Multifunctional sewer pipe

Abstract

The utility model belongs to the technical field of sewer pipes, and particularly relates to a multifunctional sewer pipe. Comprising a water draining head, a three-way connector, a sealing cover, a fixing nut and a telescopic pipe assembly, one end of a water outlet of the water draining head is flexibly and fixedly connected with one end of the three-way connector, and the other two ends of the three-way connector are connected with the sealing cover and the telescopic pipe assembly respectively. The telescopic pipe assembly is fixedly connected with the three-way connector through the fixing nut. The multifunctional sewer pipe disclosed by the utility model adopts a modular design, and is convenient to install and maintain. The sewer head is flexibly connected with the three-way joint, so that the sewer pipe can adapt to different mounting environments; the flexibility of a pipeline system is improved through the multi-connector design of the three-way connector.

Description

Technical Field

[0001] The utility model belongs to the technical field of sewer pipes, and particularly relates to a multifunctional sewer pipe. Background Art

[0002] 1. A sewer pipe is a device on a bathroom cabinet that connects a washbasin and a floor drain. Currently, most of them on the market are in the form of single side drainage or vertical drainage. When draining sideways, the sewer pipe can bypass the drawer structure or other structures inside the cabinet and reach the drain on the ground or wall smoothly. When draining vertically, the sewer pipe does not wind around, looks very neat, and is used without disturbing the drawer or other structures inside the cabinet.

[0003] In the prior art, the on-site installation sequence is that after the bathroom cabinet body and the washbasin are installed, the sewer pipe is installed last.

[0004] The prior art has the following technical problems:

[0005] 1. The existing sewer pipes are in two forms: vertical drainage and side drainage. This single drainage method has limited use. The functional requirements of sewer pipes required in different usage scenarios are different. A single sewer pipe cannot meet complex scenarios, resulting in relatively low utilization rate of materials.

[0006] 2. The existing sewer pipes are difficult to install. In a limited space, the sewer pipe needs to be installed under the washbasin without leakage. The operability of the sewer pipe structure needs to be more in line with ergonomic requirements. The existing sewer pipe joints generally have small sizes and poor anti-slip effects. During the actual installation process, they are prone to slipping teeth and are not easy to tighten, resulting in a risk of leakage.

[0007] 3. The existing methods for preventing backflow of odors in sewer pipes mainly rely on water seals or gravity flaps. In the case of the water seal method, there will be some residual water at the initial section of the sewer pipe. The residual water here is still prone to generating bacteria and causing odors. For the gravity flap method, it is mainly that the plastic part relies on its own weight to open and close. When draining, the flap flips up, and when not draining, the flap is pressed back by its own gravity. In the initial stage of product use, there may be no backflow of odors, but after a long time, the entanglement of dirt, hair and other sundries will cause the self-weight to be insufficient to press the flap back, resulting in backflow of odors.

[0008] 4. After the existing sewer pipes are used for a long time, it is inevitable that there will be residual dirt such as hair deposited at a certain position along the sewer pipe, resulting in a decrease in the drainage speed of the sewer pipe. It is very inconvenient to clean, and the product needs to be disassembled entirely. Content of the Utility Model

[0009] In view of the technical problems existing in the above-mentioned prior art, the utility model provides a multi-functional downpipe, and its purpose is: to be able to realize the functions of side drainage and vertical drainage at the same time; to be more in line with the requirements of ergonomic design, even in a narrow operation space, it is easy to operate; through the unique magnetic structure method set, the function effect of preventing back odor is realized; the two drainage structure forms make the cleaning more convenient, and only need to remove one nut cover to clean the internal dirt.

[0010] The technical solution of the utility model to solve the above technical problems is as follows: a multi-functional downpipe, including: a drain head, a three-way joint, a sealing cover, a fixing nut and a telescopic pipe assembly. One end of the water outlet of the drain head is flexibly and fixedly connected to one end of the three-way joint, and the other two ends of the three-way joint are respectively connected to the sealing cover and the telescopic pipe assembly, and the telescopic pipe assembly is fixedly connected to the three-way joint through the fixing nut.

[0011] The beneficial effect of adopting the above further scheme is: The multi-functional downpipe of the utility model adopts a modular design, which is convenient for installation and maintenance. The flexible connection between the drain head and the three-way joint enables the downpipe to adapt to different installation environments; the multi-interface design of the three-way joint improves the flexibility of the pipeline system.

