JP2508414Y2 - Auxiliary water pipe connection structure in the toilet bowl - Google Patents

Description

[Detailed description of the device] [Industrial applications]

The present invention is an improvement of the auxiliary water pipe connection structure in the toilet bowl of the toilet cleaning tank in which water is replenished to ensure a predetermined water level in the toilet trap part of the siphon toilet after cleaning the toilet or the siphon zette toilet. Regarding

[Prior art]

For siphon-type toilets and siphon-zette-type toilets, it is necessary to replenish water from the toilet cleaning tank to the trap portion of the toilet immediately after cleaning the toilet to return the water level on the sump to the siphon generation level. Conventionally, in a toilet bowl cleaning tank for a siphon or a siphon-zette type toilet bowl, the means for supplying water to the toilet trap portion has been as shown in FIG. That is, the toilet bowl cleaning tank 1 has a ball tap 3 on the top of the tank body 2.
Attach the auxiliary water pipe 4 such as a rubber hose to the supply port 3a of the ball tap 3, insert the tip 4a of the auxiliary water pipe 4 into the inside of the pipe from the inlet 5a of the overflow pipe 5, and connect the tip 4a of the auxiliary water pipe 4 A stopper 6 is used to prevent the auxiliary water pipe 4 from being pulled out by being fixed to the overflow pipe 5. The overflow pipe 5 is erected in a state of being connected to the drain pipe 8 of the float valve 7 provided on the bottom portion 2a of the tank body 2. Needless to say, overflow pipe 5
When the ball tap 3 is excessively watered due to a failure or the like, the excessively supplied water is discharged to the toilet (not shown) through the drain pipe 8 of the float valve 7, so that the tank body 2 is filled with water and overflows. This is to prevent this.

[Problems to be solved by the device]

However, in the conventional structure, since the auxiliary water pipe 4 is inserted into the overflow pipe 5 as described above, the inflow port 5a is narrowed, the function as the overflow pipe 5 cannot be sufficiently achieved, and the tank main body 2 is filled with water. There was a fear of becoming.
Further, in the conventional structure, the water overflowing in the overflow pipe 5 may come into contact with the water discharge port 4a of the auxiliary water pipe 4 and flow back into the auxiliary water pipe 4. Further, in the conventional structure, when the drain valve 8 is clogged and the water supply pipe 9 is cut off and the float valve 7 is opened, the tank water is caused to flow back to the water supply pipe 9 through the overflow pipe 5, the auxiliary water pipe 5, and the ball tap 3. I was afraid. The present invention has been made in view of the above-mentioned problems, and provides an auxiliary water pipe connection structure in a toilet flush tank without narrowing the inlet of the overflow pipe and without any risk of backflow to the auxiliary water pipe. With the goal.

[Means for Solving the Problems]

The means adopted by the auxiliary water pipe connection structure in the toilet flush tank according to the present invention (hereinafter referred to as the “main structure”) is the structure in which the auxiliary water pipe is connected to the overflow pipe standing upright in the toilet flush tank. The fitting for connecting and fixing above the overflow edge of the overflow pipe is joined to the overflow pipe to form a spout space between the overflow edge of the overflow pipe and the discharge port of the auxiliary water pipe.

[Action]

Since the auxiliary water pipe fixed to the fixture forms the water outlet space between the overflow edge of the overflow pipe and the discharge port of the auxiliary water pipe, the inlet of the overflow pipe is not narrowed. Furthermore, the spout space does not allow the auxiliary water pipe and the overflow pipe to communicate with each other, so that the overflow pipe never flows back to the auxiliary water pipe.

