CN211735688U

CN211735688U - Odor-returning-preventing floor drain

Info

Publication number: CN211735688U
Application number: CN201921571744.3U
Authority: CN
Inventors: 赵海慧
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-09-20
Filing date: 2019-09-20
Publication date: 2020-10-23
Anticipated expiration: 2029-09-20

Abstract

The utility model discloses a smell returning prevention floor drain, belonging to the technical field of floor drain device manufacture, comprising a floor drain main body, a sealing cover plate and a smell returning prevention drainage device; the floor drain main body is a concave shell, a water inlet is formed in the top of the concave shell, and a water outlet is formed in the side wall or the bottom wall of the concave shell; the closed cover plate covers and closes the water inlet, or the closed cover plate covers and closes the water outlet; the odor-returning prevention drainage device is arranged at the drainage outlet, or the odor-returning prevention drainage device is arranged in the floor drain main body and is positioned between the water inlet and the drainage outlet. The utility model has the characteristics of the reliability is higher in the aspect of preventing that the sewer from returning the flavor function.

Description

Odor-returning-preventing floor drain

Technical Field

The utility model relates to a technical field that the floor drain device was made, in particular to prevent returning flavor floor drain.

Background

In modern life floor drains have become a necessary drain for most households in toilets, bathrooms, kitchens and balconies. The conventional floor drain has two basic functions, namely a function of discharging ground running water to a sewer pipe and a function of preventing the sewer pipe from returning odor.

According to the survey report of the international health organization, the direct reason for the SARS epidemic situation of the Hongkong big garden outbreak is that the floor drain matched with the residential quarter of the residential quarter often returns the odor at the end of 3 months in 2003, and the SARS virus rapidly spreads among the residents of the residential quarter of the big garden through the mutually communicated sewer pipes in the process of returning the odor of the floor drain. Therefore, the odor return of the floor drain is avoided as far as possible, and the floor drain is vital to the health of people and the prevention of diseases.

It is worth noting that in the aspect of the function of preventing the odor from returning to the sewer, among various floor drains sold in the market at present, the floor drain which can be stable for a long time by 100% and does not return the odor does not exist, namely, the existing floor drain can be used with more or less odor returning.

At present, the mechanical closed floor drain is a mainstream floor drain product in the market, and the used users are the most. However, after the mechanical closed floor drain is used for a period of time, the odor-proof valve core of the mechanical closed floor drain is often not closed tightly due to aging and deformation of parts or due to hair being clamped on a sealing plate of the odor-proof valve core, so that the odor of a sewer is returned.

Because the deodorization valve core is arranged in the floor drain, when the deodorization valve core is not tightly closed, a user cannot immediately and intuitively find the deodorization valve core. And the user can not dismantle the floor drain after every drainage, and check that the odor-resistant valve core is tightly sealed, so the odor return problem is inevitable when the mechanical closed floor drain is used.

Because the user can not find the odor-resistant valve core closed tightly, when the mechanical closed floor drain begins to smell, the user can not find the odor-resistant valve core immediately and process the odor-resistant valve core in time at the early stage of smell returning. Generally, after the odor is returned for a period of time, when the odor is diffused in a room, the nose of a user can smell the odor in the room, the odor returned by the floor drain can be found, and then the odor-resistant valve core of the floor drain can be maintained or cleaned.

Obviously, the traditional mechanical closed floor drain needs further improvement in the function of preventing the odor from returning to the sewer. In order to better protect the health of people, people need a floor drain with higher reliability in the aspect of preventing the odor from returning to the sewer.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a prevent returning the flavor floor drain has the higher characteristics of reliability in the aspect of preventing that the sewer from returning the flavor function.

In order to achieve the above object, the utility model provides a following technical scheme: an odor-returning-preventing floor drain comprises a floor drain main body, a sealing cover plate and an odor-returning-preventing drainage device;

the floor drain main body is a concave shell, and the concave shell comprises a side wall and a bottom wall; a water inlet is arranged at the top of the concave shell, a water outlet is arranged on the side wall or the bottom wall of the concave shell, and the water outlet is lower than the water inlet;

the closed cover plate comprises a top surface, a bottom surface and a side surface, and covers and closes the water inlet, or covers and closes the water outlet;

the odor-returning prevention drainage device is fixedly connected with the floor drain main body, the odor-returning prevention drainage device is arranged at the drainage port, or the odor-returning prevention drainage device is arranged in the floor drain main body and is positioned between the water inlet and the drainage port.

Furthermore, the water outlet is arranged on the bottom wall or the side wall of the floor drain main body, the closed cover plate covers the water inlet, the water outlet is provided with a smell return prevention water drainage device, and the smell return prevention water drainage device is a deodorization valve core.

