Drain assembly

Abstract

The application provides a drainage assembly. The drainage assembly comprises a drainage body, a filtering component and a cleaning opening component. The drainage body defines a drainage channel. The filtering component is connected with the drainage body and defines a filtering cavity, the filtering cavity is communicated with the drainage channel, and the filtering component is provided with a window. The cleaning opening component is movable relative to the filtering component, so as to open or close the window. The drainage assembly is easy to clean and convenient to operate.

Description

Technical Field

[0001] This application relates to the field of drainage components, and more particularly to a drainage component for bathrooms. Background Technology

[0002] Existing drainage assemblies include a filter element. The filter element defines a filter chamber. Water drains through a drain hole on the filter element, but debris or clumps of hair can remain inside the filter chamber. Because the filter element is long and closed at one end, it is difficult to clean. Utility Model Content

[0003] Existing technology:

[0004] After careful study and observation by the applicant, the existing drainage assembly includes a drainage body and a filter element. The filter element defines a filter chamber for collecting debris (e.g., hair clumps). The filter element is detachably mounted to the drainage body, allowing the user to remove and empty the filter element when debris needs to be removed.

[0005] Problems existing in the prior art:

[0006] Because the filter element is located inside the pipe, it is made as long as possible to collect debris. Therefore, cleaning the debris is more troublesome for users, requiring them to purchase a brush longer than the filter element to reach into the filter chamber for cleaning.

[0007] In this application:

[0008] The filter component is designed to be openable. For example, in this application, the filter component has a window. The cleaning opening component can move relative to the filter component, thereby opening or closing the window.

[0009] Furthermore, in this application:

[0010] The filter element has a window, and the window is located at least at the bottom of the filter element, so as to facilitate cleaning of debris located at the bottom.

[0011] Technical effects of the technical solution in this application:

[0012] When users clean up debris, they can open the cleaning opening component to open the window, making it easy for users to empty the trash and also easy for users to use their existing brushes to reach into the filter chamber for cleaning.

[0013] More specifically, this application provides a drainage assembly. The drainage assembly includes a drainage body, a filter element, and a cleaning opening element. The drainage body defines a drainage channel. The filter element is connected to the drainage body and defines a filter cavity, which communicates with the drainage channel. The filter element has a window. The cleaning opening element is movable relative to the filter element to open or close the window.

[0014] According to certain specific embodiments, the cleaning opening component and the filtering component are closable.

[0015] According to certain specific embodiments, the filter component is provided with several first drain holes. When the cleaning opening component closes the window, liquid in the filter cavity can flow out of the filter cavity through the several first drain holes. When the cleaning opening component opens the window, objects in the filter cavity can be removed from the filter cavity through the window.

[0016] According to certain specific embodiments, the cleaning opening component is provided with at least one second drain hole, so that when the cleaning opening component closes the window, the liquid in the filter cavity can flow out of the filter cavity through the at least one second drain hole.

[0017] According to certain specific embodiments, at least a portion of the window is located at the bottom of the filtering component.

[0018] According to certain specific embodiments, the drainage channel extends along a central axis, and at least a portion of the window extends circumferentially along the central axis.

[0019] According to certain specific embodiments, the filter component includes a connecting portion, a filter sidewall, and a filter bottom wall. The filter sidewall is disposed between the connecting portion and the filter bottom wall and is connected to both the connecting portion and the filter bottom wall. The connecting portion is connected to the drainage body, and the connecting portion, the filter sidewall, and the filter bottom wall define a window located below the connecting portion. The connecting portion is annular, the filter sidewall has an arc-shaped cross-section, and the filter bottom wall has a fan-shaped cross-section.

[0020] In some specific embodiments, the cleaning opening component is rotatably connected to the filter bottom wall. The cleaning opening component is detachably connected to the connecting portion, thereby opening or closing the window.

