JP6419509B2 - Drainage equipment - Google Patents

Description

  The present invention relates to a drainage device that is attached to an opening provided in a tank body such as a bathtub or a wash basin and communicates the tank body and a drain pipe.

  In general, a drain outlet such as a bathtub or a wash basin is configured by attaching a drain outlet connected to a drain pipe to an opening provided at the bottom of the tank. Conventionally, a drainage mouthpiece is disposed on the drainage pipe side by disposing a drainage pipe on the drainage pipe side, a first member including a flange portion that contacts the opening periphery of the tank bottom and a trunk portion that is arranged to pass through the opening of the tank bottom. A second member that is partly configured, and by screwing the threaded portions respectively formed on the body portion and the second member of the first member, the flange portion of the first member and the second member It is fixed to the tank so as to sandwich the bottom of the tank (for example, see Patent Document 1).

JP 2002-54206 A (page 3, FIG. 2)

  In the drainage mouthpiece such as Patent Document 1, a waterproofing packing is sandwiched between the flange portion of the first member and the opening periphery of the tank bottom, and the flange portion of the first member depends on the thickness of the packing. A gap is easily formed between the bottom of the tank. Therefore, the gap between the drainage outlet and the bottom of the tank and the water that enters the surrounding area stays, and dirt and dust are likely to accumulate. There was a problem.

  The present invention has been made paying attention to such a problem, and an object of the present invention is to provide a drainage device that prevents the accumulation of scale and dust around the drainage outlet and the generation of mold.

In order to solve the above problems, the drainage device of the present invention is:
In a drainage device equipped with a drainage opening attached to an opening formed in the tank bottom and connected to a drainage channel constituting pipe,
The drainage opening includes a flange portion that comes into contact with the opening periphery of the tank bottom from above, and a tubular body portion that is disposed so as to be inserted through the opening and forms a water channel by an inner periphery thereof. In the drainage tool, a groove is formed from the outer edge side portion of the flange portion to the outer periphery of the trunk portion,
An upward flange portion is formed at the upper end of the drainage pipe constituting pipe, and a rising piece extending upward is formed on the outer edge of the upward flange portion,
The tank bottom is formed with a depressed portion that is partially depressed downward, and between the upward flange portion of the drainage channel constituting pipe and the tank bottom, the upward flange portion of the drainage channel constituting tube, A substantially L-shaped and annular packing arranged between the bottom surface of the opening bottom of the tank bottom and between the rising piece of the drainage channel constituting pipe and the recessed portion of the tank bottom is disposed. Has been
The groove portion, the opening peripheral edge of the tank bottom facing the groove portion, the packing, and the inner periphery of the drainage pipe constituting pipe lead from the vicinity of the tank bottom to the drainage pipe constituting pipe side in the flange portion. A waterway is constructed ,
The packing includes an upright portion sandwiched between an upright piece of the drainage pipe constituting pipe and a recessed portion of the tank bottom, and a projection is formed on the upright portion over an outer peripheral edge thereof. In the natural state, the outer peripheral edge of the standing upper portion of the packing is larger than the inner periphery of the rising piece of the drainage channel constituting pipe .
According to this feature, since the drainage outlet is provided with a water conduit that leads from the vicinity of the tank bottom in the flange portion to the drainage channel constituting pipe side, the water flowing around the tank bottom in the vicinity of the flange portion and the flange portion is provided. However, it is discharged | emitted from this water conduit to the drainage channel structure side. Therefore, water does not stay around the drainage outlet, and accumulation of scales and dust and generation of mold can be prevented.

The body portion of the drainage outlet and the upper end of the drainage pipe constituting pipe are connected by screwing thread portions formed on the connection surfaces of each other, and the groove portion is connected to the drainage port. It is characterized in that it is formed so as to intersect the threaded portion of the body portion of the tool.
According to this feature, the groove portion is formed directly with respect to the drainage fitting so as to intersect the threaded portion of the trunk portion, so that the threaded connection between the trunk portion of the drainage fitting and the upper end of the drainage channel constituting pipe Regardless of the mutual angle, the water conduit can be formed at any position in all directions in the circumferential direction.

