CN218894158U - Deodorization drainer - Google Patents

Abstract

The utility model belongs to the technical field of drainage pipelines, and particularly relates to a deodorizing drainer. Comprises a main body, wherein a channel for fluid to pass through is arranged in the main body; an elastic deodorizing cover installed under the main body; the two sides of the lower part of the elastic deodorization sleeve are mutually clung to form a lower sealing part so as to seal the channel; the lower seal portion is openable under pressure of a quantity of fluid and is reset after the fluid passes; an auxiliary sleeve which is in threaded connection with the periphery of the main body, can move up and down along the main body and is positioned; and the outer ring is arranged at the lower part of the main body and protrudes outwards under the pressing force of the auxiliary sleeve. The utility model aims to provide a deodorizing drainer with a simple structure, a good sealing effect and a good deodorizing effect.

Description

Deodorization drainer

Technical Field

The utility model belongs to the technical field of drainage pipelines, and particularly relates to a deodorizing drainer.

Background

Drain openings are usually arranged on the ground of various places such as a kitchen, a bathroom, a balcony and the like, and are important interfaces for connecting a drainage pipeline system with an indoor basin water outlet pipe. The existing counter basin is generally provided with a corrugated pipe at the water outlet thereof as a water outlet pipe, and the corrugated pipe is inserted into the water outlet to be connected with a drainage pipeline system, so that water flow is promoted to enter the drainage pipeline system to drain water.

If the corrugated pipe is directly inserted, as the sealing structure is not arranged between the corrugated pipe and the sewer port, the corrugated pipe is easy to fall out when the water flow is large, and odor and bacteria in the drainage pipeline system are easy to overflow from a gap between the sewer port and the corrugated pipe, so that the indoor environment is influenced.

Disclosure of Invention

The utility model aims to provide a deodorizing drainer with a simple structure, a good sealing effect and a good deodorizing effect.

The purpose of the utility model is realized in the following way:

a deodorizing drainer comprises

A main body in which a passage through which a fluid passes is formed;

an elastic deodorizing cover installed under the main body; the two sides of the lower part of the elastic deodorization sleeve are mutually clung to form a lower sealing part so as to seal the channel; the lower seal portion is openable under pressure of a quantity of fluid and is reset after the fluid passes;

an auxiliary sleeve which is in threaded connection with the periphery of the main body, can move up and down along the main body and is positioned;

and the outer ring is arranged at the lower part of the main body and protrudes outwards under the pressing force of the auxiliary sleeve.

Further, an outer abutment is provided at the lower part of the main body; the outer peripheral side of the main body is provided with a step part, and the step part is positioned at the lower side of the auxiliary sleeve; the outer ring is sleeved outside the main body and is positioned on the upper side of the step part; when the auxiliary sleeve moves downwards, the outer ring is extruded by the auxiliary sleeve and the step part to protrude outwards;

the outer abutting platform is integrally formed with or separately connected with the main body;

the specific structure of the split connection of the outer abutting table and the main body is as follows: the lower part of the main body is in threaded connection or is clamped or adhered with a first locking piece, the outer diameter of the first locking piece is larger than that of the lower side of the main body, and the outer abutting table is formed;

the lower part of the outer abutting table is also provided with a second locking piece, and the elastic deodorizing sleeve is pressed between the outer abutting table and the second locking piece.

Is further arranged to further comprise

The first locking piece is sleeved below the main body;

the second locking piece is sleeved below the first locking piece, and the elastic deodorizing sleeve is pressed between the first locking piece and the second locking piece.

The outer ring is further provided with a limiting groove formed between the outer ring and the side wall of the main body, a limiting block capable of being embedded into the limiting groove is formed at the bottom of the auxiliary sleeve, and the outer ring can be outwards spread after the limiting block is embedded into the limiting groove; the outer side wall of the limiting groove forms a first inclined plane, the periphery of the lower side of the limiting block forms a second inclined plane, and the second inclined plane slides along the first inclined plane and stretches the outer ring outwards.

The outer ring is further provided with an outer step formed on the lower side of the outer ring, the lower end of the first locking piece is provided with an outer abutting table corresponding to the outer step, and the outer step is pressed on the outer abutting table.

It is further provided that the first and second support means are arranged,

the side part of the main body is provided with a plurality of side water inlets;

the upper part of the main body is provided with a main water inlet;

the inside of the main body is provided with a partition for separating water flowing in from the side water inlet and the main water inlet.