Furthermore, the sealing cover plate is movably connected with the floor drain main body through a telescopic connecting column, the telescopic connecting column is longitudinally arranged in the floor drain main body, the top end of the telescopic connecting column is fixedly connected with the bottom surface of the sealing cover plate, and the bottom end of the telescopic connecting column is fixedly connected with the bottom wall or the water outlet of the floor drain main body;

when a user presses the closed cover plate, the closed cover plate bounces upwards under the action of the telescopic connecting column, the closed cover plate leaves the water inlet or the water outlet, and water flows into the water outlet from a gap between the closed cover plate and the floor drain main body; when the user presses the sealing cover plate again, the sealing cover plate shrinks downwards under the action of the telescopic connecting column, and the sealing cover plate covers and seals the water inlet or the water outlet.

Furthermore, the water outlet is arranged on the bottom wall, the closed cover plate covers the water outlet, an odor return prevention drainage device is arranged between the closed cover plate and the water outlet, the odor return prevention drainage device is a first water sealing plate, and the first water sealing plate is longitudinally and fixedly connected to the bottom wall and is annularly arranged in the circumferential direction of the water outlet; the bottom surface of the closed cover plate is inwards concave upwards to form a buckle cover, the buckle cover is embedded in the floor drain main body and is buckled on a first water sealing plate which is annularly arranged on the periphery of the water outlet, the side surface of the buckle cover is positioned between the first water sealing plate and the side wall, the lower edge of the side surface of the buckle cover is lower than the upper edge of the first water sealing plate, and the upper edge of the first water sealing plate is lower than the upper edge of the side wall;

when water needs to be drained, a user presses the buckle cover, the telescopic connecting column bounces upwards, after bounced, the lower edge of the side face of the buckle cover is lower than the upper edge of the first water sealing plate, the buckle cover, the first water sealing plate and the floor drain main body form a water seal floor drain, water flows into the floor drain main body from a space between the side face of the buckle cover and the side wall, then flows to the first water sealing plate from a gap between the lower edge of the side face and the bottom wall, then extends a gap between the first water sealing plate and the inner side of the buckle cover to upwards cross the first water sealing plate to enter a water outlet, and after the water flows through the gap, a water seal is formed between the first water sealing plate and the side wall;

when the drainage is not needed, the user presses the buckle cover again, the telescopic connecting column shrinks downwards, and the buckle cover closes the drainage outlet downwards after shrinking.

Furthermore, a deodorization valve core is arranged at the water outlet.

Furthermore, the water outlet is arranged on the bottom wall, the closed cover plate covers the water outlet, the water outlet is positioned in the lateral direction of the water inlet, and a smell return prevention drainage device is arranged between the closed cover plate and the water inlet;

the floor drain main body is sequentially divided into a water inlet chamber, an odor-returning-preventing drainage chamber and a cover plate switch chamber along the horizontal direction, the water inlet is arranged at the top of the water inlet chamber, the water outlet is arranged on the bottom wall of the cover plate switch chamber, the closed cover plate is embedded in the cover plate switch chamber, the bottom surface of the closed cover plate covers the water outlet, a cover plate opening is arranged at the top of the cover plate switch chamber, the top surface of the closed cover plate penetrates through the cover plate opening to be exposed above the floor drain main body, the specification of the cover plate opening is matched with the outer diameter of the closed cover plate, and the closed cover plate can be inserted and pulled out up;

the odor-returning-preventing drainage chamber is arranged between the water inlet chamber and the cover plate switch chamber and is mutually communicated with the water inlet chamber and the cover plate switch chamber, and the odor-returning-preventing drainage device is arranged in the odor-returning-preventing drainage chamber.

Furthermore, the odor returning prevention drainage device is a water seal assembly or a mechanical seal assembly;

when the odor-returning-preventing drainage device is a water seal assembly, the water seal assembly comprises an air partition plate and a second water seal plate which are longitudinally arranged, the air partition plate is arranged at one side close to the water inlet chamber, and the second water seal plate is arranged at one side close to the cover plate switch chamber; the top and the left and the right sides of the air partition plate are fixedly connected with the floor drain main body, the bottom is provided with a first water passing port, the bottom and the left and the right sides of the second water sealing plate are fixedly connected with the floor drain main body, the top is provided with a second water passing port, and the second water passing port is higher than the first water passing port.

When the odor-returning prevention drainage device is a mechanical sealing assembly, the mechanical sealing assembly comprises a frame and an odor-proof plate covered on the frame, the frame is arranged at one side close to the water inlet chamber, the odor-proof plate is arranged at one side close to the cover plate switch chamber, and the odor-proof plate is movably connected with the frame; when water flows through the frame, the odor-proof plate is opened towards one side of the cover plate switch chamber under the action of the water flow, and after the water flows through the frame, the odor-proof plate is closed and covered on the frame.

Furthermore, a washing machine drain pipe connector is arranged on the closed cover plate and communicated with the water outlet.

Furthermore, a filtering device is arranged between the water inlet and the odor-returning prevention drainage device, and the filtering device filters water flowing from the water inlet to the water outlet.

