Valve plug separation ring water inlet air pressure seal type deodorizing floor drain

Abstract

This invention relates to a valve-plug separated, ring-inlet, air-pressure sealed odor-proof floor drain, comprising a base bowl, a drain cover, and a sealing bowl made of elastic material, with the sealing bowl installed below the drain cover. The upper edge of the drain outlet at the bottom of the base bowl serves as the valve port, and the top is the base bowl surface. A ring-shaped cover support is located below the base bowl surface. The outer periphery of the opening at the bottom of the sealing bowl forms a sealing ring that fits against the valve port. The cavity formed by the sealing bowl and the drain cover communicates with the drain pipe through the opening. Water flowing above the drain flows through the edge of the drain cover into the space between the base bowl and the sealing bowl, causing the sealing bowl to deform and then flowing into the drain pipe through the space between the valve port and the sealing ring. This invention is designed to solve the problem of indoor odors in civil and industrial buildings. It cleverly utilizes indoor negative pressure, making the valve port seal tighter the greater the pressure difference, thus improving odor prevention. The valve port and sealing element are separate, significantly reducing contaminants on the valve port, extending the cleaning cycle, and reducing cleaning difficulty. This invention has a simple structure, is lightweight, and has reliable performance, greatly reducing maintenance work.

Description

Technical Field

[0001] This invention relates to a valve-plug separated ring-inlet air pressure sealing type odor-proof floor drain, which is particularly used for the inlet of gray water channels in civil and industrial buildings, and belongs to the field of valve technology. Background Technology

[0002] The device used for discharging grey water from the ground in industrial and civil buildings is collectively referred to as a floor drain. From a professional perspective, it is essentially a one-way valve. It is this one-way valve that often emits foul odors, which seriously affects the living environment.

[0003] The primary reason for foul odors coming back from the floor drain is the negative pressure inside the room. To maintain warmth, doors and windows are closed during winter and summer, creating a sealed space. If a range hood is turned on at this time, a negative pressure of three to five kilopascals may be generated indoors. Additionally, the increasing height of residential buildings creates a chimney effect, which also contributes to negative pressure. However, negative pressure is merely a condition for foul odors coming back from the floor drain—an external factor. More importantly, the fundamental cause—an internal factor—is that the one-way valve on the floor drain is not sealing properly.

[0004] The one-way valves inside floor drains on the market today can be roughly divided into four categories. The oldest type is the water seal floor drain, which has a ring-shaped water trap in its drain bowl. There is an inverted bowl under the drain cover that fits into the water trap. Although the structure is simple, it cannot prevent odors once the water in the water trap dries up.

[0005] The most common type of valve is the swing valve. Because swing valves have high resistance, they need to be inserted deep into the drain pipe. The deeper the valve is, the faster the water flows. This has led to the creation of the famous brand floor drain "submarine". With long-term use, the swing valve shaft will wear down and the sealing performance will decrease. Hair and other fibers will accumulate at the valve opening, making it difficult to avoid incomplete sealing. Debris in the gray water flowing into the floor drain often clogs the valve opening, and cleaning the swing valve inserted deep into the sewer is very inconvenient.

[0006] Duckbill valves are a relatively effective way to suppress odors from sewers, especially given the recent dominance of high-rise residential buildings and the continuous improvement in the performance of range hoods. The new duckbill valves have a perfect seal, but after a period of use, debris such as hair, fabric, and sand can still prevent the valve from completely sealing. To avoid backflow of odors, frequent cleaning is required, and removing the duckbill valve from deep within the sewer can be quite dirty.

[0007] Magnetic check valves, also known as "magnetic levitation floor drains," do not have the wear problem compared to swing gate check valves. However, the magnet at the grey water valve port will attract all the ferromagnetic materials passing through the valve port, and of course, it also faces the cleaning problem of swing gate valves.

[0008] In summary: regardless of whether it's a swing valve, duckbill valve, or magnetic levitation valve, they all need to be installed deep within the sewage pipe. The deeper the installation, the better the effect. Therefore, the floor drain standard includes the concept of 50mm below the ground! The above-mentioned types of one-way valves used in grey water or sewage channels must be cleaned regularly to prevent odors from escaping. The sewer pipes are very dirty, and the deeper the one-way valve is installed, the worse the experience will be when removing it for cleaning.

