JPH0312849Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a cleaning tank for a flush toilet that prevents condensation, and more particularly to a double-structure cleaning tank for a flush toilet that has an inner tank and an outer tank.

[Prior Art] As shown in FIG. 3, a conventional dew condensation prevention tank has a heat insulating layer 14 made of a heat insulating material on the inner wall surface of a ceramic cover tank 12 of a tank 10, and the heat insulating layer 14 protects the tank 10. The tank wall is prevented from being cooled by the supplied low-temperature water, and the surface temperature of the cover tank 12 is maintained at a temperature comparable to the ambient temperature, thereby preventing dew condensation on the cover tank 12. Ta.

Note that FIG. 3 shows a sectional view taken along the - line in FIG. 2. Reference numeral 16 in FIGS. 2 and 3 indicates a toilet bowl.

[Problems to be Solved by the Invention] Since the water in the tank is insulated from the ambient temperature by the above-mentioned heat insulating layer, dew condensation on the outer surface of the cover tank is prevented. However, when cold water is supplied to the tank, the water remains cold without rising to ambient temperature and is discharged into the toilet bowl, cooling the toilet bowl and causing condensation on the toilet bowl. Furthermore, the edges of the dew-proof layer need to be finished with a sealant or adhesive, which takes a long time to dry. Depending on the sealing material, problems such as mold may occur.

Further, as the above-mentioned heat insulating layer, a foamed product made of expanded polystyrene or foamed vinyl chloride has conventionally been used, but these heat insulating layers have the following drawbacks. In other words, the Styrofoam insulation layer is susceptible to aromatic chemicals (such as Bluelett), may peel off and float, requires molding costs, and is therefore unsuitable for small-volume products. It is not possible to provide an insulation layer around the float valve, which requires adhesion, so condensation occurs around it.The fit between the ceramic cover tank wall and the styrene insulation layer is incomplete.
There are disadvantages such as the high cost of the tank.

On the other hand, the insulation layer of a foamed PVC foam product is
Special production equipment is required, production is time-consuming, it is difficult to standardize the product, the appearance is poor, the dew-proofing effect around the float valve is low, and the insulation performance is poor, so a considerable thickness is required. However, there are drawbacks such as the cost of the tank being high, and the need for adhesive between the wall surface of the cover tank and the heat insulating layer, which makes it easy for mold to grow around the adhesive.

[Means for Solving the Problems] The purpose of the present invention is to reliably prevent dew condensation, improve the positioning of the inner tank and outer tank during assembly, and reduce manufacturing costs. The purpose of the present invention is to provide a cleaning tank for a flush toilet.

The cleaning tank for a flush toilet of the present invention includes an outer tank having a flush water outlet at the bottom, and an inner tank installed at a distance from the inner circumferential surface of the outer tank. The inner tank includes a bottom member and a container member connected to the upper side of the bottom member. The bottom member is installed on the bottom surface of the outer tank, and a float valve seat is provided above the wash water outlet. The container member has an opening on its bottom surface through which a float valve seated on the float valve seat is inserted, and a float stopper for the float valve is integrally formed therein.

[Function] Since the flush toilet cleaning tank of the present invention has a double structure, even when cold water is stored in the inner tank, the outer surface of the outer tank is maintained at ambient temperature, and no condensation occurs.

Moreover, this inner tank is formed by connecting the bottom member and the container member, and is easy to assemble, and the accuracy of the installation position of the connecting screw holes, etc. can be relaxed.

Further, since the bottom member and the container member of the inner tank can be manufactured separately, the inner tank is easier to manufacture than an integrated product, and the molding accuracy can also be improved. Since the float stopper of the float valve is integrally provided in this container member, the float stopper attachment parts are not required, and the effort of attaching the float stopper can also be omitted.

[Example] Examples will be described below with reference to the drawings.

