CN209989906U

CN209989906U - Floating butterfly valve seal

Info

Publication number: CN209989906U
Application number: CN201920792191.8U
Authority: CN
Inventors: 李宗洋; 朱希沄; 朱睿
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-05-29
Filing date: 2019-05-29
Publication date: 2020-01-24
Anticipated expiration: 2029-05-29

Abstract

The utility model provides a float dish valve floating seal floor drain has upper portion drainage water-collecting structure, and lower part sluicing water conservancy diversion structure, higher level float dish partition structure, middle-level float dish partition structure and subordinate float dish partition structure, including the casing, with it fixed connection's top cap, separate the shelf packing ring, separate shelf sealing washer, separate shelf bottom sealing washer, separate the shelf bottom, be located wherein the come-up dish valve, float the dish valve in, float the dish valve down. Gravity and buoyancy force cause the float disc valve to shift position. When water is not drained, the lower surfaces of the upper floating butterfly valve, the middle floating butterfly valve and the lower floating butterfly valve are attached to the supporting part to form triple isolation or partition and double air chambers, so that isolation or partition of upper and lower spaces is realized, and good insect prevention and deodorization effects are achieved; when water is drained, the upper floating butterfly valve, the middle floating butterfly valve and the lower floating butterfly valve are not attached to the supporting part, so that a sewage and sewage channel is formed; when water is reversed, the upper surfaces of the middle floating butterfly valve and the lower floating butterfly valve are attached to the supporting part to form a double-layer reverse water prevention barrier to prevent sewage from flowing into a room.

Description

Floating butterfly valve seal

Technical Field

The utility model relates to a novel floor drain specifically is a superficial butterfly valve floating seal floor drain of deodorant, protection against insects, antifouling water is palirrhea, prevent stifled, unobstructed, easy maintenance.

Background

The floor drain is an important component for connecting the indoor and the sewer and is embedded on the ground. The sewage drainage device is not only an outlet for draining sewage on the floor of the kitchen and the toilet to the outside so as to keep the floor of the kitchen and the toilet sanitary; and the sewage is also an inlet for the polluted air, pests and viruses of the sewer to invade indoors, and the problem that the indoor environment is influenced by the sewer is caused.

At present, floor drain technologies for preventing sewage from invading indoor by foul air and plant diseases and insect pests can be classified into two types, namely a water seal technology and a second self-sealing technology. Correspondingly, floor drains on the market are divided into two types, namely a water seal floor drain and a straight-through self-sealing floor drain.

The common structure of the water-sealed floor drain is that a water bay with a U-shaped cross section is formed in the floor drain, a sewage lower discharge opening is arranged in the middle of the floor drain, and a water-sealed lock is arranged above the sewage lower discharge opening. The water seal bell is a small hanging bowl which is reversely buckled. A straight-through channel between the inner cavity of sewer and indoor space is arranged between the lower edge of the water seal bell and the inner surface of the water seal floor drain. The basic principle of the water sealing technology is that partial sewage is intercepted in a water inlet, and the indoor space and the inner cavity space of a sewer are separated by utilizing the sewage to separate the relation between the indoor air and the air in the inner cavity of the sewer, so that the invasion of the polluted air, pests and viruses of the sewer into the room is prevented.

When sewage flows downwards, the trap of the floor drain intercepts part of the sewage flowing downwards to form a water seal belt. If the water level of the water seal belt reaches or exceeds the submergence height (the height from the plane of the bottom of the bay to the plane of the lower edge of the water seal bell), the lower edge of the water seal bell is submerged in the water seal belt. The floor drain main body is bonded with the floor into a whole, and the outer wall of the sewer is bonded with the floor. Under the condition that the water seal belt is immersed in the lower edge of the water seal bell, the floor drain main body, the water seal belt and the water seal bell are matched with each other, and the space in the compartment and the inner cavity of the sewer are separated to block the passage of the dirty air of the sewer from invading the indoor air through the floor drain. The water quantity in the water seal floor drain bay is different, the time for the water surface of the water seal zone to descend to the lower edge of the water seal buckle is different, and the short time is several hours, and the long time is several days.

Under the condition that the water seal zone can not submerge the lower edge of the water seal button or the water in the bay is not available, the inner cavity of the sewer is directly communicated with the indoor space. The dirty air in the sewer can directly invade the room through the floor drain, and various pests and viruses can be driven in the sewer for a long time, so that the body and mind health of people is directly harmed. This is a common disadvantage of water-sealed floor drains. The water seal floor drain has small bay, and the duration of isolating the indoor space from the inner cavity of the sewer is short; the water seal floor drain has large bay, stains are deposited, and sewage is easy to become smelly, so that the water seal floor drain becomes a new pollution source. In addition, the water seal floor drain does not have the function of preventing water return, and the sewage drainage channel is the sewage return-up channel.

The common structure of the self-sealing floor drain is that a valve block is used for separating the inner cavity of the floor drain lower drain from the inner cavity of a sewer so as to form a barrier for isolating the inner cavity of the sewer from an indoor space. The valve plate has various styles, and the corresponding principle details have various characteristics. The existing eccentric block type floor drains, spring type floor drains, silica gel type sealing floor drains, gravity mechanical lever type floor drains, T-shaped floor drains with two magnets attracting each other, T-shaped floor drains with positive and negative synchronous magnetic poles and the like on the market are all straight-through type self-sealing floor drains adopting a valve block separation technology. The difference lies in that the valve plate has different styles, different modes for driving the valve to close and different structures.

