JP2000192522A - Drainage for washing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To remarkably simplify works by arranging a drain trap on a floor to form the easily rolling type piping. SOLUTION: This drainage is provided with a waterproof pan 16, and a drain trap 13 installed on the waterproof pan 16. The drain trap 13 is composed from a P-type having a main body container 17, an introducing nozzle 22 extended from an upper surface of the main body container 17 to an upstream side and with which a hose 14a of a washing machine is directly connected, and a pipe connecting part 23 extended from a side surface of the main body container 17 to a downstream side to connect with a drain pipe 15. The waterproof pan 16 has a pan part 16a where the drainpipe 13 is installed, and a peripheral edge part 16b ranged along an outside of the pan part 16a in a substantially reverse U shaped cross section. Furthermore, the drain trap 13 is fixed on the peripheral edge part 16b of the waterproof pan 16 with the pipe connecting part 23.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drain device for a washing machine in which a drain trap for receiving the drain of a washing machine and a waterproof pan are combined.

[0002]

2. Description of the Related Art Conventionally, as this type of drainage device for a washing machine, for example, a drainage device disclosed in Japanese Utility Model Laid-Open No. Hei 6-57972 is known. The drainage device for a washing machine includes a waterproof pan installed on a floor, and a drain trap attached to the waterproof pan and receiving drainage of the waterproof pan and drainage of the washing machine. The drain trap includes a main body container, an introduction nozzle extending upstream from the upper surface of the main body container and connected to a washing machine hose, a pan drain hole formed on the upper surface of the main body container to receive drainage of the waterproof pan, A so-called bowl-shaped trap having a pipe connecting portion extending downstream from the side surface of the main body container and connected to a drain pipe.

[0003]

In such a conventional drainage device for a washing machine, since the drainage trap is a bowl-shaped trap, the position of the pipe connection part connected to the drainage pipe is lowered,
The drain pipe must be a pipe below the slab or a pipe pipe above the slab. There is no problem when the drain pipe is installed in a new building. However, when the drain pipe is installed in an existing building, the floor needs to be replaced. That is, it is necessary to carry out interior renovation work accompanying the equipment renovation work, which raises the cost of the work, and also causes problems such as hindrance to living in a dwelling unit where a resident is located. However, if the waterproof pan is raised and the position of the drain trap is raised, it is possible to make the drain pipe a floor corrugated pipe. However, in this case, the position of the introduction nozzle to which the washing machine hose is connected is also increased, and it is necessary to install the washing machine itself at a higher position (to put on a spill), which makes it difficult to use the washing machine. Become.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems, and a washing machine capable of greatly simplifying construction by disposing a drain trap on a floor to enable simple floor corrugated piping. It is intended to provide a drainage device for water.

[0005]

A drain device for a washing machine according to the present invention comprises a waterproof pan installed on a floor laid with a gap from a slab, and a drain installed on the waterproof pan to receive the drain of the washing machine. A drain trap including a main body container, an introduction nozzle extending upstream from an upper surface of the main body container and directly connected to a washing machine hose, and a pipe extending downstream from a side surface of the main body container and connected to a drain pipe. The waterproof pan has a connection part and a modified P-type, and the waterproof pan has a pan part where a drain trap is installed, and a peripheral part that is continuous in a reverse U-shaped cross section outside the pan part. , The drain trap is a pipe connection,
It is characterized by being fixed to the periphery of the waterproof pan.

According to this configuration, the drain trap is deformed by P
By having a shape-shaped one, it is possible to minimize the level difference between the introduction nozzle to which the seal washing machine hose is connected and the pipe connection part connected to the drain pipe, while ensuring the water sealing depth. . Therefore, the position of the introduction nozzle can be kept relatively low even when the pipe connection part is adjusted to the level of the floor corrugated pipe (drain pipe) on the floor. In addition, by disposing the drain trap above the waterproof pan, the waterproof pan can receive drainage leakage due to detachment of the hose of the washing machine. Furthermore, since the drain trap is fixed to the periphery of the waterproof pan at the pipe connection portion, the drain trap can be stably installed. It goes without saying that the drain trap can be easily maintained.

In this case, it is preferable that the pipe connecting portion is fitted and fixed to a semicircular recess formed in the peripheral portion with a packing interposed therebetween.

[0008] According to this configuration, the pipe connection portion can be further disposed below the waterproof pan together with the drain trap by the depth of the recessed portion where the pipe connection portion is fitted and fixed.
In addition, even when the recessed portion is formed in the peripheral portion of the waterproof pan as described above, water leakage is prevented from this portion by the packing.

