JP2003193530A - Low-level tank - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a low-level tank for preventing water in the tank from flowing into between the tank and a housing and leaking from the tank due to condensation and splashing due to collision. <P>SOLUTION: The tank 1 opening upward is mounted in the housing 2. A flange portion 3 is peripherally provided on the inner periphery face of the housing 2 on the upper side of the tank 1 to cover a space between the outer periphery face of the tank 1 and the inner periphery face of the housing 2 in a plan view. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a raw tank which prevents leakage of condensed water.

[0002]

2. Description of the Related Art Conventionally, there has been known a low tank as described below in which a tank 1 and facilities around the toilet other than the tank 1 such as a hot water washing device are installed in a housing 2'to secure a space for a toilet space. . The housing 2'includes a housing body 12 'having an opening at the top and a housing body 1
It is composed of a lid 13 'that covers the opening 2'. The opening of the housing body 12 ′ is located above the opening of the tank 1.

By the way, in the above-mentioned conventional low tank, since the tank 1 containing water is incorporated in the housing 2 ', the humidity in the housing 2'becomes high and the lid 1 of the housing 2'is increased.
Condensation is formed on the lower surface of 3 ', and the condensed water flows through the lid 13' into the space between the housing body 12 'and the tank 1, or the water stored in the tank 1 splashes and scatters. It had flowed between 12 'and tank 1. Furthermore, the water flowing between the housing main body 12 'and the tank 1 reaches the facilities around the toilet such as the hot water washing device installed in the housing 2', which causes the breakdown of the facilities around the toilet. .

There is also known a low tank in which a hand washing part 5'for washing a user's hand is integrally provided with a lid 13 'on the upper surface of the housing 2'of the low tank as shown in FIG. The hand washing part 5'of this low tank has a drainage means 6'at the lower end portion, and the water supplied to the hand washing part 5'is drained from the draining means 6'to the tank 1 so that the hand washing part 5'is
The water used in is reused as water for cleaning the toilet bowl.

However, in the low tank having the conventional hand-washing section 5 ', there is no shield provided between the draining means 6'and the tank 1, and the drainage is carried out from the hand-washing section 5'as shown in FIG. Since the water that is drained goes directly to tank 1,
The water discharged from the hand washing section 5'collides with the water in the tank 1 and scatters, and the scattered water flows between the housing body 12 'and the tank 1 or the lid 13' and the housing body 12 '. It was leaking out of the raw tank from the time between. Further, the water discharged from the hand washing section 5'bounces against a drain valve such as a ball tap or a Douglas valve provided in the tank 1 vigorously, resulting in malfunction of water supply and drainage of the low tank.

[0006]

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and it is an object of the present invention to provide water between a tank and a housing due to dew condensation or splashing due to collision. It is an object of the present invention to provide a low tank that prevents it from flowing in and leaking from the tank.

[0007]

[MEANS FOR SOLVING THE PROBLEMS] To solve the above problems, a raw tank according to the present invention is a tank 1 that opens upward.
In a low tank in which water is stored in the housing 2 and the water in the tank 1 is discharged to a toilet bowl, the outer peripheral surface of the tank 1 and the inner peripheral surface of the housing 2 are located above the inner peripheral surface of the housing 2 in a plan view. It is characterized in that it is formed by surrounding a flange portion 3 that covers the space between.

As described above, the flange portion 3 is attached to the housing 2.
By providing the flange portion 3 between the outer peripheral surface of the tank 1 and the inner peripheral surface of the housing 2, the water condensed on the housing 2 and the water scattered from the water surface of the water stored in the tank 1 are housed. 2 can be prevented from flowing between the tank 1 and the tank 1.

A low tank according to a second aspect of the present invention is the low tank according to the first aspect, characterized in that the upper surface of the flange portion 3 is formed so as to be inclined downward toward the tip.

By inclining the upper surface of the flange portion 3 as described above, it is possible to prevent water from staying on the upper surface of the flange portion 3 and to make the water flow smoothly into the tank 1.

A low tank according to a third aspect is the low tank according to the first or second aspect, wherein the flange portion 3 is provided.
Of the water leakage prevention piece 4 projecting inward from the inner peripheral surface of the tank 1 and projecting downward at the tip of the flange portion 3, and the lower surface of the water leakage prevention piece 4 is lower than the upper end surface of the tank 1. It is characterized in that it is formed so as to be located at.

