Drainage adapter and container comprising same

By setting convex ribs on the inside of the drainage nozzle of the drainage adapter, the problem of stacking and jamming of the drainage adapter during transportation is solved, and efficient production and cost reduction are achieved.

WO2025138195A1PCT designated stage expired Publication Date: 2025-07-03PROCTER & GAMBLE CO +3
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Patent Information

Application Number
PCT/CN2023/143512
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Filing Date
2023-12-29
Publication Date
2025-07-03

AI Technical Summary

Technical Problem

Existing drainage and adapters are prone to overlap or get stuck during transportation, resulting in inefficient automation production and increased production costs.

Method used

A drainage adapter is designed, including a cylindrical base and a radially inner drainage nozzle. The inside of the drainage nozzle is provided with convex ribs extending in the drainage direction. The height of the convex ribs is gradually reduced, and parallel convex ribs are arranged symmetrically distributed at the through opening to avoid stacking and jamming.

Benefits of technology

Completely avoid overlapping or jamming between the drainage nozzles of the drainage adapter, improving production efficiency and reducing production costs, while the structure does not need to be significantly changed.

✦ Generated by Eureka AI based on patent content.

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Abstract

Provided in the present disclosure is a drainage adapter. In one exemplary embodiment, the drainage adapter comprises: a cylindrical base, a container connecting portion and a cover connecting portion being respectively provided on two sides of the base in an axial direction; and a drainage nozzle, which is located on a radial inner side of the base, wherein the center line of the drainage nozzle coincides with the center line of the base, in the axial direction of the base, an inflow port is provided at the end of the drainage nozzle close to the container connecting portion, and an outflow port is provided at the end of the drainage nozzle close to the cover connecting portion, and a drainage channel connected to the inflow port and the outflow port is provided on the inner side of the drainage nozzle, a plurality of convex ribs extending in a drainage direction of the drainage nozzle being provided on an inner wall of the drainage channel. The present disclosure further provides a container comprising the drainage adapter.
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Description

Drainage adapter and container including the same Technical Field

[0001] The present disclosure relates generally to the field of packaging technology, and more particularly, to a drainage adapter and a container including the same. Background Art

[0002] In the existing field of packaging technology, for example, in the field of packaging of liquid detergents, a drainage adapter is usually provided between the container body and the container lid of the container for draining the fluid in the container when pouring the fluid. The drainage adapter is detachably connected to the container body and the container lid, respectively. The structure of the drainage adapter is designed so that: the connection between the drainage adapter and the container body needs to be sealed while also allowing it to be opened to refill the container body. The connection between the drainage adapter and the container lid needs to be sufficiently strong to withstand collisions during transportation, and also needs to be able to be opened effortlessly to pour out the liquid.

[0003] On the other hand, when producing detergent products, packaging parts are typically dumped onto the production line, where they are automatically sorted, quality-checked, and assembled. The drainage adapters, which include elongated nozzles, can easily overlap during transportation. Some adapters even become stuck at the lateral openings of the nozzles. Consequently, workers must manually remove these overlapping nozzle adapters, separate them, and return them to the production line for subsequent steps. This reduces the efficiency of automated production and increases production costs.

[0004] In order to overcome the above-mentioned shortcomings, some manufacturers manufacture the drainage nozzle of the drainage adapter to be skewed relative to the base, that is, the extended center line of the drainage nozzle is tilted relative to the central axis of the base. However, this solution is not very ideal. On the other hand, since the drainage nozzle is skewed relative to the base, the drainage adapter has a specific installation direction to achieve optimal drainage of the liquid, which makes the assembly of the product more complicated.

[0005] Therefore, further improvements need to be made to the drainage adapter and its drainage nozzle to completely overcome the possibility of the drainage adapters overlapping each other.

[0006] Summary of the Invention

[0007] The purpose of the present disclosure is to solve at least one aspect of the above-mentioned problems and defects in the prior art.

[0008] According to one aspect of the present disclosure, a drainage adapter is provided, comprising: a cylindrical base, wherein the base is respectively provided with a container connecting portion and a cover connecting portion on both sides in the axial direction; and a drainage nozzle, wherein the drainage nozzle is located on the radial inner side of the base, and the center line of the drainage nozzle coincides with the center line of the base, and in the axial direction of the base, an inlet is provided at one end of the drainage nozzle close to the container connecting portion, and an outlet is provided at the other end close to the cover connecting portion, and a drainage channel connected to the inlet and the outlet is provided on the inner side of the drainage nozzle, and a plurality of convex ribs extending along the drainage direction of the drainage nozzle are provided on the inner wall of the drainage channel.