In these cases, it is preferable that the waterproof pan is seated on the floor at the lower end of the peripheral edge with the lower part of the pan fitted into the opening formed in the floor.

According to this structure, the position of the drain trap can be lowered, and the opening can be covered and concealed by the periphery of the waterproof pan. In this case, the opening is
Formed through the floor.

Further, another drainage device for a washing machine according to the present invention comprises:
A waterproof pan installed on a floor laid with a gap from the slab, and a drain trap attached to the waterproof pan and receiving drainage of the waterproof pan and washing machine drainage, the drain trap comprises a main body container, a main body container An inlet nozzle that extends upstream from the upper surface of the container and is directly connected to the washing machine hose, a pan drain hole that is formed on the upper surface of the main container to receive the drainage of the waterproof pan, and connects to the drain pipe that extends downstream from the side surface of the main container. The waterproof pan is provided with a drainage trap installed therein;
A peripheral portion having a substantially U-shaped cross section is provided outside the pan portion, and the pipe connection portion of the drain trap extends through the peripheral portion of the waterproof pan on the floor. I do.

According to this structure, the drainage of the washing machine can be received by the introduction nozzle and the drainage of the waterproof pan can be received by the pan drainage hole. Further, even if the pipe connection portion is adjusted to the level of the corrugated pipe (drain pipe) on the floor, the position of the introduction nozzle can be kept relatively low. For this reason, the drain pipe connected to the pipe connection part can be piped just above the floor, and the floor-mounted corrugated pipe can be provided in a small space.

In this case, it is preferable that the lower part of the main body of the drain trap is fitted into an opening formed in the floor.

According to this structure, the position of the drain trap can be lowered, and the opening can be covered and concealed by the periphery of the waterproof pan. In this case, the opening is
Formed through the floor.

In these cases, it is preferable that the bread drain hole is provided with a float valve which is located below the bread drain hole and can be opened and closed.

According to this configuration, when the drainage flows backward or the drainage amount of the washing machine is large and the water level of the main body container rises, the float valve closes the pan drainage hole to prevent the drainage from overflowing into the waterproof pan. . Further, when the water level of the main body container rises, the water force of the drainage is also strong and bubbles are easily generated, but the float valve closes the pan drainage hole, so that the outflow of bubbles from the pan drainage hole can be prevented. At the same time, the inflow of air from the pan drain hole is prevented, and the generation of bubbles is also suppressed.

In this case, it is preferable that the float valve is made of a solid synthetic resin.

According to this structure, even if the float valve is damaged, the drainage does not enter, so that the buoyancy of the float valve can be prevented from lowering. Therefore, the original check valve function is maintained over the years. be able to.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A drainage device for a washing machine according to an embodiment of the present invention will be described below with reference to the accompanying drawings, taking an example of the area around a washing machine storage in a multi-story apartment house. The location of this washing machine is a part of the corridor connected to the entrance, a wash basin is placed at the farthest invisible from the entrance, and a dedicated drainage channel so that the washing machine can be placed next to this wash basin Applicable when adding (renovation).

FIGS. 1 and 2 show a first embodiment of a washing machine drainage device 10 according to the present invention. A drainage trap 13 is arranged on a floor 12 laid at appropriate intervals from a slab 11, and a washing machine 14 is provided. After the wastewater flows into the drain trap 13, the wastewater flows into a drain vertical pipe (not shown) via a drain branch pipe 15 connected to the drain trap 13. The drain trap 13 is provided on the upper surface of the pan 16a of the waterproof pan 16. The bottom of the pan 16 a of the waterproof pan 16 is fitted into an opening 12 a formed in the floor 12.

The drain trap 13 forms a communication port 18 between a hermetically closed main body container 17 and a bottom portion 17b which is vertically provided from a ceiling portion 17a of the main body container 17, and a drainage inflow chamber 19 is formed upstream of the communication port. A separating plate 21 whose downstream side is a water sealing chamber 20, an introduction nozzle 22 attached to the ceiling 17a of the drain inflow chamber 19 and connecting the drain hose 14a of the washing machine 14, and an upper end of the water sealing chamber 20 To the water sealing chamber 20
And a pipe connection portion 23 connected to the drain branch pipe 15. That is, the drain trap 13 has a basic form of a P-type trap.

The washing machine 14 is installed on the floor 12 adjacent to the wash basin 24 as shown in FIG. 2, and the drain trap 13 to which the drain hose 14a of the washing machine 14 is connected is connected to the wash basin 2.
4 below.