The drainage device includes a plug member that can be detachably closed with respect to the tank bottom around the drainage opening.
According to this feature, since the plug member is closed with respect to the tank bottom around the drainage mouthpiece, the water channel formed by the trunk portion and the water guide channel provided on the outer edge side portion of the flange portion are stopped at the same time. can do.

It is a partially broken front view which shows the form in which the drainage apparatus in an Example is used. It is an exploded view showing a drainage device. It is the upper perspective view which looked down at the drainage tool from the upper part. It is the downward perspective view which looked up at the drainage tool from the lower part. It is a partially expanded fracture front view which shows a water conduit. It is a partially expanded front view which shows the packing interposed between a drainage channel structure pipe and the opening peripheral lower surface of a tank bottom. It is a partially expanded fracture front view which shows the state by which the stopper apparatus was closed. It is a partially expanded fracture front view which shows the water conduit in the 1st modification. It is a partially expanded fracture front view which shows the water conduit in the 2nd modification.

  EMBODIMENT OF THE INVENTION The form for implementing the drainage apparatus which concerns on this invention is demonstrated below based on an Example.

  The drainage apparatus according to the embodiment will be described with reference to FIGS. Hereinafter, the upper side of the paper of FIG. 1 will be described as the upper side of the drainage device.

  The drainage device 1 is a device that is attached to a tank such as a bathtub or a washroom, constitutes a water channel when draining from the tank, and can open and close the water channel. As shown in FIG. 1, here, a case where it is attached to a tub 2 in a washroom will be described as an example.

  The bottom of the tank 2 (hereinafter referred to as the tank bottom 2a) is formed with a depressed portion 2b that is partially depressed downward, and a drain opening 2c (see FIG. 2) is formed in the depressed portion 2b. Has been. Then, the drainage device 1 is attached so as to sandwich the tank bottom 2a around the opening 2c from above and below. As shown in FIG. 2, the drainage device 1 is mainly configured by a drainage outlet 3, a drainage channel constituting pipe 4, a packing 5, and a plug device 6.

  As shown in FIG. 1 and FIG. 2, the drainage channel constituting pipe 4 is a tubular member connected to the overflow hose 7 and a drainage pipe (not shown) downstream, and an inner periphery 4 b of the upper end 4 a A screw portion is formed, and an upward flange portion 4c (hereinafter, referred to as an upward flange portion 4c) is formed at the tip portion from the screw portion. A screw portion formed on the outer periphery 3b of the trunk portion 3a of the drainage mouthpiece 3 is screwed into the screw portion of the drainage channel constituting pipe 4. Further, a packing 5 is interposed between the upward flange portion 4c at the tip of the upper end portion 4a of the drainage channel constituting pipe 4 and the peripheral lower surface 2e of the opening 2c of the tank bottom 2a.

  The drainage mouthpiece 3 is mainly comprised from the trunk | drum 3a which has the said screw part, and the flange part 3c formed in the upper end of the trunk | drum 3a. The trunk portion 3a is formed in a tubular shape so as to be inserted through the opening 2c of the tank bottom 2a, and the lower surface 3d of the flange portion 3c is in contact with the peripheral upper surface 2d of the opening 2c of the tank bottom 2a. Further, the upper surface 3e of the flange portion 3c is formed with a taper that falls inward. The trunk portion 3 a functions as a water channel whose inner circumference allows the drainage to flow down to the drainage channel constituting pipe 4.

  As shown in FIG. 3 and FIG. 4, the drainage mouthpiece 3 has one groove portion 8 formed on the side portion thereof. The groove portion 8 has a trunk portion that intersects with a notch portion 9 that is partly cut from the center in the height direction of the side surface 3f of the flange portion 3c to the lower surface 3d and a screw portion that is formed on the outer periphery 3b of the trunk portion 3a. The vertical groove 10 formed over the tube axis direction 3a intersects. The bottom surface 10a of the vertical groove 10 is formed to be slightly deeper than the valley portion 16 of the screw portion (see FIG. 5).

  As shown in FIG. 4, the notch 9 is formed in a substantially triangular shape, and one corner 9a of the notch 9 intersects with the vertical groove 10 formed in the outer periphery 3b of the body 3a, and the other two corners. 9b and 9c are located on the side surface 3f side of the flange portion 3c.