[0009] According to an exemplary embodiment of the present disclosure, the convex rib is elongated, and the height of the convex rib gradually decreases along the drainage direction.

[0010] According to an exemplary embodiment of the present disclosure, the convex ribs are arranged to be symmetrically distributed with respect to a cross section along a center line of the drainage channel.

[0011] According to an exemplary embodiment of the present disclosure, the number of the ribs is 4-8, and 2-4 ribs are distributed on each side of a cross-section of the drainage channel along the center line. With the center line as the center of the circle, the 2-4 ribs form a central angle ranging from 0° to 70.2°, 25.4° to 116°, or 105° to 135° with the cross-section of the drainage channel along the center line.

[0012] According to an exemplary embodiment of the present disclosure, the number of the convex ribs is 6, and three convex ribs are distributed on each side of a cross-section of the drainage channel along the center line. With the center line as the center of the circle, the three convex ribs form central angles of 25.4°, 70.2° and 115° with the cross-section of the drainage channel along the center line, respectively.

[0013] According to an exemplary embodiment of the present disclosure, the side wall of the drainage channel has a through-opening that penetrates the entire drainage channel, wherein two of the convex ribs are arranged adjacent to and parallel to the through-opening.

[0014] According to an exemplary embodiment of the present disclosure, with the center line of the drainage channel as the center of the circle, the two through sides of the through opening are arranged to span a central angle ranging from 50° to 65°, and the two through sides are arranged to be symmetrically distributed relative to a cross-section along the center line of the drainage channel.

[0015] According to an exemplary embodiment of the present disclosure, with the center line of the drainage channel as the center of the circle, the two through sides of the through opening are arranged to span a central angle of 30.5°.

[0016] According to an exemplary embodiment of the present disclosure, the convex rib includes a plurality of sub-convex ribs parallel to each other.

[0017] According to an exemplary embodiment of the present disclosure, the drainage adapter also includes: an annular connecting portion, which is located between the base and the drainage nozzle in the radial direction of the base, wherein the inlet of the drainage nozzle is circular, and the drainage nozzle is connected to the base through the annular connecting portion, wherein the annular connecting portion is elastic to allow the drainage nozzle to shift relative to the base.

[0018] According to an exemplary embodiment of the present disclosure, the through-opening of the drainage channel extends beyond the inlet and extends into the annular connecting portion, so that a venting recess is formed on the inner circumference of the annular connecting portion.

[0019] According to an exemplary embodiment of the present disclosure, the annular connecting portion also includes a guard eave, which extends from the outer periphery of the annular connecting portion to the inner periphery of the annular connecting portion at the end of the through-opening, and overhangs on the downstream side of the ventilation recess in a direction opposite to the drainage direction of the drainage nozzle.

[0020] According to an exemplary embodiment of the present disclosure, the drainage nozzle is a tongue-shaped piece, and the drainage channel is formed by winding the tongue-shaped piece.

[0021] According to an exemplary embodiment of the present disclosure, the radial inner side of the cover connecting portion has a thread, which is detachably connected to the container cover through the thread, and wherein the end of the cover connecting portion is also provided with at least one overhang extending along the circumference of the base, and the overhang forms a stop groove in the wall of the cover connecting portion.

[0022] According to an exemplary embodiment of the present disclosure, a protrusion is provided near the opening of the stop groove, the protrusion protrudes toward the overhang portion, a side of the protrusion close to the opening is a slope, and a side of the protrusion away from the opening is a step-shaped.

[0023] According to one aspect of the present disclosure, a container is provided, comprising: a container body; a container cover; and the above-mentioned drainage adapter; wherein the container body is connected to the container connecting portion of the drainage adapter, and the container cover is connected to the cover connecting portion of the drainage adapter.

[0024] The drainage adapter provided according to the aforementioned exemplary embodiments of the present disclosure has the following advantages: it completely avoids the problem of the drainage nozzles of the drainage adapter overlapping or even getting stuck with each other, eliminates the manual sorting process, improves production efficiency, reduces production costs, and at the same time does not require major changes to the structure of the existing drainage adapter.

