Connection plug for pipe self-cleaning

Abstract

The utility model discloses a kind of for pipeline self-cleaning's connecting plug, it includes shell, shell is suitable for and with the pipeline of water jet mouth connection;Water baffle, the water baffle for blocking water flow is provided with water baffle main part, water baffle main part is connected in shell interior, at least one of water baffle main part and shell is formed with the air inlet for sucking outside air, water baffle main part is used to guide clean water flow to the suction section of pipeline during water jet mouth water spraying process. Thus, by setting the connecting plug, it can be by water baffle to guide clean water sprayed by water jet mouth to form scouring effect to suction section, and the suction force formed by combining relevant structure to clean water, to realize pipeline self-cleaning effect, and simple structure, convenient operation.

Description

Technical Field

[0001] This utility model relates to the field of cleaning equipment technology, and in particular to a connecting plug for self-cleaning pipelines. Background Technology

[0002] Most fabric cleaning machines currently available have two water tanks: one for clean water and the other for wastewater. However, during the wastewater recycling process, the wastewater contains many impurities that easily adhere to the inner wall of the wastewater pipes. As a result, after long-term use of the fabric cleaning machine, a large amount of dirt, hair, or residual cleaning solution will accumulate inside the wastewater pipes, causing blockages or bacterial growth.

[0003] In related technologies, some fabric cleaning machines are equipped with a self-cleaning structure, which connects the self-cleaning head to the end of the hose to self-clean the suction pipe. This structure has a spray nozzle connection end and a sewage inlet connection end, making it complex. Utility Model Content

[0004] This utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one objective of this utility model is to provide a connecting plug for self-cleaning pipes, which can guide the clean water sprayed from the nozzle through the baffle plate to create a flushing effect on the suction section, and combined with the suction force formed by the clean water by the related structure, thereby achieving the self-cleaning effect of the pipes. Moreover, the structure is simple and the operation is convenient.

[0005] According to a first aspect of the present invention, a self-cleaning connector for a pipe includes: a housing adapted to be connected to a pipe having a spray nozzle; a baffle plate for blocking water flow, the baffle plate having a baffle body connected inside the housing, at least one of the baffle body and the housing forming an air inlet for drawing in external air, the baffle body being used to guide clean water to the suction section of the pipe during water spraying from the spray nozzle.

[0006] Therefore, by setting this connection plug, the water sprayed from the nozzle can be guided by the baffle plate to create a flushing effect on the suction section. Combined with the suction force of the water generated by the related structure, the pipe can achieve a self-cleaning effect. Moreover, the structure is simple and the operation is convenient.

[0007] In some examples of this utility model, the baffle plate is provided with a baffle rib, which is connected to the side of the baffle body near the spray nozzle. The baffle rib and the baffle body together form a guide channel that extends radially along the shell and opens toward the pipe, so as to guide clean water to flow to the suction section of the pipe during the spraying process at the spray nozzle.

[0008] In some examples of this utility model, the extension dimension of the flow channel along the radial direction of the housing is L, and the inner diameter dimension of the housing is d. L and d satisfy the relationship: 0.5d < L < d.

[0009] In some examples of this utility model, the water-blocking rib includes: a first water-blocking rib segment located on the side close to the water nozzle; and a second water-blocking rib segment connected to the first water-blocking rib segment, located on the side away from the water nozzle; wherein, along the axial direction of the housing, the length of the first water-blocking rib segment is greater than the length of the second water-blocking rib segment.

[0010] In some examples of this utility model, the first water-blocking rib segment includes: an arc segment and a first straight segment, the first straight segment being connected to both ends of the arc segment and arranged parallel to each other, and the first straight segments at both ends of the arc segment being respectively connected to the corresponding second water-blocking rib segment; wherein, the pipe includes a spray nozzle having the spray orifice, and the arc segment and the first straight segment are adapted to at least partially surround the spray nozzle.

[0011] In some examples of this utility model, the first water-blocking rib segment includes: two parallel second straight segments arranged along the flow direction of the flow channel, one side of the two second straight segments being connected to both ends of the second water-blocking rib segment and the other side being connected to the inner wall of the shell.

[0012] In some examples of this utility model, at least a portion of the water-blocking ribs are configured as bent, and the shape formed by the water-blocking ribs being connected to a portion of the inner wall of the shell is a closed loop.

