JPH0573069U - Odor sealing mechanism for drains such as bathrooms - Google Patents

Abstract

(57) [Summary] [Purpose] In drainage facilities such as bathrooms, the purpose is to completely block off bad odors from other drainage facilities. [Structure] The mechanism according to the present invention includes an external hole 8 formed in the drainage path at an appropriate position in front of the drainage path with the residual water reservoir 5 as a boundary, and a valve 9 for sealing the hole 8. Have. The valve 9 serves to maintain the closed state of the normal hole 8 by an appropriate biasing means, and eliminates the negative pressure only when the internal pressure in the front of the reservoir 5 becomes lower than that in the rear of the reservoir 5. The hole 8 is opened in order to do so. Therefore, when a negative pressure is generated behind the pool 5 in the drainage route, the water in the pool 5 is not sucked by the drainage pipe 2 and disappears, and the airtightness of the drainage route is maintained.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to improvement of an odor sealing mechanism for drainage outlets such as bathrooms.

[0002]

[Prior Art]

 At home, sewage, whether it comes from the bath or from washing, sinking, etc., is finally poured from each drain pipe into a single main drain pipe and discarded in a batch. For this reason, for example, the malodor produced by the drainage water from hand washing may flow through the main drainage pipe into another drainage pipe, for example, the drainage pipe leading to the washing area of the bath, and be discharged from there to the bathroom. In order to cut off the path of such bad odor from others, for example, an odor sealing mechanism as shown in FIG. 2 has been conventionally adopted. In this mechanism, a drainage chamber 1 which is recessed more than others is formed in a floor 100 such as a bath washing place, and a connection port 11 provided in a bottom portion 10 of the drainage chamber 1 is connected to a drainage pipe 2. There is. The upper part of the drainage chamber 1 is covered with a cage-shaped upper lid 3. The upper part 12 of the connection port 11 is higher than the other parts of the bottom part 10 of the drainage chamber 1, and is formed by the inner peripheral surface of the drainage chamber 1, the bottom part 10 and the outer peripheral surface of the connection port 11. It is possible to store water as a part of the reservoir 5. The reservoir 5 is covered with a bowl-shaped inner lid 6 having a notch at an appropriate position on the outer peripheral edge of the opening. The cutout portion forms the water passage 7 together with the bottom portion 10 by disposing the inner lid 6 in the state shown in FIG. 2. As shown by the arrow, such an odor sealing mechanism advances the drainage W that has entered the drainage chamber 1 from the washing area through the cage-shaped upper lid 3 into the inner lid 6 through the water inlet 7, and from here, from the connection opening 11. The drainage W is sent to the drainage pipe 2. Then, even after the drainage W has flowed, a part of the drainage W remains in the pool 5 and seals the gas flow in the drainage path from the drainage chamber 1 to the connection port 11 and backflows from the inside of the drainage pipe 2. It blocks the coming stench.

[0003]

[Problems to be solved by the invention] However, when a large amount of water is washed at one time by hand washing, the atmospheric pressure in the main drain pipe is reduced all at once, and a negative pressure is also generated in the drain pipe 2 in the bathroom, causing the above-mentioned pool. Occasionally, the residual water of No. 5 was also absorbed. For this reason, there is no obstruction of the bad odor coming through the drainage pipe 2, and the bad odor is filled in the bathroom. The conventional odor sealing mechanism was unable to cope with such a situation, and was eventually given up as being unable to completely eliminate the malodor. The present invention is intended to solve such a problem.

[0004]

[Means for Solving the Problems]

 Therefore, the odor sealing mechanism of the drainage outlet of the bathroom according to the present invention has a residual water reservoir 5 in the middle of the drainage path provided in the floor of the bathroom washing room, etc. In addition, the following structure is adopted in the odor sealing mechanism of the drainage outlet such as the bathroom which keeps the airtightness by blocking the ventilation in the front and rear of the drainage path after the drainage. That is, at an appropriate position in front of the drainage path with the residual water reservoir 5 as a boundary, there is a hole 8 formed in the middle of the drainage path and communicating with the outside, and a valve 9 for sealing the hole 8. The valve 9 maintains the closed state of the normal hole 8 by an appropriate biasing means, and this negative pressure is maintained only when the inside pressure of the front of the reservoir 5 becomes lower than that of the rear of the reservoir 5. The hole 8 is opened to eliminate it.

[0005]

[Action]

 In the present invention having the above configuration, when negative pressure is generated behind the drainage reservoir 5, the hole 8 is opened and air is introduced from outside to the drainage reservoir 5 to eliminate the negative pressure. It is possible to

[0006]

【Example】

 An embodiment of the present invention will be specifically described below with reference to the drawings. FIG. 1 shows an embodiment of the present invention. As shown in the figure, a drainage chamber 1 which is recessed from the other is formed on a floor surface 100 such as a bath washing place and leads to a drainage pipe 2. 101 indicates a tile. The invention of the present application is implemented by utilizing the facilities around water. The following will be described in order.

The drainage chamber 1 may be formed by burying a tank-shaped member made of a liquid-tight material in the floor surface 100, but it is simply recessed in the floor surface 100 itself. May be provided. When the floor surface 100 is directly formed with a recess as described above, the inner wall of the drainage chamber 1 may be made liquid-tight by appropriate coating or the like. A connection port 11 is formed at approximately the center of the bottom portion 10 of the drainage chamber 1 and is connected to the drainage pipe 2. The upper part of the drainage chamber 1 is covered with a cage-shaped upper lid 3 having a plurality of drain holes 30.