The partition part further comprises a ring sleeve part formed by extending the inner end part of the main water inlet downwards, and the lower port of the ring sleeve part is contracted inwards to form a diameter-reducing part; the annular sleeve part extends downwards to the middle part of the side water inlet; a flow blocking cavity is formed between the lower end of the annular sleeve part and the inner wall of the main body.

The water inlet is characterized in that the outer end of the main water inlet extends upwards to form a limiting part, an upper locking piece is arranged on the outer side of the limiting part, a sealing ring is arranged on the inner side of the limiting part, the upper end of the sealing ring is abutted to the upper locking piece, the lower end of the sealing ring stretches into the limiting part, and a step which is abutted to the lower end face of the sealing ring is formed on the inner side of the limiting part.

The sealing ring is a conical sealing ring, and the outer diameter of the upper end of the sealing ring is larger than that of the lower end of the sealing ring; the outer end of the upper locking piece is provided with an annular boss in a forming mode, and the upper end face of the sealing ring is propped against the inner end face of the annular boss; the limiting part is provided with a third inclined plane in a port, a fourth inclined plane is arranged on the periphery of the sealing ring, and the degree of an included angle formed by the third inclined plane and the axis of the main body is larger than that formed by the fourth inclined plane and the axis of the main body.

The water inlet is further arranged in a way that the water inlet is externally connected with a water inlet joint assembly; the water inlet joint assembly comprises more than one tee joint and/or elbow joints;

the three-way joint and/or the elbow joint are/is provided with a pipeline joint, the pipeline joint is in a ladder shape so as to adapt to the end parts of external pipelines with different calibers, and a rubber ring is arranged on the ladder surface of the pipeline joint.

The outer part of the pipeline joint is detachably sleeved with a rubber sleeve, and the rubber sleeve is arranged on the outer side of the step surface; the outer surface of the rubber sleeve is provided with a plurality of layers of rubber rings, and the outer diameter of each rubber ring is gradually increased from outside to inside; or, the pipeline joint is a quick joint.

Compared with the prior art, the utility model has the following outstanding and beneficial technical effects:

1. the elastic deodorization sleeve is arranged on the main body, the main body is used for connecting the elastic deodorization sleeve with the sewer pipe or the corrugated pipe of the counter basin, the sealing effect is better than that of a mode that the sewer pipe directly stretches into the sewer opening, and meanwhile, the lower sealing part of the elastic deodorization sleeve can be opened for draining when water flow impacts; when the water flow is discharged, the lower sealing part is reset to be in a closed state when no external force is applied, so that the odor is effectively prevented from overflowing, and the deodorizing device has a good deodorizing effect.

2. According to the utility model, the auxiliary sleeve is arranged on the main body to enable the outer ring of the elastic deodorizing sleeve to deform, so that the elastic deodorizing sleeve can be outwards propped against the sewer opening or the mounting panel, the joint of the main body and the sewer opening is sealed, the odor is better prevented from overflowing from the joint of the main body and the sewer opening, and the deodorizing effect is better.

3. According to the utility model, the first inclined surface is formed on the outer side wall of the limiting groove, the second inclined surface is formed on the outer side of the lower side of the limiting block, and when the second inclined surface slides along the first inclined surface, the downward sliding trend is converted into the deformation trend of outwards expanding the outer ring of the elastic deodorizing sleeve, so that the elastic deodorizing sleeve and the water outlet are sealed.

4. According to the elastic deodorizing sleeve, the limiting groove for inserting the limiting block is formed between the outer ring and the main body, when the limiting block is clamped into the limiting groove, the outer ring expands outwards to drive the first locking piece and the second locking piece to mutually cooperate to press the elastic deodorizing sleeve, so that the elastic deodorizing sleeve is well prevented from falling off, and the stability of the connecting structure is enhanced.

5. The first locking piece and the second locking piece which are used for connecting the elastic deodorization sleeve with the main body are arranged at the bottom of the main body, and the limiting block is embedded into the limiting groove to drive the first locking piece and the second locking piece to mutually cooperate to press the elastic deodorization sleeve, so that the installation firmness of the elastic deodorization sleeve is enhanced, and the elastic deodorization sleeve is prevented from falling under long-time fluid flushing.