[0013] In some examples of this utility model, the outer wall of the housing is provided with at least two air inlets, which are evenly spaced along the circumference of the housing and located on both sides of the flow direction of the flow guide channel.

[0014] In some examples of this utility model, the water-blocking body is provided with at least two air inlets, and the at least two air inlets are respectively located on both sides of the flow direction of the flow guiding channel.

[0015] In some examples of this utility model, the sum of the areas of the air inlets is S, and S satisfies the relationship: S > 300mm 2 .

[0016] In some examples of this utility model, the pipe is provided with a first snap-fit ​​part, and the housing is provided with a second snap-fit ​​part, wherein the first snap-fit ​​part and the second snap-fit ​​part are snap-fitted together.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0019] Figure 1 This is an exploded view of the connecting plug and cleaning equipment according to an embodiment of the present utility model;

[0020] Figure 2 yes Figure 1 Enlarged view of region A in the middle;

[0021] Figure 3 This is a schematic diagram of the connecting plug according to an embodiment of the present utility model;

[0022] Figure 4 This is a cross-sectional view of the connecting plug according to an embodiment of the present utility model;

[0023] Figure 5 This is a bottom view of the connecting plug according to an embodiment of the present utility model;

[0024] Figure 6 This is a schematic diagram of the structure of a connecting plug according to another embodiment of the present invention;

[0025] Figure 7 This is a structural schematic diagram of the connecting plug from another angle according to another embodiment of the present invention;

[0026] Figure 8 This is a structural schematic diagram of a connecting plug according to another embodiment of the present invention.

[0027] Figure label:

[0028] 100. Connecting plug; 200. Cleaning equipment; 201. Pipe; 202. Spray nozzle; 2021. Spray outlet; 203. Suction section; 204. Partition; 205. First snap-fit ​​part;

[0029] 10. Housing; 11. Air inlet; 12. Airflow channel; 13. Second snap-fit ​​part;

[0030] 20. Water barrier plate; 21. Water barrier body; 22. Water barrier rib; 221. First water barrier rib segment; 2211. Arc segment; 2212. First straight segment; 2213. Second straight segment; 222. Second water barrier rib segment. Detailed Implementation

[0031] The embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present invention are described in detail below.

[0032] The following is for reference. Figures 1-8 The connecting plug 100 for self-cleaning of pipe 201 according to an embodiment of the present utility model can guide the clean water sprayed from the spray nozzle 2021 through the baffle plate 20 to form a flushing effect on the suction section 203, and combined with the suction force formed by the related structure on the clean water, thereby achieving the self-cleaning effect of pipe 201. Moreover, the structure is simple and the operation is convenient.

[0033] Combination Figures 1-8 As shown, the self-cleaning connector 100 for pipe 201 according to the first aspect embodiment of the present invention includes a housing 10 and a baffle plate 20. The housing 10 serves as a load-bearing structural component of the main external contour of the connector 100, protecting the internal structure. The baffle plate 20 structurally blocks the water flow from the nozzle 2021, thereby forcibly changing the flow direction of the water.

[0034] Specifically, the housing 10 is adapted to connect to the pipe 201 having a spray nozzle 2021. A baffle plate 20 for blocking water flow is provided with a water-blocking body 21, which is connected inside the housing 10. At least one of the water-blocking body 21 and the housing 10 forms an air inlet 11 for drawing in external air. The water-blocking body 21 guides clean water to the suction section 203 of the pipe 201 during the spraying process from the spray nozzle 2021. For example, the pipe 201 with the spray nozzle 2021 can be a cleaning pipe 201 of a fabric cleaning machine.

[0035] Specifically, the housing 10 of the connecting plug 100 can be adapted to and connected to the pipe 201 with the spray nozzle 2021, so that the connecting plug 100 and the pipe 201 can be connected into a solid whole, which is conducive to improving the working stability of the self-cleaning of the pipe 201; the water-blocking body 21 is connected inside the housing 10, and the water-blocking body 21 faces the water flow sprayed from the spray nozzle 2021. The water-blocking body 21 can block the water flow. After being blocked by the water-blocking body 21, the water flow bounces back to the suction section 203, thereby achieving the flushing effect of the water flow on the suction section 203.

