CN220247093U - Stinking-proof sewer connecting device and floor drain - Google Patents

Abstract

The utility model provides a deodorizing and sewer connecting device and a floor drain, and belongs to the technical field of pipelines. The water inlet section is provided with at least one water inlet, and the water outlet section is provided with a water outlet; the secondary downcomer sets up in the opening part of drainer, secondary downcomer top be drainage entry, the bottom is equipped with deodorant structure, the play water section external diameter of the downpipe be less than the internal diameter of secondary downcomer, the play water section outside be equipped with at least one protruding muscle, the downpipe be responsible for and insert the intraductal tight fit of formation of secondary downcomer, work as the play water section of downpipe insert in the secondary downcomer, play water section outer wall and secondary downcomer inner wall between form secondary drainage channel. The sewage draining device is firmly connected with an external water pipe, can drain sewage outside the drainer, and can not produce accumulated water; can completely block odor; the universality is strong.

Description

Stinking-proof sewer connecting device and floor drain

Technical Field

The utility model belongs to the technical field of pipelines, and relates to a deodorizing and sewer connecting device and a floor drain.

Background

In daily life, like washing machine drainage or basin drainage all pass through to connect drainage pipe to sewer pipe in, generally only adopt the grafting mode to connect, therefore when washing machine etc. drainage volume is great, drainage pipe falls out very easily, causes ground to be sewage entirely, and consequently some families can select to install the drainer and prevent drainage pipe and drop, but have the problem that sewage of drainer peripheral surface can't get rid of, easily cause ponding, in addition have the problem that can't isolate the foul smell in the sewer pipe, lead to the foul smell recoil.

For example, chinese patent discloses a drainage device for connecting a counter basin drainer [ application number: 201420418656.0 the device comprises a coupling nut, a deodorizing device and a telescopic sewer pipe with a deodorizing rubber sleeve arranged at the bottom, wherein the top of the coupling nut is in threaded connection with a counter basin drainer, the bottom of the coupling nut is in reverse clamping connection with the deodorizing device, the deodorizing device comprises a deodorizing body and a deodorizing upper cover, the deodorizing upper cover is in threaded connection with the deodorizing body through threads arranged on the inner surface of the bottom, a groove is formed in the outer surface of the top of the deodorizing upper cover, the deodorizing upper cover is in threaded connection with a buckle at the bottom end of the coupling nut, and the counter basin drainer is connected with the deodorizing device through the coupling nut; the top of the telescopic sewer pipe is clamped with the bottom of the deodorization device, and the deodorization rubber sleeve is used for connecting the sewer pipe.

The drainage device in the scheme has the advantages of deodorization, firm connection and the like, but has the problem that surface sewage cannot be effectively discharged, water accumulation is easy to occur, and the drainage device is required to be additionally installed.

Disclosure of Invention

The utility model aims to solve the problems and provide a deodorizing and sewer connecting device.

Another object of the utility model is to provide a floor drain.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the deodorizing and draining connecting device comprises a draining main pipe, wherein the draining main pipe comprises a water inlet section for externally connecting water inlet and a water outlet section for being inserted into a drainer, the water inlet section is provided with at least one water inlet, and the water outlet section is provided with a water outlet; the secondary downcomer sets up in the opening part of drainer, secondary downcomer top be drainage entry, the bottom is equipped with deodorant structure, the play water section external diameter of the downpipe be less than the internal diameter of secondary downcomer, the play water section outside be equipped with at least one protruding muscle, the downpipe be responsible for and insert the intraductal tight fit of formation of secondary downcomer, work as the play water section of downpipe insert in the secondary downcomer, play water section outer wall and secondary downcomer inner wall between form secondary drainage channel.

The water inlet section of the main sewer pipe is used for externally connecting water inlet, such as a water outlet pipe of an external washing machine, the water outlet section is used for being inserted into the water inlet sewer, a secondary sewer pipe is arranged at the opening of the sewer, the water outlet section can be clamped into the secondary sewer pipe through a convex rib arranged on the outer side to form tight fit, and a secondary drainage channel is formed between the outer wall of the water outlet section and the inner wall of the secondary sewer pipe due to the fact that a height difference is formed between the convex rib and the outer side of the water outlet section, so that sewage outside the sewer pipe can flow into the secondary sewer pipe through the secondary drainage channel, the sewage flows into the secondary sewer pipe through a water inlet of the water inlet section or the secondary drainage channel and flows into the sewer pipe, and the odor-resistant structure positioned at the bottom of the secondary sewer pipe can isolate odor in the sewer pipe from being flushed back into the secondary sewer pipe.