6. The upper locking piece is sleeved above the main body, the sealing ring is arranged on the inner side of the limiting part, the upper end of the sealing ring is abutted against the upper locking piece, the lower end of the sealing ring stretches into the limiting part, the main water inlet is used for being connected with the water outlet pipe (corrugated pipe) of the counter basin, after the water outlet pipe is inserted into the limiting part, the upper locking piece is operated to push the sealing ring downwards, as the step abutted against the lower end face of the sealing ring is formed on the inner side of the limiting part, the sealing ring cannot move downwards and deforms and expands towards two sides, so that a gap between the water outlet pipe and the limiting part is sealed, the connection tightness of the water outlet pipe and the separating part is enhanced, and the connection tightness of the water outlet pipe and the main body is enhanced.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

Fig. 2 is a front cross-sectional view of the present utility model.

Fig. 3 is a cross-sectional view of the present utility model.

Fig. 4 is a partial enlarged view at a of fig. 3.

Fig. 5 is a partial enlarged view at B of fig. 3.

Fig. 6 is a partial enlarged view at C of fig. 3.

Fig. 7 is a cross-sectional view of the elastic deodorizing cover according to embodiment 2 of the present utility model.

Reference numerals illustrate: 1-a main body; 100-channel; 200-side water inlet; 300-main water inlet; 2-an elastic deodorization sleeve; 20-flow channels; 21-transition slope; 22-a lower seal; 3-auxiliary sleeve; 31-limiting blocks; 32-a second bevel; 4-a first locking member; 41-an outer abutment; 5-an outer ring; 51-a limit groove; 52-a first incline; 53-outer steps; 6-a second locking member; 7-a partition; 71-a collar portion; 72-reducing part; 73-a flow blocking cavity; 8-a limiting part; 81-steps; 82-a third ramp; 9-upper locking piece; 91-an annular boss; 10-sealing rings; 101-a fourth incline; 11-elbow joints; 111-quick connector; 12-a three-way joint; 121-a pipe joint; 1211-a rubber ring; 1212-rubber sleeve; 13-water inlet joint assembly.

Detailed Description

The utility model will be further described in the following, in particular embodiments, with reference to figures 1-7;

example 1:

a deodorizing drainer comprises

A main body 1, in which a channel 100 for fluid to pass through is formed, and the upper end of the channel 100 is used for connecting a water outlet pipe or a corrugated pipe of a basin;

the elastic deodorizing sleeve 2 is arranged on the lower side of the main body 1, when the elastic deodorizing sleeve 2 is arranged on the main body 1, two sides of the lower part of the elastic deodorizing sleeve 2 are mutually clung to form a lower sealing part 22 under the action of stress and tension and extend into a drainage pipeline, water flow in the water outlet pipe flows through a channel 100 of the main body 1 and then is discharged into the drainage pipeline, and the lower sealing part 22 keeps a closed state when not subjected to external force, and the channel 100 is blocked to prevent peculiar smell from overflowing and being reversed; when fluid is introduced, the lower sealing part 22 can be opened under the pressure of a certain amount of fluid, so that water is discharged;

an auxiliary sleeve 3 screwed to the outer circumference of the main body 1, the auxiliary sleeve 3 being movable up and down along the main body 1 and positioned; the outer side wall of the limiting groove 51 forms a first inclined surface 52, the outer side of the lower side of the limiting block 31 forms a second inclined surface 32, and the second inclined surface 32 slides along the first inclined surface 52 and stretches the outer ring 5 outwards. During installation, the lower end of the elastic deodorization sleeve 2 stretches into a water outlet on the ground or a wall surface, then the elastic deodorization sleeve is driven to move along the axial direction by rotating the auxiliary sleeve 3, the lower end limiting block 31 is gradually embedded into the limiting groove 51, at the moment, the elastic deodorization sleeve 2 is extruded, the outer ring 5 is outwards spread and gradually and tightly abuts against the edge of the limiting block 31 and the water outlet, and therefore the deodorization drainer is installed at the water outlet. The elastic deodorizing sleeve 2 has certain elasticity and deformability, so that a good seal is formed between the sewer outlet and the main body 1, odor is prevented from overflowing from a gap between the sewer outlet and the main body 1, and deodorizing effect is enhanced.