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

When sewage begins to flow downwards, the valve plate, the valve seat and the sewage flow downwards form a barrier; this barrier persists during sewage drainage. The indoor space and the inner cavity space of a sewer are separated, the passage of sewage air of the sewer to invade the indoor air through the floor drain is blocked, and the possibility that pests and viruses invade the indoor space is eliminated. When the sewage stops flowing down, the valve plate is closed on the valve seat again, and the barrier does not exist along with the disappearance of residual water between the valve plate and the valve seat.

There is an inherent clearance between the valve plate and the valve seat. The gap is a straight-through channel for communicating the indoor space with the inner cavity of the sewer. But is of a smaller area relative to the submerged 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 large caliber to small caliber, so the valve plate separation technology is the airflow throttling technology. Except the sewage draining process and the short residual water evaporating process, the space between the indoor space and the inner cavity space of the sewer is kept constant.

The sewage is discharged through the floor drain, and filiform matters such as hair and the like, particles such as sand and stone and dust stains dissolved in the water are mixed in the sewage. After sewage is discharged, phenomena of valve plate and valve seat adhesion caused by filiform matters, particles and dust stains can occur; in the sewage discharge process, the possibility of winding the valve plate and other mechanical parts by filaments exists, so that the valve plate closing is influenced. No matter the filiform object, the particulate matter, the dust spot bonds in valve block, disk seat, or the valve block closure is influenced, all can make the inherent clearance grow between valve block and the disk seat. The upward sewage can enter the room through the inherent gap. In addition, the straight-through type self-sealing floor drain has a 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 partition 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 for a long time is caused continuously. The difference between the indoor space and the inner cavity space of the sewer is the duration difference of the isolated state of the indoor space and the inner cavity space of the sewer; when the indoor space is directly communicated with the inner cavity space of the sewer, the quantity of sewer air entering the indoor space in unit time is different, and the possibility that pests and viruses are driven to directly enter the indoor space is different. The water seal technology can not prevent the reverse flow of sewage, and the self-sealing technology can prevent the reverse flow of sewage and determines the closing condition of the valve block.

Therefore, how to prevent odor, insects and sewage from flowing back is a problem to be solved in the research of the floor drain, and the research direction of future floor drains is led; how to realize the reliability and the easy maintenance of the floor drain is the key point of the future development and the consideration of the floor drain.

Disclosure of Invention

The utility model aims at providing a float disk valve floats seals floor drain to solve the above-mentioned problem that present floor drain exists.

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

a floating disc valve floating seal floor drain comprises a shell with an upper opening and a lower opening and a hollow interior, wherein a higher floating disc separation structure and a lower floating disc separation structure are arranged in the shell, the higher floating disc separation structure comprises a floating disc valve, the floating disc valve can be supported, the lower 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 on the upper part of the shell, impacts the upper floating butterfly valve, the upper floating butterfly valve floats, the water flow continuously impacts the lower floating butterfly valve after passing through the upper floating butterfly separating structure, the lower floating butterfly valve floats, and the water flow flows out from the water outlet on the bottom of the shell through the lower floating butterfly separating structure.

Furthermore, a middle-level floating disc separation structure is further arranged inside the floating disc valve floating seal floor drain to form a three-level floating disc separation structure; the intermediate stage floating disc separation structure comprises a middle floating disc valve, and the middle floating disc valve can be supported; the water flow enters from the water inlet on the upper part of the shell, impacts the floating butterfly valve, the floating butterfly valve floats, the water flow continues to impact the floating butterfly valve after passing through the upper floating butterfly separating structure, the middle floating butterfly valve floats, the water flow continues to flow into the lower floating butterfly separating structure through the middle floating butterfly separating structure, the lower floating butterfly valve floats, and the water flow flows out from the water outlet on the bottom of the shell through the lower floating butterfly separating structure.

Furthermore, a separation frame is further arranged in the shell and used for supporting the floating butterfly valve, the floating butterfly valve (4) is in tangential contact with a separation frame gasket (5), and the separation frame is fixed with the shell in close contact through a separation frame sealing ring.

Furthermore, a separation frame bottom is further arranged in the shell and on the lower portion of the separation frame, the separation frame bottom is used for supporting the middle floating butterfly valve, the separation frame bottom (9) is used for supporting the middle floating butterfly valve (8) and is used for supporting the lower floating butterfly valve, and the separation frame bottom is fixed in close contact with the shell through a 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 above-mentioned effect of supporting the butterfly valve can be produced.

Furthermore, a separating frame gasket is embedded in the inner wall of the separating frame, the separating frame gasket is an annular gasket with a certain thickness, and the arc surface of the upper part of the middle floating butterfly valve can be in matched contact with the lower edge of the separating frame gasket to prevent water or odor from returning; the separating frame (3) and the separating frame gasket (5) are of an integral or split structure.

Furthermore, a bottom gasket of the separation frame is embedded in the inner wall of the bottom of the separation frame, the bottom gasket of the separation frame is an annular gasket with a certain thickness, and the arc surface of the upper part of the lower floating butterfly valve can be in matched contact with the lower edge of the bottom gasket of the separation frame, so that water return or odor return is prevented; the separating frame bottom (9) or the separating frame bottom gasket (10) is of an integral or split structure.

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

Furthermore, the outer surface of the bottom of the upper floating butterfly valve and the middle floating butterfly valve is a circular arc surface, so that a tangent plane is formed between the upper floating butterfly valve and the middle floating butterfly valve and the supporting part; the bottom of the lower floating butterfly valve is in a concave ring shape and is used for covering the groove to further prevent odor from leaking out.