  As shown in FIG. 5, in a state where the drainage mouthpiece 3 and the drainage channel constituting pipe 4 are screwed together, they are guided by the groove 8, the peripheral edge of the opening 2 c of the tank bottom 2 a, the drainage channel constituting tube 4 and the packing 5. A water channel 11 is formed.

  Specifically, both inlets 11a of the water conduit 11 are configured by being surrounded on four sides by the inner peripheral surface 9d of the notch 9 provided in the flange 3c of the drainage outlet 3 and the opening peripheral upper surface 2d of the tank bottom 2a, Further, the bottom surface 10a and the inner side surfaces 10b and 10b of the longitudinal groove 10 formed in the body portion 3a and the opening 2c of the tank bottom 2a, the inner peripheral surface 5a of the packing 5, and the drainage outlet 3 in the drainage channel constituting pipe 4 are connected. The main pipe portion 11b of the water conduit 11 is configured by being surrounded on all sides by the inner periphery 4b. Thus, since the notch part 9 is opened and provided in the downward side of the flange part 3c, water can be guide | induced to the water conduit inlet 11a at the lowest point in the flange part 3c, and the flange part 3c and the flange part 3c vicinity Water that has entered between the tank bottom 2a can be reliably discharged.

  Moreover, since the vertical groove 10 is directly formed with respect to the drainage mouthpiece 3 so as to intersect the screw portion formed on the outer periphery 3b of the trunk portion 3a, the trunk portion 3a and the drainage channel of the drainage mouthpiece 3 are formed. Regardless of the mutual angle at the time of threaded connection with the component pipe 4, the water guide channel 11 can be formed at any position in all circumferential directions, and the degree of freedom in design is high.

  The flow of drainage when using an actual wash basin will be described with reference to FIGS. First, water flowing out from a faucet (not shown) is guided to the depression 2b by an inclination 2f (see FIG. 2) formed on the tank bottom 2a. Most of the water collected in this way is drained to the side of the drainage channel constituting pipe 4 through the water channel 12 constituted by the inner peripheral surface of the trunk portion 3a of the drainage mouthpiece 3 by the taper provided on the upper surface 3e of the flange portion 3c. The At this time, a small amount of water that did not move to the water channel 12 formed inside the trunk portion 3a due to the surface tension of the water is a slight gap α (between the depressed portion 2b and the flange portion upper surface outer edge 3h of the drainage mouthpiece 3). (See FIG. 5).

  The water temporarily staying in the gap α between the depressed portion 2b and the flange portion upper surface outer edge 3h enters the gap β between the depressed portion inner surface 2g and the flange portion side surface 3f as time elapses. At this time, as described above, the notch portion 9 is formed in a substantially triangular shape so that the two corner portions 9b and 9c are located on the side surface 3f side of the flange portion 3c. Therefore, the recessed portion inner surface 2g and the flange portion side surface 3f are formed. It is easy for water that has entered between the two to flow into the water inlet 11a.

  Subsequently, the water collected at the water conduit inlet 11a is drained to the drain channel constituting pipe 4 side through the water conduit main pipe portion 11b. Specifically, since water flows down from the waterway inlet 11a formed in a substantially triangular shape to the relatively thin waterway main pipe part 11b, a venturi effect is generated, and the flow speed in the waterway main pipe part 11b is accelerated. Therefore, the force to draw water near the water guide channel inlet 11a is increased, the water remaining in the vicinity of the gap β between the recessed portion inner surface 2g and the flange portion side surface 3f, and the depressed portion 2b communicating with the gap β and the flange portion upper surface outer edge. It is possible to efficiently draw in the water remaining in 3h and drain the water to the drainage pipe constituting pipe 4 side.

  Moreover, as shown in FIG. 5, since it connects so that the opening peripheral part of the tank bottom 2a may be pinched | interposed by the upward flange part 4c formed in the drainage channel structure pipe 4 and the flange part 3c of the drainage outlet 3, Except for the water guide channel inlet 11a constituted by the mouthpiece 3 and the opening peripheral upper surface 2d of the tank bottom 2a, they are brought into contact with no gap, and water located around the drainage tool 3 and the tank bottom 2a is supplied to the water guide channel 11. It can be collected efficiently.