In the deodorizing drain connecting device, the outer wall of the secondary drain pipe is provided with a circumferential sealing ring which can seal the secondary drain pipe and the drainer.

The circumferential sealing ring is used for ensuring the sealing between the secondary sewer pipe and the sewer when the secondary sewer pipe is inserted into the sewer, so as to prevent the sewer pipe from being deodorized.

In the deodorizing and sewer connecting device, a hanging table is arranged at the top of the secondary sewer pipe, and the outer diameter of the hanging table is larger than that of the secondary sewer pipe.

The hanging table can prevent the secondary sewer pipe from falling off.

In the deodorizing and draining connecting device, the end face sealing gasket is arranged at the bottom of the hanging table.

The end face sealing gasket has the function of realizing end face sealing on one side of the secondary sewer pipe contacted with the sewer, further preventing the sewer from being deodorized, and the end face sealing gasket can further realize sealing through the end face sealing if the sealing effect of the circumferential sealing ring is poor because the interface of the sewer is possibly in a thread or other non-planar shape.

In the deodorizing and draining connecting device, the end face sealing gasket and the circumferential sealing ring are integrated.

In the deodorizing and sewer connecting device, the deodorizing structure comprises a conical section which is arranged at the bottom section of the secondary sewer pipe and is conical downwards, the outer diameter of the upper end of the conical section is larger than that of the lower end of the conical section, a yielding space is formed at the outer shell of the conical section, and a water outlet of the conical section is connected with a turning plate used for sealing through a turning connecting piece arranged in the yielding space.

The space of stepping down of toper section shell department can avoid turning over the board and producing the interference between the sewer pipe inner wall when overturning.

In the deodorizing and sewer connecting device, the overturning connecting piece comprises two rotating shaft fixing plates vertically arranged on the abdication space, the rotating shaft fixing plates are provided with rotating shafts, the overturning plates are rotationally connected with the rotating shafts through rotating grooves arranged at the bottom, and the upper parts of the overturning plates taking the rotating shafts as dividing lines are provided with balancing weights.

When sewage flows to the place where the sewage is inconsistent with the turning plate, the turning plate receives the impact force of sewage, the clockwise turns down, the rotating groove at the bottom of the turning plate rotates in the rotating shaft, and when the sewage quantity is large, the sewage flows to drive the turning plate to continue turning over to further enlarge the passing area of sewage, the drainage efficiency is improved, when the turning plate is in a vertical state, the water outlet of the conical section is in a complete opening state, after the sewage is emptied in the conical section, the balancing weight can reset and seal the water outlet of the conical section by utilizing self gravity, so that odor cannot recoil.

In the deodorizing and draining connecting device, the water inlet section is a multi-way pipe, and the multi-way pipe can be respectively connected with various pipe joints in an inserting or threaded mode.

The water inlet section is a multi-way pipe which can be connected with various pipe joints, and the universality is strong.

In the deodorizing and draining connecting device, the water inlet section is provided with the loose joint connector, the outer side of the loose joint connector is provided with the annular groove, the annular groove is internally provided with the loose joint sealing ring, and the loose joint connector is inserted into the water inlet of the water inlet section to realize circumferential rotation.

The loose joint can realize sealing and circumferential rotation, so that applicability of the loose joint is improved.

In the deodorizing and draining connecting device, the draining main pipe is also provided with a draining device replacing cover, and the draining device replacing cover is provided with a draining hole.

The drainer replacement cover and the drainer are arranged in a separable manner, so that the applicability is high, the drainer replacement cover is provided with a drain hole, and sewage outside the drainer can flow to the secondary drainage channel through the drain hole and flow into the secondary drain pipe.

In the deodorization sewer connecting device, the turnover connecting piece comprises two rotating shaft fixing plates vertically arranged on the yielding space, the turnover plate is made of elastic silica gel materials, the tail part of the turnover plate is provided with a clamping part, the rotating shaft fixing plate is provided with a clamping shaft capable of fixing the clamping part in the yielding space, the clamping shaft is provided with a clamping groove matched with the clamping part, and a turnover groove is formed between the turnover plate and the clamping part.

