JPS5934635Y2 - flush toilet - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a flush toilet with a drain trap.

A conventional common toilet of this type has a structure as shown in FIG. It is being said.

Therefore, the structure was not such that it was possible to directly clean the area after the water sealing part 1a.

However, in this type of toilet, foreign objects 5 are most likely to accumulate in the upper end portion 3a of the upwardly bent portion 3 after the sealing portion 1a, and most blockage accidents occur due to the resistance of foreign objects 5 near the upper end portion 3a. This is due to deposits.

However, in the past, it was not possible to directly clean the upwardly bent portion 3, and cleaning work was carried out by inserting a flexible wire brush or the like through the opening 6 of the internal water bed 4 to remove the foreign matter 5. This is a so-called blind operation, and it is difficult to completely remove the foreign object 5 except for a minor blockage accident.

In particular, it was impossible to remove the foreign matter 5 that was deposited on the drain port 2 side from the upper end 3a of the upwardly bent portion 3.

Therefore, when a serious blockage accident occurs, the toilet bowl often has to be destroyed, resulting in a great deal of wasted labor and expense.

In the past, there has been a toilet bowl having a structure as shown in FIGS. 2 and 3, which has been manufactured for the purpose of solving the above-mentioned disadvantages.

In the former case, a cleaning port 8 having a removable lid 7 is provided in a part of the internal water bed 4, so that the upwardly bent portion 3 of the drain trap 1 can be directly cleaned from the cleaning port 8. In the latter, the drain trap 1 portion is constructed in a double structure so that the entire drain trap structure 9 made of stainless steel or the like can be pulled out from the toilet bowl and cleaned.

However, in the former case, a gap or step is created by removably fitting the lid 7 into the cleaning opening 8, and in the latter case, a gap or step is caused by fitting the drain trap structure 9 into the toilet bowl.

Since such gaps and steps are easily clogged with dirt and foreign matter, the above structure causes new inconveniences, and has not been widely used in the past. Ta.

The present invention was devised in view of the above-mentioned circumstances, and aims to provide a flush toilet that can be cleaned extremely easily in the event that a blockage accident occurs after the water sealing part of the drain trap. It is.

An embodiment of a flush toilet to which the present invention is applied will be described below with reference to FIGS. 4 to 6.

First, this toilet bowl 11 is made of, for example, stainless steel, and has a rear end of an upper peripheral edge 12 extending rearward to provide a projecting portion 13.

A drain trap 16 connected to an opening 15 at the rear lower end of the internal water bed 14 tilted rearward downward and a drain port 17 connected to the drain trap 16 are connected to the toilet bowl 1.
It is located on the rear side of 1.

In particular, an upwardly bent portion 18 extending from the water sealing portion 16 a of the drain trap 16 to the drain port 17 and the drain port 17 are arranged below the projecting portion 13 .

The upper end of the drain pipe 19 with the drain port 17 opened at the lower end is extended upward from the upwardly bent portion 18 to form the cleaning passage 2.
4.

The upper end of the passage 24 is connected to the lower surface of the overhang 13, and the cleaning opening 20 is provided in the overhang 13 at the upper end of the passage 24.

Further, a removable lid 21 is attached to the cleaning port 20.

The lid 21 is configured to be removably screwed into the cleaning opening 20 with a screw fitting part 22, and there is a hole on the top surface of the lid 21 for tightening or removing the lid 21 by rotating the lid 21 with a tool. A tool locking recess 23 is provided.

Note that the flushing water is discharged into a flushing water stream 25 provided at the front end of the toilet bowl 11, and a portion is discharged directly onto the internal flushing bed 14, as well as through a channel provided along the lower part of the upper peripheral edge 12. 26, the water is branched into a plurality of parts and discharged onto the inner circumferential surface of the toilet bowl 11 from the surrounding area.

According to the toilet bowl 11 of the present invention configured as described above, when a blockage accident occurs after the water sealing part 16a of the drain trap 16, the lid 21 of the cleaning port 20 is removed and the cleaning port 20
By inserting a brush or the like directly into the upwardly bent portion 18 through the cleaning passage 24, the upwardly bent portion 18 can be directly cleaned.

In addition, foreign matter 28 deposited on the drain port 17 side from the upper end 18a of the upwardly bent portion 18, which is the location where foreign matter is most likely to be deposited, can be cleaned very easily.

Therefore, any stubborn clogging substances that block the water sealing section 16a and beyond can be removed very easily.

In addition, since the cleaning port 20 is not provided in the toilet bowl 11, there is no inconvenience such as dirt or the like clogging or adhering to the gap or step in the fitting part of the lid 21 attached to the cleaning port 20. Therefore, the structure of attaching the lid 21 becomes simple.

Furthermore, since the attachment of the lid 21 is not subject to any structural restrictions such as the drainage performance of the toilet bowl, the attachment can provide an extremely robust structure.

Therefore, it can be used safely even in public toilets and the like where the usage conditions are very rough.

Note that the above-described flush toilet 11 of the present invention is not limited to being made of metal, but may be made of conventionally used ceramics.

Furthermore, the cleaning opening 20 does not necessarily have to be provided on the center line of the toilet bowl 11, and the cleaning passage 24 does not necessarily have to be vertical.

Therefore, it is possible to provide the cleaning port 20 at a horizontal position of the toilet bowl 11 by tilting the cleaning passage 24 in the lateral direction of the toilet bowl 11, and of course, it is possible to provide the cleaning port 20 at a position away from the toilet bowl 11. As mentioned above, according to the flush toilet according to the present invention,
Since the area after the water sealing part of the drain trap, especially the area around the upward bend from the water sealing part to the drain outlet, can be cleaned very easily directly from the cleaning opening, even extremely stubborn clogging substances can be removed very easily. I can do it.

Moreover, there is no inconvenience such as dirt getting stuck or stuck to the fitting part of the cleaning port lid, and the installation of the lid has the great advantage that the part can be made into an extremely robust structure. be.

[Brief explanation of drawings]

1 to 3 are partially cutaway side views illustrating a conventional example. Figures 4 to 6 show an embodiment of a flush toilet to which the present invention is applied, in which Figure 4 is a plan view, Figure 5 is a partially cutaway side view, and Figure 6 is a partially cutaway side view. FIG. 3 is an enlarged cross-sectional view of main parts. Also, in the symbols used in the drawings, 11 is a toilet bowl, 1
2 is the upper periphery, 13 is the overhang, 16 is the drain trap, 1
6 a is a water sealing part, 17 is a drain port, 18 is an upwardly bent part,
19 is a drain pipe, 20 is a cleaning port, 21 is a lid, 24 is a cleaning passage, and 28 is a foreign object.

Claims (2)

[Scope of utility model registration request] (1) The drain trap and the drain outlet are arranged at the rear side of the toilet bowl, and a cleaning passage is provided that extends upward from the upper end of the upwardly bent part from the water sealing part of the drain trap to the drain outlet, and the upper end of the passage is provided. A flush toilet with a cleaning port. (2) The rear end of the upper periphery of the toilet bowl is extended rearward to provide an overhang, the upper end of the passage is connected to the overhang, the cleaning opening is provided on the overhang, and the cleaning opening is connected to the overhang. A flush toilet according to claim 1, which has a removably attached lid.