JPH11181853A - Drain trap and garbage disposal equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent accumulation of foreign matters in a drain trap even though the amount of water discharged from a drain outlet of a sink is small by providing a straight line portion connected to the sink drain outlet and a circular arc portion connected from the straight line portion to a sewer line side with a drain trap shaped almost to a D-shape. SOLUTION: A garbage disposal equipment 1 forms a main drain line 10 at the outer peripheral portion of a transfer route 7 provided from a garbage inlet 5 located below a drain outlet 3 at the bottom of a sink 2 to a crushing portion 6. Moreover, a plurality of dissolved water drain holes 15 are formed for draining the dissolved water occurred during dissolution of garbage below a dissolving container 12, discharged dissolved water is accumulated in a bottom 16a of the outer side container 16, and dissolved water is discharged to the sewer line 9 through a sub-drain route 17. Here, a straight line portion 18a connected to the side of dissolved water drain hole 15 and extending downward and a circular arc portion 18b connected from the straight line portion 18a and extending upward and connected to the sewer line 9 are provided and formed almost to a D-shape as a drain trap 18 and placed in the middle of the sub-drain route 17.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a garbage disposal apparatus disposed on a sink to decompose garbage.

[0002]

2. Description of the Related Art Conventionally, a U-shaped drain trap is generally used as a drain trap for preventing a backflow of an odor from a sewer pipe. By the way, as a garbage processing apparatus, the applicant has already applied for a Japanese Patent Application No. 9-166339. In this application, a part of the drainage discharged from the sink drain hole of the sink is guided to the sub-drain in order to wash the foreign matters that have accumulated in the sub-drain that discharges the decomposition water.

[0003]

By the way, the inventors examined the garbage disposal apparatus prototyped based on the above-mentioned application under various conditions of use, and found that a U-shaped drain trap was used and a sink was used. If the amount of water discharged from the drain hole (the amount of water flowing out of the sink faucet) is small,
It has been discovered that foreign matter may accumulate (accumulate) in a U-shaped drain trap.

[0004] In view of the above, it is an object of the present invention to prevent foreign matters from remaining in a drain trap even when the amount of water discharged from a sink drain hole is small.

[0005]

The present invention uses the following technical means to achieve the above object. Claim 1
According to the invention described in Item 3, the drain trap is formed by the linear portion (18
a) and an arc portion (18b) connected to the linear portion (18a), and is formed in a substantially D-shape.

Thus, after the arc portion (18b),
Since there is no portion where the curvature changes greatly, it is possible to prevent the flow velocity distribution from being largely biased at the circular arc portion (18b). Therefore, even when the amount of water is small, it is possible to prevent foreign matters from being retained in the drain trap. In addition, the code | symbol in the parenthesis of each said means shows the correspondence with the concrete means of embodiment mentioned later.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS (First Embodiment) FIG. 1 is a schematic diagram showing a schematic configuration of a garbage processing apparatus 1 according to the present embodiment, and the garbage processing apparatus 1 has a kitchen installed in a kitchen. It is located in a chabinet (not shown).

Reference numeral 2 denotes a sink (sink) for performing water work. The sink 2 has a bottom portion for discharging wastewater used in the water work to the side of a sewer pipe (sewer) 9. A sink drain hole 3 is provided. A grid-shaped drainer 4 having a plurality of small holes is fitted into the sink drain hole 3. A garbage input port (hereinafter abbreviated as an input port) 5 of the garbage disposal apparatus is opened below the drainer 4 (sink drain hole 3), and the garbage is pulverized from the input port 5. A transfer path 7 is formed up to the crushing section 6. Reference numeral 8 denotes a spherical opening / closing gate (opening / closing member) 8 for opening and closing the input port 5. The opening / closing gate 8 is normally closed (when the user does not operate), and is provided on the kitchen cabinet. It is configured to open when a user steps on a foot pedal (not shown).

A main drainage channel 10 for discharging drainage discharged from the sink drainage hole 3 to the side of the sewer pipe 9 is formed at an outer peripheral portion of the transfer channel 7, and the main drainage channel 10 is made of polypropylene or the like. It is formed of resin piping. In the middle of the main drainage channel 10, an S-shaped first drainage trap 11 that prevents an unpleasant odor or insects from entering the sink drainage hole 3 located on the upstream side from the sewer pipe 9 is provided. I have.

