Drainage connector, deodorization connector assembly and deodorization drainer

By designing a rotatable torsion joint and a water-sealed anti-odor core, the problem of large space occupation and difficult connection of vertical drain pipes in washbasin drainers is solved, realizing flexible connection of drain pipes and odor prevention, optimizing space utilization and installation convenience.

CN223880457UActive Publication Date: 2026-02-06崔艳琴
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Patent Information

Application Number
CN202520332915.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-28
Publication Date
2026-02-06
Estimated Expiration
2035-02-28

AI Technical Summary

Technical Problem

The drain pipes of existing washbasin drainers are mostly installed vertically, occupying a large space under the basin, and are difficult to connect with the drain pipe when installed horizontally.

Method used

A torsion joint was designed, including an upper interface and a lower interface, which can rotate relative to each other around the same rotation axis. After vertical docking, it can be rotated to an inclined or horizontal state, reducing the vertical space occupied, and preventing odor backflow through a water seal anti-odor core.

Benefits of technology

It enables flexible connection and space optimization of drainage pipes, while effectively preventing odor backflow, thus improving installation convenience and usage efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a sewer connector, a deodorization connector assembly and a deodorization drainer, and belongs to the technical field of sewer pipelines, the sewer connector comprises a torsion connector, the torsion connector comprises an upper connector and a lower connector, the upper connector is used for being connected with a counter basin drainer, and the lower connector is used for being connected with a sewer pipeline. The upper connector and the lower connector can relatively rotate around the same rotating axis. The odor-resistant connector assembly comprises a water seal odor-resistant core and a drainage connector, and the water seal odor-resistant core is installed in a torsion connector of the drainage connector. The deodorization drainer comprises a counter basin drainer, a sewer pipeline and a deodorization connector assembly, the counter basin drainer is used for being installed at a counter basin drainage port, and the sewer pipeline is used for being installed on a sewer pipe opening. After the upper connector is connected with the counter basin drainer, the upper connector and the lower connector are both in a vertical state, butt joint of the lower connector and a sewer pipeline is facilitated, and after butt joint is completed, the lower connector can be lifted from the vertical state to the inclined or horizontal state by rotating the lower connector, so that the occupied space in the vertical direction is reduced.
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Description

TECHNICAL FIELD

[0001] The utility model relates to sewer pipeline technical field especially is related to a sewer joint, prevent smelly joint subassembly and prevent smelly sewer. BACKGROUND

[0002] The drain pipe of the current market's washbasin sewer is mostly vertically arranged, after the drain pipe and the sewer pipeline are docked, the whole sewer pipeline is also in the vertical state, then the vertical space of basin is occupied, the cabinet storage space is compressed, and if the drain pipe of the washbasin sewer is horizontally arranged to reduce the land occupation in the vertical direction, the sewer pipeline and the horizontally arranged drain pipe are inconvenient to dock because the cabinet provides limited operation space for the installation personnel. UTILITY MODEL CONTENT

[0003] The utility model discloses a sewer joint, prevent smelly joint subassembly and prevent smelly sewer, including swivel joint, swivel joint has the upper interface and lower interface that can rotate relatively around same rotation axis, after the upper interface is connected with the basin sewer, the upper interface and lower interface are vertical state, the lower interface is docked with the sewer pipeline conveniently, and after docking is completed, the lower interface can be lifted to the inclined or horizontal state by rotating the lower interface to reduce the land occupation in the vertical direction.

[0004] To achieve the above object, the utility model provides the following scheme: the utility model discloses a sewer joint, including swivel joint, swivel joint includes upper interface and lower interface, the upper interface is used to be connected with the basin sewer, the lower interface is used to be connected with the sewer pipeline, the upper interface and the lower interface can rotate relatively around same rotation axis, the central axis of the upper interface and the rotation axis have first included angle, the central axis of the lower interface and the rotation axis have second included angle, the first included angle and the second included angle are same.

[0005] Preferably, the first included angle and the second included angle are 45 degrees.

[0006] Preferably, the swivel joint includes upper joint and lower joint, one end of the upper joint is equipped with the upper interface, the other end of the upper joint is equipped with first circular interface, one end of the lower joint is equipped with the lower interface, the other end of the lower joint is equipped with second circular interface, the first circular interface and the second circular interface are coaxial and sealed rotary connection.

[0007] Preferably, the first circular interface is provided with a ring-shaped plug, an outer wall of the ring-shaped plug is provided with a first limiting ring groove and a first sealing ring groove, the first limiting ring groove and the first sealing ring groove are coaxially arranged with the ring-shaped plug, the first sealing ring groove is located between the first circular interface and the first limiting ring groove, the first sealing ring groove is provided with a first sealing ring, the second circular interface is provided with a ring-shaped insertion groove for inserting the ring-shaped plug, a groove bottom of the ring-shaped insertion groove is used for abutting with an end of the ring-shaped plug, a side wall of the ring-shaped insertion groove is provided with a limiting protrusion, the limiting protrusion can be clamped into the first limiting ring groove when the ring-shaped insertion groove abuts with the ring-shaped plug.