The clamping part of the turning plate is clamped with the clamping groove on the clamping shaft, the clamping part of the turning plate is fixed in the yielding space through the clamping shaft, the turning plate is impacted by water flow to downwards turn over, the setting of the turning groove plays the yielding role, a little turning space is provided for turning the turning plate, the turning plate is enabled to be turned over better, and due to the elastic effect of the turning plate, when no water flow exists in the pipe body, the turning plate automatically resets.

The floor drain comprises a floor drain shell, wherein a water outlet is formed in the bottom of the floor drain shell, a floor drain cover body is arranged on the floor drain, and a floor drain water outlet and a plugging hole for plugging a water outlet main pipe are formed in the floor drain cover body; the secondary sewer pipe is hung on a sewer outlet of the floor drain, and a water outlet section of the sewer main pipe passes through the plug hole and is in close fit connection with the inner wall of the secondary sewer pipe.

The sewer main pipe is inserted into the inserting hole of the floor drain cover body, the water outlet section of the sewer main pipe is clamped into the secondary sewer pipe to form a secondary drainage channel, sewage at the floor drain cover body can flow to the secondary drainage channel through the floor drain sewer hole and flow into the secondary sewer pipe, sewage in various pipe joints externally connected with the water inlet section and sewage at the floor drain cover body finally flow into the secondary sewer pipe to flow into the sewer pipe, and the turning plate and the circumferential sealing ring can isolate odor in the sewer pipe.

Compared with the prior art, the utility model has the advantages that: 1. the water inlet end of the main sewer pipe is a multi-way pipe with strong universality, and the connectable loose joint can realize sealing and circumferential rotation, so that the applicability of the main sewer pipe is improved. 2. Not only firmly connected with an external drain pipe, but also can drain the sewage outside the drainer, can not produce ponding and does not need to additionally arrange a floor drain device. 3. Can completely block odor from the sewer pipe, and has excellent sealing performance.

Drawings

FIG. 1 is an exploded schematic view of the overall structure provided by the present utility model;

FIG. 2 is a cross-sectional view provided by the present utility model;

FIG. 3 is an exploded cross-sectional view of the overall structure;

FIG. 4 is a top view of the floor drain;

FIG. 5 is a schematic view of the structure of the flip cover;

fig. 6 is a schematic structural diagram of the flip-over connector in the second embodiment.

In the figure, a main sewer pipe 1, a water inlet section 2, a water outlet section 3, a water inlet 4, a water outlet 5, a secondary sewer pipe 6, a drain inlet 7, a deodorizing structure 8, a convex rib 9, a secondary drain channel 10, a circumferential sealing ring 11, a hanging table 12, an end surface sealing gasket 13, a conical section 14, a yielding space 15, a turnover connecting piece 16, a turnover plate 17, a rotating shaft fixing plate 18, a rotating shaft 19, a rotating groove 20, a balancing weight 21, a multi-way pipe 22, a movable joint 23, an annular groove 24, a sewer replacement cover 25, a sewer hole 26, a floor drain shell 27, a sewer hole 28, a floor drain cover 29, a plug hole 30, a floor drain sewer hole 31, a clamping part 32, a clamping shaft 33 and a turnover groove 34.

Detailed Description

Example 1

As shown in fig. 1-3, the deodorizing and draining connecting device comprises a draining main pipe 1, wherein the draining main pipe 1 comprises a water inlet section 2 for externally connecting water inlet and a water outlet section 3 for being inserted into a drainer, the water inlet section 2 is provided with at least one water inlet 4, and the water outlet section 3 is provided with a water outlet 5; the secondary downcomer 6 sets up in the opening part of drainer, secondary downcomer 6 top be drainage entry 7, the bottom is equipped with deodorant structure 8, the play water section 3 external diameter of the downpipe 1 be less than the internal diameter of secondary downcomer 6, play water section 3 outside be equipped with at least one protruding muscle 9, the downpipe be responsible for 1 insert and form tight fit in the secondary downcomer 6, work as the play water section 3 of downpipe 1 insert in the secondary downcomer 6, play water section 3 outer wall and secondary downcomer 6 inner wall between form secondary drainage channel 10.