[0036] Furthermore, since the spray nozzle 2021 and the suction section 203 are located on opposite sides of the radial direction of the pipe 201, the water flow from the spray nozzle 2021 is forced to change its flow path after being blocked by the water-blocking body 21. This allows the clean water on one side of the pipe 201 to be guided to the suction section 203 on the other side of the pipe 201, thereby achieving a self-cleaning effect for the pipe 201 and avoiding manual cleaning of the pipe 201 by the user. In conjunction with the suction force formed by the related structure (such as the suction device) on the clean water, the flushing force of the clean water on the suction section 203 can be increased, thereby effectively reducing the probability of pipe 201 blockage, bacterial growth and odor generation. On the other hand, it can also prevent the sewage flushing the suction section 203 from flowing out from the air inlet 11 to the outside, thereby avoiding the user's cleaning burden again.

[0037] Moreover, compared to the existing self-cleaning structure equipped on fabric cleaning machines (which has a water spray nozzle connection end and a sewage inlet connection end), the embodiment in this case can achieve the self-cleaning effect of pipe 201 without setting a connection end, which is simpler in structure and more practical.

[0038] Therefore, by setting the connection plug 100, the water sprayed from the nozzle 2021 can be guided by the baffle plate 20 to create a flushing effect on the suction section 203. Combined with the suction force of the water formed by the related structure, the pipe 201 can achieve a self-cleaning effect. Moreover, the structure is simple and the operation is convenient.

[0039] According to some optional embodiments of the present invention, combined with Figures 1-8 As shown, the baffle plate 20 is provided with a baffle rib 22. The baffle rib 22 is connected to the side of the baffle body 21 near the spray nozzle 2021. The baffle rib 22 and the baffle body 21 together form a guide channel 12 that extends radially along the housing 10 and opens toward the pipe 201, so as to guide clean water to flow to the suction section 203 of the pipe 201 during the spraying process of the spray nozzle 2021.

[0040] Among them, the water-blocking rib 22 is connected to the side of the water-blocking body 21 near the water nozzle 2021. The water-blocking rib 22 can block the water flow in another direction, ensuring the concentration of the water flow and preventing the water flow after rebounding from the water-blocking body 21 from being too dispersed, thereby increasing the flushing force of the water flow on the suction section 203.

[0041] Furthermore, since the spray nozzle 2021 and the suction section 203 are located on opposite sides of the radial direction of the pipe 201, the water-blocking rib 22 and the water-blocking body 21 together form a guide channel 12 that extends radially along the shell 10 and opens toward the pipe 201. That is, the water flow sprayed from the spray nozzle 2021 is forced to change its flow path after being blocked by the water-blocking rib 22 and the water-blocking body 21. This can guide the clean water on one side of the pipe 201 to the suction section 203 on the other side of the pipe 201, thereby achieving the self-cleaning effect of the pipe 201 and avoiding the need for users to manually clean the pipe 201. In addition, with the suction force formed by related structures (such as suction devices) on the clean water, on the one hand, the flushing force of the clean water on the suction section 203 can be increased, thereby effectively reducing the probability of pipe 201 blockage, bacterial growth and odor generation. On the other hand, it can also prevent the sewage flushing the suction section 203 from flowing out from the air inlet 11 to the outside, thereby avoiding the user's cleaning burden again.

[0042] Specifically, in combination Figure 3 and Figure 5 As shown, the extension dimension of the flow channel 12 along the radial direction of the housing 10 is L, and the inner diameter dimension of the housing 10 is d. L and d satisfy the relationship: 0.5d < L < d.

[0043] It is understandable that when the radial extension length of the flow channel 12 does not exceed half the inner diameter of the housing 10, the radial extension length of the flow channel 12 is too small. This will result in the water flow rebound angle after being blocked by the baffle plate 20 being too small, which will result in the clean water covering the suction section 203 being too small, causing the suction section 203 to be not thoroughly cleaned and resulting in the problem of stain residue. Since the flow channel 12 is formed by the baffle rib 22 and the baffle body 21, and the baffle rib 22 occupies a certain structural dimension in the radial direction of the housing 10, the radial extension length of the flow channel 12 in the housing 10 does not exceed the inner diameter of the housing 10.

[0044] In summary, by limiting the radial extension dimension of the flow channel 12 in the housing 10 to a reasonable range, the flushing coverage of the suction section 203 by the water flow can be effectively guaranteed, thereby ensuring that the suction section 203 is thoroughly cleaned. For example, the radial extension dimension of the flow channel 12 in the housing 10 can be 0.6d, 0.7d, 0.8d, and 0.9d, and is not limited thereto.