  In addition, by the rising piece 4e formed so as to extend upward to the upward flange portion 4c of the drainage channel constituting pipe 4 and the depressed portion 2b of the tank bottom 2a, the lead of the water leakage should be upward. Accordingly, the water level required for water leakage can be increased, and the gap between the rising piece 4e and the depressed portion 2b is stopped by the packing 5, so that water leakage can be reliably prevented.

  As shown in FIG. 6 (a), a packing 5 is interposed between the upward flange portion 4c of the drainage channel constituting pipe 4 and the opening peripheral lower surface 2e of the tank bottom 2a. When the component pipe 4 is brought close to each other by the aforementioned screw connection, as shown in FIG. 6B, the upper surface 4d of the upward flange portion 4c of the drainage channel component pipe 4 and the tank bottom 2a The packing 5 is sandwiched between the opening peripheral lower surface 2e and deformed. Therefore, the water that flows mainly through the main pipe portion 11b of the water conduit 11 does not leak to the outside from between the upper surface 4d of the upward flange portion 4c of the drainage channel constituting pipe 4 and the opening peripheral lower surface 2e of the tank bottom 2a. It has become.

  Further, the packing 5 has a substantially L-shaped cross section with an outer edge rising, and the rising portion 5b comes into contact with a rising piece 4e formed on the upward flange portion 4c of the drainage channel constituting pipe 4. Yes. Furthermore, in the natural state, a projection 5c is formed on the rising portion 5b of the packing 5 over the outer peripheral edge thereof, and the outer peripheral edge of the rising portion 5b of the packing 5 is from the inner periphery of the rising piece 4e of the water channel constituent pipe 4 It is getting bigger. For this reason, the packing 5 is compressed and deformed in the rising piece 4e of the water channel constituting pipe 4 and is brought into pressure contact with the depressed portion 2b of the tank bottom 2a. Water leakage between them will be prevented more reliably.

  As shown in FIG. 1, the plug device 6 includes a plug member 13 and an operation unit 14 that moves the plug member 13 up and down. The stopper member 13 has a single groove 13a formed at the lower side edge thereof, and a packing 15 is fitted in the groove 13a. As shown in FIG. 7, the packing 15 is formed such that the outer diameter x1 formed by the outer edge thereof is larger than the outer diameter x2 of the flange portion 3 c of the drainage fitting 3. Therefore, in the closed state of the plug device 6, the plug member 13 is brought into close contact with the depressed portion inner surface 2g, thereby forming the water channel 12 by the trunk portion 3a of the drainage mouthpiece 3, and the gap β between the depressed portion inner surface 2g and the flange portion side surface 3f. The water conduit 11 (see FIG. 5) that communicates can be closed simultaneously.

  Although the embodiments of the present invention have been described with reference to the drawings, the specific configuration is not limited to these embodiments, and modifications and additions within the scope of the present invention are included in the present invention. It is.

  For example, the water conduit 11 provided in the drainage device 1 has a configuration capable of discharging water located around the flange portion 3c of the drainage mouthpiece 3 and the tank bottom 2a above the flange portion 3c to the drainage channel constituting pipe 4 side. If there is, the configuration is not limited to the above-described configuration, and for example, configurations such as first and second modified examples shown below may be used.

  As shown in FIG. 8, the drainage mouthpiece 3 'in the first modified example passes through the flange portion 3c and the trunk portion 3a from the side surface 3f of the flange portion 3c and penetrates the inner periphery 3g of the trunk portion 3a. A tunnel-shaped hole 11 ′ is formed, and this hole 11 ′ functions as the water conduit.

  As shown in FIG. 9, the drainage mouthpiece 3 ″ in the second modified example falls deeper than the taper provided on the flange upper surface 3e from the vicinity of the boundary between the upper surface 3e and the side surface 3f of the flange 3c. The groove 11 ″ is formed so as to function as the water conduit.