[0012] Further, sealing gaskets are provided between the three-way joint and the sealing cover and between the three-way joint and the telescopic pipe assembly.

[0013] The beneficial effect of adopting the above further scheme is: By setting the sealing gasket, the utility model enhances the sealing performance of the connection part and reduces the risk of water leakage. The use of the sealing gasket ensures the tightness of the connection part, reduces the maintenance cost and potential damage risk.

[0014] Further, a silica gel plug is provided at one end of the telescopic pipe assembly away from the three-way joint, and the silica gel plug is located on the periphery of the telescopic pipe.

[0015] The beneficial effect of adopting the above further scheme is: The setting of the silica gel plug of the utility model can further enhance the sealing effect, especially when the telescopic pipe assembly is not fully extended. The silica gel plug can effectively seal the redundant gaps and prevent peculiar smell and small insects from entering the room.

[0016] Further, the three-way joint, the sealing cover and the fixing nut are all provided with anti-slip structures.

[0017] The beneficial effect of adopting the above further scheme is: The setting of the anti-slip structure of the utility model facilitates the gripping during the installation and disassembly process, and improves the construction efficiency. And the anti-slip structure ensures sufficient friction during the installation or disassembly process and reduces the possibility of slipping.

[0018] Further, the anti-slip structure described above is a plurality of convex steps, and a plurality of the convex steps are evenly arranged on the outer walls of the three-way joint, the sealing cover, and the fixing nut.

[0019] The beneficial effect of adopting the above further scheme is that the design of the convex steps of the present utility model not only provides a better grip, but also can disperse the hand pressure and avoid excessive local stress. Moreover, the evenly distributed convex steps increase the friction area and improve the safety and comfort of grasping.

[0020] Further, two adjacent ports of the three-way joint described above are perpendicular to each other. During installation, one port of the three-way joint is connected to the drain head in the vertical direction.

[0021] The beneficial effect of adopting the above further scheme is that the design of the ports of the three-way joint of the present utility model enables the drain pipe to be installed vertically or horizontally, improving the flexibility of installation. This design allows the drain pipe to adapt to various installation environments and can achieve various layout methods without additional accessories.

[0022] Further, an anti-odor structure is provided inside the telescopic pipe assembly, and the anti-odor structure is arranged at one end of the telescopic pipe assembly close to the three-way joint.

[0023] The beneficial effect of adopting the above further scheme is that the built-in anti-odor structure of the present utility model can effectively prevent the reflux of odors and harmful gases. Moreover, the design of the anti-odor structure simplifies the overall structure and improves the anti-odor performance at the same time.

[0024] Further, the anti-odor structure includes an anti-odor main body and an anti-odor flap. The anti-odor main body and the anti-odor flap are movably connected by a rotating shaft. The telescopic pipe assembly is provided with a limiting rib that restricts the rotation of the anti-odor flap. When the telescopic pipe assembly is connected to the horizontal port of the three-way joint, the opening of the anti-odor flap is located at the bottom of the anti-odor flap.

[0025] The beneficial effect of adopting the above further scheme is that the position design of the anti-odor flap of the present utility model ensures normal operation whether in vertical or horizontal installation. The design of the limiting rib enables the anti-odor flap to automatically adjust its position according to the direction of the water flow and maintain good sealing performance.

[0026] Further, the anti-odor flap is inclined, and the anti-odor main body is provided with an inclined surface that cooperates with the inclined anti-odor flap.

[0027] The beneficial effect of adopting the above further scheme is that the inclined anti-odor flap and main body design of the present utility model can make the anti-odor flap rely on its own gravity to achieve a closed effect when there is no water flow, maintaining good sealing performance and improving the anti-odor performance.

[0028] Further, the above also includes a main magnet and a flap magnet. The main magnet is fixedly arranged on the odor-proof main body, and the flap magnet is fixedly arranged on the odor-proof flap. Through the adsorption effect of the main magnet and the flap magnet, the closure of the odor-proof flap is realized.

[0029] The beneficial effect of adopting the above further solution is that the use of the magnet in the utility model enhances the sealing effect when the flap is closed and improves the odor-proof performance. The attractive force of the magnet ensures that the flap is tightly closed, and good sealing can be maintained even under low water pressure conditions.

[0030] Further, the telescopic pipe assembly includes an adapter and a telescopic pipe, and the adapter and the telescopic pipe are movably connected by a buckle.