By providing the water leakage prevention piece 4 at the tip of the flange portion 3 as described above, the space between the lower surface of the flange portion 3 and the upper end surface of the tank 1 can be covered, and dew condensation on the housing 2 is further achieved. It is possible to prevent water and water scattered from the water surface of the water stored in the tank 1 from flowing between the housing 2 and the tank 1. Furthermore, by covering the upper end portion of the tank 1 with the inner surface of the housing 2 and the outer surface of the water leakage prevention piece 4, it is possible to prevent the deformation of the upper end portion of the tank 1 caused by pouring water into the tank 1.

A low tank according to a fourth aspect is the first to third aspects.
In the low tank according to any one of the items 1 to 5, a hand washing part 5 is provided on the upper surface of the housing 2, a drainage means 6 is provided at a lower end portion of the hand washing part 5, and the drainage means 6 is opened upward and communicates with the hand washing part 5. 7 and a lower opening 8 that opens downward
And a flow path 9 connecting the upper opening 7 and the lower opening 8, and a flow path 9
The water receiving portion 10 is provided below the upper opening 7 in the inside.

By providing the water receiving portion 10 below the upper opening 7 in the flow passage 9 as described above, the downward force of the water discharged from the hand washing portion 5 is suppressed and the water in the tank 1 is removed. It will not collide and scatter, and it will be possible to further prevent the water discharged from the hand washing section 5 from flowing into the gap between the tank 1 and the housing 2.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described below based on the embodiments shown in the accompanying drawings.

In the low tank of the present invention, a housing 2 is internally provided with a tank 1 and equipment around a toilet other than the tank such as a hot water cleaning device. By integrally providing the tank 1 and the equipment around the toilet such as the hot water cleaning device in the housing 2,
The toilet space is secured and the appearance of the low tank is improved. As shown in FIG. 1, the housing 2 is composed of a housing body 12 having an upper opening and a lid 13 that covers the opening of the housing body 12 in order to improve the maintainability of the low tank. Is arranged so as to be located above the upper end of the.

The lid 13 is composed of a top plate 17 and a vertical plate 18 that is provided around the peripheral edge of the top plate 17 and projects downward. A downward projecting piece 14 is provided around the inside of the lower end surface of the vertical plate 18 of the lid 13, and a downward projecting piece 14 of the lower end surface of the vertical plate 18 is provided on the upper end surface corresponding to the peripheral edge of the opening of the housing body 12. The lid 13 is placed on the housing body 12 by abutting the portions not provided with. Further, in this case, the lower end surface of the downward projecting piece 14 is located slightly below the upper end surface of the housing body 12, and the outer peripheral surface of the downward projecting piece 14 causes the lower end surface of the vertical plate 18 of the lid 13 and the housing body 1 to move.
The upper surface of the housing body 12 is covered with the inner surface of the housing body 12.

A flange portion 3 projecting inward is provided around a portion of the inner peripheral surface of the housing body 12 located slightly above the tank 1. The flange portion 3 is an outer periphery of the tank 1 in plan view. It covers between the surface and the inner peripheral surface of the housing 2. That is, the lower surface of the flange portion 3 covers the space between the tank 1 and the housing 2. The inner end surface (tip) of the flange portion 3 is located inside the inner peripheral surface of the tank 1, and the upper surface of the flange portion 3 is inclined downward as it goes inward.

The tank 1 has a tank water supply port for supplying water to the tank 1 and a tank water discharge port for discharging the water in the tank 1 to a toilet bowl. The tank water supply port and the tank water discharge port respectively have water supply valves. A drain valve such as a Douglas valve is provided. The tank 1 has a ball tap that floats on the water in the tank 1 and opens and closes the water supply valve according to the change in the water level in the tank 1. Although not shown in the figure, the low tank has an operation unit that allows the user to open and close the drain valve.

Cleaning of the toilet using the low tank is performed by the user operating the operation portion to open the drain valve and draining the water in the tank 1 from the tank drain to the toilet. When the water level in the tank 1 is lowered by drainage, the ball tap floating on the water surface is lowered, whereby the water supply valve is opened and water is supplied into the tank 1 from the tank water supply port.
When the water supply progresses, the water level in the tank 1 rises, the ball tap rises, the water supply valve is closed, the water supply to the tank 1 is stopped, and the toilet bowl is returned to the initial state where it can be washed.

