Washing machine drying tunnel filter screen cleaning device

By designing a combination of divergent water flow and guiding structure, the problem of dead corners in the washing machine drying duct filter cleaning was solved, achieving full coverage cleaning of the filter, avoiding impurity residue, and improving the cleaning effect.

CN224259053UActive Publication Date: 2026-05-19WUXI KANGBEITE ELECTRIC APPLIANCE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUXI KANGBEITE ELECTRIC APPLIANCE CO LTD
Filing Date
2025-04-29
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Existing washing machine drying duct filter cleaning devices tend to leave dead corners on the filter, making it difficult to remove some impurities.

Method used

Design a washing machine drying duct filter cleaning device. The water source is sprayed onto the filter in a diffused manner. The combination structure of the box, water inlet and box cover ensures that the water flow covers the entire filter. The water flow is guided by the guide component to avoid dead corners and improve the cleaning effect.

Benefits of technology

It achieves full coverage cleaning of the filter screen, avoids impurity residue, prevents filter screen clogging, and improves the thoroughness and uniformity of cleaning.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224259053U_ABST
    Figure CN224259053U_ABST
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Abstract

The utility model provides a washing machine drying tunnel filter screen cleaning device which comprises a cleaning piece, and the cleaning piece comprises a shell plate and a drying tunnel shell used for sealing and covering a washing machine drying tunnel; the outer cylinder is arranged on one side, far away from the drying tunnel shell, of the shell plate, and the other side of the outer cylinder is used for fixing the filtering piece; the box body is located in the shell plate, the box body and the outer cylinder are coaxially arranged, and an opening of the box body faces the filtering piece; the water inlet nozzle penetrates through the outer cylinder and is communicated with the interior of the box body, and a water source enters the box body from the water inlet nozzle; the box cover covers the opening of the box body, a plurality of water outlet holes are formed in the surface of the box body, and a water source is jetted to the filtering part from the water outlet holes; the front surface of a water source is sprayed on the filter screen in a divergent manner, the filter screen is fully covered by a cleaning surface, impact force is perpendicular to the surface of the filter screen, and impurities are washed more thoroughly.
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Description

Technical Field

[0001] This utility model relates to a washing machine accessory, and more particularly to a washing machine drying tunnel filter cleaning device. Background Technology

[0002] Cleaning the filter screen of a washing machine's drying duct is generally done by installing a cleaning device connected to the drying duct above the filter screen. By injecting clean water into the cleaning device, the downward flow of water washes over the filter screen, thereby cleaning the impurities accumulated on the filter screen and discharging the impurities along with the wastewater.

[0003] However, existing cleaning structures tend to leave dead corners on the filter screen, making it difficult to remove some impurities. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this utility model provides a washing machine drying tunnel filter cleaning device. Water is sprayed in a diffused pattern onto the filter from the front, completely covering the filter. The impact force is perpendicular to the filter surface, resulting in more thorough removal of impurities. The technical solution adopted by this utility model is as follows:

[0005] A washing machine drying duct filter cleaning device is used to clean the filter elements inside the washing machine drying duct, comprising a cleaning element, characterized in that the cleaning element includes:

[0006] Shell plate, used to cover the outer shell of the drying tunnel of a washing machine;

[0007] An outer cylinder is disposed on the side of the shell plate away from the outer shell of the drying tunnel, and the other side of the outer cylinder is used to fix the filter element;

[0008] The housing is located inside the shell plate and is coaxially arranged with the outer cylinder, with the opening of the housing facing the filter element;

[0009] A water inlet nozzle penetrates the outer cylinder and communicates with the inside of the box body, allowing water to enter the box body from the water inlet nozzle;

[0010] A lid covers the opening of the box body, and the surface of the lid is provided with several water outlet holes, through which water is directed towards the filter element.

[0011] Wherein, the angle between any of the water outlet holes and the axis of the outer cylinder does not exceed 90°, so that the water source is sprayed in a divergent manner and covers the filter screen on the filter element.

[0012] Furthermore, the cleaning component also includes:

[0013] Two sets of first guide members are located inside the box, and the medium flows along the trajectory of the first guide members.

[0014] Furthermore, the first guide member includes:

[0015] The first guide bar is straight and parallel to the axis of the water inlet nozzle.

[0016] The second guide bar is bent, with its arc center facing the side of the first guide bar;

[0017] The ends of the second guide strips in the two sets of the first guide members are connected.

[0018] Furthermore, the lid is spherical with its center facing the shell plate.

[0019] Furthermore, the lid includes:

[0020] The surface of the cover near the filter element includes:

[0021] A plane, wherein the water outlet on the plane is perpendicular to the plane;

[0022] A conical surface is connected to the outer periphery of the plane, and the water outlet on the conical surface is arranged at an angle to the plane.

[0023] Furthermore, the cleaning component also includes:

[0024] Several connectors are used to connect the outer cylinder and the box body;

[0025] Among them, several of the connecting components divide the space between the outer cylinder and the box body into several hollow channels.