[0031] The beneficial effects of the utility model are as follows:

[0032] 1. By designing an adjustable sewer pipe assembly, it can adapt to various drainage methods (such as vertical drainage and side drainage), enabling the same sewer pipe to be flexibly applied in different usage scenarios and improving the utilization rate of materials.

[0033] 2. The optimized structural design and larger joint size, combined with the anti-slip structure, make the installation of the sewer pipe more convenient and reduce the risk of water leakage caused by improper installation.

[0034] 3. The use of a magnet-assisted odor-proof flap design can not only avoid the problem that the flap cannot be normally closed due to dirt and sundries, but also maintain a good odor-proof effect after long-term use.

[0035] 4. The design takes into account the factor of easy cleaning. Through the detachable sealing cover, users can easily remove the dirt in the sewer pipe and maintain the good drainage performance of the sewer pipe.

[0036] Additional aspects and advantages of the present application will be given in part in the following description, which will become apparent from the following description, or can be understood through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 is an exploded schematic view of a multifunctional sewer pipe provided in Embodiment 1 of the present utility model;

[0038] Figure 2 is Figure 1 the front schematic view of

[0039] Figure 3 is a structural schematic view of a multifunctional sewer pipe provided in Embodiment 1 of the present utility model;

[0040] Figure 4Schematic diagram of the structure of a three-way joint of a multi-functional sewer pipe provided in Embodiment 1 of the present utility model;

[0041] Figure 5 Schematic diagram of the structure of an odor-proof structure of a multi-functional sewer pipe provided in Embodiment 1 of the present utility model;

[0042] Figure 6 Schematic diagram of the structure of a multi-functional sewer pipe provided in Embodiment 2 of the present utility model.

[0043] Reference numerals: 10, drain head; 20, three-way joint, 201, first port; 202, convex step; 203, second port; 204, third port; 30, gasket; 40, sealing cover; 50, fixing nut; 60, odor-proof structure; 601, odor-proof flap; 6011, flap magnet; 602, odor-proof main body; 6021, main body magnet; 603, rotating shaft; 70, telescopic pipe assembly; 701, adapter; 702, telescopic pipe; 80, silica gel plug. Detailed implementation manners

[0044] The principles and features of the present utility model are described below. The examples given are only used to explain the present utility model and are not intended to limit the scope of the present utility model.

[0045] The technical solutions of the present utility model and how the technical solutions of the present utility model solve the above technical problems are described in detail below with specific embodiments. These several specific embodiments may be combined with each other. For the same or similar concepts or processes, they may not be repeated in some embodiments. The embodiments of the present utility model will be described below with reference to the accompanying drawings.

[0046] Embodiment 1

[0047] Embodiment 1 provides a possible implementation manner. As Figures 1 - 5 shown, a multi-functional sewer pipe is provided, including: a drain head 10, a three-way joint 20, a sealing cover 40, a fixing nut 50, and a telescopic pipe assembly 70. One end of the water outlet of the drain head 10 is flexibly and fixedly connected to the first port 201 of the three-way joint 20. The third port 204 of the three-way joint 20 is flexibly and fixedly connected to the sealing cover 40. The telescopic pipe assembly 70 is flexibly and fixedly connected to the second port 203 of the three-way joint 20 through the fixing nut 50.

[0048] Among them, the drain head 10 is placed in the basin hole of the washbasin and is fastened to the washbasin through the three-way joint 20.

[0049] Among them, the multi-functional downpipe of the present utility model adopts a modular design, which is convenient for installation and maintenance. The telescopic pipe assembly 70 is flexibly and fixedly connected to the second port 203 of the three-way joint 20, enabling the multi-functional downpipe to adapt to the installation environment of side drainage.

[0050] Optionally, gaskets 30 are provided between the three-way joint 20 and the sealing cover 40, and between the three-way joint 20 and the telescopic pipe assembly 70.

[0051] Among them, by providing the gasket 30, the present utility model enhances the sealing performance at the connection, reducing the risk of water leakage. The use of the gasket 30 ensures the tightness of the connection part, reducing the maintenance cost and potential damage risk.

[0052] Optionally, a silica gel plug 80 is provided at one end of the telescopic pipe assembly 70 away from the second port 203, and the silica gel plug 80 is located on the periphery of the telescopic pipe 702.