FIG. 1 is a longitudinal cross-sectional view of a flush tank for a flush toilet according to an embodiment of the present invention, FIG. 4 is a cross-sectional view showing the structure of the inner tank taken along the line - in FIG. 1, and FIGS. 5 and 6 are , a plan view of the bottom member 24 and the container member 26, respectively, and FIG. 7 is an assembly explanatory diagram. In addition,
FIG. 1 shows a cross section taken along the - line in FIG.

This flush toilet cleaning tank has a double structure including an outer tank 18 and an inner tank 20.
The outer tank 18 has a cleaning water outlet 22 on its bottom.
has been established. Further, the inner tank 20 is configured by connecting a bottom member 24 and a container member 26.

The bottom member 24 is a planar member installed on the bottom surface of the outer tank 18, and as shown in the plan view in FIG. It is said to have a protruding shape. A water outlet 26 is provided at a location slightly shifted to one side from the center of the disc portion 24a, and a valve seat 30 on which a float valve 28 is seated is provided on the opening circumferential surface of this outlet 26. There is. In addition, the outlet 2
A short cylindrical member 32 that guides the outflow of water is connected to the lower surface side of the opening of 6. This cylindrical member 32
There is a slight gap around the side of the toilet 16 so that overflow water from the inner tank 20 can flow down to the toilet bowl 16. Reference numeral 33 indicates a distributor.

Further, as shown in FIG. 5, legs 34 project diagonally downward from three directions at the outlet 26, and a stopper 36 of a float valve is installed in the center of the outlet 26 and supported by the legs 34. ing.

The rectangular plate portions 24b and 24c have tongue-like pieces 38,
40, 42 protrude so as to extend in the horizontal direction, and each tongue-shaped piece 38, 40, 42 has an extraction hole 38.
a, 40a, 42a are bored. These extraction holes 38a to 42a are formed in the outer tank 18, as described later.
This is for passing a bolt through when assembling the toilet bowl 16 to the toilet bowl 16.

Further, a plurality of screw holes 44 are bored in the disc portion 24a of the bottom member 24. (In the example shown,
Screw holes 4 are provided at six equal positions on the circumference of the outlet 26.
4 is provided. ) Also, in this example,
Two positioning protrusions 46 are formed protruding from positions equiradial to these screw holes 44 . As shown in FIG. 4, this positioning protrusion 46
6 fits into a recess 48 bored in the bottom surface.

The container member 26 is sized to maintain a predetermined distance from the inner circumferential surface of the outer tank 28, and as shown in FIG. 6, an opening 50 through which the float valve 28 is inserted is provided at its bottom surface. It has a hollow shape. Additionally, six holes 52 are provided at equal circumferential positions along the edge of the opening 50, and a screw 54 inserted through each hole 52 is screwed into the screw hole 44 of the bottom member 24. Then, the container member 26
and the bottom member 24 are connected. Note that a packing 55 is provided between the container member 26 and the bottom member 24.
is mediated.

From the edge of the opening 50 of the container member 26, pillar members 56 and 58 are erected at an angle toward the center of the opening 50, and a ring-shaped float valve stopper 60 is provided at the upper end of the pillar members 56 and 58. As shown, they are integrally molded. The float valve 28 is connected to this floating stop 28.
rises to and stops.

Therefore, as shown in FIG.
A bolt insertion hole 62 is penetrated through the bottom surface. The bolt 6 inserted into this bolt insertion hole 62
4 also passes through a hole made on the top surface of the toilet bowl 16. A nut 68 is screwed onto the tip of the nut 68, thereby connecting the outer tank 18 and the toilet bowl 16. Note that a rubber gasket 70 is interposed between the bottom surface of the outer tank 18 and the top surface of the toilet bowl 16. Further, the reference numeral 72 indicates a washer.

The configuration of the device of this embodiment other than the above is the same as that of a conventional cleaning tank for a flush toilet, including a ball tap 74, a handle 76 for operating a float valve, a chain 78 connecting the handle 76 and the float valve 28, and a tank. It is equipped with a lid 80.

