Filter device of washing machine

Abstract

The utility model discloses a washing machine filtering device which comprises a shell, a filtering cavity is formed in the shell, an installation opening communicated with the filtering cavity is formed in one side of the shell, and a clamping groove is formed in the side wall of the installation opening. The filter can be mounted in the filtering cavity through the mounting opening; the sealing cover comprises a main cover body, an elastic lock catch and an unlocking button, a containing groove is formed in the outer side of the main cover body, and the elastic lock catch is installed in the containing groove, extends out through the through hole and is connected with the clamping groove in a clamped mode so that the main cover body can be locked in the state of sealing the installation opening; the unlocking button is installed in the containing groove, when the main cover body is locked in the installation opening, the surface of the unlocking button is flush with the surface of the main cover body and seals the opening of the containing groove, the unlocking button is connected with the elastic lock catch, and the elastic lock catch can be driven to be unlocked by pressing the unlocking button. The unlocking button does not protrude out of the outer surface of the main cover body, so that the problems that the unlocking button occupies installation space and is prone to being impacted and broken by external force, and the appearance of the washing machine is affected can be solved.

Description

Technical Field

[0001] The present application relates to the technical field of washing machine components, and particularly relates to a washing machine filtering device. Background Art

[0002] In the water circulation pipeline system of some existing washing machines, a filter box is provided. The filter box can filter out impurities such as cotton wool that are likely to cause blockage in the washing water, and then the filtered water is circulated back to the washing drum or discharged. The filter screen in the filter box is a consumable. After being used for a certain period of time, it needs to be removed for cleaning or replacement. Therefore, the filter screen of the existing filter box is generally set to be easily disassembled and assembled. Specifically, the filter box is installed near the washing machine housing, and the sealing cover on the filter box is exposed on the surface of the housing. The sealing cover is generally installed on the filter box by threads. In order to facilitate user operation, a protruding handle is also provided on the sealing cover, so that the user can easily disassemble and assemble the sealing cover by twisting the handle to complete the cleaning or replacement operation of the filter screen in the filter box. However, the handle protruding from the surface of the washing machine housing will occupy a certain installation space and may affect the placement of the washing machine in some cases; moreover, the protruding handle is also at risk of being broken by an external impact; in addition, the protruding handle will also affect the overall appearance of the washing machine. Summary of the Utility Model

[0003] The purpose of the embodiments of the present utility model is to provide a washing machine filtering device, which can solve the above problems existing in the prior art.

[0004] To achieve the above object, the present application adopts the following technical solutions:

[0005] A washing machine filtering device includes:

[0006] A housing, which forms a filtering cavity inside, has an installation opening formed on one side and communicated with the filtering cavity, and a clamping groove is provided on the side wall of the installation opening; an inlet joint and an outlet joint respectively communicated with the filtering cavity are also provided on the housing;

[0007] A filter, which can be installed into the filtering cavity through the installation opening;

[0008] A sealing cover, including a main cover body, an elastic lock catch and an unlocking button. A receiving groove is provided on the outer side of the main cover body, and a through hole is provided on the side wall of the receiving groove. The elastic lock catch is installed in the receiving groove and extends out through the through hole and is clamped with the clamping groove to lock the main cover body in a state of closing the installation opening; the unlocking button is installed in the receiving groove. When the main cover body is locked at the installation opening, the surface of the unlocking button is flush with the surface of the main cover body and closes the opening of the receiving groove, and the unlocking button is connected to the elastic lock catch. By pressing the unlocking button, the elastic lock catch can be driven to unlock.

[0009] Optionally, an annular step is provided inside the installation opening, and a waterproof ring is connected to the inside of the main cover body. The waterproof ring abuts against the annular step to seal the installation opening.

[0010] Optionally, the waterproof ring is in the shape of a corrugated pipe. When the main cover body is locked in a state of closing the installation opening, the waterproof ring is in a compressed state, so that when the elastic lock is unlocked, the waterproof ring can eject the main cover body out of the installation opening through its elastic force.

[0011] Optionally, the elastic lock includes a spring and a sliding buckle. The sliding buckle is slidably installed in the receiving groove. The spring is connected to the sliding buckle and applies a thrust to the sliding buckle, so that the sliding buckle extends out through the through hole to be clamped into the card slot.

