JP3644220B2 - Toilet drain socket - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a drain socket provided between a drain port of a toilet body and a drain pipe connected to a sewer pipe.
[0002]
[Prior art]
The structure of a conventional drain socket will be described with reference to FIG. 17 and FIG. 18 which is an enlarged view thereof. The drain socket 100 includes a toilet connecting portion 103 into which a drain outlet 102 of the toilet body 101 is fitted, a connecting packing 103a, A drain pipe connecting portion 105 into which a drain pipe 104 connected to sewage is fitted is provided.
Since the drain pipe 104 has a large diameter and a small diameter, cylindrical sections 106 and 107 into which the drain pipe is fitted are formed in the drain pipe connecting section 105 in accordance with the respective diameters.
In addition, when fitting the drain pipe 104 to the cylindrical parts 106 and 107, the adhesive agent is previously apply | coated inside the cylindrical part.
[0003]
FIG. 19 is a view showing another example of a conventional drain socket. In this conventional example, an inward flange portion 108 is formed at the upper end portion of the inner cylindrical portion 107. In this case, the inner diameter of the flange portion 108 and the inner diameter of the drain port 102 are made equal.
[0004]
[Problems to be solved by the invention]
The above-described conventional drain socket has a plurality of problems to be solved. First, in the case where the drain pipe 104 is held at the inner cylindrical portion 107 with the outer diameter restricted, the flushing water from the toilet enters between the cylindrical portion 107 and the drain pipe 104 and leaks water. May cause.
[0005]
Secondly, when the drain pipe connection portion has a double structure and a large-diameter drain pipe is fitted to the outer cylindrical portion 106, an adhesive is applied to the inner side of the outer cylindrical portion 106 in advance. It should be noted that the inner cylindrical portion 107 gets in the way and the adhesive is biased.
[0006]
Thirdly, a larger siphon generation function is required for the drain socket in order to sufficiently exhibit the water washing effect with a small amount of washing water and prevent the return of dirt.
[0007]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the present invention has been made, and for this reason, the drain socket according to claim 1 includes a toilet connecting portion in which a drain port of a toilet is fitted, and a drain pipe connection in which a drain tube is fitted. In the drainage socket of the toilet comprising the plurality of connecting pipes, a plurality of connecting cylindrical portions that are respectively fitted to the outer peripheral surfaces of the plurality of drainage pipes having different diameters are coaxially disposed in the drainage pipe connection portion. A gap shielding member that shields intrusion of cleaning water is provided in a gap with a drain pipe fitted to the inner peripheral surface portion of the innermost connection cylindrical part of the connection cylindrical part, and the gap shielding part is connected to the drain pipe connection part. The gap shielding portion is formed so as to cover the upper end portion and the inner side surface of the drainage pipe in a state where the drainage pipe is fitted to the connection cylindrical portion, and the gap shielding portion is It has an extended part that extends downward from the upper end inside the drain pipe to be connected. Provided with a chamfer at the top of the gap shielding portion, provided with a ledge portion. By setting it as such a structure, it is prevented by the gap | interval shielding member that the washing water from the drain outlet of a toilet bowl penetrate | invades into the clearance gap between the internal peripheral surface part of a connection cylindrical part, and the drain pipe fitted to it.
[0008]
When a plurality of cylindrical portions are provided concentrically at the drain pipe connecting portion, a gap shielding portion is provided further inside the innermost cylindrical portion.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a cross-sectional view of a toilet to which a toilet socket drain socket according to the present invention is applied. A drain pipe connection 4 is provided.
[0019]
The toilet connection part 3 is provided with a connecting packing 3a, and the drain pipe connection part 4 is provided with a cylindrical part 4a in which a large-diameter drain pipe 5a is constrained in the outer diameter and a small-diameter drain pipe 5b in a constraining outer diameter. A cylindrical part 4b is formed concentrically, and a gap shielding part 6 is formed further inside the inner cylindrical part 4b. The presence of the gap shielding portion 6 prevents the cleaning water from entering between the tubular portion 4b and the small-diameter drain pipe 5b.
[0020]
FIGS. 2 to 7 are views showing another embodiment of the drain socket. Among these, the embodiment shown in FIG. 2 also serves as a tubular portion in which the drain pipe connecting portion 4 restrains the drain pipe from its outer diameter. A gap shielding part 6 for preventing water leakage is provided inside the drain pipe connecting part 4.
[0021]
In addition, the drain socket shown in FIG. 3 is provided with the cylindrical portion 4a, the cylindrical portion 4b, and the gap shielding portion 6 in the drain pipe connecting portion 4, and the dimensions of the inner cylindrical portion 4b are the same as those of the outer cylindrical portion 4a. It is set shorter than the dimension. When holding the large-diameter drain pipe 5a by the outer cylindrical portion 4a, it is necessary to apply an adhesive to the inner peripheral surface of the outer cylindrical portion 4a in advance, as in this embodiment. By setting the dimension of the inner cylindrical portion 4b to be short, it becomes easy to apply the adhesive to the inner peripheral surface of the outer cylindrical portion 4a.
