CN110042908B

CN110042908B - Floating disc valve floating seal floor drain

Info

Publication number: CN110042908B
Application number: CN201910458148.2A
Authority: CN
Inventors: 朱希沄; 朱睿
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-05-29
Filing date: 2019-05-29
Publication date: 2024-04-12
Anticipated expiration: 2039-05-29
Also published as: CN110042908A

Abstract

The invention provides a floating seal floor drain with a floating disc valve, which is provided with an upper drainage and water collection structure, a lower drainage and water guide structure, an upper floating disc separation structure, a middle floating disc separation structure and a lower floating disc separation structure, wherein the floating seal floor drain comprises a shell, a top cover, a separation frame gasket, a separation frame sealing ring, a separation frame bottom and a separation frame bottom gasket which are fixedly connected with the shell, and an upper floating disc valve, a middle floating disc valve and a lower floating disc valve which are positioned in the upper drainage and water collection structure, the lower drainage and water guide structure. Gravity and buoyancy force cause the float valve to shift positions. When the water is not drained, the lower surfaces of the upper floating disc valve, the middle floating disc valve and the lower floating disc valve are attached to the supporting part to form a triple isolation or partition and a double air chamber, so that the isolation or partition of an upper space and a lower space is realized, and good insect prevention and deodorization effects are achieved; when draining, the upper floating disc valve, the middle floating disc valve and the lower floating disc valve are not attached to the supporting part to form a sewage and water sewage channel; when water is reflected, the upper surfaces of the middle floating disc valve and the lower floating disc valve are attached to the supporting part to form a double-layer water-reflecting prevention barrier, so that sewage is prevented from flowing into a room.

Description

Floating disc valve floating seal floor drain

Technical Field

The invention relates to a novel floor drain, in particular to a floating disc valve floating seal floor drain which is deodorizing, insect preventing, anti-fouling water backflow, anti-blocking, smooth and easy to maintain.

Background

The floor drain is an important component for connecting the indoor and the sewer and is inlaid on the ground. It is not only the outlet for the sewage of the kitchen and toilet floors to drain to the outside, so as to keep the kitchen and toilet floors sanitary; also is an inlet for dirty air, pests and viruses in the sewer to attack indoors, and brings the problem that the indoor environment is influenced by the sewer.

At present, floor drain technologies for preventing sewage polluted air and diseases and insect pests from invading indoors can be classified into two types, namely a water seal technology and a two-self-seal technology. Accordingly, the floor drain on the market is divided into two types, one is a water seal floor drain and the other is a straight-through type self-sealing floor drain.

The structural commonality of the water seal floor drain is that a water bay with a U-shaped cross section is formed in the floor drain, the middle part is provided with a sewage pouring outlet, and a water seal buckle clock is arranged above the sewage pouring outlet. The water seal buckle clock is a reversely buckled suspended small bowl. A through passage between the inner cavity of the sewer and the indoor space is arranged between the lower edge of the water seal buckle clock and the inner surface of the water seal floor drain. The basic principle of the water seal technology is to drain sewage in the trapped part of the water bay, separate the indoor space from the sewer inner cavity space by utilizing the sewage, isolate the connection between the indoor air and the sewer inner cavity air and prevent the invasion of the sewer polluted air, pests and viruses into the room.

When the sewage is discharged under water, the water-blocking part of the floor drain discharges the sewage under water to form a water-sealing belt. If the water surface of the water seal belt reaches or is higher than the immersed height (the height from the plane of the bottom of the water bay to the plane of the lower edge of the water seal buckle clock), the lower edge of the water seal buckle clock is immersed in the water seal belt. The floor drain body is adhered to the floor, and the outer wall of the sewer is adhered to the floor. The floor drain main body, the water seal belt and the water seal buckling clock are matched with each other under the condition that the water seal belt submerges the lower edge of the water seal buckling clock, an indoor space and an inner cavity of a sewer are partitioned, and a passage of dirty air of the sewer, which invades indoor air through the floor drain, is blocked. The water amount in the water seal ground water leakage bay is different, the time for the water surface of the water seal belt to descend to the lower edge of the water seal buckle clock is different, and the time is short for hours and long for days.

Under the condition that the water seal belt can not submerge the lower edge of the water seal buckle clock or water is not in the water bay, the inner cavity of the sewer is directly communicated with the indoor space. The polluted air in the sewer can directly attack the indoor through the floor drain, and various pests and viruses can also be driven into the indoor through the floor drain, so that the physical and mental health of people can be directly endangered. This is a common disadvantage of water seal floor drains. The water seal ground leakage bay is small, and the duration time for isolating the indoor space from the inner cavity of the sewer is short; the water seal ground water leakage bay is large, stains are deposited, sewage is easy to become smelly, and the sewage becomes a new pollution source. In addition, the water seal floor drain does not have the function of preventing water return, and a sewage water drainage channel is a sewage water upward return channel.

The structural commonality of the self-sealing floor drain is that the inner cavity of the floor drain down pipe and the inner cavity of the sewer are separated by a valve plate, so as to form a barrier for separating the inner cavity of the sewer from the indoor space. The valve plate patterns are various, and the corresponding principle details are distinctive. The existing eccentric block type floor drain, spring type floor drain, silica gel type sealing floor drain, gravity mechanical lever type floor drain, T-shaped floor drain with two magnets attracted, positive and negative synchronous T-shaped floor drain with magnetic poles and the like in the market are all through type self-sealing floor drain examples adopting a valve plate separation technology. The difference is that the valve plates are different in style, the valve is driven to be closed in different modes, and the structure is different.

The basic principle of the self-sealing technology is that a valve plate is arranged in the floor drain to separate the indoor space from the inner cavity space of the sewer. When no sewage is discharged, the valve plate is closed on the valve seat; when the sewage is discharged downwards, the valve plate is opened by the gravity of the sewage, and the sewage is discharged downwards through the gap between the valve plate and the valve seat. When the sewage stops draining, and the opening force of the sewage acting on the valve plate is smaller than the closing driving force born by the valve plate, the valve plate is closed on the valve seat again.

When the sewage begins to drain, the valve plate, the valve seat and the sewage drain form a barrier; this barrier persists during sewage drainage. It cuts off the indoor space and the sewer inner cavity space, the sewer dirty air is blocked by the passage of the indoor air invaded by the floor drain, and the possibility of invasion of pests and viruses to the indoor is eliminated. When the sewage stops draining, the valve plate is closed on the valve seat again, and the barrier does not exist any more along with the disappearance of residual water between the valve plate and the valve seat.

