JP4374411B2 - Draining eye plate - Google Patents

Description

The present invention relates to a drainage pan used in a drain outlet of a wash basin, bathroom, kitchen or the like.

Conventionally, drainage pans described in a) and a) below are known.
A) The conventional drain pan shown in FIG. 11 is comprised from the main-body part described below, an opening part, and a float packing.
The main body is a flat plate-like body having a circular shape in plan view, and is watertightly attached to drain outlets of various drainage devices. Moreover, the axial part hang | suspended below is provided in a main-body part lower surface. Further, the shaft portion constitutes a flange portion protruding in the side surface direction. Further, the flange portion protrudes in the outer peripheral direction in the cross-sectional view and has a concentric shape with the main body portion in the plan view.
A plurality of openings are opened in the main body.
The float packing has a circular ring shape with an opening at the center in plan view, has a specific gravity lighter than 1, and is arranged so as to be movable up and down with the shaft portion as its axis.
As the action of this drain pan, as shown in FIG. 11 (a), the float packing is normally lowered by its own weight, and the lower surface of the float packing is disposed in contact with the flange portion, If there is drainage from the upper surface side of the main body, it is drained to the lower surface side of the main body through the opening.
Also, for the backflow water from the lower surface of the main body, as shown in FIG. 12 (b), the float packing is configured with a specific gravity lighter than 1, so the float packing floats with the backflow water, The float packing is brought into contact with the main body. At this time, since the opening is watertightly closed by the float packing, the backflow water does not flow back to the upper surface side of the main body.
When the backflow water is settled, the float packing descends due to its own weight and comes into contact with the flange portion.
B) The conventional drain pan shown in FIG. 12 is composed of a main body having the same configuration as the above a) and an opening, and further has a float packing as described below.
The float packing has a circular ring shape having an opening at the center in plan view, and is configured to have a specific gravity lighter than 1, and is arranged to be movable up and down with a shaft portion as its axis. Further, a convex groove is provided on the upper surface thereof so as to protrude on a concentric circular axis, and this convex groove abuts on the peripheral edge of the opening of the main body when the float packing floats.
As the action of this drain pan, as shown in FIG. 12 (a), the float packing is normally lowered by its own weight, and the lower surface of the float packing is disposed in contact with the flange portion, If there is drainage from the upper surface side of the main body portion, the water is drained from the upper surface side of the main body portion to the lower surface side through the opening.
In addition, for the backflow water from the lower surface of the main body, as shown in FIG. 12B, the float packing is configured with a specific gravity lighter than 1, so the float packing floats with the backflow water, The convex groove of the float packing is brought into contact with the contact surface on the peripheral edge of the opening on the lower surface of the main body. At this time, since the opening is watertightly closed by the convex groove of the float packing, the backflow water does not flow back to the main body.
When the backflow water is settled, the float packing descends due to its own weight and comes into contact with the flange portion.
JP 2002-88856 (see FIGS. 1 and 2)

By the way, the conventional drainage pan has the following problems a) to c).
a) Since the drain pan in the configuration of a) has a large contact area between the main body contact surface and the float packing, when the float packing descends due to its own weight, the float packing is lowered by the surface tension of the water. In some cases, it was not possible to descend with its own weight.
b) In response to the problem a), the drainage pan with the structure a) has a convex groove on the upper surface of the float packing, which is used as a contact surface. It is difficult to be affected by the surface tension of water and solves the problem a). However, when the center of the float packing is decentered with respect to the shaft or the like and the position shifts, the convex groove is provided in the float packing, so that the convex groove is also decentered, and the contact surface of the main body The convex groove does not abut, for example, the abutment surface of the convex groove is arranged in the opening, and a gap is generated and the abutment surface is not formed. There wasn't.
c) In the drain pan with the constructions a) and b), when the normal operation of the drainage is completed, the float packing descends by its own weight. However, if the waste water contains a large amount of detergent, a large amount of foam is generated in the waste water. Since these bubbles have a specific gravity less than 1, when the flow of the drainage becomes weak, it rises from the drainage, becomes difficult to flow out together with the drainage, and accumulates in large quantities on the lower surface side of the main body of the drainage pan. As a result, there is a problem that even if the foam pushes up the float packing and the float packing closes the opening and drainage occurs from the upper surface side of the main body, it cannot be drained to the lower surface side of the main body.
d) In addition, since the shaft part of the drainage pan with the constructions a) and b) is the axis of the lifting / lowering action of the float packing, the water debris contained in the drainage and the dust in the drainage are contained in the shaft part. If stuck, the inner diameter of the float packing will be caught by the dirt or dust stuck to the shaft, and it will not operate smoothly.For example, the float packing may be placed at an angle. It was.
e) In addition, the drainage pan with the constructions of a) and b) is concentric with the main body part that protrudes from the flange part of the shaft part in the outer peripheral direction. Due to the shape, the water pressure of the reverse flow of the drainage is often obstructed by the flange portion, and the float packing may not operate smoothly.

