG. 3 (conventional) to H level in FIG.

After the float valve body is seated on the valve seat 1,
Water is poured to the specified water level in the low tank by a ball tap. After that, when the handle is operated again, the water in the raw tank is discharged to the level H in the same manner as above. The force required for operating the handle is almost the same as the conventional one because the weight of the water in the cup 7 does not become a load, and the handle can be operated lightly.

The cup 7 shown in FIGS. 5 (a) and 5 (b) is used.
Like A and 7B, the opening 8 and the notch 9 are provided on the side surface of the cup, and the level of the stored water in the cup 7 is changed, whereby the level H of the residual water amount can be adjusted.

[0014]

When a cup is provided as shown in FIG. 4, the cup easily interferes with a ball tap floating ball (not shown in FIG. 4) in the tank. That is, since the space in the tank is narrow and the floats are provided relatively close to the float valve body 2 and the overflow pipe 3,
When the float valve element 2 is provided with the cup 7, the cup 7 easily interferes with the floating ball.

An object of the present invention is to prevent interference between an elevating member such as this cup and a floating ball.

[0016]

SUMMARY OF THE INVENTION A float valve device of the present invention is a float valve device attached to an outlet at the bottom of a tank, which is a valve seat mounted on a tank and a float valve seated on the valve seat. in float valve device provided with a lifting member having a body, elevating the float valve device der provided with interference prevention member with the ball tap浮玉member and the tank
The interference prevention member is installed in the overflow pipe of the tank.
It is characterized by being attached .

In such a float valve device, since the interference preventing member is provided, the interference between the floating ball and the elevating member is prevented.

The present invention is suitable for being applied when the elevating member is a float valve body provided with a cup.

[0019]

[0020]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a perspective view of a float valve device according to an embodiment, and FIG. 2 is an exploded perspective view of this float valve device. FIG. 6 shows an interference prevention member 1 of this kind.
FIG. 2 is an overall perspective view (perspective view) of a Western-style toilet having a low tank 22 including 0.

In this embodiment, the interference preventing member 10 is attached to the overflow pipe 3. The interference prevention member 10 includes a mounting portion 11 having a C shape,
It has a hanging portion 12 connected to this mounting portion 11. The interference prevention member 10 is formed of synthetic resin as a whole, and the mounting portion 11 is fitted onto the overflow pipe 3 so as to push open the slit portion 11a. The overflow pipe 3 is provided with protrusions 3a and 3b, and the mounting portion 11
The interference prevention member 10 is attached to the overflow pipe 3 so as not to move up and down by externally fitting between the protrusions 3a and 3b.

A convex portion 3c that engages with the slit portion 11a is provided on the outer peripheral surface of the overflow pipe 3, and the interference preventing member 10 is formed by the engagement of the slit portion 11a and the convex portion 3c. It does not rotate in the circumferential direction of the overflow pipe 3.

The hanging part 12 is made of a curved plate member which hangs in parallel with the overflow pipe 3, and the gap between the hanging part 12 and the overflow pipe 3 is provided with a guide portion 13 of the cup 7C.
Can be moved up and down along the overflow pipe 3.

The guide portion 13 is provided with the overflow pipe 3
It is made up of a tubular member loosely fitted in and is connected to the cup 7C via the connecting portion 14.

Since the interference preventing member 10 is provided, the floating ball 15, the cup 7C, the float valve body 2 and the guide portion 1 are provided.
3 is prevented from interfering with each other.

The tank cover 2 is provided on the rear upper surface of the Western-style toilet 20.
1 is installed, and the low tank 2 is installed in the tank cover 21.
2 are installed. In addition, in the tank cover 21,
A hot water washing device having a nozzle 23 for washing the buttocks of a human body, a warm air fan for drying the buttocks, and the like are installed.

The float valve device 2 is provided in the low tank 22.
4, a bellows-shaped inner tank 26 for storing fresh water to be supplied to the hot water cleaning device is installed. 27 is a water supply pipe, 28 is a ball tap, and 29 is a hand-washing water discharge pipe.