There is an inherent gap between the valve plate and the valve seat. The gap is a through channel for communicating the indoor space with the inner cavity of the sewer. The area is smaller than that of the sewage drain. The valve plate has the function of changing the connecting channel between the indoor space and the inner cavity of the sewer from a large caliber to a small caliber, so that the valve plate separation technology is an airflow throttling technology. The space between the indoor space and the inner cavity space of the sewer is kept apart except for the sewage draining process and the short residual water evaporating process.

The sewage is discharged through the floor drain, and filiform substances such as hair, granular substances such as sand and stone and dust stains dissolved in the water are mixed in the sewage. After the sewage is discharged, filiform substances, particles, dust and dirt adhere to the valve plate and the valve seat; in the sewage draining process, the phenomenon that filaments wind mechanical parts such as the valve plate and the like can occur, so that the valve plate closing is affected. Whether the filiform matters, the particles and the dust stains are adhered to the valve plate and the valve seat, or the valve plate is closed and influenced, the inherent gap between the valve plate and the valve seat is enlarged. The upward return sewage can enter the room through the inherent gap. In addition, the straight-through self-sealing floor drain has the advantages of complex structure, high component failure rate and inconvenient maintenance.

At present, the water sealing technology and the self-sealing technology can not realize the continuity of the separation of the sewer space and the indoor space, the problem that the polluted air of the sewer invades the indoor air frequently exists, and the phenomenon that pests and viruses are driven into the indoor space continuously occurs. The difference between the two is that the indoor space and the sewer inner cavity space keep the duration difference of the separated state; when the indoor space is directly communicated with the sewer inner cavity space, the quantity of sewer air entering the indoor space in unit time is different, and the possibility that pests and viruses are driven into the room is different. The water seal technology can not prevent sewage from flowing back, and the self-sealing technology can prevent the sewage from flowing back from being determined by the closing condition of the valve plate.

Therefore, how to prevent odor, insects and dirt and water from flowing back is a problem to be solved in floor drain research, and the research direction of future floor drains is led; how to realize reliable and easy maintenance of the floor drain is an important point to be considered in future floor drain research and development.

Disclosure of Invention

The invention aims to provide a floating disc valve floating seal floor drain so as to solve the problems of the existing floor drain.

In order to achieve the purpose, the invention adopts the following specific technical scheme:

the floor drain comprises an upper hollow shell, a lower hollow shell, wherein an upper-stage floating disc separation structure and a lower-stage floating disc separation structure are arranged in the shell, the upper-stage floating disc separation structure comprises an upper floating disc valve, the upper floating disc valve can be supported, the lower-stage floating disc separation structure comprises a lower floating disc valve, and the lower floating disc valve can be supported at the bottom of the shell; the water flow enters from the water inlet at the upper part of the shell, impacts the upper floating disc valve, floats up, and continuously impacts the lower floating disc valve after passing through the upper floating disc separation structure, and the lower floating disc valve floats up, and the water flow flows out from the water outlet at the bottom of the shell through the lower floating disc separation structure.

Further, a middle-level floating disc separation structure is arranged in the floating disc valve floating seal floor drain to form a three-level floating disc separation structure; the intermediate floating disc separation structure comprises an intermediate floating disc valve which can be supported; the water flow enters from the water inlet at the upper part of the shell, impacts the upper floating disc valve, floats up through the upper floating disc separation structure, continuously impacts the middle floating disc valve, continuously flows into the lower floating disc separation structure through the middle floating disc separation structure, floats up through the lower floating disc valve, and flows out from the water outlet at the bottom of the shell through the lower floating disc separation structure.

Further, a separation frame is further arranged in the shell and used for supporting the floating disc valve, the floating disc valve is in tangential contact with a separation frame gasket, and the separation frame is tightly contacted and fixed with the shell through a separation frame sealing ring.

Further, a separation frame bottom is further arranged at the lower part of the separation frame in the shell, the separation frame bottom is used for supporting the middle floating butterfly valve and is used for supporting the lower floating butterfly valve, the middle floating butterfly valve is in tangential contact with the separation frame bottom gasket, and the separation frame bottom is tightly contacted and fixed with the shell through the separation frame bottom sealing ring.

Further, the housing, the partition frame and the partition frame bottom can be designed as an integral or split structure as long as the effect of supporting the butterfly valve can be produced.

Furthermore, a spacer gasket is embedded in the inner wall of the spacer, the spacer gasket is an annular gasket with a certain thickness, and the upper arc surface of the middle floating disc valve can be matched and contacted with the lower edge of the spacer gasket to prevent water or odor from being reflected; the separation frame and the separation frame gasket are of an integral or split structure.

Further, a separation frame bottom gasket is embedded in the inner wall of the separation frame bottom, the separation frame bottom gasket is an annular gasket with a certain thickness, and the upper arc surface of the lower floating disc valve can be in matched contact with the lower edge of the separation frame bottom gasket to prevent water or odor from being reflected; the separation frame bottom and the separation frame bottom gasket are of an integrated or split structure.

Further, the bottom of casing is equipped with the recess, and a small amount of surplus water can remain, plays sealed effect, prevents to turn back the flavor.

Further, the outer surfaces of the bottoms of the upper floating disc valve and the middle floating disc valve are arc surfaces so as to form a tangent plane with the supporting part; the bottom of the lower floating disc valve is concave ring-shaped and is used for covering the groove to further prevent odor from leaking out.

Further, the upper surface, the lower surface and the upper surface of the upper floating disc valve, the middle floating disc valve and the lower floating disc valve are respectively provided with a contact surface which can contact with a gasket or a top cover and other parts.

Furthermore, a baffle plate is arranged in the shell for keeping the lower floating disc valve in a horizontal balance state.

Furthermore, the separation frame and the separation frame gasket form a conical surface, and the separation frame bottom gasket form a conical surface, so that the direct connection of the sewage collecting and discharging process is realized, and the sewage flow rate is improved.

Further, a top cover is arranged at the opening of the upper part of the shell.

Further, the upper floating disc valve, the middle floating disc valve and the lower floating disc valve are disc-shaped structural bodies with smooth surfaces and capable of floating in water, the upper surface and the bottom outer surface of the upper floating disc valve, the upper and the lower outer surfaces of the middle floating disc valve and the upper outer surface of the lower floating disc valve are all arc surfaces, and the lower surface of the lower floating disc valve is a plane provided with annular bulges, so that a tangent plane is formed with a supporting part.