[0045] According to some optional embodiments of the present invention, combined with Figure 3 , Figure 4 , Figure 6 and Figure 8As shown, the water-blocking rib 22 includes a first water-blocking rib segment 221 and a second water-blocking rib segment 222. The first water-blocking rib segment 221 is located on the side closer to the water nozzle 2021, and the second water-blocking rib segment 222 is connected to the first water-blocking rib segment 221 and is located on the side away from the water nozzle 2021. Along the axial direction of the housing 10, the length of the first water-blocking rib segment 221 is greater than the length of the second water-blocking rib segment 222.

[0046] As arranged as described above, since the first water-blocking rib section 221 is located on the side close to the water nozzle 2021, the length of the first water-blocking rib section 221 along the axial direction of the housing 10 is greater than the length of the second water-blocking rib section 222 along the axial direction of the housing 10. This can shorten the distance between the first water-blocking rib section 221 and the water nozzle 2021, thereby helping the water flow pre-sprayed by the first water-blocking rib section 221 to play an axial guiding role, preventing the water flow sprayed from the water nozzle 2021 from flowing along an undesirable path, and also forming a shielding effect on the water flow that is not sprayed along the axial direction, thereby ensuring the accuracy of the water flow spray direction and preventing the water flow from being sprayed outside the housing 10.

[0047] Specifically, in combination Figure 3 As shown, the first water-blocking rib segment 221 includes an arc segment 2211 and a first straight segment 2212. The first straight segment 2212 is connected to both ends of the arc segment 2211 and is arranged parallel to each other. The first straight segments 2212 at both ends of the arc segment 2211 are respectively connected to the corresponding second water-blocking rib segment 222.

[0048] Understandably, the first straight segment 2212 is constructed as parallel straight lines to ensure the accuracy and consistency of the processing; the arc segment 2211 is constructed as an arc to reduce stress concentration areas; and one side of the first straight segment 2212 is connected to both ends of the arc segment 2211, while the other side of the first straight segment 2212 is connected to the corresponding second water-blocking rib segment 222. This allows the first water-blocking rib segment 221 to establish a continuous structural connection with the second water-blocking rib segment 222, and also increases the contact area between the water flow and the first water-blocking rib segment 221 through the arc segment 2211, effectively dispersing the force on the water jet in this area and improving the uniformity of the force on the water jet in this area.

[0049] In particular, combined Figures 1-3 As shown, the pipe 201 includes a nozzle 202 with a spray nozzle 2021. The arc segment 2211 and the first straight segment 2212 are adapted to at least partially surround the nozzle 202. This arrangement can, on the one hand, provide an axial guiding effect for the water flow sprayed from the nozzle 2021, and on the other hand, evenly disperse the force of the water flow sprayed on the arc segment 2211, avoid local stress concentration, and thus improve the directional accuracy and dispersion uniformity of the sprayed water flow.

[0050] In addition, the pipe 201 also includes a baffle 204, which is installed inside the pipe 201. The baffle 204 can divide the internal space of the pipe 201 radially. The suction section 203 and the spray nozzle 202 are located on both sides of the baffle 204. This can effectively avoid the risk of mixing between clean water and sewage that has been flushed through the suction section 203, and also facilitate the cleaning of the suction section 203 by the clean water sprayed through the spray nozzle 2021.

[0051] Furthermore, combined Figure 8 As shown, the first water-blocking rib section 221 includes two parallel second straight sections 2213. Along the flow direction of the flow channel 12, one side of the two second straight sections 2213 is connected to both ends of the second water-blocking rib section 222, and the other side of the two second straight sections 2213 is connected to the inner wall of the housing 10.

[0052] The two ends of the second straight segment 2213 are respectively connected between the second water-retaining rib segment 222 and the inner wall of the shell 10. This connects the first water-retaining rib segment 221 and the shell 10 into a whole, thereby improving their structural strength and the overall structural reliability. In addition, the second straight segment 2213 is constructed in a straight line, which simplifies the manufacturing process and improves manufacturing efficiency.

[0053] According to some optional embodiments of the present invention, combined with Figure 3 , Figure 6 and Figure 8 As shown, at least part of the water-retaining ribs 22 are constructed in a bent shape, which helps to change the structural extension direction of the water-retaining ribs 22, and can also reduce the stress concentration area and improve the uniformity of stress distribution.