【Example】

The present structure will be described below with reference to the drawings showing an embodiment thereof. (First Embodiment) FIGS. 1A and 1B show a structure 11 of the present invention of the first embodiment. In the proposed structure 11, the fitting 17 is externally fitted and joined 18 to the upper end 16a of the overflow pipe body 16 which is erected in the tank body 2 (see FIG. 5) to form the overflow pipe 15. The tip 4a of the auxiliary water pipe 4 is internally fitted and connected to the joint 17d. The fixture 17 is formed of a synthetic resin material or the like, and has a funnel-shaped inlet portion 17a, an annular joint portion 17b that is hung from the inlet portion 17a, and stands from the upper edge of the inlet portion 17a. Cantilever portion 17c and joining portion 17d provided at the tip of the cantilever portion 17c
It has and. The inflow port 17a has an overflow edge 15a of the overflow pipe 15 formed at the upper edge of the opening. The lower annular joint portion 17b has, on its inner periphery, an outer fitting step portion 1 for an outer fitting joint 18.
7e is formed. The upper joint portion 17d is fitted to the peripheral wall portion 17f to which the tip 4a of the auxiliary water pipe 4 is fitted and joined 19.
17g for forming the slits for strengthening the water pipe, and the auxiliary water pipe extension spout 17h communicating with the auxiliary water pipe 4.
Has been formed. A water outlet space S having a height dimension H ₁ is formed between the overflow edge 15a of the overflow pipe 15 and the water outlet portion 17h.
This height dimension H ₁ is made sufficiently higher than the height bar H ₂ of the overflow surface F generated when overflowing into the inflow port 17a of the fixture 17. Next, the operation of the proposed structure 11 will be described. Ball tap 3
(See FIG. 5) When the toilet is operating normally, immediately after cleaning the toilet bowl, water for replenishing the toilet trap portion is guided by the auxiliary water pipe 4 and discharged from the outlet portion 17h, and then the outlet space S And is discharged to the inlet port 17a of the fixture 17.
When the ball tap 3 is out of order, the overflow water W rises to the overflow surface F, and the inlet 17 of the fixture 17
overflow to a. At this time, since the overflow water W does not reach the water discharge port 17h higher than the overflow surface F, it never flows back into the auxiliary water pipe 4. Also,
When the drain valve 8 is clogged (see FIG. 5) and the water supply pipe 9 is cut off and the float valve 7 is opened, the spout space S is formed even if there is a slight backflow from the overflow edge 15a of the overflow pipe 15. Therefore, the backflowed water never flows back to the auxiliary water pipe 4. (Second Embodiment) FIG. 2 shows a structure 21 of the present invention according to a second embodiment. Where the main structure 21 differs from the main structure 11 is that the fixture 27
This is the point where the overflow edge 15a is formed in the annular joint portion 27b. In the figure, 27d is a joint, and 27h is a discharge port. The structure of the main structure 21 other than the difference is substantially the same as that of the main structure 11, and thus detailed description thereof will be omitted. (Third Embodiment) FIG. 3 shows a structure 31 of the present invention according to a third embodiment. Where the main structure 31 is different from the main structure 11, a fixture 37
The annular joint portion 37b of the overflow pipe main body 16 is externally fitted and joined to the overflow pipe main body 16 near the upper end, and the overflow edge 15a is connected to the overflow pipe main body 1.
This is the point formed in 6. In the figure, 37d is a joint, and 37h is a discharge port. The configuration of the present invention structure 31 is substantially the same as that of the above-mentioned present invention structure 11 except for the difference, and thus detailed description thereof will be omitted. (Fourth Embodiment) FIG. 4 shows a structure 41 of the present invention of the fourth embodiment. Where the main structure 41 is different from the main structure 11, a mounting tool 47 is used.
And the overflow tube body 16 are integrally molded,
The point is that the tip end 4a of the auxiliary water pipe 4 is externally fitted and joined to the joint portion 46d of the fixture 47, and the hose band 42 is tightened. 47h in the figure is a discharge port. The configuration of the present invention structure 41 other than the difference is substantially the same as that of the above-mentioned present invention structure 11, and therefore detailed description thereof will be omitted.

[Effect of device]

As described above in detail, the structure of the present invention has the following practical effects. Since the overflow water can be discharged to the overflow pipe without reducing the inlet area of the overflow pipe, even if water is excessively supplied into the tank body due to a failure of the ball tap or the like, the overflow pipe does not function sufficiently. As a result, the situation where the supply water overflows from the tank main body is eliminated. Even if the overflow water rises to the overflow surface, the overflow water never flows back to the auxiliary water pipe because the spout space is formed. When the float valve is opened when the drain pipe is clogged and the water supply pipe is cut off, the spout space is formed even if there is a slight backflow from the overflow edge of the overflow pipe.
Backwater never flows back into the auxiliary water pipe.

[Brief description of drawings]

FIG. 1 (A) is a vertical sectional front view showing an essential part of a first embodiment of the present invention structure, FIG. 1 (B) is a plan view of the same embodiment, and FIG. FIG. 3 is a vertical sectional front view showing an essential part of a third embodiment of the present invention structure. FIG. 4 is a vertical sectional front view showing an essential part of a fourth embodiment of the present invention structure. FIG. 5 is a vertical sectional front view showing the inside of a conventional toilet bowl cleaning tank. 4 …… Auxiliary water pipe, 15 …… Overflow pipe 15a …… Overflow edge, 17 (27,37,47) …… Mounting fixture 17d (27d, 37d, 47d) …… Discharge port S …… Spout space

Claims (1)

(57) [Scope of utility model registration request] 1. In a structure in which an auxiliary water pipe is connected to an overflow pipe erected in a toilet flush tank, a fitting for connecting and fixing the auxiliary water pipe above the overflow edge of the overflow pipe is joined to the overflow pipe, A structure for connecting an auxiliary water pipe in a toilet bowl cleaning tank, characterized in that a spout space is formed between the overflow edge and the discharge port of the auxiliary water pipe.