  Further, for example, water passing through the water channel is formed at the inner periphery 3 g of the trunk portion 3 a of the drainage outlet 3 as in the water channel 11 ′ and the water channel 11 ″ of the modification shown in FIGS. 8 and 9. In the case of a configuration in which the water is drained into the water channel 12, the packing 5 used for the purpose of preventing water leakage between the body 3 a of the drainage mouthpiece 3 and the drainage channel constituting pipe 4 may be omitted.

  Moreover, the water conduit 11 provided in the drainage device 1 is not limited to one, and a plurality of two or more may be provided. Furthermore, the structure which forms the several inlet 11a of the water conduit 11, and these join the main pipe part 11b of the one water conduit 11 may be sufficient.

  Further, the drainage pipe constituting pipe 4 is a pipe member that has a structure screwed and connected to the drainage mouthpiece 3 and is connected to a drainage pipe (not shown) on the downstream side, but is not limited to this structure, The member connected to the drainage mouthpiece 3 and the member connected to the drainage pipe may be separated, or may be formed integrally with the drainage pipe.

  Further, the connection between the drainage opening 3 and the drainage channel constituting pipe 4 is not limited to screwing, but may be, for example, by engagement.

DESCRIPTION OF SYMBOLS 1 Drainage device 2 Tank 2a Tank bottom 2b Tank bottom depression 2c Opening 2d Opening peripheral upper surface 2e Opening peripheral lower surface 2g Depression inner surface 3 Drainage mouthpiece 3a Trunk 3c Flange 3e Flange upper 3f Side 3g Inner circumference 3h Flange upper Outer edge portion 4c Flange portion 4 Drainage channel construction pipe 5 Packing 6 Plug device 8 Groove portion 9 Notch portion 9d Inner circumferential surface 10 Vertical groove 10a Vertical groove bottom surface 11 Water conduit 11a Water conduit inlet 11b Water conduit main tube portion 12 Water channel 13 Plug member 13a Groove 14 Operation part 15 Packing 16 Valley part x1 Packing outer diameter x2 Flange part outer diameter (alpha) Gap between tank bottom depression part and flange part upper surface outer edge part β Gap between tank bottom depression part inner surface and flange part side surface

Claims (3)

In a drainage device equipped with a drainage opening attached to an opening formed in the tank bottom and connected to a drainage channel constituting pipe,
The drainage opening includes a flange portion that comes into contact with the opening periphery of the tank bottom from above, and a tubular body portion that is disposed so as to be inserted through the opening and forms a water channel by an inner periphery thereof. In the drainage tool, a groove is formed from the outer edge side portion of the flange portion to the outer periphery of the trunk portion,
An upward flange portion is formed at the upper end of the drainage pipe constituting pipe, and a rising piece extending upward is formed on the outer edge of the upward flange portion,
The tank bottom is formed with a depressed portion that is partially depressed downward, and between the upward flange portion of the drainage channel constituting pipe and the tank bottom, the upward flange portion of the drainage channel constituting tube, A substantially L-shaped and annular packing arranged between the bottom surface of the opening bottom of the tank bottom and between the rising piece of the drainage channel constituting pipe and the recessed portion of the tank bottom is disposed. Has been
The groove portion, the opening peripheral edge of the tank bottom facing the groove portion, the packing, and the inner periphery of the drainage pipe constituting pipe lead from the vicinity of the tank bottom to the drainage pipe constituting pipe side in the flange portion. A waterway is constructed ,
The packing includes an upright portion sandwiched between an upright piece of the drainage pipe constituting pipe and a recessed portion of the tank bottom, and a projection is formed on the upright portion over an outer peripheral edge thereof. In the natural state, the outer peripheral edge of the standing upper portion of the packing is larger than the inner periphery of the rising piece of the drainage channel constituting pipe . The body portion of the drainage outlet and the upper end of the drainage pipe constituting pipe are connected by screwing thread portions formed on the connection surfaces of each other, and the groove portion is connected to the drainage port. The drainage device according to claim 1 , wherein the drainage device is formed so as to intersect with a screw portion of the body portion of the tool. The drainage device, the drainage device according to claim 1 or 2, characterized in that it comprises a removably closable plug member with respect to the tank bottom around the drain outlet device.

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