Furthermore, the upper outer surface and the lower outer surface of the upper floating butterfly valve, the middle floating butterfly valve and the lower floating butterfly valve are respectively provided with a contact surface capable of contacting with a gasket or a top cover and other components.

Furthermore, a baffle is arranged in the shell and used for keeping the lower butterfly 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 straight-through process of sewage collection and drainage is realized, and the flow rate of sewage is improved.

Further, the upper opening of casing is equipped with the top cap, form the air chamber between top cap and the higher level float the butterfly valve, hinder gas exchange, prevent to reflect the flavor.

Furthermore, the upper surface and the bottom outer surface of the upper floating butterfly valve, the upper surface and the lower outer surface of the middle floating butterfly valve and the outer surface of the upper part of the lower floating butterfly valve are arc surfaces, and the lower surface of the lower floating butterfly valve is a plane provided with annular protrusions so as to form a tangent plane with the 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 through the gap between the lower floating disc valve and the bearing structure surface of the lower floating disc valve along with the air convection; then along with the gas convection, the gas passes through the gap between the bottom gasket of the separation frame and the middle floating disc valve and is diffused to the middle gas chamber; and finally, along with the convection of the gas, the gas passes through a gap between the gasket of the separation frame and the floating butterfly valve and is diffused into a room. Technically, the gap can be controlled in micron level, and the convection current causes small gas exchange quantity. When the convective exchange between the gas in the sewer and the indoor gas reaches a certain balance, the upper chamber is lower than the middle chamber, the middle chamber is lower than the lower chamber, and the lower chamber is lower than the inner cavity of the sewer for harmful components in the unit volume of gas. Thereby, the harmful gas component entering the room is further reduced under the condition of the same gas exchange amount.

The invention utilizes the residual water ring blocking, the secondary throttling retardation and the secondary humidity control to limit the water evaporation of the residual water ring. After the drainage is stopped, the residual water ring around the upper floating butterfly valve gradually disappears along with the evaporation of water into the room. Under the condition that the sewage ring around the upper floating butterfly 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 butterfly valve and the lower floating butterfly valve is unchanged. After the residual water ring around the floating butterfly valve disappears, the gas exchange phenomenon occurs between the middle gas chamber and the indoor space. Consequently, the humidity of the middle air chamber decreases, and the sewage ring around the middle floating disc valve begins to decrease. After the residual water ring around the middle floating disc valve disappears, the phenomenon of air exchange between the lower air chamber and the middle air chamber occurs. As the humidity in the lower air chamber decreases, the dirt ring around the lower butterfly valve begins to decrease. Technically, convection gaps can be controlled to be in a micron level, the exchange between indoor air and gas in the middle air chamber and between the gas in the middle air chamber and gas in the lower air chamber is limited, the gas receiving and exchanging quantity is small due to convection, and the water loss of the lower air chamber is small. When the convective exchange between the lower air chamber and the indoor air reaches a certain balance, the humidity of the lower chamber is higher than that of the middle air chamber, and the humidity of the middle air chamber is higher than the indoor temperature. Due to the restriction of two gaps, the lower air chamber is close to a moisture saturation state, residual water around the lower air chamber is difficult to evaporate, the moisture loss speed of the lower air chamber is very low, and the process that sewage rings around the lower air chamber disappear is slow. Therefore, the possibility that air dirt 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 secondary retardation, prevent particles from entering the room, and prevent sewage from entering the room or prevent sewage from entering the room. When sewage flows upwards reversely, the sewage flows into the bottom sewage guide space, jacks up the lower floating butterfly valve and flows into the lower air chamber space; the continuously gushed sewage lifts the lower floating butterfly valve floating on the water surface, so that the lower floating butterfly valve is attached to the bottom gasket of the separation frame. The more the sewage surface rises, the tighter the lower floating butterfly valve is attached to the bottom gasket of the separation frame; the larger the sewage back pressure is, the tighter the lower floating butterfly valve is attached to the bottom gasket of the separation frame. If the gap between the lower float butterfly valve and the bottom gasket of the separation frame is eliminated, the sewage is blocked in the lower air chamber. If a small gap exists between the lower float valve and the bottom gasket of the separation frame, moisture and particles smaller than the gap enter the middle air chamber. The sewage in the middle air chamber space is increased, and the middle floating disc valve floats until the middle floating disc valve is attached to and tightly pressed with the gasket of the separation frame. The sewage entering the middle air chamber contains small particles, the possibility of eliminating the gap between the middle floating butterfly valve and the separating frame gasket is higher than the possibility of eliminating the gap between the lower floating butterfly valve and the separating frame bottom gasket, and the reliability of preventing the floating butterfly valve from leaking and returning water in a floating sealing manner 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 borne by the floating butterfly valve is a functional driving force. The gravity and the buoyancy force act together to determine the upper and lower positions of the upper floating butterfly valve in the upper water collecting space, the upper and lower positions of the middle floating butterfly valve in the middle air chamber space and the upper and lower positions of the lower floating butterfly valve in the lower air chamber space. When no sewage exists in the floating butterfly valve floating seal floor drain, the floating butterfly valve is attached to the separating frame gasket under the action of gravity to form a superior drainage floating butterfly separating structure; the middle floating butterfly valve is jointed with the bottom gasket of the separation frame to form a middle-stage water drainage floating butterfly separation structure; the lower floating butterfly valve is jointed with the bearing structure surface of the lower floating butterfly valve to form a lower floating butterfly separating structure. When sewage is discharged downwards, the sewage flows into the upper water collecting space through the pores of the top cover and is collected around the upper floating disc valve; with the increase of water quantity, the gap of the upper water drainage floating disc separating structure disappears, the indoor space is separated from the middle air chamber, and the floating disc valve starts to bear buoyancy; when the buoyancy borne by the upper floating butterfly valve is larger than the gravity of the upper floating butterfly valve, the upper floating butterfly valve floats, and sewage flows into the middle air chamber; with the increase of water quantity, the gap of the middle-stage water drainage floating disc separation structure disappears, the lower air chamber is separated from the middle air chamber, and the middle floating disc valve starts to bear buoyancy; when the buoyancy borne by the middle floating disc valve is larger than the gravity of the middle floating disc valve, the middle floating disc valve floats, and sewage flows into the lower air chamber; with the increase of water quantity, the gap of the lower-level water drainage floating disc separating structure disappears, the lower air chamber is separated from the inner cavity space of the sewer, and the lower floating disc valve begins to bear buoyancy; when the buoyancy borne by the lower floating butterfly valve is larger than the gravity of the lower floating butterfly valve, the lower floating butterfly valve floats, and sewage flows through the sewage diversion space at the bottom and enters a sewer. When the sewage stops discharging, the water around the upper floating butterfly valve is gradually reduced, when the buoyancy borne by the upper floating butterfly valve is smaller than the gravity of the upper floating butterfly valve, the upper water discharging floating butterfly separation structure is recovered, and the remained water keeps the indoor space separated from the middle air chamber; then, the water around the middle floating disc valve is gradually reduced, when the buoyancy borne by the middle floating disc valve is smaller than the gravity of the middle floating disc valve, the middle stage water drainage floating disc separation structure is recovered, and the remained water keeps the lower air chamber and the middle air chamber separated; and then, the water around the lower floating disc valve is gradually reduced, when the buoyancy borne by the lower floating disc valve is smaller than the gravity of the lower floating disc valve, the lower floating disc separation structure is recovered, and the remained water keeps the inner cavity space of the sewer separated from the lower air chamber. After the sewage stops draining, the water around the upper floating butterfly valve evaporates to the indoor, when the water around the upper floating butterfly valve disappears, the gap of the upper level draining floating butterfly separating structure appears, the indoor space and the middle air chamber start gas exchange, the water in the air of the middle air chamber runs off, and the water around the middle floating butterfly valve starts to evaporate; after the water around the middle floating disc valve disappears, gaps of the middle-stage water drainage floating disc separation structure appear, the gas exchange between the lower air chamber and the middle air chamber is started, the water in the air of the lower air chamber is lost, and the water around the lower floating disc valve is started to evaporate; when the water around the lower floating disc valve disappears, the gap of the lower floating disc separation structure appears.

