Drainage filter and washing machine

Abstract

The drainage filter comprises a shell and a filtering piece, the shell comprises a shell body, a water inlet, a water outlet and an inner cavity, the water inlet and the water outlet are communicated with the inner cavity, and the drainage filter is suitable for being connected to a drainage pipe between a washing barrel and a drainage valve of the washing machine through the water inlet and the water outlet. The filtering piece is arranged in the inner cavity and located between the water inlet and the water outlet. The drainage filter is installed on the drainage pipe between the washing barrel and the drainage valve of the washing machine, water drained from the washing barrel passes through the drainage pipe and then enters the drainage filter through the water inlet, the filtering piece can be used for filtering impurities in liquid from the washing barrel, and when the impurities pass through the water outlet of the drainage filter, the impurities can be filtered out. The content of impurities in the liquid is reduced, that is, the impurities of water flowing to the drain valve are reduced, so that blockage of the liquid to the drain valve is reduced, the drainage efficiency of the washing machine is improved, blockage of drainage of the washing machine is reduced, and damage to the washing machine is reduced.

Description

Technical Field

[0001] The present disclosure relates to the technical field of washing machines, and in particular, to a drainage filter and a washing machine. Background Art

[0002] Washing machines need to frequently discharge a large amount of water containing impurities during use, but the existing drainage structure has an unsatisfactory drainage effect, resulting in untimely drainage, blockage, and even damage to the washing machine during use. Utility Model Content

[0003] The purpose of the present disclosure is to provide a drainage filter and a washing machine to at least partially solve the technical problems existing in the related art.

[0004] In order to achieve the above object, the present disclosure provides a drainage filter, comprising a housing and a filter element.

[0005] The housing comprises a housing body, a water inlet, a water outlet and an inner cavity, the water inlet and the water outlet are respectively connected to the inner cavity, and the drainage filter is adapted to be connected to a drainage pipe between the washing tub and the drainage valve of the washing machine through the water inlet and the water outlet;

[0006] The filter element is arranged in the inner cavity and located between the water inlet and the water outlet.

[0007] Optionally, the filter element is detachably mounted on the inner cavity.

[0008] Optionally, the housing body further comprises a mounting opening communicating with the inner cavity, wherein the mounting opening is suitable for allowing the filter element to be inserted into or withdrawn from the inner cavity;

[0009] The drainage filter further comprises a cover body, the cover body is connected to the filter element, and the cover body is suitable for sealing and covering the installation port.

[0010] Optionally, the inner wall of the cover is provided with an internal thread section, and the outer shell body is provided with an external thread section;

[0011] The cover body and the shell body are adapted to be threadedly connected by matching the internal thread section with the external thread section.

[0012] Optionally, the filter element comprises a filter element housing and a filter screen structure, and the filter screen structure is arranged inside the filter element housing;

[0013] The filter housing has a first opening and a second opening, wherein the first opening is arranged corresponding to the water inlet, and the second opening is arranged corresponding to the water outlet.

[0014] Optionally, the filter housing comprises a side plate and a first end plate connected to each other, the side plate abutting against the inner wall of the shell, and the contour shape of the outer wall of the side plate is adapted to the shape of the inner wall of the corresponding part of the shell;

[0015] One end of the filter structure is connected to the first end plate, and the filter structure is disposed at the second opening.

[0016] Optionally, the filter structure includes a plurality of filter rods arranged crosswise, and the gaps between the plurality of filter rods are configured as filter ports for liquid to pass through.

[0017] Optionally, the plurality of filter rods are integrally formed; and / or the plurality of filter rods and the filter element housing are integrally formed.

[0018] Optionally, the drainage filter further comprises a threaded fastener for connecting the cover body and the filter element;

[0019] The filter element and the cover body are connected via the threaded fastener.

[0020] Optionally, a second end plate is provided on the filter element, and the second end plate is connected to the cover body via the threaded fastener.