[0025] Other objects and advantages of the present disclosure will become apparent from the following description of the present disclosure with reference to the accompanying drawings, which will help to provide a comprehensive understanding of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The above and other aspects and features of the present disclosure will become more apparent by describing in detail exemplary embodiments of the present disclosure with reference to the accompanying drawings, in which:

[0027] FIG1a is a perspective view of a drainage adapter in use according to one embodiment of the present disclosure;

[0028] FIG1 b is a cross-sectional view along the center line of a drainage adapter in use according to an embodiment of the present disclosure;

[0029] FIG2 a is a bottom perspective view of a drainage adapter according to one embodiment of the present disclosure;

[0030] FIG2 b is a top perspective view of a drainage adapter according to one embodiment of the present disclosure;

[0031] FIG3 is an enlarged perspective view of a rib of a drainage adapter according to an embodiment of the present disclosure;

[0032] FIG4 a is a bottom elevation view of a drainage adapter according to one embodiment of the present disclosure; and

[0033] FIG4 b is a bottom elevation view of a drainage adapter according to several other embodiments of the present disclosure. DETAILED DESCRIPTION

[0034] The following is a further detailed description of the technical solution of the present disclosure through exemplary embodiments and in conjunction with the accompanying drawings. In the specification, the same or similar reference numerals indicate the same or similar components. The following description of the embodiments of the present disclosure with reference to the accompanying drawings is intended to explain the technical content of the present disclosure and should not be construed as a limitation of the present disclosure.

[0035] In addition, in the detailed description below, for ease of explanation, numerous specific details are set forth to provide a comprehensive understanding of the exemplary embodiments of the present disclosure. However, it is apparent that one or more embodiments can be implemented without these specific details. In other cases, well-known structures and devices are embodied in a schematic manner to simplify the drawings.

[0036] The present disclosure describes a drainage adapter, comprising a cylindrical base, wherein the base is provided with a container connection portion and a lid connection portion on both sides in the axial direction; and a drainage nozzle, wherein the drainage nozzle is located radially inward of the base, the centerline of the drainage nozzle coincides with the centerline of the base, and in the axial direction of the base, the drainage nozzle is provided with an inlet at one end close to the container connection portion, and an outlet at the other end close to the lid connection portion, and a drainage channel connected to the inlet and outlet is provided on the inner side of the drainage nozzle, and a plurality of ribs extending along the drainage direction of the drainage nozzle are provided on the inner wall of the drainage channel. The present disclosure also describes a container, comprising a container body, a container lid, and the aforementioned drainage adapter, wherein the container body is connected to the container connection portion of the drainage adapter, and the container lid is connected to the lid connection portion of the drainage adapter.

[0037] The advantages of the drainage adapter disclosed herein are: it completely avoids the problem of the drainage nozzles of the drainage adapter overlapping or even getting stuck with each other, eliminates the manual sorting process, improves production efficiency, reduces production costs, and at the same time does not require major changes to the structure of the existing drainage adapter.

[0038] In this article, expressions that define relative positional relationships, such as "relative features are symmetrically distributed about a section" or "a central angle is formed between a feature and a section," refer to the central section of the feature. Expressions such as "a circle is centered on a centerline" refer to a plane perpendicular to the centerline.

[0039] The drainage adapter and container provided herein can be used to package a variety of liquid products. The containers described herein are sufficiently robust for transporting the products to withstand unintended impacts during transportation. The containers of the present invention can hold cleaning products, disinfectants, dishwashing compositions, laundry detergents, fabric conditioners, fabric dyes, surface protectants, hair care products, food, beverages, pharmaceuticals, supplements, automotive supplies, airline supplies, and any other items that one might desire to ship via mail or parcel delivery services.

[0040] FIG1a is a perspective view of a drainage adapter 10 in use according to an embodiment of the present disclosure; FIG1b is a cross-sectional view along a centerline of the drainage adapter 10 in use according to an embodiment of the present disclosure.

[0041] As shown in the figure, the container of the present disclosure includes a container body 20, a container lid 30, and a drainage adapter 10 connected between the container body 20 and the container lid 30. The drainage adapter 10 is a molded integral part having a roughly cylindrical base 100. The base 100 includes three roughly cylindrical parts, which are nested with each other and have a container connection part 200, a lid connection part 300 and a drainage nozzle 400 formed thereon. The container body 20 is connected to the container connection part 200 of the drainage adapter 10, and the container lid 30 is connected to the lid connection part 300 of the drainage adapter 10. Usually, the drainage adapter 10 is molded integrally from plastic, which is easy to deform during the production process. After the finished product is completed, different parts can have different shapes and thicknesses, thereby giving each part different hardness as required.