[0008] Also disclosed is a deodorization joint assembly, comprising a water seal deodorization core and the above-mentioned drain joint, the water seal deodorization core is installed in the twist joint of the drain joint.

[0009] Preferably, the water seal deodorization core is provided with a ring-shaped edge, the ring-shaped edge is provided with a clamping notch, the upper interface is a circular interface, an inner wall diameter of the upper interface matches an outer diameter of the ring-shaped edge, the inner wall of the upper interface is provided with a clamping protrusion and a limiting support, the clamping protrusion matches the clamping notch, and the clamping protrusion and the limiting support have a limiting gap for clamping the ring-shaped edge.

[0010] Preferably, the water seal deodorization core comprises a containing groove and an inner core pipe, an inner wall of a groove opening of the containing groove is provided with an embedded ring groove, an outer wall of the groove opening of the containing groove is provided with the ring-shaped edge, a side wall of the containing groove is provided with an overflow port, a groove bottom of the containing groove and the overflow port form a water storage area, one end of the inner core pipe is provided with a limiting ring, the limiting ring is used for being embedded in the embedded ring groove, and the other end of the inner core pipe extends into the water storage area.

[0011] Also disclosed is a deodorization drain device, comprising a basin drain device, a drain pipeline and the above-mentioned deodorization joint assembly, the basin drain device is used for being installed at a drain port of a basin, and the drain pipeline is used for being installed on a drain pipe opening.

[0012] Preferably, the odor-resistant joint assembly with a ring-shaped edge and a clamping protrusion is adopted, the basin drain includes a connecting pipe and a basin pipe with a drain opening provided with a drain switch; the basin pipe is provided with a limiting edge on the outer wall of the end opening provided with the drain switch, the basin drain is provided with a limiting clamping groove for clamping the limiting edge, the limiting edge is sealed with the limiting clamping groove through a third sealing ring, and the outer wall of the basin pipe is provided with a first thread; the inner wall of the end opening of the connecting pipe is provided with a second thread, the outer wall of the end opening of the connecting pipe provided with the second thread is provided with an abutting step ring, the abutting step ring is sealed with the basin drain through a fourth sealing ring, the second thread is used for connecting with the first thread, the outer wall of the other end opening of the connecting pipe is provided with a second limiting ring groove and a second sealing ring groove, the second limiting ring groove and the second sealing ring groove are coaxially arranged with the connecting pipe, the second sealing ring groove is located between the second limiting ring groove and the abutting step ring, the second sealing ring groove is provided with a second sealing ring, and the end opening of the connecting pipe provided with the second limiting ring groove is provided with an insertion notch matched with the clamping protrusion.

[0013] Preferably, the drain pipeline includes a connecting head, a corrugated pipe, a sealing sleeve and a buckling cover for buckling on the drain pipe opening, one end of the connecting head is provided with a third thread, the outer wall of the lower interface is provided with a fourth thread, the fourth thread is used for connecting with the third thread, the other end of the connecting head is provided with a plug-in ring groove, one end of the corrugated pipe is provided with a plug-in opening for being plugged into the plug-in ring groove, the other end of the corrugated pipe is provided with a stretching opening for stretching into the drain pipe opening, the buckling cover is provided with a sleeving opening for sleeving on the stretching opening, and the sealing sleeve is dampedly sleeved on the stretching opening.

[0014] The utility model discloses have following technical effects relative to prior art:

[0015] The utility model discloses a twist joint has the upper interface and lower interface that can rotate relatively around same rotation axis, after connecting the upper interface with basin drain, the upper interface and lower interface are vertical state at this time, thereby facilitating the butt joint of lower interface and drain pipeline, and after the butt joint of lower interface and drain pipeline is completed, rotates the lower interface, can lift the lower interface from vertical state to inclined or horizontal state, thereby reducing the land space in vertical direction. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0017] Figure 1 Structure diagram of the odor-resistant drain (vertical use) in the embodiment;

[0018] Figure 2 Structure diagram of the odor-resistant drain (horizontal use) in the embodiment;

[0019] Figure 3 Structure diagram of the odor-resistant drain in the embodiment;

[0020] Figure 4 Structure diagram of the odor-resistant joint assembly (lower interface vertical) in the embodiment;

[0021] Figure 5 Structure diagram of the odor-resistant joint assembly (lower interface horizontal) in the embodiment;

[0022] Figure 6 Sectional view of the odor-resistant joint assembly in the embodiment;

[0023] Figure 7 Front view structure diagram of the upper joint in the embodiment;

[0024] Figure 8 Top view structure diagram of the upper joint in the embodiment;

[0025] Figure 9 Another perspective structure diagram of the upper joint in the embodiment;

[0026] Figure 10 Top view structure diagram of the upper joint in the embodiment;

[0027] Figure 11 Bottom view structure diagram of the upper joint in the embodiment;

[0028] Figure 12 Front view structure diagram of the lower joint in the embodiment;