The basic principle of the invention is three-stage throttling retardation and two-stage dilution, and the quantity of the dirty components entering the room is controlled. The dirty components in the air in the inner cavity of the sewer are diffused to the lower air chamber along with the convection of the air through the gap between the lower floating disc valve and the bearing structure surface of the lower floating disc valve; then, the gas is convected and passes through a gap between the separation frame bottom gasket and the middle floating disc valve to be diffused to the middle air chamber; and finally, the gas is diffused into the room along with convection and passing through a gap between the spacer gasket and the floating disc valve. Technically, the gap can be controlled to be in the micron level, and the number of gas exchange caused by convection is small. When the convection exchange between the gas in the sewer and the indoor gas reaches a certain balance, the harmful components in the gas in unit volume are lower than the middle air chamber, the middle air chamber is lower than the lower air chamber, and the lower air chamber is lower than the inner cavity of the sewer. Thus, the harmful gas component entering the room is further reduced under the condition of the same gas exchange amount.

The invention uses the residual water ring to block, the secondary throttling is blocked, the secondary humidity is controlled, and the evaporation of the residual water ring is limited. After the water discharge is stopped, the residual water ring around the floating disc valve gradually disappears along with the evaporation of the water into the room. Under the condition that the sewage ring around the upper floating disc valve exists, the middle air chamber and the lower air chamber are in a water saturation state, and the residual water ring around the middle floating disc valve and the lower floating disc valve is kept unchanged. After the residual water ring around the upper floating disc valve disappears, the air exchange phenomenon occurs between the middle air chamber and the indoor space. With this, the humidity of the middle air chamber decreases and the sewage ring around the middle float dish valve starts to decrease. After the residual water ring around the middle floating disc valve disappears, the air exchange phenomenon occurs between the lower air chamber and the middle air chamber. With this, the humidity of the lower air chamber decreases and the sewage ring around the lower butterfly valve starts to decrease. In the technology, the convection gap can be controlled at the micron level, so that the exchange between indoor air and the gas of the middle air chamber and the exchange between the gas of the middle air chamber and the gas of the lower air chamber are limited, the number of gas exchange caused by convection is small, and the water loss of the lower air chamber is small. When the convective exchange between the lower chamber and the indoor gas reaches a certain equilibrium, the lower chamber humidity is higher than the middle chamber humidity, which is higher than the indoor temperature. The two gaps are throttled, the lower air chamber is close to a water saturation state, residual water around the lower floating disc valve is difficult to evaporate, the water loss speed of the lower air chamber is very low, and the progress of the disappearance of the sewage ring around the lower floating disc valve is slow. Therefore, the possibility that the air pollution components, plant diseases and insect pests and the like in the inner cavity of the sewer enter the floor drain air chamber can be eliminated for a long time.

The invention can form a secondary retardation, prevent particles from entering the room, prevent sewage from entering the room or prevent sewage from entering the room. When sewage is reversed, sewage flows in through the sewage diversion space at the bottom, jacks up the lower floating disc valve and flows in the space of the lower air chamber; the sewage continuously gushes up to lift the lower floating disc valve floating on the water surface, so that the lower floating disc valve is attached to the bottom gasket of the separation frame. The higher the sewage surface is, the tighter the lower floating disc valve is attached to the bottom gasket of the separation frame; the bigger the sewage back pressure is, the tighter the lower floating disc valve is attached to the bottom gasket of the separation frame. If the gap between the lower floating disc valve and the separation frame bottom gasket is eliminated, sewage is blocked in the lower air chamber. If there is a small gap between the lower float disc valve and the spacer bed gasket, moisture and particles smaller than this gap enter the middle plenum. The space sewage in the middle air chamber is increased, and the middle floating butterfly valve is floated until the middle floating butterfly valve is attached to and pressed against the gasket of the separation frame. The sewage entering the middle air chamber has small particles, the possibility of eliminating the gap between the middle floating disc valve and the separating frame gasket is higher than the possibility of eliminating the gap between the lower floating disc valve and the separating frame bottom gasket, and the reliability of preventing the floating sealing floor drain from water reflection of the floating disc valve is improved.

The water body entering the sewage drainage channel of the floor drain is a functional water body of the floating disc valve floating seal floor drain; the gravity of the floating disc valve is a functional driving force. The gravity and the buoyancy act together to determine the upper and lower positions of the upper floating disc valve in the upper water collecting space, the upper and lower positions of the middle floating disc valve in the middle air chamber space and the upper and lower positions of the lower floating disc valve in the lower air chamber space. When no sewage exists in the floating seal floor drain of the floating disc valve, the upper floating disc valve is attached to the spacer frame gasket under the action of gravity, so that an upper-level drainage floating disc spacer structure is formed; the middle floating disc valve is attached to the bottom gasket of the separation frame to form a middle-level water discharge floating disc separation structure; the lower floating disc valve is attached to the bearing structure surface of the lower floating disc valve to form a lower floating disc separation structure. When sewage leaks, the sewage flows into the upper water collecting space through the top cover hole and is collected around the upper floating disc valve; as the water quantity increases, the gap of the upper-stage water discharge floating disc separation structure disappears, the indoor space is separated from the middle air chamber, and the upper floating disc valve starts to bear buoyancy; when the buoyancy born by the floating disc valve is greater than the gravity of the floating disc valve, the floating disc valve floats, and sewage flows into the middle air chamber; as the water quantity increases, the gap of the intermediate-stage water discharge floating disc separation structure disappears, the lower air chamber is separated from the middle air chamber, and the intermediate floating disc valve starts to bear buoyancy; when the buoyancy born by the middle floating disc valve is greater than the gravity of the middle floating disc valve, the middle floating disc valve floats, and sewage flows into the lower air chamber; as the water quantity increases, gaps of the separation structure of the lower-stage water discharge floating disc disappear, the lower air chamber is separated from the inner cavity space of the sewer, and the lower floating disc valve starts to bear buoyancy; when the buoyancy born by the lower floating disc valve is greater than the gravity of the lower floating disc valve, the lower floating disc valve floats, and sewage flows through the sewage diversion space at the bottom and enters the sewer. When the sewage stops leaking, the water body around the upper floating disc valve is gradually reduced, when the buoyancy born by the upper floating disc valve is smaller than the gravity of the upper floating disc valve, the upper-stage water-draining floating disc separation structure is restored, and the retained residual water keeps the indoor space isolated from the middle air chamber; then, the water body around the middle floating disc valve gradually shrinks, when the buoyancy born by the middle floating disc valve is smaller than the gravity of the middle floating disc valve, the middle-stage water-draining floating disc separation structure is restored, and the retained residual water keeps the lower air chamber separated from the middle air chamber; then, the water body around the lower floating disc valve is gradually reduced, when the buoyancy born by the lower floating disc valve is smaller than the gravity of the lower floating disc valve, the lower floating disc separation structure is restored, and the retained residual water keeps the inner cavity space of the sewer isolated from the lower air chamber. After the sewage stops leaking, the water around the floating disc valve evaporates indoors, when the water around the floating disc valve disappears, the gap of the upper-level water-draining floating disc separation structure appears, the indoor space and the middle air chamber start to exchange gas, the water in the air of the middle air chamber runs off, and the water around the floating disc valve starts to evaporate; after the water body around the middle floating disc valve disappears, gaps of the middle-stage water discharge floating disc separation structure appear, the lower air chamber and the middle air chamber begin to exchange air, water in the air of the lower air chamber is lost, and the water body around the lower floating disc valve begins to evaporate; when the water body around the lower floating disc valve disappears, the gap of the lower floating disc separation structure appears.