On the other hand, the transfer unit 7 contains a microorganism carrier 12a carrying aerobic microorganisms for decomposing garbage and communicates with the decomposition container 12, and the garbage crushed by the crushing unit 6 is The impeller 13 is transferred toward the decomposition container 12 by centrifugal force caused by rotation. Incidentally, reference numeral 13a denotes an electric motor that rotationally drives the impeller 13 and the crushing hammer (crushing blade) 6a of the crushing unit 6, and 14a denotes the microorganism carrier 12.
It is a stirring blade for stirring a and garbage. The stirring blade 14a is connected to the electric motor 1 via a drive belt 14c.
4b.

A plurality of decomposed water drain holes 15 for discharging the decomposed water generated during the decomposition of the garbage are formed below the decomposed container 12, and the decomposed water discharged from the decomposed water drain holes 15 is formed. Accumulates on the bottom 16a of the outer container 16 arranged to cover the outside of the decomposition container 12, and
Is discharged to the sewage pipe 9 via And sub drainage channel 1
In the middle of 7, a second drain trap 18 for preventing an odor, insects, and the like from entering the decomposed water drain hole 15 located on the upstream side from the sewer pipe 9 is disposed. The second drain trap 18 is connected to the decomposed water drain hole 15 and extends downward, and the second drain trap 18 is connected to the sewer pipe 9 by extending upward from the straight portion 18a while drawing an arc. It is formed in a substantially D-shape having an arc portion 18b.

Reference numeral 19 designates a part of the drainage discharged from the sink drainage hole 3 on the upstream side of the sub drainage channel 17 (decomposed water drainage hole 1).
5), and is a washing channel for washing foreign matter remaining in the sub-drainage channel 17. In the middle of this washing channel 19, a third drain trap formed in an S-shape like the first drain trap 11. 20 are provided. By the way, the main drain 10
As shown in FIG. 2, the wastewater flowing through the washing unit 19 (hereinafter referred to as main wastewater) and the wastewater flowing through the washing channel 19 (hereinafter referred to as washing water) In this embodiment, the flow rate of the washing water is Q1.
Is larger than the main drainage flow Q2 (Q111.5 × Q2)
To this end, a distribution plate 21 for regulating the amount of drainage flowing into the main drainage channel 10 is provided at the outer peripheral portion of the transfer section 7.

At the entrance of the washing channel 19, a mesh filter (wire mesh) 22 for preventing foreign matter (garbage) from flowing into the washing channel 19 is provided.
Is movable with the swing of the opening / closing gate 8, and the filter 22
A scraping brush for scraping foreign matter clogged in the hole is provided. In FIG. 1, reference numeral 24 denotes an electric heater (heating means).
By blowing the air heated by the electric heater 24 to the gap between the decomposition container 12 and the outer container 16 by the electric fan 25, the inside of the decomposition container 12 (the microorganism carrier 12a) is heated to a predetermined temperature (in this embodiment, the microorganism carrier 12a). (About 50 ° C).

Reference numeral 26 denotes a ventilation pump for pumping the decomposition gas generated during the decomposition of the garbage toward the main drainage channel 10.
7 is an electric fan 25 and electric motors 14b, 13a
(The agitating blade 14a and the impeller 13). In the present embodiment, the ventilation pump 26 and the electric heater 24 are configured to always operate.

Incidentally, FIG. 1 is a schematic diagram as described above, and the drainage channels such as the main drainage channel 10 and the washing channel 19 are deformed so that they can be easily understood. It is necessary to design a water path length (pipe length) such as the cleaning water path 19 and a pressure loss in the water path as small as possible. Next, an outline of the operation of the garbage processing apparatus 1 will be described.

First, as the garbage accumulates in the drain 4, the water in the garbage flows by its own weight along the outer periphery of the transfer path 7 and flows into the main drainage channel 10 and the washing channel 19. At this time, when the user steps on the foot pedal, the opening / closing gate 8 is opened, and the garbage deposited in the drainer 4 enters the transfer path 7 from the input port 5 and temporarily accumulates in the crushing section 6.

When the foot is released from the foot pedal and the opening / closing gate 8 is closed, the electric motor 13a rotates for a predetermined time (30 seconds in the present embodiment), and the garbage is crushed and the crushed garbage is disassembled. It is transferred to the container 12.
Thereafter, the garbage (organic matter) is decomposed into decomposed gas and decomposed water by the microorganism carrier 12a, and is discharged toward the sewer 9 via the main drainage channel 10.