[0029] Figure 13 Structure diagram of the lower joint in the embodiment;

[0030] Figure 14 Top view structure diagram of the lower joint in the embodiment;

[0031] Figure 15Fig. 1 is a perspective view of a tub basin pipe fitting according to an embodiment of the present application;

[0032] Figure 16 Fig. 2 is a front view of a connecting pipe fitting according to an embodiment of the present application;

[0033] Figure 17 Fig. 3 is a bottom perspective view of a connecting pipe fitting according to an embodiment of the present application;

[0034] Figure 18 Fig. 4 is a top perspective view of a connecting pipe fitting according to an embodiment of the present application;

[0035] Figure 19 Fig. 5 is a perspective view of a water seal deodorizing core according to an embodiment of the present application;

[0036] Figure 20 Fig. 6 is a sectional view of a water seal deodorizing core according to an embodiment of the present application;

[0037] Figure 21 Fig. 7 is a perspective view of a receiving groove of a water seal deodorizing core according to an embodiment of the present application;

[0038] Figure 22 Fig. 8 is a top perspective view of an inner core pipe of a water seal deodorizing core according to an embodiment of the present application;

[0039] Figure 23 Fig. 9 is a bottom perspective view of an inner core pipe of a water seal deodorizing core according to an embodiment of the present application;

[0040] Figure 24 Fig. 10 is a top perspective view of a connecting head according to an embodiment of the present application;

[0041] Figure 25 Fig. 11 is a bottom perspective view of a connecting head according to an embodiment of the present application;

[0042] Figure 26 Fig. 12 is a perspective view of a corrugated pipe according to an embodiment of the present application;

[0043] Figure 27 Fig. 13 is a perspective view of a snap-on cover according to an embodiment of the present application;

[0044] Figure 28 Fig. 14 is a bottom perspective view of a sealing sleeve according to an embodiment of the present application;

[0045] Figure 29 Fig. 15 is a top perspective view of a sealing sleeve according to an embodiment of the present application.

[0046] BRIEF DESCRIPTION OF REFERENCE NUMERALS

[0047] 1: tub basin pipe fitting; 2: connecting pipe fitting; 3: water seal deodorizing core; 4: twist joint; 5: connecting head; 6: corrugated pipe; 7: snap-on cover; 8: sealing sleeve; 9: first sealing ring; 10: second sealing ring; 11: third sealing ring; 12: fourth sealing ring;

[0048] 101, drain switch; 102, limiting edge; 103, first thread;

[0049] 201, second thread; 202, abutting step ring; 203, second limiting ring groove; 204, second sealing ring groove; 205, insertion notch;

[0050] 301, accommodating groove; 302, inner core pipe; 303, embedded ring groove; 304, limiting circular ring; 305, overflow port; 306, water containing area; 307, annular edge; 308, clamping notch;

[0051] 401, upper joint; 402, lower joint; 403, upper interface; 404, first circular interface; 405, lower interface; 406, second circular interface; 407, annular plug; 408, first limiting ring groove; 409, first sealing ring groove; 410, annular insertion slot; 411, limiting protrusion; 412, clamping protrusion; 413, limiting support; 414, fourth thread;

[0052] 501, third thread; 502, plug-in ring groove;

[0053] 601, plug-in pipe port; 602, extension pipe port; 603, anti-dropping convex ring;

[0054] 701, sleeve port;

[0055] 801, sealing inverted tooth. DETAILED DESCRIPTION

[0056] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by analysis of those skilled in the art without creative labor belong to the protection scope of the utility model.

[0057] The utility model discloses a drain joint, an odor-resistant joint assembly and an odor-resistant drain, to solve the problems in the prior art, the twist joint has upper interface and lower interface that can rotate relative to the same rotation axis, after connecting the upper interface with the basin drain, the upper interface and the lower interface are in vertical state at this time, which facilitates the butt joint of the lower interface and the drain pipeline, and after the butt joint is completed, the lower interface can be lifted from the vertical state to the inclined or horizontal state by rotating the lower interface, so that the land occupation in the vertical direction is reduced.

[0058] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the utility model will be further described in detail below with reference to the drawings and specific embodiments.

[0059] Example 1

[0060] This embodiment provides a water seal connector, such as Figures 1 to 29 As shown, the device includes a torsion joint 4, inside which a water seal anti-odor core 3 can be installed, or not, depending on actual needs. The torsion joint 4 includes an upper interface 403 and a lower interface 405. The upper interface 403 is used to connect to the sink drain, and the lower interface 405 is used to connect to the drain pipe. After the upper interface 403 is connected to the sink drain and the lower interface 405 is connected to the drain pipe, the upper interface 403 is positioned above the lower interface 405. The upper interface 403 and the lower interface 405 can rotate relative to each other around the same axis of rotation. The central axis of the upper interface 403 has a first angle with the axis of rotation, and the central axis of the lower interface 405 has a second angle with the axis of rotation. The first angle and the second angle are the same.