[0021] Optionally, the drainage filter further comprises a sealing member;

[0022] The sealing member is used to seal the cover and the shell body.

[0023] Optionally, the drainage filter further comprises a support member, and a second end plate is provided on the filter member;

[0024] The support member is arranged between the sealing member and the second end plate, and is press-connected to the second end plate and the sealing member.

[0025] Optionally, the axis of the water inlet is perpendicular to the axis of the water outlet.

[0026] According to a second aspect of the present disclosure, there is provided a washing machine comprising a washing tub, a drain valve, a drain pipe connected between the washing tub and the drain valve, and the above-mentioned drain filter;

[0027] The drainage filter is connected to the drainage pipe through the water inlet and the water outlet.

[0028] Through the above technical solution, the drainage filter is installed on the drain pipe between the washing tub and the drain valve of the washing machine, which is equivalent to installing the drainage filter upstream of the drain valve. The water discharged from the washing tub passes through the drain pipe and then enters the drainage filter through the water inlet. The filter element can be used to filter out impurities in the liquid from the washing tub, that is, part of the impurities in the liquid can be filtered into the drainage filter in the drainage filter. When passing through the water outlet of the drainage filter, the impurity content in the liquid is reduced, that is, the impurities in the water flowing to the drain valve are reduced, thereby reducing the blockage of the drain valve by the liquid, thereby improving the drainage efficiency of the washing machine, reducing the blockage of the washing machine drainage, and reducing damage to the washing machine.

[0029] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following detailed description, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0031] Figure 1 is a schematic structural diagram of various components of a drainage filter provided in an exemplary embodiment of the present disclosure in an exploded state;

[0032] Figure 2 1 is a schematic structural diagram of various components of a drainage filter provided by an exemplary embodiment of the present disclosure in an assembled state;

[0033] Figure 3 It is along Figure 2 Schematic cross-sectional view of AA in the figure;

[0034] Figure 4 is a structural schematic diagram of a cover provided by an exemplary embodiment of the present disclosure;

[0035] Figure 5 is a schematic structural diagram of a filter element provided in an exemplary embodiment of the present disclosure;

[0036] Figure 6 It is a schematic diagram of the partial structure of a washing machine provided in an exemplary embodiment of the present disclosure.

[0037] Description of Reference Numerals

[0038] 1000. Washing machine, 100. Drain filter, 10. Filter element, 11. Filter element housing, 111. Side panel, 112. First end plate, 113. Second end plate, 114. Through hole, 12. Filter structure, 121. Filter rod, 122. Filter port, 20. Outer shell, 21. Outer shell body, 22. Water inlet, 23. Water outlet, 24. Inner cavity, 25. Mounting port, 30. Cover, 31. Threaded fastener hole, 40. Threaded fastener, 50. Seal, 60. Support member, 200. Washing tub, 300. Drain pipe, 400. Drain valve. DETAILED DESCRIPTION

[0039] The following describes the specific embodiments of the present disclosure in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present disclosure and are not intended to limit the present disclosure.

[0040] It should be understood in the present disclosure that, in the present disclosure, unless otherwise stated, the directions or positional relationships indicated by the directional words such as "upper" and "lower" are defined based on the drawing directions shown in the corresponding drawings. They are only for the convenience of describing the present disclosure and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific direction, and a specific directional structure and operation. Therefore, they cannot be understood as limitations on the present disclosure. The terms "inside" and "outside" can refer to the inside and outside of the corresponding structural outline. In addition, it should be noted that the terms used, such as "first", "second", "third", etc., are used to distinguish one element from another, and do not have sequentiality or importance. In addition, in the description of the reference drawings, the same mark in different drawings represents the same element.

[0041] It should also be noted that, in the description of this disclosure, unless otherwise expressly specified or limited, the terms "disposed," "connected," "connected," and "installed" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integral connections; and they may refer to direct connections or indirect connections via an intermediary. Those skilled in the art will understand the specific meanings of these terms in this disclosure based on specific circumstances.