[0022]
In the drain socket shown in FIG. 4, the inner cylindrical portion 4b and the outer cylindrical portion 4a have the same dimensions, and a notch 7 is formed in the inner cylindrical portion 4b. By inserting a brush or the like through the notch 7, the adhesive can be easily applied to the inner peripheral surface of the outer cylindrical portion 4a.
[0023]
In addition, the drain socket shown in FIG. 5 has the same inner cylindrical portion 4b and outer cylindrical portion 4a with the same dimensions, and is provided with a gap shielding portion 6 inside the inner cylindrical portion 4b. A notch 7 is formed in the portion 4 b and a notch 8 is formed in the gap shielding portion 6. By doing in this way, even when the gap | interval shielding part 6 is provided, an adhesive agent can be easily apply | coated to the inner side of the inner cylindrical part 4b.
[0024]
The drain socket shown in FIGS. 6 and 7 is provided with a chamfered portion 6a on the upper portion of the gap shielding portion 6 and a shelf portion 6b in a part thereof. In this way, the siphon phenomenon is easily induced by providing the shelf 6b on which the cleaning water collides. In addition, since the filth becomes easy to be caught when the shelf 6b is provided on the entire circumference, it is preferable to provide it on a part.
[0025]
FIGS. 8A to 8D are views showing an example of a combination of a drain outlet and a drain socket for enhancing the water washing function, and the structure shown in FIG. 8A has a throttle portion 9 at the lower end of the drain outlet 2 of the toilet body. In addition, the straight pipe part 10 in which the drain pipe is fitted to the drain socket is provided, the inner diameter (D ′) of the throttle part 9 is made smaller than the inner diameter (D) of the drain port 2, and the inner diameter of the straight pipe part 10 (D) is set to be equal to or smaller than the inner diameter (D ′) of the throttle portion 9.
[0026]
In the structure shown in FIG. 8B, the axis of the straight pipe portion 10 is decentered by (e) from the axis of the drain port 2, and the structure shown in FIG. In the structure shown in FIG. 4D, the axis of the straight pipe portion 10 is eccentric from the axis of the drain port 2 by (e) and the center of the throttle portion 9 is centered on the drain port 2. It is decentered by (E) from the axis. Here, to give specific numerical examples, the inner diameter (D) of the drain port 2 is 60 mm, the inner diameter (D ′) of the throttle part 9 is 56 mm, the inner diameter (d) of the straight pipe part 10 is 55 mm, the straight pipe part. 10 length (L) = 70 mm, eccentricity (e) = 1 mm, and eccentricity (E) = 2 mm.
[0027]
As shown in FIG. 8, a throttle portion 9 is provided at the lower end of the drain port 2, the inner diameter of the straight pipe portion 10 is set to be equal to or smaller than the inner diameter of the throttle portion 9, and is further decentered as necessary, thereby resisting the flow of cleaning water. And the siphon can be made longer, and a conventional cleaning effect equivalent to that of the conventional 80% water amount can be achieved.
[0028]
9 to 12 show another embodiment of the straight pipe portion 10 of the drain socket, in which (a) is a perspective view and (b) is a longitudinal sectional view. As shown in each of these figures, the inner diameter of the upper part 10a of the straight pipe part 10 is set larger than the inner diameter of the lower part 10b, and the boundary part 10c between the inner parts of the upper part 10a and the lower part 10b is formed obliquely, thereby And paper jams can be reduced. In addition, the shape of the boundary part 10c is a linear shape as shown in (FIG. 9), a shape bent upward as shown in (FIG. 10), a shape bent downward as shown in (FIG. 11), ( Steps such as shown in FIG.
[0029]
Further, FIGS. 13 to 15 show another embodiment of the gap shielding portion 6. In the embodiment shown in FIG. 13, the outer diameter of the small-diameter drain pipe 5b is constrained inside the inner cylindrical portion 4b. In addition, a sealing material is provided as the gap shielding portion 6 between the upper end of the drain pipe 5b and the inside of the tubular portion 4b. Further, in the embodiment shown in FIG. 14, a gap shielding portion 6 is provided from the upper end inside the cylindrical portion 4b toward the obliquely lower inner side, and this gap shielding portion 6 covers the upper end of the small-diameter drain pipe 5b. I have to. Further, in the embodiment shown in FIG. 15, the outer diameter of the small-diameter drain pipe 5b is constrained inside the inner cylindrical section 4b, and the ring-shaped packing as the gap shielding section 6 is located at the position where the upper end of the drain pipe 5b contacts. Is provided.
