JP5939481B2 - Drainage structure - Google Patents

Description

  The present invention forms a depression in the bottom of a tank such as a bathtub or a basin, and inserts a drain fitting into a drain provided in the depression, and the drain edge is connected to the drain fitting and the drain pipe joint. It is related with the drain outlet structure pinched by.

Conventionally, a drain outlet such as a bathtub or a basin is formed with a depression at the bottom of the tank, a drain outlet is provided in the depression, and a drain fitting is inserted into the drain outlet to be screwed together. Thus, the flange portion of the drain fitting is buried in the depressed portion.
However, a gap is formed between the flange part of the drain fitting and the recessed part of the tank bottom, so that dirt and dust can easily accumulate. It was inconvenient.

  Therefore, around the drain outlet provided on the bottom of the tub or basin or the like, a depression is formed as a downward slope in the direction of the drain, and the slope facing this downward slope is on the lower surface. The drain fitting with the formed flange part is inserted into the drain outlet, and the downward slope of the recessed part of the tank bottom and the slope of the lower face of the flange part of the drain fitting are joined by fastening the drain pipe joint etc. There has been a method of preventing gaps from being accumulated, and therefore, since there is no gap, it is possible to prevent the accumulation of scales and dust, the generation of mold, etc. (Patent Document 1).

By the way, if it is a large water tank such as a bathtub or a water tank such as a ceramic basin, it is difficult to obtain the position accuracy of the drain outlet on the bottom of the tank, and there is insufficient water tightness. In connection with the fastening of, the load for that fastening is borne, especially when the water tank is made of ceramic, the drainage edge is sometimes chipped or cracked, and it can withstand enough In order to obtain the flange part of the drain outlet metal fitting, it had to be supplemented and reinforced.
Accordingly, a drainage fitting having a flange portion having a certain thickness and durability is used, and the drainage fitting is inserted into the drainage via the upper packing, and the drainage fitting that is inserted is inserted. In addition, a fastening member such as a drainage pipe joint is fastened through a lower packing. It is already known that the drain port edge is sandwiched and fixed by such a drain port fitting and a fastening member such as a drain pipe joint (Patent Document 2).

  Japanese Utility Model Sho 62-125173   Reality 6-14682

  A depression is formed around the drain outlet provided on the bottom of the tank, and a downward inclined surface in the direction of the drain outlet is formed, and the lower surface of the flange portion of the drain fitting inserted into the drain outlet is a downward inclined surface of the depression. Even if these joints between the inclined surface of the depression and the inclined surface of the lower surface of the flange portion of the drain fitting are made to be opposed to each other, the flange portion of the drain fitting has a drain outlet. Despite the need to have enough strength to hold the edge, the flange has a slanted bottom surface that reduces the strength and pinches the drainage edge. By fastening, the tongue-like tip of the flange portion is pressed and deformed, and there is a possibility that the flange will be rolled up, which is inconvenient.

  In addition, there is a variation in the joining between the descending inclined surface of the depression and the slope of the lower surface of the flange portion opposite to this, and in order to obtain the watertightness of the joining due to the variation, it is necessary that a packing be interposed, As a result, a gap due to the packing was generated, and it was not a countermeasure for eliminating the gap.

  Therefore, in the end, it is forced to use a drain fitting provided with a flange portion having a strength that can withstand clamping, and the flange portion of such a drain fitting inserted through the drain port is, The drainage port edge is clamped and fixed between the flange part of the drainage port fitting and the fastening member such as the drainage pipe joint through the upper packing and the lower packing so that the water tightness and buffering property with the drainage port edge can be obtained. Will be. However, a gap is formed between the flange portion of the drain fitting and the recessed portion of the tank bottom, which is not good.

  The present invention provides strength and water tightness that the flange portion of the drain fitting can withstand sandwiching the drain rim, and closes the gap generated between the flange portion of the drain fitting and the recessed portion of the tank bottom. It is an object of the present invention to obtain a drain outlet structure that is covered, can eliminate accumulation of scales and dust, and generation of mold and the like.

The drain port structure of the present invention is provided with a drain port in a depression formed in the bottom of the tank, and the drain port edge is attached to the drain port edge with a flange member of the drain port fitting and a fastening member such as a drain pipe joint. In the drainage port structure that is clamped and fastened via the packing, a thin slip washer is provided between the flange part of the drainage fitting and the packing, and the outer periphery of the slip washer is extended to The flange piece is formed by closing and covering the gap generated between the flange portion and the recessed portion of the tank bottom .

In the drain outlet structure of the present invention, a flange piece covering the packing is formed by extending the outer periphery of the thin slip washer, and the edge of the flange piece causes a gap between the flange portion of the drain fitting and the recessed portion of the tank bottom. In order to close and cover the gap generated in the wall, the flange edge that reaches the wall surface of the depression is slightly deformed by tightening the drain fitting and slightly overlaps the wall of the depression at the bottom of the tank. A familiar width is formed .

The drain port structure of the present invention has a convex portion formed on the back surface of the flange portion of the drain port fitting, and is provided with a thin slip washer sandwiched between the flange portion of the drain fitting and the packing, and the slip washer is inclined. In order to set it to a position where it can only sit, the end of the slip washer is configured to abut against the convex portion .

  The drain port structure of the present invention is such that a thin slip washer whose outer periphery is extended to form a flange piece is sandwiched between the flange portion of the drain port fitting and the packing, and the flange piece is the flange portion of the drain fitting. It is possible to close and cover the gap formed between the dent and the depression. And when the drain fitting is tightened, the flange piece of the thin plate is slightly deformed so that the gap between the recessed portion of the tank bottom due to variation can be made inconspicuous, and accumulation of dirt, dust, etc. generated in the gap, Prevents mold and the like, and closes and covers the gap, so it looks good.