The utility model has the advantages and beneficial effect:

the basic structure of the utility model adopts a floating disc separation structure, and the lower surface of the floating disc valve is jointed with the gasket of the separation frame, the gasket of the bottom of the separation frame and the bearing structure surface of the lower level floating disc valve, thereby realizing the isolation of the upper space and the lower space and achieving the purposes of insect prevention and deodorization; the upper surface of the floating butterfly valve is attached to the separating frame gasket and the separating frame bottom gasket, so that the upper space and the lower space are isolated, and the aim of preventing sewage from flowing backwards is fulfilled; the separation frame and the separation frame gasket form a conical surface, so that the straight-through of the sewage collecting and discharging process is realized, and the separation frame bottom gasket form a conical surface, so that the straight-through of the sewage discharging process is realized; the upper layer, the middle layer and the lower layer of the floating disc valve structure form triple isolation, the number of peculiar smell components in a sewer entering a room is controlled, and insect pests are prevented from entering the room; through the upper, middle and lower triple partitions, peculiar smell components and insect pests in the sewer are prevented from invading the room.

The floating disc valve provided by the invention creates a floor drain technology through floating and sealing, applies a new design scheme, and realizes the performance improvement of the floor drain based on a new structure and a new principle.

1. Preventing or controlling sewer foul air attacks. In the isolation state, the indoor space is not communicated with the inner cavity of the sewer, so that the 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 amount of the dirty components in the sewer air entering the room is limited. Theoretically, the peculiar smell components diffused into the room through the dry floor drain are one hundred of the peculiar smell guide components diffused into the room through the existing dry self-sealing floor drain.

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

3. Self-cleaning, anti-blocking, no need of filter screen. The water flow guiding structure is adopted, so that the particles and filaments can be taken away by water flow, the residual water tank is flushed by the aid of the downward water flow, the sediment is removed, and smooth pollution discharge is guaranteed.

4. After primary drainage, the four-prevention floor drain keeps the indoor separation from the inner cavity of the sewer for a long time. Theoretically, the time for which the indoor space and the sewage space are kept in a blocked state after one time of drainage can reach several tens of days. The existing floor drain can not be compared with the existing floor drain. For the house, can keep the state of cutting off of indoor space and sewer inner chamber, get rid of the puzzlement and the harm that come from the sewer inner chamber.

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

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

Drawings

Figure 1 is the utility model discloses a floor drain major structure one.

Figure 2 is the utility model discloses a floor drain major structure two.

Figure 3 is the utility model discloses a floor drain major structure three.

Fig. 4 is the structural schematic diagram of the floating butterfly valve of the utility model.

Fig. 5 is a schematic structural view of the middle floating butterfly valve of the present invention.

Fig. 6 is a schematic structural view of the lower floating butterfly valve of the present invention.

Fig. 7 is a first schematic structural diagram of the partition frame of the present invention.

Fig. 8 is a schematic structural diagram of the partition frame of the present invention.

Fig. 9 is a schematic structural view of the spacer bottom of the present invention.