[0012] Optionally, a first guiding inclined surface is provided on one side of the sliding buckle close to the unlocking button, and an unlocking protrusion is provided on one side of the unlocking button close to the sliding buckle. A second guiding inclined surface adapted to the first guiding inclined surface is provided on the unlocking protrusion. By pressing the unlocking button, the first guiding inclined surface and the second guiding inclined surface slide relative to each other, thereby pushing the sliding buckle to retract and disengage from the card slot.

[0013] Optionally, the elastic lock includes two symmetrically arranged sliding buckles, and the spring is arranged between the two sliding buckles.

[0014] Optionally, the main cover body includes a main body portion and a decorative ring. The receiving groove is provided on the main body portion; the decorative ring is installed on one side of the main body portion with the opening of the receiving groove, and the unlocking button is restricted in the receiving groove through the decorative ring.

[0015] Optionally, a sunk groove with a depth corresponding to the thickness of the decorative ring is provided on the edge of the unlocking button. The decorative ring is fitted with the sunk groove to restrict the unlocking button in the receiving groove and make the surface of the unlocking button flush with the surface of the decorative ring.

[0016] Optionally, the filter is connected to the sealing cover, and the filter can be driven in and out of the filter chamber through the sealing cover.

[0017] Optionally, the filter includes a filter frame and a filter net detachably installed on the filter frame, and the sealing cover is connected to the filter frame.

[0018] The beneficial effects of this application are as follows: The present utility model provides a washing machine filter box, which can be applied to the water circulation pipeline system of a washing machine to filter the washing water. A filter is arranged inside the outer shell of the filter box for filtering the washing water, and a sealing cover is provided to seal the installation opening of the outer shell. When it is necessary to clean or replace the filter, the sealing cover can be simply opened to take out the filter, and after reinstalling the filter, the sealing cover can be reinstalled. In the installation structure of the sealing cover of this solution, an elastic lock catch is arranged on the main cover body to cooperate with the card slot inside the installation opening to lock the sealing cover. At the same time, an unlocking button installed by being embedded in the main cover body is provided, which is convenient for the user to press the unlocking button to unlock the elastic lock catch when disassembling. The unlocking button is installed by being embedded, and in the normal state, its surface is flush with the outer surface of the main cover body, that is, the unlocking button does not protrude from the outer surface of the main cover body, thereby avoiding problems such as the unlocking button occupying the installation space, being easily broken by external force impact, and affecting the appearance of the washing machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The following further elaborates on this application in detail according to the drawings and embodiments.

[0020] Figure 1 is a schematic structural diagram of the washing machine filtering device according to the embodiment of this application;

[0021] Figure 2 is an exploded view of the washing machine filtering device according to the embodiment of this application;

[0022] Figure 3 is a schematic structural diagram of the connection between the sealing cover and the filter according to the embodiment of this application;

[0023] Figure 4 is Figure 3 an exploded view of the structure shown;

[0024] Figure 5 is an axial sectional view of the sealing cover according to the embodiment of this application;

[0025] Figure 6 is one of the exploded views of the sealing cover according to the embodiment of this application;

[0026] Figure 7 is the second exploded view of the sealing cover according to the embodiment of this application.

[0027] In the figure:

[0028] 1. Housing; 11. Filter chamber; 12. Installation port; 13. Card slot; 14. Annular step; 15. Water inlet connector; 16. Water outlet connector; 2. Sealing cover; 21. Main cover body; 211. Accommodating groove; 212. Main body part; 213. Decorative ring; 22. Elastic lock; 221. Sliding buckle; 2211. First guiding inclined surface; 222. Spring; 23. Unlock button; 231. Unlock protrusion; 2311. Second guiding inclined surface; 232. Counterbore; 24. Waterproof ring; 3. Filter; 31. Filter frame. Detailed implementation manners

[0029] To make the technical problems solved by this application, the technical solutions adopted and the achieved technical effects clearer, the following further describes in detail the technical solutions of the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of this application.

[0030] In the description of this application, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this utility model can be understood according to specific situations.