The invention has the advantages and beneficial effects that:

the invention adopts a floating disc separation structure, and the lower surface of the floating disc valve is attached to the gasket of the separation frame, the gasket of the separation frame bottom and the bearing structure surface of the lower-stage floating disc valve to realize the separation of the upper space and the lower space, thereby achieving the purposes of insect prevention and deodorization; the upper surface of the floating disc valve is attached to the separating frame gasket and the separating frame bottom gasket, so that the separation of an upper space and a lower space is realized, and the purpose of preventing sewage from flowing back is achieved; the separation frame and the separation frame gasket form a conical surface, so that the sewage collection and drainage process is directly conducted, and the separation frame bottom gasket form a conical surface, so that the sewage drainage process is directly conducted; triple isolation is formed through the upper, middle and lower three-layer floating butterfly valve structure, so that the quantity of peculiar smell components in a sewer penetrating into a room is controlled, and insect attack is prevented from penetrating into the room; through the upper, middle and lower triple partitions, the odor components in the sewer are prevented from invading the room by insect pests.

The floating disc valve floating seal floor drain provided by the invention innovates the floor drain technology, and realizes the performance progress of the floor drain based on a new structure and a new principle by applying a new design scheme.

1. Preventing or controlling the invasion of sewage polluted air. In the blocking state, the indoor space is not communicated with the inner cavity of the sewer, so that dirty air in the inner cavity of the sewer is prevented from invading the indoor space; in the isolated state, the indoor space is indirectly communicated with the sewer space, and the quantity of the sewage air pollutant components invading the indoor space is limited. In theory, the odor components diffused into the room by the dry floor drain are one hundred percent of the odor guiding components diffused into the room by the existing dry self-sealing floor drain.

2. Prevent the invasion of sewer diseases and insect pests and viruses, and eliminate the harm of the sewer diseases and insect pests and viruses to human health.

3. Self-cleaning, anti-blocking and no need of filter screen. The adoption of the water flow guide structure is beneficial to taking away particles and filiform substances by water flow, and the sediment is removed by flushing the residual water tank by means of the downward effusion flow, so that the smooth pollution discharge is ensured.

4. After one-time drainage, the four-prevention floor drain keeps the indoor and the inner cavity of the sewer to be separated for a long time. In theory, after one drainage, the time for keeping the indoor space and the sewer space in a separated state can reach tens of days. The existing floor drain cannot be compared with the existing floor drain. For the house, the partition state of the indoor space and the inner cavity of the sewer can be maintained, and the trouble and harm from the inner cavity of the sewer are eliminated.

5. Prevent sewage from reversely flowing into the room. The possibility that sewage in the sewer flows into the room in a large amount can be eliminated. Compared with the existing floor drain single valve plate water reflection prevention, the floating disc valve floating seal floor drain is more reliable.

6. The invention has the advantages of less internal components, easy assembly, reliable work and convenient and simple maintenance and cleaning.

Drawings

Fig. 1 shows a main structure of the floor drain of the present invention.

Fig. 2 shows a second floor drain body structure according to the present invention.

Fig. 3 shows a main structure of the floor drain according to the present invention.

FIG. 4 is a schematic view of the structure of the floating disc valve of the present invention.

FIG. 5 is a schematic diagram of a middle float disc valve according to the present invention.

FIG. 6 is a schematic view of the structure of the floating disc valve of the present invention.

Fig. 7 is a schematic structural view of a spacer according to the present invention.

Fig. 8 is a schematic structural view of a spacer according to the present invention.

Fig. 9 is a schematic view of the structure of the partition frame bottom of the present invention.

Fig. 10 is a schematic view of the construction of the separator foot gasket of the present invention.

Fig. 11 is a schematic structural view of a spacer gasket of the present invention.

Fig. 12 is a schematic structural view of the top cover of the present invention.

The device comprises a 1-shell, a 2-top cover, a 3-separation frame, a 4-floating disc valve, a 5-separation frame gasket, a 6-separation frame sealing ring, a 7-separation frame bottom sealing ring, an 8-middle floating disc valve, a 9-separation frame bottom, a 10-separation frame bottom gasket, an 11-lower floating disc valve and a 12-baffle.

Detailed Description

The invention is further illustrated and described below by means of specific embodiments in conjunction with the accompanying drawings.

Example 1:

the floor drain comprises a shell 1 with an upper opening and a lower opening and a hollow interior, wherein an upper-stage floating disc separation structure and a lower-stage floating disc separation structure are arranged in the shell 1, the upper-stage floating disc separation structure comprises an upper floating disc valve 4, the upper floating disc valve 4 can be supported, the lower-stage floating disc separation structure comprises a lower floating disc valve 11, and the lower floating disc valve 11 can be supported at the bottom of the shell 1; the water flow enters from the water inlet at the upper part of the shell 1, impacts the upper floating disc valve 4, floats up through the upper floating disc separation structure, and then continuously impacts the lower floating disc valve 11, the lower floating disc valve 11 floats up, and the water flow flows out from the water outlet at the bottom of the shell 1 through the lower floating disc separation structure.

The inside of the shell 1 is also provided with a separation frame 3 for supporting the floating disc valve 4, the floating disc valve 4 is in tangential contact with a separation frame gasket 5, and the separation frame 3 is tightly contacted and fixed with the shell 1 by arranging a separation frame sealing ring 6.

