JPH077410Y2 - Bathtub drainage connection structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a drainage port fitting structure for a bathtub in which the space between the bottom and the floor is limited.

(Prior art) For example, when installing a ready-made bathtub such as a pan-type bathtub with a wash basin or a unit bath on the floor, the space between the bath bottom and the floor surface is limited, so Simply connecting the drainage system outside the tank with a pipe is not a very good measure in terms of the combined dimensions.

Therefore, an expansion joint is installed between the drainage fitting and the drainage system outside the tank, and each joint of the fitting and the fitting is watertightly fitted and joined, so that the fitting dimension has as much space as possible. Sometimes I have it.

In such a case, conventionally, as seen in, for example, Japanese Utility Model Laid-Open No. 54-43851, each joint on the joint side and the metal fitting side is made of a pipe material
Both were screwed together with PT screws.

(Problems to be solved by the invention) Therefore, when the engaging portion is disengaged, not only a space for simply turning in a tool such as a spanner is required, but also the turning-in operation needs to be repeated many times. , I had to take time to work.

The present invention has been made in order to effectively solve the problems in the conventional drainage port connecting structure of a bathtub, and the purpose thereof is to connect the connecting part of the drain fitting and the connecting part of the expansion joint. It is to provide a structure for connecting a drainage port of a bathtub that can be engaged and disengaged with a linear movement.

(Means for Solving the Problems) In order to achieve the above object, the present invention provides a protrusion for locking the outer periphery of one of the fitting portions on the metal fitting side and the joint side to the other. This is elastically bendable or retractable, and is also capable of returning to its original shape, and the other connecting portion is interposed between a packing provided in contact with the drain port and a holding nut.

(Operation) According to the above means, when the other joining portion is linearly pressed against the one joining portion or is pulled, the pushing force or the attractive force imposes a required elastic deformation on the former inner peripheral projection. If it is sufficient, the outer circumference of the latter will get over this, and then the projection will return to its original shape. Therefore, in the case of pressing, the outer circumference of the latter is locked by the inner peripheral projection of the former, and in the case of pulling, the two are separated from each other.

(Embodiments) Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

First, with reference to FIG. 3 and FIG. 4, an explanation will be given of the overall configuration of the bathroom to which this embodiment is applied.

FIG. 3 is a floor plan of the bathroom, and FIG. 4 is a sectional view taken along line 4-4 of FIG.

In the figure, Rb represents the entire bathroom, and the bathroom Rb is a room in which the base Sl is provided on the fabric foundation Fn on the body side, and the side wall shaft assembly Fw is installed around the unit bathroom Ub. In the bathroom Ub, the bathtub mounting table Pn with a washroom is hung on the base Sl, the bathtub Bt is placed on the bathtub mounting table BP of the bathtub mounting table Pn with a washroom, and the wall panel Pw on the peripheral edge of the pan… To define a room space Sr that has a rectangular shape in plan view, and this is a ceiling panel Pc.
It is closed from the top with…, and is dressed with the entrance door Dr on the front right.

When you open the door Dr of the bathroom Ub and go inside, there is a tiled washroom Ws in the front and a bathtub Bt for your left hand,
A counter Ct is placed horizontally behind the front of the washing yard Ws, and a water collecting port Ow is opened on the floor of the washing basin below the left end of the counter Ct.The water collecting port Ow is an expansion joint from the drainage fitting 10 at the bottom of the bath Bt. The drainage of the bathtub flows in through 20 and flows down to the drainage trap Pi together with the drainage of the washroom.

Here, referring to FIGS. 1 and 2, a detailed description will be given of the connection from the metal fitting 10 to the joint 20.

FIG. 1 is a vertical cross-sectional view around the drainage port, and FIG. 2 is a plan view of the expansion joint side joint portion.

The drainage fitting 10 has a structure in which a wide flange 10b is laid on the outer circumference of the upper edge of the tubular main body 10a, while a rubber packing 11 is fitted on the lower outer circumference of the main body 10a, and this is supported by a press nut 12 from below. , Bathtub Bt Drain outlet that tapers into the bottom of the bath
Place the outer periphery of the flange 10b near the taper start portion of Sn, and further insert the O-ring 13 between the center portion of the tapered surface and the outer periphery of the upper portion of the main body 10a.
The upper surface of the packing 11 is pressed against the lower end of the taper, and the main body 10a is coaxially fitted and held to the drainage port Sn at the bottom of the tank. A water blocking plug 15 made of metal is fitted. In the figure, 10c is a strainer.

On the other hand, the expansion joint 20 has a configuration in which appropriate fitting portions are provided at both ends of the flexible main body 21 that rolls on the bathtub mounting table portion BP, and in the case of the present embodiment, the drainage port-side fitting portion serves as the tank bottom. Drainage port
A joining member 22 having a structure in which an upward wide-mouth portion 22a having a diameter sufficiently larger than the outer periphery of the back side of Sn and a flexible main body 21 having a diameter smaller than that of the Sn and a horizontal tubular portion 22b having a substantially equal diameter are connected by a flat reducer portion 22c.
Has been adopted.

A substantially L-shaped drain pipe 23 is connected to the tip of the flexible body, and the tip of the drain pipe 23 is inserted into the drain trap Pi.