[0021] According to certain specific embodiments, the cleaning opening component includes a closed sidewall and a closed bottom wall, which are connected together. The closed bottom wall is rotatably connected to the filter bottom wall, and the closed sidewall is detachably connected to the connecting part via a snap-fit ​​structure. The cross-section of the closed sidewall is an arc, and the cross-section of the closed bottom wall is a sector shape.

[0022] According to certain specific embodiments, the filter element is detachably connected to the drainage body.

[0023] According to certain specific embodiments, the drainage assembly also includes a plug that is movable relative to the drainage body, thereby opening or closing the drainage channel.

[0024] According to certain specific embodiments, the ratio of the length of the window to the length of the filter component is greater than or equal to 1 / 5 and less than or equal to 4 / 5.

[0025] According to certain specific embodiments, the length of the window is 38mm, the length of the filter element is 53.5mm, and the inner diameter of the filter element is 27mm.

[0026] The drainage assembly of this application is easy to clean and convenient to operate. Specifically, the drainage assembly of this application includes a filter component and a cleaning opening component. The filter component has a window. The cleaning opening component can open or close the window. When the window is closed by the cleaning opening component, objects (e.g., debris or hair clumps) can be stored in the filter cavity. When the window is open, the user can easily empty the objects from the filter cavity, or easily insert an existing household brush directly into the filter cavity for cleaning. Attached Figure Description

[0027] The features and advantages of this application can be better understood by reading the following detailed description with reference to the accompanying drawings, in which the same reference numerals denote the same parts, wherein:

[0028] Figure 1 This is a perspective view of the drainage component of this application;

[0029] Figures 2A-2B yes Figure 1 The filter element shown is viewed from two different perspectives.

[0030] Figure 3 yes Figure 1 A 3D view of the cleaning and opening components shown;

[0031] Figure 4 yes Figure 1 A three-dimensional view of the drainage system shown;

[0032] Figure 5 yes Figure 1 The exploded view of a portion of the drainage assembly is shown. Detailed Implementation

[0033] Various specific embodiments of this application will now be described with reference to the accompanying drawings, which form part of this specification. It should be understood that in the following drawings, the same components are referred to by the same reference numerals.

[0034] Various specific embodiments of this application will now be described with reference to the accompanying drawings, which form part of this specification. It should be understood that although terms indicating direction, such as "upper," "lower," "left," "right," "inner," and "outer," are used herein to describe various exemplary structural portions and elements, their use is merely for illustrative purposes and is based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed herein can be arranged in different orientations, these terms indicating direction are illustrative only and should not be considered limiting.

[0035] Figure 1 This is a perspective view of the drainage assembly of this application, illustrating the specific structure of the drainage assembly. (See attached image.) Figure 1As shown, the drainage assembly includes a drainage body 102, a filter element 104, a plug 106, and a cleaning and opening element 110. The drainage body 102 defines a drainage channel 103. The plug 106 is movable relative to the drainage body 102, thereby opening or closing the drainage channel 103. For example, the plug 106 is rotatable relative to the drainage body 102, thereby opening or closing the drainage channel 103. Alternatively, the plug 106 is movable up and down relative to the drainage body 102, thereby opening or closing the drainage channel 103. The filter element 104 is disposed below and connected to the drainage body 102. The filter element 104 is generally a cylinder with an upper opening, defining a filter cavity 105. The filter cavity 105 extends generally along a central axis X. The filter cavity 105 communicates with the drainage channel 103. The filter element 104 has a plurality of first drainage holes 112, all of which communicate with the filter cavity 105. In this application, a plurality of first drain holes 112 are arranged in two rows along the central axis X, with five first drain holes 112 in each row. The size of the first drain holes 112 is slightly smaller than the size of the object (e.g., debris or hair clumps). A window 109 is provided on the filter element 104. A cleaning opening element 110 is movable relative to the filter element 104 to open or close the window 109. A plurality of second drain holes 113 are provided on the cleaning opening element 110. In this application, a plurality of second drain holes 113 are arranged in two rows along the central axis X, with five first drain holes 112 in each row. The size of the second drain holes 113 is slightly smaller than the size of the object (e.g., debris or hair clumps). The size of the window 109 is larger than the size of the first drain holes 112 and the second drain holes 113, thereby preventing larger objects (e.g., debris or hair clumps) in the filter cavity 105 from leaving the filter cavity 105. When the cleaning opening component 110 closes the window 109, liquid (e.g., water) entering the drainage assembly from the drainage channel 103 can flow out of the filter chamber 105 through the first drain hole 112 and the second drain hole 113, and objects (e.g., debris or hair clumps) entering the drainage assembly from the drainage channel 103 are left in the filter chamber 105. When the cleaning opening component 110 opens the window 109, objects (e.g., debris or hair clumps) located in the filter chamber 105 can be removed from the filter chamber 105 through the window 109. It should be noted that although a specific arrangement of several first drain holes 112 and several second drain holes 113 is shown in this application, any arrangement and number are within the protection scope of this application.