[0054] Furthermore, the shape formed by the water-blocking rib 22 being connected to part of the inner wall of the shell 10 is a closed loop. This can form a closed force path, thereby effectively improving the structural strength and bending and torsional stiffness of the water-blocking rib 22 and the shell 10. On the other hand, it can also form an all-round shielding effect on the water flow sprayed from the nozzle 2021 in the circumferential direction, preventing the water flow from splashing to the outside of the shell 10 in an undesirable direction.

[0055] According to some optional embodiments of the present invention, combined with Figure 6 and Figure 7 As shown, the outer wall of the housing 10 is provided with at least two air inlets 11. The at least two air inlets 11 are evenly spaced along the circumference of the housing 10, and the at least two air inlets 11 are located on both sides of the flow direction of the flow channel 12.

[0056] The above arrangement ensures that external air can be drawn into the housing 10 more evenly, thereby creating a more uniform and smooth airflow path and improving the rationality of air circulation. Furthermore, since the air inlet 11 is located on both sides of the flow guiding direction of the flow guiding channel 12, this reduces the risk of the water jet splashing outside the housing 10 through the air inlet 11 without interfering with the flow guiding channel 12's function of guiding the water jet.

[0057] According to some optional embodiments of the present invention, combined with Figure 3 , Figure 6 and Figure 8 As shown, the water-blocking body 21 is provided with at least two air inlets 11, and the at least two air inlets 11 are located on both sides of the flow direction of the flow guiding channel 12.

[0058] As arranged as described above, since the air inlet 11 is oriented in the same direction as the intake direction of the pipe 201, it ensures that external air can be drawn into the housing 10 more quickly. Furthermore, the airflow does not need to change its path as it flows into the pipe 201, thus creating a more uniform and smooth airflow path, improving airflow efficiency, and consequently enhancing the suction effect on clean water. Moreover, since the air inlet 11 is located on both sides of the flow guiding direction of the guide channel 12, it reduces the risk of water spraying outside the housing 10 through the air inlet 11 without interfering with the flow guiding channel 12's function of directing the water jet.

[0059] Alternatively, combined Figure 6 and Figure 7 As shown, the water-blocking body 21 is provided with at least two air inlets 11, and the outer wall of the shell 10 is provided with at least two air inlets 11. The air inlets 11 are located on both sides of the flow direction of the flow guide channel 12.

[0060] Alternatively, the water-blocking body 21 is provided with an air inlet 11, which extends circumferentially and is symmetrically arranged on both sides of the flow channel 12.

[0061] Specifically, the sum of the areas of the air inlets 11 is S, and S satisfies the relationship: S > 300mm 2 As arranged as above, the air intake of the air inlet 11 can be guaranteed, thereby effectively ensuring the air intake effect and ensuring the ability to draw in clean water, preventing the problem of stain residue caused by insufficient suction (i.e., air volume) and weak flushing force.

[0062] According to some optional embodiments of the present invention, combined with Figure 2 As shown, the pipe 201 is provided with a first snap-fit ​​part 205, and the housing 10 is provided with a second snap-fit ​​part 13. The first snap-fit ​​part 205 and the second snap-fit ​​part 13 are snap-fitted together.

[0063] As arranged above, the pipe 201 and the housing 10 can be connected as a whole through the first snap-fit ​​part 205 and the second snap-fit ​​part 13. Compared with other connection methods (such as screw connection, adhesive connection, etc.), the snap-fit ​​connection can connect the pipe 201 and the housing 10 into a whole without the need for additional parts, avoiding unnecessary material consumption. It can also provide sufficient holding force to ensure that the two will not loosen or fall off during use. Moreover, the snap-fit ​​connection has a simple structure, reliable connection, and quick and convenient disassembly and installation functions (that is, it can realize the quick connection and separation of the pipe 201 and the housing 10), which can effectively reduce the time and cost required for maintenance and replacement.

[0064] Compared to screw connections, snap-fit ​​connections can effectively ensure the alignment between the pipe 201 and the housing 10, that is, ensure that the water jet from the nozzle 2021 can be sprayed at the desired position of the water-blocking body 21, thereby ensuring the stability of the self-cleaning operation.