From the above, the present invention provides the following 1. To 3. The purpose is to provide.
1. A drainage pan that stops well when drainage flows backward.
2. Drainage pan that can drain the drainage from the top of the drainage pan to the bottom of the drainage pan even if bubbles accumulate on the bottom of the drainage pan.
3. Drain plate with no float packing.

The drainage pan of the present invention according to claim 1 includes a main body (1) attached to a drain outlet, an opening (2) opened in the main body (1), and a periphery of the opening (2). Floating packing (3) that abuts and closes the opening (2), and in the drainage pan, the abutment surface (4) on which the float packing (3) of the main body (1) abuts is a side surface. It is a drainage eye dish characterized by comprising a curved view.

The drainage pan of the present invention described in claim 2 is characterized in that the abutment surface (4) is formed by projecting the peripheral edge of the opening (2). It is an eye plate.

In the drain pan of the present invention according to claim 3, the deflection suppressing portion (5) of the float packing (3) is provided in the vicinity of the upper end (4a) of the contact surface of the main body portion (1). The drainage pan according to paragraph 0006, wherein

The drainage pan of the present invention according to claim 4 is characterized in that the opening (2) is provided only in the vicinity of the lower end (4b) of the contact surface of the main body (1). [0007] The drainage pan according to any one of [0007].

In the drainage pan of the present invention according to claim 5, the main body (1) is a member provided with a shaft portion (6) in the vertical direction, and the shaft portion (6) has a ring shape in plan view. The float packing (3) is provided so as to be movable up and down along the shaft portion (6), and a convex portion (7) that contacts the inner peripheral portion of the float packing (3) is formed on the outer surface of the shaft portion (6). The drainage pan according to any one of paragraphs 0005 to 0008, which is characterized in that

In the drain pan of the present invention according to claim 6, a flange portion (8) is formed at the lower end of the shaft portion (6) toward the outer periphery, and the flange portion (8) is a notch portion (9). The drainage pan according to paragraph 0009, characterized in that:

The drainage pan of the present invention has the following effects.
In the drain pan according to the present invention, the float packing (3) has a specific gravity lighter than 1, and the float packing (3) is bent by its own elasticity due to the water pressure of the backflow water and the main body (1) is curved. By abutting along the surface (4), the opening (2) was closed in a watertight manner, and the backflow of drainage did not flow back to the upper surface side of the main body (1).
Further, the drainage pan of the present invention has a float packing (3) even when bubbles such as detergent in the drainage are generated on the back side of the main body (1) and the float packing (3) does not fall due to its own weight. ) And the upper end (4a) of the contact surface, the drainage from the upper surface side of the main body (1) can be drained to the lower side of the main body (1) through this gap.
Further, in the drain pan of the present invention, the opening (2) is provided only in the vicinity of the lower end (4b) of the contact surface and not in the vicinity of the upper end (4a) of the contact surface. Even when the water pressure is low, the backflow of drainage hardly occurs.
Further, the drain pan of the present invention is provided with the convex portion (7) on the shaft portion (6), so that the scale (6) is smoothened with water and waste water adhering to the shaft portion (6). Even if lost, there is a gap between the inner diameter of the float packing (3) and the shaft (6), so the area where they come into contact is reduced, friction is reduced, and the float packing (3) moves smoothly. It came to work.
Further, the drainage pan of the present invention is configured with the notch (9) in the flange (8), so that the water pressure of the backflow water is easily applied to the float packing (3) as compared with the conventional example, The rise of the float packing (3) was simplified. For this reason, the float packing (3) can be raised more easily and smoothly.
Moreover, the drainage pan of this invention adhered to the axial part (6) by arrange | positioning the notch part (9) of a flange part (8) in the part in which the said convex part (7) is not comprised by the top view. Water or wastewater fell as it was and flowed into the drainage without being stored on the top surface of the flange (8), and the float packing (3) was able to operate smoothly.