[0026] Furthermore, a second guide, identical to the first guide, is provided on the side of the box cover near the shell plate.

[0027] Advantages of this utility model:

[0028] Using the box, water inlet, and lid, the water flow radiating from the front completely covers the filter screen, thoroughly cleaning it and avoiding dead corners to prevent clogging.

[0029] The first guide component directs the water source to avoid water concentration and improves the uniformity of water spraying. Attached Figure Description

[0030] Figure 1 This is an assembly diagram of the present invention in use.

[0031] Figure 2 This is a first-view assembly drawing of the cleaning components and the filter components.

[0032] Figure 3 This is a second-view assembly drawing of the cleaning components and the filter components.

[0033] Figure 4 This is a schematic diagram of the cleaning component.

[0034] Figure 5 This is a schematic diagram of the structure for removing the lid during cleaning.

[0035] Figure 6 This is a first-view structural diagram of the box lid.

[0036] Figure 7 This is a second-view structural diagram of the box lid.

[0037] In the diagram: 10-cleaning component, 20-filter component, 30-drying tunnel outer shell, 110-shell plate, 120-outer cylinder, 130-box body, 131-first guide component, 131a-first guide strip, 131b-second guide strip, 140-water inlet, 150-box cover, 150a-flat surface, 150b-conical surface, 151-water outlet, 152-second guide component, 160-connector, 170-hollowed-out channel, 210-rubber ring, 220-filter screen. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0039] Please see the appendix Figure 1 -Appendix Figure 5 This application proposes a washing machine drying duct filter cleaning device for cleaning the filter element 20 inside the washing machine drying duct. The device includes a cleaning component 10, which comprises: a shell plate 110 for sealing the drying duct outer shell 30 of the washing machine drying duct; an outer cylinder 120 disposed on the side of the shell plate 110 away from the drying duct outer shell 30, the other side of the outer cylinder 120 for fixing the filter element 20; and a box body 130 located inside the shell plate 110 and coaxially arranged with the outer cylinder 120, the opening of the box body 130 facing the filter element 20. A water inlet 140 penetrates the outer cylinder 120 and communicates with the interior of the housing 130, allowing water to enter the housing 130 from the water inlet 140. A cover 150 covers the opening of the housing 130, and the surface of the cover 150 is provided with a plurality of water outlet holes 151, through which water is sprayed toward the filter element 20. The angle between any of the water outlet holes 151 and the axis of the outer cylinder 120 does not exceed 90°, so that the water is sprayed in a divergent manner and covers the filter screen 220 on the filter element 20.

[0040] Specifically, the structure of filter element 20 is as shown in the attached figure. Figure 1As shown, the filter element 20 includes a rubber ring 210 and a filter screen 220. The rubber ring 210 covers the end face of the outer cylinder 120 and is fixed by wrapping the outer cylinder 120 with the elasticity of the rubber ring 210. The filter screen 220 is located on the inner wall of the rubber ring 210 and is bonded and fixed to the rubber ring 210. When impurities enter the drying tunnel housing 30, they are blocked by the filter screen 220 and thus adhere to the surface of the filter screen 220.

[0041] When cleaning the filter screen, water enters the housing 130 from the inlet 140 and then radiates out from the outlet 151 at different angles, exiting the cover 150 and spraying onto the filter screen 220 from the front, washing away the impurities attached to the filter screen 220. Since the outlet 151 is directly opposite the filter screen 220, the impact force received by the filter screen is in the same direction as the water flow, and the impurities are not subjected to tangential force, further avoiding impurity residue and preventing the formation of dead corners in the filter screen.

[0042] In one embodiment, the angle between the water outlet 151 and the axis of the outer cylinder 120 is 0°-45°; if the angle is too large, the water flow at the edge will wash at the outer cylinder 120, resulting in water waste.

[0043] In this embodiment, as a specific example, the lid 150 is spherical, with its center facing the shell plate 110. When the lid 150 is spherical, the axis of the water outlet 151 is aligned with the diameter of the sphere.

[0044] In this embodiment, as another specific example, as shown in the appendix... Figure 6 and attached Figure 7 As shown, the cover 150 includes: a plane 150a on the surface of the cover 150 near the filter element 20, with a water outlet 151 perpendicular to the plane 150a; and a conical surface 150b connected to the outer periphery of the plane 150a, with the water outlet 151 on the conical surface 150b arranged at an angle to the plane 150a. It is easy to understand that for cleaning the filter screen 220, only the rinsing surface of the water source needs to cover the filter screen. Therefore, when the middle part of the cover is the plane 150a, the impact strength of the middle water source can be guaranteed, and when the outer periphery of the cover is the conical surface 150b, the dead corners of the filter screen can be cleaned. Considering that the water outlet 151 on the conical surface 150b needs to cover the edge of the filter screen 220, preferably, the axis of the water outlet 151 on the conical surface 150b can be set perpendicular to the conical surface 150b, or at an angle of less than 30° to the conical surface 150b.