As is apparent from the above description, in the present embodiment, the garbage and the waste water are separated by the opening / closing gate 8 and the impeller 13 and the like, and the garbage is transferred to the decomposition container 12 and the waste water is mainly discharged. The separation / transfer section configured to discharge the water toward the drainage channel 10 is configured. Next, features of the present embodiment will be described.

By the way, a U-shaped drain trap (hereinafter, referred to as a drain trap)
Called U trap 100. 3), the first straight portion 1 extending from the upper side to the lower side as shown in FIG.
01, a second linear portion 102 extending from the lower side to the upper side,
And an arc part 1 connecting both straight parts 101 and 102
03. In the U-trap 100, the fluid (drainage) that has been accelerated by gravity between the first straight portions 101 and increased in flow velocity passes through a portion where the curvature changes greatly from the arc portion 103 to the second straight portion 102. Therefore, due to the centrifugal force when passing between the arc portions 103, the flow velocity distribution in the second straight portion 102 is biased to the opposite side to the first straight portion 101 (left side in FIG. 3B). .

For this reason, in addition to the fact that the flow velocity on the first linear part 101 side (the right side in FIG. 3B) in the second linear part 102 is lower than that of the other parts, In the second linear portion 102, the flow velocity is reduced by gravity. Therefore, when the flow rate is small, the foreign matter flowing through the first linear portion 101 in the second linear portion 102 cannot be washed away. Straight part 102 and circular part 103
Foreign matter floats in a swirl near the connection site with the
After that, they stay (deposit).

On the other hand, in the present embodiment, the portion where the drainage (fluid) is decelerated by the influence of gravity (the arc portion 18)
b) is formed in an arc shape, and a portion where the curvature largely changes after the arc portion 18b (the second linear portion 102)
Therefore, it is possible to prevent the flow velocity distribution at the arc portion 18b from being largely biased to the opposite side (left side in FIG. 3A) from the linear portion 18a.

Therefore, it is possible to prevent the flow velocity on the side of the linear portion 18a (right side in FIG. 3A) of the arc portion 18b from being greatly reduced. Foreign matter can be prevented from staying. Incidentally, FIG. 4 shows the eggshell (density 1.68 g / cm ³ ,
FIG. 5 is a graph showing a test of a limit foreign substance concentration at which a drain trap is blocked by a foreign substance staying in the drain trap, with an average particle diameter of 1.5 mm being a foreign substance. As is apparent from FIG. 4, the D-shaped second drain trap 18 according to the present embodiment has a higher limit foreign substance concentration for the same amount of water than the U trap 100, and thus has a lower flow rate. However, it can be seen that foreign matter can be prevented from staying in the second trap 18.

Incidentally, in order to prevent foreign matter from staying in the drain trap, ideally, a round drain trap 200 (see FIG. 5) in which the entire drain trap has a smooth arc shape is preferable. However, the round drain trap 200 has a larger width (D2> D1) than the D-shaped second drain trap 18 according to the present embodiment, so that
The size of the garbage disposal device 1 is increased.

In addition, the D-shaped drain trap and the round drain trap have a straight line from the entrance to the bottom of the trap (hereinafter, this range is referred to as the first half of the trap).
The difference is that the shape is arc-shaped, and the area from the bottom to the outlet of the trap (hereinafter, this range is referred to as the latter half of the trap) is both arc-shaped and substantially the same. Therefore, in both traps, the flow velocity distribution is not largely biased in the latter half of the trap.

On the other hand, in the first half of the trap, both drainage (fluid) and foreign matter are accelerated by gravity to increase the flow velocity. Therefore, even if the first half of the trap is straight, the influence is small. Then, the inventors repeated various examinations and examinations, and found that the D-shaped drain trap (second
Since it was confirmed that a sufficient effect could be obtained by the drain trap 18), a D-shaped drain trap advantageous for miniaturization was adopted.