As shown in FIGS. 1 to 8, the drain pan according to the present invention has a main body (1), an opening (2), an abutment surface (4), a shaft (6), and a flange as described below. A part (8), a deflection suppressing part (5), and a float packing (3).
Moreover, as shown in FIG. 10, the drain pan of this embodiment is attached to a drain outlet for draining drainage from the bathtub in the bathroom and drainage from the bathtub mounting pan.
The main body (1) has a circular shape, and has a watertight member (10) such as packing on the outer periphery thereof, and is watertightly attached to the drains of various drainage devices. In addition, the lower surface of the main body (1) is provided with a shaft (6) suspended downward. Further, the lower end of the shaft portion (6) is formed with a flange portion (8) protruding in the side surface direction.
A plurality of openings (2) are opened only in the vicinity of the lower end (4b) of the contact surface described later of the main body (1).
The abutment surface (4) is curved upwardly toward the left and right ends in side view centering on the axis of a shaft portion (6), which will be described later, that protrudes from the periphery of the opening (2) on the back side of the main body (1). Composed.
The float packing (3) has a circular ring shape with an opening at the center in plan view, has a specific gravity lighter than 1, and is arranged to be movable up and down with the shaft portion (6) as its axis. Further, when the float packing (3) moves up, it comes into contact with the contact surface (4) of the opening (2).
The shaft portion (6) has a cylindrical shape and is suspended downward from the center of the back surface of the main body portion (1). Further, a plurality of convex portions (7) are provided on the side surface of the shaft portion (6) along the axial direction.
The flange portion (8) is configured to protrude outward from the lower end of the shaft portion (6). This flange portion (8) has a notch (9) to prevent the float packing (3) from coming off. Furthermore, this notch part (9) is arrange | positioned in the part in which the said convex part (7) is not comprised by the upper surface view.
The deflection suppressing portion (5) is configured to protrude from a position other than the opening (2) on the back surface of the main body (1), and prevents the float packing (3) from being bent excessively.

In the drain pan of this embodiment, as shown in FIG. 2, the float packing (3) is lowered by its own weight in normal times, and the lower surface of the float packing (3) is in contact with the upper surface of the flange portion (8). If there is drainage from the upper surface side of the main body (1), the water is drained to the lower surface side of the main body (1) through the opening (2).
Moreover, as shown in FIG. 6, since the float packing (3) is comprised with the specific gravity lighter than 1 with respect to the backflow water from the lower surface of a main-body part (1), a float packing (3) is backflow water. Accordingly, the float packing (3) having elasticity is bent by the water pressure of the backflow water, and comes into contact with the curved surface of the contact surface (4) of the main body (1). At this time, since the opening (2) is watertightly closed by the float packing (3), the backflow water does not flow back to the upper surface side of the main body (1).
When the backflow water is settled, the float packing (3) is lowered by its own weight and is brought into contact with the flange portion (8) as shown in FIG.
Moreover, the deflection | deviation suppression part (5) is comprised in the part in which the contact surface (4) of a main-body part (1) does not exist. Without the deflection suppressing portion (5), when the backflow water pressure is high as shown in FIG. 8, the float packing (3) is bent too much by the water pressure and the float packing (3) and the lower end of the contact surface ( 4b), the gap (11) is generated, but by providing the deflection suppressing portion (5), the float packing (3) effectively abuts against the deflection suppressing portion (5) as shown in FIG. Therefore, it is possible to prevent the gap (11) from being generated between the contact surface (4) and the float packing (3).
Further, when bubbles such as detergent in the drainage are generated on the back side of the main body (1) and the float packing (3) is pushed up and the float packing (3) is not lowered by its own weight, the float packing (3 ) Contacts the lower end (4b) of the contact surface. However, since the foam pressure is almost 0 compared to the water pressure, the float packing (3) cannot be bent, and the float packing (3) has a flat surface as shown in FIGS. Is kept. For this reason, a gap is formed between the float packing (3) and the upper end (4a) of the contact surface, and the drainage from the upper surface side of the main body (1) flows to the lower side of the main body (1) through this gap. Drained. Therefore, even if the float packing (3) is not lowered by the foam, the drainage from the upper side of the drainage pan can be drained to the lower side of the drainage pan.
Further, as shown in FIGS. 3 and 4, the opening (2) is provided only in the vicinity of the lower end (4b) of the contact surface, and is not provided in the vicinity of the upper end (4a) of the contact surface. When the pressure of the backflow of the drainage is weakened, the force that bent the float packing (3) becomes weak, and the float packing (3) becomes almost flat as shown in FIGS. At this time, the gap between the float packing (3) and the contact surface (4) is maximum, but there is no opening (2) in the vicinity of the upper end of the contact surface (4), so no drainage occurs. Even when the water pressure of the backflow is small, the backflow of drainage hardly occurs.
Further, as shown in FIG. 4, by providing the projection (7) on the shaft portion (6), scale or drainage dust adheres to the shaft portion (6), and the smoothness of the shaft portion (6) is ensured. Even if lost, there is a gap between the float packing (3) and the inner diameter of the float packing (3), so that the contact area between the two becomes smaller, the friction is reduced, and the float packing (3) operates smoothly in the vertical direction.
Further, as shown in FIG. 4, the notch (9) is formed in the flange (8), so that the water pressure of the backflow water is easily applied to the float packing (3) as compared with the conventional example. The raising of the packing (3) is simplified. For this reason, the float packing (3) can be raised more easily and smoothly.
Moreover, as shown in FIG. 4, the notch part (9) of the flange part (8) is arrange | positioned in the part in which the said convex part (7) is not comprised by the upper surface view. For this reason, the scale or drainage dust adhering to the shaft portion (6) falls as it is and easily flows into the drainage without being stored on the upper surface of the flange portion (8).