[0042] Research has found that the water in the washing tub of a traditional washing machine after washing clothes flows out of the washing machine through the drain pipe after the drain valve in the washing tub is opened. If there are coins, paper clips, or large clothing lint in the washing tub, it is easy for the water to get stuck when passing through the drain valve, causing drainage to be ineffective, and then causing the washing machine to malfunction or the bottom plate to be flooded.

[0043] In view of this, if Figures 1 to 6As shown, the present disclosure provides a drainage filter 100, including an outer shell 20 and a filter element 10, the outer shell 20 includes a shell body 21, a water inlet 22, a water outlet 23 and an inner cavity 24, the water inlet 22 and the water outlet 23 are respectively connected to the inner cavity 24, the drainage filter 100 is suitable for being connected to the drain pipe 300 between the washing tub 200 and the drain valve 400 of the washing machine 1000 through the water inlet 22 and the water outlet 23, the filter element 10 is arranged in the inner cavity 24, and is located between the water inlet 22 and the water outlet 23.

[0044] Through the above technical solution, the drain filter 100 is installed on the drain pipe 300 between the washing tub 200 and the drain valve 400 of the washing machine 1000, which is equivalent to installing the drain filter 100 upstream of the drain valve. The water discharged from the washing tub 200 passes through the drain pipe 300 and then enters the drain filter 100 through the water inlet 22. The filter element 10 can be used to filter impurities in the liquid (such as water) from the washing tub 200, that is, part of the impurities in the liquid can be filtered into the drain filter 100 in the drain filter 100. When passing through the water outlet 23 of the drain filter 100, the impurity content in the liquid is reduced, that is, the impurities in the water flowing to the drain valve 400 are reduced, thereby reducing the blockage of the drain valve 400 by the liquid, thereby improving the drainage efficiency of the washing machine 1000, reducing the blockage of the drainage of the washing machine 1000, and reducing damage to the washing machine 1000.

[0045] The drain filter 100 can be installed in the front section, middle section or rear section of the drain pipe 300, and the present disclosure does not limit this. It only needs to be installed in the front end of the drain valve 400.

[0046] In some embodiments of the present disclosure, the flow path of the liquid discharged from the washing tub 200 is through the drain pipe 300 and the drain filter 100 and then discharged to the drain valve 400, that is, the drain filter 100 is installed between the drain pipe 300 and the drain valve 400, and the water inlet 22 of the drain filter 100 can be connected to the drain pipe 300, and the water outlet 23 of the drain filter 100 can be connected to the drain valve 400 to form a complete drainage channel of the washing machine 1000. The drain filter 100 filters the liquid before reaching the drain valve 400, so that the impurities in the liquid at the drain valve 400 position are reduced, thereby ensuring the drainage efficiency and reducing the blockage of the drainage of the washing machine 1000.

[0047] In this disclosure, Figures 1 to 3 As shown, the filter element 10 can be detachably mounted in the inner cavity 24. This arrangement facilitates the installation, removal and cleaning of the filter element 10.

[0048] In the present disclosure, the connection between the filter element 10 and the housing 20 can be through a suitable detachable connection method such as a detachable screw connection, a threaded connection or a snap-fit ​​connection between the two. As long as the connection between the two is stable and easy to disassemble, the present disclosure does not limit this.

[0049] In this disclosure, Figure 1 As shown, the housing body 21 may further include an installation opening 25 communicating with the inner cavity 24. The installation opening 25 is suitable for inserting or withdrawing the filter element 10 from the inner cavity 24. The drainage filter 100 also includes a cover 30 connected to the filter element 10 and adapted to seal against the installation opening 25. This arrangement allows the filter element 10 to be detachably mounted on the housing 20 while simultaneously sealing the installation opening 25, ensuring that liquid can flow out of the water outlet 23 and preventing liquid from leaking at the installation opening 25. The cover 30 serves to securely connect the filter element 10 to the housing body 21.