[0061] Working principle:

[0062] Connect the upper interface 403 to the sink drain assembly. The central axis of the upper interface 403 is vertical. At this time, the central axis of the lower interface 405 is also vertical. After connecting the drain pipe to the lower interface 405, rotate the lower interface 405 upward to raise the central axis of the lower interface 405. There is an angle between the central axis of the lower interface 405 and the central axis of the upper interface 403. This angle can be acute or right angle, but obtuse angles are usually not used as they are not conducive to water drainage. At this time, the central axis of the lower interface 405 is set at an angle or horizontally, which can reduce the storage space occupied by the cabinet under the sink.

[0063] In one implementation, such as Figures 1 to 29 As shown, the first included angle and the second included angle are 45°, that is, the central axis of the lower interface 405 can be rotated to a position with a 45° angle to the central axis of the upper interface 403. When the central axis of the upper interface 403 is vertical, the central axis of the lower interface 405 can be rotated to a horizontal state, so that the lower interface 405 is horizontally connected to the drain pipe.

[0064] In one implementation, such as Figures 1 to 29As shown, the torsion joint 4 comprises an upper joint 401 and a lower joint 402. The upper joint 401 is provided with an upper interface 403 at one end and a first circular interface 404 at the other end. The lower joint 402 is provided with a lower interface 405 at one end and a second circular interface 406 at the other end. The first circular interface 404 and the second circular interface 406 are coaxial and sealingly connected. The centers of the first circular interface 404 and the second circular interface 406 coincide, and the first circular interface 404 and the second circular interface 406 have a same center axis, which is a rotation axis around which the upper interface 403 and the lower interface 405 rotate. After the upper interface 403 of the upper joint 401 is connected with the basin trap, the lower joint 402 can be rotated to realize the rotation of the lower interface 405.

[0065] In an embodiment, as shown in Figures 1 to 29 The first circular interface 404 is provided with an annular plug 407, and the outer wall of the annular plug 407 is provided with a first limiting ring groove 408 and a first sealing ring groove 409. The first limiting ring groove 408 and the first sealing ring groove 409 are coaxially arranged on the annular plug 407, and the first sealing ring groove 409 is located between the first circular interface 404 and the first limiting ring groove 408. A first sealing ring 9 is arranged in the first sealing ring groove 409 to realize the sealing between the first circular interface 404 and the second circular interface 406. The second circular interface 406 is provided with an annular insertion groove 410 for coaxially inserting the annular plug 407. The bottom of the annular insertion groove 410 is used to abut against the end of the annular plug 407. The side wall of the annular insertion groove 410 is provided with a limiting protrusion 411. When the annular insertion groove 410 abuts against the annular plug 407, the limiting protrusion 411 can be clamped into the first limiting ring groove 408 to limit the first limiting ring groove 408, so that the first circular interface 404 and the second circular interface 406 are stably connected. The limiting protrusion 411 is arranged along the ring direction of the annular insertion groove 410, and the specific number is set according to the need, at least two, and generally three for stability.

[0066] In an embodiment, as shown in Figures 1 to 29As shown, after the first circular interface 404 and the second circular interface 406 are connected together, the upper connector 401 and the lower connector 402 are assembled together to form a torsion connector 4. The upper connector 401 and the lower connector 402 can form a complete water-passing cavity. The upper interface 403 and the lower interface 405 are both connected to the water-passing cavity. This water-passing cavity is preferably a spherical cavity to ensure smooth water flow and reduce residual liquid. Of course, it can also be rotated to other shapes as needed. More preferably, the upper connector 401 and the lower connector 402 are hemispherical in shape, and the upper interface 403 and the lower interface 405 are approximately cylindrical. After the first circular interface 404 and the second circular interface 406 are connected together, the upper connector 401 and the lower connector 402 form a complete sphere, with a spherical cavity inside.

[0067] Example 2

[0068] This embodiment provides an odor-proof connector assembly, such as... Figures 1 to 29 As shown, the device includes a water-sealed anti-odor core 3 and the drain connector in Example 1. The water-sealed anti-odor core 3 is installed inside the torsion joint 4 of the drain connector. After connecting the upper interface 403 of the drain connector to the sink drain and the lower interface 405 to the drain pipe, the water-sealed anti-odor core 3 can prevent backflow of odor.