[0065] For example, the self-cleaning process of a fabric cleaning machine is described below:

[0066] When the self-cleaning mode is activated, the spray nozzle 2021 sprays water onto the baffle plate 20. The water bounces back after passing through the baffle plate 20, forming a backflow that covers the inner wall of the suction pipe and washes away the dirt. At the same time, the main unit quickly sucks out the sewage and dirt into the sewage tank of the main unit through the suction port.

[0067] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0068] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0069] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0070] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A self-cleaning connector (100) for a pipe (201), characterized in that, include: A housing (10) adapted to be connected to a pipe (201) having a spray nozzle (2021); A baffle plate (20) for blocking water flow is provided with a baffle body (21). The baffle body (21) is connected to the inside of the housing (10). At least one of the baffle body (21) and the housing (10) forms an air inlet (11) for drawing in external air. The baffle body (21) is used to guide clean water to flow to the suction section (203) of the pipe (201) during the water spraying process of the water nozzle (2021).

2. The self-cleaning connector (100) for a pipe (201) according to claim 1, characterized in that, The baffle plate (20) is provided with baffle ribs (22), which are connected to the side of the baffle body (21) near the spray nozzle (2021). The baffle ribs (22) and the baffle body (21) together form a guide channel (12) that extends radially along the shell (10) and opens toward the pipe (201) to guide clean water to flow to the suction section (203) of the pipe (201) during the spraying process of the spray nozzle (2021).

3. The self-cleaning connector (100) for a pipe (201) according to claim 2, characterized in that, Along the radial direction of the housing (10), the extension dimension of the flow channel (12) is L, and the inner diameter dimension of the housing (10) is d. L and d satisfy the relationship: 0.5d < L < d.

4. The self-cleaning connector (100) for a pipe (201) according to claim 2, characterized in that, The water-blocking rib (22) includes: The first water-blocking rib section (221) is located on the side close to the water spray nozzle (2021); The second water-blocking rib section (222) is connected to the first water-blocking rib section (221), and the second water-blocking rib section (222) is located on the side away from the water nozzle (2021); Along the axial direction of the shell (10), the length of the first water-blocking rib section (221) is greater than the length of the second water-blocking rib section (222).

5. The self-cleaning connector (100) for a pipe (201) according to claim 4, characterized in that, The first water-blocking rib section (221) includes: The arc segment (2211) and the first straight segment (2212) are connected to both ends of the arc segment (2211) and are arranged parallel to each other. The first straight segments (2212) at both ends of the arc segment (2211) are respectively connected to the corresponding second water-blocking rib segments (222). The pipe (201) includes a nozzle (202) having the nozzle (2021), and the arc segment (2211) and the first straight segment (2212) are adapted to at least partially surround the nozzle (202).

6. The self-cleaning connector (100) for a pipe (201) according to claim 4, characterized in that, The first water-blocking rib section (221) includes: Two parallel second straight segments (2213) are arranged along the flow direction of the flow channel (12). One side of the two second straight segments (2213) is connected to both ends of the second water-blocking rib segment (222), and the other side is connected to the inner wall of the shell (10).

7. The self-cleaning connector (100) for a pipe (201) according to claim 2, characterized in that, At least a portion of the water-blocking ribs (22) are configured to be bent, and the water-blocking ribs (22) are connected to a portion of the inner wall of the shell (10) to form a closed loop.

8. The self-cleaning connector (100) for a pipe (201) according to claim 2, characterized in that, The outer wall of the housing (10) is provided with at least two air inlets (11), which are evenly spaced along the circumference of the housing (10) and located on both sides of the flow direction of the flow channel (12).

9. The self-cleaning connector (100) for a pipe (201) according to claim 2, characterized in that, The water-blocking body (21) is provided with at least two air inlets (11), and the at least two air inlets (11) are located on both sides of the flow direction of the flow channel (12).

10. The self-cleaning connector (100) for a pipe (201) according to any one of claims 1-9, characterized in that, The sum of the areas of the air inlets (11) is S, and S satisfies the relationship: S > 300 mm 2 .

11. The self-cleaning connector (100) for a pipe (201) according to any one of claims 1-9, characterized in that, The pipe (201) is provided with a first snap-fit ​​part (205), and the housing (10) is provided with a second snap-fit ​​part (13). The first snap-fit ​​part (205) and the second snap-fit ​​part (13) are snap-fitted together.

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