JPH08184085A - Opening-closing structure of sewer pipe - Google Patents

Abstract

PURPOSE: To interrupt an offensive odor coming from a sewer pipe while preventing the intrusion of vermin, etc., and to store kitchen utensils, etc., in a storage space section in the lower section of a sink efficiently in a space. CONSTITUTION: A cutoff valve 5 is mounted under the state, in which a part of a sewer pipe 3 annexed to a sink 1 is closed, and the cutoff valve 5 is held by an elastic body 7 brought to an opened state from the closed state of the sewer pipe 3 up to that time at the pressure of the flow of sewage passed through the sewer pipe 3. The cutoff valve 5 is moved by the reception of the weight of sewage containing crushed garbage from a disposer 4 and the sewer pipe 3 is opened when the sewage flows, but the cutoff valve 5 is returned to an original state by the elastic body 7 and the sewer pipe 3 is closed again when the sewage passes.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sewer pipe attached to a kitchen sink so that a part of the sewer pipe can be released from the previously closed state according to the flow of the sewage discharged from the sink. Opening and closing structure of sewer pipe.

[0002]

2. Description of the Related Art Sink water after washing food, tableware, etc. is discharged from a kitchen sink, and this waste water is passed as sewage after passing through a sewer pipe (sewage passage) connected to the outlet of the sink. Then, various processes are performed. Further, if the sewer pipe is left open, problems such as foul odors, harmful insects, and rats occur. Therefore, conventionally, a drain trap as shown in FIG. 2 is provided in a part of the sewer pipe below the sink.

That is, a drain trap 8 is provided by bending a part of a sewer pipe 3 provided below the discharge port 2 of the sink 1 into a U shape, and the drain trap 8 is provided with a sewage (a faucet). Water etc. from 10) is blocked so that a part of the sewer pipe 3 is blocked and the flow of air is blocked, so that the stench, pests, rats, etc. generated in the sewer pipe 3 from the U-shaped portion 9 ahead Does not come out of the discharge port 2 along the sewer pipe 3.

In recent years, in order to quickly and simply dispose of food waste produced in the kitchen, there has been a disposer (garbage crusher) 4 installed in a part of the sewer pipe 3 near the discharge port 2. . This is because the food waste thrown into the discharge port 2 is crushed by the disposer 4 and is flowed directly to the sewer pipe 3 together with the water from the faucet 10, and as a result, the U-shaped portion 9 of the drain trap 8 is used. Will leave sewage containing crushed food waste.

The sewer pipe 3 is usually installed in a storage space provided below the sink, and the drain trap 8 and the disposer 4 are also installed in the storage space.

[0006]

As described above, the sewer pipe 3
In the case where the drain trap 8 is provided, the sewage is accumulated in the U-shaped portion 9, and if left in this state for a long time, the sewage accumulated in the U-shaped portion 9 causes a bad odor and the discharge port 2 However, there is a problem in that it is impossible to completely prevent the generation of offensive odors.

In particular, when the disposer 4 is provided in a part of the sewer pipe 3, the food waste crushed by the disposer 4 is accumulated in the U-shaped portion 9 of the drain trap 8, and the food waste causes a bad odor. In addition to the higher incidence, the possibility of harmful insects such as rats and cockroaches due to the presence of food waste is extremely unhygienic considering the kitchen.

Further, since the drain trap 8 is piped in the storage space below the sink with the sewage pipe 3 bent in a U shape, when storing kitchen utensils or the like in this storage space. There is a problem in that the drain trap 8 becomes an obstacle, and kitchen utensils and the like cannot be stored in a space-efficient manner.

In view of the above, the present invention completely blocks offensive odors from the sewer pipe and prevents invasion of harmful insects such as rats and cockroaches, and further simplifies the piping in the storage space below the sink to reduce the kitchen waste. It is an object of the present invention to provide an opening / closing structure for a sewer pipe that can store articles and the like in a space-efficient manner.

[0010]

In order to solve the above-mentioned problems, an opening / closing structure for a sewer pipe according to the present invention is a sewer pipe provided with a shut-off valve in a state where a part of the sewer pipe attached to a sink is closed. The shut-off valve is an open / close structure that is held by the elastic force of the closed state to the open state by the pressure of the flow of the sewage passing through the sewer pipe. Further, in one aspect of the present invention, a garbage crusher (disposer) may be provided in a part of the sewer pipe, and a shutoff valve may be provided on the outlet side of the garbage crusher.

[0011]

[Function] The sewage discharged from the sink reaches the upper side of the shutoff valve through the sewage pipe. Then, the shutoff valve moves against the elastic force due to the weight of the sewage, and brings the sewer pipe from the closed state to the open state. Therefore, the sewage passes through the part of the shutoff valve and further proceeds through the sewer pipe. After the sewage passes through the shutoff valve, the shutoff valve returns to its original state due to the elastic force, and the sewer pipe is closed again. As a result, offensive odor in the sewer pipe ahead of the shutoff valve is blocked, and harmful insects such as rats and cockroaches cannot be invaded.

Further, even if a sewage crusher is provided in a part of the sewer pipe and the sewage from the sink contains crushed food waste, when the sewage reaches the upper side of the shutoff valve in the same manner as above. This shutoff valve moves to open the sewer pipe,
When sewage passes, the shut-off valve returns and closes the sewer pipe.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a configuration diagram showing an outline of an opening / closing structure for a sewer pipe according to an embodiment of the present invention, and FIG. 2 is an explanatory diagram showing a state in which sewage is flown into the opening / closing structure for a sewer pipe shown in FIG. A drain pipe 3 is provided from a drain port 2 on the bottom surface of the sink 1, and a disposer 4 is set near the drain port 2 of the drain pipe 3.