Fig. 10 (a) and (b) are schematic structural views of the spacer bottom gasket of the present invention.

Fig. 11 (a) and (b) are schematic structural views of the spacer washer of the present invention.

Fig. 12 (a), (b), and (c) are schematic structural views of the top cover of the present invention.

The device comprises a shell, a top cover, a separation frame, a floating butterfly valve, a separation frame gasket, a separation frame sealing ring, a separation frame bottom sealing ring, a floating butterfly valve, a separation frame bottom gasket, a lower floating butterfly valve and a baffle, wherein the shell is 1-the shell, the top cover is 2-the separation frame, the separation frame is 3-the upper floating butterfly valve, the separation frame gasket is 5-the separation frame sealing.

Detailed Description

The invention will be further explained and explained with reference to specific embodiments and drawings.

Example 1:

a floating disc valve floating seal floor drain comprises a shell 1 with an upper opening and a lower opening and a hollow interior, wherein a higher floating disc separation structure and a lower floating disc separation structure are arranged in the shell 1, the higher floating disc separation structure comprises a floating disc valve 4, the floating disc valve 4 can be supported, the lower 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; water flow enters from a water inlet in the upper part of the shell 1, impacts the upper floating butterfly valve 4, the upper floating butterfly valve 4 floats, the water flow continues to impact the lower floating butterfly valve 11 after passing through the upper floating butterfly separating structure, the lower floating butterfly valve 11 floats, and the water flow flows out from a water outlet in the bottom of the shell 1 through the lower floating butterfly separating structure.

Still be equipped with the spacer 3 in the casing 1 for support come-up butterfly valve 4, come-up butterfly valve 4 and spacer gasket 5 tangential contact, spacer 3 is fixed through setting up spacer sealing washer 6 and casing 1 in close contact with.

The housing 1 and the spacer 3 can be designed as an integrated or split structure as long as the above-mentioned effect of supporting the butterfly valve is produced.

A separating frame gasket 5 is embedded in the inner wall of the separating frame 3, the separating frame gasket 5 is an annular gasket with a certain thickness, and the upper arc surface of the lower floating butterfly valve 11 can be in matched contact with the lower edge of the separating frame gasket 5 to prevent water or odor from returning; the separation frame 3 and the separation frame gasket 5 are of an integral or split structure.

The bottom of casing 1 is equipped with the recess, and a small amount of surplus water can persist, plays sealed effect, prevents to counter the flavor.

The upper parts of the upper floating butterfly valve 4 and the lower floating butterfly valve 11 are arc surfaces, so that tangent planes are formed between the upper floating butterfly valve and the supporting part; the lower part of the lower butterfly valve 11 is in a concave ring shape to cover the groove and further prevent odor from leaking out.

The interior of the shell 1 is also provided with a baffle 12 for keeping the lower butterfly 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 collecting and discharging process is realized, and the sewage flow rate is improved.

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

Example 2:

as shown in fig. 1-3, a float disc valve is a float-seal leak, which comprises an outer casing 1, wherein a hollow inner part formed by the casing 1 is provided with a three-stage float valve structure: the upper stage floating butterfly valve, the middle stage floating butterfly valve and the lower stage floating butterfly valve; the upper floating butterfly valve comprises an upper floating butterfly valve 4 arranged at the upper part, and the upper floating butterfly valve 4 can be supported; the middle-stage floating butterfly valve comprises a middle floating butterfly valve 8 arranged in the middle, and the middle floating butterfly valve 8 can be supported; the lower level floating butterfly valve comprises a lower floating butterfly valve 11 arranged at the lower part, and the lower floating butterfly 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 flow impacts the floating butterfly valve 4 to enable the floating butterfly valve to float, so that the water flow smoothly passes through the floating butterfly valve, the water flow continuously impacts the middle-stage floating butterfly valve, the middle-stage floating butterfly valve 8 floats, the water flow continuously passes through the middle-stage floating butterfly valve, and the water flow finally impacts the lower floating butterfly valve 11, so that the water flow is smoothly discharged from a water outlet through the lower floating butterfly valve; two air chambers are formed among the upper stage floating butterfly valve, the middle stage floating butterfly valve and the lower stage floating butterfly valve, and the isolation effect is achieved.

The shell body 1 is further internally provided with a separation frame 3 (shown in figures 7 and 8) for supporting an upper float butterfly valve 4, the upper float butterfly 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 body 1 through a separation frame sealing ring 6.

A separation frame bottom 9 (shown in figure 9) is further arranged in the shell 1 and at the lower part of the separation frame 3, the separation frame bottom 9 is used for supporting a middle floating butterfly valve 8 and resisting against a lower floating butterfly valve 11, the middle floating butterfly 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 a separation frame bottom sealing ring 7.

The housing 1, the spacer 3 and the spacer base 9 can be designed as an integral or split structure as long as the above-described effect of supporting the ball valve can be produced.

The outer surface of the bottom of the upper floating butterfly valve 4 (shown in figure 4) and the middle floating butterfly valve 8 (shown in figure 5) is a circular arc surface, so that a tangent plane is formed between the upper floating butterfly valve and the supporting part; the bottom of the lower butterfly valve 11 (shown in fig. 6) is in the shape of a concave ring, covering the groove, so as to prevent the odor from leaking out.

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

The separation frame 3 and the separation frame gasket 5 form a conical surface, and the separation frame bottom 9 and the separation frame bottom gasket 10 form a conical surface, so that the straight-through process of sewage collection and drainage is realized, and the flow rate of sewage is improved.