  The drain port structure of the present invention has a convex portion formed on the back surface of the flange portion of the drain port metal fitting, and a thin slip washer sandwiched between the flange portion of the drain port metal fitting and the packing has its end portion on the back surface of the flange portion. The slip washer is positioned well in contact with the convex part, and the slip washer is accurately positioned without tilting to the setting on the back surface of the flange part of the drainage fitting. It is possible to easily close and cover a gap generated between the flange portion and the recessed portion of the tank bottom.

  It is sectional drawing of the state which mounted | wore with the drain outlet metal fitting in the depression part formed in the tank bottom.   It is sectional drawing of the drain port metal fittings, slip washer, etc. which decomposed | disassembled the drain port structure.   It is an expanded sectional view which shows the state of the flange part by which the drain outlet metal fitting was mounted | worn by the depression part formed in the tank bottom.   It is an expanded sectional view showing the state where the drain fitting was tightened and the flange piece was slightly deformed.

The drain outlet structure of this invention is demonstrated based on drawing.
As shown in FIGS. 1 and 2, a depressed portion 11 is formed on the bottom of a tank such as a bathtub or a basin, and a drain port 12 is provided in the depressed portion.
A packing 3 is attached to the drain port edge 13 of the drain port 12, and the drain port edge 13 to which the packing is mounted is connected to the flange portion 2 of the drain port fitting 1 and the drain pipe joint 4 via the slip washer 5. It is clamped with.
As shown in FIG. 3, a slip washer 5 made of stainless steel is sandwiched between the flange portion 2 of the drain fitting 1 and the packing 3, and the outer periphery of the slip washer is extended to form a flange piece 51. Thus, the gap 14 formed between the flange portion 2 of the drain fitting and the recessed portion 11 of the tank bottom is closed and covered. The drainage fitting 1 is inserted into the drainage outlet 12 so that the flange portion 2 is buried in the depression 11, and a fastening member such as a drainage pipe joint 4 is screwed and fastened to the drainage fitting 1 protruding to the back surface of the tank bottom. Then, the drainage port edge 13 is sandwiched and fixed by the fastening member and the flange portion 2 of the drainage fitting 1.

A convex portion 21 is formed on the rear surface of the flange portion 2 of the drain fitting 1, and a stainless steel thin slip washer 5 sandwiched between the flange portion 2 and the packing 3 of the drain fitting 1 has its end 511 as a flange portion. 2 The position is satisfactorily set in contact with the convex portion 21 on the back surface. The slip washer 5 can be easily set without being inclined to the setting on the back surface of the drain fitting 1, and is thus accurately positioned, so that the flange portion 2 of the drain fitting 1 and the recessed portion 11 at the bottom of the tank are provided. It is possible to easily close and cover the gap 14 generated between the two.
Needless to say, the slip washer of the stainless steel thin plate may be a hard synthetic resin thin plate washer.

A drainage port 12 is provided in a depression 11 formed on the bottom of the tank, and a drainage port edge 13 is attached to the flange 3 of the drainage metal fitting 1 and a drainage pipe joint 4 via a packing 3 and a slip washer 5 attached thereto. The fastening member is clamped and fastened.
When the drain edge portion 13 is clamped and fastened by the flange portion 2 of the drain fitting 1 and the fastening member such as the drain pipe joint 4, the flange portion 2 of the drain fitting 1 and Since the slip washer 5 sandwiched between the packing 3 and the drain washer 1 and the packing 3 is individual, the slip washer 5 is in contact with the convex portion 21 on the back surface of the flange 2 of the drain fitting 1. The position of the seat without tilting is set, and the edge 512 of the flange piece 51 of the slip washer 5, which is a thin plate, is slightly deformed by tightening the drainage fitting, and the depression 11 at the bottom of the tank where the variation occurs Therefore, it is possible to make the gap 14 between the depression and the concavity inconspicuous, prevent the accumulation of dirt and dust, mold and the like generated in the gap 14, and close and cover the gap 14. I can do it well.

DESCRIPTION OF SYMBOLS 1 Drain outlet metal fitting 11 Depression part 12 Drain outlet 13 Drain outlet edge part 14 Crevice 2 Flange part 21 Protrusion part 3 Packing 4 Drain pipe joint 5 Slip washer 51 Flange piece 511 End part 512

Claims (3)

A drain outlet is provided in the recessed part formed at the bottom of the tank, and the drain edge is clamped with a flange attached to the drain fitting and a fastening member such as a drain pipe joint via a packing attached to the drain edge. In the drain outlet structure that is worn, a thin slip washer is provided between the flange part of the drain fitting and the packing, and the outer periphery of the slip washer is extended so that the flange part of the drain fitting and the bottom of the tank are depressed. A drain outlet structure formed by forming a flange piece that covers and covers a gap generated between the first and second portions . The outer circumference of the thin slip washer is extended to form a flange piece that covers the packing, and the edge of this flange piece closes and covers the gap between the flange part of the drain fitting and the recessed part of the tank bottom. In order to make it, the end of the flange piece that has reached the wall surface of the depression is slightly deformed by tightening the drainage fitting, forming a familiar width that slightly overlaps the wall of the depression at the bottom of the tank The drain outlet structure according to claim 1. A convex portion is formed on the back surface of the flange portion of the drain fitting, and a thin slip washer sandwiched between the flange portion of the drain fitting and the packing is provided, and the slip washer is set in a comfortable position without tilting. In order to make it like this, the drain outlet structure according to any one of claims 1 to 2, wherein an end of the slip washer is brought into contact with the convex portion .

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