Furthermore, the filtering device is PP cotton, sponge or nylon gauze cloth.

The beneficial effect of adopting above technical scheme is:

when the odor-returning-preventing drainage device is not closed tightly, a user cannot find timely treatment usually, and the user cannot treat the odor until the odor is diffused in each room; after the process of the utility model is applied, the user opens the sealing cover plate before bathing, closes the sealing cover plate after bathing, and when the sealing cover plate is opened and closed, the user can find the smell returning condition of the floor drain in time through the change of the smell near the floor drain and can carry out corresponding treatment in time, thereby avoiding that the odor is diffused in a large range in a room because the floor drain continuously returns the smell under the condition that the user is not aware of;

secondly, the floor drain with a cover plate capable of sealing a water inlet of the floor drain also appears in the market at present, but the cover plate needs to be frequently opened and closed in the use process of the floor drain, otherwise, the sewer pipeline can return odor to the indoor space at the intermittence of opening and closing the cover plate; use the utility model discloses afterwards, the user no longer need frequently open and shut the closing cover board. When a user needs to intermittently drain water in a short time, such as in a shower, the user can open the closing cover plate to drain water, and the odor return prevention drainage device can play a role in preventing odor return during the drainage interval. When the user does not need to drain water for a long time, such as after bathing or on a business trip, the user can seal the floor drain by using the sealing cover plate, so that the smell of the sewer can be stably and reliably prevented from returning;

thirdly, the function of preventing the sewer from returning odor of the conventional mechanical sealed floor drain is unstable, the sewer can return odor after being used for a period of time, and the user can hardly perceive the sewer at the early stage of returning odor, and when the user perceives the sewer, odor is diffused in a room; in the using process of the utility model, the user can close the sealing cover plate after draining water, and the function of preventing the sewer from returning odor is stable and reliable after the sealing cover plate is closed;

and fourthly, when the deodorizing valve core of the conventional mechanical sealing type floor drain is not tightly closed, a user cannot usually find the deodorizing valve core immediately. Before a user senses the situation, mosquitoes in the sewer pipe can continuously enter the room along with the opened odor-resistant valve core, and particularly the situation is more serious in summer; use the utility model discloses afterwards, the user opens the closing flap before bathing, closes the closing flap after bathing, gets into when indoor from the floor drain as the mosquito, and the user can in time discover in time to handle.

Drawings

In order to more clearly illustrate the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.

Fig. 1 is a schematic structural diagram of a first embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a second embodiment of the present invention.

Fig. 3 is a schematic structural diagram of a third embodiment of the present invention.

Fig. 4 is a schematic structural diagram of a fourth embodiment of the present invention.

Fig. 5 is a schematic view of the structure and position of the closing cover 1 according to the fifth embodiment of the present invention.

Fig. 6 is a schematic diagram of the structure and position of the sealing cover plate 1 after being bounced in the fifth embodiment of the present invention.

Fig. 7 is a schematic structural diagram of a sixth embodiment of the present invention.

Fig. 8 is a schematic structural diagram of a seventh embodiment of the present invention.

Fig. 9 is a schematic structural diagram of an eighth embodiment of the present invention.

Description of reference numerals:

1. closing the cover plate; 2. a side wall; 3. a bottom wall; 4. a water inlet; 5. a water outlet; 6. a top surface; 7. a bottom surface; 8. a side surface; 9. a telescopic connecting column; 10. a first water inlet; 11. a first water outlet; 12. a first anti-reversion odor baffle; 13. a second water inlet; 14. a second water outlet; 15. a second anti-reversion odor baffle; 16 a first water seal plate; 17. a water inlet chamber; 18. a smell return prevention drainage chamber; 19. a cover plate switch chamber; 20. the cover plate is provided with an opening; 21. sealing ring for preventing returning odor; 22. a snap ring; 23. an air separator; 24. a second water seal plate; 25. a first water passing opening; 26. a second water passing opening; 27. a filter screen; 28. a frame; 29. an odor-resistant panel; 30. the water outlet pipe interface of the washing machine; 31. a block of sponge.

Detailed Description

In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings.

Example one

Referring to fig. 1, the odor-returning-preventing floor drain comprises a floor drain main body, a sealing cover plate 1 and an odor-returning-preventing drainage device; the floor drain main body is a concave shell, and the concave shell comprises a side wall 2 and a bottom wall 3; the top of the concave shell is provided with a water inlet 4, and the bottom wall 3 of the concave shell is provided with a water outlet 5.

The sealing cover plate 1 comprises a top surface 6, a side surface 8 and a bottom surface 7, the bottom surface 7 of the sealing cover plate 1 covers and seals the water inlet 4, and a soft sealing ring is arranged between the sealing cover plate 1 and the water inlet 4 and used for enhancing the sealing effect.