[0069] In one implementation, such as Figures 1 to 29 As shown, the water seal odor-proof core 3 has an annular edge 307, and the annular edge 307 has a snap-in notch 308. The upper interface 403 of the torsion joint 4 is a circular interface, and the inner diameter of the upper interface 403 matches the outer diameter of the annular edge 307. The inner wall of the upper interface 403 of the torsion joint 4 has a snap-in protrusion 412 and a limiting support 413. The snap-in protrusion 412 matches the snap-in notch 308. The matching includes the number, position, shape, and size. If there are two snap-in notches 308, circumferentially arranged on the annular edge 307, then there are also two snap-in protrusions 412, circumferentially arranged on the inner wall of the upper interface 403. There is a limiting gap between the limiting support 413 and the snap-in protrusion 412, which allows the annular edge 307 to snap in. During installation, first insert the water seal anti-odor core 3 into the upper interface 403, then rotate the annular edge 307 so that the snap-in notch 308 corresponds to the snap-in protrusion 412. The annular edge 307 can then be inserted into the limiting gap between the limiting support 413 and the snap-in protrusion 412. Then rotate the annular edge 307 again so that the snap-in notch 308 is misaligned with the snap-in protrusion 412, so that the annular edge 307 corresponds to the snap-in protrusion 412. The annular edge 307 is located between the limiting support 413 and the snap-in protrusion 412. The limiting support 413 limits and supports its lower part, and the snap-in protrusion 412 limits the upper part of the annular edge 307, thus completing the installation of the water seal anti-odor core 3 in the torsion joint 4.

[0070] In one implementation, such as Figures 1 to 29As shown, the water seal deodorization core 3 comprises a containing groove 301 and an inner core tube 302. The inner wall of the groove of the containing groove 301 is provided with an embedded ring groove 303, the outer wall of the groove of the containing groove 301 is provided with an annular rim 307, the side wall of the containing groove 301 is provided with overflow ports 305, and the groove bottom of the containing groove 301 and the overflow ports 305 form a water storage area 306. One end of the inner core tube 302 is provided with a limiting ring 304, which is used to be embedded in the embedded ring groove 303, and the other end of the inner core tube 302 extends into the water storage area 306. The number of overflow ports 305 is set according to the needs and is arranged annularly on the peripheral wall of the containing groove 301. During installation, first, the end of the inner core tube 302 without the limiting ring 304 is inserted into the water storage area 306 of the containing groove 301, then the limiting ring 304 is embedded in the embedded ring groove 303, and the limiting ring 304 and the embedded ring groove 303 have a certain damping to ensure that the inner core tube 302 cannot easily separate from the containing groove 301, and then the assembled water seal deodorization core 3 is installed on the upper interface 403, and the water storage area 306 faces the first circular interface 404. When the water in the basin flows into the upper interface 403, it flows into the inner core tube 302, and then is discharged into the water storage area 306 by the inner core tube 302. As the water level rises, the water is discharged through the overflow ports 305. When the water flow in the basin stops, a part of water remains in the water storage area 306. This part of water realizes water seal by submerging the end of the inner core tube 302, so that the odor in the lower water pipeline cannot flow back to the basin through the inner core tube 302, thereby realizing deodorization.

[0071] Embodiment 3

[0072] The embodiment provides a deodorization sink drain, which comprises a basin drain, a drain pipeline and a deodorization joint assembly as in the embodiment 2. Figures 1 to 29 As shown, the water seal deodorization core 3 comprises a containing groove 301 and an inner core tube 302. The inner wall of the groove of the containing groove 301 is provided with an embedded ring groove 303, the outer wall of the groove of the containing groove 301 is provided with an annular rim 307, the side wall of the containing groove 301 is provided with overflow ports 305, and the groove bottom of the containing groove 301 and the overflow ports 305 form a water storage area 306. One end of the inner core tube 302 is provided with a limiting ring 304, which is used to be embedded in the embedded ring groove 303, and the other end of the inner core tube 302 extends into the water storage area 306. The number of overflow ports 305 is set according to the needs and is arranged annularly on the peripheral wall of the containing groove 301. During installation, first, the end of the inner core tube 302 without the limiting ring 304 is inserted into the water storage area 306 of the containing groove 301, then the limiting ring 304 is embedded in the embedded ring groove 303, and the limiting ring 304 and the embedded ring groove 303 have a certain damping to ensure that the inner core tube 302 cannot easily separate from the containing groove 301, and then the assembled water seal deodorization core 3 is installed on the upper interface 403, and the water storage area 306 faces the first circular interface 404. When the water in the basin flows into the upper interface 403, it flows into the inner core tube 302, and then is discharged into the water storage area 306 by the inner core tube 302. As the water level rises, the water is discharged through the overflow ports 305. When the water flow in the basin stops, a part of water remains in the water storage area 306. This part of water realizes water seal by submerging the end of the inner core tube 302, so that the odor in the lower water pipeline cannot flow back to the basin through the inner core tube 302, thereby realizing deodorization.