[0042] Figure 2a is a bottom stereoscopic view of the drainage adapter 10 according to an embodiment of the present disclosure; Figure 2b is a top stereoscopic view of the drainage adapter 10 according to an embodiment of the present disclosure; Figure 3 is an enlarged stereoscopic view of the rib 403 of the drainage adapter 10 according to an embodiment of the present disclosure.

[0043] As shown in the figure, the drainage adapter 10 disclosed in the present invention includes: a cylindrical base 100, wherein the base 100 is respectively provided with a container connection part 200 and a cover connection part 300 on both sides in the axial direction; and a drainage nozzle 400, wherein the drainage nozzle 400 is located on the radial inner side of the base 100, and the center line of the drainage nozzle 400 coincides with the center line of the base 100. In the axial direction of the base 100, the drainage nozzle 400 is provided with an inlet 401 at one end close to the container connection part 200, and an outlet 402 at the other end close to the cover connection part 300, and the inner side of the drainage nozzle 400 is provided with a drainage channel connected to the inlet 401 and the outlet 402, and the inner wall of the drainage channel is provided with a plurality of ribs 403 extending along the drainage direction of the drainage nozzle 400. The ribs 403 are provided so that the inner wall of the drainage channel is no longer smooth. When a large number of drainage adapters 10 are enclosed in a transportation space, when the drainage nozzle 400 of one drainage adapter 10 attempts to insert into the drainage channel of another drainage adapter 10, the ribs 403 will form an obstacle, making it impossible to insert the drainage nozzle 400.

[0044] The ribs 403 are elongated, and their height gradually decreases along the drainage direction. This arrangement can not only block the drainage nozzles 400 of other drainage adapters 10 but also prevent the liquid from flowing out of the drainage channel smoothly.

[0045] In some embodiments, the sidewall of the drainage channel has a through-opening 404 that passes through the entire drainage channel, wherein two of the ribs 403 are disposed adjacent to and parallel to the through-opening 404. In practice, the drainage nozzle 400 is a tongue-shaped member, and the drainage channel is formed by winding the tongue-shaped member.

[0046] FIG. 4 a is a bottom elevation view of a drainage adapter 10 according to one embodiment of the present disclosure; and FIG. 4 b is a bottom elevation view of a drainage adapter 10 according to several other embodiments of the present disclosure.

[0047] As shown in FIG4a , with the center line of the drainage channel as the center of the circle, the two through side edges 405 of the through opening 404 are arranged to span a central angle ranging from 50° to 65°, and the two through side edges 405 are arranged to be symmetrically distributed relative to a cross section along the center line of the drainage channel.

[0048] Wherein, with the center line of the drainage channel as the center of the circle, the two through side edges 405 of the through opening 404 are set to span a central angle of 30.5°.

[0049] As shown in Figure 4a, the ribs 403 are arranged symmetrically with respect to a cross-section of the drainage channel along the centerline. There are six ribs 403, with three ribs 403 on each side of the cross-section of the drainage channel along the centerline. With the centerline as the center, the three ribs 403 form central angles of 25.4°, 70.2°, and 115° with the cross-section of the drainage channel along the centerline, respectively.

[0050] In one embodiment, the six ribs 403 are arranged with three ribs 403 distributed on each side of a cross-section of the drainage channel along the center line. With the center line as the center of the circle, the three ribs 403 form central angles of 25.4°, 79.2° and 133.1° with the cross-section of the drainage channel along the center line, respectively.

[0051] Experiments have shown that existing drainage nozzles 400 without ribs 403 can become stuck when they are nested in two overlapping positions: the first being when the two drainage nozzles 400 overlap, with one through-side edge 405 of the through-opening 404 of one drainage nozzle 400 abutting against one drainage side edge of the through-opening 404 of the other drainage nozzle 400; and the second being when the two drainage nozzles 400 overlap, with the through-openings 404 of the two drainage nozzles 400 facing each other. The design of the ribs 403 should avoid these two situations. The ribs 403 should be designed so that their highest height is lowest near the through-openings 404. As they are distributed along the inner circumferential wall of the drainage channel, their highest height gradually increases, reaching their highest height when the ribs 403 are directly opposite the through-openings 404. Therefore, the ribs 403 are designed so that their highest height is set within a range of 1-1.62 mm. However, in actual production, all the convex ribs 403 are designed to be consistent, as long as the highest heights of all the convex ribs 403 are within the above data range.