The main body container 17 of the drain trap 13 is formed integrally with the separating plate 21 and the pipe connecting portion 23 by casting, and the ceiling portion 17a has a mounting opening 1 for the introduction nozzle 22.
7 c is formed to communicate with the drainage inflow chamber 19. The lower end of the introduction nozzle 22 is liquid-tightly fitted to the mounting port 17c via an O-ring 24, and is rotatable in a direction along a horizontal plane. In addition, an inspection port 25 communicating with the water sealing chamber 20 is formed in the ceiling portion 17a, and a plug 26 is detachably attached to the inspection port 25 in a liquid-tight structure.

The downstream half of the pipe connecting portion 23 has a screw 23a formed on the outer periphery of the distal end portion.
5 with the cover nut 27 screwed into the screw 23a via the O-ring 28, and tightening the cover nut 27
The swelling of the ring 28 connects to the drain branch 15.

The waterproof pan 16 is provided with a peripheral portion 16b so as to surround the pan portion 16a. The peripheral portion 16b is bent once and then folded back (inverted substantially "U" shape), and the folded end thereof is formed. 16c is seated on the floor 12 surface. The folded end 16c is set at a position above the lower end of the pan 16a, and the bottom of the pan 16a is fitted into the opening 12a of the floor 12 with the folded end 16c in contact with the floor 12 surface. .

In the peripheral portion 16b, a concave portion (recess portion) 29 is formed at a position corresponding to the upstream half portion of the pipe connection portion 23 along the outer shape of the substantially lower half portion of the pipe connection portion 23. The pipe connection part 23 is fitted in a liquid-tight manner via a packing 30. As shown in FIG. 3, the upstream half of the pipe connection portion 23 covers the upper half portion of the pipe connection portion 23 with a semicircular band 31 and both ends are screwed to the upper end of the peripheral portion 16b. Thereby, it is fixed to the waterproof pan 16 in a liquid-tight manner.

In the present embodiment, since the waterproof pan 16 is provided and the drain trap 13 is disposed above the waterproof pan 16, water leakage due to detachment of the drain hose 14a can be received by the waterproof pan 16, and the floor surface 12 becomes dirty. Can be avoided. Further, when a dryer is installed as a set above the washing machine 14, the waterproof pan 16 can receive a small amount of drain water from the dryer.

Even when the drain trap 14 is placed on the floor 12 as described above, the pipe connection portion 23 of the drain trap 13 is connected to the bottom 17b of the main body container 17 depending on the sealing depth (50 mm or more) of the sealing chamber 20. However, since the bottom of the pan portion 16a of the waterproof pan 16 is fitted into the opening 12a formed in the floor 12, the waterproof pan 16 and the drain trap 17 are entirely lowered and installed. can do. For this reason, the drainage branch pipe 15 connected to the pipe connection part 23 can be piped just above the floor 12, so that the floor pipe can be piped on the floor in a small space.

Further, by fitting the bottom of the pan 16a into the opening 12a of the floor 12, the waterproof pan 16 can be positioned and prevented from moving. Furthermore, when positioning the waterproof pan 16 in this manner, the opening 12a
However, the opening 12a can be easily perforated from above the floor 12, and can be performed without complicated construction.

Further, since the main body container 17 of the drain trap 13 has a closed structure, air is mixed when the waste water mixed with the detergent of the washing machine 14 flows from the introduction nozzle 22 into the waste water inflow chamber 19 vigorously. Can be prevented. Therefore, generation of a large amount of bubbles in the drain trap 13 can be suppressed, and the bubbles can prevent the waste water from stagnating in the main body container 17, and thus can smoothly flow the waste water. .

Further, the waterproof pan 16 has a pipe connecting portion 23 fitted into a concave portion 29 formed in a peripheral portion 16b thereof,
Since the pipe connection portion 23 can be arranged further downward together with the drain trap 13 by the depth of the concave portion 29, the drain branch pipe 15 can be piped closer to the floor 12 surface. At this time, the concave portion 29 is formed in the peripheral portion 16 b of the waterproof pan 16.
Also, since the pipe connecting portion 23 is liquid-tightly fitted to the concave portion 29 via the packing 30, it is possible to prevent water from leaking from the concave portion 29.