[0036] Figures 2A-2B yes Figure 1 The diagram shows a perspective view of the filter element 104 from two directions, illustrating the specific structure of the filter element 104. (See diagram for reference.) Figure 2AAs shown, the filter component 104 includes a connecting portion 202, a filter sidewall 204, and a filter bottom wall 206. The connecting portion 202 is annular and has a central axis X extending in the vertical direction. The connecting portion 202 is used to connect with the drainage body 102. The filter sidewall 204 is disposed below the connecting portion 202 and connected to the connecting portion 202. The cross-section of the filter sidewall 204 is arc-shaped, and the radius is the same as the radius of the connecting portion 202. In other words, the filter sidewall 204 is formed by extending downward from a portion of the lower edge of the connecting portion 202 along the central axis X. The cross-section of the filter bottom wall 206 is fan-shaped. The filter bottom wall 206 is disposed below the filter sidewall 204 and connected to the filter sidewall 204. The lower edge of the connecting portion 202, the side edges of the opposite sides of the filter sidewall 204, and the side edges of the filter bottom wall 206 define a window 109. Thus, a portion of window 109 is located at the bottom of filter member 104, and a portion of window 109 extends circumferentially along the central axis X. In this application, the filter bottom wall 206 is rotatably connected to the cleaning opening member 110 via a pivot structure (see...). Figure 1 and Figure 5 Specifically, the bottom of the filter bottom wall 206 is provided with two rotating shafts 212. The rotating shafts 212 are arranged perpendicular to the central axis X and can cooperate with the cleaning opening component 110. In this application, the connecting part 202 is detachably connected to the cleaning opening component 110 by a snap-fit ​​structure, thereby opening or closing the window 109 (see...). Figure 1 and Figure 5 Specifically, the snap-fit ​​structure includes a groove 214. The groove 214 is located at the lower edge of the connecting portion 202 (i.e., the upper edge of the window 109) and is recessed inwardly in the thickness direction of the connecting portion 202 (i.e., the direction perpendicular to the central axis X). In other words, in the radial direction of the connecting portion 202, the groove 214 is located in the middle of the connecting portion 202, thereby forming abutment walls on both radial sides of the groove 214.

[0037] like Figure 2B As shown, in this application, the connecting part 202 and the drainage body 102 are detachably connected via a connecting structure, thereby allowing the filter element 104 to be detachably connected to the drainage body 102 (see [link]). Figure 1 Specifically, the connecting structure includes two holes 210. The two holes 210 are disposed opposite to each other on the connecting portion 202. Each hole 210 penetrates the connecting portion 202 radially and is generally L-shaped. In other words, the hole 210 is recessed downwards from the top edge of the connecting portion 202 to form a vertical groove, and then extends circumferentially along the connecting portion 202 to form a transverse groove. The connecting portion 202 is also provided with two blocking members 211. The blocking members 211 are connected to the connecting portion 202, disposed outside the holes 210, and block the vertical groove portion of the holes 210.