The housing 1 and the partition frame 3 can be designed as an integral or split structure as long as the above-described effect of supporting the butterfly valve can be produced.

The inner wall of the separation frame 3 is embedded with a separation frame gasket 5, the separation frame gasket 5 is an annular gasket with a certain thickness, and the upper arc surface of the lower floating disc valve 11 can be matched and contacted with the lower edge of the separation frame gasket 5 to prevent water or odor from being reflected; the separation frame 3 and the separation frame gasket 5 are of an integral or split structure.

The bottom of the shell 1 is provided with a groove, a small amount of residual water can be reserved, the sealing effect is achieved, and the odor is prevented.

The upper parts of the upper floating disc valve 4 and the lower floating disc valve 11 are arc surfaces so as to form a tangent plane with the supporting part; the lower part of the lower floating disc valve 11 is concave and annular and is used for covering the groove to further prevent odor from leaking out.

The inside of the shell 1 is also provided with a baffle 12 for keeping the lower floating disc valve 11 in a horizontal balance state.

The separation frame 3 and the separation frame gasket 5 form a conical surface, so that the direct connection of the sewage collection and drainage process is realized, and the sewage flow rate is improved.

A top cover is arranged at the upper opening of the shell 1.

Example 2:

as shown in fig. 1-3, a floating disc valve floating seal floor drain comprises an outer shell 1, wherein a hollow interior formed by the shell 1 is provided with a three-stage floating valve structure: an upper stage floating disc valve, a middle stage floating disc valve and a lower stage floating disc valve; the upper-stage floating disc valve comprises an upper floating disc valve 4 arranged at the upper part, and the upper floating disc valve 4 can be supported; the middle-stage floating disc valve comprises a middle floating disc valve 8 arranged in the middle, and the middle floating disc valve 8 can be supported; the lower-stage floating disc valve comprises a lower floating disc valve 11 arranged at the lower part, and the lower floating disc valve 11 can be supported; the bottom of the shell 1 is also provided with a water outlet; when water flows in from the upper end of the shell and passes through the first-stage floating valve, the water impacts the upper floating disc valve 4 to enable the upper floating disc valve to float, so that the water smoothly passes through the upper floating valve, the water continuously impacts the middle floating disc valve, the middle floating disc valve 8 floats, the water continuously passes through the middle floating disc valve, and the water finally impacts the lower floating disc valve 11, so that the water is smoothly discharged through the lower floating disc valve and the water outlet; two air chambers are formed among the upper-stage floating disc valve, the middle-stage floating disc valve and the lower-stage floating disc valve, so that an isolation effect is achieved.

The inside of the shell 1 is also provided with a separation frame 3 (shown in figures 7 and 8) for supporting the floating disc valve 4, the floating disc valve 4 is in tangential contact with a separation frame gasket 5 (shown in figure 11), and the separation frame 3 is tightly contacted and fixed with the shell 1 by arranging a separation frame sealing ring 6.

The lower part of the separation frame 3 in the shell 1 is also provided with a separation frame bottom 9 (shown in figure 9), the separation frame bottom 9 is used for supporting the middle floating disc valve 8 and is used for supporting the lower floating butterfly valve 11, the middle floating disc valve 8 is in tangential contact with a separation frame bottom gasket 10 (shown in figure 10), and the separation frame bottom 9 is tightly contacted and fixed with the shell 1 through the separation frame bottom sealing ring 7.

The housing 1, the partition frame 3 and the partition frame bottom 9 can be designed as an integral or split structure as long as the above-mentioned effect of supporting the ball valve can be produced.

Furthermore, a spacer gasket 5 is embedded in the inner wall of the spacer 3, the spacer gasket is an annular gasket with a certain thickness, and the upper arc surface of the middle floating disc valve 8 can be matched and contacted with the lower edge of the spacer gasket to prevent water or odor from being reflected; the separation frame and the separation frame gasket are of an integral or split structure.

Further, a spacer frame bottom gasket 10 is embedded in the inner wall of the spacer frame bottom 9, the spacer frame bottom gasket is an annular gasket with a certain thickness, and the upper arc surface of the lower floating disc valve 11 can be in matched contact with the lower edge of the spacer frame bottom gasket to prevent water or odor from being reflected; the separation frame bottom and the separation frame bottom gasket are of an integrated or split structure.

The outer surfaces of the bottoms of the upper floating disc valve 4 (shown in figure 4) and the middle floating disc valve 8 (shown in figure 5) are arc surfaces so as to form a tangent plane with the supporting part; the bottom of the lower floating disc valve 11 (shown in fig. 6) is in a concave ring shape, and covers the groove to prevent the odor from leaking out.

The inside of the shell 1 is also provided with a baffle 12 for keeping the lower butterfly valve 11 in a stable state.

The separation frame 3 and the separation frame gasket 5 form a conical surface, the separation frame bottom 9 and the separation frame bottom gasket 10 form a conical surface, the sewage collecting and discharging process is directly conducted, and the sewage flow rate is improved.

A top cover is arranged at the upper opening of the shell 1 (as shown in fig. 12).

Example 3:

a floating disc valve floating seal floor drain, wherein the shell 1 is of a barrel-shaped three-stage ladder structure (as shown in figure 1), the upper end is provided with a top cover, the middle part is provided with a separation frame, the lower end is provided with a water outlet, and the water outlet is of a cylindrical structure; the top cover is arranged at the upper part of the floor drain and is covered on the upper-stage floating disc valve; the separation frame 3 is arranged in the floor drain, a separation frame gasket is arranged in the separation frame, and the floating disc valve 4 is covered on the separation frame gasket 5; the partition frame bottom 9 is arranged in the floor drain and is positioned below the partition frame 3, the partition frame bottom gasket 10 is arranged in the middle of the lower part of the partition frame bottom 9, and the middle floating disc valve 8 is arranged above the partition frame bottom gasket 10; the partition frame bottom sealing ring is arranged in the floor drain and is positioned above the top surface of the partition frame bottom; the edge of the upper part of the water outlet is provided with a convex edge, and the lower floating butterfly valve 11 is covered on the upper part of the convex edge.

The inner wall of the upper part of the shell 1 is provided with a compression block or threads for fixing the separation frame 3; the shell 1 and the separation frame are connected into a whole through a compression block or threads, and the sealing ring 6 of the separation frame is compressed.

