JP2002266403A - Structure for connecting washing bowl with draining apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate the drawback of a conventional washing bowl: that waste water and dirt such as fur are likely to collect around the flange part 84 of a draining apparatus 73 making it unsightly and unsanitary, as the flange part 84 is exposed to the drain part 81 of the washing bowl. SOLUTION: The washing bowl is formed by causing the draining apparatus to abut against the back of the drain part from the underside of the drain part, with the drain part provided on the bottom face part of the washing bowl.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shape around a drain hole in a wash bowl or a hand washer and a drainage device which can be installed in the drain hole.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG.
The drainage hole 81 has a stepped portion, and the flange 84 at the upper end of the drainage device 83 is arranged substantially flush with the upper surface of the drainage hole via a packing 82 at the stepped portion, and the drainage plug nut 85 is attached to the outer periphery of the drainage device 83. The flange portion 84 at the upper end of the drainage device 83 is pressed against the packing 82 by tightening to a male screw provided at the bottom. When the drainage device 83 is provided with a vertically movable drainage valve 86, the drainage valve 86 comes into contact with the inner peripheral surface of the flange portion 84 of the drainage device 83 to stop the water, so that the drainage device 83 is separated from the flange portion 86. It is drained by raising it to a higher position. It is known that the drain valve 86 is moved up and down by operating a steel wire.

[0003]

The conventional wash bowl is
Since the flange portion 84 of the drainage device 83 is exposed in the drainage hole portion 81 of the washbasin, dirt such as residual water and scale is accumulated on the upper surface of the flange portion or around the flange portion 84, and it is unsightly and unsanitary. There was a problem that. Therefore,
The present invention has been made to solve the above problems,
An object of the present invention is to provide a connection structure between a wash bowl and a drainage device in which residual water does not accumulate on the bottom surface of the wash bowl.

[0004]

In order to solve the above-mentioned problems, the present invention provides a drainage fixture in the vicinity of a drainage hole on the back side of the bottom of the washbasin. Since the drainage fixture is provided in the vicinity of the drain hole on the back side of the bottom part, it is possible to provide a wash bowl in which residual water does not accumulate on the bottom of the wash bowl.

In a preferred aspect of the present invention, a plurality of insert nuts are arranged on the fixing means. With the arrangement of the plurality of insert nuts, the drainage device can be brought into contact with the back surface of the washbasin, and both can be fixed with screws.

In a preferred aspect of the present invention, the fixing means is provided with a screw on the entire outer peripheral portion of the drain hole.
If a screw is provided on the entire periphery of the drainage hole, the two can be fixed by screwing the drainage device from the back of the washbasin.

In a preferred embodiment of the present invention, a drainage device is provided in which the lower end surface of the drainage hole on the back side of the bottom of the washbasin serves as a water stop portion, and the drainage device comes into contact with the lower end surface of the drainage hole from the backside direction of the bottom portion of the washbasin. Provide a connection structure between a wash bowl and a drainage device. With the above-described connection structure, a connection structure in which dirt such as residual water and water scale is unlikely to accumulate on the connection surface between the sink and the drainage device can be obtained.

In a preferred aspect of the present invention, the drainage device is fixed to a connection surface between the drainage hole and the back surface of the drainage hole via at least a water-blocking member. Since it is fixed via the water blocking member, the washbasin and the drainage device can be connected in a watertight manner.

In a preferred embodiment of the present invention, the inner diameter of the drainage device is made smaller than the inner diameter of the drainage hole portion of the washbasin so that the dish can be removably arranged. By using the difference between the inside diameter of the washbasin and the inside diameter of the drainage device, the perforated plate can be arranged, so that it can be easily attached when necessary.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below more specifically with reference to the drawings. The wash bowl 10 is made of pottery, artificial marble or stainless steel, and has an insert nut around the drain hole 11 on the back of the wash bowl 10.
12 or more are buried in advance. If it cannot be embedded in advance during molding, the nut 12 may be attached to the periphery of the drainage hole 11 on the back surface of the washbasin 10 later by bonding or in the case of stainless steel by welding. From the upper inner periphery to the lower inner periphery of the drain hole 11, the slope is such that the diameter gradually decreases from the upper part to the lower part, and the lower end face 19 of the drain hole 11 is
The drain hole center line 18 is a plane that is a normal line.