The sealing cover plate 1 is movably connected with the floor drain main body through a telescopic connecting column 9, the telescopic connecting column 9 is longitudinally arranged in the floor drain main body, the top end of the telescopic connecting column 9 is fixedly connected with the bottom surface 7 of the sealing cover plate 1, and the bottom end of the telescopic connecting column 9 is fixedly connected with the bottom wall 3 or the water outlet 5 of the floor drain main body. In this embodiment, the bottom end of the telescopic connecting column 9 is fixedly connected with the bottom wall 3 of the floor drain main body through a support frame, and water flow can pass through the gap of the support frame.

When a user presses the sealing cover plate 1, the sealing cover plate 1 bounces upwards under the action of the telescopic connecting column 9, the sealing cover plate 1 leaves the water inlet 4, and water flows into the water outlet 5 from a gap between the sealing cover plate 1 and the floor drain main body.

When the user presses the sealing cover plate 1 again, the sealing cover plate 1 contracts downwards under the action of the telescopic connecting column 9, and the sealing cover plate 1 covers and seals the water inlet 4.

And a smell return prevention drainage device is arranged at the drainage port 5 or between the water inlet 4 and the drainage port 5 in the floor drain main body. In this embodiment, a smell return prevention drainage device is arranged at the drainage port 5, the smell return prevention drainage device is a deodorization valve core, and the deodorization valve core is in threaded connection with the drainage port 5.

The odor-resistant valve core comprises a first water inlet 10 and a first water outlet 11, the outer edge of the first water inlet 10 is in threaded connection with the water outlet 5, a first odor-return-preventing baffle plate 12 covers the first water outlet 11, and the first odor-return-preventing baffle plate 12 is hinged to the upper edge of the first water outlet 11; when water flow enters the deodorization valve core, the first odor-returning prevention baffle 12 opens the discharged water flow under the action of the water flow, and after the water flow is discharged, the first odor-returning prevention baffle 12 covers and seals the first water outlet 11 under the action of gravity.

In this embodiment, the sealing cover plate 1 and the deodorizing valve core are matched to achieve the effect of complementary advantages, and make up for the defects of each other in function. When a user needs to intermittently drain water in a short time, such as during shower, the user can open the sealing cover plate 1 to drain water, the deodorization valve core can play a role in preventing odor from returning in the intermittent draining, and the user does not need to frequently switch the sealing cover plate 1. When the user need not the drainage for a long time, for example after bathing, or when going out on business, the user can with closing cover 1 seals the floor drain water inlet can be reliable and stable like this prevent that the sewer from returning the flavor.

Example two

Referring to fig. 2, the other steps are the same as the first embodiment, except that the drain port 5 is arranged on the side wall 2 of the floor drain main body, the height of the drain port 5 is lower than that of the water inlet 4, water flows from the water inlet 4 to the drain port 5, and a horizontal deodorization valve core is connected to the drain port 5 in a threaded manner.

The transverse deodorization valve core comprises a second water inlet 13 and a second water outlet 14 which are communicated with each other, the second water inlet 13 is communicated with an inner cavity of the floor drain main body, the outer surface of the second water outlet 14 is a bevel cut surface with an inclined upward opening, a second odor-returning-preventing baffle 15 covers the second water outlet 14, the second odor-returning-preventing baffle 15 is hinged with the upper edge of the second water outlet 14, and the second odor-returning-preventing baffle 15 covers and seals the second water outlet 14 under the action of gravity.

The sealing cover plate 1 covers and seals the water inlet 4, a soft sealing ring is arranged between the sealing cover plate 1 and the water inlet 4, the telescopic connecting column 9 is longitudinally arranged in the floor drain main body, the top end of the telescopic connecting column is fixedly connected with the bottom surface 7 of the sealing cover plate 1, and the bottom end of the telescopic connecting column is fixedly connected with the bottom wall 3.

When water needs to be drained, a user presses down the closed cover plate 1, the closed cover plate 1 bounces upwards under the action of the telescopic connecting column 9, water flow enters the floor drain main body from the water inlet 4 below the closed cover plate 1, then enters the transverse deodorization valve core from the second water inlet 13 of the transverse deodorization valve core arranged at the water outlet 5 on the side wall 2, the second odor-returning-prevention baffle 15 is lifted upwards under the action of the water flow, and the water flow is discharged from the second water outlet 14. After the water flow is discharged, the second odor-returning prevention baffle 15 seals the second water outlet 14 under the action of gravity.

When the water does not need to be drained, the user presses the closed cover plate 1 again, and under the action of the telescopic connecting column 9, the closed cover plate 1 contracts downwards to cover and close the water inlet 4.

The floor drain of the embodiment is particularly suitable for being installed at a thin ground place of a construction site. In addition, when the displacement floor drain is manufactured in the reconstruction construction of the toilet, the embodiment is particularly suitable. Compared with a conventional mechanical closed floor drain, the floor drain has the advantages that the vertical occupied space is smaller, and the odor return prevention effect is more reliable.