The concave groove (residual water tank) at the lower part of the shell 1 and the convex edge of the water outlet form a four-prevention (water-reflecting, air-reflecting, insect-preventing and anti-blocking) floor drain lower part structure with the lower-stage floating butterfly valve.

The convex edge at the lower part of the shell 1 is smoothly transited to the water outlet, and a residual water tank is formed at the bottom of the shell.

The upper part of the separation frame 3 is provided with a compression block or a thread; the lower part is provided with threads, so that the effect of fixing other parts is achieved.

As shown in fig. 11, the middle part of the spacer gasket 5 is provided with a round hole, the upper surface is provided with a conical surface, and the junction part of the round hole and the conical surface forms an upper sealing band of the spacer gasket; the lower surface of the spacer gasket 5 is a curved surface and is a lower sealing surface of the spacer gasket; the other surfaces are combined surfaces with the separation frame.

As shown in fig. 10, the middle part of the spacer bottom gasket 10 is a round hole, the upper surface is a conical surface, and the junction part of the round hole and the conical surface forms a sealing band on the spacer bottom gasket; the lower surface is a curved surface and is a lower sealing surface of a separation frame bottom gasket; the other surfaces are combined surfaces with the bottom of the separation frame.

The separator gasket 5 is integrally connected with the separator 3, and the upper surface of the separator 3 is in smooth transition with the upper surface of the separator gasket 5.

The separation frame and the separation bottom are connected into a whole through threads, and the sealing ring of the separation frame bottom is pressed.

The separation frame bottom gasket 10 is connected with the separation frame bottom 9 into a whole, and the upper surface of the inner bottom of the separation frame bottom 9 is in smooth transition with the upper surface of the separation frame bottom gasket.

The upper floating disc valve 4, the middle floating disc valve 8 and the lower floating disc valve 11 are structures which can float in the water flow discharged from the floor drain.

The upper floating disc valve 4, the middle floating disc valve 8 and the lower floating disc valve 11 are divided into a hollow structure and a solid structure; and can be divided into a primary forming structure and a combined forming structure.

The upper part of the floating disc valve 4 is a sphere-segment structure (the sphere-segment structure is a spherical cambered surface structure body), the lower part is a sphere-segment structure, and the middle part is in smooth transition.

The upper part and the lower part of the middle floating disc valve 8 are of the same sphere structure, and the middle part is in smooth transition.

The lower part of the lower floating disc valve 11 is of a planar structure, and the outer side of the lower floating disc valve is provided with a convex edge; the upper part is of a sphere structure, and the middle part is in smooth transition.

The top cover (as shown in fig. 12) is a flat plate-like structure through which water can pass, and is generally selected to be porous and flat.

The shell 1, the separation frame 3, the separation frame sealing ring 6 and the separation frame gasket 5 form a four-prevention floor drain upper part separation structure; the inner surface of the upper part of the shell 1, the upper surface of the separation frame 3 and the upper surface of the separation frame gasket 5 form a four-prevention floor drain upper water collecting surface together; the round hole in the middle of the spacer gasket 5 forms a four-prevention drain outlet at the upper part of the floor drain.

The upper water collecting surface of the four-prevention floor drain and the lower surface of the top cover are enclosed into a four-prevention floor drain upper chamber outside the spherical surface of the lower part of the floating disc valve 4 in the round hole in the middle of the spacer gasket.

The floating disc valve 4 is positioned in the upper chamber, and the lower spherical surface of the floating disc valve is contacted with the upper sealing belt of the spacer gasket under the action of gravity to form the upper isolation layer of the floor drain.

The separation frame 3, the separation frame sealing ring 6, the separation frame bottom 9, the separation frame bottom sealing ring 7 and the separation frame bottom gasket 10 form a four-prevention floor drain middle separation structure; the inner surface of the separation frame bottom 9 and the upper surface of the separation frame bottom gasket 10 form a four-prevention floor drain middle water collecting surface together; the round hole in the middle of the separation frame bottom gasket 10 forms a four-prevention floor drain middle water discharge port.

The middle floating disc valve 8 is positioned in the partition frame bottom 9, and the lower spherical surface of the middle floating disc valve contacts with the upper sealing belt of the gasket of the partition frame bottom under the action of gravity to form the middle layer isolation of the floating disc valve floating seal floor drain.

The lower floating butterfly valve 11 is positioned at the lower step in the shell 1, and the lower plane of the lower floating butterfly valve is contacted with the top of the convex edge at the lower part of the shell 1 under the action of gravity, so that the lower layer isolation of the floor drain is formed.

The floor drain middle air chamber is formed by enclosing a four-prevention floor drain middle water collecting surface, a partition frame 3 lower surface, a partition frame gasket 5 lower curved surface, a partition frame gasket 5 middle round hole surface, an upper float valve bottom spherical gap surface and a middle float disc valve surface except a middle float disc valve lower spherical gap surface in a partition frame bottom gasket 5 middle round hole.

The middle part and part of the lower surface of the inner side of the shell 1, the surface of the lower floating disc valve 11 except the lower spherical gap surface of the lower floating disc valve 11 in the step water outlet of the lower part of the shell 1, the part of the lower surface of the separation frame 3, the outer surface of the separation frame bottom 9, the lower curved surface of the separation frame bottom gasket 10, the middle round hole surface of the separation frame bottom gasket 5 and the spherical gap surface of the bottom of the middle floating valve in the middle round hole surface of the separation frame bottom gasket 10 form a four-prevention floor drain lower air chamber.

The upper surfaces of the separation frame gasket 5 and the separation frame bottom gasket 10 are both in conical surface structures, so that sewage and dirt do not have deposition conditions; the convex edge at the lower part of the shell 1 is smooth and low, and sediment discharged in the previous time is taken away by means of sewage washing, so that the self-cleaning capacity is realized.

The three floating disc valves of the movable part of the floor drain keep or change the positions under the action of gravity and buoyancy, and the floor drain is reliable in work and simple in maintenance.

For dry floor drains, three layers of insulation are formed between the indoor air and the sewer cavity air. The peculiar smell component in the sewer is diffused to the lower air chamber through a gap between the lower floating disc valve and the convex edge of the lower step of the shell in an air exchange mode; the peculiar smell component in the air of the lower air chamber is diffused to the middle air chamber through a gap between the middle floating disc valve and the separation frame bottom gasket in a gas exchange mode; the peculiar smell component in the middle air chamber is diffused to the upper chamber through the gap between the upper float valve and the separator gasket in a gas exchange mode and enters the chamber. Triple isolation prevents insect pest from entering the room and controls the diffusion of peculiar smell components into the room.