In the utility model, the water inlet section 2 of the main sewer pipe 1 is used for externally connecting water inlet, such as a water outlet pipe of an externally connected washing machine, the water outlet section 3 is used for being inserted into the sewer, a secondary sewer pipe 6 is arranged at the opening of the sewer, the water outlet section 3 can be clamped into the secondary sewer pipe 6 through a convex rib 9 arranged on the outer side to form tight fit, and a secondary drainage channel 10 is formed between the outer wall of the water outlet section 3 and the inner wall of the secondary sewer pipe 6 due to the height difference between the convex rib 9 and the outer side of the water outlet section 3, so that sewage outside the sewer can flow into the secondary sewer pipe 6 through the secondary drainage channel 10, the sewage flows into the secondary sewer pipe 6 through the water inlet 4 of the water inlet section 2 or the secondary drainage channel 10, and the odor-resistant structure 8 positioned at the bottom of the secondary sewer pipe 6 can prevent odor in the sewer pipe from flowing back into the secondary sewer pipe 6.

Specifically, as shown in fig. 1 to 3, the outer wall of the secondary downcomer 6 is provided with a circumferential seal 11 for sealing the secondary downcomer 6 from the drainer.

The circumferential sealing ring 11 is used for ensuring the sealing between the secondary sewer pipe 6 and the sewer when the secondary sewer pipe 6 is inserted into the sewer, so as to prevent the sewer pipe from being deodorized.

Specifically, as shown in fig. 1-3, a hanging table 12 is arranged at the top of the secondary sewer pipe 6, the outer diameter of the hanging table 12 is larger than that of the secondary sewer pipe 6, an end face sealing gasket 13 is arranged at the bottom of the hanging table 12, and the end face sealing gasket 13 and the circumferential sealing ring 11 are integrated.

The hanging table 12 can prevent the secondary sewer pipe 6 from falling, the end face sealing gasket 13 has the function of realizing end face sealing on one side of the secondary sewer pipe 6 contacted with the sewer, further preventing the sewer pipe from being deodorized, and the interface of the sewer is possibly threads or other non-planar shapes, so that if the sealing effect of the circumferential sealing ring 11 is poor, the sealing can be further realized through the end face sealing.

Specifically, referring to fig. 1, 2, 3 and 5, the deodorizing structure 8 includes a tapered section 14 disposed at the bottom section of the secondary sewer pipe 6 and tapered downward, the outer diameter of the upper end of the tapered section 14 is larger than that of the lower end of the tapered section 14 to form a yielding space 15 at the outer shell of the tapered section 14, and the water outlet of the tapered section 14 is connected with a flap 17 for sealing through a turnover connector 16 disposed in the yielding space 15.

The space 15 for giving way at the outer shell of the conical section 14 can avoid interference with the inner wall of the sewer pipe when the turnover plate 17 turns over.

Specifically, referring to fig. 1, 2, 3 and 5, the turnover connecting piece 16 includes two rotating shaft fixing plates 18 vertically disposed on the yielding space 15, the rotating shaft fixing plates 18 are provided with rotating shafts 19, the turnover plate 17 is rotatably connected with the rotating shafts 19 through rotating grooves 20 disposed at the bottom, and a balancing weight 21 is disposed on an upper portion of the turnover plate 17 taking the rotating shafts 19 as a boundary line.

When sewage flows to the place where the sewage is in conflict with the turning plate 17, the turning plate 17 receives the impact force of the sewage, the turning plate turns downwards in a homeopathy, the rotating groove 20 at the bottom of the turning plate 17 rotates on the rotating shaft 19, and when the sewage quantity is large, the sewage flow can drive the turning plate 17 to continue turning over to further enlarge the passing area of the sewage, the drainage efficiency is improved, when the turning plate 17 is in a vertical state, the water outlet of the conical section 14 is in a complete opening state, and after the sewage is emptied in the conical section 14, the balancing weight 21 can reset and seal the water outlet of the conical section 14 by utilizing self gravity, so that odor cannot recoil.

Specifically, as shown in fig. 1-4, the water inlet section 2 is a multi-way pipe 22, and the multi-way pipe 22 can be respectively connected with various pipe joints in a plugging or threaded manner.