EXAMPLE III

Referring to fig. 3, the other steps are the same as those in embodiment 1, except that a smell return prevention drainage device is arranged in the floor drain main body, the smell return prevention drainage device is a first water sealing plate 16, the first water sealing plate 16 is longitudinally and fixedly connected to the bottom wall 3 and annularly arranged in the circumferential direction of the drainage port 5, the bottom surface 7 of the sealing cover plate 1 is recessed upwards to form a fastening cover, the fastening cover is embedded in the floor drain main body and located above the drainage port 5, the first water sealing plate 16 is arranged below the fastening cover and located inside the side surface 8 of the fastening cover, and an opening at the bottom of the fastening cover is larger than an opening formed at the top of the first water sealing plate 16.

The buckle cover is buckled on a first water sealing plate 16 which is annularly arranged on the periphery of the water outlet 5, the side surface 8 of the buckle cover is positioned between the first water sealing plate 16 and the side wall 2, the lower edge of the side surface 8 of the buckle cover is lower than the upper edge of the first water sealing plate 16, and the upper edge of the first water sealing plate 16 is lower than the upper edge of the side wall 2;

the bottom end of the telescopic connecting column 9 is fixedly connected with the water outlet 5 through a support frame;

when drainage is needed, a user presses the buckle cover, the telescopic connecting column 9 bounces upwards, after bounced, the lower edge of the side face 8 of the buckle cover is lower than the upper edge of the first water sealing plate 16, the buckle cover, the first water sealing plate 16 and the floor drain main body form a water-sealed floor drain, water flows into the floor drain main body from a space between the side face 8 of the buckle cover and the side wall 2, then flows to the first water sealing plate 16 from a gap between the lower edge of the side face 8 and the bottom wall 3, then flows upwards through the first water sealing plate 16 along the gap between the first water sealing plate 16 and the inner side of the buckle cover to enter the drainage outlet 5, after the water flows through, a water seal is formed between the first water sealing plate 16 and the side wall 2, and the side face 8 of the buckle cover isolates air between the water inlet 4 and the drainage outlet 5 in the floor drain main body;

when the drainage is not needed, the user presses the buckle cover again, the telescopic connecting column 9 shrinks downwards, and the buckle cover closes the drainage outlet 5 downwards after shrinking. In this embodiment, the lower edge of the side surface 8 of the cap is closed on the bottom wall 3 of the drain opening 5 in the circumferential direction, and the cap closes the drain opening 5.

In this embodiment, on the basis of the original floor drain main body, the first water sealing plate 16 is additionally arranged, the sealing cover plate 1 is improved into a concave buckle cover with a downward opening, and the buckle cover, the first water sealing plate 16 and the floor drain main body are matched with each other by means of the support of the telescopic connecting column 9, so that a water sealing floor drain is formed after the buckle cover is bounced.

The beneficial effects of this embodiment lie in, can avoid the user frequent switch the closing cover 1 when closing cover 1 is opened, lie in first water seal board 16 with the water seal between lateral wall 2 can play the effect of temporary prevention returning the flavor, can avoid closing cover 1 to return the problem of flavor when opening. When the user does not use the floor drain to drain water for a long time, the user can close the sealing cover plate 1, so that the problem of odor return of the water seal floor drain caused by drying of the water seal can be avoided.

Example four

Referring to fig. 4, the rest is the same as embodiment 3, except that a deodorization valve core is arranged at the drain port 5, and the deodorization valve core is connected with the drain port 5 in a threaded manner.

In this embodiment, implement three on the basis of structure, add deodorant case in outlet 5 department, the deodorant case of addding can further improve the utility model discloses prevent returning the reliability of flavor function to further reduce the probability that the sewer returns the flavor emergence.

EXAMPLE five

Referring to fig. 5, the other points are the same as those of embodiment 1, except that the drain opening 5 is provided on the bottom wall 3, the sealing cover plate 1 covers the drain opening 5, and the drain opening 5 is located at the side of the water inlet 4.

The floor drain main body is sequentially divided into a water inlet chamber 17, an odor-returning prevention drainage chamber 18 and a cover plate switch chamber 19 along the horizontal direction, the water inlet 4 is arranged at the top of the water inlet chamber 17, and the water outlet 5 is arranged on the bottom wall 3 of the cover plate switch chamber 19.

The sealing cover plate 1 is embedded in the cover plate opening and closing chamber 19, the bottom surface 7 covers the water outlet 5, a cover plate opening 20 is arranged at the top of the cover plate opening and closing chamber 19, the top surface 6 of the sealing cover plate 1 penetrates through the cover plate opening 20 to be exposed above the floor drain main body, the specification of the cover plate opening 20 is matched with the outer diameter of the side surface 8 of the sealing cover plate 1, and the sealing cover plate 1 is cylindrical and can be inserted and pulled up and down along the cover plate opening 20.