When sewage is discharged down on the floor, the sewage flows into the floor drain through the top cover hole, and is collected in the upper chamber, and when the buoyancy of the sewage is greater than the weight of the floating butterfly valve, the floating butterfly valve floats; sewage in the upper chamber flows into the middle air chamber through the upper drain. Along with the collection of the sewage in the middle air chamber, when the buoyancy provided by the sewage is greater than the weight of the middle floating butterfly valve, the middle floating butterfly valve floats; sewage in the middle air chamber flows into the lower air chamber through the middle water drain port. Along with the collection of the sewage in the lower air chamber, when the buoyancy provided by the sewage is greater than the weight of the lower floating disc valve, the lower floating disc valve floats; sewage in the lower air chamber is discharged into a sewer through a water outlet.

When the sewage on the floor is exhausted, the lower floating disc valve starts to descend along with the reduction of the sewage entering the upper cavity of the floor drain through the water permeable top cover, and when the sewage in the upper cavity cannot provide enough buoyancy, the spherical gap surface of the lower part of the upper floating disc valve is contacted with the upper sealing belt of the spacer gasket; the middle floating disc valve starts to descend along with the reduction of sewage flowing into the middle air chamber of the floor drain through the upper water drain, and when the sewage in the middle air chamber can not provide enough buoyancy, the spherical surface of the lower part of the middle floating disc valve is contacted with the sealing belt on the gasket of the separation frame bottom; the lower butterfly valve begins to descend as the flow of sewage into the lower chamber of the floor drain through the middle drain port decreases, and the lower plane of the lower butterfly valve contacts the top of the ledge of the lower step of the housing when the sewage in the lower chamber fails to provide sufficient buoyancy.

The water flow flowing in the floating disc valve floating seal floor drain is a functional structure body for deodorization, insect prevention and blocking prevention of the floor drain. In the process of sewage flowing through the floor drain, the indoor air and the inner cavity of the sewer are in a separated state.

When the drain is finished, a small amount of sewage is left at the bottom of the upper chamber, the bottom of the middle air chamber and the bottom of the lower air chamber, and a residual water ring is formed around the upper floating disc valve, the middle floating disc valve and the lower floating disc valve respectively. They are the functional structure body of the floor drain for deodorization, insect prevention and anti-blocking. Thus, three layers of partitions are formed between the indoor air and the sewer inner cavity. Triple partition prevents insect pest and odor components from invading the room. The blocking state duration time is the sum of the evaporation disappearance time of the residual water ring around the upper floating disc valve, the evaporation disappearance time of the residual water ring around the middle floating disc valve after the evaporation disappearance of the residual water ring around the upper floating disc valve, and the evaporation disappearance time of the residual water ring around the lower floating disc valve after the evaporation disappearance of the residual water ring around the middle floating disc valve. The middle air chamber can enable the lower air chamber to keep higher humidity, so that the evaporation of water in the residual water ring around the lower floating disc valve is prevented, and the existence of lower partition is facilitated.

The upper spherical surface of the lower floating disc valve contacts with the lower sealing surface of the separation frame bottom gasket under the action of buoyancy to form anti-reverse underwater isolation of the floating disc valve floating seal floor drain; the upper sphere surface of the middle floating disc valve contacts with the lower sealing surface of the spacer gasket under the action of buoyancy, so that the anti-backflow upper isolation of the floating disc valve floating seal floor drain is formed.

When the floor drain has the phenomenon of water reflection, sewage reversely flows into the air chamber at the lower part of the floor drain through the water outlet, and is collected in the air chamber at the lower part, and the lower floating disc valve floats; when the upper spherical gap surface of the lower floating disc valve is contacted with the lower sealing surface of the separation frame bottom gasket, the anti-reflection underwater layer is formed in an isolated manner. If the anti-reverse underwater layer is not tightly isolated and sealed, so that sewage enters the middle air chamber, the middle floating butterfly valve floats under the action of the sewage; when the upper sphere gap surface of the middle floating disc valve is contacted with the lower sealing surface of the spacer gasket, the anti-backflow upper layer is isolated. Double isolation prevents sewage in the sewer from reversely rushing into the room through the floor drain.

Example 4:

this embodiment has upper portion drainage catchment structure, lower part drainage water conservancy diversion structure, and the tertiary dish separation structure that floats in middle part: an upper-stage floating disc separation structure, a middle-stage floating disc separation structure and a lower-stage floating disc separation structure. The floating disc valve floating floor drain comprises a shell 1, a top cover 2, a separation frame 3, an upper floating disc valve 4, a separation frame gasket 5, a separation frame sealing ring 6, a separation frame bottom sealing ring 7, a middle floating disc valve 8, a separation frame bottom 9, a separation frame bottom gasket 10 and a lower floating disc valve 11; the shell 1, the top cover 2, the separation frame 3, the separation frame gasket 5, the separation frame sealing ring 6, the separation frame bottom 9, the separation frame bottom gasket 10 and the separation frame bottom sealing ring 7 are combined to form a fixed part of the floating disc valve floating seal floor drain, and a sewage drainage space is formed inside the floating disc valve floating seal floor drain and is divided into: an upper water collecting space, a middle air chamber space, a lower air chamber space and a bottom sewage diversion space. The upper floating disc valve 4, the middle floating disc valve 8 and the lower floating disc valve 11 are movable parts of the floating sealing floor drain of the floating disc valve, the upper floating disc valve 4 is positioned in the upper water collecting space, the middle floating disc valve 8 is positioned in the middle air chamber space, and the lower floating disc valve 11 is positioned in the lower air chamber space. The space inside the sewage draining space is communicated with the indoor space and the sewer inner cavity space outside the space occupied by the upper floating disc valve 4, the middle floating disc valve 8 and the lower floating disc valve 11, and is an indoor sewage draining channel, a sewer sewage reverse flushing channel and a channel for carrying out gas exchange with a sewer. The shell 1 is combined with the top cover to form an upper drainage and water collection structure; the upper-stage floating disc valve bearing structure and the middle-stage floating disc valve bearing structure are formed by combining the upper-stage floating disc valve bearing structure, the partition frame 3, the partition frame gasket 5, the partition frame sealing ring 6, the partition frame bottom 9, the partition frame bottom gasket 10 and the partition frame bottom sealing ring 7. The upper-stage floating disc separation structure is formed by a floating disc valve and an upper-stage floating disc valve bearing structure which are attached to the separation frame sealing ring 6, and comprises an upper-stage water draining floating disc separation structure formed by an upper floating disc valve and an upper-stage floating disc valve bearing structure, and an upper-stage water reversing floating disc separation structure formed by a middle floating disc valve and an upper-stage floating disc valve bearing structure; the floating disc valve and the middle floating disc valve supporting structure which are attached to the separation frame bottom gasket 10 form a middle floating disc separation structure, and the middle floating disc separation structure comprises a middle drain floating disc separation structure formed by the middle floating disc valve and the middle floating disc valve supporting structure and a middle reverse water floating disc separation structure formed by the lower floating disc valve and the middle floating disc valve supporting structure; the lower-stage floating disc valve bearing structure surface and the lower-stage floating disc valve form a lower-stage floating disc separation structure. The upper-stage floating disc separation structure and the middle-stage floating disc separation structure enclose a middle air chamber, and the middle-stage floating disc separation structure and the lower-stage floating disc separation structure enclose a lower air chamber. The upper-stage water draining floating disc separating structure, the middle-stage water draining floating disc separating structure and the lower-stage floating disc separating structure form triple separation between the indoor space and the inner cavity space of the sewer. The middle air chamber and the lower air chamber form double blocking of exchange between indoor air and air in the inner cavity of the sewer.