By the way, in the low tank, since the tank 1 containing water is covered with the housing 2, the inside of the housing 2 has a high humidity and the lid 13 located above the tank 1 has a high humidity.
The lower surface of the top plate 17 and the inner peripheral surface of the vertical plate 18 are in a state where dew condensation is likely to occur. In the present embodiment, as described above, the flange portion 3 is provided on the housing body 12 to move the water condensed on the lower surface of the lid 13 as shown by an arrow B in FIG. That is, the water condensed on the lower surface of the top plate 17 of the lid 13 is transmitted to the lower surface of the top plate 17 and the inner peripheral surface of the vertical plate 18 and hits the upper surface of the flange portion 3 to flow inside the flange portion 3,
It will fall into the tank 1 from the inner end of the flange portion 3. The water condensed on the lower surface of the lid 13 is stored in the tank 1
In order to reliably flow into the inside, condensed water does not enter between the housing main body 12 and the tank 1, and the entered water does not damage the facilities around the toilet installed in the housing 2. Further, as shown in FIG. 1, even when the water stored in the tank 1 is scattered, the scattered water hits the upper surface of the flange portion 3 and therefore does not enter between the tank 1 and the housing body 12.

Further, since the upper surface of the flange portion 3 is inclined downward as it goes inward, it is possible to prevent water from staying on the upper surface of the flange portion 3 and to make the water flow smoothly into the tank 1.

Further, a downward projecting piece 14 is provided around the inside of the lower end surface of the lid 13, and the outer peripheral surface of the downward projecting piece 14 is the lid 13.
Since it is arranged so as to cover between the lower end surface of the cover and the upper end surface of the housing body 12, the condensed water prevents the dew condensation water from forming on the vertical plate 1
It is possible to prevent leakage to the outside of the housing 2 from between the lower end surface of the housing 8 and the upper end surface of the housing body 12.

Next, another embodiment different from the above embodiment will be described. In the following description, the same components as those in the above-described embodiment are designated by the same reference numerals, and the duplicate description will be omitted. In the low tank according to the present embodiment, as shown in FIG.
Of the water leakage prevention piece 4 is provided at the tip of the flange portion 3 so as to be located below the upper end surface of the tank 1. Is forming. By providing the water leakage prevention piece 4 in this manner, the space between the lower surface of the flange portion 3 and the upper end surface of the tank 1 is covered by the water leakage prevention piece 4, so that the lid 1 is further covered.
It is possible to prevent the water condensed on the lower surface of 3 and the water scattered from the water surface of the water stored in the tank from flowing between the housing 2 and the tank 1. Further, by covering the upper end of the tank 1 with the upper end of the inner surface of the housing body 12 and the outer surface of the water leakage prevention piece 4, the deformation of the upper end of the tank 1 caused by pouring water into the tank 1 is prevented. can do.

FIG. 3 shows another embodiment which is different from the embodiments shown in FIGS. In the low tank according to the present embodiment, a hand washing part 5 is provided integrally with the housing 2 on the upper surface of the lid 13 of the housing 2. The hand washing section 5 has a water supply means 15 for hand washing, and a drain means 6 is provided at the lower end of the hand washing section 5. The drainage means 6 has an upper opening 7 which opens upward and communicates with the hand washing part 5, a lower opening 8 which opens downward and faces the opening of the tank 1, and a flow path 9 which connects the upper opening 7 and the lower opening 8. And a water receiving portion 10 provided below the upper opening 7 in the flow path 9 and facing the upper opening 7. In addition, the flow path 9 and the water receiving portion 10
Are formed integrally with the hand washing part 5.

When the user washes his / her hands, he / she uses the water flowing from the hand-washing water supply means 15 of the hand-washing section 5 to wash his / her hands. The water used for hand washing flows from the upper opening 7 into the flow path 9 and then through the flow path 9 to the tank 1 from the lower opening 8. The water flowing out from the lower opening 8 is stored in the tank 1 and then drained to the toilet bowl to be used for cleaning the toilet bowl. In this case, the water flowing from the upper opening 7 into the flow path 9 hits the upper surface of the water receiving portion 10 provided below the upper opening 7, and the falling speed of the water becomes slow, so that the tank 1 does not collide and scatter. Water can be poured inside. Further, the lower opening 8 of the flow path 9
Even if the water discharged from the hand washing part 5 hits the water receiving part 10 and bounces back to the surroundings, the water hits the inner surface of the flow path 9, so that the tank 1 is directed downward from the lower opening 8. You can surely flow water inside,
The water discharged from the hand washing section 5 is the tank 1 and the housing 2.
Can be further prevented from flowing into the space between the upper end surface of the housing body 12 and the lower end surface of the lid 13. In addition, the ball tap and drain valve have a hand-washing part 5
The water discharged from the tank will not hit vigorously, and the operation of water supply and drainage of the tank 1 will be stable. Further, by providing the drainage means 6 integrally with the hand washing part 5, it is possible to prevent water leakage without increasing the cost.