The water inlet section 2 is a multi-way pipe 22 which can be connected with various pipe joints, and the universality is strong.

Preferably, as shown in fig. 1-4, the water inlet section 2 is provided with a loose joint 23, an annular groove 24 is arranged at the outer side of the loose joint 23, a loose joint sealing ring is arranged in the annular groove 24, and the loose joint 23 is inserted into the water inlet 4 of the water inlet section 2 to realize circumferential rotation.

The loose joint 23 can realize both sealing and circumferential rotation, thereby improving the applicability thereof.

Specifically, as shown in fig. 1-4, the main sewer pipe 1 is further provided with a drainer replacing cover 25, and the drainer replacing cover 25 is provided with a sewer hole 26.

The drainer replacement cover 25 and the drainer are detachably arranged, so that the applicability is high, the drainer replacement cover 25 is provided with the drain hole 26, and sewage outside the drainer can flow to the secondary drainage channel 10 through the drain hole 26 and flow into the secondary drain pipe 6.

The floor drain comprises a floor drain shell 27, wherein a water drain port 28 is arranged at the bottom of the floor drain shell 27, a floor drain cover body 29 is arranged on the floor drain, and a floor drain water drain hole 31 and a plug hole 30 for plugging a water drain main pipe 1 are arranged on the floor drain cover body 29; the secondary sewer pipe 6 is hung on a sewer port 28 of the floor drain, and the water outlet section 3 of the sewer main pipe 1 passes through the plug hole 30 to be in close fit connection with the inner wall of the secondary sewer pipe 6.

The sewer main pipe 1 is inserted into the inserting hole 30 of the floor drain cover 29, the water outlet section 3 of the sewer main pipe 1 is clamped into the secondary sewer pipe 6 to form a secondary drainage channel 10, sewage at the floor drain cover 29 can flow to the secondary drainage channel 10 through the floor drain sewer hole 31 and flow into the secondary sewer pipe 6, sewage in various pipe joints externally connected with the water inlet section 2 and sewage at the floor drain cover 29 finally flow into the secondary sewer pipe 6 to flow into the sewer pipe, and the turning plate 17 and the circumferential sealing ring 11 can isolate odor in the sewer pipe.

The working principle of the utility model is as follows: the water inlet section 2 of the main sewer pipe 1 is used for externally connecting water inlet, such as a water outlet pipe of an external washing machine, the water outlet section 3 is used for being inserted into the water inlet sewer, a secondary sewer pipe 6 is arranged at the opening of the water inlet sewer, the water outlet section 3 can be clamped into the secondary sewer pipe 6 through a convex rib 9 arranged on the outer side to form tight fit, and a secondary drainage channel 10 is formed between the outer wall of the water outlet section 3 and the inner wall of the secondary sewer pipe 6 due to the height difference between the convex rib 9 and the outer side of the water outlet section 3, so that sewage outside the water inlet section 2 and the secondary sewer pipe 6 can flow into the secondary sewer pipe 6 through the secondary drainage channel 10, the sewage flows into the secondary sewer pipe 6 through the water inlet 4 of the water inlet section 2 or the secondary drainage channel 10, and the odor-resistant structure 8 positioned at the bottom of the secondary sewer pipe 6 can isolate odor in the sewer pipe from flowing back into the secondary sewer pipe 6 and flowing into a room;

the circumferential sealing ring 11 is used for ensuring the sealing between the secondary sewer pipe 6 and the sewer when the secondary sewer pipe 6 is inserted into the sewer, so as to prevent the sewer pipe from being deodorized;

the hanging table 12 can prevent the secondary sewer pipe 6 from falling off; the end face sealing gasket 13 has the function of realizing end face sealing on the side, which is contacted with the drainer, of the secondary sewer pipe 6, further preventing the sewer pipe from being deodorized, and as the interface of the drainer can be in a thread or other non-planar shape, if the sealing effect of the circumferential sealing ring 11 is poor, the sealing can be further realized through the end face sealing;

the abdication space 15 at the outer shell of the conical section 14 can avoid interference between the turnover plate 17 and the inner wall of the sewer pipeline when the turnover plate is turned over;