FIGS. 4 and 5 show a second embodiment of the washing machine drainage device 10 of the present embodiment. In this embodiment, the drain trap 100 is the pan 1 of the waterproof pan 101.
The upper end of the opening 01a is liquid-tightly mounted. The pan portion of the waterproof pan 101 is formed shallower than the first embodiment, and conversely, the peripheral portion 101b is formed higher.

The drainage trap 100 has a lid 103 which is liquid-tightly fitted in an opening 102 formed in a pan 101a of a waterproof pan 101, and an upper end opening 102 formed by the lid 103.
, The upstream introduction nozzle 109 attached to the lid 103 and connected to a drain hose of a washing machine (not shown), and extends laterally from the main body container 104;
A downstream pipe connection portion 110 connected to the drain branch pipe 15,
It has.

The main body container 104 is connected to the bottom portion 104a by a separating plate 108 suspended from the upper end side.
The upstream side including the lid 103 is defined as a drainage inflow chamber 106, and the downstream side is defined as a water sealing chamber 107. The bottom portion 104a of the main body container 104 is fitted into an opening 12a formed in the floor 12, and is installed at a lower position as a whole. Then, the pipe connecting portion 110 of the drain trap 100 penetrates an inverted “U” -shaped notch 1 o 1 c formed at the falling portion of the peripheral portion 101 b of the waterproof pan 101, and is a drainage branch pipe 15 that is a floor-mounted corrugated pipe. It is connected to the.

The upper surface of the cover 103 is
It is arranged at substantially the same height or lower than the inner surface of a. A plurality of substantially oval pan drain holes 111 are formed in the cover 103 so as to surround the introduction nozzle 109 (see FIG. 6). Further, a ring-shaped float valve 112 is disposed below the pan drain hole 111 and can be opened and closed. The float valve 112 is formed solid using a synthetic resin such as polypropylene having a small specific gravity with respect to water. 4 shows a state in which the float valve 112 is lowered and the pan drain hole 111 is opened, and FIG.
Has risen and the pan drain hole 111 has been closed.

The peripheral portion 101b of the waterproof pan 101 is folded back from the peripheral end of the pan portion 101a in an inverted "U" shape, and the lower end thereof is seated on the floor 12. Peripheral part 101
b, the downstream half of the pipe connecting portion 110 penetrating through the notch 1o1c has a screw 1 on the outer periphery of the distal end portion, similarly to the above embodiment.
10 a is formed, and a cover nut 113 is screwed via an O-ring 114 to the screw 110 a in a state where the drainage branch pipe 15 is fitted in the pipe connection part 110.

The introduction nozzle 109 is mounted in a liquid-tight manner at the center of the lid 103 so as to be rotatable in a direction along a horizontal plane. As shown in FIG. 6, four pan drain holes 111 are formed around the introduction nozzle 109 at equal intervals in the circumferential direction, and the water in the waterproof pan 101 flows down from the pan drain hole 111 into the drain inflow chamber 106. You.

On the other hand, the float valve 112 is formed in a ring shape so as to be able to open and close the pan drain holes 111 arranged in a ring as shown in FIG. 7, and is suspended below the peripheral portion of the lid 103. It moves up and down along the inside of the cylindrical guide 115. Further, the cylindrical guide 115 is configured such that a screw portion 115a formed on the outer peripheral surface thereof is screwed into the upper end opening 104b of the main body container 104. That is, the packing 116 is interposed between the outer periphery of the lower surface of the lid 103 and the outer periphery of the upper end of the main body container 104, and the lid 103 is
1a with the opening 102 interposed therebetween.
The drain trap 100 is attached to the waterproof pan 101 in a liquid-tight manner by being screwed to the upper end of the drain pan 4.

Therefore, in the drain device 10a for a washing machine of this embodiment, the waterproof pan 1
01 can receive water leakage and drain water from the dryer, and can be used for drainage equipment 10a
Construction can be done easily.

The drainage collected in the pan portion 101a of the waterproof pan 101 collects in the lid 103, and the drainage holes 111
From the inlet nozzle 109 and is discharged together with the drain water flowing from the introduction nozzle 109. In this case, the introduction nozzle 109 is formed by forming the pan drain hole 111.
When the wastewater mixed with the detergent of the washing machine flows into the wastewater inflow chamber 106 from the above, air is easily mixed therein, and bubbles are generated. In the case of overflow, the float valve 112 rises and closes the pan drain hole 111 to make it a closed state. This check valve function prevents outflow from the pan drain hole 111 and prevents air from being mixed. And generation of bubbles can be suppressed.