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

Example 3:

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

A pressing block or a thread is arranged on the inner wall of the upper part of the shell 1 and used for fixing the separation frame 3; the shell 1 and the separation frame are connected into a whole through a pressing block or a thread, and the separation frame sealing ring 6 is pressed tightly.

The 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 and gas return prevention, insect pest prevention and blocking prevention) floor drain lower part separation structure with a lower-stage floating disc 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 inside the shell.

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

As shown in fig. 11, the middle part of the spacer washer 5 is a circular hole, the upper surface is a conical surface, and the intersection position of the circular hole and the conical surface forms a spacer washer upper sealing strip; the lower surface of the spacer washer 5 is a curved surface and is a lower sealing surface of the spacer washer; the other surfaces are combined surfaces with the separation frame.

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

The spacer washer 5 and the spacer 3 are connected into a whole, and the upper surface of the spacer 3 and the upper surface of the spacer washer 5 are in smooth transition.

The separation frame and the separation bottom are connected into a whole through threads and press the separation frame bottom sealing ring.

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

The upper floating butterfly valve 4, the middle floating butterfly valve 8 and the lower floating butterfly valve 11 are structures which can float in the floor drain drainage flow.

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

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

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

The lower part of the lower floating butterfly valve 11 is of a plane structure, and a convex edge is arranged on the outer side; the upper part is of a segment 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 flow, and is generally selected from a porous and flat plate-like structure.

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

And the upper water collecting surface of the four-prevention floor drain, the upper floating disc valve surface of the separating frame gasket, which is contained in the circular hole in the middle of the separating frame gasket, except the spherical segment surface at the lower part of the floating disc valve 4, and the lower surface of the top cover form an upper chamber of the four-prevention floor drain.

The upper floating butterfly valve 4 is positioned in the upper cavity, and under the action of gravity, the spherical segment surface at the lower part of the upper floating butterfly valve is contacted with the sealing belt on the gasket of the separation frame to form upper layer isolation 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 middle separation structure of the four-prevention floor drain; the inner surface of the bottom 9 of the separation frame and the upper surface of the bottom gasket 10 of the separation frame form a middle water collection surface of the four-prevention floor drain together; the middle round hole of the bottom gasket 10 of the separation frame forms a middle water outlet of the four-prevention floor drain.

The middle floating butterfly valve 8 is positioned in the separation frame bottom 9, and under the action of gravity, the spherical segment surface at the lower part of the middle floating butterfly valve is contacted with the sealing belt on the gasket at the bottom of the separation frame to form middle layer isolation of the floating butterfly valve floating seal floor drain.

The lower floating butterfly valve 11 is positioned on 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 to form the lower layer isolation of the floor drain.

The four-prevention floor drain is characterized in that a middle water collecting surface of the four-prevention floor drain, the lower surface of the separation frame 3, the lower curved surface of the separation frame gasket 5, a middle round hole surface of the separation frame gasket 5, a bottom ball gap surface of the upper floating valve contained in the middle round hole surface of the separation frame gasket 5, and a middle floating disc valve surface except the ball gap surface at the lower part of the middle floating disc valve contained in the middle round hole of the separation frame bottom gasket 5 are enclosed to form a floor drain middle air.

The middle and partial lower surface of the inner side of the shell 1, the surface of the lower floating butterfly valve 11 except the lower ball-lack surface of the lower floating butterfly valve 11 contained in the water outlet of the lower step of the shell 1, the partial 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 circular hole surface of the separation frame bottom gasket 5 and the middle ball-lack surface of the middle floating butterfly valve contained in the middle circular hole surface of the separation frame bottom gasket 10 are enclosed into a four-prevention floor drain lower air chamber.

The upper surfaces of the separating frame gasket 5 and the separating frame bottom gasket 10 both adopt conical surface structures, so that sewage and dirt do not have deposition conditions; the convex edge of the lower part of the shell 1 is smooth and low, and the previous drainage sediment is taken away by flushing with sewage, so that the self-cleaning function is realized.

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

For a dry floor drain, three layers of isolation are formed between indoor air and air in the inner cavity of a sewer. Peculiar smell components in the sewer are diffused to a lower air chamber through a gap between the lower floating butterfly valve and a convex edge of a step at the lower part of the shell in a gas exchange mode; peculiar smell components in the air of the lower air chamber are diffused to the middle air chamber through a gap between the middle floating disc valve and the bottom gasket of the separation frame in a gas exchange mode; the peculiar smell component in the middle air chamber is diffused to the upper chamber through a gap between the upper float valve and the gasket of the separation frame in a gas exchange mode and enters the chamber. Triple isolation is adopted, insect pests are prevented from entering the indoor space, and peculiar smell components are controlled to diffuse indoors.

When sewage leaks downwards from the floor, the sewage flows into the floor drain through the pores of the top cover and is collected in the upper cavity, and when the buoyancy of the sewage is larger than the weight of the floating butterfly valve, the floating butterfly valve floats; the sewage in the upper chamber flows into the middle air chamber through the upper water discharge opening. Along with the collection of sewage in the middle air chamber, when the buoyancy provided by the sewage is larger than the weight of the middle floating disc valve, the middle floating disc valve floats; the sewage in the middle air chamber flows into the lower air chamber through the middle water discharge opening. Along with the collection of sewage in the lower air chamber, when the buoyancy provided by the sewage is larger than the weight of the lower butterfly valve, the lower butterfly valve floats; the sewage in the lower air chamber is discharged into a sewer through the water outlet.