[0009] To address the difficulties in cleaning one-way valves and the resulting odor problems in floor drains, it is necessary to provide a new type of odor-proof floor drain to reduce odors in the drainage channel and minimize the hassle of cleaning the one-way valve. Summary of the Invention

[0010] The purpose of this invention is to provide a valve-plug separated ring-inlet air pressure sealing type odor-proof floor drain to overcome the shortcomings of existing floor drain technology.

[0011] A valve-plug separated ring-inlet air pressure sealing type odor-proof floor drain, characterized in that it includes a floor bowl, a floor drain cover, and a sealing bowl made of elastic material, said sealing bowl being installed below the floor drain cover; The bottom of the bowl has a drain outlet, the upper edge of which is a valve opening. The top of the bowl is the bottom bowl surface, and a ring-shaped cover plate support is provided below the bottom bowl surface. The sealing bowl has an opening at its bottom, and a sealing ring that fits the valve port is located around the outer periphery of the opening. The top of the sealing bowl is an annular sealing surface, and the part between the sealing surface and the sealing ring is a transition ring. The sealing surface is in close contact with the bottom surface of the drain cover. The cavity formed by the sealing bowl and the drain cover is connected to the drain pipe through the opening. Water above the drain flows through the edge of the drain cover into the interlayer between the drain bowl and the sealing bowl, causing the sealing bowl to deform, and then flows into the drain pipe through the space between the valve port and the sealing ring.

[0012] The valve opening at the upper edge of the drain outlet protrudes upwards to better seal with the sealing ring.

[0013] The sealing bowl is made of rubber material.

[0014] The lower edge of the opening of the sealing bowl is provided with a counterweight ring so that the sealing ring can fit tightly against the valve port.

[0015] The aforementioned valve-plug separated ring-inlet air pressure sealing odor-proof floor drain also includes a shaped support and fastening screws inside the sealing bowl. The sealing bowl is installed below the floor drain cover via the shaped support and fastening screws.

[0016] The shaping support is installed on the upper part of the inner cavity of the sealing bowl and located below the valve cover. It has an internal thread that mates with the fastening screw. The fastening screw passes through the valve cover from the center downward and connects with the internal thread of the shaping support to achieve the fastening of the valve cover and the sealing bowl.

[0017] This invention is designed to solve the problem of unpleasant odors in the interior of industrial and civil buildings. It cleverly uses indoor negative pressure so that the greater the pressure difference, the tighter the valve seal, making the odor prevention more effective.

[0018] The valve port and the sealing element are separate, which significantly reduces contaminants on the valve port, extends the cleaning cycle, and reduces the difficulty of cleaning. There is no longer a need to manually remove hair and fabric from the dirty valve port.

[0019] This invention has a simple structure, is lightweight, and has reliable performance, which can greatly reduce maintenance work. Attached Figure Description

[0020] Figure 1 This is a cross-sectional view of the assembly of the present invention.

[0021] Figure 2 This is a three-dimensional schematic diagram of the present invention.

[0022] Figure 3 This is a schematic diagram of the bowl of the present invention, wherein... Figure 3 A is a cross-sectional view. Figure 3 B is a three-dimensional view.

[0023] Figure 4 This is a schematic diagram of the sealing bowl of the present invention, wherein... Figure 4 A is a cross-sectional view. Figure 4 B is a three-dimensional view.

[0024] Figure 5 This is an assembly diagram of the drain cover of the present invention, wherein... Figure 5 A is a top-down view from a slight angle. Figure 5 B is a bottom-view perspective.

[0025] Among them, 1. bottom bowl, 11. valve port, 12. drain outlet, 13. cover plate support platform, 14. bottom bowl surface.

[0026] 2. Sealing bowl, 21. Sealing ring, 22. Transition ring, 23. Counterweight ring, 24. Sealing surface.

[0027] 3. Floor drain cover.

[0028] 4. Shaping support components.

[0029] 5. Tighten the screws. Detailed Implementation

[0030] like Figure 1-5 As shown, the valve-plug separated ring-inlet air pressure sealing type odor-proof floor drain is characterized by a floor bowl 1, a floor drain cover 3, and a sealing bowl 2 installed on the floor drain cover 3. The floor bowl 1 has an upwardly protruding valve port 11 around the central drain hole at the bottom. The floor drain cover 3 and the sealing bowl 2 can be connected by a shaping support 4 and a fastening screw 5 inside the sealing bowl 2.

[0031] like Figure 1 , 3 The bottom drain hole 12 of the bowl 1 has an upward-protruding valve port 11 around it, and the bowl surface 14 at the top of the bowl has a cover plate support platform 13.