An outer abutment 41 is provided at the lower part of the main body 1; the outer ring 5 is sleeved outside the main body and is positioned on the upper side of the step part; when the auxiliary sleeve 3 moves downwards, the outer ring 5 is extruded by the auxiliary sleeve 3 and the step part to protrude outwards;

the outer abutment 41 is integrally formed with or separately connected to the main body 1;

the specific structure of the external abutment 41 connected to the main body 1 in a split manner is: the lower part of the main body 1 is in threaded connection or clamped connection or is adhered with a first locking piece 4, the outer diameter of the first locking piece 4 is larger than the outer diameter of the lower side of the main body 1, and an outer abutting table 41 is formed;

a second locking piece 6 is arranged below the outer abutting table 41, and the elastic deodorizing cover 2 is pressed between the outer abutting table 41 and the second locking piece 6; the upper section of the elastic deodorizing sleeve 2 is connected with the lower sealing part 22 through a transition section, the upper section is a circular tube, the lower sealing part 22 is a flat tube, and the transition section is formed with a transition inclined plane 21 for connecting the circular tube and the flat tube. After the water flow rushes into the upper section of the elastic deodorization sleeve 2, the flat tube can be rushed out through the transition inclined plane 21, so that water is drained, and after the water flow is drained, the flat tube can be reset due to the elasticity of the elastic deodorization sleeve 2, so that the odor in the sewer pipe is prevented from overflowing from the elastic deodorization sleeve 2.

A limit groove 51 is formed between the outer ring 5 and the side wall of the main body 1, a limit block 31 which can be embedded into the limit groove 51 is formed at the bottom of the auxiliary sleeve 3, the outer ring 5 can be outwards opened after the limit block 31 is embedded into the limit groove 51, and the limit block 31 is embedded into the limit groove 51 to drive the first locking piece 4 and the second locking piece 6 to mutually cooperate to compress the elastic deodorization sleeve 2, so that the installation firmness of the elastic deodorization sleeve 2 is enhanced, and the elastic deodorization sleeve is prevented from falling under long-time fluid scouring; the outer side wall of the limiting groove 51 forms a first inclined surface 52, the lower periphery of the limiting block 31 forms a second inclined surface 32, the second inclined surface 32 slides along the first inclined surface 52 and outwards expands the outer ring 5, the outer ring 5 is abutted to the sewer outlet or the mounting panel, and the joint of the main body 1 and the sewer outlet is sealed.

An outer step 53 is formed on the lower side of the outer ring 5, an outer abutting table 41 is formed at the lower end of the first locking member 4 corresponding to the outer step 53, and the outer step 53 is pressed on the outer abutting table 41 to support the outer ring 5.

The side of the main body 1 is provided with a plurality of side water inlets 200, and water flows into the channel 100 from the side water inlets 200;

the upper part of the main body 1 is provided with a main water inlet 300, and water flows into the channel 100 from the upper main water inlet 300;

the inside of main part 1 is provided with partition portion 7 for the separation is from the water that side water inlet 200 and main water inlet 300 flowed in, and partition portion 7 outside part is threaded connection with main part 1, only when side pipeline and main pipe have water inflow simultaneously, partition portion 7 can play the effect of two water flows of separation, makes two water flows mutually noninterfere avoid causing the backward flow.

The partition part 7 comprises a ring sleeve part 71 formed by extending the inner end part of the main water inlet 300 downwards, and the lower end opening of the ring sleeve part 71 is contracted inwards to form a diameter reduction part 72; the collar portion 71 extends downward to a position two-thirds of the middle of the side inlet 200; a flow blocking cavity 73 is formed between the lower end of the ring sleeve part 71 and the inner wall of the main body 1, namely the space of the flow blocking cavity 73 is one third of the size of the side pipeline; when water flows into the annular sleeve part 71 from the main water inlet 300 and then flows into the channel 100 from the diameter-reduced part 72, because the annular sleeve part 71 extends downwards to two thirds of the side water inlet, and a flow blocking cavity 73 is formed between the lower part of the annular sleeve part 71 and the inner wall of the main body 1, at the moment, when the side water flows into the channel 100, the side water flows down along with the flow blocking cavity 73, and does not form backflow with the water flowing into the main water inlet 300, and the two do not interfere with each other.

The outer tip of main water inlet 300 upwards extends and forms spacing portion 8, spacing portion 8 and partition portion 7 are integrated into one piece, spacing portion 8 outside threaded connection has last retaining member 9, spacing portion 8 inboard is provided with sealing ring 10, sealing ring 10 upper end butt is in last retaining member 9, sealing ring 10 lower extreme stretches into spacing portion 8, spacing portion 8 inboard shaping has the step 81 of supporting to locate sealing ring 10 lower extreme face, sealing ring 10 can't move down, and can carry out deformation expansion to both sides, thereby seal the clearance between outlet pipe and the spacing portion 8, strengthen the compactness that outlet pipe and spacing portion 8 are connected, and then strengthen the compactness that outlet pipe and main part 1 are connected.