[0031] In this application, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "above", and "on the top" of the second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "below", and "beneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or simply means that the horizontal height of the first feature is lower than that of the second feature.

[0032] In the water circulation pipeline system of some existing washing machines, a filter box is provided. The filter box can filter out impurities such as cotton wool in the washing water that are likely to cause blockages, and then the filtered water is circulated back to the washing drum or discharged. The filter screen in the filter box is a consumable. After being used for a certain period of time, it needs to be removed for cleaning or replacement. Therefore, the filter screen of the existing filter box is generally set as an easily disassembled and assembled structure. Specifically, the filter box is installed near the washing machine casing, and the sealing cover on the filter box is exposed on the surface of the casing. The sealing cover is generally installed on the filter box by threads. For the convenience of users to operate, a protruding handle is also provided on the sealing cover, so that users can easily disassemble and assemble the sealing cover by twisting the handle to complete the cleaning or replacement operation of the filter screen in the filter box. However, the handle protruding from the surface of the washing machine casing will occupy a certain installation space and may affect the placement of the washing machine in some cases; moreover, the protruding handle is also at risk of being broken by an external impact; in addition, the protruding handle will also affect the overall appearance of the washing machine.

[0033] To overcome the above technical problems, referring to Figures 1-7 , this embodiment provides a washing machine filter device, which includes a housing 1, a filter 3 and a sealing cover 2. A filter cavity 11 is formed inside the housing 1, and an installation port 12 communicating with the filter cavity 11 is formed on one side. A clamping groove 13 is provided on the side wall of the installation port 12; an inlet joint 15 and an outlet joint 16 communicating with the filter cavity 11 are also provided on the housing 1; the filter 3 can be installed into the filter cavity 11 through the installation port 12; the sealing cover 2 includes a main cover body 21, an elastic lock 22 and an unlocking button 23. A receiving groove 211 is provided on the outer side of the main cover body 21. A through hole is provided on the side wall of the receiving groove 211. The elastic lock is installed in the receiving groove 211 and extends out through the through hole to be clamped with the clamping groove 13 to lock the main cover body 21 in a state of closing the installation port 12; the unlocking button 23 is installed in the receiving groove 211. When the main cover body 21 is locked at the installation port 12, the surface of the unlocking button 23 is flush with the surface of the main cover body 21 and closes the opening of the receiving groove 211, and the unlocking button 23 is connected to the elastic lock 22. By pressing the unlocking button 23, the elastic lock 22 can be driven to unlock.

[0034] Specifically, during application, the filter 3 is installed in the filtering cavity 11 through the installation opening 12, and the installation opening 12 is blocked by the installation of the sealing cover 2. The water inlet joint 15 and the water outlet joint 16 are respectively connected to the water inlet pipe and the water outlet pipe. The washing water in the washing drum is introduced into the filtering cavity 11 through the water inlet pipe. After being filtered by the filter 3, it then flows out through the water outlet pipe. The water outlet pipe can be connected to the washing drum to realize sending the filtered water back to the washing drum for reuse, or it can be directly connected to the drainage pipe to discharge the filtered water. Filtering the cotton flocs in the washing water before discharging can effectively avoid the problem of drainage pipe blockage.

[0035] Based on the washing machine filter box of this embodiment, a filter 3 is provided in the outer shell 1 for filtering the washing water, and a sealing cover 2 is provided to seal the installation opening 12 of the outer shell 1. When it is necessary to clean or replace the filter 3, only the sealing cover 2 needs to be opened to take out the filter 3. After reinstalling the filter 3, the sealing cover 2 can be reinstalled. In the installation structure of the sealing cover 2 of this solution, an elastic lock 22 is provided on the main cover body 21 to cooperate with the clamping groove 13 inside the installation opening 12 to realize the locking of the sealing cover 2. At the same time, an unlocking button 23 installed by being embedded in the main cover body 21 is provided, which is convenient for the user to press the unlocking button 23 to unlock the elastic lock 22 during disassembly. The unlocking button 23 is installed by being embedded. In the normal state, its surface is flush with the outer surface of the main cover body 21, that is, the unlocking button 23 does not protrude from the outer surface of the main cover body 21, thereby avoiding problems such as the unlocking button 23 occupying the installation space, being easily broken by external force impact, and affecting the appearance of the washing machine.