[0038] Figure 3 yes Figure 1 The perspective view shown is of the cleaning opening component 110, illustrating its specific structure. (See figure.) Figure 3 As shown, the cleaning opening component 110 includes a closing sidewall 302 and a closing bottom wall 304. The closing sidewall 302 has an arc-shaped cross-section, and its radius is the same as (or approximately the same as) the radius of the filter sidewall 204. The closing bottom wall 304 is disposed below the closing sidewall 302 and connected to it. The closing bottom wall 304 has a fan-shaped cross-section. Thus, the upper edge of the filter sidewall 204 engages with the lower edge of the connecting portion 202, the side edge of the closing sidewall 302 engages with the side edge of the filter sidewall 204, and the side edge of the closing bottom wall 304 engages with the side edge of the filter bottom wall 206, thereby enabling the cleaning opening component 110 to close the window 109. When the cleaning opening component closes the window 109, the filter sidewall 204 and the closing sidewall 302 substantially enclose and form a complete ring, and the closing sidewall 302 and the filter bottom wall 206 substantially form a circle.

[0039] like Figure 3 As shown, the snap-fit ​​structure for detachably connecting the filter element 104 to the cleaning opening element 110 also includes a protrusion 312. The protrusion 312 is located at the upper edge of the closing sidewall 302. The protrusion 312 can be received in the groove 214 of the filter element 104. Thus, when the protrusion 312 is received in the groove 214, the abutment walls on both radial sides of the groove 214 hold the protrusion 312 in place to close the window 109. When the protrusion 312 leaves the groove 214, the cleaning opening element 110 opens the window 109.

[0040] like Figure 3 As shown, the rotating shaft structure for rotatably connecting the filter element 104 and the cleaning opening element 110 also includes two receiving portions 314. The two receiving portions 314 are disposed at the bottom of the closed sidewall 302 and are used to receive the two rotating shafts 212 on the filter element 104, so that the filter element 104 remains connected to the cleaning opening element 110 regardless of whether the protrusion 312 is received in the groove 214 or the protrusion 312 is removed from the groove 214.

[0041] like Figure 3As shown, the cleaning opening component 110 is also provided with a blocking member 315. The blocking member 315 is located below the closed bottom wall 304 and between the two receiving portions 314. The blocking member 315 is configured to prevent the rotating shaft 212 from disengaging from the receiving portion 314 after the rotating shaft 212 is inserted into the receiving portion 314. Specifically, the drainage assembly is exemplary made of plastic and therefore has a certain degree of deformability. During the insertion of the rotating shaft 212 into the receiving portion 314, there is slight interference between the blocking member 315 and the receiving portion 314, but because the drainage assembly has a certain degree of deformability, a slight force can be applied when inserting the rotating shaft 212 into the receiving portion 314, thereby causing the drainage assembly to deform and insert the rotating shaft 212 into the receiving portion 314. After the rotating shaft 212 is inserted into the receiving portion 314, no force is applied to the rotating shaft 212 and the receiving portion 314, so the slight interference between the blocking member 315 and the receiving portion 314 ensures that the rotating shaft 212 is accommodated in the receiving portion 314.

[0042] It should be noted that, although the embodiments of this application show that the filter sidewall 204 of the filter component 104 and the closed sidewall 302 of the cleaning opening component 110 each occupy half (or approximately half) to enclose and form the sidewall of the cylindrical filter cavity 105, in other embodiments, at least a portion of the window 109 extends circumferentially along the central axis X, so that at least a portion of the filter cavity 105 can be opened in the circumferential direction to facilitate cleaning of the filter cavity 105, all of which are within the scope of protection of this application.

[0043] It should also be noted that, although the embodiments of this application show that the bottom wall 206 of the filter element 104 and the closed bottom wall 304 of the cleaning opening element 110 each occupy half, thereby forming the bottom wall of the cylindrical filter cavity 105, in other embodiments, at least a portion of the window 109 is located at the bottom of the filter element 104, so that a portion of the bottom of the filter cavity 105 can be opened, thereby facilitating the cleaning of the filter cavity 105, all of which are within the scope of protection of this application.