FIG. 7 is an explanatory diagram of the assembly of the above embodiment device. As shown in the figure, an outer tank 18 is installed on the toilet bowl 16 via a gasket 70, and a bottom member 24 and a container member 26 are installed in this order on the bottom surface of the outer tank 18. Material 2
4, the outer tank 18 and toilet bowl 16
Connect with. As described above, this connection is performed by the bolt 64 and nut 68, and the bolt 64 is inserted into the hole 38 of the bottom member 24 during assembly.
a, 40a, and 42a, and is inserted into the insertion hole.

After the bottom member 24 is installed, the container member 26 is placed on the bottom member 24 via the rubber packing 55 and fixed with the screws 54. In this embodiment, a positioning protrusion 46 is provided on the bottom member 24 so as to protrude from the bottom member 24.
Since a recess 48 that engages with the protrusion 46 is formed on the bottom surface of the container member 6, positioning of the container member 26 can be performed extremely easily.

In the present invention as well, the inner tank may be provided with irregularities such as folds as in the previous application. In this way, it is possible to efficiently raise the temperature of the water stored in the inner tank by utilizing the ambient temperature.

[Effects of the Invention] As described above, the present invention has an outer tank and an inner tank, and the inner tank is divided into a bottom member and a container member. Therefore, according to the present invention, the following excellent effects are achieved.

Since almost no heat of the cold water stored in the inner tank is transferred to the outer tank 18, the outer tank 18
No condensation will form on the outer surface of the

Unlike conventional tanks, there is no heat insulating layer, so manufacturing is easy and material costs are low, reducing manufacturing costs. In addition, there are problems when providing a heat insulating layer, such as peeling of the heat insulating layer.
There is no risk of poor chemical resistance or local condensation.

There is no need to separately provide an overflow pipe, and the configuration can be simplified accordingly.

Since there is no need to consider the water resistance between the outer tank and the toilet bowl, the accuracy required for the insertion hole of the bolt connecting the toilet bowl and the outer tank is relaxed, and installation is also facilitated.

The inner tank does not need to be made of ceramic, but can be made of resin, metal, or the like. When the inner tank is constructed of resin or metal in this manner, the installation accuracy of the screw insertion hole for connecting the container member and the bottom member can be extremely high.

Since the inner tank is divided into the bottom member and the container member, their manufacture is easy and their molding accuracy is improved. Furthermore, it is extremely easy to manufacture a bottom member and container member of a quality that reliably satisfies the required performance, and to construct an inner tank of a predetermined quality.

Since the float stopper of the float valve is provided integrally with the container member, the number of parts is reduced and assembly is also simplified.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal cross-sectional view of a flush toilet cleaning tank according to an embodiment of the present invention, FIG. 2 is a perspective view of a flush toilet equipped with a flush tank, and FIG. 3 is a vertical cross-sectional view of a conventional flush tank. 4 is a sectional view taken along the - line in FIG. 1, FIG. 5 is a plan view of the bottom member 24, FIG. 6 is a plan view of the container member 26, and FIG. 7 is a flush tank for a flush toilet according to an embodiment. FIG. 16... Toilet bowl, 18... Outer tank, 20... Inner tank, 24... Bottom member, 26... Container member, 2
8...Float valve.

Claims (1)

[Scope of Claim for Utility Model Registration] In a double-structure flush toilet cleaning tank having an outer tank with a flush water outlet at the bottom and an inner tank installed at a distance from the inner circumferential surface of the outer tank. , the inner tank has a bottom member installed on the bottom surface of the outer tank and has a float valve seat facing the wash water outlet, and is connected to the upper side of the bottom member, and has a float valve seat on the bottom surface facing the valve seat. 1. A flushing tank for a flush toilet, comprising: a container member having an opening for inserting the valve and integrally molded with a stopper for a float valve.