In the present embodiment, the flow rate Q1 of the washing water
Is set to be larger than the flow rate Q2 of the main drainage, the flow rate of the washing channel 19 can be secured, and even if the amount of water discharged from the sink drainage hole 3 is small, a sufficient cleaning effect can be obtained. Obtainable. (Second Embodiment) In the present embodiment, as shown in FIGS. 6 and 7, in order to clean foreign matters accumulated on the bottom 16a of the outer container 16, a portion corresponding to the decomposed water drain hole 15 on the outlet side of the cleaning water passage 19 is provided. The part to be opened is opened (opened) toward the decomposition water drainage hole 15 side (upper side), and is formed as an inclined water passage 19a which is inclined while drawing a substantially U-shape.

As a result, the foreign matter that has fallen from the decomposed water drain hole 15 directly falls into the inclined water channel 19a, and can be washed with washing water (drain from the sink drain hole 3). By the way, in the above embodiment, the D
Although the letter-shaped drain trap (the second drain trap 18) is applied to the garbage disposal apparatus 1, the application of the drain trap according to the present invention is not limited to the garbage disposal apparatus 1. It can also be applied to roads.

In the above-described embodiment, the waste trap according to the present invention has been described by taking, as an example, a garbage apparatus that crushes garbage in the crushing section 6 and then decomposes the garbage in the decomposition container 12. In addition, the drain trap according to the present invention can be applied to a garbage disposal apparatus of a type that does not have the crushing unit 6 and directly inputs garbage into the decomposition container 12.

[Brief description of the drawings]

FIG. 1 is a schematic view of a garbage processing apparatus.

FIG. 2 is a view taken in the direction of arrow A in FIG. 1;

3A is a schematic diagram of a D-shaped drain trap, and FIG. 3B is a schematic diagram of a U-shaped drain trap.

FIG. 4 is a graph showing a relationship between a flow rate (amount of water) and a limit foreign matter concentration.

FIG. 5 is a schematic view of a round drain trap.

FIG. 6 is a sectional view taken along line BB of FIG. 1;

FIG. 7 is a perspective view of FIG. 6;

[Explanation of symbols]

1 ... garbage disposal device, 2 ... sink, 3 ... sink drain hole,
10: Main drainage channel, 12: Decomposition container, 17: Secondary drainage channel, 1
8: second drain trap, 19: washing channel, 21: distribution plate.

Claims (3)

[Claims] 1. A drainage channel (17) for discharging drainage from a drainage hole (15) to a sewerage (9) side, and an unpleasant odor from the sewerage (9) flows back to the drainage hole (15) side. A drain portion that is connected to the drain hole (15) side.
And a circular arc portion (18b) connected to the sewer (9) side from the linear portion (18a) and formed in a substantially D-shape. 2. A drainage channel (17) for discharging wastewater flowing out of a garbage disposal device (1) for decomposing garbage with microorganisms to a sewage (9) side, and from the sewage (9) side. A waste trap for a garbage disposal apparatus for preventing an unpleasant odor from flowing back to an upstream side, wherein the straight section (18a) connected to the upstream side and the straight section (18a) are connected to the sewer side. A drain trap for a garbage disposal device, wherein the trap is formed in a substantially D-shape having an arc portion (18b) to be formed. 3. The sink drain hole (3) of a sink (2) for performing water work is connected to the sink drain hole (3) together with drain water.
A garbage disposal apparatus for decomposing garbage flowing out of the garbage with microorganisms, which contains a microorganism carrier (12a) for decomposing garbage and discharges decomposed water generated when the garbage is decomposed. Disassembly container (12) having a drain hole (15) at the bottom
And a main drainage channel (10) for discharging the wastewater to the sewer (9) side.
And separating the garbage and the waste water, and separating the garbage into the decomposition container (1).
2) and drains the wastewater to the main drainage channel (1).
0), a sub-drainage channel (17) for discharging the decomposed water discharged from the decomposed water drain hole (15) to the sewer (9) side, A part of the drainage separated in the transfer sections (8, 13) is led to the sub-drainage channel (17), and the sub-drainage channel (17)
A washing water passage (19) for washing foreign matter staying in the tank; and a drainage passage (17) provided in the middle of the auxiliary drainage passage (17), and an unpleasant odor from the sewer (9) flows back to the decomposition water drainage hole (15). And a drain trap (18) for preventing the decomposition water from draining.
5) A straight portion (18a) connected to the side and extending downward.
And an arc portion (18b) connected to the sewer (9) side, extending upward while drawing an arc connected to the straight portion (18a), and formed in a substantially D-shape. A garbage disposal device characterized by the following.