[0044] It should also be noted that although the embodiments of this application show a cylindrical filter cavity 105, in other embodiments, the filter component 104 may be of other shapes, so that filter cavities 105 of other shapes (e.g., cuboids) are also within the scope of protection of this application.

[0045] It should also be noted that, although the embodiments of this application show that the bottom of the filter component 104 and the bottom of the cleaning opening component 110 are rotatably connected by a pivot structure, and the top of the filter component 104 and the top of the cleaning opening component 110 are connected by a snap-fit ​​structure to allow the cleaning opening component 110 to open and close the window 109, in other embodiments, the cleaning opening component 110 and the filter component 104 are openably and closably connected, so that both opening and closing the window 109 are within the protection scope of this application. For example, in one embodiment, the filter component 104 and the cleaning opening component 110 can be openably and closably connected to each other by a detachable structure (e.g., a nut, a pin, etc.) to open and close the window 109. In another embodiment, when the cleaning opening component 110 opens the window 109, the filter component 104 and the cleaning opening component 110 can be completely separated.

[0046] Figure 4 yes Figure 1 The diagram shows a perspective view of the drainage body 102 to illustrate its specific structure. (See diagram for reference.) Figure 4 As shown, the drainage body 102 includes an abutment portion 402 and a converging portion 404. The abutment portion 402 is a generally annular plate that defines a drainage channel 103. The outer diameter of the abutment portion 402 is larger than the outer diameter of the filter element 104. The converging portion 404 is disposed below the abutment portion 402 and connected to it. The converging portion 404 includes a neck 412 and four support arms 414. The four support arms 414 are disposed between the abutment portion 402 and the neck 412 and are evenly distributed circumferentially. The neck 412 is generally annular, and the diameter of the neck 412 is smaller than the diameter of the drainage channel 103.

[0047] It should be noted that although four support arms 414 are shown in this application, at least two support arms 414 are within the protection scope of this application.

[0048] like Figure 4 As shown, the connection structure for detachably connecting the filter element 104 to the drainage body 102 also includes two protrusions 416. Figure 4Only one protrusion 416 is shown in the diagram. Two protrusions 416 are disposed opposite to each other on the upper part of the two support arms 414 and extend outward from the support arms 414. The protrusions 416 can mate with the holes 210 on the filter component 104. Specifically, the protrusions 416 can enter the vertical groove of the hole 210 from the top edge of the connecting part 202. After moving downward to the bottom of the vertical groove, the protrusions 416 move circumferentially to the end of the transverse groove. The outer diameter of the protrusions 416 is slightly larger than the inner diameter of the connecting part 202. When the protrusions 416 enter the vertical groove of the hole 210, the protrusions 416 abut against the inner wall of the blocking member 211, thereby causing the connecting part 202 to deform slightly. When the protrusions 416 enter the transverse groove of the hole 210, the protrusions 416 pass over the blocking member 211 and are blocked by the blocking member 211, thereby remaining in the hole 210. When the protrusion 416 is located in the hole 210 on the filter element 104, the filter element 104 is connected to the drain body 102, allowing liquids and objects entering the drain assembly from the drain channel 103 to enter the filter chamber 105. When the protrusion 416 is removed from the hole 210 on the filter element 104, the filter element 104 is separated from the drain body 102, allowing the user to empty objects (e.g., debris or clumps of hair) from the upper opening of the filter chamber 105, thereby cleaning the filter chamber 105.

[0049] It should be noted that although this application shows the filter element 104 and the drainage body 102 detachably connected via a connecting structure, in other embodiments, the filter element 104 and the drainage body 102 may also be detachably connected via other structures (e.g., threads), all of which are within the scope of protection of this application. It should also be noted that although this application shows the filter element 104 and the drainage body 102 detachably connected, in other embodiments, the filter element 104 and the drainage body 102 may also be fixedly connected.