[0030]
Further, FIG. 16 is a view similar to FIG. 1 showing another embodiment. In this embodiment, the toilet body 1, the outer tubular portion 4 a of the drain pipe connecting portion 4, and the inner tubular portion 4 b. Is provided with a vent pipe 200 having one end opened to the space between the inner cylindrical portion 4b and the gap shielding portion 6 and the other end open to the atmosphere outside the pipe. By adopting such a configuration, it is possible to prevent the occurrence of water blockage and siphon sustained sound (gobogobo sound) without affecting the siphon force during toilet flushing. The height of the other end portion of the vent pipe 200 is preferably set to be higher than the reservoir surface level so that the toilet bowl and piping are clogged and washing wastewater does not flow backward through the vent pipe and leak outside. Further, by providing the vent pipe 200 in the drain socket of the toilet, the construction is simplified compared to the conventional method of providing the vent pipe in the building-side piping.
[0031]
【The invention's effect】
As described above, according to the drain socket according to the present invention, since the gap shielding portion is provided inside the innermost cylindrical portion into which the drain pipe is fitted, the washing water from the toilet bowl is connected to the drain pipe and the cylindrical shape. Water can be prevented without intruding between the two parts.
[0032]
Further, according to the drain socket according to the present invention, the length of the innermost cylindrical portion or the gap shielding portion is made shorter than the outermost cylindrical portion or the innermost cylindrical portion or the gap. Since the notch is provided in the shielding part, the adhesive can be easily applied to the inside of the outer cylindrical part.
[0033]
Furthermore, according to the drain socket according to the present invention, since the dimensions of each part of the drain socket are appropriately set, the duration of the siphon can be increased and the cleaning effect can be enhanced.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a toilet using a toilet socket according to the present invention. FIG. 2 is a cross-sectional view showing another embodiment of the drain socket. FIG. 3 is a cross-sectional view showing another embodiment of the drain socket. ] Cross-sectional view showing another embodiment of the drain socket [FIG. 5] Cross-sectional view showing another embodiment of the drain socket [FIG. 6] Cross-sectional view showing another embodiment of the drain socket [FIG. 7] Drain socket shown in FIG. [Fig. 8] (a) to (d) are diagrams showing an example of a combination of a drain outlet and a drain socket for enhancing the water washing function. [Fig. 9] (a) is a diagram of a drain socket connecting portion for reducing clogging of filth. FIG. 10A is a perspective view of a connecting portion of a drain socket for reducing clogging of filth, and FIG. 10B is a sectional view of the connecting portion. (A) is a perspective view of the connection part of the drain socket which reduces clogging of filth, (b) is the connection part [Fig. 12] (a) is a perspective view of a connecting portion of a drain socket for reducing clogging of filth, and (b) is a cross-sectional view of the connecting portion. [Fig. 13] A diagram showing another embodiment of a gap shielding portion. 14 is a view showing another embodiment of the gap shielding portion. FIG. 15 is a view showing another embodiment of the gap shielding portion. FIG. 16 is a view similar to FIG. 1 showing another embodiment. FIG. 18 is a cross-sectional view of the drain socket. FIG. 18 is an enlarged view of the main part of FIG. 17. FIG. 19 is a view similar to FIG.
DESCRIPTION OF SYMBOLS 1 ... Toilet bowl, 2 ... Toilet drain, 3 ... Toilet connection part, 4 ... Drain pipe connection part, 4a ... Outer cylindrical part, 4b ... Inner cylindrical part, 5a ... Large diameter drain pipe, 5b ... A small-diameter drain pipe, 6 ... a gap shielding part, 6a ... a chamfered part, 6b ... a shelf part, 7, 8 ... a notch, 9 ... a throttle part, 10 ... a straight pipe part of a drain socket.

Claims (1)

In the drain socket of a toilet comprising a toilet connecting part to which a drain port of a toilet is fitted and a drain pipe connecting part to which the drain pipe is fitted, the drain pipe connecting part includes an outer peripheral surface of a plurality of drain pipes having different diameters. A plurality of connecting cylindrical portions that are fitted to each other are disposed coaxially, and the cleaning water is disposed in a gap between the inner peripheral surface portion of the innermost connecting cylindrical portion of the plurality of connecting cylindrical portions. The gap shielding portion is formed integrally with the drainage pipe connection portion, and the gap shielding portion is formed in the state where the drainage pipe is fitted to the connection tubular portion. The gap shield is provided so as to cover the upper end and the inner surface of the pipe, and the gap shield includes an extending part that extends downward from the upper end inside the drain pipe to be connected. provided with a chamfered portion at the top, and discharge of the toilet bowl, characterized in that is provided with a ledge portion Socket.

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