[0032] like Figure 1 , 4 5. The sealing bowl 2 includes a sealing ring 21, a transition ring 22, a counterweight ring 23, and a sealing surface 24, all made of rubber-like elastic material. The sealing ring 21 cooperates with the valve port 11 on the bottom bowl to form a one-way valve. The transition ring 22, also called a deformation ring, provides conditions for the sealing ring 21 to move up and down. The counterweight ring 23 ensures that the sealing ring 21 and the valve port 11 are in close contact, maintaining the one-way valve closed. The sealing surface 24 is used for connection and sealing.

[0033] The bottom of the sealing bowl 2 has a counterweight ring 23 forming a circular hole. This circular hole allows the inner cavity of the assembled floor drain seal to communicate with the sewer channel. When the indoor pressure is negative relative to the sewer, the inner cavity of the sealing bowl 2 and the inner side of the transition ring 22 are the same as the pressure in the sewer and thus have positive pressure, pressing the sealing ring 21 of the sealing bowl 2 tightly onto the valve port 11 of the floor bowl 1. This is called "pressure-assisted sealing". When water flows into the sewer through the floor drain, the flow of water will drive the air flow, creating a slight negative pressure in the inner cavity of the sealing bowl 2 and the inner side of the transition ring 22, which helps to further open the valve port 11.

[0034] This invention achieves sealing by pressing the sealing ring 21 at the lower edge of the elastic sealing bowl 2 against the valve port 11. Furthermore, since modern building doors and windows generally have better sealing performance than before, the negative pressure generated indoors by the range hood and chimney effect of high-rise buildings can be used to seal the one-way valve port in the floor drain even more tightly. When greywater flows into the underground channel through the floor drain valve port, the negative pressure generated by the free-falling greywater helps to further open the valve port. The valve port 11 and the sealing diaphragm assembly for closing the valve port 11 are separate components, thus facilitating cleaning of the valve port 11 without needing to retrieve the one-way valve from deep within the sewage pipe for cleaning.

Claims

1. A ring-inlet air pressure-sealed odor-proof floor drain with valve plug separation, characterized by: It includes a floor bowl (1), a floor drain cover (3), and a sealing bowl (2) made of elastic material, the sealing bowl (2) being installed below the floor drain cover (3); The bottom of the bowl (1) has a drain outlet (12), the upper edge of the drain outlet (12) is a valve outlet (11), the top of the bowl (1) is a bottom bowl surface (14), and a ring-shaped cover plate support platform (13) is provided below the bottom bowl surface (14). The sealing bowl (2) has an opening at the bottom, and a sealing ring (21) that fits the valve port (11) around the outer periphery of the opening. The top of the sealing bowl (2) is an annular sealing surface (24), and the part between the sealing surface (24) and the sealing ring (21) is a transition ring (22). The sealing surface (24) is in close contact with the bottom surface of the drain cover (3). The cavity formed by the sealing bowl (2) and the drain cover (3) is connected to the drain pipe through the opening. Water above the drain flows through the edge of the drain cover (3) into the interlayer between the bowl (1) and the sealing bowl (2), causing the sealing bowl (2) to deform and flow into the drain pipe between the valve port (11) and the sealing ring (21).

2. The valve-plug separated ring-inlet air pressure sealing type odor-proof floor drain as described in claim 1, characterized in that: The valve port (11) on the upper edge of the drain outlet (12) protrudes upward.

3. The valve-plug separated ring-inlet air pressure sealing type odor-proof floor drain as described in claim 1, characterized in that: The sealing bowl (2) is made of rubber material.

4. The valve-plug separated ring-inlet air pressure sealing type odor-proof floor drain as described in claim 1, characterized in that: The lower edge of the opening of the sealing bowl (2) is provided with a counterweight ring (23).

5. The valve-plug separated ring-inlet air pressure sealing type odor-proof floor drain as described in claim 1, characterized in that... It also includes a shaping support (4) and a fastening screw (5) inside the sealing bowl, the sealing bowl (2) being installed below the drain cover (3) by the shaping support (4) and the fastening screw (5).

6. The valve-plug separated ring-inlet air pressure sealing type odor-proof floor drain as described in claim 5, characterized in that: The shaping support (4) is installed on the upper part of the inner cavity of the sealing bowl (2) and located below the valve cover (3). It has an internal thread that mates with the fastening screw (5). The fastening screw (5) passes through the valve cover (3) from the center downward and is connected to the internal thread of the shaping support (2) to achieve the fastening of the valve cover (3) and the sealing bowl (2).

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