The bottom surface 7 of the closed cover plate 1 is upwards concave, the top end of the telescopic connecting column 9 is fixedly connected with the concave bottom surface 7, and the bottom end of the telescopic connecting column is fixedly connected with the water outlet 5 through a support frame.

The bottom ring of 1 side 8 of closing cover is equipped with soft anti-returning flavor seal ring 21, anti-returning flavor seal ring 21 with closing cover 1 links firmly apron opening 20 department ring be equipped with prevent returning flavor seal ring 21 matched with snap ring 22, snap ring 22 links firmly with the floor drain main part, anti-returning flavor seal ring 21 with snap ring 22 cooperates the closing cover 1 is sealed after bounceing apron opening 20 prevents that sewer smell from following return out in the apron opening 20.

The odor return prevention drain chamber 18 is provided between the water inlet chamber 17 and the cover opening/closing chamber 19, and communicates with the water inlet chamber 17 and the cover opening/closing chamber 19. The water inlet chamber 17 and the cover plate switch chamber 19 are respectively positioned at the left side and the right side of the odor-returning prevention drainage chamber 18.

A water seal assembly is arranged in the odor-returning prevention drainage chamber 18 and comprises an air partition plate 23 and a second water seal plate 24 which are longitudinally arranged, the air partition plate 23 is arranged on one side close to the water inlet chamber 17, and the second water seal plate 24 is arranged on one side close to the cover plate switch chamber 19. The top and the left and the right sides of the air partition plate 23 are fixedly connected with the floor drain main body, the bottom is provided with a first water passing port 25, the bottom and the left and the right sides of the second water sealing plate 24 are fixedly connected with the floor drain main body, the top is provided with a second water passing port 26, and the second water passing port 26 is higher than the first water passing port 25.

As shown in fig. 6, when the floor drain drains water, a user presses the sealing cover plate 1, the sealing cover plate 1 bounces upwards, and the anti-returning odor sealing ring 21 and the snap ring 22 are tightly attached to close the cover plate opening 20 after bounced; the water flow enters the water inlet chamber 17 from the water inlet 4, enters the odor-returning prevention drainage chamber 18 along the water inlet chamber 17, firstly passes through the first water passing opening 25 in the odor-returning prevention drainage chamber 18, then passes through the second water passing opening 26 upwards along the second water sealing plate 24 to enter the cover plate opening and closing chamber 19, and then enters the drainage opening 5 from the gap between the bottom surface 7 and the bottom wall 3 of the closed cover plate 1.

After the water is drained, a water seal is formed in the floor drain body at one side, close to the inlet chamber, of the second water sealing plate 24 below the second water passing port 26, and the air partition plate 23 isolates air between the water inlet 4 and the water outlet 5 in the floor drain body.

When the water drainage is not needed, the user presses the closing cover plate 1 again, and the closing cover plate 1 closes and closes the water outlet 5 downwards under the action of the telescopic connecting column 9, as shown in fig. 5.

A filter screen 27 is arranged between the water inlet chamber 17 and the odor-returning prevention drainage chamber 18, and the filter screen 27 is a nylon gauze with the mesh diameter smaller than 1 mm. The edge of nylon yarn screen cloth is provided with the carriage, the carriage with the floor drain main part can be dismantled and be connected.

In order to accelerate the drainage speed of the floor drain, many users choose to install the strip-shaped floor drain in a toilet, but the water inlet 4 of the existing conventional strip-shaped floor drain is difficult to seal when the water inlet 4 is too large. The present embodiment can solve this problem. The beneficial effect of this embodiment lies in, when needing to seal rectangular shape floor drain, only need press the closing cover plate 1 can. And simultaneously, the utility model discloses an add the water seal subassembly can further strengthen and prevent returning the flavor function effect. In this embodiment, the water seal assembly is matched with the sealing cover plate 1, so that frequent opening and closing of the sealing cover plate 1 by a user can be avoided.

EXAMPLE six

Referring to fig. 7, the other steps are the same as the fifth embodiment, except that a mechanical closing assembly is arranged in the odor-returning prevention and drainage chamber 18, the mechanical closing assembly comprises a frame 28 and an odor-proof plate 29 covering the frame 28, the frame 28 is arranged at a side close to the water inlet chamber 17 and is inclined towards the water inlet chamber 17; the anti-odor plate 29 is disposed on the side close to the cover switch chamber 19, the upper edge of the anti-odor plate 29 is hinged to the upper edge of the frame 28, and the anti-odor plate 29 covers and closes the frame 28 under the action of gravity.

When the floor drain drains, water flow enters the water inlet chamber 17 from the water inlet 4, enters the odor-returning prevention drainage chamber 18 from the water inlet chamber 17, the odor-preventing plate 29 is opened towards one side of the cover plate opening and closing chamber 19 under the action of the water flow, and the water flow enters the cover plate opening and closing chamber 19 from the frame 28. After the water is drained, the anti-odor plate 29 covers the frame 28 under the action of gravity, so that air between the water inlet 4 and the water outlet 5 in the floor drain main body is isolated.