[0052] As shown in Figure 4b, the rib 403 includes a plurality of mutually parallel sub-ribs 403. As shown in the figure, the number of ribs 403 can be multiple. In actual production, the number is 4-8. 2-4 ribs 403 are distributed on each side of a cross-section of the drainage channel along the centerline. With the centerline as the center, the 2-4 ribs 403 on each side can form a central angle with the cross-section of the drainage channel along the centerline in the range of 0°-70.2°, 25.4°-116°, or 105°-135°.

[0053] As shown in Figure 4a, the drainage adapter 10 also includes: an annular connecting portion 500, which is located between the base 100 and the drainage nozzle 400 in the radial direction of the base 100, wherein the inlet 401 of the drainage nozzle 400 is circular, and the drainage nozzle 400 is connected to the base 100 through the annular connecting portion 500, wherein the annular connecting portion 500 is elastic to allow the drainage nozzle 400 to shift relative to the base 100.

[0054] As shown in the figure, the through opening 404 of the drainage channel extends beyond the inlet 401 and extends into the annular connecting portion 500 , so that a venting recess 501 is formed on the inner circumference of the annular connecting portion 500 .

[0055] According to the present disclosure, the annular connecting portion 500 also includes a guard eave 502, which extends from the outer periphery of the annular connecting portion 500 to the inner periphery of the annular connecting portion 500 at the end of the through-opening 404, and cantilevers on the downstream side of the ventilation recess 501 in a direction opposite to the drainage direction of the drainage nozzle 400.

[0056] According to the present disclosure, as shown in Figures 1a and 1b, the radial inner side of the cover connecting portion 300 has a thread 301, which is detachably connected to the container cover 30 via the thread 301, and wherein the end of the cover connecting portion 300 is also provided with at least one overhang portion 302 extending along the circumference of the base 100, and the overhang portion 302 forms a stop groove 303 in the wall of the cover connecting portion 300.

[0057] As shown in the figure, a protrusion 304 is provided near the opening of the stop groove. The protrusion 304 protrudes toward the overhang portion 302. The side of the protrusion 304 close to the opening is a slope, and the side of the protrusion 304 away from the opening is a step shape.

[0058] As shown in Figures 1a and 1b, the container according to the present disclosure includes: a container body 20, a container cover 30, and the above-mentioned drainage adapter 10, wherein the container body 20 is connected to the container connecting portion 200 of the drainage adapter 10, and the container cover 30 is connected to the cover connecting portion 300 of the drainage adapter 10.

[0059] The drainage adapter provided according to the aforementioned exemplary embodiments of the present disclosure has the following advantages: it completely avoids the problem of the drainage nozzles of the drainage adapter overlapping or even getting stuck with each other, eliminates the manual sorting process, improves production efficiency, reduces production costs, and at the same time does not require major changes to the structure of the existing drainage adapter.

[0060] The dimensions and values ​​described herein should not be understood as being strictly limited to the exact numerical values ​​recited. Instead, unless otherwise specified, each dimension is intended to mean both the recited value and a functionally equivalent range surrounding that value. For example, a dimension disclosed as "30.5°" is intended to mean "approximately 30.5°."

[0061] Although some embodiments of the present disclosure have been shown and described, it will be appreciated by those skilled in the art that changes may be made to these embodiments without departing from the principles and spirit of the disclosure, the scope of which is defined in the claims and their equivalents.

Claims

1. A flow diversion adapter (10), comprising: A cylindrical base (100) having a container connection portion (200) and a lid connection portion (300) provided on both axial sides thereof; and A drainage nozzle (400) located radially inside the base (100), the center line of the drainage nozzle (400) coinciding with the center line of the base (100). In the axial direction of the base (100), an inlet (401) is provided at one end of the drainage nozzle (400) close to the container connection portion (200), and an outlet (402) is provided at the other end close to the lid connection portion (300). A drainage channel connecting the inlet (401) and the outlet (402) is provided inside the drainage nozzle (400), and a plurality of ribs (403) extending along the drainage direction of the drainage nozzle (400) are provided on the inner wall of the drainage channel.