[0053] Among them, the setting of the silica gel plug 80 of the present utility model can further enhance the sealing effect, especially when the telescopic pipe assembly 70 is not fully extended. The silica gel plug 80 can effectively seal the extra gaps, preventing odors and small insects from entering the room.

[0054] Optionally, the three-way joint 20, the sealing cover 40, and the fixing nut 50 are all provided with anti-slip structures.

[0055] Among them, the setting of the anti-slip structure of the present utility model facilitates the gripping during the installation and disassembly processes, improving the construction efficiency. And the anti-slip structure ensures sufficient friction during the installation or disassembly process, reducing the possibility of slipping.

[0056] Optionally, the anti-slip structure is a plurality of convex steps 202, and a plurality of the convex steps 202 are evenly provided on the outer walls of the three-way joint 20, the sealing cover 40, and the fixing nut 50.

[0057] Among them, the design of the convex steps 202 of the present utility model not only provides a better gripping feeling but also can disperse the hand pressure, avoiding excessive local force. And the evenly distributed convex steps 202 increase the friction area, improving the safety and comfort of gripping.

[0058] Optionally, two adjacent ports of the three-way joint 20 are perpendicular to each other. During installation, the first port 201 of the three-way joint 20 is connected to the water outlet head 10 in the vertical direction.

[0059] Among them, the design of the ports of the three-way joint 20 of the present utility model enables the telescopic pipe assembly 70 to be installed horizontally and the sealing cover 40 to be installed vertically, improving the installation flexibility.

[0060] Optionally, an odor prevention structure 60 is provided inside the telescopic pipe assembly 70, and the odor prevention structure 60 is arranged at one end of the telescopic pipe assembly 70 close to the tee joint 20.

[0061] Among them, the built-in odor prevention structure 60 of the present utility model can effectively prevent the reflux of odor and harmful gases. And the design of the odor prevention structure 60 simplifies the overall structure and improves the odor prevention performance at the same time.

[0062] Optionally, the odor prevention structure 60 includes an odor prevention main body 602 and an odor prevention flap 601. The odor prevention main body 602 and the odor prevention flap 601 are movably connected through a rotating shaft 603. The telescopic pipe assembly 70 is provided with a limiting rib for restricting the rotation of the odor prevention flap 601, and the opening of the odor prevention flap 601 is located at the bottom of the odor prevention flap 601.

[0063] Among them, the design of the limiting rib of the present utility model enables the odor prevention flap 601 to automatically adjust its position according to the direction of the water flow and maintain good sealing performance.

[0064] In this embodiment, as Figure 5 shown, the large horizontal arrow indicates the water flow direction, and the small curved arrow indicates the movement direction of the odor prevention flap 601 under the influence of the water flow.

[0065] Optionally, the odor prevention flap 601 is inclined, and the odor prevention main body 602 is provided with an inclined surface for cooperating with the inclined odor prevention flap 601.

[0066] Among them, the inclined odor prevention flap 601 and the main body design of the present utility model can make the odor prevention flap 601 rely on its own gravity to achieve a closed effect when there is no water flow, maintaining good sealing performance and improving the odor prevention performance.

[0067] Optionally, it further includes a main body magnet 6021 and a flap magnet 6011. The main body magnet 6021 is fixedly arranged on the odor prevention main body 602, and the flap magnet 6011 is fixedly arranged on the odor prevention flap 601. Through the adsorption effect of the main body magnet 6021 and the flap magnet 6011, the closing of the odor prevention flap 601 is realized.

[0068] Among them, the use of magnets in the present utility model enhances the sealing effect when the flap is closed and improves the odor prevention performance. The attraction of the magnet ensures that the flap is tightly closed and can maintain good sealing even under low water pressure conditions.

[0069] Optionally, the telescopic pipe assembly 70 includes a swivel joint 701 and a telescopic pipe 702, and the swivel joint 701 and the telescopic pipe 702 are movably connected through a buckle.

[0070] Working principle

[0071] The lower water head 10 is placed in the basin hole of the washbasin and fixed on the washbasin through a three-way joint 20. The telescopic pipe assembly 70 is connected to the second port 203 of the three-way joint 20 through a fixing nut 50, enabling the telescopic pipe assembly 70 to adapt to the installation environment of side drainage. The sealing cover 40 is connected through the third port 204 of the three-way joint 20 to close the other port. During daily use, water flows out through the horizontally placed telescopic pipe assembly 70, and the automatic closing function of the anti-odor flap 601 prevents the backflow of odors. During regular cleaning, the sealing cover 40 is unscrewed, and the hair or other sundries inside are cleaned through the third port 204 of the three-way joint 20.