when sewage flows to the position where the sewage is in conflict with the turning plate 17, the turning plate 17 is subjected to the impact force of the sewage, the sewage is turned downwards in a clockwise direction, the rotating groove 20 at the bottom of the turning plate 17 rotates on the rotating shaft 19, and when the sewage amount is large, the sewage flow can drive the turning plate 17 to continuously turn over to further enlarge the passing area of the sewage, so that the drainage efficiency is improved, when the turning plate 17 is in a vertical state, the water outlet of the conical section 14 is in a fully opened state, and after the sewage is emptied in the conical section 14, the balancing weight 21 can reset and seal the water outlet of the conical section 14 by utilizing the gravity of the balancing weight 21, so that odor cannot recoil;

the water inlet section 2 is a multi-way pipe 22 which can be connected with various pipe joints, so that the universality is strong;

the loose joint 23 can realize sealing and circumferential rotation, so that the applicability of the loose joint is improved;

the drainer replacement cover 25 and the drainer are arranged in a separable manner, so that the applicability is high, a drainer hole 26 is formed in the drainer replacement cover 25, and sewage outside the drainer can flow to the secondary drainage channel 10 through the drainer hole 26 and flow into the secondary drainage pipe 6;

the sewer main pipe 1 is inserted into the inserting hole 30 of the floor drain cover 29, the water outlet section 3 of the sewer main pipe 1 is clamped into the secondary sewer pipe 6 to form a secondary drainage channel 10, sewage at the floor drain cover 29 can flow to the secondary drainage channel 10 through the floor drain sewer hole 31 and flow into the secondary sewer pipe 6, sewage in various pipe joints externally connected with the water inlet section 2 and sewage at the floor drain cover 29 finally flow into the secondary sewer pipe 6 to flow into the sewer pipe, and the turning plate 17 and the circumferential sealing ring 11 can isolate odor in the sewer pipe.

Example two

As shown in fig. 6, the structure and working principle of the present embodiment are basically the same as those of the first embodiment, except that the turnover connecting piece 16 includes two rotating shaft fixing plates 18 vertically disposed on the abdication space 15, the turnover plate 17 is made of elastic silica gel material, the tail portion of the turnover plate 17 is provided with a clamping portion 32, the rotating shaft fixing plates 18 are provided with clamping shafts 33 capable of fixing the clamping portion 32 in the abdication space 15, the clamping shafts 33 are provided with clamping grooves adapted to the clamping portion 32, and turnover grooves 34 are disposed between the turnover plate 17 and the clamping portion 32.

The clamping part 32 of the turning plate 17 is clamped with the clamping groove on the clamping shaft 33, the clamping part 32 of the turning plate 17 is fixed in the yielding space 15 through the clamping shaft 33, the turning plate 17 is impacted by water flow to turn downwards, the overturning groove 34 plays a yielding role, a little overturning space is provided for turning the turning plate, the turning plate 17 can be turned better, and due to the elastic effect of the turning plate 17, when no water flow exists in the pipe body, the turning plate automatically resets.

The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.

Although the main sewer pipe 1, the water inlet section 2, the water outlet section 3, the water inlet 4, the water outlet 5, the secondary sewer pipe 6, the water drain inlet 7, the deodorization structure 8, the ribs 9, the secondary water drain passage 10, the circumferential seal ring 11, the hanging table 12, the end face seal gasket 13, the tapered section 14, the relief space 15, the flip connection piece 16, the flip plate 17, the rotation shaft fixing plate 18, the rotation shaft 19, the rotation groove 20, the weight 21, the multi-way pipe 22, the loose joint 23, the annular groove 24, the drainer replacement cover 25, the sewer hole 26, the floor drain housing 27, the sewer hole 28, the floor drain cover 29, the plug hole 30, the floor drain sewer hole 31, the clip connection portion 32, the clip connection shaft 33, the flip groove 34, and the like are used herein for convenience only to describe and explain the essence of the present utility model; they are to be interpreted as any additional limitation that is not inconsistent with the spirit of the present utility model.