[0073] In an embodiment, as shown in Figures 1 to 29As shown, the odor-resistant joint assembly is adopted, which contains the annular rim 307 and the snap-in protrusion 412. The basin drain includes a basin pipe 1 and a connecting pipe 2. The basin pipe 1 is provided with a drain switch 101 at one end of the pipe. The drain switch 101 can be a rotary switch or a press switch. The basin pipe 1 is provided with a limiting rim 102 on the outer wall of the one end of the pipe. The basin drain is provided with a limiting slot, which is used for the limiting rim 102 to snap in. The limiting rim 102 is sealed with the limiting slot through the third sealing ring 11. As an option, an anti-damage washer can be arranged between the limiting rim 102 and the third sealing ring 11 to protect the third sealing ring 11 from being worn out. The basin pipe 1 is provided with a first thread 103 on the outer wall. The connecting pipe 2 is provided with a second thread 201 on the inner wall of one end of the pipe. The connecting pipe 2 is provided with an abutting step ring 202 on the outer wall of the one end of the pipe. The abutting step ring 202 is sealed with the basin drain through the fourth sealing ring 12. The second thread 201 is used for connecting with the first thread 103. The connecting pipe 2 is provided with a second limiting ring slot 203 and a second sealing ring slot 204 on the outer wall of the other end of the pipe. The second limiting ring slot 203 and the second sealing ring slot 204 are coaxially arranged with the connecting pipe 2. The second sealing ring slot 204 is located between the second limiting ring slot 203 and the abutting step ring 202. The second sealing ring slot 204 is provided with a second sealing ring 10. The second limiting ring slot 203 is used for the snap-in protrusion 412 to snap in. The slot width of the second limiting ring slot 203 matches the thickness of the snap-in protrusion 412. The connecting pipe 2 is provided with an insertion notch 205 at the one end of the pipe, which matches the snap-in protrusion 412.

[0074] Installation principle:

[0075] Installation of the basin drain: the one end of the basin pipe 1 without the drain switch 101 is inserted through the basin drain, and the limiting rim 102 and the third sealing ring 11 are snapped into the limiting slot of the basin drain. Then, the second thread 201 of the connecting pipe 2 is connected with the first thread 103 of the basin pipe 1, and the connecting pipe 2 is tightened until the fourth sealing ring 12 is pressed tightly on the basin drain by the abutting step ring 202. At this time, the basin drain is clamped in the middle by the limiting rim 102 and the abutting step ring 202, and the installation of the basin drain is completed.

[0076] The installation of the anti-odor joint assembly: align the upper interface 403 with the connecting pipe 2, rotate the upper interface 403 so that the snap-in protrusion 412 is aligned with the insertion notch 205 of the connecting pipe 2, then push the upper interface 403 upward so that the snap-in protrusion 412 enters the second limiting ring groove 203, and then rotate the upper interface 403 so that the snap-in protrusion 412 is offset from the insertion notch 205, at this time, the end of the connecting pipe 2 presses the annular rim 307 of the water seal anti-odor core 3 against the limiting support 413, the twist joint 4 is connected with the connecting pipe 2, and the installation of the anti-odor joint assembly and the basin drain is completed.

[0077] In an embodiment, as shown in Figures 1 to 29 The sewer pipeline includes a connecting head 5, a corrugated pipe 6, a buckling cover 7, and a sealing sleeve 8. One end of the connecting head 5 is provided with a third thread 501, and the outer wall of the lower interface 405 is provided with a fourth thread 414 for connecting with the third thread 501. The other end of the connecting head 5 is provided with an insertion ring groove 502. One end of the corrugated pipe 6 is provided with an insertion pipe opening 601, and the other end of the corrugated pipe 6 is provided with an extension pipe opening 602. The pipe diameters of the insertion pipe opening 601 and the extension pipe opening 602 are smaller than the pipe diameter of the corrugated section of the corrugated pipe 6. The insertion pipe opening 601 is used for insertion into the insertion ring groove 502, and the insertion pipe opening 601 and the insertion ring groove 502 have a certain damping to ensure that the insertion pipe opening 601 cannot easily come off. The extension pipe opening 602 is used for extension into the sewer pipe opening. The buckling cover 7 is provided with a sleeving opening 701, which can be sleeved on the extension pipe opening 602 so as to cover the sewer pipe opening. The sealing sleeve 8 is dampedly sleeved on the extension pipe opening 602, and the outer diameter of the sealing sleeve 8 is greater than the diameter of the sleeving opening 701, which can ensure that the buckling cover 7 cannot fall off the extension pipe opening 602. Further, a anti-falling protruding ring 603 can be further provided on the extension pipe opening 602, and the diameter of the anti-falling protruding ring 603 is greater than the diameter of the sleeving opening 701, which prevents the buckling cover 7 from coming off.

[0078] The installation of the sewer pipeline: first, connect the connecting head 5 and the lower interface 405 through the third thread 501 and the fourth thread 414, then insert the insertion pipe opening 601 of the corrugated pipe 6 into the insertion ring groove 502, and in order to ensure stable connection of the insertion pipe opening 601 and the insertion ring groove 502, adhesive tape can be wound between the corrugated pipe 6 and the connecting head 5, or the adhesive tape can not be wound, which is determined according to the situation; then, the buckling cover 7 is sleeved on

[0079] the extension pipe opening 602, then the sealing sleeve 8 is sleeved on the extension pipe opening 602, then the extension pipe opening 602 is extended into the sewer pipe opening, the sealing sleeve 8 is inserted into the sewer pipe opening to achieve sealing, and finally the buckling cover 7 is buckled on the extension pipe opening 602, and the installation is completed.