[0050] The installation opening 25 is used to install the filter element 10. When the filter element 10 is installed in the installation opening 25, a sealed connection is formed between the cover 30 connected to the filter element 10 and the installation opening 25, thereby sealing the installation opening 25 and preventing liquid leakage at the installation opening 25. After drainage is completed, if impurities accumulate in the filter element 10, the filter element 10 is removed and cleaned. After cleaning, the filter element 10 is then installed in the housing 20 and can be ready for the next filtration of the liquid.

[0051] In this disclosure, Figure 1 As shown, the cover 30 can be provided with an internal thread section on the inner wall, and the outer shell body 21 can be provided with an external thread section. The cover 30 and the outer shell body 21 are suitable for being threadedly connected by the internal thread section and the external thread section. This arrangement can facilitate the connection and removal between the cover 30 and the outer shell body 21.

[0052] In this disclosure, Figure 3 and Figure 5 As shown, the filter element 10 may include a filter housing 11 and a filter screen structure 12. The filter screen structure 12 is disposed within the filter housing 11. The filter housing 11 has a first opening and a second opening. The first opening is disposed correspondingly to the water inlet 22, and the second opening is disposed correspondingly to the water outlet 23. With this arrangement, the filter element 10 communicates with the water inlet 22 and the water outlet 23 via the first opening and the second opening, ensuring that liquid can pass through the filter element 10 and be filtered by the filter screen structure 12.

[0053] In some embodiments, as Figure 3As shown, the filter structure 12 can be arranged at the position of the second opening, that is, close to the water outlet 23, which facilitates the arrangement of the filter element 10 and ensures that impurities in the liquid are filtered.

[0054] In this disclosure, Figure 5 As shown, the filter element housing 11 may include a side plate 111 and a first end plate 112 that are connected to each other. The side plate 111 abuts the inner wall of the outer shell 20. The contour shape of the outer wall of the side plate 111 is adapted to the shape of the inner wall of the corresponding part of the outer shell 20. One end of the filter structure 12 is connected to the first end plate 112, and the filter structure 12 is arranged at the second opening. Such an arrangement facilitates the design of the filter element 10 and is also beneficial for the installation of the filter element 10 in the inner cavity 24 of the outer shell 20. Among them, abutting can refer to the two being able to fit in contact. In the present disclosure, the shape of the side plate 111 of the filter element 10 is adapted to the inner wall of the outer shell 20, which can facilitate the insertion of the filter element 10 into the inner cavity 24 and fit with the inner wall of the outer shell 20, preventing impurities from passing through the gap formed between the two. The first end plate 112 is connected to the side plate 111 and is connected to the filter structure 12 , which can support the filter structure 12 and fix the position of the filter structure 12 in the inner cavity 24 of the shell 20 , so that the filter structure 12 can follow the filter element shell 11 to be fixed and moved in the inner cavity 24 .

[0055] In this disclosure, Figure 3 and Figure 5 As shown, the filter structure 12 may include a plurality of cross-arranged filter rods 121, with the gaps between the plurality of filter rods 121 forming filter ports 122 for liquid to pass through, wherein one end of at least one filter rod 121 may be connected to the first end plate 112. Thus, by configuring the filter structure 12 with cross-arranged filter rods 121, the filter ports 122 formed can filter larger impurities without restricting smaller impurities. This ensures that the liquid can filter large impurities within the filter element 10 while still allowing for smooth flow, thereby ensuring drainage speed.

[0056] In some embodiments of the present disclosure, the plurality of filter rods 121 are evenly and equidistantly arranged to ensure that the plurality of filter ports 122 are substantially the same in size, thereby making the volume of filtered impurities substantially the same and the filter rods 121 evenly stressed.