[0072] Embodiment 2

[0073] Embodiment 2 of the present invention provides a possible implementation manner, as Figure 6 shown, a multifunctional sewer pipe is provided, including: a lower water head 10, a three-way joint 20, a sealing cover 40, a fixing nut 50, and a telescopic pipe assembly 70. One end of the water outlet of the lower water head 10 is flexibly and fixedly connected to the first port 201 of the three-way joint 20, the second port 203 of the three-way joint 20 is flexibly and fixedly connected to the sealing cover 40, and the telescopic pipe assembly 70 is flexibly and fixedly connected to the third port 204 of the three-way joint 20 through the fixing nut 50.

[0074] Among them, the lower water head 10 is placed in the basin hole of the washbasin and fastened to the washbasin through the three-way joint 20.

[0075] Among them, the multifunctional sewer pipe of the present invention adopts a modular design, which is convenient for installation and maintenance. The telescopic pipe assembly 70 is flexibly and fixedly connected to the second port 203 of the three-way joint 20, enabling the multifunctional sewer pipe to adapt to the installation environment of vertical drainage.

[0076] Optionally, sealing gaskets 30 are provided between the three-way joint 20 and the sealing cover 40 and between the three-way joint 20 and the telescopic pipe assembly 70.

[0077] Among them, by setting the sealing gasket 30, the present invention enhances the sealing performance at the connection, reducing the risk of water leakage. The use of the sealing gasket 30 ensures the tightness of the connection part, reducing the maintenance cost and potential damage risk.

[0078] Optionally, a silicone plug 80 is provided at one end of the telescopic pipe assembly 70 away from the third port 204, and the silicone plug 80 is located outside the telescopic pipe 702.

[0079] Among them, the setting of the silicone plug 80 of the present invention can further enhance the sealing effect, especially when the telescopic pipe assembly 70 is not fully extended. The silicone plug 80 can effectively seal the extra gaps, preventing odors and small insects from entering the room.

[0080] Optionally, the three-way joint 20, the sealing cover 40 and the fixing nut 50 are all provided with anti-slip structures.

[0081] Among them, the anti-slip structure of the present utility model facilitates the gripping during the installation and disassembly processes, improving the construction efficiency. And the anti-slip structure ensures sufficient friction during the installation or disassembly process, reducing the possibility of slipping.

[0082] Optionally, the anti-slip structure is a plurality of convex steps 202, and a plurality of the convex steps 202 are evenly arranged on the outer walls of the three-way joint 20, the sealing cover 40 and the fixing nut 50.

[0083] Among them, the design of the convex steps 202 of the present utility model not only provides a better gripping feeling, but also can disperse the hand pressure and avoid excessive local stress. And the evenly distributed convex steps 202 increase the friction area, improving the safety and comfort of gripping.

[0084] Optionally, two adjacent ports of the three-way joint 20 are perpendicular to each other. During installation, the first port 201 of the three-way joint 20 is connected to the water outlet 10 in the vertical direction.

[0085] Among them, the design of the ports of the three-way joint 20 of the present utility model enables the telescopic pipe assembly 70 to be vertically installed and the sealing cover 40 to be horizontally installed, improving the installation flexibility.

[0086] Optionally, an odor-proof structure 60 is provided inside the telescopic pipe assembly 70, and the odor-proof structure 60 is arranged at one end of the telescopic pipe assembly 70 close to the three-way joint 20.

[0087] Among them, the built-in odor-proof structure 60 of the present utility model can effectively prevent the reflux of odors and harmful gases. And the design of the odor-proof structure 60 simplifies the overall structure while improving the odor-proof performance.

[0088] Optionally, the odor-proof structure 60 includes an odor-proof main body 602 and an odor-proof flap 601. The odor-proof main body 602 and the odor-proof flap 601 are movably connected by a rotating shaft 603, and the telescopic pipe assembly 70 is provided with a limiting rib for restricting the rotation of the odor-proof flap 601.

[0089] Among them, the design of the limiting rib of the present utility model enables the odor-proof flap 601 to automatically adjust its position according to the direction of the water flow, maintaining good sealing performance.