[0080] In an embodiment, as shown in Figures 1 to 29As shown, the outer wall of the sealing sleeve 8 is provided with a sealing reverse tooth 801 to improve the sealing and connection stability with the sewer pipe opening.

[0081] In addition to the advantages of changing the direction of the sewer pipeline by the twist joint 4 and reducing the vertical land space, the various connection structures of the present anti-odor sewer are also designed ingeniously, which is beneficial to quick disassembly and assembly while ensuring the connection stability.

[0082] The principle and implementation mode of the present application are described by using specific examples in the present application, and the above example is only used to help understand the method and core idea of the present application; meanwhile, for the general technical personnel in the field, the specific implementation mode and application range will be changed according to the idea of the present application. In conclusion, the content of the present application should not be understood as a limitation of the present application.

Claims

1. A sewer junction, characterized in that The twist joint comprises an upper interface and a lower interface, the upper interface is used for connecting with a basin trap, the lower interface is used for connecting with a sewer pipeline, the upper interface and the lower interface can relatively rotate around the same rotation axis, the central axis of the upper interface and the rotation axis have a first included angle, the central axis of the lower interface and the rotation axis have a second included angle, the first included angle and the second included angle are the same.

2. The drain fitting of claim 1, wherein The first included angle and the second included angle are 45°.

3. The drain fitting of claim 1, wherein The twist joint comprises an upper joint and a lower joint, one end of the upper joint is provided with the upper interface, the other end of the upper joint is provided with a first circular interface, one end of the lower joint is provided with the lower interface, the other end of the lower joint is provided with a second circular interface, the first circular interface and the second circular interface are coaxial and sealingly connected.

4. The drain fitting of claim 3, wherein, The first circular interface is provided with an annular plug, the outer wall of the annular plug is provided with a first limiting ring groove and a first sealing ring groove, the first limiting ring groove and the first sealing ring groove are coaxially arranged with the annular plug, the first sealing ring groove is located between the first circular interface and the first limiting ring groove, the first sealing ring groove is provided with a first sealing ring, the second circular interface is provided with an annular insertion groove for inserting the annular plug, the groove bottom of the annular insertion groove is used for abutting with the end of the annular plug, the side wall of the annular insertion groove is provided with a limiting protrusion, the limiting protrusion can be clamped into the first limiting ring groove when the annular insertion groove abuts with the annular plug.

5. An odor-resistant fitting assembly, comprising: The twist joint comprises an upper interface and a lower interface, the upper interface is used for connecting with a basin trap, the lower interface is used for connecting with a sewer pipeline, the upper interface and the lower interface can relatively rotate around the same rotation axis, the central axis of the upper interface and the rotation axis have a first included angle, the central axis of the lower interface and the rotation axis have a second included angle, the first included angle and the second included angle are the same.

6. The odor-resistant fitting assembly of claim 5, wherein, The first included angle and the second included angle are 45°.

7. The odor-resistant fitting assembly of claim 6, wherein, The twist joint comprises an upper joint and a lower joint, one end of the upper joint is provided with the upper interface, the other end of the upper joint is provided with a first circular interface, one end of the lower joint is provided with the lower interface, the other end of the lower joint is provided with a second circular interface, the first circular interface and the second circular interface are coaxial and sealingly connected.