2. The diversion adapter (10) according to claim 1, wherein, The rib (403) is elongated, and the height of the rib (403) gradually decreases along the drainage direction.

3. The diversion adapter (10) according to claim 1 or 2, wherein, The rib (403) is arranged symmetrically with respect to a cross-section along the center line of the drainage channel.

4. The flow guiding adapter (10) according to claim 3, wherein, The number of the ribs (403) is 4 - 8, and 2 - 4 ribs (403) are distributed on each side of a cross-section along the center line of the drainage channel. With the center line as the center of the circle, the 2 - 4 ribs (403) respectively form central angles in the range of 0° - 70.2°, 25.4° - 116° or 105° - 135° with the cross-section along the center line of the drainage channel.

5. The drainage adapter (10) according to claim 3, wherein: The number of the ribs (403) is 6, and three ribs (403) are distributed on each side of a cross-section along the center line of the drainage channel. With the center line as the center of the circle, the three ribs (403) respectively form central angles of 25.4°, 70.2° and 115° with the cross-section along the center line of the drainage channel.

6. The drainage adapter (10) according to claim 3, wherein: The side wall of the drainage channel has a through hole (404) penetrating the entire drainage channel. Among them, two of the ribs (403) are arranged adjacent to the through hole (404) and parallel to the through hole (404).

7. The flow guiding adapter (10) according to claim 6, wherein, With the center line of the drainage channel as the center of the circle, the two through side edges (405) of the through hole (404) are arranged to span a central angle in the range of 50° - 65°, and the two through side edges (405) are arranged symmetrically with respect to a cross-section along the center line of the drainage channel.

8. The flow guiding adapter (10) according to claim 7, wherein, With the center line of the drainage channel as the center of the circle, the two through side edges (405) of the through hole (404) are arranged to span a central angle of 30.5°.

9. The flow guiding adapter (10) according to claim 1 or 2, wherein, The rib (403) includes a plurality of mutually parallel sub-ribs (403).

10. The drainage adapter (10) according to claim 6, further comprising: An annular connecting portion (500), the annular connecting portion (500) being located between the base (100) and the drainage nozzle (400) in the radial direction of the base (100), wherein the inlet (401) of the drainage nozzle (400) is circular, and the drainage nozzle (400) is connected to the base (100) through the annular connecting portion (500), and wherein the annular connecting portion (500) has elasticity to allow the drainage nozzle (400) to displace relative to the base (100).

11. The flow guiding adapter (10) according to claim 10, wherein, The through hole (404) of the drainage channel extends beyond the inlet (401) and extends into the annular connecting portion (500), so that a ventilation notch (501) is formed on the inner circumference of the annular connecting portion (500).

12. The diversion adapter (10) according to claim 11, wherein, The annular connecting portion (500) further includes a retaining eaves (502), the retaining eaves (502) extending from the outer circumference of the annular connecting portion (500) to the inner circumference at the end of the through hole (404), and overhanging on the downstream side of the ventilation notch (501) in a direction opposite to the drainage direction of the drainage nozzle (400).

13. The drainage adapter (10) according to claim 1, wherein: The drainage nozzle (400) is a tongue-shaped member, and the drainage channel is formed by winding the tongue-shaped member.

14. The flow guiding adapter (10) according to claim 1, wherein, The radially inner side of the lid connecting portion (300) has a thread (301) and is detachably connected to the container lid through the thread (301), and wherein at least one overhanging portion (302) extending along the circumference of the base (100) is further provided at the end of the lid connecting portion (300), and the overhanging portion (302) forms a retaining groove (303) in the wall of the lid connecting portion (300).

15. The flow guiding adapter (10) according to claim 14, wherein, A protrusion (304) is provided near the opening of the retaining groove (303), the protrusion protruding towards the overhanging portion (302), one side of the protrusion near the opening being a slope and the side of the protrusion away from the opening being stepped.

16. A container, comprising: A container body (20); A container lid (30); And A flow guiding adapter (10) according to any one of claims 1-15; Wherein, the container body (20) is connected to the container connecting portion (200) of the flow guiding adapter (10), and the container lid (30) is connected to the lid connecting portion (300) of the flow guiding adapter (10).

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