Further, since the float valve 112 is made of a synthetic resin having a small specific gravity with respect to water, the float valve 112 is reliably prevented from entering water into the float valve 112 and the buoyancy of the float valve 112 is reduced. Because of this, the original check valve function is maintained over time.

By the way, the drainage devices 10 and 10a for the washing machines of the respective embodiments have been invented in consideration of the case where they are added to an existing apartment house. However, it goes without saying that the present invention can be applied.

[0043]

As described above, according to the drainage device for a washing machine of the present invention, it is possible to arrange a drain trap on the floor, and to perform a simple flooring pipe on the floor, thereby increasing the drainage device. In addition to the above, even in the case of new construction, there is an excellent effect that the construction can be significantly simplified.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a drain trap used in one embodiment of the present invention.

FIG. 2 is an overall view of a drainage device for a washing machine according to an embodiment of the present invention.

FIG. 3 is a sectional view taken along line AA in FIG. 1;

FIG. 4 is a sectional view of a drain trap used in another embodiment of the present invention.

FIG. 5 is a sectional view showing an operation state of a drain trap used in another embodiment of the present invention.

FIG. 6 is a plan view of a lid used in another embodiment of the present invention.

FIG. 7 is a central sectional view of a float valve used in another embodiment of the present invention.

[Explanation of symbols]

 10, 10a Drainage device for washing machine 11 Slab 12 Floor 12a Opening 13 Drain trap 14a Washing machine hose 15 Drain branch pipe 16 Waterproof pan 16a Pan 16b Peripheral edge 17 Main body container 22 Introducing nozzle 23 Pipe connection 100 Drain trap 101 Waterproof Bread 101a Bread part 101b Peripheral part 102 Opening 103 Lid 104 Main body container 109 Introducing nozzle 110 Pipe connection part 111 Bread drain hole 112 Float valve

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Haruhisa Ogawa 1-9-9 Kanda Nishikicho, Chiyoda-ku, Tokyo Inside Nihon Sogo Kosyo Seikatsu Co., Ltd. (72) Inventor: Shigeharu Mori 5-1-1 Koiehonmachi, Tokoname-shi, Aichi Prefecture Inax Corporation (72) Inventor Yasuo Uchida 5-1-1, Koiehonmachi, Tokoname-shi, Aichi Prefecture Inax Corporation F term (reference) 2D061 CA03 CC03 CC13 DD08

Claims (7)

[Claims] 1. A waterproof pan installed on a floor laid with a gap from a slab, and a drain trap installed on the waterproof pan and receiving drainage of a washing machine, wherein the drain trap includes a main body container and A modified P-shaped nozzle having an introduction nozzle extending upstream from the upper surface of the main container and directly connected to a washing machine hose, and a pipe connection extending downstream from the side surface of the main container and connected to a drain pipe. The waterproof pan has a pan portion in which the drain trap is installed, and a peripheral portion that extends downward from an outer end of the pan portion and extends downward. The drain trap is the pipe connection portion, A drainage device for a washing machine, wherein the drainage device is fixed to the peripheral portion of the waterproof pan. 2. The washing machine according to claim 1, wherein the pipe connection portion is fitted and fixed to a semicircular recess formed in the peripheral portion with a packing interposed therebetween. For drainage. 3. The waterproof pan is seated on the floor at the lower end of the peripheral edge with the lower portion of the pan fitted into an opening formed in the floor.
Or the drainage device for a washing machine according to 2. 4. A drain pan installed on a floor laid with a gap from a slab and a drain trap attached to the waterproof pan and receiving drainage of the waterproof pan and drainage of a washing machine. A main body container, an introduction nozzle extending upstream from the upper surface of the main body container and directly connected to a washing machine hose, a pan drain hole formed on the upper surface of the main body container to receive drainage of the waterproof pan, It has a pipe connecting portion that extends downstream from the side surface of the container and is connected to a drain pipe, and is configured as a modified P type. The waterproof pan is a pan section where the drain trap is installed, and a pan section of the pan section. A peripheral portion that is folded back from an outer end and extends downward, wherein the pipe connection portion of the drain trap extends through the peripheral portion of the waterproof pan on the floor. Drainage for washing machines. 5. The drain device for a washing machine according to claim 1, wherein a lower portion of the main body container of the drain trap is fitted into an opening formed in the floor. 6. The washing machine according to claim 4, wherein the pan drain hole is provided with a float valve located below the pan drain hole and capable of opening and closing the pan drain hole. Drainage equipment. 7. The drainage device for a washing machine according to claim 6, wherein the float valve is made of a solid synthetic resin.