The upper part 12 of the connection port 11 is higher than other parts of the bottom part 10 of the drainage chamber 1, and is formed on the inner peripheral surface 15 and the bottom part 10 of the drainage chamber 1 and the upper outer peripheral surface 14 of the connection port 11. Therefore, the pool 5 is formed. The pool 5 can store water up to the position 12 above the connection port 11. Therefore, the outer diameter of the connection port 11 is smaller than the inner diameter of the connection port 11 to the extent that the reservoir 5 can be formed.

The reservoir 5 is covered with a bowl-shaped inner lid 6. The outer diameter of the inner lid 6 is smaller than the diameter of the inner peripheral surface 15 of the drainage chamber 5, and the inner diameter of at least the portion entering the reservoir 5 is larger than the outer peripheral surface 14 of the connection port 11. .. The inner lid 6 is formed so that the opening peripheral edge 16 of the inner lid 6 is located substantially in the middle between the inner peripheral surface 15 of the drainage chamber 5 and the outer peripheral surface 14 of the connection port 11 when viewed in cross section. Keep it.

At appropriate positions on the outer peripheral edge 16 of the opening, a suitable number of notches having a height lower than those of others are provided. As shown in FIG. 1, when the bowl-shaped inner lid 6 is arranged in the reservoir 5, the cutout portion forms the water passage 7 together with the bottom portion 10.

A hole 8 penetrating from the inside to the outside of the inner lid 6 is formed at the top of the inner lid 6. A valve 9 is provided in this hole 8. This valve 9 always closes the hole 8 when the atmospheric pressure inside the inner lid 6 is equal to or larger than the atmospheric pressure outside the inner lid 6, and shuts off the ventilation between the inside and the outside of the inner lid 6. ing.

Explaining the structure of the valve 9 in detail, the base end of the valve 9 is rotatably fixed to the back surface 17 of the inner lid 6 via a hinge 90. The upper surface 91 of the valve 9 is provided with a pulling bar 60 having one end fixed to the upper surface 91 and the other end fixed to the back surface 17 of the inner lid 6. When the air pressure inside the inner lid 6 is equal to or higher than the air pressure outside the inner lid 6, the valve 9 is pulled toward the hole 8 side and the hole 8 is closed by the pull-out ridge 60. Therefore, the hole 8 is normally sealed. On the contrary, when the pressure inside the drain pipe 2 becomes negative, that is, when the air pressure inside the inner lid 6 becomes smaller than the pressure outside the inner lid 6, the valve 9 receives the suction from the drain pipe 2. Separated from the hole 8, the air outside the inner lid 6 is introduced into the inner lid 6 through the hole 8. In this way, the negative pressure in the drain pipe 2 is eliminated. In order to smoothly perform such an operation, the pulling bar 60 has a pulling force that pulls the valve 9 toward the hole 8 when the inner and outer pressures of the inner lid 6 are equal. The valve 9 is assumed to have a pulling force enough to open the hole 8 when a negative pressure that absorbs water is generated. When the inner and outer pressures of the inner lid 6 are equal, in order to maintain the airtightness and the liquidtightness between the inner and outer portions of the inner lid 6, a portion of the hole 8 contacting the peripheral edge of the inner lid back surface 17 side or the hole 8 of the valve 9. Alternatively, it is effective if rubber or other packing is provided on both of them to allow sufficient sealing (not shown).

Further, instead of providing a separate drawing strip 60 as in the above-described embodiment, a flexible material is adopted for the valve 9 itself, and the base of the valve 9 is directly attached to the back of the inner lid 6 without a hinge 90. It is assumed that the valve 8 is fixed to the surface 17 and the valve 8 is always closed from the inside of the inner lid 6, and the portion that was in contact with the hole 8 of the valve 9 when a negative pressure is generated inside the inner lid 6 is inside the inner lid 6. The same effect can be obtained even if the hole 8 is bent to the side and opened. In this case, the valve 9 needs to be formed to have a weak rigidity so that it can be fully flexed against negative pressure.

In the above-described embodiment, the present invention is applied to the drainage chamber 1 in which the inner lid 6 is dropped, but the present invention is not limited to such a drainage path. For example, the hole 8 and the valve 9 and, if necessary, the spring 60 may be provided in front of the reservoir of the drainage pipe which is formed in an S shape to secure the reservoir.

[0015]

[Effect of the device]

 By implementing the present invention, when a negative pressure is generated behind the pool in the drainage path, this negative pressure can be completely eliminated, and the residual water in the pool does not disappear. Therefore, by adopting the mechanism according to the present invention, it is possible to prevent the bad odor from being filled with the bad odor from the other in the bathroom or the room where the drainage system is installed. The comfort could be improved significantly.

[Brief description of drawings]

FIG. 1 is a vertical sectional view showing an embodiment of the present invention.

FIG. 2 is a vertical sectional view showing a conventional example.

[Explanation of symbols]

 5 Reservoir 8 holes 9 valve

Claims (1)

[Scope of utility model registration request] 1. A residual water reservoir is provided in the middle of a drainage path provided in a floor such as a bath washing area.
Part of the wastewater always remains, and even after drainage, the residual water pool is used as a boundary in the odor sealing mechanism at the drainage outlet, which keeps airtightness by blocking the ventilation in the front and rear of the drainage path. At the appropriate position in front of the drainage route, there is a hole formed in the middle of the drainage route and communicating with the outside, and a valve for sealing this hole. Is maintained, and only when the inside pressure in the front of the pool is lower than that in the back of the pool, holes are opened to eliminate this negative pressure. Odor sealing mechanism.