When the sewage on the floor is drained completely, the lower floating butterfly valve begins 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 can not provide enough buoyancy, the spherical segment surface at the lower part of the upper floating butterfly valve is contacted with the sealing belt on the gasket of the separation frame; the middle floating disc valve begins to descend along with the reduction of sewage flowing into the middle air chamber of the floor drain through the upper water outlet, and the lower spherical segment surface of the middle floating disc valve is contacted with the sealing belt on the bottom gasket of the separation frame when the sewage in the middle air chamber can not provide enough buoyancy; along with the reduction of sewage flowing into the lower air chamber of the floor drain through the middle water outlet, the lower floating butterfly valve begins to descend, and when the sewage in the lower air chamber can not provide enough buoyancy, the lower plane of the lower floating butterfly valve is contacted with the top of the convex edge of the lower step of the shell.

The water flow flowing through the floating butterfly valve floating seal floor drain is a deodorization, insect prevention and anti-blocking functional structural body of the floor drain. When sewage flows through the floor drain, indoor air and the inner cavity of the sewer are in a separation state.

When the drainage is finished, a small amount of sewage is retained at the bottom of the upper cavity, 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 float butterfly valve, the middle float butterfly valve and the lower float butterfly 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 inner cavity of the sewer. Triple partition is adopted, so that insect pests and peculiar smell components are prevented from entering the room. The retention time of the separation state is the sum of the evaporation disappearance time of the residual water ring around the upper floating butterfly valve, the evaporation disappearance time of the residual water ring around the middle floating butterfly valve after the residual water ring around the upper floating butterfly valve is evaporated and disappeared, and the evaporation disappearance time of the residual water ring around the lower floating butterfly valve after the residual water ring around the middle floating butterfly valve is evaporated and disappeared. The middle air chamber can keep higher humidity in the lower air chamber, so that water evaporation of residual water rings around the lower floating butterfly valve is prevented, and the lower partition is favorably existed.

The upper spherical segment surface of the lower floating butterfly valve is contacted with the lower sealing surface of the bottom gasket of the separation frame under the action of buoyancy, so that the anti-reverse water-leakage lower layer isolation of the floating butterfly valve floating seal floor drain is formed; under the action of buoyancy, the upper spherical segment surface of the middle floating butterfly valve is in contact with the lower sealing surface of the separating frame gasket to form the anti-reverse upper layer isolation of the floating butterfly valve floating seal floor drain.

When the floor drain has the water return phenomenon, sewage reversely flows into the lower air chamber of the floor drain through the water outlet, is collected in the lower air chamber, and the lower floating butterfly valve floats; when the upper spherical segment surface of the lower floating butterfly valve is contacted with the lower sealing surface of the bottom gasket of the separation frame, the anti-reverse water lower layer is isolated and formed. If the sewage enters the middle air chamber due to the untight isolation seal of the lower layer of the reverse water prevention, the middle floating disc valve floats under the action of the sewage; when the upper spherical segment surface of the middle floating butterfly valve is contacted with the lower sealing surface of the gasket of the separation frame, the upper layer of the anti-reverse water is isolated and formed. The double isolation prevents sewage in the sewer from reversely flowing into the room through the floor drain.

Example 4:

this embodiment has upper portion drainage water-collecting structure, and the lower part sluices water conservancy diversion structure, and the three-level floating plate of middle part separates the structure: the upper floating plate separating structure, the middle floating plate separating structure and the lower floating plate separating structure. The floating butterfly valve comprises a shell 1, a top cover 2, a separation frame 3, a floating butterfly valve 4, a separation frame gasket 5, a separation frame sealing ring 6, a separation frame bottom sealing ring 7, a middle floating butterfly valve 8, a separation frame bottom 9, a separation frame bottom gasket 10 and a lower floating butterfly valve 11 in a floating and sealing way; casing 1, top cap 2, separate frame 3, separate frame packing ring 5, separate frame sealing washer 6, separate at the bottom of the frame 9, separate frame bottom packing ring 10, separate frame bottom sealing washer 7 and combine, constitute the fixed part that floats dish valve floating seal floor drain, inside formation sewage leaks down the space, divide into: an upper water collecting space, a middle air chamber space, a lower air chamber space and a bottom sewage guide space. The floating butterfly valve 4, the middle floating butterfly valve 8 and the lower floating butterfly valve 11 are movable parts of a floating butterfly valve floating seal floor drain, the floating butterfly valve 4 is located in an upper water collecting space, the middle floating butterfly valve 8 is located in a middle air chamber space, and the lower floating butterfly valve 11 is located in a lower air chamber space. The space inside the sewage discharging space is communicated with the indoor space and the inner cavity space of a sewer outside the occupied space of the floating butterfly valve 4, the middle floating butterfly valve 8 and the lower floating butterfly valve 11, and is a passage for gas exchange between the indoor sewage discharging passage, the sewer sewage reverse-flowing passage and the indoor and sewer. The shell 1 is combined with the top cover to form an upper drainage and water collection structure; the upper-level floating butterfly valve bearing structure and the middle-level floating butterfly valve bearing structure are formed by combining 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. The floating butterfly valve attached to the separating frame sealing ring 6 and the upper floating butterfly valve bearing structure form an upper floating butterfly separating structure, and the upper floating butterfly valve comprises an upper water draining floating butterfly separating structure formed by the upper floating butterfly valve and the upper floating butterfly valve bearing structure and an upper reverse water floating butterfly separating structure formed by the middle floating butterfly valve and the upper floating butterfly valve bearing structure; the floating butterfly valve and the middle-level floating butterfly valve bearing structure which are attached to the bottom gasket 10 of the separation frame form a middle-level floating butterfly separation structure, and the middle-level floating butterfly valve bearing structure form a middle-level water drainage floating butterfly separation structure and the middle-level reverse water floating butterfly valve and the middle-level reverse water floating butterfly separation structure; the bearing structure surface of the lower stage floating butterfly valve and the lower stage floating butterfly valve form a lower stage floating butterfly separating structure. The upper floating plate separation structure and the middle floating plate separation structure enclose a middle air chamber, and the middle floating plate separation structure and the lower floating plate separation structure enclose a lower air chamber. The upper level water drainage floating disc separation structure, the middle level water drainage floating disc separation structure and the lower level floating disc separation 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 block for exchanging the indoor air and the air in the inner cavity of the sewer.