[0027]

As described above, according to the first aspect of the present invention, the water condensed on the housing and the water scattered from the surface of the water stored in the tank are between the housing and the tank. It can be prevented from flowing. In addition, in a low tank in which a housing is equipped with equipment around the toilet such as a hot water washing device, it is possible to prevent the hot water washing device from being damaged due to water leakage.

According to the invention of claim 2, in addition to the effect of the invention of claim 1, by inclining the upper surface of the flange portion, it is possible to prevent water from remaining on the upper surface of the flange portion. The dew condensation water can be poured into the tank.

According to the invention of claim 3, in addition to the effect of the invention of claim 1 or 2, the bottom surface of the flange portion is provided by providing a water leakage prevention piece at the tip of the flange portion. And the upper end surface of the tank can be covered, and it is possible to prevent the water condensed on the housing and the water scattered from the water surface stored in the tank from flowing into between the housing and the tank. is there. Further, by covering the upper end portion of the tank with the inner surface of the housing and the outer surface of the water leakage prevention piece, it is possible to prevent deformation of the upper end portion of the tank and prevent water leakage from the gap due to deformation of the tank. .

According to the invention of claim 4, in addition to the effect of the invention of any one of claims 1 to 3, a water receiver is provided below the upper opening in the flow path as described above. By providing a part, the downward force of the water discharged from the hand washing part is suppressed, the water does not splash from the water surface of the water stored in the tank, and the hand washing part is provided between the tank and the housing. It is possible to further prevent the discharged water from flowing in. In addition, the water discharged from the hand washing section does not hit the ball tap or the drain valve vigorously, and it is possible to prevent the malfunction of switching the water supply or drain of the tank.

[Brief description of drawings]

FIG. 1 is a sectional view showing an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing another embodiment of the present invention different from FIG.

FIG. 3 is a cross-sectional view showing another embodiment of the present invention different from FIGS. 1 and 2.

FIG. 4 is a cross-sectional view showing a raw tank having a conventional hand washing part.

[Explanation of symbols]

1 tank 2 housing 3 Flange part 4 Water leakage prevention piece 5 Hand wash department 6 drainage means 7 Upper opening 8 lower opening 9 channels 10 Water receiver

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Takahiro Nakamura             1048, Kadoma, Kadoma-shi, Osaka Matsushita Electric Works Co., Ltd.             Inside the company (72) Inventor Yoshihiro Nishizaki             1048, Kadoma, Kadoma-shi, Osaka Matsushita Electric Works Co., Ltd.             Inside the company F-term (reference) 2D039 BA00 CD01 DB00

Claims (4)

[Claims] 1. In a low tank in which a tank having an opening at the top is housed in a housing and water in the tank is discharged to a toilet bowl, the outer peripheral surface of the tank and the housing are located at a position above the inner peripheral surface of the housing above the tank in plan view. A low tank characterized in that it is formed by surrounding a flange portion that covers a space between the inner surface and the inner peripheral surface of. 2. The low tank according to claim 1, wherein the upper surface of the flange portion is formed so as to be inclined downward as it goes to the tip. 3. A water leakage prevention piece protruding downward from the inner peripheral surface of the tank, wherein the tip of the flange portion projects downward, and the bottom surface of the water leakage prevention piece has an upper end surface of the tank. The raw tank according to claim 1 or 2, wherein the raw tank is formed so as to be located below the lower tank. 4. A hand washing part is provided on an upper surface of the housing, a drain means is provided at a lower end portion of the hand washing part, the drain means is opened upward to communicate with the hand wash part, a lower opening is opened downward, and an upper opening. The raw tank according to any one of claims 1 to 3, wherein the raw tank is configured by a flow path connecting the lower opening and a lower opening, and a water receiving portion provided below the upper opening in the flow path.