[0050] Figure 5 yes Figure 1 The exploded view of the drainage body 102 shown illustrates the removability of the drainage assembly when the user cleans the filter chamber 105, thus demonstrating the usage process. Figure 5 As shown, when a user wants to clean the filter chamber 105, the user can open the window 109. Specifically, the user can push the protrusion 312 on the cleaning opening part 110 outward, so that the protrusion 312 disengages from the groove 214 on the filter part 104. Thus, the window 109 is opened, and the user can not only empty the objects in the filter chamber 105, but also reach in and use a brush that is readily available at home to scrape off any hair or grease that may be tangled on the inner wall of the filter chamber 105, thereby thoroughly cleaning the filter chamber 105.

[0051] Furthermore, it is understood that when a user wants to clean the filter chamber 105, the user can also separate the drain body 102 and the filter component 104 to empty the contents of the filter chamber 105. Specifically, the user can hold the drain body 102 with one hand and the filter component 104 with the other. The user rotates the filter component 104 circumferentially relative to the drain body 102, causing the protrusion 416 of the filter component 104 to abut against the inner wall of the blocking member 211, resulting in a slight deformation of the filter component 104. The protrusion 416 on the drain body 102 then moves circumferentially a certain distance until it enters the bottom of the vertical groove in the hole 210. Subsequently, the user pulls the filter component 104 away from the drain body 102, causing the protrusion 416 to move within the vertical groove of the hole 210 and disengage from the hole 210 in the filter component 104. Thus, the user separates the drain body 102 and the filter component 104.

[0052] In embodiments of this application, the length of the filter element 104 (i.e., the height of the filter element 104 along the central axis X) is approximately 53.5 mm, the inner diameter of the filter element 104 is approximately 27 mm, the outer diameter of the filter element 104 is approximately 30 mm, and the length of the window 109 (i.e., the height of the window 109 along the central axis X) is approximately 38 mm. In other embodiments, the ratio of the length of the window 109 to the length of the filter element 104 is greater than or equal to 1 / 5 and less than or equal to 4 / 5, thereby facilitating the cleaning of the filter cavity 105.

[0053] The drainage assembly of this application can be inserted into a bathroom drain pipe. As an example, the inner diameter of the drain pipe is approximately 35 mm. The outer diameter of the filter element 104 in the drainage assembly of this application is approximately 30 mm. The filter element 104 can be inserted into the drain pipe, and because the outer diameter of the drainage body 102 is larger than the outer diameter of the drain pipe, the drainage assembly can be held in place on the drain pipe. A gap exists between the outer surface of the filter element 104 and the inner surface of the drain pipe, facilitating the outflow of liquid through this gap.

[0054] In the prior art, the inventors of this application have discovered that, in order to adapt the drainage assembly to the drainage pipe (e.g., the pipe's inner diameter is approximately 35 mm) and have a certain storage capacity, the filter element of the drainage assembly is relatively long (e.g., the filter element is approximately 53.5 mm long). Therefore, the user needs to use a specific component (e.g., a long brush longer than the filter element) to extend into the filter chamber from the drain channel in the plug for cleaning. This cleaning method is cumbersome and easily leaves residue at the bottom of the filter chamber.

[0055] The drainage assembly of this application is easy to clean and convenient to operate. Specifically, the drainage assembly of this application includes a filter component and a cleaning opening component. The filter component has a window. The cleaning opening component can open or close the window. When the window is closed by the cleaning opening component, objects (e.g., debris or hair clumps) can be stored in the filter cavity. When the window is open, the user can easily empty the objects from the filter cavity, or easily clean the filter cavity by directly inserting a household brush.