The sewer pipe 3 on the outlet side of the disposer 4 is provided with a shutoff valve 5 in an openable and closable state.
Therefore, the sewage sent from the outlet 2 reaches the shutoff valve 5 after passing through the disposer 4. In addition, whether to dispose the disposer 4 is arbitrary. Further, the sewer pipe 3 and the disposer 4 are arranged in a storage space (not shown) below the sink 1.

The shut-off valve 5 is biased upward by the elastic body 7 such as a coil spring toward the upper portion of the sewer pipe 3, that is, toward the upstream side of the flow of the sewage, and the protrusion 6 locks the upward movement. There is. By holding the shutoff valve 5 in such a state, the sewer pipe 3 is closed. Further, the shutoff valve 5 is pushed downward from the upper side to rotate against the elastic force of the elastic body 7, and is separated from the protrusion 6 to open the sewer pipe 3.

When the force from the upper side ceases to work, the shut-off valve 5 returns to its original state by the elastic force of the elastic body 7, and closes the sewer pipe 3 again. As the elastic body 7 for urging the shutoff valve 5 upward, various elastic bodies such as a leaf spring and rubber can be used in addition to the coil spring.

Further, the shutoff valve 5 itself may be formed of an elastic material such as rubber, and a part of the shutoff valve 5 may be fixed in the sewer pipe 3 to close the sewer pipe 3. Good. In this case, when the force pushed from the upper side acts, the shutoff valve 5 bends downward, thereby opening the sewer pipe 3. Then, when such a force does not work, the elastic force of the device itself causes the sewer pipe 3 to return to the original state in which the sewer pipe 3 is closed.

Next, a usage state of the opening / closing structure of the sewer pipe will be described. As shown in FIG. 2, food waste is put in through the outlet 2 and water is made to flow out through the faucet 10. As a result, the raw garbage is crushed by the disposer 4 and flows into the sewer pipe 3 as sewage together with water.

When the sewage reaches the upper side of the shutoff valve 5, the shutoff valve 5 receives the weight of the sewage and is pushed downward to rotate against the elastic force of the elastic body 7, Water pipe 3
To open. Therefore, the sewage will pass through the portion of the shutoff valve 5 and further proceed to the sewage pipe 3.

As described above, the shut-off valve 5 needs to be held by the elastic body 7 by a force that rotates (moves) by receiving the weight of sewage. This is because when the shutoff valve 5 is held by the elastic body 7 having a strong elastic force, if the amount of sewage is small, the shutoff valve 5
Is not moved and the sewer pipe 3 is not opened, so that the sewage is stored in the upper side of the shutoff valve 5 and causes an offensive odor or harmful insects. Therefore, as the elastic body 7, one having an elastic force that allows the shutoff valve 5 that receives the weight of the sewage to rotate even when the amount of the sewage flowing is small is appropriately selected and used.

When the sewage is only water (liquid), the shut-off valve 5 does not rotate so much that the sewage flows from the gap between the sewage pipe 3. On the other hand, when the sewage contains crushed food waste that has passed through the disposer 4, the shutoff valve 5 pivots largely, and the sewage pipe 3 is widely opened to allow the sewage to flow smoothly.

After the sewage has flowed, the shutoff valve 5 has the elastic body 7
Is restored by the elastic force of and the sewer pipe 3 is closed again. The above-described operation of the shutoff valve 5 is repeated every time sewage flows into the sewage pipe 3 (each time water or food waste is discharged from the discharge port 2).

Further, the position of the sewer pipe 3 provided with the shutoff valve 5 is not limited to the position below the disposer 4 as shown in the drawing. That is, it may be provided in any of the sewer pipes 3, and for example, the shutoff valve 5 may be provided in the outlet portion of the disposer 4 or the portion between the discharge port 2 and the disposer 4. Further, the shutoff valve 5 is not limited to being single. Therefore, two or more shutoff valves 5 may be continuously provided below the disposer 4, or one may be provided before the disposer 4 and the other after the disposer 4.

[0024]

As is apparent from the above description, the opening / closing structure of the sewer pipe of the present invention exhibits the following effects. When the sewage is not flowing, the shutoff valve blocks the sewage pipe, so that it is possible to completely block offensive odors from the sewage pipe and to reliably prevent invasion of harmful insects such as rats and cockroaches. Furthermore, even if the sewage contains crushed food waste that has passed through the disposer, it is possible to reliably block offensive odors and prevent invasion of harmful insects. There is no need to bend the sewer pipe extending downward from the sink, and in order to simplify the piping in the storage space below the sink, when storing kitchen utensils etc. in this storage space,
The sewer pipe does not become a hindrance, and kitchen utensils can be stored in a space-efficient manner.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing an outline of an opening / closing structure for a sewer pipe according to an embodiment of the present invention.

FIG. 2 is an explanatory view showing a state in which sewage is caused to flow through the opening / closing structure of the sewer pipe shown in FIG.

FIG. 3 is a configuration diagram showing an outline of a conventional sewer pipe below a sink.

[Explanation of symbols]

 1 Sink 2 Discharge Port 3 Sewage Pipe 4 Disposer 5 Shutoff Valve 6 Protrusion 7 Elastic Body 8 Waste Water Trap 9 U-shaped Part 10 Faucet

Claims (2)

[Claims] 1. A structure for opening and closing a sewer pipe, wherein a shut-off valve is provided in a state where a part of the sewer pipe attached to a sink is closed, wherein the shut-off valve controls the flow of sewage flowing through the sewer pipe. An opening / closing structure for a sewer pipe, which is held by an elastic force that changes from a closed state to an open state by pressure. 2. The opening / closing structure for a sewer pipe according to claim 1, wherein a part of the sewer pipe is provided with a food waste crusher (disposer), and the shutoff valve is provided at an outlet side of the food waste pulverizer.