The upper floating butterfly valve 4, the middle floating butterfly valve 8 and the lower floating butterfly valve 11 are disc-shaped structures which can float in water. The outer surface of the bottom of the upper floating butterfly valve 4, the outer surfaces of the upper part and the lower part of the middle floating butterfly valve 8 and the upper part of the lower floating butterfly valve 11 adopt arc surfaces (spherical surfaces) which are binding surfaces matched with the bearing surfaces of the floating butterfly valves of the spacer washer 5 or the spacer washer 10; the bottom of the lower floating butterfly valve 11 is in a concave ring shape, and the concave plane is a binding surface matched with the bearing structure surface of the lower floating butterfly valve.

The spacer washer 5 is a hollow structure, the upper surface of the spacer washer adopts a conical surface and is used for bearing the floating butterfly valve, and the lower surface of the spacer washer adopts a cambered surface and is used for bearing the middle floating butterfly valve; the bottom gasket 10 of the separation frame is a hollow structure, the upper surface of the bottom gasket adopts a conical surface and is used for bearing a middle floating butterfly valve, and the lower surface of the bottom gasket adopts an arc surface and is used for bearing a lower floating butterfly valve.

The shell 1 is a hollow structure body, a top cover placing opening is formed in the top of the shell, a top cover placing surface, a separation frame connecting surface and a baffle 12 are formed in the inner wall of the shell, a lower-level floating butterfly valve bearing structure surface is formed, a water outlet is formed in the bottom of the shell and used for placing a top cover 2 and a separation frame 3 and containing a floating butterfly valve 4, a separation frame gasket 5, a separation frame sealing ring 6, a separation frame bottom sealing ring 7, a middle floating butterfly valve 8, a separation frame bottom 9, a separation frame bottom gasket 10 and a lower floating butterfly valve 11. The bearing structure surface of the lower-level floating butterfly valve is provided with a bulge to form a groove for retaining a small amount of residual water, so that the sealing effect is achieved, and the smell is prevented from being reversed. The flapper 12 is used to maintain the lateral position of the lower butterfly valve 11.

The separation frame 3 is arranged in the shell 1 and used for supporting the upper floating butterfly valve 4 and pressing the middle floating butterfly valve 8, the separation frame 3 is fixed with the shell 1 in close contact through the separation frame sealing ring 6, and supporting force is provided for the upper floating butterfly valve 4 and pressure is applied to the middle floating butterfly valve 8 through the separation frame gasket 5.

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

The housing 1, the spacer 3, the spacer washer 5, the spacer bottom washer 10, and the spacer bottom 9 can be combined according to functions, integrated or separated, as long as the above-described supporting effect can be produced.

Embodiments 1-4 provide that the float valve floor drain can realize deodorant, protection against insects, prevent stifled, the anti dirty water backward flow function of floor drain, ensure that the floor drain is unobstructed, and easy to maintain.

Claims

1. The floating disc valve floating seal floor drain is characterized by comprising a shell (1) with an upper opening and a lower opening and a hollow interior, wherein a higher floating disc separation structure and a lower floating disc separation structure are arranged in the shell (1), the higher floating disc separation structure comprises a floating disc valve (4), the floating disc valve (4) can be supported, the lower 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); water flow enters from a water inlet in the upper part of the shell (1), impacts the floating butterfly valve (4), the floating butterfly valve (4) floats, the water flow continuously impacts the lower floating butterfly valve (11) after passing through the upper floating butterfly separating structure, the lower floating butterfly valve (11) floats, and the water flow flows out from a water outlet in the bottom of the shell (1) through the lower floating butterfly separating structure.

2. The floating butterfly valve floating seal floor drain of claim 1, characterized in that a separation frame (3) is further arranged in the shell (1) and used for supporting the floating butterfly valve (4), the floating butterfly valve (4) is in tangential contact with a separation frame gasket (5), and the separation frame (3) is fixed in close contact with the shell (1) through a separation frame sealing ring (6).

3. The floating disk valve floating seal floor drain of claim 2, characterized in that the housing (1) and the separation frame (3) can be designed as an integrated or split structure as long as the above-mentioned supporting disk valve effect is produced.

4. The floating disc valve floating seal floor drain of claim 2, wherein a separating frame gasket (5) is embedded in the inner wall of the separating frame (3), the separating frame gasket (5) is a ring 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 separating frame gasket (5) to prevent water or odor from returning; the separating frame (3) and the separating frame gasket (5) are of an integral or split structure.

5. The floating disc valve floating seal floor drain of claim 1, characterized in that the bottom of the shell (1) is provided with a groove, a small amount of residual water can be reserved to play a role of sealing and prevent odor reversion.

6. The floating disk valve floating seal floor drain of claim 1, characterized in that a baffle (12) is arranged in the shell (1) for keeping the lower floating disk valve (11) in a horizontal balance state.

7. The floating butterfly valve floating seal floor drain of claim 1, characterized in that the upper floating butterfly valve (4) and the lower floating butterfly valve (11) are disc-shaped structures which can float in water.