[0057] In this disclosure, Figure 5 As shown, the plurality of filter rods 121 can be integrally formed with each other, and / or the plurality of filter rods 121 can be integrally formed with the filter housing 11. This arrangement can enhance the stability of the filter structure 12 itself and the connection between the filter structure 12 and the filter housing 11, thereby improving the strength of the filter element 10 itself and facilitating processing.

[0058] In this disclosure, Figure 1As shown, the drain filter 100 may further include a threaded fastener 40 for connecting the cover 30 and the filter element 10. The filter element 10 and the cover 30 are connected via the threaded fastener 40. This facilitates connection and disassembly between the two.

[0059] For example, the threaded fastener 40 may be a suitable threaded fastener 40 such as a screw or a bolt, and the present disclosure is not limited thereto.

[0060] In this disclosure, Figures 3 to 5 As shown, the filter element 10 may be provided with a second end plate 113 , and the second end plate 113 is connected to the cover body 30 via a threaded fastener 40 .

[0061] For example, the second end plate 113 can be installed on the side plate 111 of the filter element housing 11, and a through hole 114 can be provided on the second end plate 113. The inner wall of the cover body 30 can be provided with a threaded fastener hole 31 protruding from the inner wall. The threaded fastener 40 (such as a screw) is passed through the through hole 114 and threadedly connected to the threaded fastener hole 31 to complete the connection between the filter element 10 and the cover body 30.

[0062] In some embodiments of the present disclosure, Figure 5 As shown, a first notch and a second notch are formed on the side plate 111, with the first notch facing the water inlet 22 and the second notch facing the water outlet 23. The first end plate 112 and the second end plate 113, together with the side edge of the side plate 111 defining the first notch, form a first opening. The first end plate 112 and the second end plate 113, together with the side edge of the side plate 111 defining the second notch, form a second opening.

[0063] In this disclosure, Figure 1 and Figure 3 As shown, the drain filter 100 may further include a seal 50 for sealing the cover 30 and the housing body 21. This arrangement can seal the connection gap between the cover 30 at the installation opening 25 and the housing body 21 to prevent liquid leakage at the installation opening 25.

[0064] Among them, the interior of the seal 50 can be hollowed out to prevent interference with the connection between the filter element 10 and the cover body 30. The exterior of the seal 50 can be provided with an outer ring step surface, and the diameter of the outer ring step surface is larger than the diameter of the mounting port 25, so that the outer ring step surface can be pressed onto the cover body 30 and the mounting port 25 at the same time to complete the sealing of the two.

[0065] In this disclosure, Figure 3As shown, the drain filter 100 may further include a support member 60. The filter element 10 is provided with a second end plate 113. The support member 60 is arranged between the sealing member 50 and the second end plate 113 and is pressed against the second end plate 113 and the sealing member 50. The support member 60 can fill the gap between the second end plate 113 and the cover 30 and can fix the sealing member 50 in the cover 30.

[0066] In this disclosure, Figure 2 As shown, the axis of the water inlet 22 can be perpendicular to the axis of the water outlet 23. In this way, a spatial position can be provided for the arrangement of the installation port 25.

[0067] In some embodiments, as Figure 3 As shown, the axis of the installation port 25 can be arranged parallel to the axis of the water inlet 22, so that the liquid flow rate is slowed down at the turning point of the liquid flow path, and impurities in the liquid are filtered, which is beneficial to improving the filtering efficiency of impurities in the liquid.

[0068] According to the second aspect of the present disclosure, Figure 1 and Figure 6 As shown, a washing machine 1000 is provided, including a washing tub 200, a drain valve 400, a drain pipe 300 connected between the washing tub 200 and the drain valve 400, and a drain filter 100, the drain filter 100 being connected to the drain pipe 300 through a water inlet 22 and a water outlet 23.