[0090] Optionally, it further includes a main magnet 6021 and a flap magnet 6011. The main magnet 6021 is fixedly arranged on the anti-odor main body 602, and the flap magnet 6011 is fixedly arranged on the anti-odor flap 601. Through the adsorption effect of the main magnet 6021 and the flap magnet 6011, the closing of the anti-odor flap 601 is realized.

[0091] Among them, the use of the magnet of the present utility model enhances the sealing effect when the flap is closed and improves the anti-odor performance. The attraction of the magnet ensures that the flap is tightly closed and can maintain good sealing even under low water pressure conditions.

[0092] Optionally, the telescopic pipe assembly 70 includes a connector 701 and a telescopic pipe 702. The connector 701 and the telescopic pipe 702 are movably connected by a buckle.

[0093] Working principle

[0094] The drain head 10 is placed in the basin hole of the washbasin and fixed on the washbasin through a tee joint 20. The telescopic pipe assembly 70 is connected to the third port 204 of the tee joint 20 through a fixing nut 50, so that the telescopic pipe assembly 70 can adapt to the vertical installation environment. The sealing cover 40 is connected through the second port 203 of the tee joint 20 to close the other port. During daily use, the water flows out through the vertical telescopic pipe assembly 70, and the automatic closing function of the anti-odor flap 601 prevents the backflow of odors. During regular cleaning, the sealing cover 40 is unscrewed, and the hair or other sundries inside are cleaned through the second port 203 of the tee joint 20.

[0095] The above description is only the preferred embodiment of the present utility model and the explanation of the applied technical principles. Those skilled in the art should understand that the disclosed scope in the present utility model is not limited to the technical solution formed by the specific combination of the above technical features, and should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the above disclosed concept. For example, the technical solutions formed by mutually replacing the above features with the (but not limited to) technical features with similar functions disclosed in the present utility model.

Claims

1. A multi-functional sewer pipe, characterized in that, Including: A lower water head, a three-way joint, a sealing cover, a fixing nut, and a telescopic pipe assembly. One end of the water outlet of the lower water head is flexibly and fixedly connected to one end of the three-way joint. The other two ends of the three-way joint are respectively connected to the sealing cover and the telescopic pipe assembly. The telescopic pipe assembly is fixedly connected to the three-way joint through the fixing nut.

2. The multifunctional sewer pipe according to claim 1, wherein, Sealing gaskets are provided between the three-way joint and the sealing cover, and between the three-way joint and the telescopic pipe assembly.

3. The multifunctional sewer pipe according to claim 1, characterized in that, A silica gel plug is provided at one end of the telescopic pipe assembly away from the three-way joint, and the silica gel plug is located on the periphery of the telescopic pipe.

4. A multifunctional sewer pipe according to claim 1, characterized in that, The three-way joint, the sealing cover, and the fixing nut are all provided with anti-slip structures.

5. The multifunctional sewer pipe according to claim 4, characterized in that, The anti-slip structure is a plurality of convex steps, and a plurality of the convex steps are evenly provided on the outer walls of the three-way joint, the sealing cover, and the fixing nut.

6. The multifunctional sewer pipe according to claim 1, characterized in that, Two adjacent ports of the three-way joint are perpendicular to each other. During installation, one port of the three-way joint is connected to the lower water head in the vertical direction.

7. The multifunctional sewer pipe according to claim 6, wherein, An anti-odor structure is provided inside the telescopic pipe assembly, and the anti-odor structure is provided at one end of the telescopic pipe assembly close to the three-way joint.

8. A multifunctional sewer pipe according to claim 7, wherein, The anti-odor structure includes an anti-odor main body and an anti-odor flap. The anti-odor main body and the anti-odor flap are movably connected by a rotating shaft. The telescopic pipe assembly is provided with a limiting rib for restricting the rotation of the anti-odor flap. When the telescopic pipe assembly is connected to the horizontal port of the three-way joint, the opening of the anti-odor flap is located at the bottom of the anti-odor flap.

9. A multifunctional sewer pipe according to claim 8, wherein The anti-odor flap is inclined, and the anti-odor main body is provided with an inclined surface for cooperating with the inclined anti-odor flap.

10. A multifunctional sewer pipe according to claim 8, characterized in that, It also includes a main body magnet and a flap magnet. The main body magnet is fixedly provided on the anti-odor main body, and the flap magnet is fixedly provided on the anti-odor flap. The closing of the anti-odor flap is realized through the adsorption effect of the main body magnet and the flap magnet.

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