The float valve device 24 comprises a valve seat 1, a float valve body 2, an overflow pipe 3 and the like, and the float valve body 2 is provided with a cup 7C. This cup 7C
The bottom face is provided with an opening 40, and the internal valve body 30 capable of opening and closing the opening 40 is formed by the pillar portions 41, 4 of the cup 7C.
2 (note that the pillars 41 and 42 and the internal valve body 30 are not shown in FIG. 2) so as to be swingable. The chain 5 is connected to the upper end of the internal valve body 30. When the handle 31 is turned to the large washing side, the internal valve body 30 opens the opening 40, and when the handle 31 is turned to the small washing side, the internal valve body is opened. 30 closes the opening 40.

When the opening 40 is open (during large cleaning)
When the float valve body 2 is pulled up, the water in the cup 7C flows out of the cup 7C through the opening, so that the float valve body 2 descends relatively slowly, so that the water in the low tank 22 is lowered. Spills into the toilet bowl of the Western-style toilet 20 in large quantities.

When the opening 40 is closed by the internal valve body 30 (during small cleaning), the float valve body 2 is quickly lowered by the weight of the water in the cup 7C to be seated. Only a small amount of water leaks into the toilet bowl.

When the water in the low tank 22 flows out, the floating ball 15 descends and the ball tap 28 opens to supply water into the low tank 22. As the water level in the low tank 22 recovers, the floating ball 15 rises and the ball tap 28 closes.

Even if the inner tank 26 is installed in the raw tank 22 as shown in FIG. 6 and the space in the raw tank 22 is extremely small, the interference prevention member 1
By providing 0, interference between the cup 7C, the float valve element 2, the guide portion 13 and the floating ball 15 can be reliably prevented.

[0033]

As described above, according to the float valve apparatus of the present invention, the interference between the ball tap floating ball and the elevating member such as the float valve body and the cup is reliably prevented. Therefore, the elevating member always elevates normally.

[Brief description of drawings]

FIG. 1 is a perspective view showing a float valve device according to an embodiment.

FIG. 2 is an exploded perspective view showing an embodiment.

FIG. 3 is a sectional view showing a conventional float valve device.

FIG. 4 is a side view of a float valve device having a cup.

FIG. 5 is a perspective view of a cup.

FIG. 6 is a perspective view of a Western-style toilet provided with the float valve device according to the embodiment.

[Explanation of symbols]

1 valve seat 2 float valve body 3 overflow pipe 4 stopper 5 chains 6 Low tank bottom wall 7,7A, 7B, 7C Cup 10 Interference prevention member 15 floating balls 20 Western style toilet 28 ball tap 30 internal valve body 40 openings 41,42 support

Front page continuation (72) Inventor Mitsunori Kosugi 14-1 Tsukamori, Nawa-cho, Tokai-shi, Aichi (56) References JP-A-5-44236 (JP, A) JP-A-6-228995 (JP, A) (58) ) Fields surveyed (Int.Cl. ⁷ , DB name) E03D 1/35 F16K 21/18

Claims (5)

(57) [Claims] 1. A float valve device attached to an outlet at the bottom of a tank, comprising a valve seat mounted on the tank, and an elevating member having a float valve body seated on the valve seat. In the device, a float valve device provided with a member for preventing interference between the elevating member and a ball tap floating ball in the tank, the interference preventing member
Is a float valve device that is attached to the overflow pipe of the tank . 2. The float valve body according to claim 1,
A float valve device comprising a cup for accommodating water to increase the weight of the float valve body when the float valve body is in a floating state. 3. The float valve device according to claim 2, wherein the cup is provided with an opening or a notch for adjusting a stored water level in the cup. 4. The opening according to claim 3, wherein the opening is provided at a bottom portion of the cup, and a valve body capable of opening and closing the opening is provided so as to be opened and closed by a handle of the tank. Float valve device. 5. The interference prevention member according to claim 1, wherein the interference prevention member is connected to the attachment portion and the attachment portion.
Has a hanging part, and the mounting part is attached to the overflow pipe.
It is fitted on the outside and between the hanging part and the overflow pipe.
The elevating member moves up and down the gap along the overflow pipe.
A float valve device characterized by being enabled .