JP4081301B2 - Bathroom drainage equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a drainage device for a bathroom.
[0002]
[Prior art]
As shown in FIG. 5, in the bathroom in which the bathroom floor is composed of a washing place 1, a bathtub (not shown) and a bathtub receiver 2 that receives the bathtub, conventionally, the bathtub drains from the bathtub drain pipe 3 to the bent portion 4. Generally, a route that passes directly through the pipe and flows out to the miscellaneous drainage pipe is used. That is, by providing the bent portion 4, it is possible to exhibit a function of suppressing the rise of odor and the like from the drainage port because water is accumulated in the bent portion 4.
[0003]
On the other hand, the washing ground drainage and the bathtub drainage flow out from the washing ground drainage port 5 and the bathtub drainage port 6 to the miscellaneous drainage pipe through the mass portion 7 provided below the washing ground drainage port 5, respectively. In this case, by providing the mass portion 7, water is accumulated in the mass portion 7, and a function of suppressing an increase in odor from the drain outlet is provided.
[0004]
[Problems to be solved by the invention]
However, it is necessary to provide a mass part and a bent part as a drainage device in the bathroom to suppress an increase in odor from the drainage, but a mass part or a bent part is further provided in the miscellaneous drainage path, resulting in a double trap. In such a case, there is a risk of backflow, and in that case, backflow from the bathtub receiving drainage port 6 at the lowest position causes water to accumulate in the bathtub receiving, which is a problem in which hygienic problems occur. In addition, there is a problem that water cannot be drained in a short time when water accumulates in a bathtub receptacle having a small difference in height from the washing area. On the other hand, there is a problem that extra cost is required as a drainage device by using a component configuration in which a bent portion is provided in the drainage path of the bathtub.
[0005]
[Means for Solving the Problems]
The lower the washing place drainage port to the mass portion having a gray water inlet at the top, tub drain outlet and tub receiving water outlet of Te configuration odor joined via a hose, respectively, provided detachably on receiving the bath tub drain outlet backflow The prevention device is provided with an inlet opening and closing by a check valve that is open to the water pressure from above and closed against the water pressure from below, and an air vent opening to the atmosphere. Is.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
The invention according to claim 1 of the present invention, the mass portion having a gray water inlet at the bottom and washing place water outlet at the top, tub drain outlet and tub receiving water outlet of Te configuration odor joined via a hose, respectively, the bath An inlet that opens and closes by a check valve that opens to the water pressure from above and closes to the water pressure from below. It has an air vent opened inside .
[0008]
And by providing a backflow prevention device at the bathtub receptacle drainage port, even when the miscellaneous drainage path becomes a double trap, the backflow to the bathtub receptacle can be reliably prevented. In addition, by providing an air vent opening opened to the atmosphere, even when water accumulates in a bathtub receptacle having a small difference in height from the washing area, it can be drained in a short time. Moreover, by making the backflow prevention device attachable to and detachable from the bathtub receiving drainage port, a drainage device with excellent maintainability can be obtained, and since it has a simple component configuration, it can be supplied at low cost.
[0011]
The invention according to claim 2 of the present invention is configured such that the backflow prevention device is detachable without moving the bathtub.
[0012]
And, without accompanying large-scale construction such as moving the bathtub, by removing the apron from the washroom side, you can easily put on and take off the backflow prevention device, providing a bathroom drainage device that is particularly easy to maintain be able to.
[0013]
In the invention according to claim 3 of the present invention, a plurality of engagement pieces having protrusions at the tip are provided at the lower part of the backflow prevention device so as to be engageable with the bathtub receiving drain.
[0014]
And since a backflow prevention apparatus can be easily attached or detached without using a tool for a bathtub receptacle drainage by an engagement piece, it can provide the drainage apparatus of the bathroom excellent in maintainability.
[0015]
【Example】
Embodiments of the present invention will be described below with reference to FIGS.
[0016]
FIG. 1 is a sectional view showing a state in which a bathroom drainage apparatus according to an embodiment of the present invention is installed in a bathroom, and FIG. 2 is a perspective view of the bathroom drainage apparatus. A mass section 13 having a washing area drain port 11 at the top and having a trap function is screwed into the washing area 8, and a bathtub drainage hose 10a and a bathtub receiving drainage hose 12a are joined to the sides of the mass area 13, respectively. Further, a miscellaneous drain pipe 14 a is joined to the miscellaneous drain port 14 provided on the side surface of the mass part 13, and these are all in communication via the mass part 13.