[0069] The flow path of the liquid discharged from the washing tub 200 is through the drain pipe 300 and the drain filter 100 and then discharged to the drain valve 400, that is, the drain filter 100 is installed between the drain pipe 300 and the drain valve 400, and the water inlet 22 of the drain filter 100 can be connected to the drain pipe 300, and the water outlet 23 of the drain filter 100 can be connected to the drain valve 400 to form a complete drainage channel of the washing machine 1000. The drain filter 100 filters the liquid before reaching the drain valve 400, so that the impurities in the liquid at the drain valve 400 position are reduced, thereby ensuring the drainage efficiency and reducing the blockage of the drainage of the washing machine 1000.

[0070] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings. However, the present disclosure is not limited to the specific details of the above embodiments. Within the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all fall within the scope of protection of the present disclosure.

[0071] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any appropriate manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0072] In addition, the various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A drainage filter, characterized in that: Including housing and filter, The housing comprises a housing body, a water inlet, a water outlet and an inner cavity, the water inlet and the water outlet are respectively connected to the inner cavity, and the drainage filter is adapted to be connected to a drainage pipe between the washing tub and the drainage valve of the washing machine through the water inlet and the water outlet; The filter element is arranged in the inner cavity and located between the water inlet and the water outlet; The filter element comprises a filter element housing and a filter screen structure, wherein the filter screen structure is arranged inside the filter element housing; The filter housing has a first opening and a second opening, wherein the first opening is arranged corresponding to the water inlet, and the second opening is arranged corresponding to the water outlet.

2. The drainage filter according to claim 1, characterized in that The filter element is detachably mounted on the inner cavity.

3. The drainage filter according to claim 2, characterized in that The housing body further comprises a mounting opening communicating with the inner cavity, wherein the mounting opening is suitable for allowing the filter element to be inserted into or withdrawn from the inner cavity; The drainage filter further comprises a cover body, the cover body is connected to the filter element, and the cover body is suitable for sealing and covering the installation port.

4. The drainage filter according to claim 3, characterized in that The inner wall of the cover body is provided with an internal thread section, and the outer shell body is provided with an external thread section; The cover body and the shell body are adapted to be threadedly connected by matching the internal thread section with the external thread section.

5. The drainage filter according to any one of claims 1 to 4, characterized in that: The filter housing comprises a side plate and a first end plate connected to each other, wherein the side plate abuts against the inner wall of the shell, and the outer wall of the side plate has a contour shape adapted to the shape of the inner wall of the corresponding portion of the shell; One end of the filter structure is connected to the first end plate, and the filter structure is disposed at the second opening.

6. The drainage filter according to any one of claims 1 to 4, characterized in that: The filter structure includes a plurality of filter rods arranged crosswise, and the gaps between the plurality of filter rods are configured as filter ports for liquid to pass through.

7. The drainage filter according to claim 6, characterized in that The plurality of filter rods are integrally formed; and / or the plurality of filter rods and the filter element housing are integrally formed.

8. The drainage filter according to claim 3 or 4, characterized in that: The drainage filter further includes a threaded fastener for connecting the cover and the filter element; The filter element and the cover body are connected via the threaded fastener.

9. The drainage filter according to claim 8, characterized in that The filter element is provided with a second end plate, and the second end plate is connected to the cover body via the threaded fastener.

10. The drainage filter according to claim 8, characterized in that The drainage filter further includes a sealing member; The sealing member is used to seal the cover and the shell body.

11. The drainage filter according to claim 10, characterized in that The drainage filter further comprises a support member, and a second end plate is provided on the filter member; The support member is arranged between the sealing member and the second end plate, and is press-connected to the second end plate and the sealing member.

12. The drainage filter according to any one of claims 1 to 4, characterized in that: The axis of the water inlet is perpendicular to the axis of the water outlet.

13. A washing machine, characterized in that: comprising a washing tub, a drain valve, a drain pipe connected between the washing tub and the drain valve, and a drain filter according to any one of claims 1 to 12; The drainage filter is connected to the drainage pipe through the water inlet and the water outlet.

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