[0036] In one embodiment, referring to Figure 2 , a circular step 14 is provided inside the installation opening 12, and a waterproof ring 24 is connected to the inner side of the main cover body 21. The waterproof ring 24 abuts against the circular step 14 to realize the sealing of the installation opening 12.

[0037] The waterproof ring 24 is usually made of an elastic material such as rubber or silicone, and has good sealing performance and corrosion resistance; the design of the circular step 14 provides a stable contact surface for the waterproof ring 24, so that the waterproof ring 24 can be uniformly stressed and closely fit; when the main cover body 21 is installed on the outer shell 1, the waterproof ring 24 will closely abut against the circular step 14 to form an effective sealing barrier to prevent water from leaking from the installation opening 12.

[0038] During the installation process, the user only needs to align the side of the sealing cover 2 with the waterproof ring 24 to the installation opening 12 and press it in, so that the elastic latch 22 can be correspondingly clamped into the card slot 13 on the side wall of the installation opening 12, and the waterproof ring 24 will naturally abut against the annular step 14 to achieve sealing. This process is simple and fast, without the need for additional tools or complex operations. When it is necessary to disassemble the main cover body 21 for cleaning or replacing the filter 3, the user only needs to press the unlocking button 23 and gently pull out the sealing cover 2.

[0039] In one embodiment, the waterproof ring 24 is in a corrugated shape. When the main cover body 21 is locked in a state of closing the installation opening 12, the waterproof ring 24 is in a compressed state, so that when the elastic latch 22 is unlocked, the waterproof ring 24 can eject the main cover body 21 from the installation opening 12 through elastic force.

[0040] The corrugated waterproof ring 24 has a larger deformation space and can provide greater elastic force. When the elastic latch 22 is unlocked, since the waterproof ring 24 was in a compressed state before, it will use its own elastic force to try to return to the uncompressed form. During this process, the elastic force will act on the main cover body 21, making it easier to pop out from the installation opening 12. This automatic ejection feature simplifies the disassembly process and improves the user experience.

[0041] In one embodiment, referring to Figures 5-7 , the elastic latch 22 includes a spring 222 and a sliding buckle 221. The sliding buckle 221 is slidably installed in the receiving groove 211. The spring 222 connects the sliding buckle 221 and applies a thrust to the sliding buckle 221, so that the sliding buckle 221 extends out through the through hole to be clamped into the card slot 13.

[0042] During installation, when the main cover body 21 reaches the predetermined position, the thrust of the spring 222 will push the sliding buckle 221 to slide outwards again and be clamped into the card slot 13, thereby firmly locking the main cover body 21 on the installation opening 12. When unlocking, the user only needs to press the unlocking button 23 to make the sliding buckle 221 slide inwards and disengage from the card slot 13, thereby allowing the main cover body 21 to be removed.

[0043] For convenient installation, one end of the sliding buckle 221 for being inserted into the card slot 13 is provided with an inclined surface. During the installation process, the edge of the installation opening 12 can squeeze the inclined surface, so that the sliding buckle 221 can gradually retract automatically. When it is installed until the sliding buckle 221 is aligned with the card slot 13, the spring 222 can then pop out the sliding buckle 221, so that the sliding buckle 221 is clamped and locked with the card slot 13.

[0044] The combination of the spring 222 and the buckle 221 provides a stable and reliable locking mechanism. Even in an environment with large vibrations or impacts, this design can maintain the firm locking of the main cover 21. Therefore, the elastic lock 22 structure of this solution has the advantage of good reliability.

[0045] In one embodiment, a first guiding inclined surface 2211 is provided on one side of the buckle 221 close to the unlocking button 23, an unlocking protrusion 231 is provided on one side of the unlocking button 23 close to the buckle 221, and a second guiding inclined surface 2311 adapted to the first guiding inclined surface 2211 is provided on the unlocking protrusion 231. By pressing the unlocking button 23, the first guiding inclined surface 2211 and the second guiding inclined surface 2311 slide relative to each other, thereby pushing the buckle 221 to retract and disengage from the card slot 13.