[0017]
The other end of the bathtub drain hose 10 a is joined to the bathroom drain port 10, and the other end of the bathtub receiver drain hose 12 a is connected to the bathtub receiver drain port 12. A backflow prevention device 15 is detachably engaged with the bathtub receiving / draining port 10.
[0018]
FIG. 3 is a cross-sectional view showing the details of the backflow prevention device 15. An inflow port 16a and an air vent 16b are provided on the upper surface of the substantially conical body 16, and a tube 17 is connected to the air vent 16b. The other end of the tube 17 is open to the atmosphere.
[0019]
A check valve 18 made of a soft material such as fluoro rubber is attached to the lower part of the inlet 16a by a check valve holder 19, and is opened for water pressure from above and closed for water pressure from below. Is set to A plurality of engagement pieces 20 having protrusions 20a at the distal end are provided at the lower part of the main body 16, and the engagement pieces 20 can be reliably fixed to the bathtub receiving drain 12 and can be easily removed. Further, a waterproof packing 21 is attached to the outer peripheral portion of the main body 16 to ensure watertightness with the bathtub receiving drain 12.
[0020]
FIG. 4 is a perspective view showing a state in which the backflow prevention device 15 is removed from the bathtub receiving drainage port 12, and the backflow prevention device 15 is configured to be detachable from the bathtub receiving drainage port 12 without moving the bathtub 9. ing.
[0021]
Next, as for the operation and action, the bathtub drainage, the washing ground drainage, and the bathtub receiving drainage are respectively connected from the bathtub draining port 10, the washing ground draining port 11 and the bathtub receiving drainage port 12 through the mass portion 13 to the miscellaneous drainage port pipe 14a. The mass part 13 fulfills a trap function in the drainage path, and prevents the bad odor from flowing in from the miscellaneous water distribution pipe 14a.
[0022]
In addition, when the miscellaneous water distribution pipe 14a becomes a double trap, the backflow phenomenon of the drainage occurs, and when the water flows back from the mass portion 13 and flows in the direction of the bathtub receiver, the check valve 16 It closes with the pressure of the water which flows backward, and can prevent the inflow of water to a bathtub receptacle.
[0023]
On the other hand, the water accumulated in the bathtub receiver passes through the check valve 18 which is normally open and flows into the mass portion 13. In this case, even water collected in the bathtub receiver having a small difference in height from the mass portion 13 can be drained in a short time to the vicinity of the check valve 18 by the air being released from the air vent 16b.
[0024]
Furthermore, in the unlikely event that the backflow prevention device 15 breaks down, the backflow prevention device 15 can be easily removed for maintenance by removing the apron from the washing area without involving a large-scale construction such as moving the bathtub.
[0025]
In addition, since the drainage path can be configured with a simple configuration as shown in FIG. 2, the bathroom drainage device can be supplied at a lower cost than the conventional configuration.
[0026]
【The invention's effect】
As is clear from the above description, the bathroom drainage device of the present invention can reliably prevent backflow to the bathtub receptacle, and even when water accumulates in the bathtub receptacle with little difference in height between the washing area and the height, can do. Moreover, by making the backflow prevention device attachable to and detachable from the bathtub receiving drainage port, it is possible to provide a drainage device with excellent maintainability, and since it has a simple component configuration, it can be supplied at low cost. .
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a bathroom drainage device according to an embodiment of the present invention. FIG. 2 is a perspective view of a bathroom drainage device according to an embodiment of the present invention. FIG. 4 is a perspective view of an essential part around a bathtub receiving drain in an embodiment of the present invention. FIG. 5 is a perspective view showing a conventional bathroom drain device.
DESCRIPTION OF SYMBOLS 10 Bathtub drain port 11 Washing station drain port 12 Bathtub receptacle drain port 13 Mass part 14 Miscellaneous drainage port 15 Backflow prevention apparatus 18 Check valve 20 Engagement piece

Claims (3)

The lower the washing place drainage port to the mass portion having a gray water inlet at the top, tub drain outlet and tub receiving water outlet of Te configuration odor joined via a hose, respectively, provided detachably on receiving the bath tub drain outlet backflow The prevention device is provided with an inlet opening and closing by a check valve that is open to the water pressure from above and closed against the water pressure from below, and an air vent opening to the atmosphere . Bathroom drainage device. The bathroom drainage device according to claim 1 , wherein the backflow prevention device is detachable without moving the bathtub . The bathroom drainage device according to claim 1 or 2 , wherein a plurality of engagement pieces having protrusions at a tip end portion are provided at a lower portion of the backflow prevention device, and the bath drainage outlet can be engaged .

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