The upper butterfly valve 4, the middle butterfly valve 8 and the lower butterfly valve 11 are butterfly structures that can float in water. The outer surface of the bottom of the upper floating disc valve 4, the outer surfaces of the upper part and the lower part of the middle floating disc valve 8 and the outer surface of the upper part of the lower floating disc valve 11 adopt arc surfaces (spherical segment surfaces) which are fit with the floating disc valve bearing surfaces of the separation frame gasket 5 or the separation frame bottom gasket 10; the bottom of the lower floating disc valve 11 is concave annular, and the concave plane is an attaching surface matched with the bearing structure surface of the lower floating disc valve.

The spacer gasket 5 is a hollow structure body, the upper surface adopts a conical surface to support the upper floating disc valve, the lower surface adopts a cambered surface to support the middle floating disc valve; the separation frame bottom gasket 10 is a hollow structure body, the upper surface adopts a conical surface to support the middle floating disc valve, and the lower surface adopts a cambered surface to support the lower floating disc valve.

The shell 1 is a hollow structure, the top of the shell is provided with a top cover placing opening, the inner wall of the shell is provided with a top cover placing surface, a separation frame connecting surface and a baffle 12, the bottom of the shell is provided with a water outlet for placing the top cover 2 and the separation frame 3, accommodating the upper floating disc valve 4, the separation frame gasket 5, the separation frame sealing ring 6, the separation frame bottom sealing ring 7, the middle floating disc valve 8 and the separation frame bottom 9, separating the frame bottom gasket 10 and the lower floating disc valve 11. The lower-stage floating disc valve bearing structure surface is provided with a bulge to form a groove for reserving a small amount of residual water, so that the sealing effect is achieved, and the odor is prevented. The baffle 12 is used to maintain the lateral position of the lower butterfly valve 11.

The inside of the shell 1 is provided with a separation frame 3 for supporting the floating disc valve 4 and pressing the middle floating disc valve 8, the separation frame 3 is tightly contacted and fixed with the shell 1 by arranging a separation frame sealing ring 6, and the separation frame gasket 5 provides supporting force for the floating disc valve 4 and applies pressure to the middle floating disc valve 8.

The lower part of the separation frame 3 is provided with a separation frame bottom 9 in the shell 1, the separation frame bottom 9 is used for supporting the middle floating disc valve 8 and pressing the lower floating disc valve 11, the separation frame bottom 9 is tightly contacted and fixed with the shell 1 through the separation frame bottom sealing ring 7, and the separation frame bottom gasket 10 is used for providing supporting force for the middle floating disc valve 8 and applying pressure to the lower floating disc valve 11.

The housing 1, the separator 3, the separator gasket 5, the separator bottom gasket 10, and the separator bottom 9 may be combined according to functions, and may be integrated or separated, so long as the above-described supporting effect can be generated.

Embodiments 1-4 provide a float valve floor drain capable of realizing the functions of deodorization, insect prevention, blocking prevention and anti-fouling water backflow of the floor drain, ensuring that the floor drain is unobstructed, and being easy to maintain.

Claims

1. The floating floor drain is characterized by comprising a shell (1) with an upper opening and a lower opening and a hollow interior, wherein an upper-stage floating disc separation structure and a lower-stage floating disc separation structure are arranged in the shell (1), the upper-stage floating disc separation structure comprises an upper floating disc valve (4), the upper floating disc valve (4) can be supported, the lower-stage floating disc separation structure comprises a lower floating disc valve (11), and the lower floating disc valve (11) can be supported at the bottom of the shell (1); the water flow enters from a water inlet at the upper part of the shell (1), impacts the upper floating disc valve (4), floats on the upper floating disc valve (4), continuously impacts the lower floating disc valve (11) after passing through the upper floating disc separation structure, floats on the lower floating disc valve (11), and flows out from a water outlet at the bottom of the shell (1) through the lower floating disc separation structure; a separation frame (3) is further arranged in the shell (1) and used for supporting the floating disc valve (4), the floating disc valve (4) is in tangential contact with the separation frame (3) through a separation frame gasket (5), and the separation frame (3) is tightly contacted and fixed with the shell (1) through a separation frame sealing ring (6); the shell (1) and the separation frame (3) can be designed as an integral or split structure, so long as the effect of supporting the butterfly valve can be generated; the inner wall of the separation frame (3) is embedded with a separation frame gasket (5), the separation frame gasket (5) is an annular gasket with a certain thickness, and the upper arc surface of the lower floating disc valve (11) can be matched and contacted with the lower edge of the separation frame gasket (5) to prevent water or odor from being reflected.

2. A floating disc valve floating seal floor drain according to claim 1, wherein a groove is arranged at the bottom of the shell (1), and a small amount of residual water can be reserved for sealing and preventing odor from being reversed.

3. A floating floor drain with a butterfly valve according to claim 1, characterized in that a baffle (12) is also provided inside the housing (1) for keeping the lower butterfly valve (11) in a horizontal equilibrium state preventing tilting thereof.

4. The floating floor drain of claim 1, wherein the upper and lower floating butterfly valves (4, 11) are dish-shaped structures capable of floating in water.