In the above, in the present embodiment, the wide-mouthed portion of the joining member 22
22a is configured as a large-diameter cylindrical annulus 1 having a substantially equal wall thickness, and the substantially central portion 1a in the height direction thereof is recessed in the inner diameter direction at the time of quadrantal points in the circumferential direction, that is, at intervals of 90 degrees. By the inner peripheral surface
The protrusions 2 having a substantially molar shape in plan view are formed at the positions corresponding to 1b, and the lower edge portion 1c of the ring body is throat-shaped by reducing its diameter to the tip end position on the inner diameter side of each protrusion 2 over the entire circumference thereof. The step portion 3 is provided.

Further, a disk-shaped plate body 4 is prepared as a fitting portion on the metal fitting 10 side, and the inner diameter side 4a thereof is externally fitted to the cylindrical main body 10a,
The structure in which the packing 11 and the nut 12 are sandwiched and fixed is obtained, and the outer diameter dimension of the plate body 4 is set to be slightly smaller than the inner diameter of the ring body 1 by the fitting margin.

Then, the ring body 1 is molded with a material softer than the plate body 4,
For example, if the latter 4 is made of stainless steel, the former 1 is made of synthetic resin, and if the latter 4 is also made of synthetic resin, the former 1 is made of softer resin. , The projections 2 on the inner circumference 1b of the annulus 1 can be elastically bent or retracted by a linear push / pull force exceeding a predetermined value. When the push / pull force does not reach the predetermined value, the ring body 1 The elastic force of the material allows each protrusion 2 to return to its original shape.

According to the present embodiment, the ring body 1 at the tip of the joint 20 is simply moved upward from below the metal fitting 10 to be fitted to the plate body 4, and when the ring body 4 and the projections 2 collide with each other, the ring body 1 is fixed. Only by pushing up strongly, the outer circumference 4b of the plate body crosses the protrusions 2 ...
There is also an urging force due to the restoring force of, and the seat is seated on the inner peripheral step portion 3 of the lower edge 1c of the ring body very smoothly. Then, the plate body 4 once reaching this position is locked and held by the projections 2 ... Returning to the original shape.

On the other hand, when the connection between the joint 20 and the metal fitting 10 is released, it is sufficient to apply a strong downward force to the ring body 1 to allow the plate body 4 to escape upwardly from the projections 2.

As described above, in both cases of engaging and disengaging, it is only necessary to move it in the vertical direction, there is no need for turning work, and moreover, one-stroke operation is required. Therefore, not only the work is easy, but also tools etc. are turned in. There is no need to reserve space for it.

In the above description, the fitting shape of each fitting portion on the metal fitting side and the joint side is not the circular shape of the above-mentioned embodiment but a square shape or an elliptical shape, or a guide portion is provided to prevent slippage in the circumferential direction. That doesn't matter.

(Effect of the Invention) As is apparent from the above description, according to the present invention, the inner periphery of one of the joints of the drainage fittings on the bottom of the tank and the expansion joint leading to the drainage system outside the tank is A protrusion for locking the outer circumference is provided, which allows it to elastically bend or retract, and to return to its original shape. Since it is inserted in the
Therefore, there is no need for a turning operation, which is advantageous not only in terms of space but also work is easy and time-consuming. Then, it becomes possible to use the sliding washer for fixing the packing, which is provided to obtain the waterproof performance, as the other joining portion, and by sharing the members, the number of members can be reduced, and the structure is simple and inexpensive. You can In addition, by making the drainage fitting side of the joint part plate-shaped, various drainage diameters can be reduced to 1
Can be used as one joint side fitting member.

[Brief description of drawings]

The drawings show a drainage port fitting structure of a bathtub according to an embodiment of the present invention and a bathroom to which the structure is applied. Fig. 1 is a vertical sectional view around the drainage port, and Fig. 2 is an expansion joint fitting. 3 is a plan view of the portion, FIG. 3 is a plan view of the bathroom, and FIG. 4 is a sectional view taken along line 4-4 of FIG. In the figure, 1 is an annular body that constitutes a joint side fitting member, 1b is an inner circumference thereof, 2 is a protrusion, 3 is a step portion, 4 is a plate body as a fitting side fitting member, 4b is an outer circumference thereof, Reference numeral 10 is a drain fitting, 20 is an expansion joint, 22 is a joint side fitting member, Bt is a bathtub, Pi is a drain trap, Ow is a water collecting port on the side of a washing place, and Sn is a tank bottom sink portion, that is, a drain port.

Claims (5)

[Scope of utility model registration request] 1. A drainage outlet for a bathtub in which a fitting for a drainage fitting fixed to the drainage outlet at the bottom of the tank and a fitting for an expansion joint leading to a drainage system outside the tank are watertightly fitted and joined. In the combined structure, a protrusion for locking the outer periphery of the other portion is provided on one inner periphery of the coupling portion, and the protrusion is elastically bendable or retractable, and the original shape can be returned. A drainage port fitting structure for a bathtub, wherein a joint portion is interposed between a packing provided in contact with the drainage port and a holding nut. 2. The drainage port connecting structure for a bathtub according to claim 1, wherein the one connecting portion is made of a material softer than the other. 3. The drainage port fitting structure for a bathtub according to claim 1, wherein one of the fitting portions has a cylindrical shape and the other has a plate shape. 4. The one coupling part is formed into a substantially cylindrical shape, and the cylindrical wall of the cylindrical coupling part is recessed in the inner diameter direction in appearance to form the projection. The structure for connecting the drainage port of the bathtub described. 5. The drainage outlet fitting structure for a bathtub according to claim 1, wherein a plurality of the projections are provided at a predetermined interval along the inner circumference of the one fitting portion.