The embodiment of the present invention is as described above, but the present invention is not limited to the above embodiment, and can be freely changed without departing from the scope of the invention. For example, although the convex contact surface (4) is used for the main body (1) in the above embodiment, the float packing (3) and the contact surface (4) at the periphery of the opening (2) are used in the present invention. ) Is curved, there is no problem. As shown in FIG. 9, the entire back surface of the main body (1) constitutes a curve and a contact surface (4) with the float packing (3) There is no particular problem.

Moreover, in the said Example, although the drainage pan of this invention is provided in the drain outlet of the bathroom, even if it is provided in the drain outlet other than a bathroom, there is no problem in particular.

Moreover, in the said Example, although the axial part (6) is comprised in the drainage pan, even if it is a drainage pan without a shank (6), there is no problem in particular.

Moreover, in the said Example, although the circular drainage pan is used, it is possible to change freely in the range which does not change the summary of invention.

It is B-B 'sectional drawing when the float packing rises with foam etc. of the drainage pan of the present invention. It is B-B 'sectional drawing when the float packing descend | falls by dead weight of the drainage pan of this invention. It is a top view of the drainage pan of the present invention. It is a bottom view of the drainage pan of the present invention. It is B-O-B 'sectional drawing when the float packing rises with foam etc. of the drainage pan of the present invention. It is B-O-B 'sectional drawing when the float packing of the drainage pan of this invention rises by the backflow of drainage. It is B-B 'sectional drawing when a float packing raises and contact | abuts to the deflection | deviation suppression part of the drainage pan of this invention. It is B-B 'sectional drawing which shows the time of the float packing rising at the time of not comprising a deflection | deviation suppression part to the drainage pan of this invention by reverse flow. It is sectional drawing which shows the other Example of this invention. It is sectional drawing which shows the usage example of this invention. It is sectional drawing which shows a prior art example. It is sectional drawing which shows a prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Main-body part 2 Opening part 3 Float packing 4 Abutting surface 4a Upper end 4b of abutting surface 5 Lower end of abutting surface 5 Deflection suppressing part 6 Shaft part 7 Protruding part 8 Flange part 9 Notch part 10 Watertight member 11 Gap

Claims (6)

A main body (1) attached to the drain;
An opening (2) opened in the main body (1);
A float packing (3) that contacts the periphery of the opening (2) and closes the opening (2);
In the drainage pan composed of
A drainage pan characterized in that the abutment surface (4) with which the float packing (3) of the main body (1) abuts is curved in side view. The drainage pan according to claim 1, wherein the contact surface (4) is formed by projecting the periphery of the opening (2). The drainage pan according to claim 2, wherein a deflection suppressing portion (5) of the float packing (3) is provided in the vicinity of the upper end (4a) of the contact surface of the main body portion (1). The drainage pan according to any one of claims 1 to 3, wherein the opening (2) is provided only in the vicinity of the lower end (4b) of the contact surface of the main body (1). . The main body portion (1) is a member having a shaft portion (6) in the vertical direction, and the shaft portion (6) is provided with a float packing (3) having a ring shape in plan view along the shaft portion (6). 5. A convex portion (7) configured to be movable up and down and configured to abut on an inner peripheral portion of the float packing (3) on an outer surface of the shaft portion (6). The drainage eye dish as described in any one. The lower end of the shaft portion (6), is configured flange portion (8) toward the outer circumferential direction, and the flange portion (8) of claim 5, characterized in that to constitute a notch (9) drainage eyes dish.

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