8. A deodorizing drain device characterized by comprising: The first circular interface is provided with an annular plug, the outer wall of the annular plug is provided with a first limiting ring groove and a first sealing ring groove, the first limiting ring groove and the first sealing ring groove are coaxially arranged with the annular plug, the first sealing ring groove is located between the first circular interface and the first limiting ring groove, the first sealing ring groove is provided with a first sealing ring, the second circular interface is provided with an annular insertion groove for inserting the annular plug, the groove bottom of the annular insertion groove is used for abutting with the end of the annular plug, the side wall of the annular insertion groove is provided with a limiting protrusion, the limiting protrusion can be clamped into the first limiting ring groove when the annular insertion groove abuts with the annular plug. The twist joint comprises an upper interface and a lower interface, the upper interface is used for connecting with a basin trap, the lower interface is used for connecting with a sewer pipeline, the upper interface and the lower interface can relatively rotate around the same rotation axis, the central axis of the upper interface and the rotation axis have a first included angle, the central axis of the lower interface and the rotation axis have a second included angle, the first included angle and the second included angle are the same. The first included angle and the second included angle are 45°. The twist joint comprises an upper joint and a lower joint, one end of the upper joint is provided with the upper interface, the other end of the upper joint is provided with a first circular interface, one end of the lower joint is provided with the lower interface, the other end of the lower joint is provided with a second circular interface, the first circular interface and the second circular interface are coaxial and sealingly connected. The first circular interface is provided with an annular plug, the outer wall of the annular plug is provided with a first limiting ring groove and a first sealing ring groove, the first limiting ring groove and the first sealing ring groove are coaxially arranged with the annular plug, the first sealing ring groove is located between the first circular interface and the first limiting ring groove, the first sealing ring groove is provided with a first sealing ring, the second circular interface is provided with an annular insertion groove for inserting the annular plug, the groove bottom of the annular insertion groove is used for abutting with the end of the annular plug, the side wall of the annular insertion groove is provided with a limiting protrusion, the limiting protrusion can be clamped into the first limiting ring groove when the annular insertion groove abuts with the annular plug. The twist joint comprises an upper interface and a lower interface, the upper interface is used for connecting with a basin trap, the lower interface is used for connecting with a sewer pipeline, the upper interface and the lower interface can relatively rotate around the same rotation axis, the central axis of the upper interface and the rotation axis have a first included angle, the central axis of the lower interface and the rotation axis have a second included angle, the first included angle and the second included angle are the same. The first included angle and the second included angle are 45°. The twist joint comprises an upper joint and a lower joint, one end of the upper joint is provided with the upper interface, the other end of the upper joint is provided with a first circular interface, one end of the lower joint is provided with the lower interface, the other end of the lower joint is provided with a second circular interface, the first circular interface and the second circular interface are coaxial and sealingly connected. The first circular interface is provided with an annular plug, the outer wall of the annular plug is provided with a first limiting ring groove and a first sealing ring groove, the first limiting ring groove and the first sealing ring groove are coaxially arranged with the annular plug, the first sealing ring groove is located between the first circular interface and the first limiting ring groove, the first sealing ring groove is provided with a first sealing ring, the second circular interface is provided with an annular insertion groove for inserting the annular plug, the groove bottom of the annular insertion groove is used for abutting with the end of the annular plug, the side wall of the annular insertion groove is provided with a limiting protrusion, the limiting protrusion can be clamped into the first limiting ring groove when the annular insertion groove abuts with the annular plug. The twist joint comprises an upper interface and a lower interface, the upper interface is used for connecting with a basin trap, the lower interface is used for connecting with a sewer pipeline, the upper interface and the lower interface can relatively rotate around the same rotation axis, the central axis of the upper interface and the rotation axis have a first included angle, the central axis of the lower interface and the rotation axis have a second included angle, the first included angle and the second included angle are the same. The first included angle and the second included angle are 45°. The twist joint comprises an upper joint and a lower joint, one end of the upper joint is provided with the upper interface, the other end of the upper joint is provided with a first circular interface, one end of the lower joint is provided with the lower interface, the other end of the lower joint is provided with a second circular interface, the first circular interface and the second circular interface are coaxial and sealingly connected. The first circular interface is provided with an annular plug, the outer wall of the annular plug is provided with a first limiting ring groove and a first sealing ring groove, the first limiting ring groove and the first sealing ring groove are coaxially arranged with the annular plug, the first sealing ring groove is located between the first circular interface and the first limiting ring groove, the first sealing ring groove is provided with a first sealing ring, the second circular interface is provided with an annular insertion groove for inserting the annular plug, the groove bottom of the annular insertion groove is used for abutting with the end of the annular plug, the side wall of the annular insertion groove is provided with a limiting protrusion, the limiting protrusion can be clamped into the first limiting ring groove when the annular insertion groove abuts with the annular plug.

9. The odor-resistant trap of claim 8, wherein, The anti-odor joint assembly comprises a basin lower water device and a connecting pipe, wherein the basin lower water device comprises a basin pipe and a connecting pipe; the basin pipe is provided with a drainage switch at one end; the outer wall of the one end of the basin pipe is provided with a limiting edge; the basin drainage port is provided with a limiting slot for clamping the limiting edge; the limiting edge is sealed with the limiting slot through a third sealing ring; the outer wall of the basin pipe is provided with a first thread; the inner wall of one end of the connecting pipe is provided with a second thread; the outer wall of the one end of the connecting pipe provided with the second thread is provided with an abutting step ring; the abutting step ring is sealed with the basin drainage port through a fourth sealing ring; the second thread is used for connecting with the first thread; the outer wall of the other end of the connecting pipe is provided with a second limiting ring slot and a second sealing ring slot; the second limiting ring slot and the second sealing ring slot are coaxially arranged on the connecting pipe; the second sealing ring slot is located between the second limiting ring slot and the abutting step ring; the second sealing ring slot is provided with a second sealing ring; the one end of the connecting pipe provided with the second limiting ring slot is provided with an insertion notch; and the insertion notch is matched with a clamping protrusion.

10. The odor-resistant trap of claim 9, wherein, The sewer pipeline comprises a connecting head, a corrugated pipe, a sealing sleeve and a buckling cover for buckling on the sewer port; one end of the connecting head is provided with a third thread; the outer wall of the lower interface is provided with a fourth thread; the fourth thread is used for connecting with the third thread; the other end of the connecting head is provided with an insertion ring slot; one end of the corrugated pipe is provided with an insertion port for being inserted into the insertion ring slot; the other end of the corrugated pipe is provided with an insertion port for being inserted into the sewer port; the buckling cover is provided with a sleeving port for being sleeved on the insertion port; and the sealing sleeve is damp-sleeved on the insertion port.