[0046] Through the mutual cooperation of the first guiding inclined surface 2211 and the second guiding inclined surface 2311, the axial pressing force applied by the user to the unlocking button 23 is converted into the radial sliding of the buckle 221, thereby realizing the sliding unlocking of the buckle 221. The unlocking process becomes efficient and smooth, and the user only needs to gently press the unlocking button 23 to complete the unlocking operation. This structure has the advantages of simplicity and reliability.

[0047] In one embodiment, the elastic lock 22 includes two symmetrically arranged buckles 221, and the spring 222 is arranged between the two buckles 221.

[0048] Arranging the spring 222 between the two buckles 221 can not only simplify the structure and reduce the number of components, but also enable the thrust of the spring 222 to act evenly on the two buckles 221, thereby achieving a more stable and reliable locking effect.

[0049] In one embodiment, the main cover 21 includes a main body portion 212 and a decorative ring 213, and the receiving groove 211 is provided on the main body portion 212; the decorative ring 213 is installed on one side of the main body portion 212 with the opening of the receiving groove 211, and the unlocking button 23 is restricted in the receiving groove 211 through the decorative ring 213.

[0050] The cross-section of the unlocking button 23 is adapted to the cross-section of the receiving groove 211, so that the unlocking button 23 can just be inserted into the receiving groove 211 to complete the filling of the receiving groove 211. An independent decorative ring 213 is provided and installed on the main body portion 212, which has the effect of facilitating the installation of the unlocking button 23. Specifically, during assembly, the elastic lock 22 and the unlocking button 23 can be first inserted into the receiving groove 211 of the main body portion 212, and then the decorative ring 213 is installed on the main body portion 212, thereby restricting the unlocking button 23 within the receiving groove 211 and ensuring the reliability of the unlocking button 23. Among them, the decorative ring 213 can be fixed to the main body portion 212 by means of screws, buckles or adhesives, etc.

[0051] In one embodiment, a sinking groove 232 with a depth corresponding to the thickness of the decorative ring 213 is provided at the edge of the unlocking button 23, and the decorative ring 213 is fitted into the sinking groove 232 to restrict the unlocking button 23 within the receiving groove 211 and make the surface of the unlocking button 23 flush with the surface of the decorative ring 213.

[0052] The sinking groove 232 at the edge of the unlocking button 23 matches the thickness of the decorative ring 213. When the decorative ring 213 is installed on the main body portion 212, it will be tightly fitted into the sinking groove 232. This fitting relationship effectively restricts the accidental detachment or shaking of the unlocking button 23 during use. The design of the sinking groove 232 enables the surface of the unlocking button 23 to be flush with the surface of the decorative ring 213, eliminating the height difference between the two and making the whole device look cleaner and more beautiful.

[0053] In one embodiment, the filter 3 is connected to the sealing cover 2, and the filter 3 can be driven in and out of the filter cavity 11 through the sealing cover 2.

[0054] During the process of disassembling and assembling the filter 3, the user does not need to directly operate the filter 3, but can indirectly control the entry and exit of the filter 3 by moving the sealing cover 2. This design simplifies the operation process, reduces the complexity and difficulty of user operation, and makes the cleaning and maintenance work easier and faster.

[0055] In one embodiment, the filter 3 includes a filter frame 31 and a filter net (not shown in the figure) detachably installed on the filter frame 31, and the sealing cover 2 is connected to the filter frame 31.

[0056] The filter frame 31 is provided to provide stable support for the filter net, so that it can be stably maintained in a state where normal filtration can be provided. Adopting the form of combining the filter net and the filter frame 31, when replacing, only the filter net needs to be replaced separately, and the cost of part replacement is lower.

[0057] In the description of this document, it should be understood that the orientation or positional relationships such as "upper", "lower", "left", "right", etc. are only for the convenience of description and simplifying operations, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it should not be construed as a limitation to this application. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0058] In the description of this specification, the description referring to terms such as "an embodiment", "example", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example.

[0059] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0060] The technical principles of this application have been described above in combination with specific embodiments. These descriptions are only for explaining the principles of this application and cannot be construed as a limitation to the protection scope of this application in any way. Based on the explanations herein, those skilled in the art can think of other specific embodiments of this application without creative efforts, and these ways will fall within the protection scope of this application.