The sealing ring 10 is a conical sealing ring, and the outer diameter of the upper end of the sealing ring 10 is larger than that of the lower end; the outer end of the upper locking piece 9 is provided with an annular boss 91, and the upper end surface of the sealing ring 10 is propped against the inner end surface of the annular boss 91; the port of the limiting part 8 is provided with a third inclined plane 82, the periphery of the sealing ring 10 is provided with a fourth inclined plane 101, the degree of an included angle formed by the third inclined plane 82 and the axis of the main body 1 is larger than that formed by the fourth inclined plane 101 and the axis of the main body 1, so that a certain gap is formed between the third inclined plane 82 and the fourth inclined plane 101 in a natural state, and the gap provides a certain deformation space for the sealing ring 10 to deform towards the outer side after being extruded by the upper locking piece 9. When the water outlet pipe or the corrugated pipe of the basin is inserted into the main water inlet 300 (at the moment, the sealing ring 10 is positioned between the corrugated pipe and the limiting part 8), the upper locking part 9 can be rotated to move towards the lower side, the inner side of the upper locking part 9 acts on the sealing ring 10, and the bottom of the sealing ring 10 is propped against the limiting part 8, so that the limiting part 8 can block the downward movement trend of the sealing ring 10, at the moment, the sealing ring 10 can only deform towards two sides, so that the sealing ring is tightly propped between the corrugated pipe and the limiting part 8, and the connecting effect of the corrugated pipe is realized; in addition, in order to avoid deformation of the bellows, it is recommended to use a harder material.

The outside of the side water inlet 200 is connected with a water inlet joint assembly 13; the water inlet joint assembly 13 comprises more than one three-way joint 12 and/or elbow joint 11;

the three-way joint 12 and/or the elbow joint 11 is provided with a pipeline joint 121, the pipeline joint 121 is in a ladder shape to adapt to the external pipeline ends with different calibers, and a rubber ring 1211 is arranged on the ladder surface of the pipeline joint 121; the three-way joint 12 is generally used with the elbow joint 11, but can also be used with a plug, and the specific number and the position relationship of the three-way joint 12 and the elbow joint 11 are determined by practical situations.

The outside of the pipe joint 121 is detachably sleeved with a rubber sleeve 1212, and the rubber sleeve 1212 is arranged on the outer side of the step surface; the outer surface of the rubber sleeve 1212 is provided with a plurality of layers of rubber rings 1211, the outer diameter of the rubber rings 1211 is gradually increased from outside to inside, or the pipeline joint 121 is a quick connector 111, the rubber sleeve 1212 is used for sealing and leakage prevention, the rubber rings 1211 and the rubber sleeve 1212 are detachable, the joint required by practical situations is convenient and quick to replace, and the quick connector 111 at the elbow joint 11 is used for quick connection of small-caliber plastic pipes, generally waste water pipes of filters and the like.

Example 2:

on the basis of the above embodiment 1, as shown in fig. 7, when the elastic deodorizing sleeve 2 is not sleeved on the main body 1 and is in a natural state, the middle part forms a flow channel 20, the cross section of the flow channel 20 is in a wave shape, and when the wave shape design is compared with the existing rectangle, the stress and tension effects are more obvious and the closing effect is better when the elastic deodorizing sleeve 2 is sleeved on the main body 1.

The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (10)

1. A deodorizing drainer comprises

A main body (1) in which a passage (100) through which a fluid passes is formed;

the method is characterized in that: and also comprises

An elastic deodorization sleeve (2) which is arranged below the main body (1); two sides of the lower part of the elastic deodorization sleeve (2) are mutually clung to form a lower sealing part (22), so that the channel (100) is blocked; the lower seal (22) is openable under the pressure of a quantity of fluid and is reset after the fluid has passed;

an auxiliary sleeve (3) which is in threaded connection with the periphery of the main body (1), and the auxiliary sleeve (3) can move up and down along the main body (1) and be positioned;

the outer ring (5) is arranged at the lower part of the main body (1), and the outer ring (5) is outwards protruded under the pressing force of the auxiliary sleeve (3).