[0056] Although this disclosure has been described in conjunction with examples of the embodiments outlined above, various alternatives, modifications, variations, improvements, and / or substantially equivalents, whether known or currently or soon to be foreseen, will likely be apparent to those skilled in the art. Furthermore, the technical effects and / or technical problems described herein are exemplary and not limiting; therefore, the disclosures herein may be used to solve other technical problems and have other technical effects and / or can solve other technical problems. Accordingly, the examples of embodiments of this disclosure as set forth above are intended to be illustrative and not limiting. Various changes may be made without departing from the spirit or scope of this disclosure. Therefore, this disclosure is intended to include all known or previously developed alternatives, modifications, variations, improvements, and / or substantially equivalents.

Claims

1. A drainage assembly, characterized in that, include: A drainage body (102) defines a drainage channel (103); A filter element (104) is connected to the drainage body (102) and defines a filter cavity (105), the filter cavity (105) communicating with the drainage channel (103), and the filter element (104) is provided with a window (109); and Cleaning opening component (110) is movable relative to the filter component (104) to open or close the window (109).

2. The drainage assembly according to claim 1, characterized in that: The cleaning opening component (110) is closably connected to the filter component (104).

3. The drainage assembly according to claim 1, characterized in that: The filter component (104) is provided with several first drain holes (112); When the cleaning opening component (110) closes the window (109), the liquid in the filter cavity (105) can flow out of the filter cavity (105) through the plurality of first drain holes (112); When the cleaning opening component (110) opens the window (109), objects located in the filter cavity (105) can be removed from the filter cavity (105) through the window (109).

4. The drainage assembly according to claim 1, characterized in that: The cleaning opening component (110) is provided with at least one second drain hole (113), so that when the cleaning opening component (110) closes the window (109), the liquid in the filter cavity (105) can flow out of the filter cavity (105) through the at least one second drain hole (113).

5. The drainage assembly according to claim 1, characterized in that: At least a portion of the window (109) is located at the bottom of the filter element (104).

6. The drainage assembly according to claim 1, characterized in that: The drainage channel (103) extends along the central axis, and at least a portion of the window (109) extends circumferentially along the central axis.

7. The drainage assembly according to claim 1, characterized in that: The filter component (104) includes a connecting part (202), a filter sidewall (204), and a filter bottom wall (206). The filter sidewall (204) is disposed between the connecting part (202) and the filter bottom wall (206) and is connected to the connecting part (202) and the filter bottom wall (206). The connecting part (202) is connected to the drainage body (102), and the connecting part (202), the filter sidewall (204) and the filter bottom wall (206) define the window (109) located below the connecting part (202); The connecting part (202) is an annular ring, the cross-section of the filter sidewall (204) is an arc, and the cross-section of the filter bottom wall (206) is a fan shape.

8. The drainage assembly according to claim 7, characterized in that: The cleaning opening component (110) is rotatably connected to the filter bottom wall (206); The cleaning opening component (110) is detachably connected to the connecting part (202) to open or close the window (109).

9. The drainage assembly according to claim 8, characterized in that: The cleaning opening component (110) includes a closed side wall (302) and a closed bottom wall (304), and the closed side wall (302) and the closed bottom wall (304) are connected; The closed bottom wall (304) is rotatably connected to the filter bottom wall (206), and the closed side wall (302) is detachably connected to the connecting part (202) through a snap-fit ​​structure; The cross-section of the closed sidewall (302) is an arc, and the cross-section of the closed bottom wall (304) is a fan shape.

10. The drainage assembly according to claim 1, characterized in that: The filter element (104) is detachably connected to the drainage body (102).

11. The drainage assembly according to claim 1, characterized in that, Also includes: A plug (106) is movable relative to the drainage body (102) to open or close the drainage channel (103).

12. The drainage assembly according to claim 1, characterized in that: The ratio of the length of the window (109) to the length of the filter element (104) is greater than or equal to 1 / 5 and less than or equal to 4 / 5.

13. The drainage assembly according to claim 12, characterized in that: The length of the window (109) is 38 mm, the length of the filter element (104) is 53.5 mm, and the inner diameter of the filter element (104) is 27 mm.

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