EXAMPLE seven

Referring to fig. 8, the other steps are the same as the first embodiment, except that a washing machine drain connector 30 is disposed on the sealing cover plate 1, and the washing machine drain connector 30 is communicated with the drain opening 5.

The top end of the telescopic connecting column 9 is fixedly connected with the bottom surface 7 of the sealing cover plate 1 through a support frame, the bottom end of the telescopic connecting column 9 is fixedly connected with the bottom wall 3 of the floor drain main body through the support frame, and water flow can penetrate through the gap of the support frame.

After the conventional floor drain is connected with a drainage pipe of a washing machine, when the drainage pipe of the washing machine drains water, water is easy to return from the water inlet 4 to the ground, in the embodiment, when the drainage pipe of the washing machine drains water, a user can press the sealing cover plate 1 to enable the sealing cover plate 1 to seal the water inlet 4, and therefore the problem of water return is effectively solved.

Example eight

Referring to fig. 9, the other steps are the same as the first embodiment, except that a filtering device is arranged between the water inlet 4 and the deodorization valve core, and the filtering device filters the water flowing from the water inlet 4 to the water outlet 5. The filter device is PP cotton or sponge.

In this embodiment, the filtering device is a block-shaped sponge 31 filled in the floor drain main body, and the specification of the filtering device is matched with the inner cavity of the floor drain main body. Silver ion antibacterial materials are added into the block-shaped sponge 31 to prevent mildew.

In this embodiment, the telescopic connection column 9 is not installed, the user can manually open and close the sealing cover plate 1, and in order to facilitate opening and closing, a handle is arranged on the sealing cover plate 1 in this embodiment.

The advantage of this embodiment adopting the block-shaped sponge 31 as the filtering device is that, compared with the metal grate or plastic grid-shaped filter screen in the traditional floor drain, the filtering effect of the block-shaped sponge 31 adopted is better, and the hairs mixed in the water flow can be effectively prevented from entering the odor-resistant valve core, so that the probability of odor return caused by the hair blocking of the odor-resistant valve core can be effectively reduced.

While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.

Claims

1. An odor-returning-prevention floor drain is characterized by comprising a floor drain main body, a sealing cover plate (1) and an odor-returning-prevention drainage device;

the floor drain main body is a concave shell, and the concave shell comprises a side wall (2) and a bottom wall (3); a water inlet (4) is arranged at the top of the concave shell, a water outlet (5) is arranged on the side wall (2) or the bottom wall (3) of the concave shell, and the water outlet (5) is lower than the water inlet (4);

the closed cover plate (1) comprises a top surface (6), a bottom surface (7) and a side surface (8), the closed cover plate (1) covers and closes the water inlet (4), or the closed cover plate (1) covers and closes the water outlet (5);

the odor-returning prevention drainage device is fixedly connected with the floor drain main body and is arranged at the drainage outlet (5), or the odor-returning prevention drainage device is arranged in the floor drain main body and is positioned between the water inlet (4) and the drainage outlet (5).

2. The anti-odor-return floor drain according to claim 1, wherein the water outlet (5) is arranged on the bottom wall (3) or the side wall (2) of the floor drain main body, the closed cover plate (1) covers the water inlet (4), an anti-odor-return drainage device is arranged at the water outlet (5), and the anti-odor-return drainage device is a deodorization valve core.

3. The odor returning prevention floor drain according to claim 1, wherein the sealing cover plate (1) is movably connected with the floor drain main body through a telescopic connecting column (9), the telescopic connecting column (9) is longitudinally arranged in the floor drain main body, the top end of the telescopic connecting column (9) is fixedly connected with the bottom surface (7) of the sealing cover plate (1), and the bottom end of the telescopic connecting column (9) is fixedly connected with the bottom wall (3) or the water outlet (5) of the floor drain main body;

when a user presses the closed cover plate (1), the closed cover plate (1) bounces upwards under the action of the telescopic connecting column (9), the closed cover plate (1) leaves the water inlet (4) or the water outlet (5), and water flows into the water outlet (5) from a gap between the closed cover plate (1) and the floor drain main body; when the user presses the closed cover plate (1) again, the closed cover plate (1) shrinks downwards under the action of the telescopic connecting column (9), and the closed cover plate (1) covers and closes the water inlet (4) or the water outlet (5).