2. The odor-resistant drainer according to claim 1, wherein: an outer abutting table (41) is arranged at the lower part of the main body (1);

the outer peripheral side of the main body (1) is provided with a step part, and the step part is positioned at the lower side of the auxiliary sleeve (3);

the outer ring (5) is sleeved outside the main body and is positioned on the upper side of the step part; when the auxiliary sleeve (3) moves downwards, the outer ring (5) is extruded by the auxiliary sleeve (3) and the step part to protrude outwards;

the outer abutting platform (41) is integrally formed with or connected with the main body (1) in a split mode;

the outer abutting table (41) is connected with the main body (1) in a split mode, and the specific structure is as follows: the lower part of the main body (1) is in threaded connection or clamped connection or is adhered with a first locking piece (4), the outer diameter of the first locking piece (4) is larger than the outer diameter of the lower side of the main body (1), and the outer abutting table (41) is formed;

the lower part of the outer abutting table (41) is also provided with a second locking piece (6), and the elastic deodorizing sleeve (2) is pressed between the outer abutting table (41) and the second locking piece (6).

3. The odor-resistant drainer according to claim 1, wherein: a limiting groove (51) is formed between the outer ring (5) and the side wall of the main body (1), a limiting block (31) which can be embedded into the limiting groove (51) is formed at the bottom of the auxiliary sleeve (3), and the outer ring (5) can be outwards spread after the limiting block (31) is embedded into the limiting groove (51); the outer side wall of the limiting groove (51) forms a first inclined surface (52), the lower outer periphery of the limiting block (31) forms a second inclined surface (32), and the second inclined surface (32) slides along the first inclined surface (52) and outwards expands the outer ring (5).

4. The odor-resistant drainer according to claim 2, wherein: an outer step (53) is formed on the lower side of the outer ring (5), an outer abutting table (41) is formed at the lower end of the first locking piece (4) corresponding to the outer step (53), and the outer step (53) is pressed on the outer abutting table (41).

5. The odor-resistant drainer according to claim 1, wherein:

a plurality of side water inlets (200) are formed in the side part of the main body (1);

the upper part of the main body (1) is provided with a main water inlet (300);

a partition (7) is provided inside the main body (1) for separating water flowing in from the side water inlet (200) and the main water inlet (300).

6. The odor-resistant drainer according to claim 5, wherein: the partition part (7) comprises a ring sleeve part (71) formed by extending the inner end part of the main water inlet (300) downwards, and the lower port of the ring sleeve part (71) is contracted inwards to form a diameter-reducing part (72); the annular sleeve part (71) extends downwards to the middle part of the side water inlet (200); a flow blocking cavity (73) is formed between the lower end of the annular sleeve part (71) and the inner wall of the main body (1).

7. The odor-resistant drainer according to claim 5, wherein: the utility model discloses a water inlet, including main water inlet (300), main water inlet (300) outer tip upwards extends and forms spacing portion (8), spacing portion (8) outside is provided with retaining member (9), spacing portion (8) inboard is provided with sealing ring (10), sealing ring (10) upper end butt is in last retaining member (9), and sealing ring (10) lower extreme stretches into spacing portion (8), and spacing portion (8) inboard shaping has step (81) of supporting to locate sealing ring (10) lower terminal surface.

8. The odor-resistant drainer according to claim 7, wherein: the sealing ring (10) is a conical sealing ring, and the outer diameter of the upper end of the sealing ring (10) is larger than that of the lower end; an annular boss (91) is formed at the outer end of the upper locking piece (9), and the upper end face of the sealing ring (10) is propped against the inner end face of the annular boss (91); the limiting part (8) is provided with a third inclined plane (82) at the port, a fourth inclined plane (101) is arranged on the periphery of the sealing ring (10), and the degree of an included angle formed by the third inclined plane (82) and the axis of the main body (1) is larger than that formed by the fourth inclined plane (101) and the axis of the main body (1).

9. The odor-resistant drainer according to claim 5, wherein:

the outside of the side water inlet (200) is connected with a water inlet joint assembly (13); the water inlet joint assembly (13) comprises more than one tee joint (12) and/or elbow joints (11);

the three-way joint (12) and/or the elbow joint (11) are/is provided with a pipeline joint (121), the pipeline joint (121) is in a ladder shape so as to adapt to external pipeline ends with different calibers, and a rubber ring (1211) is arranged on a ladder surface of the pipeline joint (121).

10. The odor-resistant drainer according to claim 9, wherein: the outside of the pipeline joint (121) is detachably sleeved with a rubber sleeve (1212), and the rubber sleeve (1212) is sleeved on the outer side of the step surface; the outer surface of the rubber sleeve (1212) is provided with a plurality of layers of rubber rings (1211), and the outer diameter of the rubber rings (1211) is gradually increased from outside to inside;

or, the pipe joint (121) is a quick joint (111).

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