[0045] Please refer to the appendix in this application. Figure 5 In order to guide and divert the water source, avoid water concentration, and improve the uniformity of water spraying, the cleaning component 10 also includes two sets of first guides 131 located inside the box 130, and the medium flows along the trajectory of the first guides 131.

[0046] As one embodiment of this application, the first guide member 131 includes: a first guide bar 131a, which is straight and parallel to the axis of the water inlet 140; and a second guide bar 131b, which is bent and has its arc center facing the first guide bar 131a; wherein the ends of the second guide bars 131b in the two sets of the first guide members 131 are connected.

[0047] In another embodiment of this application, the first guide member 131 is spiral-shaped (not shown in the figure), and the water source enters the box 130 from the water inlet 140 and flows spirally from the middle to the edge or from the middle to the middle.

[0048] Please see the appendix Figure 3 Appendix Figure 4 Appendix Figure 5 The cleaning component 10 further includes: a plurality of connectors 160 connected between the outer cylinder 120 and the box body 130; wherein the plurality of connectors 160 divide the space between the outer cylinder 120 and the box body 130 into a plurality of hollow channels 170.

[0049] Specifically, several connectors 160 are arranged in a ring at equal intervals around the box body 130, so that the space size of each hollow channel 170 is equal. The connectors 160 connect the box body 130 and the outer cylinder 120, which can not only strengthen the structural strength of the cleaning component 10, but also connect the outer cylinder 120 and the box body 130. The hollow channels 170 formed can allow airflow to pass through the shell plate 110 and enter the drying tunnel shell 30, providing uniform drying airflow.

[0050] Please see the appendix Figure 5 and attached Figure 7 To prevent the guide members inside the housing 130 and on the lid 150 from protruding, the water source guiding structure is split. A second guide member 152, identical to the first guide member 131, is provided on the side of the lid 150 near the shell plate 110. When the lid 150 is fastened onto the housing 130, the first guide member 131 and the second guide member 152 are closely fitted together, and the water flows linearly along the first guide member 131 and the second guide member 152.

[0051] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although this utility model has been described in detail with reference to examples, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A washing machine drying duct filter cleaning device for cleaning a filter member (20) in a drying duct of a washing machine, comprising a cleaning member (10), characterized in that, The cleaning component (10) includes: Shell plate (110), used to cover the drying tunnel outer shell (30) of the washing machine drying tunnel. The outer cylinder (120) is disposed on the side of the shell plate (110) away from the outer shell of the drying tunnel (30), and the other side of the outer cylinder (120) is used to fix the filter element (20). The box body (130) is located inside the shell plate (110) and coaxially arranged with the outer cylinder (120), and the opening of the box body (130) faces the filter element (20). A water inlet (140) penetrates the outer cylinder (120) and communicates with the inside of the box (130), allowing water to enter the box (130) from the water inlet (140); A lid (150) covers the opening of the box body (130), and the surface of the lid (150) is provided with a plurality of water outlet holes (151), from which water is ejected to the filter element (20). Wherein, the angle between any of the water outlets (151) and the axis of the outer cylinder (120) does not exceed 90°, so that the water source is sprayed in a divergent manner and covers the filter screen (220) on the filter element (20).

2. The filter cleaning device for a laundry dryer duct according to claim 1, characterized in that, The cleaning component (10) further includes: Two sets of first guide members (131) are located inside the housing (130), and the medium flows along the trajectory of the first guide members (131).

3. The filter cleaning device for a laundry dryer duct according to claim 2, characterized in that, The first guide (131) includes: The first guide bar (131a) is straight and parallel to the axis of the water inlet (140); The second guide bar (131b) is bent, with its arc center facing the first guide bar (131a); The ends of the second guide strips (131b) in the two sets of the first guide members (131) are connected.

4. The laundry dryer lint screen cleaning device of any one of claims 1-3, wherein: The lid (150) is spherical with its center facing the shell plate (110).

5. The filter screen cleaning device for a laundry dryer duct according to any one of claims 1 to 3, wherein The surface of the cover (150) near the filter element (20) includes: A plane (150a), on which a water outlet (151) is perpendicular to the plane (150a); A conical surface (150b) is connected to the outer periphery of the plane (150a), and the water outlet (151) on the conical surface (150b) is arranged at an angle to the plane (150a).

6. The filter cleaning device for a laundry dryer duct according to claim 1, wherein The cleaning component (10) further includes: Several connectors (160) are connected between the outer cylinder (120) and the box body (130); Among them, several of the connecting pieces (160) divide the space between the outer cylinder (120) and the box body (130) into several hollow channels (170).

7. The lint cleaning device of claim 2, wherein: The box cover (150) has a second guide (152) on the side near the shell plate (110), which is the same as the first guide (131).