4. The anti-odor-return floor drain according to claim 3, characterized in that the drain outlet (5) is arranged on the bottom wall (3), the sealing cover plate (1) covers the drain outlet (5), an anti-odor-return drainage device is arranged between the sealing cover plate (1) and the drain outlet (5), the anti-odor-return drainage device is a first water sealing plate (16), the first water sealing plate (16) is longitudinally fixed on the bottom wall (3) and is arranged around the periphery of the drain outlet (5); the bottom surface (7) of the closed cover plate (1) is inwards concave upwards to form a buckle cover, the buckle cover is embedded in the floor drain main body and is buckled on a first water sealing plate (16) which is annularly arranged on the periphery of the water outlet (5), the side surface (8) of the buckle cover is positioned between the first water sealing plate (16) and the side wall (2), the lower edge of the side surface (8) of the buckle cover is lower than the upper edge of the first water sealing plate (16), and the upper edge of the first water sealing plate (16) is lower than the upper edge of the side wall (2);

when water needs to be drained, a user presses the buckle cover, the telescopic connecting column (9) bounces upwards, after bounced, the lower edge of the side face (8) of the buckle cover is lower than the upper edge of the first water sealing plate (16), the buckle cover, the first water sealing plate (16) and the floor drain main body form a water sealing floor drain, water flows into the floor drain main body from a space between the side face (8) of the buckle cover and the side wall (2), then flows to the first water sealing plate (16) from a gap between the lower edge of the side face (8) and the bottom wall (3), then extends the gap between the first water sealing plate (16) and the inner side of the buckle cover to upwards cross the first water sealing plate (16) to enter a water outlet (5), and after the water flows through, a water seal is formed between the first water sealing plate (16) and the side wall (2);

when the drainage is not needed, the user presses the buckle cover again, the telescopic connecting column (9) shrinks downwards, and the buckle cover closes the drainage outlet (5) downwards after shrinking.

5. The anti-odor-return floor drain according to claim 4, characterized in that a deodorizing valve core is arranged at the drain outlet (5).

6. The anti-odor-return floor drain according to claim 3, characterized in that the drain outlet (5) is arranged on the bottom wall (3), the closed cover plate (1) covers the drain outlet (5), the drain outlet (5) is arranged at the side of the water inlet (4), and an anti-odor-return drainage device is arranged between the closed cover plate (1) and the water inlet (4);

the floor drain main body is sequentially divided into a water inlet chamber (17), an odor-returning-preventing drainage chamber (18) and a cover plate opening and closing chamber (19) along the horizontal direction, the water inlet (4) is arranged at the top of the water inlet chamber (17), the drainage port (5) is arranged on the bottom wall (3) of the cover plate opening and closing chamber (19), the closed cover plate (1) is embedded in the cover plate opening and closing chamber (19), the drainage port (5) is covered by the bottom surface (7), a cover plate opening (20) is arranged at the top of the cover plate opening and closing chamber (19), the top surface (6) of the closed cover plate (1) penetrates through the cover plate opening (20) to be exposed above the floor drain main body, the specification of the cover plate opening (20) is matched with the outer diameter of the side surface (8) of the closed cover plate (1), and the closed cover plate (1) can be inserted and pulled out from top;

the odor-return-preventing drainage chamber (18) is arranged between the water inlet chamber (17) and the cover plate switch chamber (19) and is mutually communicated with the water inlet chamber (17) and the cover plate switch chamber (19), and the odor-return-preventing drainage device is arranged in the odor-return-preventing drainage chamber (18).

7. The odor returning prevention floor drain of claim 6, wherein the odor returning prevention drainage device is a water seal assembly or a mechanical seal assembly;

when the odor-returning prevention drainage device is a water seal assembly, the water seal assembly comprises an air partition plate (23) and a second water seal plate (24) which are longitudinally arranged, the air partition plate (23) is arranged at one side close to the water inlet chamber (17), and the second water seal plate (24) is arranged at one side close to the cover plate opening and closing chamber (19); the top and the left and the right sides of the air partition plate (23) are fixedly connected with the floor drain main body, the bottom is provided with a first water passing port (25), the bottom and the left and the right sides of the second water sealing plate (24) are fixedly connected with the floor drain main body, the top is provided with a second water passing port (26), and the second water passing port (26) is higher than the first water passing port (25);

when the odor-returning prevention drainage device is a mechanical sealing assembly, the mechanical sealing assembly comprises a frame (28) and an odor-proof plate (29) covered on the frame (28), the frame (28) is arranged at one side close to the water inlet chamber (17), the odor-proof plate (29) is arranged at one side close to the cover plate switch chamber (19), and the odor-proof plate (29) is movably connected with the frame (28); when water flows through the frame (28), the anti-odor plate (29) is opened towards one side of the cover plate opening and closing chamber (19) under the action of the water flow, and after the water flows through, the anti-odor plate (29) is closed to cover the frame (28).

8. The anti-returning odor floor drain of claim 1, wherein a washing machine drain pipe connector (30) is arranged on the sealing cover plate (1), and the washing machine drain pipe connector (30) is communicated with the drain outlet (5).

9. The anti-odour floor drain according to claim 1, wherein a filtering device is arranged between the inlet (4) and the anti-odour drainage device, said filtering device filtering the water flow from the inlet (4) to the outlet (5).

10. The anti-returning-odor floor drain according to claim 9, wherein the filtering device is a PP cotton, sponge or nylon gauze cloth.