[0011] The drainage device 13 is formed with an external thread 17 for screwing and connecting a drainage pipe to a cylindrical main body and a lower part of the main body.
A cross-shaped perforated plate 15 that can catch large debris and hair that may clog the drainage pipe on the inner surface of the body, and an insert nut 12 that penetrates the screw 14 at the top of the body and is embedded in the washbasin 10
And a hole 20 large enough to be fastened. The inner diameter of the drainage device 13 in contact with the lower end surface 19 of the drain hole 11 is substantially the same as the diameter of the lower end surface 19 of the drain hole 11 at the time of contact.

In order to connect the lower end surface 19 of the drain hole 11 of the basin 10 and the upper end surface of the drainage device 13 in a watertight manner, a ring-shaped packing 16 is interposed between the upper surface of the drainage device 13 and the basin 10. When the drainage device 13 is fastened with the screw 14, the drainage hole 11
The lower end surface 19 of the drainage device 13
Is configured such that the lower end surface 19 is a water stop portion without protruding into the drain passage above the lower end surface 19 of the drain hole 11. Of course, as shown in FIG. 3, the packing 31 may be pressed against the corner of the lower end surface of the drain hole 30 to stop the water.

[0013] In order to further improve water tightness, or drain holes
If the lower end surface of 42 is not a flat surface, a stainless steel ring 41 is buried in advance when forming the wash bowl 40, a flat surface is secured, and a packing 43 is interposed to drainage equipment 44.
May be joined. By forming the outer peripheral end of the stainless ring 41 into a folded shape, the burial strength with the drainage hole part 42 is also improved.

Further, an insert nut is arranged at the lower end face of the drain hole 51 of the wash bowl 50, and the packing 54 is interposed with the joint face and the watertight face of the wash bowl 50 and the drainage device 53 being the same plane. Is also good.

In the above, it has been described that the inner diameter of the lower end of the drain hole 11 and the inner diameter of the drainage device 13 in contact with the lower end surface of the drain hole are substantially the same diameter, but as shown in FIG. When the dish 65 is installed, if it is configured to have an outer shape smaller than the inner diameter of the lower end surface of the drain hole 61 of the wash bowl 60 and larger than the inner diameter of the upper end of the drainage device 63 in contact with the lower end surface of the drain hole portion 61, It can be possible.

The method of joining the wash bowl 70 and the drainage device 72 is as follows.
A male screw 73 is formed on the outer periphery of the drain hole 71 with a die, and a female screw that is screwed into the male screw from below is provided above the drainage device 72, so that the drainage device 72 can be attached to the washbasin 70.

[0017]

According to the present invention, with the above-described structure, it is possible to provide a connection structure between a washbasin and a drainage device in which residual water does not accumulate on the bottom surface of the washbasin.

[Brief description of the drawings]

FIG. 1 is a sectional view of a wash bowl drainage portion according to the present invention.

FIG. 2 is a bottom view of the drainage device.

FIG. 3 is a cross-sectional view of FIG. 1 in which a packing insertion position is changed.

FIG. 4 is a half sectional view showing a state where a stainless ring is inserted in FIG. 1;

FIG. 5 is a half sectional view other than FIG. 1 of a sink bowl drainage portion according to the present invention.

FIG. 6 is a sectional view of a specification when a detachable eye plate is inserted in FIG. 1;

FIG. 7 is a cross-sectional view when a screw-in type is used in a method for joining a washbasin and a drainage device according to the present invention.

FIG. 8 is a cross-sectional view of a conventional wash bowl drainage part.

[Brief explanation of sign]

 DESCRIPTION OF SYMBOLS 10 ... Washing bowl 11 ... Drainage hole 12 ... Insert nut 13 ... Drainage equipment 14 ... Screw 15 ... Eye plate 16 ... Packing

Claims (6)

[Claims] 1. A connection structure between a wash bowl and a drainage device, wherein a drainage device fixing means is provided around a drainage hole portion on a back surface side of a bottom portion of the washbasin bowl. 2. The connection structure according to claim 1, wherein said fixing means includes a plurality of insert nuts. 3. The connection structure according to claim 1, wherein said fixing means is provided with a male screw on the entire periphery of the drain hole. 4. A drainage device in which a lower end surface of a drain hole on a back surface side of a bottom portion of a wash bowl is a water stop portion, and a drainage device is in contact with a lower end surface of the drain hole from a back surface direction of the bottom portion of the wash bowl. A connection structure for a washbasin and a drainage device according to any one of claims 1 to 3. 5. The connection structure between a wash bowl and a drainage device according to claim 4, wherein the connection surface between the drainage device and the back surface of the drainage hole is fixed via at least a water blocking member. 6. The washbasin according to claim 1, wherein an inner diameter of the drainage device is smaller than an inner diameter of a drain hole of the washbasin, so that a perforated plate can be removably arranged. Connection structure for drainage equipment.