Claims

1. A washing machine filtering device, characterized in that, Comprising: A housing (1) with a filter chamber (11) formed inside, an installation opening (12) communicating with the filter chamber (11) formed on one side, and a clamping groove (13) provided on the side wall of the installation opening (12); an inlet joint (15) and an outlet joint (16) respectively communicating with the filter chamber (11) are further provided on the housing (1); A filter (3) that can be installed into the filter chamber (11) through the installation opening (12); A sealing cover (2), including a main cover body (21), an elastic lock (22) and an unlocking button (23). A receiving groove (211) is provided on the outer side of the main cover body (21), a through hole is provided on the side wall of the receiving groove (211), the elastic lock (22) is installed in the receiving groove (211), and extends out through the through hole and is clamped with the clamping groove (13) to lock the main cover body (21) in a state of closing the installation opening (12); the unlocking button (23) is installed in the receiving groove (211). When the main cover body (21) is locked to the installation opening (12), the surface of the unlocking button (23) is flush with the surface of the main cover body (21) and closes the opening of the receiving groove (211), and the unlocking button (23) is connected to the elastic lock (22). By pressing the unlocking button (23), the elastic lock (22) can be driven to unlock.

2. The washing machine filtering device according to claim 1, characterized in that, An annular step (14) is provided inside the installation opening (12), a waterproof ring (24) is connected to the inner side of the main cover body (21), and the waterproof ring (24) abuts against the annular step (14) to seal the installation opening (12).

3. The washing machine filtering device according to claim 2, characterized in that, The waterproof ring (24) is in a corrugated shape. When the main cover body (21) is locked in a state of closing the installation opening (12), the waterproof ring (24) is in a compressed state, so that when the elastic lock (22) is unlocked, the waterproof ring (24) can eject the main cover body (21) out of the installation opening (12) by elastic force.

4. The washing machine filtering device according to claim 1, characterized in that, The elastic lock (22) includes a spring (222) and a sliding buckle (221). The sliding buckle (221) is slidably installed in the receiving groove (211), the spring (222) is connected to the sliding buckle (221) and applies a thrust to the sliding buckle (221), so that the sliding buckle (221) extends out through the through hole to be clamped to the clamping groove (13).

5. The washing machine filtering device according to claim 4, characterized in that, A first guiding inclined surface (2211) is provided on one side of the sliding buckle (221) close to the unlocking button (23), an unlocking protrusion (231) is provided on one side of the unlocking button (23) close to the sliding buckle (221), and a second guiding inclined surface (2311) adapted to the first guiding inclined surface (2211) is provided on the unlocking protrusion (231). By pressing the unlocking button (23), the first guiding inclined surface (2211) and the second guiding inclined surface (2311) slide relative to each other, thereby pushing the sliding buckle (221) to retract and disengage from the clamping groove (13).

6. The washing machine filter device according to claim 4, characterized in that, The elastic lock (22) includes two symmetrically arranged sliding locks (221), and the spring (222) is arranged between the two sliding locks (221).

7. The washing machine filtering device according to claim 1, characterized in that, The main cover body (21) includes a main body portion (212) and a decorative ring (213). The accommodating groove (211) is arranged on the main body portion (212); the decorative ring (213) is installed on one side of the main body portion (212) with the opening of the accommodating groove (211), and the unlocking button (23) is restricted in the accommodating groove (211) through the decorative ring (213).

8. The washing machine filtering device according to claim 7, characterized in that, A sunk groove (232) with a depth corresponding to the thickness of the decorative ring (213) is arranged on the edge of the unlocking button (23). The decorative ring (213) is fitted with the sunk groove (232) to restrict the unlocking button (23) in the accommodating groove (211) and make the surface of the unlocking button (23) flush with the surface of the decorative ring (213).

9. The washing machine filtering device according to claim 1, characterized in that, The filter (3) is connected to the sealing cover (2), and the sealing cover (2) can drive the filter (3) to enter and exit the filtering cavity (11).

10. The washing machine filtering device according to claim 9, characterized in that, The filter (3) includes a filter frame (31) and a filter net detachably installed on the filter frame (31), and the sealing cover (2) is connected to the filter frame (31).

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