Claims (12)

1. The deodorizing and draining connecting device is characterized by comprising a draining main pipe (1), wherein the draining main pipe (1) comprises a water inlet section (2) for externally connecting water inlet and a water outlet section (3) for being inserted into a drainer, the water inlet section (2) is provided with at least one water inlet (4), and the water outlet section (3) is provided with a water outlet (5); the secondary downcomer (6) is arranged at the opening of the drainer, the top of the secondary downcomer (6) is a drainage inlet (7), a deodorizing structure (8) is arranged at the bottom of the secondary downcomer, the outer diameter of a water outlet section (3) of the main sewer pipe (1) is smaller than the inner diameter of the secondary downcomer (6), and when the water outlet section (3) of the main sewer pipe (1) is inserted into the secondary downcomer (6), a secondary drainage channel (10) is formed between the outer wall of the water outlet section (3) and the inner wall of the secondary downcomer (6).

2. The deodorization sewer connecting device according to claim 1, wherein at least one convex rib (9) is arranged on the outer side of the water outlet section (3), and the sewer main pipe (1) is inserted into the secondary sewer pipe (6) to form tight fit.

3. The deodorizing drain connection device according to claim 1 or 2, characterized in that the outer wall of the secondary drain pipe (6) is provided with a circumferential sealing ring (11) for sealing the secondary drain pipe (6) from the drainer.

4. The deodorizing drain connection device according to claim 3, wherein a hanging table (12) is arranged at the top of the secondary drain pipe (6), and the outer diameter of the hanging table (12) is larger than that of the secondary drain pipe (6).

5. The deodorization sewer connecting device according to claim 4, wherein an end face sealing gasket (13) is arranged at the bottom of the hanging table (12); the end face sealing gasket (13) and the circumferential sealing ring (11) are integrated.

6. The deodorization sewer connecting device according to claim 1, characterized in that the deodorization structure (8) comprises a conical section (14) which is arranged at the bottom section of the secondary sewer pipe (6) and is conical downwards, the outer diameter of the upper end of the conical section (14) is larger than that of the lower end of the conical section (14) to form a yielding space (15) at the outer shell of the conical section (14), and a water outlet of the conical section (14) is connected with a turning plate (17) for sealing through a turning connecting piece (16) arranged in the yielding space (15).

7. The deodorizing and sewer connecting device according to claim 6, wherein the turnover connecting piece (16) comprises two rotating shaft fixing plates (18) vertically arranged on the abdication space (15), the rotating shaft fixing plates (18) are provided with rotating shafts (19), the turnover plates (17) are rotationally connected with the rotating shafts (19) through rotating grooves (20) arranged at the bottom, and balancing weights (21) are arranged on the upper parts of the turnover plates (17) taking the rotating shafts (19) as dividing lines.

8. The deodorizing and sewer connecting device according to claim 1, characterized in that the water inlet section (2) is a multi-way pipe (22), and the multi-way pipe (22) can be respectively connected with various pipe joints in a plugging or threaded manner.

9. The deodorizing and sewer connecting device according to claim 8, characterized in that the water inlet section (2) is provided with a loose joint (23), an annular groove (24) is arranged on the outer side of the loose joint (23), a loose joint sealing ring is arranged in the annular groove (24), and the loose joint (23) is inserted into the water inlet (4) of the water inlet section (2) to realize circumferential rotation.

10. The deodorizing and draining connecting device according to claim 1, characterized in that the draining main pipe (1) is further provided with a draining device replacing cover (25), and the draining device replacing cover (25) is provided with a draining hole (26).

11. The odor-resistant sewer connecting device according to claim 6, wherein the turnover connecting piece (16) comprises two rotating shaft fixing plates (18) vertically arranged on the abdication space (15), the turnover plate (17) is made of elastic silica gel materials, the tail part of the turnover plate (17) is provided with a clamping part (32), the rotating shaft fixing plates (18) are provided with clamping shafts (33) capable of fixing the clamping part (32) in the abdication space (15), the clamping shafts (33) are provided with clamping grooves matched with the clamping parts (32), and turnover grooves (34) are formed between the turnover plate (17) and the clamping parts (32).

12. A floor drain using the connecting device according to claim 1, comprising a floor drain shell (27), wherein the bottom of the floor drain shell (27) is provided with a water outlet (28), the floor drain is provided with a floor drain cover body (29), and the floor drain cover body (29) is provided with a floor drain water outlet (31) and a plug hole (30) for plugging a water outlet main pipe (1); the secondary sewer pipe (6) is hung on a sewer outlet (28) of the floor drain, and the water outlet section (3) of the sewer main pipe (1) passes through the plug hole (30) to be in close fit connection with the inner wall of the secondary sewer pipe (6).